/* ==========================================================================
   Pharwatch — Auth Pages
   Split-panel: branding left, form right
   ========================================================================== */

@keyframes authFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes authPulse {
    0%, 100% { opacity: 0.04; }
    50% { opacity: 0.08; }
}

/* ---------- Page ---------- */

.auth-page {
    min-height: 100vh;
    display: flex;
    background: var(--color-surface);
}

/* ---------- Brand Panel ---------- */

.auth-brand {
    display: none;
    position: relative;
    width: 42%;
    min-height: 100vh;
    background: var(--color-primary);
    overflow: hidden;
    flex-shrink: 0;
}

@media (min-width: 900px) {
    .auth-brand {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

.auth-brand__bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: authPulse 8s ease-in-out infinite;
}

.auth-brand__glow {
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.auth-brand__content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-2xl);
}

.auth-brand__logo {
    width: 160px;
    height: auto;
    margin: 0 auto var(--space-xl);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

a.auth-brand__name {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text-inverse);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
    text-decoration: none;
    display: block;
}

a.auth-brand__name:hover {
    color: var(--color-text-inverse);
}

a.auth-mobile-logo {
    text-decoration: none;
}

.auth-brand__tagline {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.6;
    max-width: 260px;
    margin: 0 auto;
}

/* ---------- Form Panel ---------- */

.auth-form-panel {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl) var(--space-lg);
}

.auth-form-container {
    width: 100%;
    max-width: 400px;
    animation: authFadeIn 0.5s ease both;
}

.auth-form__header {
    margin-bottom: var(--space-2xl);
}

.auth-form__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.auth-form__subtitle {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ---------- Mobile logo ---------- */

.auth-mobile-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
}

@media (min-width: 900px) {
    .auth-mobile-logo {
        display: none;
    }
}

.auth-mobile-logo img {
    height: 36px;
    width: auto;
}

.auth-mobile-logo__text {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* ---------- Form Elements ---------- */

.auth-form .form-group {
    margin-bottom: var(--space-lg);
}

.auth-form label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.01em;
}

.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"] {
    width: 100%;
    padding: 0.6875rem var(--space-md);
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.auth-form input:focus {
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.auth-form input::placeholder {
    color: var(--color-text-muted);
}

.auth-form input.is-invalid {
    border-color: var(--color-error);
}

/* ---------- Error Messages ---------- */

.form-error {
    font-size: 0.8125rem;
    color: var(--color-error);
    margin-top: var(--space-xs);
}

.auth-alert {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: var(--space-lg);
    line-height: 1.5;
}

.auth-alert-success {
    background: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid rgba(5, 150, 105, 0.15);
}

.auth-alert-error {
    background: var(--color-error-light);
    color: var(--color-error);
    border: 1px solid rgba(220, 38, 38, 0.15);
}

/* ---------- Submit Button ---------- */

.auth-form .button-submit {
    width: 100%;
    padding: 0.75rem var(--space-lg);
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-inverse);
    background: var(--color-secondary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.auth-form .button-submit:hover {
    background: var(--color-secondary-hover);
}

.auth-form .button-submit:active {
    transform: scale(0.985);
}

.auth-form .button-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ---------- Links ---------- */

.auth-form__links {
    margin-top: var(--space-lg);
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.auth-form__links a {
    color: var(--color-secondary);
    font-weight: 500;
}

.auth-form__links a:hover {
    color: var(--color-secondary-hover);
}

.auth-form__forgot {
    display: block;
    text-align: right;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: calc(var(--space-xs) * -1);
    margin-bottom: var(--space-lg);
}

.auth-form__forgot:hover {
    color: var(--color-secondary);
}

/* ---------- Registration Closed ---------- */

.auth-registration-closed {
    text-align: center;
    padding: var(--space-xl);
    background: var(--color-background);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-subtle);
}

.auth-registration-closed p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--space-lg);
}