@font-face{font-family:'Inter';font-style:normal;font-weight:400 900;font-display:swap;src:url('/fonts/inter-variable-full-normal.woff2') format('woff2')}@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400 800;font-display:swap;src:url('/fonts/jetbrains-mono-variable-full-normal.woff2') format('woff2')}@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:300 700;font-display:swap;src:url('/fonts/space-grotesk-variable-full-normal.woff2') format('woff2')}:root{--bg:#F6F7FB;--bg-secondary:#ECEEF5;--bg-tertiary:#E1E4EE;--bg-overlay:rgba(246,247,251,0.88);--text:#12142B;--text-secondary:#565A72;--text-muted:#9195AC;--text-inverse:#FFFFFF;--primary:#FF5A1F;--primary-hover:#E64A12;--primary-light:#FFE6D9;--primary-dark:#B33A10;--secondary:#1D4FD1;--secondary-hover:#163EA8;--secondary-light:#DEE6FB;--accent:#0EA5A0;--accent-hover:#0B8883;--accent-light:#D7F5F2;--success:#16A34A;--success-light:#DCFCE7;--warning:#D97706;--warning-light:#FEF3C7;--error:#DC2626;--error-light:#FEE2E2;--info:#1D4FD1;--info-light:#DEE6FB;--cat-pdf:#DC2626;--cat-pdf-light:rgba(220,38,38,0.12);--cat-image:#7C3AED;--cat-image-light:rgba(124,58,237,0.12);--cat-text:#059669;--cat-text-light:rgba(5,150,105,0.12);--cat-calc:#CA8A04;--cat-calc-light:rgba(202,138,4,0.12);--cat-dev:#0891B2;--cat-dev-light:rgba(8,145,178,0.12);--card-bg:#FFFFFF;--card-border:#E1E4EE;--card-shadow:0 4px 12px rgba(18,20,43,0.07);--card-shadow-hover:0 12px 32px rgba(255,90,31,0.14),0 4px 12px rgba(18,20,43,0.06);--nav-bg:rgba(246,247,251,0.92);--nav-border:#E1E4EE;--input-bg:#FFFFFF;--input-border:#E1E4EE;--input-focus:#FF5A1F;--input-shadow:0 0 0 3px rgba(255,90,31,0.15);--gradient-hero:linear-gradient(135deg,#0B0E1A 0%,#101637 55%,#1A2A63 100%);--gradient-card:linear-gradient(135deg,#F6F7FB 0%,#FFFFFF 100%);--gradient-accent:linear-gradient(135deg,#FF5A1F 0%,#0EA5A0 100%);--surface:var(--card-bg);--surface-2:var(--bg-secondary);--ink:var(--text);--ink-soft:var(--text-secondary);--border:var(--card-border);--border-color:var(--card-border);--accent-soft:var(--primary-light);--success-soft:var(--success-light);--radius-pill:var(--radius-full);--font-body:var(--font-primary);--bg-primary:var(--bg);--surface-1:var(--card-bg);--surface-3:var(--bg-tertiary);--text-md:var(--text-base);--success-dark:#0D7A45;--warning-dark:#B45309;--bg-accessible:var(--bg-secondary);--text-accessible:var(--text);--font-primary:'Inter',system-ui,-apple-system,sans-serif;--font-display:'Space Grotesk','Inter',system-ui,-apple-system,sans-serif;--font-mono:'JetBrains Mono',monospace;--text-xs:0.75rem;--text-sm:0.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--text-5xl:3rem;--text-6xl:3.75rem;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--radius-sm:0.5rem;--radius-md:0.75rem;--radius-lg:0.875rem;--radius-xl:1rem;--radius-2xl:1.25rem;--radius-full:9999px;--transition-fast:0.15s ease;--transition-base:0.2s ease;--transition-slow:0.35s ease;--transition-theme:0.3s cubic-bezier(0.4,0,0.2,1);--z-dropdown:100;--z-sticky:200;--z-overlay:300;--z-modal:400;--z-toast:500;--shadow-sm:0 1px 2px rgba(15,23,42,0.05);--shadow-md:0 4px 12px rgba(15,23,42,0.08);--shadow-lg:0 10px 40px rgba(15,23,42,0.12);--shadow-xl:0 20px 60px rgba(15,23,42,0.15);--container-max:1280px;--nav-height:72px}[data-theme="dark"]{--bg:#0B0E1A;--bg-secondary:#121627;--bg-tertiary:#1B2036;--bg-overlay:rgba(11,14,26,0.92);--text:#F3F4FA;--text-secondary:#B7BBD1;--text-muted:#6D7290;--text-inverse:#0B0E1A;--primary:#FF7A42;--primary-hover:#FF9563;--primary-light:rgba(255,122,66,0.16);--primary-dark:#C2450F;--secondary:#5B82F5;--secondary-hover:#7C9BFF;--secondary-light:rgba(91,130,245,0.16);--accent:#2DD4CB;--accent-hover:#5EEAE1;--accent-light:rgba(45,212,203,0.16);--success:#4ADE80;--success-light:rgba(74,222,128,0.15);--warning:#FBBF24;--warning-light:rgba(251,191,36,0.15);--error:#F87171;--error-light:rgba(248,113,113,0.15);--info:#5B82F5;--info-light:rgba(91,130,245,0.15);--cat-pdf:#F87171;--cat-pdf-light:rgba(248,113,113,0.16);--cat-image:#A78BFA;--cat-image-light:rgba(167,139,250,0.16);--cat-text:#34D399;--cat-text-light:rgba(52,211,153,0.16);--cat-calc:#FBBF24;--cat-calc-light:rgba(251,191,36,0.16);--cat-dev:#22D3EE;--cat-dev-light:rgba(34,211,238,0.16);--card-bg:#141829;--card-border:#262B44;--card-shadow:0 8px 24px rgba(0,0,0,0.35);--card-shadow-hover:0 12px 32px rgba(255,122,66,0.20),0 4px 16px rgba(0,0,0,0.4);--nav-bg:rgba(11,14,26,0.9);--nav-border:#262B44;--input-bg:#141829;--input-border:#262B44;--input-focus:#FF7A42;--input-shadow:0 0 0 3px rgba(255,122,66,0.25);--gradient-hero:linear-gradient(135deg,#0B0E1A 0%,#0A0D17 60%,#060810 100%);--gradient-card:linear-gradient(135deg,#141829 0%,#121627 100%);--shadow-sm:0 1px 2px rgba(0,0,0,0.4);--shadow-md:0 8px 24px rgba(0,0,0,0.35);--shadow-lg:0 10px 40px rgba(0,0,0,0.5);--shadow-xl:0 20px 60px rgba(0,0,0,0.6);--surface:var(--card-bg);--surface-2:var(--bg-secondary);--ink:var(--text);--ink-soft:var(--text-secondary);--border:var(--card-border);--border-color:var(--card-border);--accent-soft:var(--primary-light);--success-soft:var(--success-light);--bg-primary:var(--bg);--surface-1:var(--card-bg);--surface-3:var(--bg-tertiary);--text-md:var(--text-base);--success-dark:#4ADE80;--warning-dark:#FBBF24;--bg-accessible:var(--bg-secondary);--text-accessible:var(--text)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%;text-size-adjust:100%}body{font-family:var(--font-primary);background-color:var(--bg);color:var(--text);line-height:1.6;font-size:var(--text-base);transition:background-color var(--transition-theme),color var(--transition-theme);overflow-x:hidden;min-height:100vh}img,svg,video{display:block;max-width:100%}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-hover)}button{cursor:pointer;font-family:inherit;border:none;background:none}input,textarea,select{font-family:inherit;font-size:inherit}ul,ol{list-style:none}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--space-4)}.section{padding:var(--space-16) 0}.section-sm{padding:var(--space-10) 0}.grid{display:grid;gap:var(--space-6)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.flex-col{display:flex;flex-direction:column}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.w-full{width:100%}h1,h2,h3,h4,h5,h6{font-family:var(--font-primary);font-weight:700;line-height:1.2;color:var(--text);transition:color var(--transition-theme)}h1{font-size:var(--text-5xl);letter-spacing:-0.02em}h2{font-size:var(--text-4xl);letter-spacing:-0.01em}h3{font-size:var(--text-3xl)}h4{font-size:var(--text-2xl)}h5{font-size:var(--text-xl)}h6{font-size:var(--text-lg)}p{color:var(--text-secondary);line-height:1.7}.text-gradient{background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.text-gradient-accent{background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-label{display:inline-flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);font-weight:600;color:var(--primary);background:var(--primary-light);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);margin-bottom:var(--space-4);letter-spacing:0.05em;text-transform:uppercase;transition:background var(--transition-theme),color var(--transition-theme)}.section-title{font-size:var(--text-4xl);font-weight:800;margin-bottom:var(--space-4);letter-spacing:-0.02em}.section-subtitle{font-size:var(--text-lg);color:var(--text-secondary);max-width:600px}.navbar{position:sticky;top:0;z-index:var(--z-sticky);height:var(--nav-height);background:var(--nav-bg);border-bottom:1px solid var(--nav-border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);transition:background var(--transition-theme),border-color var(--transition-theme),box-shadow var(--transition-base)}.navbar.scrolled{box-shadow:var(--shadow-md)}.navbar .