/**
 * GP SEO Tools Public Styles (Simplified)
 */

/* CSS Variables */
:root {
    --gbt-primary: #0073aa;
    --gbt-primary-hover: #005a87;
    --gbt-success: #46b450;
    --gbt-warning: #ffb900;
    --gbt-danger: #dc3232;
    --gbt-info: #00a0d2;
    --gbt-text: #23282d;
    --gbt-text-muted: #666;
    --gbt-border: #ccd0d4;
    --gbt-bg: #f8f9fa;
    --gbt-white: #fff;
    --gbt-radius: 8px;
    --gbt-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* General */
.gbt-text-muted { color: var(--gbt-text-muted); }
.gbt-text-success { color: var(--gbt-success); }
.gbt-text-warning { color: var(--gbt-warning); }
.gbt-text-danger { color: var(--gbt-danger); }
.gbt-text-center { text-align: center; }

/* Buttons */
.gbt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--gbt-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
}

.gbt-btn-primary {
    background: var(--gbt-primary);
    color: var(--gbt-white);
}

.gbt-btn-primary:hover {
    background: var(--gbt-primary-hover);
    color: var(--gbt-white);
}

.gbt-btn-secondary {
    background: var(--gbt-bg);
    color: var(--gbt-text);
    border: 1px solid var(--gbt-border);
}

.gbt-btn-secondary:hover {
    background: #e9ecef;
}

.gbt-btn-sm { padding: 6px 12px; font-size: 13px; }
.gbt-btn-lg { padding: 14px 28px; font-size: 16px; }
.gbt-btn-block { width: 100%; }

.gbt-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.gbt-add-cart.is-in-cart {
    background: #6c757d;
    border-color: #6c757d;
    color: var(--gbt-white);
}

/* Notices */
.gbt-notice {
    padding: 15px 20px;
    border-radius: var(--gbt-radius);
    margin-bottom: 20px;
}

.gbt-notice p { margin: 0; }

.gbt-notice-success { background: #d4edda; border: 1px solid #c3e6cb; color: #155724; }
.gbt-notice-warning { background: #fff3cd; border: 1px solid #ffeeba; color: #856404; }
.gbt-notice-error { background: #f8d7da; border: 1px solid #f5c6cb; color: #721c24; }
.gbt-notice-info { background: #d1ecf1; border: 1px solid #bee5eb; color: #0c5460; }

/* Auth Pages */
.gbt-auth-page {
    max-width: 520px;
    margin: 40px auto;
    padding: 0 20px;
}

.gbt-auth-card {
    background: var(--gbt-white);
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    box-shadow: var(--gbt-shadow);
    padding: 24px;
}

.gbt-auth-card h1 {
    margin: 0 0 16px;
    font-size: 26px;
}

.gbt-form-group {
    margin-bottom: 16px;
}

.gbt-form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
}

.gbt-form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    font-size: 14px;
    background: var(--gbt-white);
}

.gbt-form-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.gbt-form-actions {
    margin-top: 10px;
}

.gbt-form-help {
    margin-top: 14px;
    font-size: 14px;
    color: var(--gbt-text-muted);
}

.gbt-auth-divider {
    height: 1px;
    background: var(--gbt-border);
    margin: 18px 0;
}

.gbt-form-secondary {
    margin-top: 10px;
}

/* Badges */
.gbt-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.gbt-badge-success { background: #d4edda; color: #155724; }
.gbt-badge-warning { background: #fff3cd; color: #856404; }
.gbt-badge-danger { background: #f8d7da; color: #721c24; }
.gbt-badge-info { background: #d1ecf1; color: #0c5460; }

/* Tools Page */
.gbt-tools-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.gbt-tools-header {
    text-align: center;
    margin-bottom: 40px;
}

.gbt-tools-header h1 {
    font-size: 32px;
    margin: 0 0 10px;
}

.gbt-tools-header p {
    color: var(--gbt-text-muted);
    font-size: 18px;
    margin: 0;
}

