:root{--primary: #1d4ed8;--primary-hover: #1e40af;--primary-light: rgba(29, 78, 216, .14);--primary-ultra-light: rgba(29, 78, 216, .07);--secondary: #0ea5e9;--accent: #14b8a6;--accent-light: rgba(20, 184, 166, .14);--success: #059669;--success-light: rgba(5, 150, 105, .12);--warning: #d97706;--warning-light: rgba(217, 119, 6, .12);--error: #dc2626;--error-light: rgba(220, 38, 38, .12);--text: #0f172a;--text-secondary: #334155;--text-tertiary: #64748b;--bg: #eef3ff;--bg-secondary: #dbe7ff;--card: rgba(255, 255, 255, .82);--card-hover: #ffffff;--border: rgba(148, 163, 184, .3);--border-hover: rgba(71, 85, 105, .35);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);--shadow-sm: 0 6px 16px -10px rgba(15, 23, 42, .3);--shadow: 0 16px 34px -20px rgba(15, 23, 42, .38);--shadow-lg: 0 30px 60px -30px rgba(15, 23, 42, .45);--shadow-xl: 0 40px 90px -38px rgba(15, 23, 42, .5);--shadow-glow: 0 0 24px rgba(14, 165, 233, .28);--gradient-start: #1d4ed8;--gradient-mid: #0f5cc5;--gradient-end: #0ea5e9;--radius-sm: .5rem;--radius: .8rem;--radius-lg: 1.1rem;--radius-xl: 1.45rem;--radius-full: 9999px;--transition: .22s cubic-bezier(.4, 0, .2, 1);--transition-spring: .38s cubic-bezier(.34, 1.56, .64, 1);--header-text: #f8fbff;--modal-overlay: rgba(2, 6, 23, .58);--ring: 0 0 0 3px rgba(14, 165, 233, .24);--glass: rgba(255, 255, 255, .72);--glass-border: rgba(255, 255, 255, .35)}[data-theme=dark]{--primary: #60a5fa;--primary-hover: #3b82f6;--primary-light: rgba(96, 165, 250, .14);--primary-ultra-light: rgba(96, 165, 250, .08);--secondary: #22d3ee;--accent: #2dd4bf;--accent-light: rgba(45, 212, 191, .12);--success: #34d399;--success-light: rgba(52, 211, 153, .12);--warning: #f59e0b;--warning-light: rgba(245, 158, 11, .12);--error: #f87171;--error-light: rgba(248, 113, 113, .14);--text: #e2e8f0;--text-secondary: #cbd5e1;--text-tertiary: #94a3b8;--bg: #060b19;--bg-secondary: #101a33;--card: rgba(14, 24, 48, .84);--card-hover: #17284a;--border: rgba(148, 163, 184, .24);--border-hover: rgba(148, 163, 184, .42);--gradient-start: #2563eb;--gradient-mid: #0f3f9b;--gradient-end: #0891b2;--header-text: #f8fbff;--modal-overlay: rgba(2, 6, 23, .8);--ring: 0 0 0 3px rgba(96, 165, 250, .24);--shadow-glow: 0 0 22px rgba(34, 211, 238, .2);--glass: rgba(12, 20, 40, .72);--glass-border: rgba(148, 163, 184, .26)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:Space Grotesk,Manrope,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6;min-height:100vh;transition:background .35s ease,color var(--transition);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::selection{background:color-mix(in srgb,var(--primary) 52%,transparent);color:#fff}::-moz-selection{background:color-mix(in srgb,var(--primary) 52%,transparent);color:#fff}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;background:radial-gradient(circle at 12% 14%,rgba(56,189,248,.15),transparent 28%),radial-gradient(circle at 88% 6%,rgba(29,78,216,.2),transparent 30%),radial-gradient(circle at 48% 96%,rgba(20,184,166,.13),transparent 30%),radial-gradient(var(--border) 1px,transparent 1px);background-size:auto,auto,auto,24px 24px;opacity:.7;pointer-events:none}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.skip-link{position:absolute;left:-999px;top:0;background:#111827;color:#fff;padding:.75rem 1rem;z-index:9999;border-radius:var(--radius);font-weight:600}.skip-link:focus{left:1rem;top:1rem;box-shadow:0 0 0 4px #fff6}*:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}.hidden{display:none!important}.app-container{max-width:1024px;margin:0 auto;padding:1.75rem 1.25rem 