/* ============================================
   AI军团官网 - Apple风格设计
   ============================================ */

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-bg: #f8f9fc;
    --color-surface: #ffffff;
    --color-surface-2: #f1f3f9;
    --color-border: rgba(0,0,0,0.08);
    --color-text: #1a1d2e;
    --color-text-secondary: rgba(26,29,46,0.6);
    --color-text-tertiary: rgba(26,29,46,0.4);
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --gradient-hero: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99,102,241,0.25) 0%, transparent 60%);
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);
    --max-width: 1200px;
    --nav-height: 56px;
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.6; overflow-x: hidden; }

/* Subtle light theme background */
body::before {
    content: '';
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background:
        radial-gradient(ellipse 60% 50% at 80% 0%, rgba(99,102,241,0.06) 0%, transparent 60%),
        radial-gradient(ellipse 50% 50% at 20% 100%, rgba(139,92,246,0.04) 0%, transparent 50%);
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ---- Navigation ---- */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    height: var(--nav-height);
    background: rgba(255,255,255,0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: background 0.3s;
}
.nav-inner {
    max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; height: 100%; gap: 32px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--color-text); font-weight: 700; font-size: 17px; }
.nav-logo svg { flex-shrink: 0; }
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { color: var(--color-text-secondary); text-decoration: none; font-size: 14px; font-weight: 400; transition: color 0.2s; }
.nav-links a:hover { color: var(--color-text); }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.mobile-menu-btn span { display: block; width: 20px; height: 1.5px; background: var(--color-text); border-radius: 2px; transition: 0.3s; }
.mobile-menu { display: none; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 22px; border-radius: 980px;
    font-size: 14px; font-weight: 500; text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    cursor: pointer; border: none; white-space: nowrap;
}
.btn-primary {
    background: var(--color-text); color: #fff;
}
.btn-primary:hover { background: #2d2f3f; transform: scale(1.02); }
.btn-ghost {
    color: var(--color-text); background: transparent;
    border: 1px solid rgba(0,0,0,0.15);
}
.btn-ghost:hover { border-color: rgba(0,0,0,0.4); background: rgba(0,0,0,0.03); }
.btn-outline {
    background: transparent; color: var(--color-text);
    border: 1px solid rgba(0,0,0,0.15);
}
.btn-outline:hover { border-color: rgba(0,0,0,0.4); background: rgba(0,0,0,0.03); }
.btn-lg { padding: 14px 30px; font-size: 16px; }
.btn-block { width: 100%; justify-content: center; }

/* ---- Hero ---- */
.hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding: calc(var(--nav-height) + 60px) 0 80px;
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-gradient-orb {
    position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}
.hero-orb-1 { width: 800px; height: 800px; top: -30%; left: -10%; background: radial-gradient(circle, rgba(99,102,241,0.4), transparent 70%); }
.hero-orb-2 { width: 600px; height: 600px; top: 10%; right: -15%; background: radial-gradient(circle, rgba(139,92,246,0.3), transparent 70%); animation-delay: -7s; animation-duration: 25s; }
.hero-orb-3 { width: 400px; height: 400px; bottom: -10%; left: 30%; background: radial-gradient(circle, rgba(168,85,247,0.2), transparent 70%); animation-delay: -14s; }

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content { position: relative; z-index: 1; text-align: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px 6px 10px; border-radius: 980px;
    background: rgba(99,102,241,0.08); border: 1px solid rgba(99,102,241,0.15);
    font-size: 13px; color: var(--color-text-secondary); margin-bottom: 32px;
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: #10b981; box-shadow: 0 0 8px #10b981; animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.hero-title {
    font-size: clamp(48px, 8vw, 80px); font-weight: 800; line-height: 1.05;
    letter-spacing: -0.03em; margin-bottom: 24px;
}
.gradient-text {
    background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: clamp(17px, 2.5vw, 21px); color: var(--color-text-secondary);
    line-height: 1.5; margin-bottom: 40px; font-weight: 300;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 24px; }
.hero-downloads { display: flex; align-items: center; justify-content: center; gap: 16px; margin-bottom: 80px; flex-wrap: wrap; }
.downloads-label { font-size: 14px; color: var(--color-text-secondary); margin-right: 8px; }
.download-badge { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 8px; color: var(--color-text-secondary); font-size: 14px; font-weight: 500; text-decoration: none; transition: all 0.2s ease; }
.download-badge:hover { background: var(--color-surface-hover); border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); }
.download-badge svg { opacity: 0.8; }
.download-badge:hover svg { opacity: 1; }