.gbt-view-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.gbt-view-toggle .gbt-btn.is-active {
    background: var(--gbt-primary);
    border-color: var(--gbt-primary);
    color: var(--gbt-white);
}

.gbt-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.gbt-tool-card {
    background: var(--gbt-white);
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    overflow: hidden;
    box-shadow: var(--gbt-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.gbt-tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.gbt-tool-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    border-bottom: 1px solid var(--gbt-border);
}

.gbt-tool-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 8px;
}

.gbt-tool-icon-placeholder {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gbt-bg);
    border-radius: 8px;
    color: var(--gbt-text-muted);
    font-size: 24px;
}

.gbt-tool-card-header h3 {
    margin: 0;
    font-size: 18px;
}

.gbt-tool-card-body {
    padding: 20px;
}

.gbt-tool-card-body p {
    margin: 0 0 15px;
    color: var(--gbt-text-muted);
    font-size: 14px;
    line-height: 1.5;
}

.gbt-sticky-cart-shell {
    position: relative;
    z-index: 10000;
}

.gbt-cart-edge-tab {
    position: fixed;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    z-index: 10003;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 44px;
    padding: 12px 7px;
    border: 1px solid var(--gbt-border);
    border-right: none;
    border-radius: 10px 0 0 10px;
    background: var(--gbt-primary);
    color: var(--gbt-white);
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
}

.gbt-cart-edge-tab-label {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 11px;
    font-weight: 700;
}

.gbt-cart-edge-tab .gbt-cart-count {
    min-width: 22px;
    padding: 2px 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.22);
    color: var(--gbt-white);
    font-size: 11px;
    line-height: 1.4;
    text-align: center;
    font-weight: 700;
}

.gbt-cart-edge-drawer {
    display: none;
}

body.gbt-cart-edge-open .gbt-cart-edge-drawer {
    display: block;
}

body.gbt-cart-edge-open .gbt-cart-edge-tab {
    display: none;
}

.gbt-cart-edge-overlay {
    position: fixed;
    inset: 0;
    border: none;
    margin: 0;
    padding: 0;
    appearance: none;
    -webkit-appearance: none;
    background: rgba(0, 0, 0, 0.12) !important;
    box-shadow: none;
    outline: none;
    z-index: 10001;
}

.gbt-cart-edge-overlay:hover,
.gbt-cart-edge-overlay:active,
.gbt-cart-edge-overlay:focus,
.gbt-cart-edge-overlay:focus-visible {
    background: rgba(0, 0, 0, 0.12) !important;
    box-shadow: none;
    outline: none;
}

.gbt-cart-edge-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 10002;
    width: min(360px, 92vw);
    background: var(--gbt-white);
    border: 1px solid var(--gbt-border);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.16);
    display: flex;
    flex-direction: column;
}

.gbt-cart-edge-close {
    border: none;
    background: transparent;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    color: var(--gbt-text-muted);
}

.gbt-sticky-cart-shell.is-empty .gbt-cart-edge-tab,
.gbt-sticky-cart-shell.is-empty .gbt-cart-edge-drawer {
    display: none;
}

.gbt-sticky-cart-shell.is-empty .gbt-sticky-cart-mobile-bar,
.gbt-sticky-cart-shell.is-empty .gbt-sticky-cart-mobile-drawer {
    display: none;
}

.gbt-sticky-cart-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 14px 14px 10px;
    border-bottom: 1px solid var(--gbt-border);
}

.gbt-sticky-cart-head h3 {
    margin: 0;
    font-size: 16px;
}

.gbt-sticky-cart-items,
.gbt-sticky-cart-items-mobile {
    list-style: none;
    margin: 0;
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow: auto;
    max-height: 340px;
}

.gbt-cart-edge-panel .gbt-sticky-cart-items {
    flex: 1;
    max-height: none;
}

