/* ==========================================================================
   CSS Design System & Variables (TopEnglish Bishkek)
   ========================================================================== */
:root {
    --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --secondary-gradient: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --accent-gradient: linear-gradient(135deg, #ff8a05 0%, #ffc000 100%);
    --glass-background: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.4);
    
    --bg-color: #0b0f19;
    --card-bg: #151d30;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --border-color: rgba(255, 255, 255, 0.08);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.4);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

/* ==========================================================================
   Typography & Headers
   ========================================================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.2rem;
    }
}

h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1.25rem;
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.gradient-text-hero {
    background: linear-gradient(90deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

/* ==========================================================================
   Buttons & CTAs
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.6);
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-primary);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-full-width {
    width: 100%;
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.loc-badge {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

@media (max-width: 900px) {
    .nav-links {
        display: none;
    }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    position: relative;
    padding-top: 150px;
    padding-bottom: 80px;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.hero-glow-1 {
    position: absolute;
    top: -20%;
    left: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
}

.hero-glow-2 {
    position: absolute;
    bottom: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-content {
    max-width: 850px;
}

.badge {
    display: inline-flex;
    background: rgba(79, 70, 229, 0.1);
    color: #818cf8;
    border: 1px solid rgba(79, 70, 229, 0.2);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

@media (max-width: 768px) {
    .hero-lead {
        font-size: 1.1rem;
    }
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-num {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat-divider {
    height: 40px;
    width: 1px;
    background: var(--border-color);
}

@media (max-width: 600px) {
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    .stat-divider {
        display: none;
    }
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

/* ==========================================================================
   Filters & Schools Grid
   ========================================================================== */
.content-wrapper {
    padding-top: 80px;
    padding-bottom: 80px;
}

.section-header {
    margin-bottom: 3.5rem;
}

.section-header h2 {
    font-weight: 800;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

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

.filter-panel {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 3rem;
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    justify-content: space-between;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 500;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--primary-gradient);
    color: #ffffff;
    border-color: transparent;
}

.schools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

@media (max-width: 450px) {
    .schools-grid {
        grid-template-columns: 1fr;
    }
}

.school-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.school-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: var(--shadow-md);
}

.school-card-inner {
    padding: 2rem;
}

.card-ranking-tag {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.school-card-header {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.school-card-header h3 {
    font-size: 1.35rem;
    font-weight: 700;
}

.rating-stars {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: #f59e0b; /* Amber */
    font-size: 0.875rem;
}

.rating-num {
    color: var(--text-primary);
    font-weight: 600;
    margin-left: 0.5rem;
}

.price-badge {
    display: inline-block;
    color: #10b981; /* Emerald */
    font-weight: 700;
    font-size: 1.1rem;
}

.school-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.feat-item {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.feat-item i {
    color: #818cf8;
    width: 16px;
    text-align: center;
}

.school-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.pros-cons {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 2rem;
}

.pc-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: #10b981;
    display: block;
    margin-bottom: 0.5rem;
}

.pros-list ul {
    list-style-type: none;
}

.pros-list li {
    font-size: 0.825rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.25rem;
}

.pros-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: #10b981;
    font-weight: 700;
}

/* Premium Card highlight */
.premium-badge-card {
    border-color: rgba(124, 58, 237, 0.3);
}

.premium-badge-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
}

/* ==========================================================================
   Compare Section
   ========================================================================== */
.compare-section {
    padding: 80px 0;
    background: rgba(255, 255, 255, 0.01);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.table-responsive {
    overflow-x: auto;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    text-align: left;
    min-width: 600px;
}

.compare-table th, .compare-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.compare-table th {
    background: rgba(255, 255, 255, 0.02);
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-primary);
}

.compare-table tr:last-child td {
    border-bottom: none;
}

.check-icon {
    color: #10b981;
}

.x-icon {
    color: #ef4444;
}

/* ==========================================================================
   CTA Form Section
   ========================================================================== */
.cta-section {
    padding: 100px 0;
    position: relative;
}

.cta-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 4rem;
    overflow: hidden;
    position: relative;
}

.cta-container::after {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: 1;
}

@media (max-width: 768px) {
    .cta-container {
        padding: 2rem;
    }
}

.cta-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

@media (max-width: 900px) {
    .cta-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

.cta-text h2 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.benefits-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.benefits-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.benefits-list li i {
    color: #10b981;
    font-size: 1.1rem;
}

.cta-card {
    background: rgba(11, 15, 25, 0.5);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 16px;
    backdrop-filter: blur(8px);
}

.cta-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    text-align: center;
}

.cta-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
}

.form-group input, .form-group select {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 0.875rem 1rem;
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: #6366f1;
    background: rgba(255, 255, 255, 0.05);
}

.success-message {
    text-align: center;
    padding: 2rem 0;
}

.success-message i {
    font-size: 3rem;
    color: #10b981;
    margin-bottom: 1rem;
}

.success-message h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.success-message p {
    color: var(--text-secondary);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
    padding: 80px 0;
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question {
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--text-secondary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 1.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.faq-item.active {
    border-color: rgba(99, 102, 241, 0.3);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: var(--text-primary);
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding-bottom: 1.25rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.main-footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
    background: #070a12;
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    color: var(--text-secondary);
    font-size: 0.875rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

@media (max-width: 600px) {
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.25rem;
    transition: color 0.2s ease;
}

.social-links a:hover {
    color: var(--text-primary);
}