/* ===== CSS Variables ===== */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-light: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
    --transition: all 0.3s ease;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.nav-list {
    display: flex;
    gap: 32px;
}

.nav-link {
    position: relative;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle,
.nav-close {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-light);
}

.btn-download {
    background: linear-gradient(135deg, var(--secondary-color), #d97706);
    color: white;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
    flex-direction: column;
    padding: 20px 40px;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
}

.btn-icon {
    font-size: 1.2rem;
}

.btn-text {
    font-size: 1.1rem;
}

.btn-subtext {
    font-size: 0.8rem;
    font-weight: 400;
    opacity: 0.9;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid var(--primary-color);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-light);
    margin-bottom: 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.title-highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

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

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

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

.phone-mockup {
    position: relative;
    width: 280px;
    height: 560px;
}

.phone-screen {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.phone-frame {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 3px solid #3d3d3d;
    border-radius: 40px;
    pointer-events: none;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 25px;
    background: #1a1a1a;
    border-radius: 20px;
}

/* Bingo Preview */
.bingo-preview {
    width: 200px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.bingo-header {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bingo-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    margin-bottom: 4px;
}

.bingo-cell {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.3);
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-primary);
}

.bingo-cell.marked {
    background: linear-gradient(135deg, var(--secondary-color), #d97706);
    animation: pulse 1s ease-in-out infinite;
}

.bingo-call {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 8px;
    padding: 6px;
    background: rgba(16, 185, 129, 0.2);
    border-radius: 8px;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.floating-cards {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.card {
    position: absolute;
    width: 50px;
    height: 70px;
    background: var(--bg-card);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: 2px solid var(--border-color);
    animation: float 3s ease-in-out infinite;
}

.card-1 {
    top: 10%;
    right: -20px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 20%;
    left: -30px;
    animation-delay: 1s;
}

.card-3 {
    bottom: 5%;
    right: 10%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(5deg); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
    margin: 10px auto 0;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
    40% { transform: rotate(45deg) translateY(10px); }
    60% { transform: rotate(45deg) translateY(5px); }
}

/* ===== Section Styles ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(245, 158, 11, 0.2);
    border: 1px solid var(--secondary-color);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Features Section ===== */
.features {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(99, 102, 241, 0.05) 50%, var(--bg-dark) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.15);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== How to Play Section ===== */
.how-to-play {
    padding: 100px 0;
}

.steps-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 200px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.step-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.step-connector {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 -10px;
    margin-top: -100px;
}

/* ===== Download Section ===== */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.download-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 24px;
}

.download-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 32px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.info-icon {
    color: var(--accent-color);
    font-weight: bold;
}

.download-note {
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.download-visual {
    display: flex;
    justify-content: center;
}

.download-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
    max-width: 300px;
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
}

.download-card:hover {
    transform: scale(1.02);
    border-color: var(--primary-color);
}

.card-icon {
    font-size: 4rem;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.card-version {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 20px;
}

.card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.card-features span {
    padding: 6px 12px;
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid var(--accent-color);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--accent-color);
}

/* ===== Responsible Gaming Section ===== */
.responsible-gaming {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.responsible-content {
    display: flex;
    align-items: center;
    gap: 24px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--accent-color);
    border-radius: var(--radius-lg);
    padding: 24px 32px;
}

.responsible-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.responsible-text h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--accent-color);
}

.responsible-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.age-notice {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}

.age-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--secondary-color);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--bg-dark);
}

/* ===== Footer ===== */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-card);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 300px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.disclaimer {
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--secondary-color);
}

/* ===== Modals ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card-light);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-dark);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: calc(80vh - 80px);
}

.modal-body h3 {
    font-size: 1rem;
    margin-top: 20px;
    margin-bottom: 8px;
    color: var(--primary-light);
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-dark);
    border-radius: var(--radius-md);
}

.contact-icon {
    font-size: 1.25rem;
}

/* ===== Responsive Design ===== */
@media screen and (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image {
        margin-top: 40px;
    }

    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .download-visual {
        order: -1;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-description {
        max-width: 100%;
    }

    .footer-links {
        justify-content: center;
    }
}

@media screen and (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--bg-card);
        padding: 80px 24px 24px;
        transition: var(--transition);
        border-left: 1px solid var(--border-color);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 24px;
    }

    .nav-link {
        font-size: 1.1rem;
    }

    .nav-toggle {
        display: block;
    }

    .nav-close {
        display: block;
        position: absolute;
        top: 20px;
        right: 20px;
    }

 {
        font-size    .hero-title: 2.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .steps-container {
        flex-direction: column;
        gap: 30px;
    }

    .step-connector {
        width: 2px;
        height: 40px;
        margin: 0;
    }

    .download-info {
        grid-template-columns: 1fr;
    }

    .responsible-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}

@media screen and (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .phone-mockup {
        transform: scale(0.85);
    }
}