/* Yono Rummy 777 - Professional CSS */

/* CSS Variables - Yono Rummy 777 Color Palette */
:root {
    --primary-green: #03440c;
    --accent-gold: #e0be36;
    --black: #000000;
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f1f3f4;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
    
    /* 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: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

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

/* AOS (Animate On Scroll) CSS */
.aos-fade {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.aos-fade.aos-animate {
    opacity: 1;
    transform: translateY(0);
}

.aos-fade-up {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

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

.aos-fade-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease-out;
}

.aos-fade-left.aos-animate {
    opacity: 1;
    transform: translateX(0);
}

.aos-fade-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease-out;
}

.aos-fade-right.aos-animate {
    opacity: 1;
    transform: translateX(0);
}

/* Staggered animations for child elements */
.aos-stagger > * {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.aos-stagger.aos-animate > * {
    opacity: 1;
    transform: translateY(0);
}

.aos-stagger > *:nth-child(1) { transition-delay: 0.1s; }
.aos-stagger > *:nth-child(2) { transition-delay: 0.2s; }
.aos-stagger > *:nth-child(3) { transition-delay: 0.3s; }
.aos-stagger > *:nth-child(4) { transition-delay: 0.4s; }
.aos-stagger > *:nth-child(5) { transition-delay: 0.5s; }
.aos-stagger > *:nth-child(6) { transition-delay: 0.6s; }

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--gray-50);
    overflow-x: hidden;
}

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

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--gray-800);
    font-weight: 500;
}

/* Header and Navigation */
.header {
    background: linear-gradient(135deg, var(--primary-green), #045a0f);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: var(--spacing-md) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-item {
    list-style: none;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    border: 2px solid transparent;
    display: inline-block;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--accent-gold);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(224, 190, 54, 0.3);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(3, 68, 12, 0.4);
    transform: translateY(-2px);
    border: 2px solid var(--accent-gold);
    font-weight: 600;
}

/* Button Styles */
.nav-link.login-btn, 
.nav-link.register-btn {
    background: var(--accent-gold);
    color: var(--primary-green);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    transition: var(--transition);
    border: 2px solid var(--primary-green);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
}

.nav-link.login-btn:hover, 
.nav-link.register-btn:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-gold);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    outline: none;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--white);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: var(--radius-sm);
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-green), #045a0f);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.hero-grid {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.hero-content {
    flex: 1;
    text-align: center;
    align-self: center;
    padding-top: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-content h1 {
    font-size: 0.9rem;
    line-height: 1.2;
    font-weight: 600;
}

.hero-content p {
    font-size: 0.8rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
    color: var(--gray-100);
}

.hero-content .cta-buttons {
    margin-top: var(--spacing-xs);
    gap: var(--spacing-xs);
    display: flex;
    flex-wrap: wrap;
}

.hero-content .cta-button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    background: var(--white);
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.hero-content .cta-button:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-gold);
}

/* FAQ and Content Links */
.faq-answer a,
.content-section a,
.testimonial-text a {
    color: var(--black);
    font-weight: bold;
    text-decoration: none;
    padding: 0 var(--spacing-sm);
    transition: var(--transition);
}

.faq-answer a:hover,
.content-section a:hover,
.testimonial-text a:hover {
    color: var(--primary-green);
    text-decoration: underline;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
}

.hero-image img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.hero-section h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-section p {
    font-size: 1.2rem;
    color: var(--gray-100);
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

/* Content Sections */
.content-section {
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-xl);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--gray-200);
}

.content-section h2 {
    color: var(--primary-green);
    border-bottom: 3px solid var(--accent-gold);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.content-section h3 {
    color: var(--primary-green);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

/* Feature Cards */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.feature-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid var(--gray-300);
}

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

.feature-card h3 {
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.feature-card p {
    color: var(--gray-800);
    font-weight: 500;
}

/* FAQ Section */
.faq-item {
    margin-bottom: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--gray-300);
}

.faq-question {
    background: var(--primary-green);
    color: var(--white);
    padding: var(--spacing-lg);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    width: 100%;
    text-align: left;
    font-size: 1.1rem;
}

.faq-question:hover {
    background: #045a0f;
}

.faq-answer {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    color: var(--gray-800);
    display: none;
    border-top: 1px solid var(--gray-300);
}

.faq-answer.active {
    display: block;
}

/* Testimonial Section */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.testimonial-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--gray-300);
    border-left: 4px solid var(--accent-gold);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-md);
    color: var(--gray-800);
    font-weight: 500;
}