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--space-8)}.nav-logo{display:flex;align-items:center;gap:var(--space-3);text-decoration:none;flex-shrink:0}.nav-logo-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.25rem;box-shadow:0 4px 12px rgba(255,90,31,0.3);transition:transform var(--transition-base),box-shadow var(--transition-base)}.nav-logo:hover .nav-logo-icon{transform:scale(1.05) rotate(-3deg);box-shadow:0 6px 20px rgba(255,90,31,0.4)}.nav-logo-name{font-family:var(--font-display)}.nav-logo-text{display:flex;flex-direction:column;line-height:1.1}.nav-logo-name{font-size:var(--text-base);font-weight:800;color:var(--text);transition:color var(--transition-theme)}.nav-logo-tagline{font-size:0.65rem;font-weight:500;color:var(--primary);letter-spacing:0.06em;text-transform:uppercase}.nav-links{display:flex;align-items:center;gap:var(--space-1);flex:1;justify-content:center}.nav-link{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:500;color:var(--text-secondary);transition:all var(--transition-fast);white-space:nowrap;text-decoration:none}.nav-link:hover{color:var(--text);background:var(--bg-secondary)}.nav-link.active{color:var(--primary);background:var(--primary-light);font-weight:600}.nav-link .nav-icon{font-size:1rem}.nav-actions{display:flex;align-items:center;gap:var(--space-3);flex-shrink:0}.nav-hamburger{display:none;flex-direction:column;gap:5px;padding:var(--space-2);border-radius:var(--radius-sm);background:none;border:none;cursor:pointer;transition:background var(--transition-fast);min-width:48px;min-height:48px;align-items:center;justify-content:center}.nav-hamburger:hover{background:var(--bg-secondary)}.nav-hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:all 0.3s ease}.nav-hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-hamburger.open span:nth-child(2){opacity:0}.nav-hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.nav-mobile-drawer{display:none;position:fixed;top:var(--nav-height);left:0;right:0;background:var(--nav-bg);border-bottom:1px solid var(--nav-border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:var(--space-4);flex-direction:column;gap:var(--space-2);z-index:calc(var(--z-sticky) - 1);box-shadow:var(--shadow-lg);transform:translateY(-10px);opacity:0;transition:transform 0.3s ease,opacity 0.3s ease}.nav-mobile-drawer.open{display:flex;transform:translateY(0);opacity:1}.nav-mobile-link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--text-base);font-weight:500;color:var(--text-secondary);text-decoration:none;transition:all var(--transition-fast);min-height:48px}.nav-mobile-link:hover{color:var(--primary);background:var(--primary-light)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:0.75rem 1.5rem;border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:600;font-family:var(--font-primary);border:none;cursor:pointer;transition:all var(--transition-base);white-space:nowrap;text-decoration:none;min-height:48px;letter-spacing:0.01em;position:relative;overflow:hidden}.btn::after{content:'';position:absolute;inset:0;background:rgba(255,255,255,0);transition:background var(--transition-fast)}.btn:hover::after{background:rgba(255,255,255,0.1)}.btn:active{transform:scale(0.98)}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-hover) 100%);color:white;box-shadow:0 4px 14px rgba(255,90,31,0.35)}.btn-primary:hover{box-shadow:0 6px 20px rgba(255,90,31,0.45);transform:translateY(-1px)}.btn-secondary{background:var(--secondary-light);color:var(--text);border:1px solid var(--card-border)}.btn-secondary:hover{background:var(--bg-tertiary);border-color:var(--secondary)}.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}.btn-outline:hover{background:var(--primary-light)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-secondary);color:var(--text)}.btn-accent{background:linear-gradient(135deg,var(--accent) 0%,var(--secondary) 100%);color:white;box-shadow:0 4px 14px rgba(14,165,160,0.35)}.btn-accent:hover{box-shadow:0 6px 20px rgba(14,165,160,0.45);transform:translateY(-1px)}.btn-sm{padding:0.5rem 1rem;font-size:var(--text-xs);min-height:36px;border-radius:var(--radius-sm)}.btn-lg{padding:1rem 2rem;font-size:var(--text-base);min-height:56px;border-radius:var(--radius-lg)}.btn-icon{width:44px;height:44px;padding:0;border-radius:var(--radius-md);font-size:1.1rem}.card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-6);box-shadow:var(--card-shadow);transition:all var(--transition-base)}.card:hover{box-shadow:var(--card-shadow-hover);transform:translateY(-2px);border-color:var(--primary)}.card-header{display:flex;align-items:flex-start;gap:var(--space-4);margin-bottom:var(--space-4)}.card-icon{width:56px;height:56px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0;transition:transform var(--transition-base)}.card:hover .card-icon{transform:scale(1.1) rotate(-5deg)}.card-icon-blue{background:var(--primary-light)}.card-icon-amber{background:var(--accent-light)}.card-icon-green{background:var(--success-light)}.card-icon-purple{background:rgba(14,165,233,0.1)}.card-icon-red{background:var(--error-light)}.card-icon-cyan{background:rgba(14,165,233,0.12)}.card-title{font-size:var(--text-xl);font-weight:700;color:var(--text);margin-bottom:var(--space-1)}.card-desc{font-size:var(--text-sm);color:var(--text-secondary);line-height:1.5}.card-badge{display:inline-flex;align-items:center;gap:4px;font-size:0.7rem;font-weight:700;padding:2px 8px;border-radius:var(--radius-full);letter-spacing:0.06em;text-transform:uppercase}.badge-blue{background:var(--primary-light);color:var(--primary)}.badge-amber{background:var(--accent-light);color:var(--accent-hover)}.badge-green{background:var(--success-light);color:var(--success)}.badge-purple{background:rgba(14,165,233,0.1);color:var(--secondary)}.category-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-6);text-decoration:none;display:flex;flex-direction:column;gap:var(--space-4);box-shadow:var(--card-shadow);transition:all var(--transition-base);position:relative;overflow:hidden;cursor:pointer}.category-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary) 0%,var(--secondary) 100%);transform:scaleX(0);transform-origin:left;transition:transform var(--transition-base)}.category-card:hover::before{transform:scaleX(1)}.category-card:hover{box-shadow:0 16px 32px rgba(0,0,0,0.08),0 4px 8px rgba(0,0,0,0.02);transform:translateY(-8px);border-color:var(--primary)}.category-icon-wrap{width:72px;height:72px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:2rem;transition:transform var(--transition-base)}.category-card:hover .category-icon-wrap{transform:scale(1.15) rotate(-8deg)}.category-card-title{font-size:var(--text-xl);font-weight:800;color:var(--text);margin-bottom:var(--space-1);transition:color var(--transition-fast)}.category-card:hover .category-card-title{color:var(--primary)}.category-card-count{font-size:var(--text-sm);color:var(--text-muted);font-weight:500}.category-card-arrow{margin-top:auto;font-size:1.2rem;color:var(--text-muted);transition:transform var(--transition-base),color var(--transition-base)}.category-card:hover .category-card-arrow{transform:translateX(4px);color:var(--primary)}.tool-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-6);display:flex;flex-direction:column;gap:var(--space-3);box-shadow:var(--card-shadow);transition:all var(--transition-base);flex-shrink:0;width:280px;text-decoration:none;position:relative;overflow:hidden;cursor:pointer}.tool-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary) 0%,var(--accent) 100%);transform:scaleX(0);transform-origin:left;transition:transform var(--transition-base)}.tool-card:hover::after{transform:scaleX(1)}.tool-card:hover{box-shadow:var(--card-shadow-hover);transform:translateY(-3px);border-color:var(--primary)}.tool-card-icon{width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.4rem;transition:transform var(--transition-base)}.tool-card:hover .tool-card-icon{transform:scale(1.1) rotate(-5deg)}.tool-card-title{font-size:var(--text-base);font-weight:700;color:var(--text);line-height:1.3}.tool-card-desc{font-size:var(--text-sm);color:var(--text-secondary);line-height:1.5;flex:1}.tool-card-link{display:inline-flex;align-items:center;gap:var(--space-1);font-size:var(--text-sm);font-weight:600;color:var(--primary);margin-top:var(--space-2);transition:gap var(--transition-fast)}.tool-card:hover .tool-card-link{gap:var(--space-2)}.search-wrap{position:relative;width:100%;max-width:640px;margin:0 auto}.search-input{width:100%;padding:1rem 1.25rem 1rem 3.5rem;background:var(--bg-overlay);border:2px solid rgba(255,255,255,0.4);border-radius:var(--radius-full);font-size:var(--text-base);font-weight:500;color:var(--text);outline:none;transition:all var(--transition-base);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 4px 24px rgba(0,0,0,0.1)}.search-input::placeholder{color:rgba(255,255,255,0.6);font-weight:400}[data-theme="dark"] .search-input::placeholder{color:var(--text-muted)}.search-input:focus{border-color:rgba(255,255,255,0.8);box-shadow:0 0 0 4px rgba(255,255,255,0.2),0 4px 24px rgba(0,0,0,0.15);background:rgba(255,255,255,0.95);color:var(--text)}[data-theme="dark"] .search-input:focus{border-color:var(--primary);background:var(--input-bg);box-shadow:var(--input-shadow);color:var(--text)}.search-icon{position:absolute;left:1.125rem;top:50%;transform:translateY(-50%);font-size:1.1rem;color:rgba(255,255,255,0.7);pointer-events:none;transition:color var(--transition-base);z-index:1}.search-input:focus ~ .search-icon,.search-wrap:focus-within .search-icon{color:var(--primary)}.search-clear{position:absolute;right:1rem;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:var(--text-muted);color:white;display:none;align-items:center;justify-content:center;font-size:0.75rem;border:none;cursor:pointer;transition:background var(--transition-fast)}.search-clear:hover{background:var(--error)}.search-clear.visible{display:flex}.search-suggestions{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);overflow:hidden;z-index:var(--z-dropdown);display:none;max-height:380px;overflow-y:auto}.search-suggestions.visible{display:block;animation:slideDown 0.2s ease}@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.suggestion-group-title{font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-muted);padding:var(--space-3) var(--space-4) var(--space-1)}.suggestion-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);cursor:pointer;transition:background var(--transition-fast);text-decoration:none}.suggestion-item:hover,.suggestion-item.highlighted{background:var(--primary-light)}.suggestion-icon{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0}.suggestion-text{flex:1}.suggestion-title{font-size:var(--text-sm);font-weight:600;color:var(--text)}.suggestion-cat{font-size:var(--text-xs);color:var(--text-muted)}.suggestion-arrow{color:var(--text-muted);font-size:0.75rem;transition:transform var(--transition-fast)}.suggestion-item:hover .suggestion-arrow{transform:translateX(2px);color:var(--primary)}.search-empty{padding:var(--space-8);text-align:center;color:var(--text-muted);font-size:var(--text-sm)}.dark-toggle{width:52px;height:28px;background:var(--bg-tertiary);border-radius:var(--radius-full);border:2px solid var(--card-border);cursor:pointer;position:relative;transition:all var(--transition-theme);flex-shrink:0}.dark-toggle:hover{border-color:var(--primary)}.dark-toggle-thumb{position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:white;box-shadow:0 1px 4px rgba(0,0,0,0.2);transition:transform var(--transition-theme),background var(--transition-theme);display:flex;align-items:center;justify-content:center;font-size:11px}[data-theme="dark"] .dark-toggle{background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);border-color:transparent}[data-theme="dark"] .dark-toggle-thumb{transform:translateX(24px);background:var(--bg-secondary)}.hero{min-height:40vh;display:flex;align-items:center;justify-content:center;text-align:center;background:var(--gradient-hero);position:relative;overflow:hidden;padding:var(--space-16) 0}.hero::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,0.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.06) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:radial-gradient(ellipse at center,black 0%,transparent 72%);mask-image:radial-gradient(ellipse at center,black 0%,transparent 72%)}.hero-particles{position:absolute;inset:0;pointer-events:none;overflow:hidden}.hero-particle{position:absolute;border-radius:50%;background:rgba(255,255,255,0.08);animation:float linear infinite}@keyframes float{0%{transform:translateY(100vh) rotate(0deg);opacity:0}10%{opacity:1}90%{opacity:1}100%{transform:translateY(-100px) rotate(720deg);opacity:0}}.hero-content{position:relative;z-index:2;max-width:800px;padding:var(--space-8) var(--space-10)}.hero-content::before{content:'';position:absolute;inset:0;background:linear-gradient(var(--accent),var(--accent)) top left / 22px 2px no-repeat,linear-gradient(var(--accent),var(--accent)) top left / 2px 22px no-repeat,linear-gradient(var(--accent),var(--accent)) top right / 22px 2px no-repeat,linear-gradient(var(--accent),var(--accent)) top right / 2px 22px no-repeat,linear-gradient(var(--accent),var(--accent)) bottom left / 22px 2px no-repeat,linear-gradient(var(--accent),var(--accent)) bottom left / 2px 22px no-repeat,linear-gradient(var(--accent),var(--accent)) bottom right / 22px 2px no-repeat,linear-gradient(var(--accent),var(--accent)) bottom right / 2px 22px no-repeat;opacity:0.65;pointer-events:none}.hero-badge{display:inline-flex;align-items:center;gap:var(--space-2);background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.3);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:var(--radius-full);padding:6px 16px;font-size:var(--text-sm);font-weight:600;color:white;margin-bottom:var(--space-6);letter-spacing:0.03em}.hero-badge-dot{width:8px;height:8px;background:var(--accent);border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.6;transform:scale(1.3)}}.hero h1{font-family:var(--font-display);font-size:clamp(2.5rem,6vw,4.5rem);font-weight:600;color:white;margin-bottom:var(--space-4);line-height:1.08;letter-spacing:-0.01em;text-shadow:0 