:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --secondary: #10B981;
    --secondary-hover: #059669;
    --bg-dark: #0F172A;
    --text-main: #F8FAFC;
    --text-muted: #CBD5E1;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --error: #EF4444;
    --transition: all 0.3s ease;
    --font-main: system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.hidden {
    display: none !important;
}

.w-100 {
    width: 100%;
}

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

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Typography */
h1, h2, h3, h4 {
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(to right, #fff, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background: var(--secondary);
    color: #fff;
}
.btn-secondary:hover {
    background: var(--secondary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--text-muted);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.1);
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--primary);
    text-shadow: 0 0 10px rgba(79, 70, 229, 0.5);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-main);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url('assets/backgroundws0.jpg');
    background-size: cover;          /* This stretches it perfectly */
    background-position: center;     /* This keeps the middle of the photo visible */
    background-repeat: no-repeat;    /* This stops the photo from repeating */
    z-index: -2;

}

.hero-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.4), rgba(15, 23, 42, 0.8));
    z-index: -1;
    
}
.hero-content {
    animation: heroEntrance 1.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    padding: 0 1rem;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    text-shadow: 0 0 20px rgba(79, 70, 229, 0.6);
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.hero-tagline {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    color: var(--text-muted);
    margin-bottom: 2rem;
}

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

/* Sections */
.section {
    padding: 6rem 0;
}

/* Animations */
@keyframes heroEntrance {
    0% { opacity: 0; transform: scale(0.9) translateY(30px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, transform;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Courses Grid */
.course-categories {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.course-duration {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Teachers */
.teacher-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.teacher-card {
    text-align: center;
    cursor: default;
}

.teacher-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: 3px solid rgba(255,255,255,0.2);
    object-fit: cover;
}

/* Forms */
.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

input, select, textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-main);
    transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(0, 0, 0, 0.4);
}

.error-msg {
    color: var(--error);
    font-size: 0.8rem;
    display: none;
    margin-top: 0.3rem;
}

input.invalid, select.invalid {
    border-color: var(--error);
}

input.invalid + .error-msg, select.invalid + .error-msg {
    display: block;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 500px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay:not(.hidden) .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: #fff;
}

.modal-body {
    margin: 1.5rem 0;
}

.modal-desc {
    margin-top: 1rem;
    color: var(--text-muted);
}

/* Test View */
#test-view {
    position: fixed;
    inset: 0;
    background: var(--bg-dark);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.test-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(15, 23, 42, 0.9);
    border-bottom: 1px solid var(--glass-border);
}

.test-container {
    max-width: 800px;
    margin: 2rem auto;
    width: 90%;
    padding: 2rem;
}

.question-block {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.question-block h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.options-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.8rem;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-main);
}

.options-group label:hover {
    background: rgba(255,255,255,0.05);
}

.options-group input[type="radio"] {
    width: auto;
    accent-color: var(--primary);
}

/* SVG Chart */
.chart-container {
    width: 200px;
    margin: 0 auto 2rem;
}

.circular-chart {
    display: block;
    margin: 0 auto;
    max-width: 80%;
    max-height: 250px;
}

.circle-bg {
    fill: none;
    stroke: rgba(255,255,255,0.1);
    stroke-width: 3.8;
}

.circle {
    fill: none;
    stroke-width: 2.8;
    stroke-linecap: round;
    transition: stroke-dasharray 1.5s ease-out;
}

.percentage {
    fill: #fff;
    font-family: var(--font-main);
    font-size: 0.5em;
    text-anchor: middle;
    font-weight: bold;
}

.test-english .circle { stroke: var(--primary); }
.test-it .circle { stroke: var(--secondary); }

.result-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Footer */
footer {
    background: rgba(0, 0, 0, 0.5);
    border-top: 1px solid var(--glass-border);
    padding: 3rem 0;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

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

.social-icons a {
    color: var(--text-muted);
    transition: var(--transition);
}

.social-icons a:hover {
    color: var(--primary);
    transform: translateY(-3px);
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(10px);
        padding: 1rem 0;
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.3s ease-in-out;
    }

    .nav-links.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .nav-links li {
        text-align: center;
        padding: 1rem 0;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Print Styles */
@media print {
    body * {
        visibility: hidden;
    }
    #test-view, #test-view * {
        visibility: visible;
    }
    #test-view {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        background: none;
    }
    .test-header, .result-actions {
        display: none !important;
    }
    .glass-panel {
        box-shadow: none;
        border: none;
        background: none;
        color: #000;
    }
    .percentage {
        fill: #000;
    }
    .circle-bg {
        stroke: #eee;
    }
}