:root {
    --bg-dark: #0b0f19;
    --bg-surface: #121826;
    --primary: #10b981;
    --primary-hover: #059669;
    --primary-glow: rgba(16, 185, 129, 0.4);
    --gold: #f59e0b;
    --gold-glow: rgba(245, 158, 11, 0.4);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.hidden {
    display: none !important;
}

/* Typography & Gradients */
h1, h2, h3, h4 {
    line-height: 1.2;
    color: #fff;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.glow-text {
    color: var(--gold);
    text-shadow: 0 0 10px var(--gold-glow);
}

.bg-surface {
    background-color: var(--bg-surface);
}

/* Glassmorphism */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

/* Referral Banner */
.referral-banner {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(245, 158, 11, 0.3);
    padding: 0.75rem 0;
    animation: slideDown 0.5s ease-out forwards;
}

.banner-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0 1rem;
}

.icon-gold {
    color: var(--gold);
    filter: drop-shadow(0 0 5px var(--gold-glow));
}

.banner-text {
    font-size: 0.9rem;
    font-weight: 500;
}

@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

/* Header */
.navbar {
    padding: 1.5rem 0;
    position: absolute;
    width: 100%;
    top: 0;
    z-index: 100;
}

/* Push navbar down if banner is active (handled via JS) */
body.has-banner .navbar {
    top: 45px;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 35px;
}

.nav-download-btn {
    display: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.primary-btn {
    background: linear-gradient(135deg, var(--primary), #059669);
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
    border: 1px solid rgba(255,255,255,0.1);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.6);
}

.secondary-btn {
    background: rgba(255,255,255,0.05);
    color: white;
    border: 1px solid rgba(255,255,255,0.1);
}

.secondary-btn:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

.pulse-btn {
    animation: pulseGlow 2.5s infinite;
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.w-full {
    width: 100%;
}

.lg-btn {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 8rem 0 4rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

/* Background Glow */
.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, rgba(11, 15, 25, 0) 70%);
    z-index: -1;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-trust {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.secure-text {
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

/* Phone Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    position: relative;
    width: 280px;
    height: 580px;
    background: #000;
    border-radius: 40px;
    border: 8px solid #1e293b;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255,255,255,0.1);
    animation: float 6s ease-in-out infinite;
}

.phone-screen {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 32px;
}

.floating-card {
    position: absolute;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 0.75rem 1rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.floating-card.tl { top: 40px; left: -40px; }
.floating-card.br { bottom: 60px; right: -40px; }

.floating-card strong {
    color: var(--primary);
    font-size: 1.2rem;
}
.floating-card span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* Statistics */
.stats {
    padding: 4rem 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.stat-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Features */
.features {
    padding: 6rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.feature-card {
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    border-color: rgba(16, 185, 129, 0.3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Screenshots Slider */
.screenshots {
    padding: 6rem 0;
    overflow: hidden;
}

.slider-container {
    width: 100%;
    padding: 2rem 0;
}

.slider-track {
    display: flex;
    gap: 2rem;
    padding: 0 2rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none; /* Firefox */
}

.slider-track::-webkit-scrollbar {
    display: none; /* Chrome */
}

.screenshot-img {
    height: 500px;
    border-radius: 24px;
    border: 4px solid #1e293b;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    scroll-snap-align: center;
    object-fit: cover;
}

/* How It Works */
.how-it-works {
    padding: 6rem 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    position: relative;
}

.step-card {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.05);
    padding: 2rem;
    border-radius: 16px;
    position: relative;
    z-index: 1;
}

.step-number {
    position: absolute;
    top: -15px;
    left: -15px;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.2rem;
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
}

.step-card h3 {
    margin-bottom: 0.5rem;
}

.step-card p {
    color: var(--text-muted);
}

/* Trust Banner */
.trust-banner {
    padding: 3rem 0;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.trust-flex {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-weight: 500;
}

.trust-item svg {
    color: var(--primary);
    width: 20px;
    height: 20px;
}

/* Download Section */
.download-section {
    padding: 6rem 0 8rem; /* Extra padding for mobile sticky bar */
}

.download-card {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.8) 100%);
}

.download-card h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.download-card p {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}

.apk-meta {
    margin-top: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: #000;
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    color: #475569;
    font-size: 0.9rem;
}

/* Sticky Mobile Bar */
.mobile-sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 1rem;
    z-index: 999;
    box-shadow: 0 -10px 20px rgba(0,0,0,0.3);
}

/* Animations Trigger */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Desktop Media Queries */
@media (min-width: 768px) {
    .nav-download-btn {
        display: inline-block;
        color: white;
        text-decoration: none;
        font-weight: 600;
        border: 1px solid rgba(255,255,255,0.2);
        padding: 0.5rem 1.5rem;
        border-radius: 50px;
        transition: all 0.3s;
    }
    
    .nav-download-btn:hover {
        background: rgba(255,255,255,0.1);
    }

    .hero-container {
        grid-template-columns: 1fr 1fr;
    }

    .hero-text h1 {
        font-size: 4rem;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .steps-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }

    .footer-links {
        flex-direction: row;
        gap: 2rem;
    }

    .mobile-sticky-bar {
        display: none; /* Hide on desktop */
    }
    
    .download-section {
        padding-bottom: 6rem;
    }
}