:root {
    color-scheme: dark;
    --bg: #07111f;
    --surface: #0d1b2e;
    --surface-2: #13243a;
    --text: #eef5ff;
    --muted: #91a3ba;
    --primary: #39d6a6;
    --primary-hover: #5ce5bb;
    --danger: #ff7b85;
    --warning: #ffc857;
    --border: rgba(255, 255, 255, 0.1);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at 18% 15%, rgba(31, 124, 229, 0.18), transparent 35rem),
        radial-gradient(circle at 85% 75%, rgba(57, 214, 166, 0.12), transparent 32rem),
        var(--bg);
    color: var(--text);
}

.auth-page {
    display: grid;
    place-items: center;
    padding: 1.5rem;
}

.auth-card {
    width: min(100%, 28rem);
    padding: clamp(1.5rem, 5vw, 2.5rem);
    border: 1px solid var(--border);
    border-radius: 1.25rem;
    background: rgba(13, 27, 46, 0.92);
    box-shadow: 0 1.5rem 5rem rgba(0, 0, 0, 0.32);
    backdrop-filter: blur(16px);
}

.brand-mark {
    display: grid;
    width: 3rem;
    height: 3rem;
    margin-bottom: 1.5rem;
    place-items: center;
    border-radius: 0.85rem;
    background: var(--primary);
    color: #042319;
    font-weight: 900;
}

.eyebrow {
    margin: 0 0 0.4rem;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 6vw, 2.7rem);
    letter-spacing: -0.04em;
}

.muted {
    color: var(--muted);
    line-height: 1.6;
}

.stack {
    display: grid;
    gap: 1.1rem;
    margin-top: 1.75rem;
}

label {
    display: grid;
    gap: 0.5rem;
    color: #cad7e7;
    font-size: 0.9rem;
    font-weight: 650;
}

input {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.7rem;
    outline: none;
    background: var(--surface-2);
    color: var(--text);
    font: inherit;
}

input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(57, 214, 166, 0.14);
}

button {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 0;
    border-radius: 0.7rem;
    cursor: pointer;
    background: var(--primary);
    color: #042319;
    font: inherit;
    font-weight: 800;
}

button:hover {
    background: var(--primary-hover);
}

.button-secondary {
    margin-top: 1rem;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text);
}

.alert {
    margin: 1rem 0;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.7rem;
    background: var(--surface-2);
    line-height: 1.4;
}

.alert-danger {
    border-color: rgba(255, 123, 133, 0.35);
    color: #ffc5ca;
}

.alert-warning {
    border-color: rgba(255, 200, 87, 0.35);
    color: #ffe2a0;
}

code {
    color: var(--primary);
}