2px 20px rgba(0,0,0,0.2)}.hero h1 .highlight{display:block;position:relative;color:var(--accent);font-style:normal;width:fit-content;margin:0 auto}.hero h1 .highlight::after{content:'';position:absolute;left:2px;right:2px;bottom:0.06em;height:0.09em;background:var(--accent);opacity:0.55;border-radius:2px}.hero-subtitle{font-size:clamp(1rem,2.5vw,1.25rem);color:rgba(255,255,255,0.85);margin-bottom:var(--space-8);max-width:560px;margin-left:auto;margin-right:auto;line-height:1.6}.hero-stats{display:flex;align-items:center;justify-content:center;gap:var(--space-8);margin-top:var(--space-10);padding-top:var(--space-8);border-top:1px solid rgba(255,255,255,0.15)}.hero-stat{text-align:center}.hero-stat-num{font-size:var(--text-3xl);font-weight:900;color:white;line-height:1}.hero-stat-label{font-size:var(--text-xs);color:rgba(255,255,255,0.65);font-weight:500;letter-spacing:0.06em;text-transform:uppercase;margin-top:4px}.scroll-row{display:flex;gap:var(--space-5);overflow-x:auto;padding:var(--space-4) var(--space-2);scrollbar-width:none;-ms-overflow-style:none;-webkit-overflow-scrolling:touch;scroll-snap-type:x mandatory}.scroll-row::-webkit-scrollbar{display:none}.scroll-row > *{scroll-snap-align:start;flex-shrink:0}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-label{font-size:var(--text-sm);font-weight:600;color:var(--text)}.form-label .required{color:var(--error);margin-left:2px}.form-input{width:100%;padding:0.75rem 1rem;background:var(--input-bg);border:2px solid var(--input-border);border-radius:var(--radius-md);font-size:var(--text-base);color:var(--text);outline:none;transition:all var(--transition-fast);min-height:48px}.form-input:focus{border-color:var(--input-focus);box-shadow:var(--input-shadow)}.form-input::placeholder{color:var(--text-muted)}.form-select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748b' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}.form-textarea{resize:vertical;min-height:120px}.footer{background:var(--bg-secondary);border-top:1px solid var(--card-border);padding:var(--space-16) 0 var(--space-8);transition:background var(--transition-theme),border-color var(--transition-theme)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--space-12);margin-bottom:var(--space-12)}.footer-brand-desc{font-size:var(--text-sm);color:var(--text-secondary);line-height:1.7;margin:var(--space-4) 0;max-width:280px}.footer-social{display:flex;gap:var(--space-3);margin-top:var(--space-4)}.footer-social-link{width:40px;height:40px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1rem;color:var(--text-secondary);text-decoration:none;transition:all var(--transition-fast)}.footer-social-link:hover{background:var(--primary);border-color:var(--primary);color:white;transform:translateY(-2px)}.footer-heading{font-size:var(--text-sm);font-weight:700;color:var(--text);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:var(--space-5)}.footer-links{display:flex;flex-direction:column;gap:var(--space-3)}.footer-link{font-size:var(--text-sm);color:var(--text-secondary);text-decoration:none;display:flex;align-items:center;gap:var(--space-2);transition:color var(--transition-fast)}.footer-link:hover{color:var(--primary)}.footer-link::before{content:'→';opacity:0;transform:translateX(-4px);transition:all var(--transition-fast);font-size:0.75rem;color:var(--primary)}.footer-link:hover::before{opacity:1;transform:translateX(0)}.footer-bottom{padding-top:var(--space-8);border-top:1px solid var(--card-border);display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.footer-bottom-text{font-size:var(--text-sm);color:var(--text-muted)}.footer-bottom-links{display:flex;gap:var(--space-6)}.footer-bottom-link{font-size:var(--text-sm);color:var(--text-muted);text-decoration:none;transition:color var(--transition-fast)}.footer-bottom-link:hover{color:var(--primary)}.ad-banner{background:var(--bg-tertiary);border:1px dashed var(--card-border);border-radius:var(--radius-md);height:90px;display:flex;align-items:center;justify-content:center;font-size:var(--text-xs);color:var(--text-muted);margin:var(--space-8) 0}.toast-container{position:fixed;bottom:var(--space-6);right:var(--space-6);z-index:var(--z-toast);display:flex;flex-direction:column;gap:var(--space-3)}.toast{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-5);background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);min-width:280px;animation:toastIn 0.3s ease;transition:opacity 0.3s ease,transform 0.3s ease}.toast.hiding{opacity:0;transform:translateX(20px)}@keyframes toastIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}.toast-icon{font-size:1.25rem}.toast-msg{font-size:var(--text-sm);font-weight:500;color:var(--text);flex:1}.toast-close{background:none;border:none;cursor:pointer;font-size:1rem;color:var(--text-muted);padding:0;transition:color var(--transition-fast)}.toast-close:hover{color:var(--text)}.result-card{background:var(--gradient-card);border:1px solid var(--card-border);border-radius:var(--radius-xl);padding:var(--space-6);box-shadow:var(--card-shadow);transition:all var(--transition-base)}.result-title{font-size:var(--text-sm);font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.06em;margin-bottom:var(--space-3)}.result-value{font-size:var(--text-4xl);font-weight:900;color:var(--primary);letter-spacing:-0.02em;line-height:1;margin-bottom:var(--space-2)}.result-actions{display:flex;gap:var(--space-3);margin-top:var(--space-4);flex-wrap:wrap}.page-header{background:var(--gradient-hero);padding:var(--space-12) 0;position:relative;overflow:hidden}.page-header::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%,rgba(255,90,31,0.20) 0%,transparent 60%)}.page-header-content{position:relative;z-index:1}.page-header h1{font-family:var(--font-display);font-size:var(--text-4xl);font-weight:600;color:white;margin-bottom:var(--space-3)}.page-header p{font-size:var(--text-lg);color:rgba(255,255,255,0.8);max-width:600px}.breadcrumb{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:rgba(255,255,255,0.7);margin-bottom:var(--space-4)}.breadcrumb-sep{opacity:0.5}.breadcrumb a{color:rgba(255,255,255,0.7);text-decoration:none;transition:color var(--transition-fast)}.breadcrumb a:hover{color:white}@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes shimmer{from{background-position:-200% 0}to{background-position:200% 0}}.animate-in{animation:fadeInUp 0.5s ease both}.animate-in-delay-1{animation-delay:0.1s}.animate-in-delay-2{animation-delay:0.2s}.animate-in-delay-3{animation-delay:0.3s}.animate-in-delay-4{animation-delay:0.4s}.