/* Base Config */
@charset "UTF-8";
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* Core Variables */
:root {
    /* Colors */
    --primary: #6610f2;
    --secondary: #4f46e5;
    --accent: #0dcaf0;
    --success: #26c207;
    --warning: #ffc107;
    --danger: #e0061c;
    --dark: #0a0a1a;
    --light: #ffffff;

    /* Gradients */
    --primary-gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --accent-gradient: linear-gradient(45deg, var(--accent), var(--secondary));
    
    /* Effects */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --transition: all 0.3s ease;
    
    /* Text Colors */
    --text-primary: var(--light);
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* Border Colors */
    --border-light: rgba(255, 255, 255, 0.1);
    --border-primary: rgba(102, 16, 242, 0.2);
}

/* Core Optimizations */
* {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-synthesis: none;
}

/* Base Elements */
html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    background: linear-gradient(135deg, var(--dark), #111132);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

/* Icon System */
[class^="icon-"],
[class*=" icon-"] {
    font-family: 'Font Awesome 5 Free', 'Font Awesome 5 Brands';
    font-weight: 900;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
}

/* Header & Navigation */
.main-header {
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-light);
    position: fixed;
    width: 100%;
    z-index: 1000;
    padding: 0;
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    padding: 1rem 2rem;
    height: 80px;
}

.logo-section {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
}

.logo {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    text-decoration: none;
    gap: 0.5rem;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-dot {
    font-size: 2.2rem;
    color: var(--primary);
    margin-left: -0.3rem;
    -webkit-animation: pulse 2s infinite;
            animation: pulse 2s infinite;
}

/* Navigation */
.main-nav {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
}

.nav-list {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 3rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    padding: 0.5rem 0;
    position: relative;
    -webkit-transition: var(--transition);
    transition: var(--transition);
}

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

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

.nav-link:hover::after {
    width: 100%;
}

/* Header Actions */
.header-actions {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    gap: 1rem;
}

.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    font-weight: 500;
    -webkit-transition: var(--transition);
    transition: var(--transition);
}

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

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

.btn-outline-light:hover,
.btn-outline-warning:hover {
    -webkit-transform: translateY(-2px);
            transform: translateY(-2px);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
}

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

.mobile-menu-btn {
    display: none;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--light);
    -webkit-transition: var(--transition);
    transition: var(--transition);
}
/* Hero Section */
.hero-section {
    min-height: 100vh;
    position: relative;
    padding: 120px 0 40px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--dark) 0%, #1a1a3a 100%);
}

.tech-background {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.gradient-mesh {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 50% 50%, rgba(102, 16, 242, 0.1), transparent 70%),
        radial-gradient(circle at 80% 20%, rgba(79, 70, 229, 0.1), transparent 50%);
    -webkit-filter: blur(60px);
            filter: blur(60px);
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

.hero-content {
    padding-right: 2rem;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--light);
}

.class-room-banner {
    display: inline-block;
    background: var(--primary-gradient);
    padding: 1rem 2rem;
    border-radius: 12px;
    margin: 1rem 0;
    font-size: clamp(2rem, 4vw, 3rem);
    -webkit-transform: skew(-5deg);
            transform: skew(-5deg);
    -webkit-box-shadow: 0 10px 30px rgba(102, 16, 242, 0.2);
            box-shadow: 0 10px 30px rgba(102, 16, 242, 0.2);
    -webkit-transition: var(--transition);
    transition: var(--transition);
}

.class-room-banner:hover {
    -webkit-transform: skew(-5deg) translateY(-5px);
            transform: skew(-5deg) translateY(-5px);
    -webkit-box-shadow: 0 15px 40px rgba(102, 16, 242, 0.3);
            box-shadow: 0 15px 40px rgba(102, 16, 242, 0.3);
}

.hero-quote {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    padding-left: 1rem;
    border-left: 3px solid var(--primary);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
    max-width: 600px;
}

/* Feature Preview */
.feature-preview {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    -webkit-box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.feature-preview img {
    width: 100%;
    border-radius: 24px;
    -webkit-transition: var(--transition);
    transition: var(--transition);
}

.feature-preview:hover img {
    -webkit-transform: scale(1.02);
            transform: scale(1.02);
}

/* Stats Cards */
.feature-stats {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    right: 2rem;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    gap: 1rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
    padding: 1rem;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    text-align: center;
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    -webkit-transition: var(--transition);
    transition: var(--transition);
}

.stat-card:hover {
    -webkit-transform: translateY(-5px);
            transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff, #e0e0e0);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Modal Styles */
.modal-content {
    background: rgba(10, 10, 26, 0.95);
    -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
    border: 1px solid var(--border-primary);
    border-radius: 24px;
    -webkit-box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.modal-header {
    border-bottom: 1px solid rgba(102, 16, 242, 0.1);
    padding: 1.5rem;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    gap: 1rem;
    background: rgba(102, 16, 242, 0.05);
}

.modal-header i {
    font-size: 2rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    -webkit-filter: drop-shadow(0 0 10px rgba(102, 16, 242, 0.3));
            filter: drop-shadow(0 0 10px rgba(102, 16, 242, 0.3));
}
/* Form Styles */
.modal-content .form-control,
.form-control {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    padding: 1rem;
    color: var(--light);
    -webkit-transition: var(--transition);
    transition: var(--transition);
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
    -webkit-box-shadow: 0 0 0 4px rgba(102, 16, 242, 0.1);
            box-shadow: 0 0 0 4px rgba(102, 16, 242, 0.1);
    outline: none;
}

