/* =============================================================================
   Landing Page - Ana Sayfa CSS
   ============================================================================= */

/* Hero Section */
.hero-section {
    position: relative;
    padding: calc(var(--navbar-height) + var(--spacing-16)) 0 var(--spacing-20);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    animation: float 8s ease-in-out infinite;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: rgba(255, 255, 255, 0.95);
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--spacing-6);
    animation: fadeInUp 0.6s ease;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-extrabold);
    color: white;
    line-height: 1.15;
    margin-bottom: var(--spacing-6);
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-title .text-gradient {
    background: linear-gradient(135deg, #fbbf24, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    margin-bottom: var(--spacing-8);
    max-width: 520px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-4);
    animation: fadeInUp 0.6s ease 0.3s both;
}

.btn-hero-primary {
    background: white;
    color: var(--color-primary);
    padding: var(--spacing-4) var(--spacing-8);
    border-radius: var(--radius-xl);
    font-weight: var(--font-semibold);
    font-size: var(--font-size-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    text-decoration: none;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.btn-hero-secondary {
    background: transparent;
    color: white;
    padding: var(--spacing-4) var(--spacing-8);
    border-radius: var(--radius-xl);
    font-weight: var(--font-semibold);
    font-size: var(--font-size-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-base);
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: var(--spacing-8);
    margin-top: var(--spacing-12);
    animation: fadeInUp 0.6s ease 0.4s both;
}

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

.hero-stat-value {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: var(--font-extrabold);
    color: white;
}

.hero-stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-illustration {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.hero-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    position: relative;
}

.hero-card-header {
    display: flex;
    gap: var(--spacing-4);
    align-items: center;
    margin-bottom: var(--spacing-4);
}

.hero-card-avatar {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.hero-card-name {
    font-weight: var(--font-bold);
    color: var(--color-gray-800);
}

.hero-card-subject {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

.hero-card-stars {
    color: #fbbf24;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-4);
}

.hero-card-slots {
    display: flex;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.hero-slot {
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-medium);
}

.hero-slot-available {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.hero-slot-booked {
    background: var(--color-gray-100);
    color: var(--color-gray-400);
}

/* Floating badges around hero card */
.hero-floating-badge {
    position: absolute;
    padding: var(--spacing-3) var(--spacing-4);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    animation: floatBadge 4s ease-in-out infinite;
}

.hero-floating-badge:nth-child(2) {
    top: -20px;
    right: -40px;
    color: var(--color-success);
}

.hero-floating-badge:nth-child(3) {
    bottom: -20px;
    left: -40px;
    color: var(--color-primary);
    animation-delay: 1s;
}

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

/* =============================================================================
   Subjects Section
   ============================================================================= */
.subjects-section {
    padding: var(--spacing-20) 0;
    background: var(--color-white);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-extrabold);
    color: var(--color-gray-900);
    text-align: center;
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    text-align: center;
    margin-bottom: var(--spacing-12);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-4);
}

.subject-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-6) var(--spacing-4);
    background: var(--color-white);
    border: 2px solid var(--color-gray-100);
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.subject-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.subject-card:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.subject-card:hover::before {
    transform: scaleX(1);
}

.subject-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xl);
    transition: all var(--transition-fast);
}

.subject-card:hover .subject-icon {
    background: var(--color-primary);
    color: white;
}

.subject-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--color-gray-800);
    text-align: center;
}

.subject-count {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
}

/* =============================================================================
   Featured Teachers Section
   ============================================================================= */
.featured-teachers-section {
    padding: var(--spacing-20) 0;
    background: var(--color-gray-50);
}

.teachers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-10);
}

/* Teacher Card Component - on landing page */
.teacher-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-200);
    padding: var(--spacing-6);
    transition: all var(--transition-base);
}

.teacher-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.view-all-link {
    text-align: center;
}

.view-all-link a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.view-all-link a:hover {
    gap: var(--spacing-3);
}

/* =============================================================================
   How It Works Section
   ============================================================================= */
.how-it-works-section {
    padding: var(--spacing-20) 0;
    background: var(--color-white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-8);
    counter-reset: step;
}

.step-card {
    text-align: center;
    position: relative;
    padding: var(--spacing-6);
}

.step-card::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    top: 0;
    right: var(--spacing-4);
    font-size: 4rem;
    font-weight: var(--font-extrabold);
    color: var(--color-gray-100);
    line-height: 1;
}

.step-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: var(--radius-xl);
    font-size: 24px;
    margin: 0 auto var(--spacing-5);
    position: relative;
    z-index: 1;
    transition: all var(--transition-base);
}

.step-card:hover .step-icon {
    background: var(--color-primary);
    color: white;
    transform: scale(1.1);
}

.step-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-3);
}

.step-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* =============================================================================
   Testimonials Section
   ============================================================================= */
.testimonials-section {
    padding: var(--spacing-20) 0;
    background: linear-gradient(135deg, #f0f4ff 0%, #faf5ff 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-6);
}

.testimonial-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    position: relative;
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: var(--spacing-4);
    left: var(--spacing-6);
    font-size: 4rem;
    line-height: 1;
    color: var(--color-primary-bg);
    font-family: serif;
}

.testimonial-stars {
    margin-bottom: var(--spacing-4);
    color: #fbbf24;
    font-size: var(--font-size-sm);
}

.testimonial-text {
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-6);
    font-style: italic;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.testimonial-author-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    overflow: hidden;
}

.testimonial-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-author-name {
    font-weight: var(--font-semibold);
    color: var(--color-gray-800);
    display: block;
}

.testimonial-author-role {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
}

/* =============================================================================
   CTA Section
   ============================================================================= */
.cta-section {
    padding: var(--spacing-20) 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='20' height='20' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='1' cy='1' r='1' fill='rgba(255,255,255,0.05)'/%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-extrabold);
    color: white;
    margin-bottom: var(--spacing-4);
}

.cta-desc {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--spacing-8);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-4);
    justify-content: center;
}

/* =============================================================================
   Footer
   ============================================================================= */
.site-footer {
    background: var(--color-gray-900);
    padding: var(--spacing-16) 0 var(--spacing-8);
    color: var(--color-gray-400);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--spacing-10);
    margin-bottom: var(--spacing-12);
}

.footer-brand .footer-logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-extrabold);
    color: white;
    margin-bottom: var(--spacing-4);
}

.footer-brand .footer-desc {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    max-width: 300px;
}

.footer-heading {
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-5);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.footer-links a {
    color: var(--color-gray-400);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    font-size: var(--font-size-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-4);
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-gray-400);
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

/* =============================================================================
   Responsive
   ============================================================================= */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-section {
        min-height: auto;
        padding: calc(var(--navbar-height) + var(--spacing-8)) 0 var(--spacing-12);
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

    .hero-visual {
        display: none;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: var(--font-size-base);
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-stats {
        justify-content: space-around;
        gap: var(--spacing-4);
    }

    .subjects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }
}