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-secondary) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-md)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-100%;left:0;background:var(--primary);color:white;padding:var(--space-3) var(--space-6);font-weight:600;z-index:9999;border-radius:0 0 var(--radius-md) 0;text-decoration:none}.skip-link:focus{top:0}.file-upload-area{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-10) var(--space-6);background:var(--bg-secondary);border:2px dashed var(--card-border);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-base);text-align:center;position:relative;overflow:hidden}.file-upload-area::before{content:'';position:absolute;inset:0;background:var(--primary-light);opacity:0;transition:opacity var(--transition-base);z-index:0}.file-upload-area:hover,.file-upload-area.drag-over{border-color:var(--primary);border-style:solid}.file-upload-area:hover::before,.file-upload-area.drag-over::before{opacity:0.5}.file-upload-area > *{position:relative;z-index:1}.file-upload-icon{font-size:3rem;margin-bottom:var(--space-4);filter:drop-shadow(0 4px 6px rgba(0,0,0,0.1));transition:transform var(--transition-base)}.file-upload-area:hover .file-upload-icon,.file-upload-area.drag-over .file-upload-icon{transform:translateY(-4px) scale(1.1)}.file-upload-text{font-size:var(--text-lg);font-weight:600;color:var(--text);margin-bottom:var(--space-2)}.file-upload-hint{font-size:var(--text-sm);color:var(--text-secondary);margin-bottom:var(--space-5)}.file-upload-btn-fake{display:inline-flex;align-items:center;gap:var(--space-2);padding:0.6rem 1.25rem;background:var(--primary);color:white;border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:600;box-shadow:0 4px 14px rgba(255,90,31,0.25);transition:all var(--transition-base)}.file-upload-area:hover .file-upload-btn-fake{box-shadow:0 6px 20px rgba(255,90,31,0.4);transform:translateY(-1px)}.file-upload-area.has-file{border-color:var(--success);background:var(--success-light)}.file-upload-area.has-file::before{display:none}.file-upload-area.has-file .file-upload-icon{display:none}.file-upload-area.has-file .file-upload-text{display:none}.file-upload-area.has-file .file-upload-hint{display:none}.file-upload-area.has-file .file-upload-btn-fake{background:var(--success);box-shadow:0 4px 14px rgba(16,185,129,0.25)}.upload-icon{font-size:3rem;margin-bottom:var(--space-4);filter:drop-shadow(0 4px 6px rgba(0,0,0,0.1));transition:transform var(--transition-base)}.file-upload-area:hover .upload-icon,.file-upload-area.drag-over .upload-icon{transform:translateY(-4px) scale(1.1)}.upload-text{font-size:var(--text-lg);font-weight:600;color:var(--text);margin-bottom:var(--space-2)}.upload-subtext,.dropzone-text{font-size:var(--text-sm);color:var(--text-secondary);margin-bottom:var(--space-5)}.file-upload-area.has-file .upload-icon,.file-upload-area.has-file .upload-text,.file-upload-area.has-file .upload-subtext{display:none}.flex-1{flex:1 1 0%}.calc-output{font-family:var(--font-mono);background:var(--bg-secondary);cursor:default}.btn-success{background-color:var(--success);color:white;border-color:var(--success)}.btn-success:hover{filter:brightness(1.08)}.crop-container{max-width:100%;max-height:480px;overflow:hidden;border-radius:var(--radius-md);border:1px solid var(--card-border);background:var(--bg-secondary)}.crop-container img{max-width:100%;display:block}.preview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:var(--space-4);margin-top:var(--space-4)}@media (max-width:767px){:root{--nav-height:64px}.container{padding:0 var(--space-4)}h1{font-size:var(--text-4xl)}h2{font-size:var(--text-3xl)}h3{font-size:var(--text-2xl)}.section{padding:var(--space-10) 0}.section-sm{padding:var(--space-6) 0}.nav-links{display:none}.nav-hamburger{display:flex}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:var(--space-8)}.footer-bottom{flex-direction:column;align-items:flex-start;gap:var(--space-3)}.hero h1{font-size:clamp(2rem,8vw,3rem)}.hero-stats{gap:var(--space-5);flex-wrap:wrap}.hero-stat-num{font-size:var(--text-2xl)}.toast-container{left:var(--space-4);right:var(--space-4);bottom:var(--space-4)}.toast{min-width:unset}.btn-lg{width:100%;padding:1rem}}@media (min-width:768px) and (max-width:1023px){.container{padding:0 var(--space-6)}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-8)}}@media (min-width:1024px){.container{padding:0 var(--space-8)}.nav-hamburger{display:none}}@media (min-width:1280px){.container{padding:0 var(--space-10)}}.ad-slot{width:100%;background:var(--bg-tertiary);border:1px dashed var(--card-border);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:var(--text-xs);margin:var(--space-6) auto;overflow:hidden}.ad-slot::before{content:'Advertisement Placeholder'}.ad-responsive{min-height:250px}.ad-leaderboard{min-height:90px;max-width:728px}.glass-card{background:var(--card-bg);padding:var(--space-6);border:1px solid var(--card-border);border-radius:var(--radius-xl);box-shadow:var(--card-shadow);transition:box-shadow var(--transition-base),transform var(--transition-base),border-color var(--transition-base)}[data-theme="dark"] .glass-card{background:rgba(255,255,255,0.03);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-color:rgba(255,255,255,0.08)}.premium-shadow{box-shadow:0 1px 2px rgba(18,20,43,0.04),0 16px 40px rgba(18,20,43,0.10)}[data-theme="dark"] .premium-shadow{box-shadow:0 1px 2px rgba(0,0,0,0.3),0 16px 40px rgba(0,0,0,0.45)}.glass-card.premium-shadow:hover{box-shadow:0 1px 2px rgba(18,20,43,0.05),0 20px 48px rgba(255,90,31,0.14);border-color:var(--primary-light)}[data-theme="dark"] .glass-card.premium-shadow:hover{box-shadow:0 1px 2px rgba(0,0,0,0.3),0 20px 48px rgba(255,122,66,0.18)}.animate-in-up{animation:fadeInUp 0.5s cubic-bezier(0.16,1,0.3,1) both}.animate-in-up:nth-of-type(2){animation-delay:0.06s}.animate-in-up:nth-of-type(3){animation-delay:0.12s}.animate-in-up:nth-of-type(4){animation-delay:0.18s}@media (prefers-reduced-motion:reduce){.animate-in-up{animation:none}}.pulse-hover{transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.pulse-hover:hover{transform:translateY(-1px) scale(1.015)}.pulse-hover:active{transform:translateY(0) scale(0.98)}.category-card:hover{box-shadow:0 16px 32px rgba(0,0,0,0.08),0 4px 8px rgba(0,0,0,0.02)}[data-theme="dark"] .category-card:hover{box-shadow:0 16px 32px rgba(0,0,0,0.3),0 4px 8px rgba(0,0,0,0.15)}.category-card-accent{position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius-xl) var(--radius-xl) 0 0;opacity:0;transition:opacity var(--transition-base)}.category-card:hover .category-card-accent{opacity:1}.category-card-desc{font-size:var(--text-xs);color:var(--text-secondary);line-height:1.5;margin-top:2px}.category-card-content{flex:1}.category-card.animate-in{animation:cardReveal 0.45s cubic-bezier(0.16,1,0.3,1) both}@keyframes cardReveal{from{opacity:0;transform:translateY(18px) scale(0.97)}to{opacity:1;transform:translateY(0) scale(1)}}.grid > .category-card:nth-child(1){animation-delay:0.00s}.grid > .category-card:nth-child(2){animation-delay:0.05s}.grid > .category-card:nth-child(3){animation-delay:0.10s}.grid > .category-card:nth-child(4){animation-delay:0.15s}.grid > .category-card:nth-child(5){animation-delay:0.20s}.grid > .category-card:nth-child(6){animation-delay:0.25s}.grid > .category-card:nth-child(7){animation-delay:0.30s}.grid > .category-card:nth-child(8){animation-delay:0.35s}.grid > .category-card:nth-child(9){animation-delay:0.40s}.grid > .category-card:nth-child(10){animation-delay:0.45s}.grid > .category-card:nth-child(11){animation-delay:0.50s}.grid > .category-card:nth-child(12){animation-delay:0.55s}.btn-loading{position:relative;color:transparent !important;pointer-events:none}.btn-loading::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,0.28) 50%,rgba(255,255,255,0) 100% );background-size:200% 100%;animation:btnShimmer 1.2s ease infinite;border-radius:inherit}.btn-loading::after{content:'';position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:inherit;border-radius:inherit}@keyframes