/* style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Satoshi', sans-serif;
    background: linear-gradient(135deg, #0f0b1f 0%, #1a1330 100%);
    color: #f0eaff;
    line-height: 1.6;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 30px;
}

/* Royal Purple & Gold Theme */
:root {
    --purple-deep: #1a1330;
    --purple-dark: #231b3b;
    --purple-medium: #2d2447;
    --gold: #d4af37;
    --gold-light: #f5e18b;
    --gold-dark: #b8860b;
    --text-light: #e2d5f0;
    --text-soft: #b4a5d0;
    --white: #ffffff;
    --shadow: 0 20px 35px -10px rgba(0, 0, 0, 0.5);
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Clash Display', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gold-text {
    color: var(--gold);
    background: linear-gradient(145deg, var(--gold), var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Header */
.header {
    background: rgba(26, 19, 48, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    border-bottom: 2px solid var(--gold);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(145deg, var(--gold), var(--gold-dark));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 800;
    color: var(--purple-deep);
    transform: rotate(5deg);
}

.logo-text {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(145deg, #fff, var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Header Buttons (Đăng Ký, Đăng Nhập) */
.header-actions {
    display: flex;
    gap: 15px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    cursor: pointer;
}

.btn-register {
    background: transparent;
    border: 2px solid var(--gold);
    color: var(--gold);
}

.btn-register:hover {
    background: var(--gold);
    color: var(--purple-deep);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px -5px var(--gold);
}

.btn-login {
    background: linear-gradient(145deg, var(--gold), var(--gold-dark));
    color: var(--purple-deep);
    font-weight: 700;
}

.btn-login:hover {
    background: linear-gradient(145deg, var(--gold-light), var(--gold));
    transform: translateY(-3px);
    box-shadow: 0 10px 20px -5px var(--gold);
}

/* Hero Section */
.hero {
    padding: 70px 0;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(212, 175, 55, 0.15);
    border: 1px solid var(--gold);
    padding: 8px 20px;
    border-radius: 60px;
    font-size: 0.9rem;
    margin-bottom: 25px;
    color: var(--gold-light);
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 25px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-soft);
    margin-bottom: 35px;
    max-width: 550px;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.btn-hero-sodo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(145deg, var(--gold), var(--gold-dark));
    color: var(--purple-deep);
    padding: 18px 42px;
    border-radius: 60px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.4rem;
    width: fit-content;
    box-shadow: 0 20px 30px -10px var(--gold);
    transition: 0.3s;
    border: 2px solid transparent;
}

.btn-hero-sodo:hover {
    background: transparent;
    color: var(--gold);
    border-color: var(--gold);
    transform: scale(1.02) translateY(-3px);
    box-shadow: 0 30px 40px -15px var(--gold);
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--gold);
}

.stat-label {
    color: var(--text-soft);
    font-size: 0.95rem;
}

.hero-image-frame {
    background: var(--purple-medium);
    border-radius: 40px;
    padding: 25px;
    border: 3px solid var(--gold);
    box-shadow: 0 30px 40px -15px #00000080;
}

.hero-image-frame img {
    width: 100%;
    border-radius: 24px;
    display: block;
}

/* Naked URL Banner */
.naked-banner {
    background: linear-gradient(145deg, var(--purple-dark), #2d1f42);
    border-radius: 70px;
    padding: 25px 35px;
    margin: 30px 0 50px;
    border: 2px solid var(--gold);
    box-shadow: 0 15px 25px -10px #00000060;
}

.naked-banner-content {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    font-size: 1.2rem;
}

.naked-banner-content i.fa-link {
    color: var(--gold);
    font-size: 1.8rem;
}

.naked-label {
    color: var(--text-soft);
}

.naked-url {
    font-family: 'Courier New', monospace;
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--gold);
    text-decoration: none;
    border-bottom: 2px dashed var(--gold);
    padding-bottom: 5px;
}

