/* =====================================================================
   EIAIX — AICamScan landing styles
   Copia adaptada de ComparePricesWithAI.Web.Client/wwwroot/css/styles.css
   con el bloque adicional .cam-grid / .cam-tile para mostrar la grilla
   de cámaras en el mockup del teléfono.
   ===================================================================== */

:root {
    --primary: #1b6ec2;
    --primary-dark: #145a9e;
    --primary-light: #e8f1fb;
    --accent: #00c896;
    --accent-dark: #00a67a;
    --text: #1a1a2e;
    --text-light: #555;
    --text-muted: #888;
    --bg: #ffffff;
    --bg-alt: #f7f9fc;
    --bg-dark: #0f1b2d;
    --bg-dark-card: #162338;
    --border: #e2e8f0;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s ease;
    --max-width: 1200px;
    --gradient: linear-gradient(135deg, #1b6ec2 0%, #00c896 100%);
    --gradient-dark: linear-gradient(135deg, #0f1b2d 0%, #1a3a5c 100%);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

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

h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: 1.3rem; }

.section-title { text-align: center; margin-bottom: 16px; }
.section-subtitle { text-align: center; color: var(--text-light); font-size: 1.1rem; max-width: 600px; margin: 0 auto 48px; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: 50px;
    font-size: 1rem; font-weight: 600;
    cursor: pointer; border: none;
    transition: all var(--transition);
    text-align: center; justify-content: center;
}
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 4px 16px rgba(27,110,194,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(27,110,194,0.4); }
.btn-secondary { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-secondary:hover { background: var(--primary); color: #fff; }

/* ===== Navigation ===== */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 16px 0; transition: all var(--transition); background: transparent; }
.navbar.scrolled { background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); box-shadow: 0 2px 20px rgba(0,0,0,0.06); padding: 10px 0; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; }

.logo { display: flex; align-items: center; gap: 10px; font-size: 1.5rem; font-weight: 800; letter-spacing: -0.5px; }
.logo-icon { width: 40px; height: 40px; background: var(--gradient); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.2rem; font-weight: 900; }
.logo-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo-text-block { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.15; }
.logo-byline { font-size: 0.6rem; font-weight: 500; color: var(--text-muted); letter-spacing: 0.5px; -webkit-text-fill-color: var(--text-muted); }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-weight: 500; font-size: 0.95rem; color: var(--text); position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--primary); transition: width var(--transition); }
.nav-links a:hover::after { width: 100%; }

.nav-lang { display: flex; align-items: center; gap: 4px; background: var(--bg-alt); border-radius: 50px; padding: 4px; margin-left: 8px; }
.nav-lang button { padding: 6px 12px; border: none; background: transparent; border-radius: 50px; font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all var(--transition); color: var(--text-muted); }
.nav-lang button.active { background: var(--primary); color: #fff; }

.btn-signin { padding: 8px 20px; background: var(--gradient); color: #fff !important; border-radius: 8px; font-weight: 600; font-size: 0.9rem; transition: transform var(--transition), box-shadow var(--transition); white-space: nowrap; }
.btn-signin:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(27, 110, 194, 0.4); }
.mobile-signin { display: none; }
.signin-icon { display: none; }

.mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--text); transition: all var(--transition); border-radius: 2px; }

/* ===== Hero ===== */
.hero { min-height: 100vh; display: flex; align-items: center; padding-top: 80px; background: linear-gradient(170deg, #f0f7ff 0%, #ffffff 40%, #f0fff8 100%); position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 60%; height: 120%; background: radial-gradient(ellipse, rgba(27,110,194,0.06) 0%, transparent 70%); pointer-events: none; }
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-content { z-index: 1; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-light); color: var(--primary); padding: 8px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; margin-bottom: 24px; }
.hero h1 { margin-bottom: 20px; color: var(--text); }
.hero h1 span { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-description { font-size: 1.15rem; color: var(--text-light); margin-bottom: 32px; max-width: 500px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 48px; }
.hero-stat { text-align: center; }
.hero-stat-number { font-size: 1.8rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 2px; }

