/* ══════════════════════════════════════════════════════════
   INNER PAGES — Shared Components for Authenticated Pages
   (api-keys, api-docs, settings, upload)
   Uses design tokens from style.css — never hardcode colors.
   ══════════════════════════════════════════════════════════ */

/* ═══════ 1. PAGE LAYOUT ═══════ */
.app-section {
    max-width: 900px;
    margin: 0 auto;
    padding: 100px 1.5rem 2rem;
}

/* ═══════ 2. PAGE HEADER ═══════ */
.app-header {
    margin-bottom: 2rem;
}

.app-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.app-header p {
    color: var(--color-text-secondary);
}

/* ═══════ 3. CARD COMPONENT ═══════ */
.app-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.app-card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.app-card h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.app-card h2 i {
    color: var(--color-accent);
    font-size: 1rem;
}

.app-card h3 {
    font-size: 1rem;
    margin: 1rem 0 0.5rem;
}

.app-card p,
.app-card li {
    line-height: 1.7;
}

.app-card ul {
    padding-left: 1.5rem;
}

.app-card .card-desc {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* ═══════ 4. TOAST SYSTEM ═══════ */
.toast-container {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toastSlideIn 0.3s var(--ease-out);
    min-width: 280px;
    max-width: 420px;
    color: #fff;
}

.toast.success {
    background: rgba(5, 150, 105, 0.95);
}

.toast.error {
    background: rgba(239, 68, 68, 0.95);
}

.toast.warning {
    background: rgba(217, 119, 6, 0.95);
}

.toast .toast-close {
    margin-left: auto;
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 1.15rem;
    opacity: 0.7;
    padding: 0;
}

.toast .toast-close:hover {
    opacity: 1;
}

/* Toast screen-reader announcement support */
.toast[role="alert"] {
    /* Ensures toast is announced by screen readers */
}

.toast[aria-live="polite"] {
    /* Non-urgent toast announcements */
}

@keyframes toastSlideIn {
    from { opacity: 0; transform: translateX(1rem); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ═══════ 5. MODAL SYSTEM ═══════ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: var(--filter-glass-subtle);
    -webkit-backdrop-filter: var(--filter-glass-subtle);
    z-index: 9998;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    max-width: 420px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.25s var(--ease-out);
}

.modal-card h3 {
    margin-bottom: 0.5rem;
}

.modal-card p {
    color: var(--color-text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1rem;
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

/* Confirm dialog variant — centered icon */
.modal-card.confirm-dialog {
    text-align: center;
}

.modal-card.confirm-dialog .modal-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    display: block;
    color: var(--color-danger);
}

.modal-card.confirm-dialog .modal-actions {
    justify-content: center;
}

/* Focus-visible for modal actions */
.modal-card .btn-action:focus-visible,
.modal-card button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95); }
    to   { opacity: 1; transform: scale(1); }
}

/* Modal focus trap visual indicator */
.modal-overlay:focus-within .modal-card {
    box-shadow: var(--shadow-lg), 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* Legacy modal classes (backwards compat with api_keys.html) */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: var(--filter-glass-subtle);
    -webkit-backdrop-filter: var(--filter-glass-subtle);
    z-index: 9998;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-backdrop.visible {
    display: flex;
}

.modal-dialog {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    max-width: 420px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.25s var(--ease-out);
}

.modal-dialog h3 {
    margin-bottom: 0.5rem;
}

.modal-dialog p {
    color: var(--color-text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1rem;
}

/* ═══════ 6. STATUS BADGES ═══════ */
.status-badge {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.status-badge.active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
}

.status-badge.revoked {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}

/* ═══════ 7. METHOD BADGES ═══════ */
.method-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    margin-right: 0.5rem;
}

.method-post {
    background: rgba(37, 99, 235, 0.15);
    color: var(--color-accent);
}

.method-get {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
}

.method-put {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}

.method-delete {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}

/* ═══════ 8. CODE BLOCKS ═══════ */
pre.code-block {
    position: relative;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    margin: 0.75rem 0;
}

.code-copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    min-height: 44px;
    min-width: 44px;
    cursor: pointer;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast);
    opacity: 0.5;
}

pre.code-block:hover .code-copy-btn {
    opacity: 1;
}

.code-copy-btn:hover {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

code.inline {
    background: var(--color-bg-alt);
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* ═══════ 9. SHARED BUTTONS ═══════ */
.btn-action {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-action:hover {
    background: var(--color-bg-alt);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-action.primary {
    background: var(--gradient-cta);
    color: #fff;
    border-color: transparent;
    font-weight: 600;
}

