:root {
    --color-bg: #faf8f6;
    --color-surface: #ffffff;
    --color-text: #2a2422;
    --color-muted: #756b66;
    --color-accent: #7a1f3d;      /* deep maroon — primary actions */
    --color-accent-dark: #5e1730;
    --color-gold: #b8873a;        /* secondary accent */
    --color-danger: #b3261e;      /* destructive actions only (delete/void) */
    --color-border: #e4dedb;
    --radius: 10px;
    --shadow-elevated: 0 2px 8px rgba(42, 36, 34, 0.12);
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #1c1817;
        --color-surface: #262120;
        --color-text: #f2ece9;
        --color-muted: #b3a9a4;
        --color-border: #3a3331;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
}

.auth-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.auth-card {
    width: 100%;
    max-width: 380px;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-elevated);
    padding: 2rem;
}

.auth-card h1 {
    margin: 0 0 0.25rem;
    color: var(--color-accent);
    font-size: 1.5rem;
}

.auth-card p.tagline {
    margin: 0 0 1.5rem;
    color: var(--color-muted);
    font-size: 0.9rem;
}

label {
    display: block;
    font-size: 0.85rem;
    margin: 0.75rem 0 0.25rem;
    color: var(--color-muted);
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.7rem 0.8rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 44px;
}

button {
    min-height: 44px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.05s ease, background 0.15s ease;
}

button:active { transform: scale(0.98); }

.btn-primary {
    width: 100%;
    margin-top: 1.5rem;
    background: var(--color-accent);
    color: #fff;
    border: none;
    box-shadow: var(--shadow-elevated);
}
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.btn-secondary {
    background: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

.btn-danger {
    background: var(--color-danger);
    color: #fff;
    border: none;
}

.error-text {
    color: var(--color-danger);
    font-size: 0.85rem;
    min-height: 1.2em;
    margin-top: 0.75rem;
}

[hidden] { display: none !important; }