/* ---- Hero Mockup ---- */
.hero-visual { max-width: 1100px; margin: 0 auto; }
.hero-mockup { position: relative; }
.mockup-window {
    background: #0f1117; border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.08); overflow: hidden;
    box-shadow: 0 40px 80px rgba(0,0,0,0.15), 0 0 120px rgba(99,102,241,0.08);
}
.mockup-toolbar {
    display: flex; align-items: center; gap: 8px; padding: 14px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.08); background: rgba(255,255,255,0.02);
}
.toolbar-dot { width: 12px; height: 12px; border-radius: 50%; }
.toolbar-dot.red { background: #ff5f57; } .toolbar-dot.yellow { background: #ffbd2e; } .toolbar-dot.green { background: #28c840; }
.toolbar-title { margin-left: 12px; font-size: 13px; color: var(--color-text-tertiary); }

.mockup-content { display: flex; height: 400px; min-height: 400px; max-height: 400px; }
.mockup-sidebar { width: 240px; border-right: 1px solid rgba(255,255,255,0.08); padding: 16px 12px; flex-shrink: 0; }
.mockup-agent {
    display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px;
    font-size: 13px; color: rgba(255,255,255,0.5); margin-bottom: 4px; transition: 0.2s; cursor: pointer;
}
.mockup-agent:hover { background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.8); }
.mockup-agent.active { background: rgba(99,102,241,0.25); color: #fff; }
.agent-avatar { width: 28px; height: 28px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; }

.mockup-chat { flex: 1; padding: 20px; display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.mockup-chat-messages { height: 220px; display: flex; flex-direction: column; gap: 12px; justify-content: flex-end; }
.mockup-tasks-area { height: 120px; flex-shrink: 0; padding-top: 12px; }
.mockup-msg { display: flex; gap: 10px; align-items: flex-start; }
.mockup-msg.user { justify-content: flex-end; }
.mockup-msg .msg-bubble {
    width: 380px; padding: 12px 16px; border-radius: 16px; font-size: 13px; line-height: 1.5;
}
.mockup-msg.user .msg-bubble { background: var(--color-primary); color: #fff; border-bottom-right-radius: 4px; }
.mockup-msg.agent .msg-bubble { background: rgba(255,255,255,0.1); color: #fff; border-bottom-left-radius: 4px; }
.msg-avatar { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.msg-avatar { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.typing-cursor { animation: blink 1s step-end infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.mockup-tasks { display: flex; flex-direction: column; gap: 8px; padding: 12px 16px; background: rgba(255,255,255,0.06); border-radius: 12px; height: 100%; justify-content: center; }
.task-item { font-size: 12px; color: rgba(255,255,255,0.6); display: flex; align-items: center; gap: 8px; height: 28px; }
.task-icon { font-size: 14px; }
.task-icon.spin { animation: spin 2s linear infinite; display: inline-block; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.mockup-glow {
    position: absolute; inset: -2px; border-radius: 18px; z-index: -1;
    background: var(--gradient-primary); opacity: 0; filter: blur(40px);
    animation: glow-pulse 4s ease-in-out infinite;
}
@keyframes glow-pulse { 0%, 100% { opacity: 0.05; } 50% { opacity: 0.12; } }