btnShimmer{from{background-position:-200% 0}to{background-position:200% 0}}.processing-overlay{position:fixed;inset:0;background:rgba(15,17,23,0.65);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:var(--z-modal);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;opacity:0;pointer-events:none;transition:opacity 0.3s ease}.processing-overlay.visible{opacity:1;pointer-events:all}.processing-spinner{width:64px;height:64px;border-radius:50%;border:4px solid rgba(255,255,255,0.12);border-top-color:var(--primary);border-right-color:var(--secondary);animation:spin 0.8s cubic-bezier(0.68,-0.55,0.27,1.55) infinite}@keyframes spin{to{transform:rotate(360deg)}}.processing-text{font-size:1rem;font-weight:600;color:white;letter-spacing:0.01em}:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:var(--radius-sm)}.cat-section-header{display:flex;align-items:center;gap:0.75rem;margin-bottom:1.5rem;padding-bottom:0.75rem;border-bottom:2px solid var(--card-border)}.cat-section-emoji{font-size:1.75rem;line-height:1}.cat-section-title{font-size:1.35rem;font-weight:800;color:var(--text)}.cat-section-badge{margin-left:auto;font-size:0.72rem;font-weight:700;padding:3px 10px;border-radius:9999px;background:var(--primary-light);color:var(--primary);letter-spacing:0.05em;text-transform:uppercase}.nav-link-pdf{background:linear-gradient(135deg,var(--primary),var(--secondary));color:white !important;border-radius:var(--radius-md);padding:var(--space-2) var(--space-4) !important;font-weight:700 !important;box-shadow:0 3px 10px rgba(29,79,209,0.3);transition:box-shadow 0.2s,transform 0.2s !important}.nav-link-pdf:hover{box-shadow:0 5px 16px rgba(255,90,31,0.45) !important;transform:translateY(-1px);background:var(--bg-secondary) !important;color:var(--primary) !important}.hero-cta-group{gap:1rem}.hero-badge-dot::after{content:'';position:absolute;inset:-3px;border-radius:50%;border:2px solid var(--accent);opacity:0;animation:ringPulse 2s ease infinite}.hero-badge-dot{position:relative}@keyframes ringPulse{0%{opacity:0.8;transform:scale(1)}100%{opacity:0;transform:scale(2.2)}}[data-theme="dark"] .card{background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--card-bg) 100%)}.category-card:focus-within .category-icon-wrap,.category-card:hover .category-icon-wrap{transform:scale(1.1)}.tools-section-divider{height:1px;background:linear-gradient(90deg,transparent 0%,var(--card-border) 20%,var(--primary) 50%,var(--card-border) 80%,transparent 100% );margin:3rem 0 2rem;opacity:0.5}kbd{background:var(--bg-tertiary);border:1px solid var(--card-border);border-bottom-width:2px;padding:1px 7px;border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:0.75rem;color:var(--text-secondary);transition:background var(--transition-theme)}.search-input-body{background:var(--input-bg) !important;border-color:var(--input-border) !important;color:var(--text) !important}.search-input-body::placeholder{color:var(--text-muted) !important}.search-input-body:focus{border-color:var(--input-focus) !important;box-shadow:var(--input-shadow) !important}@media (max-width:767px){.pdf-controls{top:64px}.pdf-controls-inner{flex-direction:column;align-items:stretch}.filter-chips{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}.filter-chip{flex-shrink:0}}.hero-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(255,90,31,0.15) 0%,rgba(14,165,160,0.10) 50%,transparent 100%);filter:blur(80px);pointer-events:none;z-index:1}[data-theme="dark"] .hero-glow{background:radial-gradient(circle,rgba(255,122,66,0.14) 0%,rgba(45,212,203,0.07) 50%,transparent 100%)}.hero-search-wrap{max-width:580px;margin:var(--space-6) auto 0;position:relative;z-index:5}.hero-search-kbd{font-size:var(--text-xs);color:rgba(255,255,255,0.7);margin-top:var(--space-2)}[data-theme="dark"] .hero-search-kbd{color:var(--text-secondary)}.grid-tools{display:grid;gap:var(--space-4);grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}.category-card .card-badge{position:absolute;top:var(--space-4);right:var(--space-4);z-index:10;font-size:0.65rem;padding:3px 8px;border-radius:9999px;backdrop-filter:blur(4px);text-transform:uppercase;font-weight:700;letter-spacing:0.05em}.badge-popular{background:rgba(255,90,31,0.12) !important;color:#D97706 !important;border:1px solid rgba(255,90,31,0.3) !important}[data-theme="dark"] .badge-popular{background:rgba(240,187,92,0.2) !important;color:#F0BB5C !important;border-color:rgba(240,187,92,0.4) !important}.badge-most-used{background:rgba(179,67,46,0.15) !important;color:#96351F !important;border:1px solid rgba(179,67,46,0.3) !important}[data-theme="dark"] .badge-most-used{background:rgba(226,112,92,0.2) !important;color:#E2705C !important;border-color:rgba(226,112,92,0.4) !important}.category-card-cta{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-1);margin-top:auto;font-size:var(--text-xs);font-weight:600;color:var(--primary);background:var(--primary-light);padding:0.4rem 1rem;border-radius:var(--radius-full);align-self:flex-start;transition:all var(--transition-fast);border:1px solid transparent}.category-card:hover .category-card-cta{background:var(--primary);color:white;box-shadow:0 4px 12px rgba(255,90,31,0.25);transform:translateY(-1px)}[data-theme="dark"] .category-card-cta{background:rgba(245,158,11,0.12);color:var(--primary)}[data-theme="dark"] .category-card:hover .category-card-cta{background:var(--primary);color:var(--bg);box-shadow:0 4px 12px rgba(245,158,11,0.3)}.categories-nav-wrapper{display:flex;align-items:center;justify-content:center;gap:var(--space-4);flex-wrap:wrap;margin:var(--space-10) auto 0;padding:var(--space-3) var(--space-4);background:var(--bg-secondary);border:1px solid var(--card-border);border-radius:var(--radius-full);max-width:fit-content;box-shadow:var(--shadow-sm)}.categories-nav-title{font-size:var(--text-xs);font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.05em}.categories-nav-list{display:flex;gap:var(--space-2);flex-wrap:wrap}.category-nav-item{font-size:var(--text-xs);font-weight:600;color:var(--text-secondary);background:var(--card-bg);border:1px solid var(--card-border);padding:0.35rem 0.85rem;border-radius:var(--radius-full);transition:all var(--transition-fast)}.category-nav-item:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary);transform:translateY(-1px)}[data-theme="dark"] .category-nav-item:hover{background:rgba(245,158,11,0.15);color:var(--primary);border-color:var(--primary)}.grid-tools{display:grid;gap:var(--space-5);grid-template-columns:repeat(1,1fr)}@media (min-width:640px){.grid-tools{grid-template-columns:repeat(2,1fr)}}@media (min-width:768px){.grid-tools{grid-template-columns:repeat(3,1fr)}}@media (min-width:1024px){.grid-tools{grid-template-columns:repeat(4,1fr)}}@media (max-width:767px){.grid-tools{grid-template-columns:repeat(2,1fr) !important;gap:var(--space-3) !important}.grid-tools .category-card{flex-direction:column !important;align-items:flex-start !important;padding:var(--space-3) !important;gap:var(--space-2) !important;min-height:180px}.grid-tools .category-icon-wrap{width:44px !important;height:44px !important;font-size:1.25rem !important}.grid-tools .category-card-title{font-size:var(--text-sm) !important}.grid-tools .category-card-desc{font-size:11px !important;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.grid-tools .category-card-cta{padding:0.25rem 0.65rem !important;font-size:10px !important;margin-top:auto !important}}.ad-container{width:100%;max-width:1200px;margin:var(--space-6) auto;min-height:90px;background-color:var(--bg-secondary);border:1px dashed var(--card-border);display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);color:var(--text-muted);font-size:var(--text-sm);text-align:center;overflow:hidden}.ad-container::before{content:'Advertisement';opacity:0.5}.tool-usage-badge{display:inline-flex;align-items:center;gap:0.3rem;font-size:0.68rem;font-weight:600;color:var(--text-muted);background:var(--bg-tertiary);border-radius:var(--radius-full);padding:0.175rem 0.55rem;margin:0 var(--space-4) var(--space-3);width:fit-content;letter-spacing:0.01em;border:1px solid var(--card-border);transition:background var(--transition-theme),color var(--transition-theme);line-height:1.4}.tool-usage-badge svg{flex-shrink:0;opacity:0.65}.category-card:hover .tool-usage-badge{color:var(--primary)}.share-tool-btn{display:inline-flex;align-items:center;gap:0.4rem;background:rgba(255,255,255,0.12);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.22);color:rgba(255,255,255,0.9);border-radius:var(--radius-full);padding:0.4rem 1rem;font-size:0.8rem;font-weight:600;cursor:pointer;transition:all 0.2s;margin-top:0.625rem;align-self:flex-start;font-family:var(--font-primary)}.share-tool-btn:hover{background:rgba(255,255,255,0.22);transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,0.2);color:white}.page-header-content{display:flex;flex-direction:column}.suggested-tools-section{padding:var(--space-12) 0 var(--space-10);background:var(--bg-secondary);border-top:1px solid var(--card-border)}.suggested-tools-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6);gap:var(--space-4)}.suggested-tools-title{font-size:var(--text-2xl);font-weight:700;color:var(--text);margin:0}.suggested-tools-more{font-size:var(--text-sm);font-weight:600;color:var(--primary);white-space:nowrap;transition:color var(--transition-fast)}.suggested-tools-more:hover{color:var(--primary-hover)}.suggested-tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-4)}.suggested-tool-card{display:flex;align-items:center;gap:var(--space-4);background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);text-decoration:none;transition:all var(--transition-base);position:relative;overflow:hidden}.suggested-tool-card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--primary-light),transparent 60%);opacity:0;transition:opacity var(--transition-base)}.suggested-tool-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--card-shadow-hover)}.suggested-tool-card:hover::before{opacity:1}.suggested-tool-icon{font-size:1.6rem;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);border-radius:var(--radius-md);flex-shrink:0;transition:background var(--transition-theme)}.suggested-tool-info{flex:1;min-width:0}.suggested-tool-name{font-size:var(--text-sm);font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.3}.suggested-tool-meta{display:flex;align-items:center;gap:var(--space-2);margin-top:0.2rem}.suggested-tool-cat{font-size:0.68rem;color:var(--primary);font-weight:600;background:var(--primary-light);border-radius:var(--radius-full);padding:0.1rem 0.45rem;white-space:nowrap}.suggested-tool-usage{font-size:0.68rem;color:var(--text-muted);white-space:nowrap}.suggested-tool-arrow{flex-shrink:0;color:var(--text-muted);transition:transform var(--transition-fast),color var(--transition-fast)}.suggested-tool-card:hover .suggested-tool-arrow{transform:translateX(3px);color:var(--primary)}@media (max-width:640px){.suggested-tools-grid{grid-template-columns:1fr 1fr}.suggested-tool-name{font-size:0.78rem}.suggested-tools-title{font-size:var(--text-xl)}}@media (max-width:400px){.suggested-tools-grid{grid-template-columns:1fr}}:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-radius:2px}button:focus-visible,.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--primary);outline-offset:2px}.tool-page-shell{background:linear-gradient(180deg,var(--bg-secondary) 0,var(--bg) 360px),var(--bg)}.tool-hero{padding:var(--space-8) 0 var(--space-10);border-bottom:1px solid var(--card-border)}.tool-hero-grid{display:grid;gap:var(--space-8);align-items:stretch}.tool-eyebrow{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--primary);background:var(--primary-light);border:1px solid rgba(255,90,31,0.2);border-radius:var(--radius-full);padding:0.35rem 0.75rem;font-size:var(--text-sm);font-weight:700;margin-bottom:var(--space-4)}.tool-icon{display:inline-flex;align-items:center;justify-content:center;width:1.6rem;height:1.6rem;border-radius:var(--radius-full);background:var(--card-bg);color:var(--accent);font-size:0.95rem}.tool-hero h1{max-width:820px;margin:0;font-size:clamp(2rem,4vw,3.75rem);letter-spacing:0}.tool-hero-desc{max-width:760px;margin-top:var(--space-4);font-size:var(--text-lg)}.tool-hero-actions{display:flex;gap:var(--space-3);flex-wrap:wrap;margin-top:var(--space-6)}.math-quick-panel{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);box-shadow:var(--card-shadow);padding:var(--space-5)}.math-quick-kicker{color:var(--accent);font-size:var(--text-xs);font-weight:800;letter-spacing:0.05em;text-transform:uppercase;margin-bottom:var(--space-2)}.math-quick-panel h2{font-size:var(--text-xl);margin-bottom:var(--space-4);letter-spacing:0}.math-quick-links{display:grid;gap:var(--space-2)}.math-quick-link{display:flex;justify-content:space-between;align-items:center;gap:var(--space-3);color:var(--text);background:var(--bg-secondary);border:1px solid transparent;border-radius:var(--radius-md);padding:var(--space-3);font-size:var(--text-sm);font-weight:650}.math-quick-link:hover{color:var(--primary);border-color:var(--primary);background:var(--card-bg)}.tool-content-shell{padding-top:var(--space-8);padding-bottom:var(--space-8)}.btech-feature-section{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-secondary) 100%);border-top:1px solid var(--card-border);border-bottom:1px solid var(--card-border)}.btech-feature-head{display:flex;justify-content:space-between;gap:var(--space-6);align-items:end;margin-bottom:var(--space-8)}.btech-icon-wrap{background:var(--accent-light);display:flex;align-items:center;justify-content:center;width:48px;height:48px;font-size:1.35rem}.btech-tool-card{border-color:rgba(14,165,160,0.25)}@media (min-width:900px){.tool-hero-grid{grid-template-columns:minmax(0,1fr) 360px}}@media (max-width:767px){.tool-hero{padding-top:var(--space-6)}.tool-hero h1{font-size:2rem}.tool-hero-desc{font-size:var(--text-base)}.btech-feature-head{align-items:flex-start;flex-direction:column}}.category-icon-wrap,.suggested-tool-icon,.tool-icon{font-family:var(--font-mono);font-weight:800;letter-spacing:0;color:var(--primary);border:1px solid var(--card-border)}.category-card .category-icon-wrap{box-shadow:inset 0 0 0 1px