.naked-url:hover {
    color: var(--gold-light);
    border-bottom-color: var(--gold-light);
}

.naked-badge {
    background: rgba(212, 175, 55, 0.2);
    padding: 8px 20px;
    border-radius: 60px;
    color: var(--gold);
    border: 1px solid var(--gold);
}

/* Features Section */
.features {
    padding: 60px 0;
}

.section-title {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--purple-dark);
    border-radius: 40px;
    padding: 35px;
    border: 1px solid #3d2e57;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    border-color: var(--gold);
    transform: translateY(-8px);
    box-shadow: 0 25px 35px -15px #d4af3740;
}

.feature-card.featured {
    background: linear-gradient(145deg, var(--purple-dark), #2f2349);
    border: 2px solid var(--gold);
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 25px;
}

.feature-icon.purple-glow {
    background: #2d2447;
    color: var(--gold);
    border: 1px solid var(--gold);
}

.feature-icon.gold-glow {
    background: linear-gradient(145deg, var(--gold), var(--gold-dark));
    color: var(--purple-deep);
}

.feature-card h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: white;
}

.feature-card p {
    color: var(--text-soft);
    margin-bottom: 20px;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    text-decoration: none;
    font-weight: 600;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: 0.2s;
}

.feature-link:hover {
    border-bottom-color: var(--gold);
    gap: 12px;
}

/* Games Showcase */
.games-showcase {
    padding: 40px 0;
}

.games-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.game-item {
    background: var(--purple-dark);
    padding: 15px 30px;
    border-radius: 60px;
    border: 1px solid #3d2e57;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--text-light);
    transition: 0.2s;
}

.game-item:hover {
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-3px);
}

.game-item i {
    color: var(--gold);
}

/* Security Section */
.security {
    padding: 60px 0;
}

.security-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.security-card {
    border-radius: 40px;
    padding: 40px;
}

.security-card.dark {
    background: var(--purple-dark);
    border: 1px solid #3d2e57;
}

.security-card.light {
    background: linear-gradient(145deg, #2f2349, #251e3b);
    border: 2px solid var(--gold);
}

.security-card h3 {
    font-size: 2rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.security-card ul {
    list-style: none;
}

.security-card li {
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-light);
}

.security-card i.fa-check-circle {
    color: var(--gold);
    font-size: 1.3rem;
}

/* App Download Section */
.app-download {
    padding: 60px 0;
}

.app-download .container {
    background: linear-gradient(145deg, var(--purple-dark), #1e1638);
    border-radius: 70px;
    padding: 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    border: 2px solid var(--gold);
}

.app-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.app-content p {
    color: var(--text-soft);
    max-width: 450px;
    margin-bottom: 30px;
}

.app-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.app-button {
    background: rgba(255, 255, 255, 0.1);
    padding: 14px 30px;
    border-radius: 60px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    border: 1px solid var(--gold);
    cursor: default;
}

.app-button i {
    color: var(--gold);
    font-size: 1.4rem;
}

.app-qr {
    text-align: center;
}

.qr-code {
    width: 140px;
    height: 140px;
    background: white;
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--purple-deep);
    margin-bottom: 10px;
    border: 3px solid var(--gold);
}

/* Footer */
.footer {
    background: #0f0b1f;
    padding: 60px 0 30px;
    margin-top: 60px;
    border-top: 3px solid var(--gold);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 2.2rem;
    font-weight: 800;
    background: linear-gradient(145deg, var(--gold), var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.footer-col h4 {
    color: var(--gold);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-col p {
    color: var(--text-soft);
    line-height: 2;
}

.copyright {
    border-top: 1px solid #2d2447;
    padding-top: 30px;
    text-align: center;
    color: var(--text-soft);
}

.keywords {
    margin-top: 10px;
    color: #6b5b8a;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .security-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .naked-banner-content {
        flex-direction: column;
    }
    .naked-url {
        font-size: 1.2rem;
    }
}