/* ============================================
   DemoHub — Design System
   Clean, white, tech-inspired (ModelScope / HuggingFace)
   ============================================ */

:root {
    --color-primary: #4F46E5;
    --color-primary-hover: #4338CA;
    --color-primary-light: #EEF2FF;
    --color-primary-50: #E0E7FF;

    --color-bg: #FFFFFF;
    --color-bg-alt: #F9FAFB;
    --color-bg-hover: #F3F4F6;

    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;

    --color-text: #1F2937;
    --color-text-secondary: #6B7280;
    --color-text-tertiary: #9CA3AF;
    --color-text-inverse: #FFFFFF;

    --color-success: #059669;
    --color-success-bg: #ECFDF5;
    --color-danger: #DC2626;
    --color-danger-bg: #FEF2F2;
    --color-warning: #D97706;
    --color-warning-bg: #FFFBEB;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.06), 0 4px 8px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.08);

    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji",
        "Segoe UI Emoji";
    --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", Menlo,
        Monaco, Consolas, monospace;

    --header-height: 56px;
    --container-max: 1200px;
    --transition: 0.2s ease;
}

/* ── Reset ─────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

img,
svg {
    display: block;
    max-width: 100%;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

ul,
ol {
    list-style: none;
}

/* ── Layout ────────────────────────────── */
#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#app-main {
    flex: 1;
    margin-top: var(--header-height);
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Typography ────────────────────────── */
h1 {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
}

h3 {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
}

/* ── Header ────────────────────────────── */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-height);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.92);
}

.header-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 32px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.header-logo svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.header-nav a {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition);
    white-space: nowrap;
}

.header-nav a:hover {
    color: var(--color-text);
    background: var(--color-bg-hover);
}

.header-nav a.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
    position: relative;
}

.header-user:hover {
    background: var(--color-bg-hover);
}

.header-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    min-width: 160px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 4px;
    display: none;
    z-index: 200;
}

.user-dropdown.show {
    display: block;
}

.user-dropdown a,
.user-dropdown button {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: none;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-align: left;
}

.user-dropdown a:hover,
.user-dropdown button:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.user-dropdown .danger {
    color: var(--color-danger);
}

.user-dropdown .danger:hover {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

/* ── Buttons ───────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.4;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg-hover);
    border-color: var(--color-text-tertiary);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.btn-danger {
    background: var(--color-danger);
    color: var(--color-text-inverse);
    border-color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
    background: #B91C1C;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
}

.btn-icon {
    padding: 6px;
    border: none;
    background: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

/* ── Form ──────────────────────────────── */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-input {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

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

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input:disabled {
    background: var(--color-bg-alt);
    cursor: not-allowed;
}

.input-row {
    display: flex;
    gap: 8px;
}

.input-row .form-input {
    flex: 1;
}

/* ── Auth Page ─────────────────────────── */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height));
    padding: 40px 24px;
    background: var(--color-bg-alt);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px 32px;
    border: 1px solid var(--color-border-light);
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo h1 {
    font-size: 1.5rem;
    margin-top: 12px;
}

.auth-logo p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.auth-logo svg {
    margin: 0 auto;
}

.auth-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--color-border);
}

.auth-tab {
    flex: 1;
    padding: 10px 0;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    margin-bottom: -1px;
}

.auth-tab:hover {
    color: var(--color-text);
}

.auth-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-submit {
    width: 100%;
    margin-top: 8px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.auth-footer a {
    color: var(--color-primary);
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.code-btn {
    width: 120px;
    flex-shrink: 0;
}

.password-form-title {
    text-align: center;
    margin-bottom: 24px;
}

.password-form-title h2 {
    font-size: 1.25rem;
}

.password-form-title p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

/* ── Home Hero ─────────────────────────── */
.home-hero {
    padding: 48px 0 36px;
    text-align: center;
    background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.home-hero h1 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.home-hero .subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-top: 8px;
    font-weight: 400;
}

.search-wrapper {
    max-width: 560px;
    margin: 28px auto 0;
    position: relative;
}

.search-bar {
    width: 100%;
    height: 44px;
    padding: 0 44px 0 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    color: var(--color-text);
    outline: none;
    transition: all var(--transition);
    box-shadow: var(--shadow-xs);
}

.search-bar::placeholder {
    color: var(--color-text-tertiary);
}

.search-bar:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light), var(--shadow-sm);
}

.search-icon {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-tertiary);
    pointer-events: none;
}