.gbt-sticky-cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.gbt-sticky-cart-item-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.gbt-sticky-cart-item-meta strong {
    font-size: 13px;
}

.gbt-sticky-cart-item-meta span {
    font-size: 12px;
    color: var(--gbt-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gbt-sticky-cart-empty {
    color: var(--gbt-text-muted);
    font-size: 13px;
    text-align: center;
    padding: 12px 0;
}

.gbt-sticky-cart-foot {
    border-top: 1px solid var(--gbt-border);
    padding: 12px 14px 14px;
    background: var(--gbt-bg);
}

.gbt-sticky-cart-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 14px;
}

.gbt-sticky-cart-mobile-bar {
    display: none;
}

.gbt-sticky-cart-mobile-drawer {
    display: none;
}

.gbt-accounts-header .gbt-btn {
    margin-top: 12px;
}

.gbt-account-meta {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--gbt-text-muted);
    font-size: 14px;
}

.gbt-account-meta li { margin: 0; }

/* Extension Status */
.gbt-extension-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--gbt-border);
    background: var(--gbt-white);
    font-size: 13px;
    color: var(--gbt-text-muted);
}

.gbt-extension-indicator .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

body.gbt-extension-ready .gbt-extension-indicator {
    color: #155724;
    border-color: #c3e6cb;
    background: #d4edda;
}

body.gbt-extension-ready .gbt-extension-indicator .dashicons {
    color: #2e7d32;
}

.gbt-extension-ready-text { display: none; }
.gbt-extension-missing-text { display: inline; }
.gbt-extension-outdated-text { display: none; }

body.gbt-extension-ready .gbt-extension-ready-text { display: inline; }
body.gbt-extension-ready .gbt-extension-missing-text { display: none; }
body.gbt-extension-ready .gbt-extension-outdated-text { display: none; }

body.gbt-extension-outdated .gbt-extension-indicator {
    color: #7a5600;
    border-color: #ffe08a;
    background: #fff3cd;
}

body.gbt-extension-outdated .gbt-extension-indicator .dashicons {
    color: #b07b00;
}

body.gbt-extension-outdated .gbt-extension-outdated-text { display: inline; }
body.gbt-extension-outdated .gbt-extension-ready-text { display: none; }
body.gbt-extension-outdated .gbt-extension-missing-text { display: none; }

body.gbt-extension-not-ready .gbt-open-tool { display: none; }
body.gbt-extension-outdated .gbt-open-tool { display: none; }
body.gbt-extension-not-ready .gbt-extension-banner { display: block; }
body.gbt-extension-outdated .gbt-extension-banner { display: block; }
body.gbt-extension-ready .gbt-extension-banner { display: none; }
body.gbt-extension-not-ready .gbt-my-tools-page .gbt-tools-grid { display: none; }

.gbt-extension-banner {
    display: none;
    margin: 0 auto 24px;
    max-width: 680px;
    padding: 14px 18px;
    border-radius: var(--gbt-radius);
    background: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
    text-align: center;
}

.gbt-extension-banner .gbt-extension-missing-text {
    display: block;
}

.gbt-extension-banner .gbt-extension-outdated-text {
    display: none;
}

body.gbt-extension-outdated .gbt-extension-banner .gbt-extension-outdated-text {
    display: block;
}

body.gbt-extension-outdated .gbt-extension-banner .gbt-extension-missing-text {
    display: none;
}

.gbt-version-inline {
    margin-left: 6px;
    font-weight: 600;
}

.gbt-extension-download-link {
    display: none;
    margin-top: 10px;
}

.gbt-extension-download-link.is-visible {
    display: inline-flex;
}

/* Account selector */
.gbt-account-selector {
    margin-top: 15px;
}

.gbt-account-selector label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
}

.gbt-account-selector select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    font-size: 14px;
    background: var(--gbt-white);
}

.gbt-tool-card-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 15px 20px;
    background: var(--gbt-bg);
    border-top: 1px solid var(--gbt-border);
}

