@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    color-scheme: dark;
    font-family: 'Inter', sans-serif;
    --bg: #020617;
    --surface: rgba(10, 16, 42, 0.75);
    --surface-strong: rgba(6, 12, 35, 0.95);
    --border: rgba(255, 255, 255, 0.1);
    --text: #e5e7eb;
    --muted: #94a3b8;
    --primary: #8b5cf6;
    --primary-soft: rgba(139, 92, 246, 0.18);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at top left, rgba(139, 92, 246, 0.16), transparent 22%),
                radial-gradient(circle at 80% 10%, rgba(56, 189, 248, 0.12), transparent 20%),
                linear-gradient(180deg, #040912 0%, #020617 100%);
    color: var(--text);
    font-family: 'Inter', sans-serif;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 15% 10%, rgba(139, 92, 246, 0.20), transparent 18%),
                radial-gradient(circle at 85% 20%, rgba(56, 189, 248, 0.12), transparent 16%);
    pointer-events: none;
    z-index: -1;
}

button,
a {
    font: inherit;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: #a78bfa;
}

img {
    max-width: 100%;
    display: block;
}

.site-shell {
    max-width: 1200px;
}

.hero-section {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem 0;
}

.hero-copy h1 {
    font-size: clamp(2.75rem, 5vw, 4.5rem);
    line-height: 1.03;
    letter-spacing: -0.04em;
    margin: 0.4rem 0 1.25rem;
}

.hero-copy .eyebrow,
.section-tag {
    display: inline-flex;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    font-size: 0.78rem;
    color: #94a3b8;
    margin-bottom: 1rem;
}

.hero-description,
.section-subtitle,
.hero-copy p,
.feature-card p,
.cta-panel p {
    color: var(--muted);
    line-height: 1.75;
}

.top-branding {
    display: flex;
    justify-content: center;
    padding: 0.85rem 1rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-branding a {
    color: rgba(226, 232, 240, 0.94);
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    text-decoration: none;
    transition: color 0.25s ease, text-shadow 0.25s ease;
}

.brand-highlight {
    background: linear-gradient(90deg, rgba(139,92,246,0.95), rgba(96,165,250,0.95));
    -webkit-background-clip: text;
    color: transparent;
    text-decoration: underline transparent;
    text-underline-offset: 4px;
    transition: text-decoration-color 0.25s ease, opacity 0.25s ease;
}

.top-branding a:hover .brand-highlight {
    text-decoration-color: rgba(139, 92, 246, 0.8);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.75rem;
}

.hero-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    text-align: center;
}

.hero-logo-img {
    height: 80px;
    width: auto;
    border-radius: 1rem;
}

.hero-logo p {
    margin: 0;
    font-size: 0.95rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #94a3b8;
}

.btn-primary,
.cta-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    padding: 0.95rem 1.8rem;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(139,92,246,0.95), rgba(56,189,248,0.95));
    color: #020617;
    font-weight: 600;
    box-shadow: 0 18px 50px rgba(139, 92, 246, 0.18);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn-primary:hover,
.cta-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 28px 80px rgba(139, 92, 246, 0.22);
}

.btn-secondary,
.secondary-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    padding: 0.95rem 1.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text);
    transition: transform 0.25s ease, background 0.25s ease;
}

.btn-secondary:hover,
.secondary-link:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.08);
}

.glass-card {
    background: rgba(6, 10, 29, 0.75);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.20);
}

.hero-card {
    position: relative;
    overflow: hidden;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    padding: 0.75rem 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.92rem;
}

.feature-grid,
.pricing-grid {
    display: grid;
    gap: 1.5rem;
}

.feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
    padding: 2rem;
    min-height: 260px;
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    display: grid;
    place-items: center;
    border-radius: 1rem;
    background: rgba(139, 92, 246, 0.12);
    color: #a78bfa;
    font-size: 1.35rem;
    margin-bottom: 1.25rem;
}

.feature-card h3,
section h2 {
    font-size: 1.5rem;
    margin-bottom: 0.9rem;
}

.section-heading {
    display: grid;
    justify-items: start;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.section-heading.text-center {
    justify-items: center;
    text-align: center;
}

.price-block {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin: 1.5rem 0;
}

.price-block span {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}

.price-block small {
    color: var(--muted);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.9rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text);
}

.feature-list li::before {
    content: '•';
    color: var(--primary);
}

.pill {
    display: inline-flex;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    background: rgba(139, 92, 246, 0.14);
    color: #d8b4fe;
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.cta-panel {
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.auth-panel label,
.hero-panel label {
    color: #cbd5e1;
}

input,
textarea {
    width: 100%;
    font: inherit;
}

input:focus,
textarea:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15);
}

.auth-panel input,
.auth-panel textarea,
.hero-panel textarea {
    background: rgba(7, 12, 27, 0.9);
    color: var(--text);
}

.custom-footer,
custom-footer {
    position: relative;
}

custom-navbar {
    position: sticky;
    top: 0;
    z-index: 60;
    width: 100%;
    display: block;
    background: rgba(2, 6, 23, 0.80);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

custom-navbar::before {
    content: 'SmartExamToolkit by AshX Labs';
    display: block;
    width: 100%;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(226, 232, 240, 0.72);
    letter-spacing: 0.13em;
    padding: 0.55rem 0;
    background: rgba(6, 12, 30, 0.7);
}

#fallback-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: rgba(2, 6, 23, 0.88);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0 0 1.5rem 1.5rem;
}

.fallback-nav a {
    color: var(--text);
    font-weight: 500;
    transition: color 0.25s ease;
}

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

.nav-logo {
    font-weight: 700;
    font-size: 1.05rem;
}

.cta-link {
    background: linear-gradient(135deg, rgba(139,92,246,0.95), rgba(56,189,248,0.95));
    color: #020617 !important;
    padding: 0.8rem 1.25rem;
    border-radius: 999px;
    font-weight: 600;
}

.fallback-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-size: 0.8rem;
    color: #94a3b8;
}

@media (max-width: 960px) {
    .hero-section {
        grid-template-columns: 1fr;
    }
    .hero-visual {
        order: -1;
    }
    .feature-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .site-shell {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .top-branding {
        padding: 0.75rem 0.8rem;
    }
    .top-branding a {
        font-size: 0.88rem;
    }
    .hero-actions {
        flex-direction: column;
    }
    .hero-logo {
        flex-direction: column;
    }
    .hero-logo-img {
        height: 60px;
    }
    .hero-copy h1 {
        font-size: 2.8rem;
    }
    .hero-badge {
        font-size: 0.88rem;
    }
    .fallback-nav {
        flex-direction: column;
        align-items: stretch;
    }
    .fallback-links {
        justify-content: space-between;
    }
    .auth-panel,
    .glass-card {
        border-radius: 1.5rem;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}