2rem;min-height:100vh;display:flex;flex-direction:column;gap:1.2rem}.main-content{display:flex;flex-direction:column;gap:1rem}.main-content-tool{gap:0;padding-top:.3rem}#main-content,#temp-mail-section,#use-cases-section,#faq-section,#site-footer{scroll-margin-top:7.25rem}.site-header-shell{position:sticky;top:.75rem;z-index:115}.site-header{position:relative;display:grid;grid-template-columns:auto 1fr;align-items:center;padding:.6rem 1rem;border-radius:calc(var(--radius-xl) + .12rem);background:linear-gradient(135deg,#eef3fff2,#dbe7ffeb),radial-gradient(circle at top right,rgba(29,78,216,.12),transparent 34%);box-shadow:0 26px 60px -36px #0f172a26;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);overflow:hidden}[data-theme=dark] .site-header{border-color:#94a3b82e;background:linear-gradient(135deg,#080e1cfa,#020817eb),radial-gradient(circle at top right,rgba(34,211,238,.16),transparent 34%);box-shadow:0 26px 60px -36px #020617eb}.site-header:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,rgba(29,78,216,.08),transparent 22%,transparent 78%,rgba(29,78,216,.06)),linear-gradient(180deg,rgba(15,23,42,.04),transparent 42%);pointer-events:none}[data-theme=dark] .site-header:before{background:linear-gradient(90deg,rgba(34,211,238,.14),transparent 22%,transparent 78%,rgba(34,211,238,.12)),linear-gradient(180deg,rgba(255,255,255,.06),transparent 42%)}.site-brand{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;margin-left:.35rem;color:#0f172a;text-decoration:none;min-width:fit-content}[data-theme=dark] .site-brand{color:#f8fbff}.site-brand-logo{width:3.5rem;height:3.5rem;object-fit:contain;display:block;filter:drop-shadow(0 16px 30px rgba(15,23,42,.4))}.site-nav-rail{position:relative;z-index:1;min-width:0}.site-nav{display:flex;align-items:center;justify-content:center;gap:.45rem;flex-wrap:wrap}.site-nav-item{display:inline-flex;align-items:center;gap:.45rem;padding:.72rem .95rem;border-radius:var(--radius-full);border:1px solid transparent;color:#0f172ab8;text-decoration:none;font-size:.85rem;font-weight:600;transition:background-color var(--transition),border-color var(--transition),color var(--transition),transform var(--transition)}[data-theme=dark] .site-nav-item{color:#e2e8f0c7}.site-nav-item i{font-size:.76rem}.site-nav-item:hover{color:#0f172a;background:#1d4ed814;border-color:#1d4ed824;transform:translateY(-1px)}[data-theme=dark] .site-nav-item:hover{color:#f8fbff;background:#94a3b81f;border-color:#94a3b829}.site-nav-item.is-soon{color:#0f172a80}[data-theme=dark] .site-nav-item.is-soon{color:#e2e8f0a3}.site-nav-item.is-active{color:#fff;background:linear-gradient(135deg,#1d4ed8,#0ea5e9);box-shadow:0 18px 32px -24px #1d4ed880}[data-theme=dark] .site-nav-item.is-active{color:#03131a;background:linear-gradient(135deg,#22d3ee,#2dd4bf);box-shadow:0 18px 32px -24px #22d3eee6}.site-nav-item.is-active:hover{color:#fff;border-color:transparent}[data-theme=dark] .site-nav-item.is-active:hover{color:#03131a;border-color:transparent}.top-controls{position:fixed;top:1rem;right:1rem;display:flex;align-items:center;gap:.6rem;z-index:140}.theme-switch{position:static;display:flex;align-items:center}.theme-switch-btn{--toggle-surface: color-mix(in srgb, var(--card) 86%, #ffffff 14%);position:relative;width:2.28rem;height:2.28rem;padding:0;border-radius:var(--radius-full);border:1px solid var(--glass-border);background:linear-gradient(145deg,var(--toggle-surface),color-mix(in srgb,var(--bg) 78%,#ffffff 22%));box-shadow:var(--shadow);color:inherit;display:inline-flex;align-items:center;justify-content:center;overflow:visible;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:none}.theme-switch-btn:after{display:none}.theme-switch-btn:hover,.theme-switch-btn:active{transform:none;box-shadow:var(--shadow)}.theme-switch-btn:focus-visible{outline:2px solid color-mix(in srgb,var(--primary) 