/**
 * Site Public Styles - Glassmorphism Design
 */

/* ===== Variables ===== */
:root {
    --bg-gradient: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent: #667eea;
    --accent-hover: #764ba2;
    --success: #00d26a;
    --warning: #ffc107;
    --danger: #ff4757;
    --info: #3498db;
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s ease;
}

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

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

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ===== Animated Background ===== */
.animated-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--accent-hover);
    bottom: -100px;
    right: -100px;
    animation-delay: -5s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: #667eea;
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(40px, 10px) scale(1.05); }
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== Glass Card ===== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: transparent;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 12, 41, 0.9);
    backdrop-filter: blur(20px);
    padding: 0.75rem 0;
}

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

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.navbar-brand i {
    font-size: 1.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.navbar-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    transition: color var(--transition);
    border-radius: var(--radius);
}

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

.nav-link.active {
    background: var(--glass-bg);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--glass-bg);
    border-color: var(--accent);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.w-full {
    width: 100%;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 0 4rem;
    position: relative;
}

.hero-content {
    max-width: 700px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

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

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-cards {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
}

.floating-card {
    position: absolute;
    padding: 1rem 1.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: floatCard 6s ease-in-out infinite;
    white-space: nowrap;
}

.floating-card i {
    font-size: 1.25rem;
    color: var(--accent);
}

.card-1 { top: 0; right: 0; animation-delay: 0s; }
.card-2 { top: 80px; right: 80px; animation-delay: -2s; }
.card-3 { top: 160px; right: 20px; animation-delay: -4s; }

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ===== Sections ===== */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* ===== Features Section ===== */
.features {
    padding: 5rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    padding: 2rem;
    text-align: center;
    transition: transform var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 1.75rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* ===== Stats Section ===== */
.stats {
    padding: 5rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-item {
    padding: 2rem;
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* ===== CTA Section ===== */
.cta {
    padding: 5rem 0;
}

.cta-content {
    padding: 3rem;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.cta-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.cta-hint {
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.cta-hint strong {
    color: var(--accent);
}

/* ===== Demo Section ===== */
.demo {
    padding: 5rem 0;
}

.demo-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

/* ===== Page Hero ===== */
.page-hero {
    padding: 8rem 0 4rem;
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* ===== Content Section ===== */
.content-section {
    padding: 3rem 0 5rem;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
}

.content-main {
    padding: 2rem;
}

.content-main h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.content-main h3 {
    font-size: 1.25rem;
    margin: 2rem 0 1rem;
}

.content-main p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
    margin: 1.5rem 0;
}

.feature-list li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius);
}

.feature-list li i {
    color: var(--success);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.feature-list li strong {
    display: block;
    margin-bottom: 0.25rem;
}

.feature-list li p {
    margin: 0;
    font-size: 0.875rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tech-badge {
    padding: 0.5rem 1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.875rem;
}

.content-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    padding: 1.5rem;
}

.info-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.info-card h4 i {
    color: var(--accent);
}

.code-block {
    background: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: var(--radius);
    font-family: monospace;
    font-size: 0.8125rem;
    overflow-x: auto;
    white-space: pre;
    color: var(--text-secondary);
}

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

.quick-links li {
    margin-bottom: 0.5rem;
}

.quick-links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    color: var(--text-secondary);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.quick-links a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.quick-links a i {
    color: var(--accent);
}

/* ===== Contact Section ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
}

.contact-form {
    padding: 2rem;
}

.contact-form h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-info .info-card {
    text-align: center;
}

.info-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 1rem;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-icon i {
    font-size: 1.25rem;
    color: white;
}

.contact-info h4 {
    justify-content: center;
}

.contact-info p {
    color: var(--text-secondary);
    margin: 0;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    color: var(--text-primary);
    transition: all var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-dialog {
    width: 100%;
    max-width: 500px;
    transform: scale(0.9) translateY(-30px);
    transition: transform var(--transition);
}

.modal.active .modal-dialog {
    transform: scale(1) translateY(0);
}

.modal-sm .modal-dialog {
    max-width: 400px;
}

.modal-content {
    overflow: hidden;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    font-size: 1.25rem;
    transition: color var(--transition);
}

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

.modal-body {
    padding: 1.5rem;
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ===== Loader ===== */
.loader-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.loader-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loader-text {
    color: var(--text-secondary);
}

/* ===== Notifications ===== */
#notifications-container {
    position: fixed;
    top: 5rem;
    right: 1rem;
    z-index: 4000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.notification {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: rgba(30, 30, 50, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    min-width: 280px;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
}

.notification.success { border-left: 3px solid var(--success); }
.notification.error { border-left: 3px solid var(--danger); }
.notification.warning { border-left: 3px solid var(--warning); }
.notification.info { border-left: 3px solid var(--info); }

.notification i {
    font-size: 1.25rem;
}

.notification.success i { color: var(--success); }
.notification.error i { color: var(--danger); }
.notification.warning i { color: var(--warning); }
.notification.info i { color: var(--info); }

.notification-close {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
}

/* ===== Footer ===== */
.footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-brand .brand i {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition);
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

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

/* ===== Animations ===== */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
    opacity: 0;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }

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

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .hero-cards {
        display: none;
    }
    
    .content-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767.98px) {
    .navbar-toggle {
        display: flex;
    }
    
    .navbar-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(15, 12, 41, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 2rem 2rem;
        gap: 2rem;
        transition: right var(--transition);
    }
    
    .navbar-menu.active {
        right: 0;
    }
    
    .navbar-nav {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 0.75rem 0;
    }
    
    .navbar-actions {
        width: 100%;
    }
    
    .navbar-actions .btn {
        width: 100%;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand .brand {
        justify-content: center;
    }
}