/* ========================================
   Global Styles & Reset
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Vibrant & Fruity */
    --primary: #FF6B6B;
    --primary-dark: #E85555;
    --secondary: #4ECDC4;
    --accent: #FFE66D;
    --purple: #A66FFF;
    --orange: #FF9F43;
    --green: #5FD37D;

    /* Neutrals */
    --dark: #2D3436;
    --gray: #636E72;
    --light-gray: #DFE6E9;
    --white: #FFFFFF;
    --background: #F8F9FA;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF6B6B 0%, #FF9F43 100%);
    --gradient-secondary: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    --gradient-accent: linear-gradient(135deg, #A66FFF 0%, #667EEA 100%);
    --gradient-rainbow: linear-gradient(135deg, #FF6B6B 0%, #FFE66D 25%, #4ECDC4 50%, #A66FFF 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   Navigation
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.logo-icon {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-menu a:hover {
    color: var(--primary);
}

.nav-menu a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   Hero Section
======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #FFF5F5 0%, #F0F8FF 50%, #FFF9E6 100%);
    z-index: -1;
}

.hero-background::before {
    content: '🍓';
    position: absolute;
    font-size: 200px;
    opacity: 0.05;
    top: 10%;
    right: 10%;
    animation: float 6s ease-in-out infinite;
}

.hero-background::after {
    content: '🍊';
    position: absolute;
    font-size: 150px;
    opacity: 0.05;
    bottom: 15%;
    left: 5%;
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--gray);
    font-weight: 600;
    font-size: 0.9rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Buttons
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-family);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-download {
    background: var(--gradient-accent);
    color: var(--white);
    box-shadow: var(--shadow-lg);
    font-size: 1.25rem;
    padding: 1.25rem 3rem;
}

.btn-download:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   Section Styles
======================================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Features Section
======================================== */
.features {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--background);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
    display: inline-block;
    animation: bounce 2s ease-in-out infinite;
}

.feature-card:nth-child(1) .feature-icon { animation-delay: 0s; }
.feature-card:nth-child(2) .feature-icon { animation-delay: 0.2s; }
.feature-card:nth-child(3) .feature-icon { animation-delay: 0.4s; }
.feature-card:nth-child(4) .feature-icon { animation-delay: 0.6s; }
.feature-card:nth-child(5) .feature-icon { animation-delay: 0.8s; }
.feature-card:nth-child(6) .feature-icon { animation-delay: 1s; }

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    line-height: 1.8;
}

/* ========================================
   Gameplay Section
======================================== */
.gameplay {
    background: linear-gradient(135deg, #FFF5F5 0%, #F0F8FF 100%);
}

.gameplay-steps {
    display: grid;
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.step:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 80px;
}

.step-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--dark);
}

.step-content p {
    color: var(--gray);
    line-height: 1.8;
}

/* ========================================
   Energy System Section
======================================== */
.energy-system {
    background: var(--white);
}

.energy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.energy-info h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

.energy-description {
    font-size: 1.1rem;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.energy-pricing {
    background: var(--gradient-accent);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.price-tag {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.currency {
    font-size: 2.5rem;
}

.amount {
    font-size: 4rem;
}

.equals {
    font-size: 2rem;
    opacity: 0.8;
}

.energy {
    font-size: 2rem;
}

.price-note {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

.energy-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.energy-icon {
    font-size: 150px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.energy-bar {
    width: 100%;
    height: 40px;
    background: var(--light-gray);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.energy-fill {
    height: 100%;
    width: 100%;
    background: var(--gradient-primary);
    animation: fillEnergy 3s ease-in-out infinite;
}

@keyframes fillEnergy {
    0% { width: 20%; }
    50% { width: 100%; }
    100% { width: 20%; }
}

/* ========================================
   Download Section
======================================== */
.download {
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    color: var(--white);
}

.download .section-title,
.download .section-subtitle {
    color: var(--white);
}

.download-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.download-info h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.download-info > p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.download-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.download-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.download-features svg {
    color: var(--accent);
    flex-shrink: 0;
}

.download-note {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}

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

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--dark);
    border-radius: 40px;
    padding: 15px;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 25px;
    background: var(--dark);
    border-radius: 0 0 20px 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #FFF5F5 0%, #F0F8FF 100%);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.game-preview {
    font-size: 2.5rem;
    line-height: 1.3;
    text-align: center;
    animation: gameAnimation 4s ease-in-out infinite;
}

@keyframes gameAnimation {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ========================================
   Footer
======================================== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: var(--light-gray);
    line-height: 1.8;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--light-gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.company-info {
    color: var(--light-gray);
    line-height: 1.8;
}

.company-info a {
    color: var(--secondary);
    text-decoration: none;
}

.company-info a:hover {
    text-decoration: underline;
}

.footer-note {
    font-size: 0.85rem;
    opacity: 0.7;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--light-gray);
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 968px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .energy-content,
    .download-content {
        grid-template-columns: 1fr;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

    .game-preview {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .hero {
        min-height: auto;
        padding: 100px 0 var(--spacing-xl);
    }

    .hero-stats {
        gap: var(--spacing-md);
    }

    .stat-number {
        font-size: 2rem;
    }

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

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

    .step-number {
        min-width: auto;
    }

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

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }

    .price-tag {
        flex-wrap: wrap;
        font-size: 1.5rem;
    }

    .amount {
        font-size: 3rem;
    }
}

/* ========================================
   Accessibility
======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.3);
    }
}