65%,transparent);outline-offset:2px}.theme-switch-glyph{position:relative;width:1.6rem;height:1.6rem;display:inline-flex;align-items:center;justify-content:center;transition:none}.theme-switch-icon{display:block;width:100%;height:100%;overflow:visible;transition:none}.theme-switch-btn.is-dark .theme-switch-glyph{transform:rotate(-8deg) scale(1.02)}.theme-switch-btn.is-light .theme-switch-glyph{transform:rotate(0)}[data-theme=dark] .theme-switch-btn{--toggle-surface: color-mix(in srgb, var(--card) 80%, #0f172a 20%);border-color:color-mix(in srgb,var(--border) 75%,#ffffff 25%)}.theme-switch-btn:hover .theme-switch-icon-sun,.theme-switch-btn:hover .theme-switch-icon-moon{transform:none}.theme-switch-btn.is-light .theme-switch-icon-sun{color:#fbbf24;--theme-icon-cutout: color-mix(in srgb, var(--toggle-surface) 84%, #ffffff 16%);filter:drop-shadow(0 0 8px rgba(36,49,66,.08))}.theme-switch-btn.is-light .sun-burst{fill:currentColor}.theme-switch-btn.is-light .sun-ring-cutout{fill:var(--theme-icon-cutout)}.theme-switch-btn.is-light .sun-core{fill:currentColor}.theme-switch-btn.is-dark .theme-switch-icon-moon{color:#e2e8f0;filter:drop-shadow(0 0 8px rgba(226,232,240,.14))}.theme-switch-btn.is-dark .moon-body,.theme-switch-btn.is-dark .moon-star{fill:currentColor}.theme-switch-btn.is-dark .moon-star-large{opacity:.92}.theme-switch-btn.is-dark .moon-star-small{opacity:.72}.language-switch{position:relative}.lang-trigger{display:inline-flex;align-items:center;gap:.45rem;padding:.56rem .7rem;border-radius:var(--radius-full);border:1px solid var(--glass-border);background:var(--glass);color:var(--text);box-shadow:var(--shadow);font-size:.75rem;font-weight:700;transition:none}.lang-trigger:hover,.lang-trigger:active{transform:none;box-shadow:var(--shadow)}.lang-trigger:after{display:none}.lang-trigger i:first-child{color:var(--primary)}.lang-trigger i:last-child{font-size:.625rem;color:var(--text-tertiary)}.language-menu{position:absolute;top:calc(100% + .45rem);right:0;min-width:170px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:.35rem;display:flex;flex-direction:column;gap:.25rem;z-index:120;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.language-option{justify-content:flex-start;background:transparent;color:var(--text-secondary);border:1px solid transparent;border-radius:var(--radius-sm);padding:.52rem .62rem;font-size:.78rem;box-shadow:none}.language-option:hover{background:var(--primary-ultra-light);color:var(--text);border-color:var(--border);transform:none}.language-option.active{background:var(--primary-light);color:var(--primary);border-color:color-mix(in srgb,var(--primary) 40%,transparent)}.language-option:after{display:none}header{text-align:center;padding:2.6rem 2rem 2.2rem;background:linear-gradient(-45deg,var(--gradient-start),var(--gradient-mid),var(--gradient-end),var(--gradient-start));background-size:300% 300%;animation:none;border-radius:var(--radius-xl);box-shadow:0 26px 70px -34px #020617a6;position:relative;overflow:hidden;color:var(--header-text);border:1px solid rgba(255,255,255,.22)}@keyframes gradientShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}header:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle at center,#ffe7bf2e,#ffe7bf00 72%),radial-gradient(circle at 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0,156px 54px;background-size:360px 220px,260px 160px;opacity:.58}.header-content{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:.75rem;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.logo-title{display:flex;align-items:center;gap:0}@keyframes iconFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}.logo-title h1{font-size:3rem;letter-spacing:-.02em;text-shadow:0 2px 4px rgba(0,0,0,.15);font-weight:700;background:linear-gradient(to