/* Phone mockup */
.hero-visual { display: flex; justify-content: center; align-items: center; position: relative; z-index: 1; }
.phone-mockup { width: 280px; height: 570px; background: #1a1a2e; border-radius: 40px; padding: 12px; box-shadow: var(--shadow-lg), 0 0 0 2px rgba(255,255,255,0.1); position: relative; transform: perspective(800px) rotateY(-8deg) rotateX(2deg); transition: transform 0.5s ease; }
.phone-mockup:hover { transform: perspective(800px) rotateY(0deg) rotateX(0deg); }
.phone-screen { width: 100%; height: 100%; background: #fff; border-radius: 30px; overflow: hidden; display: flex; flex-direction: column; }
.phone-notch { width: 120px; height: 28px; background: #1a1a2e; border-radius: 0 0 16px 16px; margin: 0 auto; position: relative; z-index: 2; }
.phone-app-header { background: var(--gradient); padding: 12px 16px; display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 700; font-size: 0.9rem; margin-top: -8px; padding-top: 16px; }
.phone-app-content { padding: 12px; flex: 1; font-size: 0.7rem; }
.phone-nav { display: flex; justify-content: space-around; padding: 10px 0; border-top: 1px solid var(--border); font-size: 1.1rem; }
.phone-nav-item { display: flex; flex-direction: column; align-items: center; font-size: 0.55rem; color: var(--text-muted); gap: 2px; }
.phone-nav-item.active { color: var(--primary); }
.phone-nav-item span:first-child { font-size: 1rem; }

/* ===== Camera grid (AICamScan mockup) ===== */
.cam-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 6px;
    height: 100%;
    min-height: 280px;
}
.cam-tile {
    border-radius: 8px;
    background: linear-gradient(135deg, #2a3a55 0%, #0f1b2d 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 6px;
    position: relative;
    overflow: hidden;
    font-size: 0.55rem;
    font-weight: 600;
}
.cam-tile::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0 6px, transparent 6px 12px),
        radial-gradient(circle at 30% 30%, rgba(0,200,150,0.18), transparent 60%);
}
.cam-tile.cam-live { box-shadow: inset 0 0 0 1px rgba(0,200,150,0.45); }
.cam-tile.cam-alert { box-shadow: inset 0 0 0 1px rgba(231,76,60,0.55); }
.cam-tile.cam-alert::before {
    background-image:
        repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0 6px, transparent 6px 12px),
        radial-gradient(circle at 60% 40%, rgba(231,76,60,0.28), transparent 60%);
}
.cam-dot {
    position: absolute;
    top: 6px; right: 6px;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #00c896;
    box-shadow: 0 0 0 2px rgba(0,200,150,0.25);
    animation: cam-pulse 1.6s ease-in-out infinite;
}
.cam-tile.cam-alert .cam-dot {
    background: #e74c3c;
    box-shadow: 0 0 0 2px rgba(231,76,60,0.25);
}
@keyframes cam-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.6; }
}
.cam-label { position: relative; z-index: 1; }

/* Floating elements */
.floating-card { position: absolute; background: #fff; border-radius: var(--radius); padding: 14px 18px; box-shadow: var(--shadow-lg); font-size: 0.85rem; animation: float 3s ease-in-out infinite; z-index: 2; }
.floating-card.card-1 { top: 15%; right: -10%; animation-delay: 0s; }
.floating-card.card-2 { bottom: 20%; left: -5%; animation-delay: 1s; }
.floating-card .card-icon { font-size: 1.3rem; margin-bottom: 4px; }
.floating-card .card-value { font-weight: 800; color: var(--accent); font-size: 1.1rem; }
.floating-card .card-label { color: var(--text-muted); font-size: 0.75rem; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ===== Features ===== */
.features { padding: 100px 0; background: var(--bg); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature-card { padding: 36px 28px; border-radius: var(--radius-lg); background: var(--bg-alt); border: 1px solid var(--border); transition: all var(--transition); position: relative; overflow: hidden; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient); opacity: 0; transition: opacity var(--transition); }
.feature-card:hover::before { opacity: 1; }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 20px; background: var(--primary-light); }
.feature-card h3 { margin-bottom: 12px; }
.feature-card p { color: var(--text-light); font-size: 0.95rem; line-height: 1.6; }