.search-icon svg {
    width: 18px;
    height: 18px;
}

/* ── Section ───────────────────────────── */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.section-title {
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

/* ── Card Grid ─────────────────────────── */
.card-section {
    padding: 0 0 60px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
}

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

.card-preview {
    position: relative;
    width: 100%;
    padding-top: 62.5%;
    overflow: hidden;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border-light);
}

.card-preview iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 400%;
    height: 400%;
    transform: scale(0.25);
    transform-origin: top left;
    border: none;
    pointer-events: none;
}

.card-preview .preview-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
}

.card-preview .preview-placeholder svg {
    width: 40px;
    height: 40px;
    opacity: 0.4;
}

.card-body {
    padding: 14px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 8px;
}

.card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: auto;
}

.card-author {
    display: flex;
    align-items: center;
    gap: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-author svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    opacity: 0.6;
}

.card-stats {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.card-stat {
    display: flex;
    align-items: center;
    gap: 3px;
}

.card-stat svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

/* ── Detail Page ───────────────────────── */
.detail-page {
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--header-height));
}

.detail-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    flex-shrink: 0;
    gap: 16px;
}

.detail-info {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    flex: 1;
}

.detail-back {
    flex-shrink: 0;
}

.detail-title {
    font-size: 1rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.detail-author-label {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    flex-shrink: 0;
}

.detail-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.detail-stat-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-bg);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.detail-stat-btn svg {
    width: 16px;
    height: 16px;
}

.detail-stat-btn:hover {
    border-color: var(--color-text-tertiary);
    color: var(--color-text);
    background: var(--color-bg-hover);
}

.detail-stat-btn.starred {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.detail-stat-btn.starred svg {
    fill: currentColor;
}

.detail-view-count {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
}

.detail-view-count svg {
    width: 16px;
    height: 16px;
}

.detail-iframe-container {
    flex: 1;
    position: relative;
    background: var(--color-bg-alt);
}

.detail-iframe-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    position: absolute;
    inset: 0;
}

/* ── Publish Page ──────────────────────── */
.publish-page {
    padding: 40px 0 60px;
}

.publish-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
}

.publish-card h2 {
    margin-bottom: 28px;
}

.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--color-bg-alt);
    position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.upload-zone input[type="file"] {
    display: none;
}

.upload-zone svg {
    margin: 0 auto 12px;
    color: var(--color-text-tertiary);
}

.upload-zone p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.upload-zone .upload-hint {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    margin-top: 4px;
}

.upload-file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary-50);
    border-radius: var(--radius);
    margin-top: 16px;
    font-size: 0.875rem;
}

.upload-file-info svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.upload-file-info .file-name {
    flex: 1;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.upload-file-info .file-size {
    color: var(--color-text-secondary);
    flex-shrink: 0;
}

.upload-file-info .file-remove {
    cursor: pointer;
    color: var(--color-text-secondary);
    flex-shrink: 0;
    padding: 2px;
    border-radius: var(--radius-sm);
}

.upload-file-info .file-remove:hover {
    color: var(--color-danger);
    background: var(--color-danger-bg);
}

.publish-actions {
    margin-top: 28px;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.publish-progress {
    margin-top: 20px;
}

.progress-bar {
    height: 6px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: 6px;
    text-align: center;
}

/* ── My Works Page ─────────────────────── */
.my-works-page {
    padding: 32px 0 60px;
}

.my-works-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.works-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.work-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.work-item:hover {
    border-color: var(--color-text-tertiary);
    box-shadow: var(--shadow-sm);
}

.work-preview-thumb {
    width: 120px;
    height: 75px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--color-bg-alt);
    flex-shrink: 0;
    position: relative;
    border: 1px solid var(--color-border-light);
}

.work-preview-thumb iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 480px;
    height: 300px;
    transform: scale(0.25);
    transform-origin: top left;
    border: none;
    pointer-events: none;
}

.work-info {
    flex: 1;
    min-width: 0;
}

.work-title {
    font-size: 0.9375rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 4px;
}

.work-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.work-meta span {
    display: flex;
    align-items: center;
    gap: 3px;
}

.work-meta svg {
    width: 13px;
    height: 13px;
    opacity: 0.6;
}

.work-status {
    flex-shrink: 0;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.status-badge.published {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.status-badge.offline {
    background: var(--color-bg-alt);
    color: var(--color-text-tertiary);
}