.btn-action.primary:hover {
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-action.danger {
    border-color: var(--color-danger);
    color: var(--color-danger);
}

.btn-action.danger:hover {
    background: var(--color-danger);
    color: #fff;
}

.btn-action:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Page-specific buttons (from api_keys.html) */
.btn-create {
    background: var(--color-accent);
    color: #fff;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn-create:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--color-bg-alt);
}

.btn-revoke {
    background: transparent;
    border: 1px solid var(--color-danger);
    color: var(--color-danger);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn-revoke:hover {
    background: var(--color-danger);
    color: #fff;
}

/* Delete button — subtle on card, danger tint on hover */
.btn-delete {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-delete:hover {
    background: rgba(239, 68, 68, 0.06);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

/* Filled danger button for destructive modal confirmations */
.btn-danger {
    background: var(--color-danger);
    border: 1px solid var(--color-danger);
    color: #fff;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-danger:hover {
    background: var(--color-danger);
    border-color: var(--color-danger);
    filter: brightness(0.9);
    transform: translateY(-1px);
}

.btn-copy {
    background: var(--color-accent);
    color: #fff;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-copy:hover {
    opacity: 0.9;
}

/* ═══════ 10. PARAM TABLE ═══════ */
.param-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.75rem 0;
}

.param-table th,
.param-table td {
    text-align: left;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.85rem;
}

.param-table th {
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.error-row td:first-child {
    font-family: var(--font-mono);
    font-weight: 600;
}

.param-table tbody tr:nth-child(even) {
    background: var(--color-bg-alt);
}

/* ═══════ 11. SKELETON LOADING, EMPTY STATE, ERROR STATE ═══════ */

/* Skeleton loading */
.skeleton-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 1rem;
    height: 80px;
}

.skeleton-card .skeleton-line {
    height: 0.85rem;
    border-radius: var(--radius-sm);
    background: linear-gradient(90deg, var(--color-border) 25%, var(--color-bg) 50%, var(--color-border) 75%);
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s infinite;
}

.skeleton-card .skeleton-line:first-child {
    width: 40%;
    margin-bottom: 0.5rem;
}

.skeleton-card .skeleton-line:nth-child(2) {
    width: 60%;
    margin-bottom: 0.4rem;
}

.skeleton-card .skeleton-line:last-child {
    width: 80%;
}

@keyframes skeletonShimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-secondary);
}

.empty-state i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
    opacity: 0.6;
}

/* Error state */
.error-state {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--color-text-secondary);
}

.error-state i {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    display: block;
    color: var(--color-danger);
}

.error-state button {
    margin-top: 0.75rem;
}

/* ═══════ 12. TABLE OF CONTENTS (TOC) ═══════ */
.toc {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.toc li {
    flex: 1 1 0;
    text-align: center;
}

.toc a {
    display: block;
    padding: 0.6rem 0.65rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    text-decoration: none;
    color: var(--color-text);
    white-space: nowrap;
    line-height: 1.4;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.toc a:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ═══════ 13. ENDPOINT PATH, STEP NUMBER, BADGE COMING SOON ═══════ */
.endpoint-path {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
}

.app-card .step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    margin-right: 0.5rem;
}

.steps-list {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.steps-list > p {
    margin: 0;
}

.badge-coming-soon {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
    margin-left: 0.5rem;
    vertical-align: middle;
}

/* ═══════ 14. KEY CARD SPECIFIC STYLES ═══════ */
.key-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.key-card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-sm);
}

.key-card.revoked {
    background: var(--color-bg-alt);
}

.key-card.revoked .key-info {
    opacity: 0.6;
}

.key-info {
    flex: 1;
}

.key-name {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.key-prefix {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.key-meta {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: 0.35rem;
}

.key-meta span {
    margin-right: 1rem;
}

/* Raw key display (shown once after creation) */
.raw-key-display {
    background: var(--color-bg-alt);
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: none;
    text-align: center;
}

.raw-key-display.visible {
    display: block;
}

.raw-key-display .warning {
    color: var(--color-warning);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.raw-key-display code {
    display: block;
    font-family: var(--font-mono);
    font-size: 1rem;
    padding: 0.75rem;
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    margin: 0.75rem 0;
    word-break: break-all;
    user-select: all;
}

/* Create form */
.create-form {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: none;
}

.create-form.visible {
    display: block;
}

.create-form input[type="text"] {
    width: 100%;
    padding: 0.6rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: border-color var(--transition-fast);
}

.create-form input[type="text"]:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Upgrade notice */
.upgrade-notice {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
}