/* ===== How It Works ===== */
.how-it-works { padding: 100px 0; background: var(--bg-alt); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-top: 48px; }
.step { text-align: center; position: relative; }
.step::after { content: ''; position: absolute; top: 35px; right: -16px; width: 32px; height: 2px; background: var(--border); }
.step:last-child::after { display: none; }
.step-number { width: 70px; height: 70px; border-radius: 50%; background: var(--gradient); color: #fff; font-size: 1.5rem; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; box-shadow: 0 4px 16px rgba(27,110,194,0.25); }
.step h3 { margin-bottom: 8px; }
.step p { color: var(--text-light); font-size: 0.9rem; }

/* ===== Pricing ===== */
.pricing { padding: 100px 0; background: var(--bg); }
.pricing-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; max-width: 800px; margin: 0 auto; }
.pricing-card { border-radius: var(--radius-lg); padding: 40px 32px; border: 2px solid var(--border); transition: all var(--transition); position: relative; }
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-card.featured { border-color: var(--primary); background: linear-gradient(180deg, var(--primary-light) 0%, #fff 30%); }
.pricing-card.featured::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--gradient); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.pricing-badge { display: inline-block; background: var(--gradient); color: #fff; padding: 4px 14px; border-radius: 50px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 16px; }
.pricing-card h3 { font-size: 1.4rem; margin-bottom: 8px; }
.pricing-price { font-size: 2.8rem; font-weight: 800; margin: 16px 0; }
.pricing-price span { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
.pricing-features { margin: 24px 0 32px; }
.pricing-features li { display: flex; align-items: center; gap: 10px; padding: 8px 0; font-size: 0.95rem; color: var(--text-light); }
.pricing-features li::before { content: '✓'; color: var(--accent); font-weight: 700; font-size: 1.1rem; flex-shrink: 0; }
.pricing-features li.disabled { opacity: 0.4; text-decoration: line-through; }
.pricing-features li.disabled::before { content: '✕'; color: var(--text-muted); }
.pricing-card .btn { width: 100%; }

/* ===== CTA / Download ===== */
.cta { padding: 100px 0; background: var(--gradient-dark); color: #fff; text-align: center; position: relative; overflow: hidden; }
.cta::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: radial-gradient(ellipse at center, rgba(0,200,150,0.1) 0%, transparent 70%); pointer-events: none; }
.cta h2 { color: #fff; margin-bottom: 16px; }
.cta p { color: rgba(255,255,255,0.75); font-size: 1.1rem; max-width: 500px; margin: 0 auto 36px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.store-badge { display: inline-flex; align-items: center; justify-content: center; gap: 12px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius); padding: 12px 20px; color: #fff; transition: all var(--transition); cursor: pointer; min-width: 185px; }
.store-badge:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); }
.store-badge-icon { font-size: 2rem; display: flex; align-items: center; justify-content: center; min-width: 2rem; }
.store-badge-text { text-align: left; }
.store-badge-label { font-size: 0.7rem; opacity: 0.8; text-transform: uppercase; letter-spacing: 0.5px; }
.store-badge-store { font-size: 1.15rem; font-weight: 700; }

/* ===== Footer ===== */
.footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; background: none; -webkit-text-fill-color: #fff; }
.footer-brand .logo-byline { color: rgba(255,255,255,0.5); -webkit-text-fill-color: rgba(255,255,255,0.5); }
.footer-brand p { font-size: 0.9rem; line-height: 1.8; max-width: 300px; }
.footer-col h4 { color: #fff; margin-bottom: 20px; font-size: 1rem; }
.footer-col a { display: block; padding: 6px 0; font-size: 0.9rem; color: rgba(255,255,255,0.6); transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; }
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: rgba(255,255,255,0.5); }
.footer-bottom-links a:hover { color: var(--accent); }
.footer-version { color: rgba(255,255,255,0.35); font-size: 0.75rem; font-family: 'Inter', monospace; }

/* ===== Mobile Menu ===== */
.mobile-menu { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); z-index: 1001; flex-direction: column; align-items: center; justify-content: center; gap: 32px; }
.mobile-menu.active { display: flex; }
.mobile-menu a { font-size: 1.3rem; font-weight: 600; }
.mobile-menu-close { display: none; }