.gbt-tool-card-footer .gbt-text-muted {
    margin-left: 12px;
    font-size: 13px;
}

.gbt-cart-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
    width: 100%;
}

.gbt-cart-actions select {
    min-width: 180px;
    padding: 8px 10px;
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    background: var(--gbt-white);
}

/* Availability */
.gbt-availability-bar {
    width: 100%;
    height: 8px;
    background: #e9ecef;
    border-radius: 20px;
    margin-top: 12px;
    overflow: hidden;
}

.gbt-availability-fill {
    height: 100%;
    background: var(--gbt-primary);
}

.gbt-badge-active {
    background: #d4edda;
    color: #155724;
    margin-top: 10px;
}

.gbt-badge-full {
    background: #f8d7da;
    color: #721c24;
    margin-top: 10px;
}

/* Empty state */
.gbt-empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--gbt-bg);
    border-radius: var(--gbt-radius);
}

.gbt-empty-state .dashicons {
    font-size: 48px;
    width: 48px;
    height: 48px;
    color: var(--gbt-text-muted);
    margin-bottom: 15px;
}

.gbt-empty-state h3 { margin: 0 0 10px; }
.gbt-empty-state p { margin: 0; color: var(--gbt-text-muted); }

/* Modals */
.gbt-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 100000;
    display: none;
    align-items: center;
    justify-content: center;
}

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

.gbt-modal-content {
    background: var(--gbt-white);
    border-radius: var(--gbt-radius);
    max-width: 450px;
    width: 90%;
    max-height: 80vh;
    overflow: auto;
}

.gbt-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--gbt-border);
}

.gbt-modal-header h3 { margin: 0; }

.gbt-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gbt-text-muted);
    padding: 0;
    line-height: 1;
}

.gbt-modal-body { padding: 20px; }
.gbt-modal-body p { margin: 0; }

.gbt-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 20px;
    border-top: 1px solid var(--gbt-border);
}

/* Checkout */
.gbt-checkout-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px;
}

.gbt-checkout-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.gbt-checkout-card {
    background: var(--gbt-white);
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    box-shadow: var(--gbt-shadow);
    padding: 24px;
}

.gbt-checkout-card h2 {
    margin: 0 0 16px;
    font-size: 20px;
}

.gbt-checkout-summary {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.gbt-checkout-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 14px;
    color: var(--gbt-text-muted);
}

.gbt-checkout-row strong {
    color: var(--gbt-text);
}

.gbt-plan-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
}

.gbt-plan-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border-radius: var(--gbt-radius);
    border: 1px solid var(--gbt-border);
    cursor: pointer;
    background: var(--gbt-bg);
}

.gbt-plan-option input {
    margin: 0;
}

.gbt-plan-option span {
    display: flex;
    justify-content: space-between;
    width: 100%;
    font-size: 14px;
}

.gbt-order-code {
    margin-top: 10px;
}

.gbt-order-code-row {
    display: flex;
    gap: 10px;
    margin-top: 6px;
}

.gbt-order-code-row input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    font-size: 14px;
    background: var(--gbt-white);
}

.gbt-cart-table select {
    min-width: 180px;
    padding: 7px 9px;
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    background: var(--gbt-white);
}

.gbt-cart-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.gbt-payment-options {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-top: 16px;
}

.gbt-payment-option h3 {
    margin: 0 0 10px;
    font-size: 16px;
}

.gbt-qr-image {
    width: 100%;
    max-width: 240px;
    border-radius: var(--gbt-radius);
    border: 1px solid var(--gbt-border);
    margin-bottom: 10px;
}

.gbt-qr-placeholder {
    padding: 20px;
    text-align: center;
    border: 1px dashed var(--gbt-border);
    border-radius: var(--gbt-radius);
    background: var(--gbt-bg);
    margin-bottom: 10px;
    color: var(--gbt-text-muted);
}