.testimonial-author {
    font-weight: 700;
    color: var(--primary-green);
    font-size: 1.1rem;
}

.testimonial-role {
    color: var(--gray-700);
    font-size: 0.9rem;
    font-weight: 600;
}

/* Screenshots Section */
.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    overflow-x: auto;
    padding: var(--spacing-md) 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.screenshots-grid::-webkit-scrollbar {
    display: none;
}

.screenshot-item {
    min-width: 500px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    background: var(--white);
}

.screenshot-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-lg);
}

.screenshot-item img {
    width: 500px;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: 3px solid var(--primary-green);
}

.screenshot-item img:hover {
    box-shadow: var(--shadow-xl);
    transform: scale(1.02);
    border-color: var(--accent-gold);
}

/* Custom Scrollbar */
.screenshots-scrollbar {
    margin-top: var(--spacing-lg);
    padding: 0 var(--spacing-md);
}

.scrollbar-track {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    position: relative;
    cursor: pointer;
}

.scrollbar-thumb {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-green), var(--accent-gold));
    border-radius: var(--radius-full);
    position: absolute;
    left: 0;
    top: 0;
    min-width: 20px;
    cursor: grab;
    transition: var(--transition);
}

.scrollbar-thumb:active {
    cursor: grabbing;
}

.scrollbar-thumb:hover {
    background: linear-gradient(90deg, var(--accent-gold), var(--primary-green));
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--accent-gold), #f4d03f);
    color: var(--primary-green);
    padding: var(--spacing-3xl);
    text-align: center;
    border-radius: var(--radius-xl);
    margin: var(--spacing-3xl) 0;
    box-shadow: var(--shadow-xl);
}

.cta-section h2 {
    color: var(--primary-green);
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.cta-button {
    background: var(--primary-green);
    color: var(--white);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    border: 2px solid var(--accent-gold);
    display: inline-block;
    box-shadow: var(--shadow-lg);
}

.cta-button:hover {
    background: var(--accent-gold);
    color: var(--primary-green);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-green);
}

/* Breadcrumb */
.breadcrumb {
    background: var(--white);
    padding: var(--spacing-sm) var(--spacing-sm);
    border-radius: var(--radius-md);
    border: 2px solid var(--gray-300);
    box-shadow: var(--shadow-sm);
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.breadcrumb-item {
    color: var(--gray-800);
    font-weight: 500;
}

.breadcrumb-item:not(:last-child)::after {
    content: ">";
    margin-left: var(--spacing-sm);
    color: var(--gray-400);
}

.breadcrumb-link {
    color: var(--primary-green);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 600;
}

.breadcrumb-link:hover {
    color: var(--accent-gold);
    text-decoration: underline;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary-green);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 1000;
    display: none;
}

.back-to-top:hover {
    background: var(--accent-gold);
    color: var(--primary-green);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.back-to-top.visible {
    display: block;
}

/* Footer */
.footer {
    background: var(--primary-green);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    text-align: center;
}

.footer p {
    color: var(--gray-100);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    margin: var(--spacing-xl) 0;
}

.footer-link {
    color: var(--gray-100);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--accent-gold);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: linear-gradient(135deg, var(--primary-green), #045a0f);
        width: 100%;
        height: calc(100vh - 70px);
        text-align: center;
        transition: 0.3s ease-in-out;
        box-shadow: var(--shadow-lg);
        overflow-y: auto;
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        width: 100%;
        padding: var(--spacing-sm);
    }
    
    .login-btn, .register-btn {
        margin: var(--spacing-xs) auto;
        display: inline-block;
        min-width: 120px;
    }
    
    body.menu-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    .hero-grid {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .hero-content {
        text-align: center;
        align-self: center;
        align-items: center;
    }
    
    .hero-content h1 {
        font-size: 0.85rem;
    }
    
    .hero-content p {
        font-size: 0.75rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .main-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .hero-section p {
        font-size: 1rem;
    }
    
    .content-section {
        padding: var(--spacing-lg);
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshots-grid {
        grid-template-columns: repeat(7, 500px);
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) 0;
    }
    
    .screenshot-item {
        min-width: 450px;
    }
    
    .screenshot-item img {
        width: 450px;
        height: 450px;
    }
}

/* Print Styles */
@media print {
    .header,
    .hamburger,
    .back-to-top {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .main-content {
        padding: 0;
    }
    
    .content-section {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
}