/* ===== Animations ===== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero .container { grid-template-columns: 1fr; gap: 24px; text-align: center; }
    .hero-content { order: 1; }
    .hero-visual { order: 0; }
    .hero-description { margin: 0 auto 32px; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .phone-mockup { transform: none; width: 240px; height: 490px; }
    .floating-card { display: none; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .step::after { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-toggle { display: flex; }
    .features-grid { grid-template-columns: 1fr; }
    .pricing-cards { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .hero-stats { gap: 24px; margin-bottom: 20px; }
    .mobile-signin { display: inline-flex; align-items: center; justify-content: center; margin-left: auto; margin-right: 8px; padding: 8px; min-width: 38px; min-height: 38px; }
    .mobile-signin .signin-text { display: none; }
    .mobile-signin .signin-icon { display: inline; }
    .features, .how-it-works, .pricing, .cta { padding: 36px 0; }
    .steps { margin-top: 24px; }
    .section-subtitle { margin-bottom: 16px; }
    .fade-in { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .features, .how-it-works, .pricing, .cta { padding: 20px 0; }
    .section-subtitle { font-size: 0.95rem; margin-bottom: 12px; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .store-badge { width: 100%; max-width: 280px; }
}

/* ===== Under Construction Modal (opcional) ===== */
.wip-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(0,0,0,0.55); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; padding: 1rem; }
.wip-card { background: #fff; border-radius: var(--radius-lg); padding: 2.5rem 2rem; max-width: 420px; width: 100%; text-align: center; box-shadow: var(--shadow-lg); animation: wipSlideIn 0.4s ease; }
@keyframes wipSlideIn { from { opacity: 0; transform: translateY(30px) scale(0.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
.wip-icon { font-size: 3.5rem; margin-bottom: 1rem; }
.wip-title { font-size: 1.4rem; font-weight: 800; margin-bottom: 0.75rem; color: var(--text); }
.wip-message { font-size: 0.95rem; color: var(--text-light); line-height: 1.6; margin-bottom: 1.5rem; }
.wip-btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 36px; border-radius: 50px; border: none; background: var(--gradient); color: #fff; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all var(--transition); box-shadow: 0 4px 16px rgba(27,110,194,0.3); }
.wip-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(27,110,194,0.4); }

/* ===== PWA banners ===== */
.pwa-banner { position: fixed; bottom: 0; left: 0; right: 0; z-index: 9999; display: flex; align-items: center; gap: 12px; padding: 14px 20px; background: var(--bg-dark); color: #fff; font-family: 'Inter', sans-serif; font-size: 0.9rem; box-shadow: 0 -4px 24px rgba(0,0,0,0.15); animation: pwaSlideUp 0.4s ease; }
@keyframes pwaSlideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
.pwa-banner-icon { font-size: 1.5rem; flex-shrink: 0; }
.pwa-banner-text { flex: 1; }
.pwa-banner-btn { padding: 8px 20px; border: none; border-radius: 50px; background: var(--gradient); color: #fff; font-weight: 600; font-size: 0.85rem; cursor: pointer; white-space: nowrap; transition: all var(--transition); }
.pwa-banner-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(27,110,194,0.4); }
.pwa-banner-dismiss { background: none; border: none; color: rgba(255,255,255,0.6); font-size: 1.5rem; cursor: pointer; padding: 0 4px; line-height: 1; transition: color var(--transition); }
.pwa-banner-dismiss:hover { color: #fff; }

.pwa-update-banner { position: fixed; top: 0; left: 0; right: 0; z-index: 10000; display: flex; align-items: center; gap: 12px; padding: 14px 20px; background: linear-gradient(135deg, #1b6ec2 0%, #00c896 100%); color: #fff; font-family: 'Inter', sans-serif; font-size: 0.9rem; box-shadow: 0 4px 24px rgba(0,0,0,0.15); animation: pwaSlideDown 0.4s ease; }
@keyframes pwaSlideDown { from { transform: translateY(-100%); } to { transform: translateY(0); } }
.pwa-update-icon { font-size: 1.3rem; flex-shrink: 0; }
.pwa-update-text { flex: 1; font-weight: 500; }