rgba(255,255,255,0.35),var(--shadow-sm)}.tool-marketplace-item[data-category="pdf"] .category-card-accent,.tool-marketplace-item[data-category="pdf"] .category-icon-wrap{background:var(--cat-pdf-light);color:var(--cat-pdf)}.tool-marketplace-item[data-category="images"] .category-card-accent,.tool-marketplace-item[data-category="images"] .category-icon-wrap{background:var(--cat-image-light);color:var(--cat-image)}.tool-marketplace-item[data-category="text-tools"] .category-card-accent,.tool-marketplace-item[data-category="text-tools"] .category-icon-wrap{background:var(--cat-text-light);color:var(--cat-text)}.tool-marketplace-item[data-category="calculators"] .category-card-accent,.tool-marketplace-item[data-category="calculators"] .category-icon-wrap{background:var(--cat-calc-light);color:var(--cat-calc)}.tool-marketplace-item[data-category="math-tools"] .category-card-accent,.tool-marketplace-item[data-category="math-tools"] .category-icon-wrap{background:var(--accent-light);color:var(--accent)}.tool-marketplace-item[data-category="developer-tools"] .category-card-accent,.tool-marketplace-item[data-category="developer-tools"] .category-icon-wrap,.tool-marketplace-item[data-category="security-encryption"] .category-card-accent,.tool-marketplace-item[data-category="security-encryption"] .category-icon-wrap,.tool-marketplace-item[data-category="web-seo"] .category-card-accent,.tool-marketplace-item[data-category="web-seo"] .category-icon-wrap{background:var(--cat-dev-light);color:var(--cat-dev)}.category-card:hover .category-icon-wrap{transform:translateY(-2px) scale(1.06)}.hero::after{content:'';position:absolute;inset:auto max(1rem,5vw) 2rem auto;width:min(240px,35vw);aspect-ratio:1;pointer-events:none;opacity:0.18;background:linear-gradient(var(--accent),var(--accent)) 0 0 / 42% 2px no-repeat,linear-gradient(var(--accent),var(--accent)) 0 0 / 2px 42% no-repeat,linear-gradient(var(--primary),var(--primary)) 100% 100% / 42% 2px no-repeat,linear-gradient(var(--primary),var(--primary)) 100% 100% / 2px 42% no-repeat}.tool-state,.empty-state,.loading-state,.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);min-height:160px;padding:var(--space-8);border:1px dashed var(--card-border);border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--card-bg),var(--bg-secondary));color:var(--text-secondary);text-align:center}.loading-state::before,.tool-state.is-loading::before{content:'';width:32px;height:32px;border-radius:50%;border:3px solid var(--card-border);border-top-color:var(--primary);animation:spin 0.8s linear infinite}.error-state,.tool-state.is-error{border-color:var(--error);background:var(--error-light);color:var(--text)}.tool-export-bar{display:flex;gap:var(--space-2);flex-wrap:wrap;margin-top:var(--space-4)}.tool-export-bar .btn{min-height:38px}.tool-hero-grid.no-sidebar{grid-template-columns:1fr!important}


/* Modern 3-Step UI Stepper & Option Pill Styles */
.ui-step-card {
  background: var(--surface, #ffffff);
  border: 1px solid var(--border, #cbd5e1);
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.ui-step-card:hover {
  border-color: var(--primary, #FF5A1F);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
}
.step-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary, #FF5A1F);
  background: rgba(255, 90, 31, 0.08);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 1rem;
}
.option-pill-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.option-pill {
  padding: 0.45rem 1rem;
  border-radius: 9999px;
  border: 1px solid var(--border, #cbd5e1);
  background: var(--surface-2, #f8fafc);
  color: var(--text, #0f172a);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}
.option-pill:hover {
  background: var(--surface, #ffffff);
  border-color: var(--primary, #FF5A1F);
  color: var(--primary, #FF5A1F);
}
.option-pill.active {
  background: var(--primary, #FF5A1F);
  border-color: var(--primary, #FF5A1F);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(255, 90, 31, 0.3);
}
.micro-tooltip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface-2, #e2e8f0);
  color: var(--text-secondary, #64748b);
  font-size: 0.7rem;
  font-weight: 700;
  margin-left: 0.4rem;
  cursor: help;
  position: relative;
}


/* ==========================================================================
 * ULTRA-ELEGANT & REFINED PREMIUM UI SYSTEM
 * ========================================================================== */

:root {
  --primary-gradient: linear-gradient(135deg, #FF5A1F 0%, #FF7A45 100%);
  --surface-glass: rgba(255, 255, 255, 0.85);
  --border-hairline: rgba(226, 232, 240, 0.8);
  --shadow-ambient: 0 10px 30px -10px rgba(15, 23, 42, 0.05), 0 4px 12px -2px rgba(15, 23, 42, 0.03);
  --shadow-hover-ambient: 0 20px 40px -15px rgba(255, 90, 31, 0.12), 0 8px 20px -4px rgba(15, 23, 42, 0.06);
  --ease-out-cubic: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --surface-glass: rgba(18, 28, 45, 0.85);
  --border-hairline: rgba(255, 255, 255, 0.08);
  --shadow-ambient: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
}

/* Translucent Glassmorphism Header */
.navbar, header.header {
  background: var(--surface-glass) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid var(--border-hairline) !important;
  transition: all 0.3s var(--ease-out-cubic) !important;
}

/* Floating Elegant Step Cards */
.ui-step-card {
  background: var(--surface, #ffffff);
  border: 1px solid var(--border-hairline) !important;
  border-left: 4px solid var(--primary, #FF5A1F) !important;
  border-radius: 16px !important;
  padding: 1.5rem !important;
  margin-bottom: 1.5rem !important;
  box-shadow: var(--shadow-ambient) !important;
  transition: transform 0.25s var(--ease-out-cubic), box-shadow 0.25s var(--ease-out-cubic), border-color 0.25s var(--ease-out-cubic) !important;
}

.ui-step-card:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-hover-ambient) !important;
}

/* Pastel Badge Pills */
.step-badge {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
  font-size: 0.78rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.02em !important;
  color: var(--primary, #FF5A1F) !important;
  background: rgba(255, 90, 31, 0.07) !important;
  border: 1px solid rgba(255, 90, 31, 0.15) !important;
  padding: 0.35rem 0.85rem !important;
  border-radius: 9999px !important;
  margin-bottom: 1.125rem !important;
}

/* Refined Option Pills */
.option-pill {
  padding: 0.5rem 1.125rem !important;
  border-radius: 9999px !important;
  border: 1px solid var(--border-hairline) !important;
  background: var(--surface-2, #f8fafc) !important;
  color: var(--text, #0f172a) !important;
  font-size: 0.85rem !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  transition: all 0.2s var(--ease-out-cubic) !important;
}

.option-pill:hover {
  background: var(--surface, #ffffff) !important;
  border-color: var(--primary, #FF5A1F) !important;
  color: var(--primary, #FF5A1F) !important;
  transform: translateY(-1px) !important;
}

.option-pill.active {
  background: var(--primary-gradient) !important;
  border-color: transparent !important;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(255, 90, 31, 0.28) !important;
}

/* Elegant Sunset Primary Buttons */
.btn-primary, .btn-action {
  background: var(--primary-gradient) !important;
  border: none !important;
  color: #ffffff !important;
  font-weight: 600 !important;
  letter-spacing: -0.01em !important;
  border-radius: 12px !important;
  box-shadow: 0 4px 14px rgba(255, 90, 31, 0.22) !important;
  transition: transform 0.2s var(--ease-out-cubic), box-shadow 0.2s var(--ease-out-cubic) !important;
}

.btn-primary:hover, .btn-action:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 22px rgba(255, 90, 31, 0.35) !important;
}