:root {
    --gold: #C9A84C; --gold-dark: #AA8A3A; --gold-light: #E8C87A;
    --cream: #F5ECD7; --bg: #080507; --card: #0F0C10;
    --surface: #160F18; --border: #1E1720;
    --text-secondary: #9E8F80; --alert-red: #FF4444;
}
* { box-sizing: border-box; margin: 0; }

body {
    font-family: 'Outfit', sans-serif;
    min-height: 100vh;
    background: var(--bg);
    display: flex;
    overflow: hidden;
}

/* Lado izquierdo: visual */
.login-visual {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(160deg, #160F18 0%, #080507 40%, #0F0C10 100%);
}

.login-visual::before {
    content: '';
    position: absolute;
    top: -20%; right: -10%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(201,168,76,.08) 0%, transparent 70%);
    border-radius: 50%;
}

.login-visual::after {
    content: '';
    position: absolute;
    bottom: -15%; left: -5%;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(139,26,26,.1) 0%, transparent 70%);
    border-radius: 50%;
}

.visual-content {
    position: relative; z-index: 1;
    text-align: center;
    padding: 40px;
}

.visual-logo {
    width: 120px; height: 120px;
    border-radius: 50%;
    border: 2px solid rgba(201,168,76,.3);
    box-shadow: 0 0 60px rgba(201,168,76,.12), 0 0 120px rgba(201,168,76,.06);
    margin-bottom: 28px;
    animation: logoPulse 4s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% { box-shadow: 0 0 60px rgba(201,168,76,.12), 0 0 120px rgba(201,168,76,.06); }
    50% { box-shadow: 0 0 80px rgba(201,168,76,.2), 0 0 160px rgba(201,168,76,.1); }
}

.visual-title {
    font-family: 'Cinzel', serif;
    font-size: 2.8rem;
    font-weight: 900;
    letter-spacing: 8px;
    background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dark));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.visual-subtitle {
    font-family: 'Cinzel', serif;
    font-size: .9rem;
    color: var(--text-secondary);
    letter-spacing: 4px;
    margin-bottom: 32px;
}

.visual-tagline {
    font-size: .85rem;
    color: rgba(245,236,215,.35);
    font-style: italic;
    max-width: 360px;
    margin: 0 auto;
    line-height: 1.6;
}

.visual-divider {
    width: 80px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-dark), transparent);
    margin: 24px auto;
}

.visual-features {
    display: flex;
    gap: 32px;
    justify-content: center;
    margin-top: 36px;
}

.visual-feature {
    text-align: center;
}

.visual-feature i {
    display: block;
    font-size: 1.4rem;
    color: var(--gold);
    margin-bottom: 6px;
}

.visual-feature span {
    font-size: .72rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

/* Lado derecho: formulario */
.login-form-side {
    width: 460px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: var(--card);
    border-left: 1px solid var(--border);
}

.login-form-inner {
    width: 100%;
    max-width: 340px;
}

.form-heading {
    font-family: 'Cinzel', serif;
    font-size: 1.2rem;
    color: var(--gold);
    letter-spacing: 3px;
    margin-bottom: 6px;
}

.form-subheading {
    font-size: .82rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.form-label {
    color: var(--text-secondary);
    font-size: .8rem;
    font-weight: 500;
    margin-bottom: 5px;
}

.form-control {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--cream);
    border-radius: 10px;
    padding: 11px 14px;
    font-family: 'Outfit', sans-serif;
    font-size: .9rem;
    transition: border-color .2s, box-shadow .2s;
}
.form-control:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(201,168,76,.12);
    background: var(--surface);
    color: var(--cream);
}
.form-control::placeholder { color: rgba(158,143,128,.5); }

.input-group-text {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--gold-dark);
    border-radius: 10px 0 0 10px;
    border-right: none;
}
.input-group .form-control { border-left: none; border-radius: 0 10px 10px 0; }

.btn-gold-login {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--gold), var(--gold-dark));
    color: var(--bg);
    border: none;
    border-radius: 10px;
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: .9rem;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all .25s;
    margin-top: 8px;
}
.btn-gold-login:hover {
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    box-shadow: 0 4px 20px rgba(201,168,76,.25);
    transform: translateY(-1px);
}

.alert-login {
    background: rgba(255,68,68,.08);
    color: var(--alert-red);
    border: 1px solid rgba(255,68,68,.25);
    font-size: .82rem;
    border-radius: 10px;
    padding: 10px 14px;
    margin-bottom: 18px;
    text-align: center;
}

.demo-hint {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: .72rem;
    line-height: 1.7;
}
.demo-hint strong { color: var(--gold-dark); }
.demo-hint .role { color: rgba(158,143,128,.6); }

.version-tag {
    text-align: center;
    margin-top: 28px;
    font-size: .68rem;
    color: rgba(158,143,128,.4);
    letter-spacing: 1px;
}

/* Adaptación a pantallas pequeñas (responsive) */
@media (max-width: 991px) {
    body { flex-direction: column; overflow-y: auto; }
    .login-visual { min-height: 40vh; flex: none; }
    .visual-title { font-size: 2rem; letter-spacing: 5px; }
    .visual-features { gap: 20px; }
    .login-form-side {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--border);
        padding: 32px 24px;
    }
}

@media (max-width: 575px) {
    .visual-features { display: none; }
    .visual-tagline { display: none; }
    .visual-logo { width: 80px; height: 80px; }
    .visual-title { font-size: 1.6rem; }
}