/* Orders */
.gbt-orders-table-wrap {
    background: var(--gbt-white);
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    box-shadow: var(--gbt-shadow);
    overflow-x: auto;
}

.gbt-orders-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 960px;
}

.gbt-orders-table th,
.gbt-orders-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--gbt-border);
    text-align: left;
    vertical-align: middle;
    font-size: 14px;
}

.gbt-orders-table th {
    background: var(--gbt-bg);
    font-size: 13px;
    font-weight: 600;
    color: var(--gbt-text-muted);
}

.gbt-orders-table tbody tr:last-child td {
    border-bottom: none;
}

.gbt-orders-table .gbt-order-code-row {
    margin-top: 0;
    align-items: center;
}

/* Extension changelog */
.gbt-extension-changelog-page {
    max-width: 980px;
}

.gbt-extension-changelog-page .gbt-tools-header {
    text-align: left;
    margin-bottom: 24px;
}

.gbt-extension-changelog-page .gbt-tools-header h1 {
    margin-bottom: 8px;
    letter-spacing: -0.4px;
}

.gbt-extension-changelog-page .gbt-tools-header p {
    font-size: 15px;
    line-height: 1.5;
}

.gbt-changelog-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.gbt-changelog-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 16px;
    margin-bottom: 14px;
}

.gbt-changelog-year-form {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.gbt-changelog-year-form label {
    font-size: 13px;
    font-weight: 600;
    color: var(--gbt-text-muted);
}

.gbt-changelog-year-form select {
    min-width: 110px;
    padding: 7px 10px;
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    background: var(--gbt-white);
    font-size: 14px;
    color: var(--gbt-text);
}

.gbt-changelog-fallback-note {
    margin: 0;
    font-size: 13px;
    color: var(--gbt-text-muted);
}

.gbt-changelog-summary-label,
.gbt-changelog-summary-latest {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border: 1px solid var(--gbt-border);
    border-radius: 999px;
    background: var(--gbt-white);
    color: var(--gbt-text-muted);
    font-size: 12px;
    font-weight: 600;
}

.gbt-changelog-timeline {
    position: relative;
    padding-left: 34px;
}

.gbt-changelog-timeline::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 4px;
    bottom: 4px;
    width: 2px;
    background: linear-gradient(180deg, #0073aa 0%, #c7d7df 35%, #ccd0d4 100%);
}

.gbt-release {
    position: relative;
    margin-bottom: 20px;
}

.gbt-release:last-child {
    margin-bottom: 0;
}

.gbt-release-marker {
    position: absolute;
    left: -28px;
    top: 18px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #0073aa;
    border: 2px solid var(--gbt-white);
    box-shadow: 0 0 0 1px #0073aa;
}

.gbt-release-card {
    background: var(--gbt-white);
    border: 1px solid var(--gbt-border);
    border-radius: var(--gbt-radius);
    box-shadow: var(--gbt-shadow);
    padding: 18px 20px;
}

.gbt-release.is-latest .gbt-release-card {
    border-color: #77adc7;
    box-shadow: 0 4px 12px rgba(0, 115, 170, 0.16);
}

.gbt-release.is-latest .gbt-release-marker {
    background: #2e7d32;
    box-shadow: 0 0 0 1px #2e7d32;
}

.gbt-release-head {
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e8ecef;
}

.gbt-release-title {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.gbt-release-version {
    margin: 0;
    font-size: 22px;
    line-height: 1.15;
    letter-spacing: -0.2px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.gbt-release-meta {
    margin-top: 8px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 14px;
    color: var(--gbt-text-muted);
    font-size: 13px;
}

.gbt-release-name {
    color: var(--gbt-text);
    font-weight: 600;
}

.gbt-release-date {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.gbt-release-body {
    display: grid;
    gap: 10px;
}

.gbt-release-section {
    border-left: 3px solid var(--gbt-border);
    border-radius: 6px;
    background: #f8fafb;
    padding: 10px 12px;
}