.form-control::-webkit-input-placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-control::-moz-placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-control:-ms-input-placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-control::-ms-input-placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

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

/* Checkbox */
.form-check {
    padding-left: 1.8rem;
    margin-bottom: 1rem;
}

.form-check-input {
    width: 1.2rem;
    height: 1.2rem;
    margin-left: -1.8rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    -webkit-transition: var(--transition);
    transition: var(--transition);
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    cursor: pointer;
}

/* Button Styles */
.tech-btn {
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    -webkit-transition: var(--transition);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.tech-btn.primary {
    background: var(--primary-gradient);
    color: var(--light);
    border: none;
}

.tech-btn.outline {
    background: transparent;
    border: 2px solid rgba(102, 16, 242, 0.5);
    color: var(--light);
}

.tech-btn:hover {
    -webkit-transform: translateY(-3px);
            transform: translateY(-3px);
    -webkit-box-shadow: 0 10px 20px rgba(102, 16, 242, 0.2);
            box-shadow: 0 10px 20px rgba(102, 16, 242, 0.2);
}

/* Partners Section */
.partners-section {
    padding: 100px 0;
    background: -webkit-gradient(linear, left top, left bottom, from(var(--dark)), to(#0f1642));
    background: linear-gradient(180deg, var(--dark) 0%, #0f1642 100%);
    position: relative;
    overflow: hidden;
}

.partner-slider {
    position: relative;
    padding: 20px 0;
}

.swiper-container {
    padding: 20px;
    overflow: hidden;
}

.partner-card {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
    border: 1px solid var(--border-primary);
    border-radius: 24px;
    padding: 2rem;
    -webkit-transition: var(--transition);
    transition: var(--transition);
    height: 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    text-align: center;
}

.partner-card:hover {
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
    border-color: rgba(102, 16, 242, 0.3);
    -webkit-box-shadow: 0 10px 30px rgba(102, 16, 242, 0.1);
            box-shadow: 0 10px 30px rgba(102, 16, 242, 0.1);
}

.partner-image {
    width: 180px;
    height: 180px;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
}

.partner-image img {
    max-width: 100%;
    height: auto;
    -webkit-filter: brightness(0) invert(1);
            filter: brightness(0) invert(1);
    -webkit-transition: var(--transition);
    transition: var(--transition);
}

.partner-card:hover .partner-image img {
    -webkit-filter: brightness(1) invert(0);
            filter: brightness(1) invert(0);
}

/* Animations */
@-webkit-keyframes fadeIn {
    from { opacity: 0; -webkit-transform: translateY(20px); transform: translateY(20px); }
    to { opacity: 1; -webkit-transform: translateY(0); transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; -webkit-transform: translateY(20px); transform: translateY(20px); }
    to { opacity: 1; -webkit-transform: translateY(0); transform: translateY(0); }
}

.fade-in {
    -webkit-animation: fadeIn 0.5s ease forwards;
            animation: fadeIn 0.5s ease forwards;
}
/* Responsive Styles */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .class-room-banner {
        font-size: 2.5rem;
    }
    
    .nav-list {
        gap: 2rem;
    }
}

@media (max-width: 992px) {
    .hero-content {
        padding-right: 0;
        margin-bottom: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .header-actions .btn {
        padding: 0.6rem 1.2rem;
    }
    
    .partner-image {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-quote {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-cta {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
    }
    
    .tech-btn {
        width: 100%;
        text-align: center;
    }
    
    .main-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
    }
    
    .header-actions .btn-outline-light {
        display: none;
    }
    
    .header-container {
        height: 70px;
        padding: 0.8rem 1.5rem;
    }
    
    .feature-stats {
        position: relative;
        margin-top: 1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 1rem;
    }
    
    .modal-dialog {
        margin: 1rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .btn {
        width: 100%;
        margin: 0.5rem 0;
    }
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 26, 0.98);
    padding: 1rem;
    -webkit-transform: translateY(-100%);
            transform: translateY(-100%);
    -webkit-transition: var(--transition);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

.mobile-nav.active {
    -webkit-transform: translateY(0);
            transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-nav .nav-list {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 1rem;
    padding: 1rem;
}

/* Utility Classes */
.floating-element {
    -webkit-animation: float 6s ease-in-out infinite;
            animation: float 6s ease-in-out infinite;
}

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

.glass-card {
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
}

/* Form Autofill Fix */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    -webkit-text-fill-color: var(--light) !important;
    -webkit-box-shadow: 0 0 0 30px rgba(255, 255, 255, 0.05) inset !important;
    -webkit-transition: background-color 5000s ease-in-out 0s;
    transition: background-color 5000s ease-in-out 0s;
}

/* Print Styles */
@media print {
    body {
        background: none;
        color: #000;
    }
    
    .modal,
    .btn,
    .nav-list {
        display: none !important;
    }
    
    .container {
        width: 100%;
        padding: 0;
        margin: 0;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    ::before,
    ::after {
        -webkit-animation-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
        -webkit-animation-iteration-count: 1 !important;
                animation-iteration-count: 1 !important;
        -webkit-transition-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}