:root {
    color-scheme: dark;
    --background: #07111f;
    --surface: rgba(15, 28, 48, 0.88);
    --surface-border: rgba(148, 163, 184, 0.2);
    --text: #f8fafc;
    --muted: #a7b4c7;
    --accent: #38bdf8;
    --accent-secondary: #6366f1;
    --success: #34d399;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 15% 20%, rgba(56, 189, 248, 0.16), transparent 34rem),
        radial-gradient(circle at 85% 80%, rgba(99, 102, 241, 0.18), transparent 36rem),
        var(--background);
}

.page-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem 1.25rem;
}

.profile-card {
    position: relative;
    width: min(100%, 700px);
    overflow: hidden;
    padding: clamp(2rem, 5vw, 4rem);
    border: 1px solid var(--surface-border);
    border-radius: 1.5rem;
    background: var(--surface);
    box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.34);
    backdrop-filter: blur(16px);
}

.accent-bar {
    position: absolute;
    inset: 0 0 auto;
    height: 5px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
}

.eyebrow {
    margin: 0 0 1rem;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(2.4rem, 8vw, 5rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.subject {
    max-width: 34rem;
    margin: 1.25rem 0 0;
    color: var(--muted);
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    line-height: 1.6;
}

.student-data {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin: 2.75rem 0 0;
}

.data-item {
    padding: 1.25rem;
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 1rem;
    background: rgba(2, 6, 23, 0.35);
}

.data-item dt {
    margin-bottom: 0.55rem;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.data-item dd {
    margin: 0;
    font-size: clamp(1.35rem, 4vw, 2rem);
    font-weight: 750;
    letter-spacing: -0.02em;
}

.card-footer {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-top: 2rem;
    color: var(--muted);
    font-size: 0.9rem;
}

.status-dot {
    width: 0.65rem;
    height: 0.65rem;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0.9rem rgba(52, 211, 153, 0.75);
}

@media (max-width: 560px) {
    .profile-card {
        padding: 2rem 1.35rem;
        border-radius: 1.15rem;
    }

    .student-data {
        grid-template-columns: 1fr;
        margin-top: 2rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
    }
}