:root {
    --accent-rgb: 201, 162, 39;
    --gold: #c9a227;
    --gold-light: #e4c04a;
    --gold-dark: #a6851f;
    --gold-a05: rgba(var(--accent-rgb), 0.05);
    --gold-a08: rgba(var(--accent-rgb), 0.08);
    --gold-a10: rgba(var(--accent-rgb), 0.1);
    --gold-a12: rgba(var(--accent-rgb), 0.12);
    --gold-a14: rgba(var(--accent-rgb), 0.14);
    --gold-a15: rgba(var(--accent-rgb), 0.15);
    --gold-a18: rgba(var(--accent-rgb), 0.18);
    --gold-a20: rgba(var(--accent-rgb), 0.2);
    --gold-a22: rgba(var(--accent-rgb), 0.22);
    --gold-a25: rgba(var(--accent-rgb), 0.25);
    --gold-a28: rgba(var(--accent-rgb), 0.28);
    --gold-a30: rgba(var(--accent-rgb), 0.3);
    --gold-a35: rgba(var(--accent-rgb), 0.35);
    --gold-a38: rgba(var(--accent-rgb), 0.38);
    --gold-a40: rgba(var(--accent-rgb), 0.4);
    --gold-a45: rgba(var(--accent-rgb), 0.45);
    --gold-a50: rgba(var(--accent-rgb), 0.5);
    --gold-a55: rgba(var(--accent-rgb), 0.55);
    --gold-a60: rgba(var(--accent-rgb), 0.6);
    --gold-a85: rgba(var(--accent-rgb), 0.85);
    --gradient-gold: linear-gradient(135deg, var(--gold-dark) 0%, var(--gold) 45%, var(--gold-light) 100%);
    --star-color: var(--gold-light);
    --star-glow: rgba(var(--accent-rgb), 0.45);
    --dark: #0d0d0d;
    --dark-2: #1a1a1a;
    --dark-3: #252525;
    --text-muted: #9a9a9a;
    --white: #ffffff;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Barlow', 'Segoe UI', sans-serif;
    --error: #f87171;
    --success: #86efac;
}

* { box-sizing: border-box; }

body.auth-page {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-body);
    background: var(--dark);
    color: var(--white);
}

.auth-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr;
}

@media (min-width: 992px) {
    .auth-shell {
        grid-template-columns: 1fr 1fr;
    }
}

/* Panel marca */
.auth-brand-panel {
    position: relative;
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background:
        linear-gradient(135deg, rgba(13, 13, 13, 0.92) 0%, rgba(13, 13, 13, 0.75) 100%),
        url('https://images.unsplash.com/photo-1585747860715-2ba37e788b70?w=1200&q=80') center/cover no-repeat;
    border-bottom: 1px solid var(--gold-a15);
}

@media (min-width: 992px) {
    .auth-brand-panel {
        padding: 3rem;
        border-bottom: none;
        border-right: 1px solid var(--gold-a12);
    }
}

.auth-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    letter-spacing: 0.02em;
}

.auth-logo span {
    color: var(--gold);
}

.auth-label {
    display: inline-block;
    margin-top: 1.5rem;
    font-size: 0.68rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gold);
}

.auth-brand-panel h1 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    line-height: 1.2;
    margin: 0.75rem 0 1rem;
    max-width: 420px;
}

.auth-brand-panel > p {
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.65;
    max-width: 400px;
    margin: 0 0 2rem;
}

.auth-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
}

.auth-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.45rem 0;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.92rem;
}

.auth-features i {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--gold-a12);
    color: var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.auth-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.2s;
}

.auth-back-link:hover {
    color: var(--gold);
}

/* Panel formulario */
.auth-form-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.25rem;
    background: var(--dark);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: linear-gradient(160deg, var(--dark-2) 0%, var(--dark) 100%);
    border: 1px solid var(--gold-a20);
    border-radius: 20px;
    padding: 2rem 1.75rem;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.auth-card-head {
    text-align: center;
    margin-bottom: 1.75rem;
}

.auth-card-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    border-radius: 16px;
    background: linear-gradient(145deg, var(--gold-a20), var(--gold-a05));
    border: 1px solid var(--gold-a35);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--gold);
}

.auth-card-head h2 {
    font-family: var(--font-display);
    font-size: 1.65rem;
    margin: 0 0 0.35rem;
}

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

.auth-field {
    margin-bottom: 1.15rem;
}

.auth-field label {
    display: block;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 0.4rem;
}

.auth-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.auth-input-wrap > i:first-child {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.auth-input-wrap input {
    width: 100%;
    padding: 0.95rem 1rem 0.95rem 2.75rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: var(--dark-3);
    color: var(--white);
    font-size: 16px;
    font-family: var(--font-body);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.auth-input-wrap input:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px var(--gold-a15);
}

.auth-toggle-pw {
    position: absolute;
    right: 0.5rem;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
}

.auth-toggle-pw:hover {
    color: var(--gold);
    background: rgba(255, 255, 255, 0.05);
}

.auth-msg {
    padding: 0.75rem 1rem;
    border-radius: 10px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.auth-msg-error {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error);
}

.btn-auth-submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 12px;
    background: linear-gradient(145deg, var(--gold-light), var(--gold-dark));
    color: var(--dark);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 8px 24px var(--gold-a25);
}

.btn-auth-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px var(--gold-a35);
}

.btn-auth-submit:disabled {
    opacity: 0.7;
    cursor: wait;
}

.auth-footer-note {
    margin-top: 1.5rem;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-align: center;
}