/* ---- Brands ---- */
.brands { padding: 100px 0; background: linear-gradient(180deg, var(--color-bg) 0%, #fff 50%, var(--color-bg) 100%); overflow: hidden; }
.brands-label { text-align: center; font-size: 16px; font-weight: 600; color: var(--color-text-tertiary); margin-bottom: 48px; letter-spacing: 0.1em; text-transform: uppercase; }
.brands-marquee { position: relative; width: 100%; overflow: hidden; }
.brands-marquee::before,
.brands-marquee::after { content: ''; position: absolute; top: 0; width: 150px; height: 100%; z-index: 2; pointer-events: none; }
.brands-marquee::before { left: 0; background: linear-gradient(to right, var(--color-bg), transparent); }
.brands-marquee::after { right: 0; background: linear-gradient(to left, var(--color-bg), transparent); }
.brands-track { display: flex; gap: 80px; width: max-content; animation: marquee 30s linear infinite; }
.brand-marquee-item { display: flex; align-items: center; gap: 16px; padding: 16px 32px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.04); }
.brand-marquee-item svg { color: var(--color-primary); }
.brand-marquee-item span { font-size: 18px; font-weight: 600; color: var(--color-text); white-space: nowrap; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ---- Section Common ---- */
.section-header { text-align: center; margin-bottom: 64px; }
.section-label {
    display: inline-block; font-size: 20px; font-weight: 800; color: var(--color-primary);
    text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 20px;
}
.section-title { font-size: clamp(48px, 7vw, 72px); font-weight: 800; line-height: 1.02; letter-spacing: -0.03em; margin-bottom: 24px; }
.section-desc { font-size: 22px; color: var(--color-text-secondary); max-width: 680px; margin: 0 auto; font-weight: 400; line-height: 1.6; }

/* ---- Features ---- */
.features { padding: 120px 0; background: linear-gradient(180deg, #fff 0%, var(--color-bg) 100%); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
    padding: 36px; border-radius: 20px; background: var(--color-surface);
    border: 1px solid var(--color-border); transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}
.feature-card:hover { border-color: rgba(99,102,241,0.2); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(99,102,241,0.1); }
.feature-icon {
    width: 56px; height: 56px; border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
}
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 15px; color: var(--color-text-secondary); line-height: 1.6; font-weight: 300; }

/* ---- How It Works ---- */
.how-it-works { padding: 120px 0; background: linear-gradient(180deg, var(--color-bg) 0%, #fff 50%, var(--color-bg) 100%); }
.steps { display: flex; align-items: flex-start; gap: 0; justify-content: center; }
.step { text-align: center; max-width: 280px; flex-shrink: 0; }
.step-number { font-size: 13px; font-weight: 700; color: var(--color-primary); margin-bottom: 20px; letter-spacing: 0.05em; }
.step-visual { margin-bottom: 24px; }
.step-icon-wrap {
    width: 80px; height: 80px; border-radius: 24px; display: flex; align-items: center; justify-content: center;
    background: rgba(99,102,241,0.08); border: 1px solid rgba(99,102,241,0.15);
    margin: 0 auto;
}
.step h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.step p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.6; font-weight: 300; }
.step-connector {
    width: 80px; height: 1px; background: var(--color-border);
    margin-top: 60px; flex-shrink: 0;
}

/* ---- Scenarios ---- */
.scenarios { padding: 120px 0; background: linear-gradient(180deg, var(--color-bg) 0%, #fff 100%); }
.scenarios-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.scenario-card {
    padding: 40px; border-radius: 20px; background: var(--color-surface);
    border: 1px solid var(--color-border); transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.04); position: relative; overflow: hidden;
}
.scenario-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: var(--gradient-primary); opacity: 0; transition: opacity 0.3s;
}
.scenario-card:hover { border-color: rgba(99,102,241,0.2); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(99,102,241,0.1); }
.scenario-card:hover::before { opacity: 1; }
.scenario-icon-wrap {
    width: 72px; height: 72px; border-radius: 20px;
    background: var(--gradient-primary); display: flex; align-items: center; justify-content: center;
    margin-bottom: 24px; transition: all 0.4s var(--transition-smooth);
    box-shadow: 0 8px 24px rgba(99,102,241,0.25);
}
.scenario-card:hover .scenario-icon-wrap { transform: scale(1.1) rotate(-5deg); box-shadow: 0 12px 32px rgba(99,102,241,0.35); }
.scenario-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.scenario-card p { font-size: 15px; color: var(--color-text-secondary); line-height: 1.6; font-weight: 300; }