right,#34d399,#f59e0b,#f87171,#764ada);background-size:200% auto;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:shine 3s linear infinite;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.header-subtitle{font-size:.9rem;opacity:.85;font-weight:400;max-width:800px;line-height:2}.header-badges{display:flex;gap:.5rem;margin-top:.25rem;flex-wrap:wrap;justify-content:center}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .75rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;background:#ffffff26;border:1px solid rgba(255,255,255,.2);transition:background-color var(--transition),transform var(--transition)}.badge:hover{background:#ffffff40;transform:translateY(-1px)}.badge i{font-size:.625rem}.system-status{display:flex;align-items:center;gap:.375rem}.status-led{width:8px;height:8px;border-radius:50%;transition:background var(--transition);background:var(--text-tertiary)}.status-led.online{background:#34d399;box-shadow:0 0 6px #34d39980}.status-led.offline{background:#f87171;box-shadow:0 0 6px #f8717180}.status-led.loading{background:#fbbf24;box-shadow:0 0 6px #fbbf2480;animation:statusPulse 1s ease infinite}@keyframes statusPulse{0%,to{opacity:1}50%{opacity:.4}}#status-text{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.card{background:var(--card);padding:1.5rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;animation:cardSlideIn .5s ease-out;position:relative}.card:before{content:"";position:absolute;top:0;left:1.5rem;right:1.5rem;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:0 0 var(--radius-sm) var(--radius-sm);opacity:0;transition:opacity var(--transition)}.card:hover{box-shadow:var(--shadow),var(--shadow-glow);border-color:var(--border-hover);transform:translateY(-2px)}.card:hover:before{opacity:1}@keyframes cardSlideIn{0%{opacity:0;transform:translateY(1rem)}to{opacity:1;transform:translateY(0)}}.faq-section{padding-top:1.35rem;background:radial-gradient(circle at 12% 8%,color-mix(in srgb,var(--secondary) 20%,transparent),transparent 38%),radial-gradient(circle at 88% 22%,color-mix(in srgb,var(--primary) 18%,transparent),transparent 36%),color-mix(in srgb,var(--card) 95%,transparent);-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.faq-section.card:hover{box-shadow:var(--shadow-sm);border-color:var(--border);transform:none}.faq-section.card:hover:before{opacity:0}.inbox-card:hover{box-shadow:var(--shadow-sm);border-color:var(--border);transform:none}.inbox-card:hover:before{opacity:0}.mailbox-parent-card:hover{box-shadow:var(--shadow-sm);border-color:var(--border);transform:none}.mailbox-parent-card:before{display:none}.mailbox-parent-card:hover:before{opacity:0}.faq-header{text-align:center;margin-bottom:1.1rem}.faq-title-row{display:inline-flex;align-items:center;gap:.6rem}.faq-heading-icon{width:1.9rem;height:1.9rem;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#fff;background:linear-gradient(140deg,var(--primary),var(--secondary));box-shadow:0 8px 18px -10px color-mix(in srgb,var(--primary) 55%,transparent)}.faq-header h2{font-size:1.5rem;font-weight:800;letter-spacing:-.02em;color:var(--text);user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.faq-header p{margin-top:.2rem;color:var(--text-tertiary);font-size:.9rem}.faq-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.9rem}.faq-box{--faq-accent: var(--primary);border:1px solid color-mix(in srgb,var(--border) 80%,transparent);border-radius:var(--radius);padding:1rem 1rem 1.05rem;min-height:190px;aspect-ratio:1 / 1;display:flex;flex-direction:column;gap:.62rem;transition:none;box-shadow:0 8px 24px -20px #0206178c}.faq-box-top{display:flex;align-items:center;justify-content:space-between}.faq-box-icon{width:2.38rem;height:2.38rem;border-radius:.92rem;display:inline-flex;align-items:center;justify-content:center;font-size:1.02rem;color:var(--faq-accent);background:linear-gradient(180deg,color-mix(in srgb,var(--faq-accent) 16%,transparent),color-mix(in srgb,var(--faq-accent) 8%,transparent));border:1px solid color-mix(in srgb,var(--faq-accent) 28%,transparent);box-shadow:0 16px 28px -24px color-mix(in srgb,var(--faq-accent) 75%,transparent)}.faq-box-index{font-size:.72rem;font-weight:700;letter-spacing:.08em;color:color-mix(in srgb,var(--faq-accent) 82%,#ffffff 18%)}.faq-box h3{font-size:.97rem;line-height:1.35;color:var(--text)}.faq-box p{font-size:.83rem;color:var(--text-secondary);line-height:1.6}.faq-box:hover{border-color:color-mix(in srgb,var(--border) 80%,transparent);box-shadow:0 8px 24px -20px #0206178c;transform:none}.use-cases-section{padding-top:1.35rem;background:radial-gradient(circle at 10% 10%,color-mix(in srgb,var(--primary) 20%,transparent),transparent 34%),radial-gradient(circle at 92% 16%,color-mix(in srgb,var(--accent) 18%,transparent),transparent 36%),linear-gradient(180deg,color-mix(in srgb,var(--card) 94%,transparent),color-mix(in srgb,var(--bg-secondary) 52%,var(--card) 48%));-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.use-cases-section.card:hover{box-shadow:var(--shadow-sm);border-color:var(--border);transform:none}.use-cases-section.card:hover:before{opacity:0}.use-cases-header{text-align:center;width:min(100%,920px);margin:0 auto 1.25rem}.use-cases-header h2{font-size:1.5rem;font-weight:800;letter-spacing:-.02em;color:var(--text);user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.use-cases-header p{max-width:780px;margin:.35rem auto 0;color:var(--text-tertiary);font-size:.9rem;line-height:1.72}.use-cases-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:1rem}.use-case-card{--use-case-accent: var(--primary);grid-column:span 2;position:relative;overflow:hidden;min-height:188px;padding:1.18rem 1.18rem 1.22rem 1.3rem;border-radius:calc(var(--radius) + .08rem);border:1px solid color-mix(in srgb,var(--border) 80%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--card) 94%,transparent),color-mix(in srgb,var(--bg-secondary) 34%,var(--card) 66%));display:flex;flex-direction:column;gap:.74rem;box-shadow:0 18px 42px -30px #020617c2;transition:none}.use-case-card-wide{grid-column:span 3;min-height:204px}.use-case-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 0% 0%,color-mix(in srgb,var(--use-case-accent) 16%,transparent),transparent 28%),radial-gradient(circle at 100% 100%,color-mix(in srgb,var(--use-case-accent) 8%,transparent),transparent 28%);pointer-events:none}.use-case-card:after{content:"";position:absolute;top:1rem;bottom:1rem;left:0;width:3px;border-radius:0 var(--radius-full) var(--radius-full) 0;background:linear-gradient(180deg,var(--use-case-accent),color-mix(in srgb,var(--use-case-accent) 68%,#ffffff 32%));opacity:.96}.use-case-card-head{position:relative;z-index:1;text-align:center}.use-case-card-meta{display:inline-flex;align-items:center;gap:.72rem}.use-case-eyebrow{display:inline-flex;align-items:center;gap:.42rem;padding:0;border:none;background:transparent;color:color-mix(in srgb,var(--use-case-accent) 82%,#ffffff 18%);font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.use-case-eyebrow:before{content:"";width:.42rem;height:.42rem;border-radius:50%;background:var(--use-case-accent);box-shadow:0 0 0 .18rem color-mix(in srgb,var(--use-case-accent) 16%,transparent)}.use-case-icon,.use-case-card h3,.use-case-card p{position:relative;z-index:1;text-align:center}.use-case-icon{width:2.38rem;height:2.38rem;border-radius:.92rem;display:inline-flex;align-items:center;justify-content:center;font-size:1.08rem;color:var(--use-case-accent);background:linear-gradient(180deg,color-mix(in