/* ==========================================
   LANDING PAGE STYLES
   ========================================== */

:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --secondary-color: #28a745;
    --text-dark: #1a1a1a;
    --text-light: #6c757d;
    --background-light: #f8f9fa;
    --background-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
}

/* ==========================================
   PUBLIC LAYOUT
   ========================================== */

.public-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
}

/* ==========================================
   PAGE CONTAINER (for content pages)
   ========================================== */

.page-container {
    padding: 3rem 2rem;
    background: var(--background-light);
    min-height: calc(100vh - 200px);
}

.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.content-wrapper h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.content-wrapper p {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* ==========================================
   HEADER
   ========================================== */

.header {
    background: var(--background-white);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    flex-shrink: 0;
}

.logo a {
    text-decoration: none;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.main-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.header-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-shrink: 0;
}

.auth-buttons {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

/* ==========================================
   LANGUAGE SWITCHER
   ========================================== */

.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--background-light);
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.lang-btn {
    background: none;
    border: none;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: all 0.3s;
}

.lang-btn:hover {
    color: var(--primary-color);
    background: rgba(0, 102, 204, 0.1);
}

.lang-btn.active {
    color: var(--primary-color);
    background: white;
    box-shadow: var(--shadow-sm);
}

.lang-separator {
    color: var(--border-color);
    font-weight: 300;
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    gap: 0.5rem;
}

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

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

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

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

.btn-hero-primary {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

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

.btn-hero-secondary {
    background: var(--secondary-color);
    color: white;
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-hero-secondary:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

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

/* ==========================================
   HERO SECTION
   ========================================== */

.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 5rem 2rem;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    opacity: 0.95;
}

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

.hero-note {
    font-size: 0.875rem;
    opacity: 0.8;
    font-style: italic;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-placeholder {
    width: 100%;
    max-width: 400px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.illustration {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 25px rgba(0,0,0,0.2));
}

/* ==========================================
   FEATURES SECTION
   ========================================== */

.features-section {
    padding: 5rem 2rem;
    background: var(--background-light);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

/* ==========================================
   CTA SECTION
   ========================================== */

.cta-section {
    padding: 5rem 2rem;
    background: var(--primary-color);
    color: white;
    text-align: center;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
}

.cta-container h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-container p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 2rem 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-link {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* ==========================================
   ANIMATIONS
   ========================================== */

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

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        order: -1;
    }
    
    .main-nav {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
    }
    
    .header-right {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }
    
    .auth-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-container h2 {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-large {
        width: 100%;
        max-width: 300px;
    }
    
    .content-wrapper {
        padding: 1.5rem;
    }
    
    .content-wrapper h1 {
        font-size: 2rem;
    }
}