/* ---- Pricing ---- */
.pricing { padding: 120px 0; background: linear-gradient(180deg, #fff 0%, var(--color-bg) 100%); }
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pricing-card {
    padding: 36px; border-radius: 20px; background: var(--color-bg);
    border: 1px solid var(--color-border); position: relative; transition: all 0.4s;
    display: flex; flex-direction: column;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}
.pricing-card:hover { border-color: rgba(99,102,241,0.2); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(99,102,241,0.1); }
.pricing-card.featured {
    border-color: var(--color-primary); background: rgba(99,102,241,0.04);
    box-shadow: 0 0 40px rgba(99,102,241,0.08);
}
.pricing-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--gradient-primary); color: #fff; font-size: 12px; font-weight: 600;
    padding: 4px 16px; border-radius: 980px; white-space: nowrap;
}
.pricing-name { font-size: 20px; font-weight: 700; margin-bottom: 16px; }
.pricing-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 8px; }
.price-currency { font-size: 20px; font-weight: 600; color: var(--color-text); }
.price-amount { font-size: 44px; font-weight: 800; letter-spacing: -0.03em; }
.price-period { font-size: 15px; color: var(--color-text-secondary); }
.pricing-desc { font-size: 14px; color: var(--color-text-secondary); margin-bottom: 28px; font-weight: 300; }
.pricing-features { list-style: none; margin-bottom: 28px; flex: 1; }
.pricing-features li { display: flex; align-items: center; gap: 10px; padding: 8px 0; font-size: 14px; color: var(--color-text-secondary); }
.pricing-features li svg { flex-shrink: 0; }

/* ---- CTA ---- */
.cta { padding: 120px 0; text-align: center; background: linear-gradient(180deg, var(--color-bg) 0%, #fff 100%); }
.cta-content h2 { font-size: clamp(36px, 5vw, 52px); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 16px; }
.cta-content p { font-size: 18px; color: var(--color-text-secondary); margin-bottom: 40px; font-weight: 300; }
.cta-actions { display: flex; justify-content: center; }

/* ---- Footer ---- */
.footer { padding: 60px 0 40px; border-top: 1px solid var(--color-border); background: var(--color-surface); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: 14px; color: var(--color-text-tertiary); margin-top: 12px; line-height: 1.5; }
.footer-links h4 { font-size: 13px; font-weight: 600; color: var(--color-text); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-links a { display: block; font-size: 14px; color: var(--color-text-tertiary); text-decoration: none; padding: 4px 0; transition: color 0.2s; }
.footer-links a:hover { color: var(--color-text-secondary); }
.footer-bottom { border-top: 1px solid var(--color-border); padding-top: 24px; text-align: center; }
.footer-bottom p { font-size: 13px; color: var(--color-text-tertiary); text-align: center; width: 100%; }
.download-link { display: inline-flex; align-items: center; gap: 4px; }
.download-link svg { opacity: 0.7; }
.download-link:hover svg { opacity: 1; }

/* ---- Scroll Animations ---- */
.fade-in {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.1, 0.25, 1), transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .step-connector { width: 40px; }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions { display: none; }
    .mobile-menu-btn { display: flex; }
    .mobile-menu {
        display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0;
        background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
        padding: 24px; flex-direction: column; gap: 20px; z-index: 999;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a { font-size: 20px; color: var(--color-text-secondary); text-decoration: none; padding: 12px 0; border-bottom: 1px solid var(--color-border); }
    .mobile-menu-btn span { background: var(--color-text); }
    .mobile-menu-actions { margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }

    .hero { padding-top: calc(var(--nav-height) + 40px); min-height: auto; padding-bottom: 60px; }
    .hero-title { font-size: 40px; }
    .hero-subtitle { font-size: 16px; }
    .hero-actions { flex-direction: column; align-items: center; margin-bottom: 40px; }
    .hero-mockup { display: none; }

    .features-grid { grid-template-columns: 1fr; }
    .steps { flex-direction: column; align-items: center; gap: 24px; }
    .step-connector { width: 1px; height: 40px; margin-top: 0; }
    .scenarios-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ---- Scroll Progress Bar ---- */
.scroll-progress {
    position: fixed; top: 0; left: 0; height: 2px; z-index: 10000;
    background: var(--gradient-primary); width: 0%;
    transition: width 0.1s linear;
}

/* ---- Back to Top ---- */
.back-to-top {
    position: fixed; bottom: 32px; right: 32px; z-index: 999;
    width: 48px; height: 48px; border-radius: 50%;
    background: var(--color-surface); border: 1px solid var(--color-border);
    color: var(--color-text-secondary); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transform: translateY(20px); pointer-events: none;
    transition: all 0.3s var(--transition-smooth);
    backdrop-filter: blur(10px);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: all; }
.back-to-top:hover {
    background: var(--color-surface-2); color: var(--color-text);
    border-color: rgba(255,255,255,0.2); transform: translateY(-2px);
}

/* ---- Enhanced Micro-interactions ---- */
/* Button shine effect */
.btn-primary {
    position: relative; overflow: hidden;
}
.btn-primary::after {
    content: ''; position: absolute; top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
    opacity: 0; transition: opacity 0.4s;
    pointer-events: none;
}
.btn-primary:hover::after { opacity: 1; }

/* Feature card icon animation */
.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(-3deg);
    transition: transform 0.4s var(--transition-smooth);
}

/* Scenario card icon bounce */
.scenario-card:hover .scenario-icon {
    animation: icon-bounce 0.5s var(--transition-smooth);
}
@keyframes icon-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

/* Pricing card glow on hover */
.pricing-card.featured::before {
    content: ''; position: absolute; inset: -1px; border-radius: 20px;
    background: var(--gradient-primary); opacity: 0; z-index: -1;
    filter: blur(20px); transition: opacity 0.4s;
}
.pricing-card.featured:hover::before { opacity: 0.3; }

/* Smooth link underline */
.nav-links a { position: relative; }
.nav-links a::after {
    content: ''; position: absolute; bottom: -4px; left: 0;
    width: 0; height: 1.5px; background: var(--color-primary);
    transition: width 0.3s var(--transition-smooth);
}
.nav-links a:hover::after { width: 100%; }

/* ---- Page Load Animation ---- */
@keyframes page-load {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
body { animation: page-load 0.6s var(--transition-smooth) forwards; }

/* ---- Loading Skeleton ---- */
.skeleton {
    background: linear-gradient(90deg, var(--color-surface) 25%, var(--color-surface-2) 50%, var(--color-surface) 75%);
    background-size: 200% 100%; animation: skeleton-loading 1.5s infinite;
    border-radius: 8px;
}
@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ---- Focus States for Accessibility ---- */
a:focus-visible, button:focus-visible {
    outline: 2px solid var(--color-primary); outline-offset: 2px;
}

/* ---- Selection Color ---- */
::selection {
    background: rgba(99,102,241,0.3); color: var(--color-text);
}

/* ---- Scrollbar Styling ---- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-surface-2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-border); }

/* Favicon SVG placeholder */
favicon { display: none; }

    position: absolute;
    top: 80px;
    right: 20px;
    background: #10b981;
    color: #fff;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
    z-index: 100;
}