srgb,var(--use-case-accent) 16%,transparent),color-mix(in srgb,var(--use-case-accent) 8%,transparent));border:1px solid color-mix(in srgb,var(--use-case-accent) 28%,transparent);box-shadow:0 16px 28px -24px color-mix(in srgb,var(--use-case-accent) 75%,transparent)}.use-case-card h3{font-size:.97rem;line-height:1.4;color:var(--text);text-align:center}.use-case-card-wide h3{font-size:1.18rem;max-width:100%}.use-case-card p{font-size:.83rem;color:var(--text-secondary);line-height:1.72}.use-case-card:hover{transform:none;border-color:color-mix(in srgb,var(--border) 80%,transparent);box-shadow:0 18px 42px -30px #020617c2}.email-controls{display:flex;flex-direction:column;gap:1.05rem}.email-input-group{position:relative;display:flex;gap:.5rem;align-items:stretch}.input-icon{position:absolute;left:.875rem;top:50%;transform:translateY(-50%);color:var(--text-tertiary);pointer-events:none;font-size:.875rem;transition:color var(--transition)}.email-input-group:focus-within .input-icon{color:var(--primary)}.email-input-group input{flex:1;padding:.85rem 1rem .85rem 2.65rem;border:2px solid var(--border);border-radius:calc(var(--radius) + .2rem);font-size:.9375rem;font-weight:600;color:var(--text);background:color-mix(in srgb,var(--bg) 88%,transparent);transition:all var(--transition);font-family:JetBrains Mono,Fira Code,monospace,sans-serif;letter-spacing:.01em}.email-input-group input:focus{outline:none;border-color:var(--primary);box-shadow:var(--ring);background:var(--card)}.email-input-group .icon-button{border-radius:var(--radius)}.email-input-group .icon-button.copied{background:var(--success-light);border-color:var(--success);color:var(--success);animation:copyPop .3s var(--transition-spring)}@keyframes copyPop{0%{transform:scale(1)}50%{transform:scale(1.15)}to{transform:scale(1)}}.controls-row{display:flex;gap:.75rem;flex-wrap:wrap;align-items:stretch}.button-group{display:flex;gap:.5rem;flex:1;min-width:min(100%,420px)}button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;border:none;border-radius:var(--radius);font-size:.8125rem;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--primary),var(--secondary));cursor:pointer;transition:all var(--transition);white-space:nowrap;position:relative;overflow:hidden;-webkit-tap-highlight-color:transparent}button .ripple{position:absolute;border-radius:50%;background:#ffffff59;transform:scale(0);animation:rippleAnim .6s ease-out;pointer-events:none}@keyframes rippleAnim{to{transform:scale(4);opacity:0}}button:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:#fff0;transition:background var(--transition)}button:hover:after{background:#ffffff1a}button:hover{transform:translateY(-1px);box-shadow:var(--shadow)}button:active{transform:translateY(0) scale(.98);box-shadow:none;transition-duration:.1s}.primary-button{background:linear-gradient(135deg,var(--primary),var(--secondary));flex:1;min-width:0}.primary-button:hover{filter:saturate(1.1) brightness(1.02)}.email-controls .primary-button{min-height:2.72rem;border-radius:calc(var(--radius) + .18rem);font-size:.84rem;font-weight:700}.icon-button{padding:.625rem;min-width:2.5rem;background:color-mix(in srgb,var(--card) 72%,var(--bg));color:var(--text);border:1px solid var(--border)}.icon-button:hover{background:var(--bg-secondary);border-color:var(--border-hover);color:var(--text)}.icon-button:after{display:none}.danger-button{background:var(--error)}.danger-button:hover{background:#dc2626}.ghost-button{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.ghost-button:hover{background:var(--bg-secondary);color:var(--text);border-color:var(--border-hover)}.language-switch .lang-trigger{border:1px solid