/* Genius Plus - Base Styles */

/* CSS Variables */
:root {
    /* Primary Colors - Genius Plus Theme */
    --primary-blue: #007AFF;
    --secondary-purple: #5856D6;
    --accent-green: #34C759;
    --accent-orange: #FF9500;
    --accent-red: #FF3B30;
    
    /* Brand Gradients */
    --word-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --letter-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --black: #000000;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--radius-md);
    z-index: 1000;
    transition: var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--medium-gray);
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--secondary-purple);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-decoration: none;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    min-height: 48px;
}

.btn-primary {
    background: var(--word-gradient);
    color: var(--white);
    border-color: transparent;
}

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

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

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

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    min-height: 56px;
}

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    transition: var(--transition-normal);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--dark-gray);
}

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0;
    background: var(--word-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--medium-gray);
    font-weight: 500;
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-blue);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 3px;
    background: var(--dark-gray);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Main Content */
.main-content {
    margin-top: 80px;
}

/* Sections */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: var(--word-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-3xl) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

@media (min-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-title-main {
    display: block;
    background: var(--word-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title-sub {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--medium-gray);
    margin-top: var(--spacing-sm);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--medium-gray);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    color: var(--dark-gray);
}

.hero-feature-icon {
    font-size: var(--font-size-xl);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    align-items: center;
}

.app-store-btn {
    display: inline-block;
    transition: var(--transition-normal);
}

.app-store-btn:hover {
    transform: scale(1.05);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    position: relative;
    max-width: 300px;
}

.hero-phone {
    width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
}

.hero-phone:hover {
    transform: scale(1.05);
}

.hero-floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    font-size: var(--font-size-2xl);
    animation: float 3s ease-in-out infinite;
}

.floating-1 {
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.floating-2 {
    top: 20%;
    right: -15%;
    animation-delay: 0.5s;
}

.floating-3 {
    bottom: 30%;
    left: -5%;
    animation-delay: 1s;
}

.floating-4 {
    bottom: 10%;
    right: -10%;
    animation-delay: 1.5s;
}

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

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

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid #f1f3f4;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
    display: block;
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

.feature-card p {
    color: var(--medium-gray);
    line-height: 1.6;
}

/* How to Play Section */
.how-to-play {
    background: var(--light-gray);
}

.how-to-play-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .how-to-play-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.how-to-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-lg);
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.how-to-step:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.step-image {
    width: 100%;
    max-width: 200px;
    margin-bottom: var(--spacing-md);
}

.step-screenshot {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.how-to-step:hover .step-screenshot {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--word-gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.step-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
}

.step-content p {
    color: var(--medium-gray);
    margin: 0;
    line-height: 1.6;
}

/* Categories Section */
.categories {
    background: var(--white);
}

.categories-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .categories-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.category-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid #f1f3f4;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    display: block;
}

.category-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
}

.category-card p {
    color: var(--medium-gray);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.category-multiplier {
    display: inline-block;
    background: var(--letter-gradient);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

/* Testimonials Section */
.testimonials {
    background: var(--light-gray);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-style: italic;
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.testimonial-author strong {
    color: var(--dark-gray);
    font-weight: 600;
}

.testimonial-author span {
    color: var(--medium-gray);
    font-size: var(--font-size-sm);
    display: block;
    margin-top: var(--spacing-xs);
}

/* Download Section */
.download {
    background: var(--word-gradient);
    color: var(--white);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .download-content {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }
}

.download-text h2 {
    color: var(--white);
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

.download-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
}

.download-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.download-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--white);
    font-weight: 500;
}

.download-feature-icon {
    font-size: var(--font-size-lg);
}

.download-actions {
    text-align: center;
}

@media (min-width: 768px) {
    .download-actions {
        text-align: right;
    }
}

.download-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-md);
}

/* FAQ Section */
.faq {
    background: var(--white);
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.faq-item {
    background: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.faq-question {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
}

.faq-answer {
    color: var(--medium-gray);
    line-height: 1.6;
    margin: 0;
}

.faq-cta {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--light-gray);
    border-radius: var(--radius-lg);
}

.faq-cta p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--dark-gray);
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-section h3,
.footer-section h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-fast);
}

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

.app-store-badges {
    margin-top: var(--spacing-lg);
}

.app-store-badge {
    display: inline-block;
    transition: var(--transition-normal);
}

.app-store-badge:hover {
    transform: scale(1.05);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-text p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition-fast);
}

.footer-social a:hover {
    color: var(--white);
}

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

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Mobile Responsive */
@media (max-width: 767px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }
    
    .nav.nav-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .download-features {
        justify-content: center;
    }
    
    .how-to-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-image {
        max-width: 150px;
    }
    
    .step-number {
        align-self: center;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .hero-actions,
    .download-actions {
        display: none;
    }
    
    .main-content {
        margin-top: 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
    }
}