/* ==========================================
   Auth — Gate Screen, Login, Register, Confirmation
   ========================================== */

.auth-screen {
    min-height: 100vh;
    padding: 32px 20px 48px;
    background:
        radial-gradient(ellipse at 50% 30%, var(--primary-muted) 0%, transparent 60%),
        var(--bg-main);
}

.auth-layout {
    max-width: 1100px;
    margin: 0 auto;
}
.auth-layout--narrow {
    max-width: 440px;
}

/* Brand Block */
.auth-brand {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding: var(--space-2xl) var(--space-md) var(--space-lg);
}
.auth-brand-icon {
    font-size: 48px;
    margin-bottom: var(--space-sm);
    opacity: 0.7;
    filter: drop-shadow(0 0 12px rgba(91, 141, 239, 0.3));
}
.auth-brand-title {
    font-family: var(--font-display);
    font-size: 42px;
    color: var(--text-heading);
    margin-bottom: 2px;
    line-height: 1.1;
}
.auth-brand-subtitle {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 14px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: var(--space-md);
}
.auth-brand-lead {
    color: var(--text-muted);
    font-size: 15px;
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Legacy compat */
.auth-lead,
.auth-muted {
    color: var(--text-muted);
}

/* Auth Card */
.auth-card {
    margin-bottom: 20px;
}

/* Auth Tabs */
.auth-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 20px;
}
.auth-tab-btn {
    flex: 1;
    padding: 12px 16px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
}
.auth-tab-btn:hover {
    color: var(--text-main);
}
.auth-tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Tab Panels */
.auth-tab-panel {
    display: none;
}
.auth-tab-panel.active {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

/* Auth Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* Credential Row (username/password + reroll) */
.credential-row {
    display: flex;
    gap: 10px;
    align-items: center;
}
.credential-row input {
    flex: 1;
    min-width: 0;
    font-family: var(--font-mono);
    font-size: 15px;
    letter-spacing: 0.03em;
}
.credential-row .btn-reroll {
    flex-shrink: 0;
    padding: 10px 12px;
    font-size: 16px;
    line-height: 1;
    background-color: var(--bg-main);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s;
}
.credential-row .btn-reroll:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-main);
}
.credential-row .btn-reroll:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Passphrase feedback */
.auth-passphrase-help {
    margin-top: -4px;
    color: var(--text-muted);
    font-size: 14px;
}
.auth-passphrase-feedback {
    min-height: 22px;
    font-size: 14px;
    color: var(--text-muted);
}
.auth-passphrase-feedback.is-error {
    color: var(--color-danger);
}
.auth-passphrase-feedback.is-success {
    color: var(--color-success);
}

/* Form Actions */
.auth-form-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 4px;
}
.auth-form-actions button {
    align-self: flex-start;
}
.auth-form-actions button.primary {
    flex: 1;
    min-width: 180px;
}

/* Info Cards Grid */
.auth-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}
.info-card h3 {
    margin-bottom: 10px;
    color: var(--primary);
    font-family: var(--font-display);
}

/* Role Toggle (patient/therapist) */
.role-toggle {
    display: flex;
    gap: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.role-toggle-btn {
    flex: 1;
    padding: 10px 16px;
    background: var(--bg-main);
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}
.role-toggle-btn:not(:last-child) {
    border-right: 1px solid var(--border-color);
}
.role-toggle-btn.active {
    background-color: var(--primary);
    color: #fff;
}
.role-toggle-btn[data-role="therapist"].active {
    background-color: var(--therapist-primary, #6ea8a0);
}

/* Confirmation Code */
.confirm-code-input {
    font-size: 32px !important;
    letter-spacing: 0.4em;
    text-align: center;
    font-family: var(--font-mono);
    max-width: 280px;
    margin: 0 auto;
    padding: 12px 16px !important;
}
.confirm-code-input::placeholder {
    letter-spacing: 0.3em;
    font-size: 28px;
    opacity: 0.3;
}
#confirm-screen .auth-layout {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

/* Auth link */
.auth-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
}
.auth-link:hover {
    text-decoration: underline;
}

/* ==========================================
   Collapsible Info Section
   ========================================== */
.auth-info-details {
    margin-top: var(--space-lg);
}
.auth-info-summary {
    cursor: pointer;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    padding: var(--space-sm) 0;
    text-align: center;
    transition: color 0.2s;
    list-style: none;
}
.auth-info-summary::-webkit-details-marker { display: none; }
.auth-info-summary::before {
    content: '+ ';
    font-weight: 700;
    color: var(--primary);
}
.auth-info-details[open] .auth-info-summary::before {
    content: '- ';
}
.auth-info-summary:hover {
    color: var(--text-main);
}
.auth-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-md);
}
.auth-info-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}
.auth-info-icon {
    font-size: 24px;
    margin-bottom: var(--space-sm);
}
.auth-info-item h3 {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-heading);
    margin-bottom: var(--space-xs);
}
.auth-info-item p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}
.auth-info-contact {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: var(--space-md);
}
.auth-info-contact a {
    color: var(--primary);
}

/* ==========================================
   Auth Responsive
   ========================================== */
@media (max-width: 700px) {
    .auth-screen {
        padding: 20px 14px 32px;
    }
    .auth-hero h1 {
        font-size: 28px;
    }
    .auth-form button {
        width: 100%;
    }
    .credential-row {
        flex-wrap: wrap;
    }
}