/* ==============================================================
   LOGIN — página de autenticação
   ============================================================== */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background:
        radial-gradient(circle at 20% 20%, rgba(74, 127, 224, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.10) 0%, transparent 45%),
        linear-gradient(135deg, #f8fafc 0%, #eff4fd 100%);
}

body.theme-dark .login-page {
    background:
        radial-gradient(circle at 20% 20%, rgba(74, 127, 224, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.12) 0%, transparent 45%),
        linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.login-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
    padding: 40px 36px;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-success));
}

.login-brand {
    text-align: center;
    margin-bottom: 30px;
}
.login-brand-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}
.login-brand-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.3rem;
    box-shadow: 0 6px 16px rgba(74, 127, 224, 0.3);
}
.login-brand-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}
.login-brand-name small {
    display: block;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: 2px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.login-title {
    text-align: center;
    margin-bottom: 6px;
    font-size: 1.35rem;
    font-weight: 700;
}
.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.login-social {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}
.login-social button {
    flex: 1;
    padding: 10px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color-strong);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: border-color var(--t-fast), background var(--t-fast);
}
.login-social button:hover {
    border-color: var(--color-primary);
    background: var(--bg-surface-alt);
}

.login-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.78rem;
    margin: 18px 0;
}
.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.login-alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    border-radius: var(--radius);
    border-left: 4px solid;
    font-size: 0.85rem;
    margin-bottom: 16px;
    position: relative;
}
.login-alert .close {
    position: absolute;
    top: 8px;
    right: 10px;
    background: none;
    border: 0;
    color: inherit;
    opacity: 0.7;
    cursor: pointer;
    font-size: 1rem;
}
.login-alert.danger {
    background: var(--color-danger-soft);
    border-color: var(--color-danger);
    color: #991b1b;
}
.login-alert.warning {
    background: var(--color-warning-soft);
    border-color: var(--color-warning);
    color: #92400e;
}
.login-alert.success {
    background: var(--color-success-soft);
    border-color: var(--color-success);
    color: #065f46;
}

.login-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 14px 0 18px;
    font-size: 0.85rem;
}
.login-row a {
    color: var(--text-secondary);
    font-weight: 500;
}
.login-row a:hover { color: var(--color-primary); }

.login-btn {
    width: 100%;
    padding: 12px 16px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    border: 0;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 6px 16px rgba(74, 127, 224, 0.3);
    transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(74, 127, 224, 0.4);
}
.login-btn:active { transform: translateY(0); }

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.login-footer a { color: var(--color-primary); font-weight: 600; }

.login-turnstile {
    margin: 16px 0 8px;
    display: flex;
    justify-content: center;
}

/* Toggle dark mode flutuante */
.login-theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: transform var(--t-fast);
}
.login-theme-toggle:hover { transform: rotate(15deg); color: var(--color-primary); }

@media (max-width: 480px) {
    .login-card { padding: 30px 22px; }
    .login-social { flex-direction: column; }
}