.upgrade-notice h2 {
    margin-bottom: 0.75rem;
}

.upgrade-notice p {
    color: var(--color-text-secondary);
}

/* ═══════ 15. PIPELINE GENERATOR ═══════ */

/* Distinguished card — accent top border */
.pipeline-generator {
    position: relative;
    overflow: hidden;
}

.pipeline-generator::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-cta);
}

/* Header row: title + live badge */
.pipeline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.pipeline-header h2 {
    margin-bottom: 0;
}

.pipeline-live-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-success);
    background: rgba(16, 185, 129, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
}

.pipeline-live-badge i {
    font-size: 0.75rem;
    animation: livePulse 2s ease-in-out infinite;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Config section */
.pipeline-config {
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.pipeline-config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.config-field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.config-field label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
}

/* Info icon + tooltip */
.config-tooltip-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.config-info-icon {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    cursor: help;
    transition: color var(--transition-fast);
}

.config-info-icon:hover {
    color: var(--color-accent);
}

.config-tooltip {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-text);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    line-height: 1.4;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    white-space: normal;
    width: max-content;
    max-width: 220px;
    z-index: 10;
    pointer-events: none;
}

.config-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--color-text);
}

.config-tooltip-wrapper:hover .config-tooltip {
    display: block;
}

.config-field input[type="text"],
.config-field select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-alt);
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.config-field input[type="text"]:focus,
.config-field select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.config-field input[type="text"]::placeholder {
    color: var(--color-text-muted);
}

.config-field-inline {
    flex-direction: row;
    align-items: center;
    align-self: end;
    gap: 0.5rem;
}

.config-field-inline label {
    text-transform: none;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--color-text);
}

/* Custom checkbox */
.config-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 1.15rem;
    height: 1.15rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.config-checkbox:checked {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.config-checkbox:checked::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 4px;
    width: 5px;
    height: 8px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.config-checkbox:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Tabs */
.pipeline-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 0;
}

.pipeline-tab {
    padding: 0.6rem 1rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.pipeline-tab:hover {
    color: var(--color-text);
    background: rgba(37, 99, 235, 0.04);
}

.pipeline-tab[aria-selected="true"] {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
    font-weight: 600;
    background: rgba(37, 99, 235, 0.06);
}

/* Panels */
.pipeline-panel {
    display: none;
}

.pipeline-panel.active {
    display: block;
}

.pipeline-panel pre.code-block {
    margin-top: 0;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
    border-top: none;
    min-height: 12rem;
}

/* ═══════ FOCUS-VISIBLE (A11y) ═══════ */
.btn-action:focus-visible,
.btn-create:focus-visible,
.btn-secondary:focus-visible,
.btn-revoke:focus-visible,
.btn-delete:focus-visible,
.btn-danger:focus-visible,
.btn-copy:focus-visible,
.code-copy-btn:focus-visible,
.pipeline-tab:focus-visible,
.toc a:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ═══════ RESPONSIVE ═══════ */
@media (max-width: 768px) {
    .app-section {
        padding: 80px 1rem 1.5rem;
    }

    .key-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .key-card .btn-revoke,
    .key-card .btn-delete {
        align-self: flex-end;
    }

    .modal-card,
    .modal-dialog {
        width: 95%;
        padding: 1.25rem;
    }

    .toc {
        gap: 0.35rem;
    }

    .toc a {
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
    }

    .toast {
        min-width: auto;
        max-width: calc(100vw - 2rem);
    }

    .pipeline-config-grid {
        grid-template-columns: 1fr;
    }

    .pipeline-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .pipeline-tabs::-webkit-scrollbar {
        display: none;
    }

    .pipeline-tab {
        white-space: nowrap;
        flex-shrink: 0;
    }
}

/* ═══════ MOBILE (480px) ═══════ */
@media (max-width: 480px) {
    .app-section {
        padding: 80px 1rem 2rem;
    }
    .app-header h1 {
        font-size: 1.5rem;
    }
    .app-card {
        padding: 1.25rem;
    }
    .key-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .key-card .key-actions {
        width: 100%;
    }
    .key-card .key-actions button {
        width: 100%;
    }
    .toast-container {
        left: 1rem;
        right: 1rem;
        top: auto;
        bottom: 1rem;
    }
    .toast {
        width: 100%;
    }
    .modal-card {
        margin: 1rem;
        max-width: calc(100vw - 2rem);
    }
    .create-form {
        flex-direction: column;
    }
    .create-form input[type="text"] {
        width: 100%;
    }
    .toc {
        flex-wrap: wrap;
    }
    .toc a {
        font-size: 0.75rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .skeleton-shimmer,
    .modal-card,
    .livePulse {
        animation: none !important;
        transition-duration: 0.01ms !important;
    }
}