.work-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

/* ── Pagination ────────────────────────── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 32px;
}

.pagination button {
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.pagination button:hover:not(:disabled):not(.active) {
    background: var(--color-bg-hover);
    border-color: var(--color-text-tertiary);
}

.pagination button.active {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ── Toast ─────────────────────────────── */
#toast-container {
    position: fixed;
    top: 72px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    min-width: 280px;
    max-width: 420px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    font-size: 0.875rem;
    pointer-events: auto;
    animation: toastIn 0.3s ease;
}

.toast.removing {
    animation: toastOut 0.25s ease forwards;
}

.toast svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.toast-success {
    border-left: 3px solid var(--color-success);
}

.toast-success svg {
    color: var(--color-success);
}

.toast-error {
    border-left: 3px solid var(--color-danger);
}

.toast-error svg {
    color: var(--color-danger);
}

.toast-info {
    border-left: 3px solid var(--color-primary);
}

.toast-info svg {
    color: var(--color-primary);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(40px);
    }
}

/* ── Loading ───────────────────────────── */
.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ── Empty State ───────────────────────── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-secondary);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    opacity: 0.3;
}

.empty-state p {
    font-size: 0.9375rem;
    margin-bottom: 16px;
}

/* ── Modal ─────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: modalFadeIn 0.25s ease;
}

.modal-overlay.closing {
    animation: modalFadeOut 0.2s ease forwards;
}

.modal-content {
    width: 100%;
    max-width: 420px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 36px 32px;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

.modal-overlay.closing .modal-content {
    animation: modalSlideOut 0.2s ease forwards;
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    color: var(--color-text-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.modal-close svg {
    width: 18px;
    height: 18px;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modalFadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes modalSlideIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes modalSlideOut {
    from { opacity: 1; transform: scale(1) translateY(0); }
    to { opacity: 0; transform: scale(0.95) translateY(10px); }
}

/* ── Card Entrance Animation ──────────── */
.card-grid.animated .card {
    opacity: 0;
    transform: translateY(28px);
}

.card-grid.animated .card.animate-in {
    animation: cardSlideIn 0.5s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

@keyframes cardSlideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Featured Section ─────────────────── */
.featured-section {
    padding: 0 0 32px;
}

.featured-wrapper {
    position: relative;
}

.featured-track {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    -ms-overflow-style: none;
    scrollbar-width: none;
    padding: 4px 0 8px;
}

.featured-track::-webkit-scrollbar {
    display: none;
}

.featured-card {
    min-width: 300px;
    height: 170px;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    flex-shrink: 0;
    scroll-snap-align: start;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.featured-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.featured-card-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.featured-card-bg iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 400%;
    height: 400%;
    transform: scale(0.25);
    transform-origin: top left;
    border: none;
    pointer-events: none;
}

.featured-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.65) 0%, rgba(0, 0, 0, 0.1) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 18px 20px;
    color: white;
}

.featured-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.featured-card-stats {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.75rem;
    opacity: 0.85;
}

.featured-card-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.featured-card-stats svg {
    width: 13px;
    height: 13px;
}

.scroll-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition);
    opacity: 0;
}

.featured-wrapper:hover .scroll-btn {
    opacity: 1;
}

.scroll-btn:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-text-tertiary);
    color: var(--color-text);
}

.scroll-btn.prev {
    left: -8px;
}

.scroll-btn.next {
    right: -8px;
}

/* ── Responsive ────────────────────────── */
@media (max-width: 768px) {
    :root {
        --header-height: 52px;
    }

    .header-nav {
        display: none;
    }

    .home-hero {
        padding: 32px 0 24px;
    }

    .home-hero h1 {
        font-size: 1.75rem;
    }

    .card-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 16px;
    }

    .featured-card {
        min-width: 260px;
        height: 150px;
    }

    .auth-card,
    .modal-content {
        padding: 32px 24px;
    }

    .detail-toolbar {
        padding: 10px 16px;
        flex-wrap: wrap;
    }

    .publish-card {
        padding: 28px 20px;
    }

    .work-item {
        flex-wrap: wrap;
    }

    .work-preview-thumb {
        width: 100%;
        height: 120px;
    }

    .work-preview-thumb iframe {
        width: 200%;
        height: 200%;
        transform: scale(0.5);
    }

    .work-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

@media (max-width: 480px) {
    .card-grid {
        grid-template-columns: 1fr;
    }

    .detail-actions {
        flex-wrap: wrap;
    }
}