var(--glass-border);background:var(--glass);color:var(--text);box-shadow:var(--shadow)}.language-switch .lang-trigger:hover{transform:none;box-shadow:var(--shadow)}.language-switch .lang-trigger:after{display:none}.language-switch .language-option{justify-content:flex-start;background:transparent;color:var(--text-secondary);border:1px solid transparent;box-shadow:none}.language-switch .language-option:hover{background:var(--primary-ultra-light);color:var(--text);border-color:var(--border);transform:none}.language-switch .language-option.active{background:var(--primary-light);color:var(--primary);border-color:color-mix(in srgb,var(--primary) 40%,transparent)}.language-switch .language-option:after{display:none}.site-header .theme-switch-btn{--toggle-surface: rgba(238, 243, 255, .92);background:linear-gradient(145deg,#e2e8f0cc,#dbe7ffe0);border-color:#94a3b82e;box-shadow:none}[data-theme=dark] .site-header .theme-switch-btn{--toggle-surface: rgba(11, 18, 34, .96);background:linear-gradient(145deg,#0f172af2,#090e1af5);border-color:#94a3b838;box-shadow:none}.site-header .theme-switch-btn:hover,.site-header .theme-switch-btn:active{box-shadow:none}.site-header .lang-trigger{border-color:#94a3b82e;background:#e8effce0;color:#0f172a;box-shadow:none}[data-theme=dark] .site-header .lang-trigger{border-color:#94a3b838;background:#0c1426eb;color:#e2e8f0;box-shadow:none}.site-header .lang-trigger:hover,.site-header .lang-trigger:active{box-shadow:none}.site-header .lang-trigger i:first-child{color:#1d4ed8}[data-theme=dark] .site-header .lang-trigger i:first-child{color:#22d3ee}.site-header .lang-trigger i:last-child{color:#0f172a7a}[data-theme=dark] .site-header .lang-trigger i:last-child{color:#e2e8f094}.site-header .language-menu{background:#eef3fff2;border-color:#94a3b829;box-shadow:0 24px 45px -30px #0f172a26}[data-theme=dark] .site-header .language-menu{background:#080d1cf5;border-color:#94a3b833;box-shadow:0 24px 45px -30px #020617eb}.site-header .language-option{color:#0f172ab8}[data-theme=dark] .site-header .language-option{color:#e2e8f0c2}.site-header .language-option:hover{background:#1d4ed814;color:#0f172a;border-color:#1d4ed824}[data-theme=dark] .site-header .language-option:hover{background:#22d3ee1a;color:#f8fbff;border-color:#22d3ee2e}.site-header .language-option.active{background:#22d3ee29;color:#67e8f9;border-color:#22d3ee47}.auto-refresh{display:flex;align-items:center;gap:.75rem;min-height:2.72rem;padding:.45rem .75rem;background:color-mix(in srgb,var(--bg) 92%,transparent);border-radius:calc(var(--radius) + .18rem);border:1px solid var(--border);font-size:.8125rem}.checkbox-label{display:flex;align-items:center;gap:.375rem;cursor:pointer;color:var(--text-secondary);font-weight:500}.checkbox-label i{font-size:.8125rem}.checkbox-label input[type=checkbox]{width:1rem;height:1rem;accent-color:var(--primary);cursor:pointer}.select-input{padding:.375rem .5rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);color:var(--text);font-size:.75rem;font-weight:500}.countdown-text{font-size:.75rem;color:var(--text-secondary);font-variant-numeric:tabular-nums;min-width:2rem;font-weight:700;transition:color var(--transition)}.countdown-text-safe{color:var(--text-secondary)}.countdown-text-warning{color:var(--warning)}.countdown-text-danger{color:var(--error)}.refresh-button i,.refresh-button .fa-rotate{display:inline-block;animation:refreshSpin 1.8s linear infinite;will-change:transform}@keyframes refreshSpin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.countdown-bar-container{position:relative;height:6px;margin-top:.9rem;border-radius:var(--radius-full);background:color-mix(in srgb,var(--border) 75%,transparent);overflow:hidden;opacity:0;transition:opacity