.gbt-release-section h3 {
    margin: 0 0 8px;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gbt-text-muted);
}

.gbt-release-section ul {
    margin: 0;
    padding-left: 18px;
}

.gbt-release-section li {
    margin: 0 0 6px;
    font-size: 14px;
    line-height: 1.45;
}

.gbt-release-section li:last-child {
    margin-bottom: 0;
}

.gbt-release-section-added {
    border-left-color: #2e7d32;
    background: #f1fbf2;
}

.gbt-release-section-changed {
    border-left-color: #0b6b98;
    background: #f2f8fc;
}

.gbt-release-section-fixed {
    border-left-color: #986600;
    background: #fff9ec;
}

.gbt-release-section-removed {
    border-left-color: #b42318;
    background: #fff4f3;
}

.gbt-release-section-security {
    border-left-color: #8a2f00;
    background: #fff5eb;
}

.gbt-release-section-notes {
    border-left-color: #7a838a;
    background: #f6f8f9;
}

/* Responsive */
@media (max-width: 768px) {
    .gbt-tools-header h1 { font-size: 24px; }
    .gbt-tools-grid { grid-template-columns: 1fr; }
    .gbt-cart-actions {
        justify-content: flex-start;
    }
    .gbt-cart-actions select {
        min-width: 0;
        width: 100%;
    }
    .gbt-cart-footer {
        justify-content: flex-start;
    }
    .gbt-extension-changelog-page {
        padding: 28px 14px;
    }
    .gbt-changelog-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .gbt-changelog-year-form {
        width: 100%;
    }
    .gbt-changelog-year-form select {
        flex: 1;
        min-width: 0;
    }
    .gbt-changelog-timeline {
        padding-left: 24px;
    }
    .gbt-changelog-timeline::before {
        left: 8px;
    }
    .gbt-release-marker {
        left: -20px;
        top: 16px;
        width: 10px;
        height: 10px;
    }
    .gbt-release-card {
        padding: 14px;
    }
    .gbt-release-version {
        font-size: 19px;
    }
}

@media (max-width: 1024px) {
    .gbt-cart-edge-tab,
    .gbt-cart-edge-drawer {
        display: none;
    }

    body.gbt-cart-edge-open .gbt-cart-edge-drawer {
        display: none;
    }

    .gbt-sticky-cart-mobile-bar {
        display: block;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 10001;
        padding: 10px 12px;
        background: rgba(255, 255, 255, 0.95);
        border-top: 1px solid var(--gbt-border);
        backdrop-filter: blur(4px);
    }

    .gbt-sticky-cart-toggle {
        width: 100%;
        border: 1px solid var(--gbt-border);
        border-radius: var(--gbt-radius);
        background: var(--gbt-primary);
        color: var(--gbt-white);
        padding: 10px 12px;
        font-weight: 600;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 10px;
    }

    .gbt-sticky-cart-mobile-drawer {
        display: none;
    }

    body.gbt-cart-drawer-open .gbt-sticky-cart-mobile-drawer {
        display: block;
    }

    .gbt-sticky-cart-overlay {
        position: fixed;
        inset: 0;
        border: none;
        padding: 0;
        margin: 0;
        background: rgba(0, 0, 0, 0.45);
        z-index: 10002;
    }

    .gbt-sticky-cart-panel {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 10003;
        background: var(--gbt-white);
        border-top-left-radius: 12px;
        border-top-right-radius: 12px;
        box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.2);
        max-height: 72vh;
        display: flex;
        flex-direction: column;
    }

    .gbt-sticky-cart-close {
        border: none;
        background: transparent;
        font-size: 24px;
        line-height: 1;
        cursor: pointer;
        color: var(--gbt-text-muted);
    }

    body.gbt-cart-ui-enabled .gbt-tools-page,
    body.gbt-cart-ui-enabled .gbt-checkout-page,
    body.gbt-cart-ui-enabled .gbt-auth-page {
        padding-bottom: 88px;
    }
}