/* 
   SchoolHub Premium Landing Page CSS - V2 (High Contrast Edition)
   Aesthetics: Ultra-Modern, Neon Glow, Glassmorphism, Maximum Readability
*/

:root {
    --primary: #818cf8;
    --primary-bright: #a5b4fc;
    --secondary: #22d3ee;
    --accent: #f472b6;
    --dark-deep: #020617;
    --card-bg: rgba(30, 41, 59, 0.5);
    --glass-border: rgba(255, 255, 255, 0.15);
    --text-main: #ffffff;
    --text-muted: #e2e8f0;
    --text-dark: #0f172a;
}

body {
    background-color: var(--dark-deep);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    padding: 24px 0;
    transition: all 0.4s;
}

.navbar.scrolled {
    background: rgba(2, 6, 23, 0.9);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    border-bottom: 1px solid var(--glass-border);
}

.navbar-brand {
    font-weight: 900;
    font-size: 1.6rem;
    color: #fff !important;
}

.nav-link {
    font-weight: 600;
    font-size: 0.85rem;
    color: #ffffff !important;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    opacity: 0.9;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.nav-link:hover {
    opacity: 1;
    color: var(--secondary) !important;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.3) 0%, transparent 60%),
                var(--dark-deep);
}

.hero-image-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: url('../hero-bg.png') no-repeat center right;
    background-size: contain;
    opacity: 0.3;
    z-index: 1;
    filter: brightness(0.5) saturate(1.2);
}

.hero h1 {
    font-size: 4.8rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 25px;
    color: #fff;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.35rem;
    color: #ffffff; /* Maximum contrast */
    max-width: 650px;
    line-height: 1.7;
    margin-bottom: 45px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.badge-ai {
    background: rgba(99, 102, 241, 0.3);
    border: 1px solid var(--primary);
    color: #fff;
    padding: 10px 20px;
    border-radius: 100px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* HIGH CONTRAST BUTTONS */
.btn-premium {
    background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    color: #fff !important;
    padding: 18px 36px;
    border-radius: 16px;
    font-weight: 800;
    border: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.5);
    transition: all 0.3s;
}

.btn-premium:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 50px rgba(99, 102, 241, 0.7);
    filter: brightness(1.1);
}

.btn-outline-premium {
    background: rgba(255,255,255,0.1);
    border: 2px solid rgba(255,255,255,0.4);
    color: #fff !important;
    padding: 18px 36px;
    border-radius: 16px;
    font-weight: 800;
    transition: all 0.3s;
}

.btn-outline-premium:hover {
    background: #fff;
    color: var(--dark-deep) !important;
}

/* Feature Cards */
.glass-card {
    background: rgba(15, 23, 42, 0.8); /* Darker and more opaque */
    border: 1px solid var(--glass-border);
    border-radius: 28px;
    padding: 45px;
    height: 100%;
    transition: all 0.4s;
}

.glass-card:hover {
    border-color: var(--secondary);
    background: rgba(30, 41, 59, 0.8);
    transform: translateY(-10px);
}

.glass-card h4 {
    color: #fff;
    font-weight: 800;
    margin-bottom: 20px;
}

.glass-card p {
    color: #e2e8f0; /* Brighter for readability */
    font-size: 1.05rem;
    line-height: 1.6;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 25px;
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

/* Stats */
.section-padding { padding: 120px 0; }

.section-title {
    font-size: 3.5rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 60px;
}

.stat-number {
    font-size: 4rem;
    font-weight: 900;
    color: #fff;
    display: block;
}

.stat-label {
    color: var(--secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Footer */
footer {
    background: #020617;
    border-top: 1px solid var(--glass-border);
    padding: 80px 0 40px;
}

footer h6 { color: #fff; font-weight: 800; }
footer a { color: var(--text-muted); transition: 0.3s; }
footer a:hover { color: #fff; }

/* Mockup */
.mockup-container {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    padding: 15px;
    box-shadow: 0 50px 100px rgba(0,0,0,0.8);
}

@media (max-width: 991px) {
    .hero h1 { font-size: 3.5rem; }
    .hero-image-bg { display: none; }
}