var(--transition)}.countdown-bar-container.active{opacity:1}.countdown-bar{height:100%;background:linear-gradient(90deg,var(--secondary),var(--accent));border-radius:inherit;transition:width 1s linear;width:100%;box-shadow:0 0 10px color-mix(in srgb,var(--secondary) 45%,transparent)}.countdown-bar-container.warning .countdown-bar{background:linear-gradient(90deg,#fbbf24,#f59e0b);box-shadow:0 0 10px #f59e0b73}.countdown-bar-container.danger .countdown-bar{background:linear-gradient(90deg,#fb7185,#ef4444);box-shadow:0 0 10px #ef44447a}.address-builder{display:flex;flex-direction:column;gap:.48rem;margin-top:.25rem;padding:.72rem .78rem;border:1px solid color-mix(in srgb,var(--border) 82%,transparent);border-radius:calc(var(--radius) + .22rem);background:linear-gradient(135deg,color-mix(in srgb,var(--card) 94%,transparent),color-mix(in srgb,var(--bg) 85%,transparent));transition:none}.address-builder:focus-within{border-color:color-mix(in srgb,var(--border) 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translateY(0)}}.confirmation-icon-wrap{width:4.5rem;height:4.5rem;background:#dc26261a;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.75rem;color:var(--error)}@keyframes confirmationIconPop{0%{transform:scale(0)}to{transform:scale(1)}}.confirmation-title{font-size:1.3rem;font-weight:700;color:var(--text);margin:0;letter-spacing:-.01em;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.confirmation-message{font-size:1rem;color:var(--text-secondary);margin:0;padding:0 1.5rem;line-height:1.6;max-width:340px}.confirmation-actions{display:flex;gap:.75rem;width:100%;padding:0 1.5rem 2rem;justify-content:center;flex-wrap:wrap}.confirmation-btn{flex:1;min-width:120px;padding:.7rem 1.25rem;border-radius:var(--radius-lg);font-weight:600;font-size:.95rem;border:none;cursor:pointer;transition:all 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a:hover{color:var(--accent);text-decoration-color:color-mix(in srgb,var(--accent) 55%,transparent)}.mail-pretty-footer{padding:.8rem 1.15rem 1.05rem;color:var(--text-tertiary);font-size:.8rem;line-height:1.6}.attachments{padding:1rem 1.5rem;border-top:1px solid var(--border);background:var(--bg)}.attachments h3{font-size:.8125rem;font-weight:600;margin-bottom:.5rem;color:var(--text-secondary)}.attachment-list{display:flex;flex-wrap:wrap;gap:.5rem}.attachment-link{display:inline-flex;align-items:center;gap:.375rem;padding:.375rem .75rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);text-decoration:none;font-size:.75rem;font-weight:500;transition:all var(--transition)}.attachment-link:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary);transform:translateY(-1px)}.attachment-link 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kbd{display:inline-flex;align-items:center;justify-content:center;padding:.125rem .375rem;background:var(--bg);border:1px solid var(--border);border-radius:3px;font-size:.625rem;font-weight:700;font-family:JetBrains Mono,monospace;box-shadow:0 1px 0 var(--border)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 1rem;gap:.75rem;color:var(--text-tertiary)}.empty-state-icon{font-size:3rem;opacity:.25;animation:emptyFloat 3s ease-in-out infinite}@keyframes emptyFloat{0%,to{transform:translateY(0) rotate(0)}25%{transform:translateY(-6px) rotate(-3deg)}75%{transform:translateY(2px) rotate(2deg)}}.empty-state h4{font-size:.9375rem;font-weight:600;color:var(--text-secondary)}.empty-state p{font-size:.8125rem;text-align:center;max-width:280px;line-height:1.6}.empty-state-hint{margin-top:.5rem;font-size:.75rem;color:var(--text-tertiary);display:flex;align-items:center;gap:.375rem}.empty-state-hint kbd{display:inline-flex;padding:.125rem 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