:root {
    --bg: #17161a;
    --surface: #201e24;
    --surface-2: #29262e;
    --text: #ede6d6;
    --text-muted: #9c958a;
    --border: rgba(237, 230, 214, 0.12);
    --border-strong: rgba(237, 230, 214, 0.22);
    --brass: #c9a24b;
    --brass-dim: #8f7638;
    --crimson: #c1443c;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px 32px;
    text-align: center;
}

.staff {
    width: 60px;
    margin: 0 auto 20px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.staff-line {
    height: 1px;
    background: var(--brass-dim);
    opacity: 0.6;
}

h1 {
    font-family: Georgia, 'Iowan Old Style', serif;
    font-weight: 400;
    font-size: 1.8rem;
    letter-spacing: 0.01em;
    margin: 0 0 4px;
    color: var(--text);
}

.tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0 0 32px;
}

.form-group {
    margin-bottom: 18px;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    background: var(--surface-2);
    border: 1px solid var(--border-strong);
    color: var(--text);
    font-size: 0.95rem;
    padding: 10px 12px;
    border-radius: 6px;
    appearance: none;
    box-sizing: border-box;
}
.form-group input:focus {
    outline: 2px solid var(--brass);
    outline-offset: 1px;
}

.primary-btn {
    width: 100%;
    background: var(--brass);
    color: #1a1710;
    border: none;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 13px 18px;
    border-radius: 7px;
    cursor: pointer;
    transition: filter 0.15s ease, transform 0.05s ease;
    margin-top: 8px;
}
.primary-btn:hover { filter: brightness(1.08); }
.primary-btn:active { transform: scale(0.99); }
.primary-btn:disabled {
    background: var(--surface-2);
    color: var(--text-muted);
    cursor: not-allowed;
}

.error {
    color: var(--crimson);
    font-size: 0.85rem;
    margin: 6px 0 12px;
    padding: 8px 12px;
    background: rgba(193, 68, 60, 0.1);
    border-radius: 4px;
    border: 1px solid rgba(193, 68, 60, 0.2);
    text-align: center;
}
.error.hidden { display: none; }

.footer-text {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin: 24px 0 0;
    opacity: 0.6;
}

@media (max-width: 420px) {
    .login-box { padding: 28px 18px; }
    h1 { font-size: 1.5rem; }
}