/* ============================================
   TATVA EDTECH - MODERN BLUE THEME
   Google Ads 2026 Compliant | SEO Friendly
   ============================================ */

/* CSS Variables - Blue Color Scheme */
:root {
    --primary-blue: #1e3a8a;
    --primary-dark: #0f2b6d;
    --primary-light: #3b82f6;
    --secondary-blue: #2563eb;
    --accent-blue: #06b6d4;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-dark: #0f172a;
    --text-gray: #475569;
    --text-light: #64748b;
    --border-light: #e2e8f0;
    --shadow-sm: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 30px 40px -15px rgba(30, 58, 138, 0.2);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-xl: 48px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background: var(--bg-white);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; font-weight: 800; }
h2 { font-size: 2.5rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }

@media (max-width: 768px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.5rem; }
}

/* Section Spacing */
.section-padding {
    padding: 80px 0;
}

@media (max-width: 768px) {
    .section-padding {
        padding: 50px 0;
    }
}

.bg-soft {
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
}

/* ============================================
   BUTTONS - Blue Theme
   ============================================ */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--radius-xl);
    border: none;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(30, 58, 138, 0.4);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: white;
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    font-weight: 600;
    padding: 12px 30px;
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.btn-outline-primary:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   NAVBAR - Glassmorphism Blue Theme
   ============================================ */
.sticky-header {
    transition: var(--transition);
    background: transparent;
    padding: 16px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.sticky-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
}

.navbar-brand {
    font-size: 1.8rem;
    font-weight: 800;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.brand-text {
    color: var(--primary-blue);
}

.brand-highlight {
    color: var(--secondary-blue);
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    margin: 0 8px;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-cta {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: white !important;
    padding: 10px 24px !important;
    border-radius: var(--radius-xl);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-cta::after {
    display: none;
}

/* ============================================
   HERO SECTION - Modern Blue Gradient
   ============================================ */
.hero-slide {
    background: linear-gradient(135deg, #eef2ff 0%, #ffffff 50%, #f0f9ff 100%);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-slide::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 140%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.badge-blue {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: white;
    padding: 8px 20px;
    border-radius: var(--radius-xl);
    font-weight: 600;
    display: inline-block;
    margin-bottom: 20px;
}

.stat-badge {
    background: var(--bg-white);
    padding: 8px 18px;
    border-radius: var(--radius-xl);
    font-weight: 600;
    color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.stat-badge i {
    color: var(--secondary-blue);
}

/* Enquiry Card */
.enquiry-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

/* ============================================
   CARDS - Premium Blue Design
   ============================================ */
.premium-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 24px 16px;
    transition: var(--transition);
    border: 1px solid var(--border-light);
    height: 100%;
    text-align: center;
}

.premium-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--secondary-blue);
}

.icon-circle {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.08), rgba(59, 130, 246, 0.08));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.premium-card:hover .icon-circle {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
}

.premium-card:hover .icon-circle i {
    color: white !important;
}

.icon-circle i {
    font-size: 28px;
    color: var(--primary-blue);
    transition: var(--transition);
}

/* ============================================
   ADVANTAGE ITEMS
   ============================================ */
.advantage-item {
    background: var(--bg-white);
    padding: 24px 12px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-light);
    height: 100%;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--secondary-blue);
}

.advantage-item i {
    font-size: 2.5rem;
    color: var(--secondary-blue);
    margin-bottom: 15px;
}

/* ============================================
   PARTNER GRID
   ============================================ */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px 30px;
    background: var(--bg-white);
    padding: 30px 25px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.partner-item {
    font-weight: 600;
    color: var(--text-dark);
    padding: 8px 16px;
    transition: var(--transition);
    cursor: pointer;
}

.partner-item i {
    color: var(--secondary-blue);
    margin-right: 8px;
}

.partner-item:hover {
    color: var(--primary-blue);
    transform: translateY(-2px);
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonial-slider .premium-card {
    text-align: left;
}

.testimonial-slider .premium-card i.fa-star {
    color: #fbbf24;
    margin-right: 2px;
}

/* ============================================
   FAQ ACCORDION - Blue Theme
   ============================================ */
.accordion-item {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm) !important;
    margin-bottom: 16px;
    overflow: hidden;
}

.accordion-button {
    background: var(--bg-white);
    font-weight: 600;
    color: var(--text-dark);
    padding: 20px 24px;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.05), rgba(59, 130, 246, 0.05));
    color: var(--primary-blue);
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--secondary-blue);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ============================================
   FOOTER - Dark Blue Theme
   ============================================ */
.footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: rgba(255, 255, 255, 0.85);
    padding: 60px 0 20px;
    margin-top: 60px;
}

.footer-brand {
    font-size: 1.8rem;
    font-weight: 800;
    color: white;
}

.footer-title {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent-blue);
    border-radius: 3px;
}

.footer-links, .footer-contact {
    list-style: none;
    padding: 0;
}

.footer-links li, .footer-contact li {
    margin-bottom: 12px;
}

.footer-links a, .footer-contact a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover, .footer-contact a:hover {
    color: white;
    padding-left: 5px;
}

.footer-links i, .footer-contact i {
    margin-right: 8px;
    font-size: 12px;
    color: var(--accent-blue);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background: var(--accent-blue);
    transform: translateY(-3px);
    color: white;
}

.footer-hr {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 30px 0 20px;
}

.copyright, .disclaimer {
    font-size: 0.85rem;
    opacity: 0.7;
}

/* ============================================
   FLOATING WIDGETS
   ============================================ */
.floating-widgets {
    position: fixed;
    bottom: 100px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.widget-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.widget-btn.whatsapp {
    background: #25D366;
}

.widget-btn.phone {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
}

.widget-btn:hover {
    transform: scale(1.1);
    color: white;
}

/* Sticky Mobile CTA */
.sticky-mobile-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    padding: 12px 16px;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.1);
    z-index: 998;
    gap: 12px;
    border-top: 1px solid var(--border-light);
}

@media (max-width: 768px) {
    .sticky-mobile-cta {
        display: flex;
    }
    .floating-widgets {
        bottom: 85px;
    }
}

/* ============================================
   MODAL STYLES
   ============================================ */
.modal-content {
    border-radius: var(--radius-lg);
    border: none;
}

.modal-header {
    border-bottom: 1px solid var(--border-light);
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 768px) {
    .partner-grid {
        gap: 10px;
        padding: 20px 15px;
    }
    
    .partner-item {
        font-size: 0.85rem;
        white-space: nowrap;
    }
    
    .enquiry-card {
        padding: 20px;
        margin-top: 30px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .sticky-header, .floating-widgets, .sticky-mobile-cta, .footer {
        display: none;
    }
}

/* ============================================
   CONTENT PAGES STYLES (Privacy, Terms, Disclaimer)
   ============================================ */
.content-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.content-card h2 {
    font-size: 1.75rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.content-card h2:first-child {
    margin-top: 0;
}

.content-card h3 {
    font-size: 1.35rem;
    margin-top: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.content-card p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.content-card ul, .content-card ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.content-card li {
    color: var(--text-gray);
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.content-card .alert {
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
}

@media (max-width: 768px) {
    .content-card {
        padding: 20px;
    }
    
    .content-card h2 {
        font-size: 1.5rem;
    }
}

/* Contact Page Specific */
.contact-info .icon-circle {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.08), rgba(59, 130, 246, 0.08));
}

/* Services Page */
.premium-card ul {
    list-style: none;
    padding-left: 0;
}

.premium-card ul li {
    font-size: 0.9rem;
    margin-bottom: 8px;
}