/* --------------------------------------------------------------------------
   Design tokens — dark (default) & light themes
   -------------------------------------------------------------------------- */

:root {
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-pill: 999px;
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
    --transition: 0.18s ease;
}

html[data-theme="dark"] {
    color-scheme: dark;
    --bg-page: #070a12;
    --bg-page-mid: #0c1222;
    --bg-elevated: rgba(17, 24, 39, 0.72);
    --bg-card: rgba(15, 23, 42, 0.88);
    --bg-card-hover: rgba(30, 41, 59, 0.95);
    --bg-input: rgba(3, 7, 18, 0.75);
    --bg-nav: rgba(15, 23, 42, 0.85);
    --bg-thumb-label: rgba(0, 0, 0, 0.55);
    --border: rgba(51, 65, 85, 0.65);
    --border-strong: rgba(71, 85, 105, 0.85);
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --accent: #38bdf8;
    --accent-dim: #0ea5e9;
    --accent-soft: rgba(56, 189, 248, 0.14);
    --accent-glow: rgba(14, 165, 233, 0.35);
    --danger: #f87171;
    --danger-soft: rgba(248, 113, 113, 0.12);
    --success: #34d399;
    --success-soft: rgba(52, 211, 153, 0.12);
    --error: #fca5a5;
    --shadow-main: 0 4px 6px -1px rgba(0, 0, 0, 0.35), 0 24px 48px -12px rgba(0, 0, 0, 0.55);
    --shadow-card-hover: 0 20px 50px -12px rgba(0, 0, 0, 0.65);
    --gradient-page: radial-gradient(ellipse 120% 80% at 50% -20%, rgba(30, 58, 138, 0.35) 0%, transparent 50%),
        radial-gradient(ellipse 80% 50% at 100% 0%, rgba(14, 116, 144, 0.12) 0%, transparent 45%),
        linear-gradient(180deg, #070a12 0%, #030712 100%);
    --gradient-main: linear-gradient(165deg, rgba(30, 41, 59, 0.55) 0%, rgba(3, 7, 18, 0.92) 100%);
    --gradient-card: radial-gradient(ellipse 100% 80% at 0% 0%, rgba(56, 189, 248, 0.08) 0%, transparent 55%);
    --link: #7dd3fc;
    --link-hover: #bae6fd;
    --focus-ring: rgba(56, 189, 248, 0.45);
}

html[data-theme="light"] {
    color-scheme: light;
    --bg-page: #f1f5f9;
    --bg-page-mid: #e2e8f0;
    --bg-elevated: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-input: #ffffff;
    --bg-nav: rgba(255, 255, 255, 0.92);
    --bg-thumb-label: rgba(15, 23, 42, 0.65);
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --text: #0f172a;
    --text-muted: #64748b;
    --accent: #0284c7;
    --accent-dim: #0369a1;
    --accent-soft: rgba(2, 132, 199, 0.1);
    --accent-glow: rgba(2, 132, 199, 0.2);
    --danger: #dc2626;
    --danger-soft: rgba(220, 38, 38, 0.08);
    --success: #059669;
    --success-soft: rgba(5, 150, 105, 0.1);
    --error: #b91c1c;
    --shadow-main: 0 1px 3px rgba(15, 23, 42, 0.06), 0 12px 32px -8px rgba(15, 23, 42, 0.1);
    --shadow-card-hover: 0 16px 40px -12px rgba(15, 23, 42, 0.14);
    --gradient-page: radial-gradient(ellipse 100% 60% at 50% -10%, rgba(186, 230, 253, 0.9) 0%, transparent 55%),
        linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    --gradient-main: linear-gradient(165deg, #ffffff 0%, #f8fafc 100%);
    --gradient-card: radial-gradient(ellipse 80% 60% at 0% 0%, rgba(14, 165, 233, 0.06) 0%, transparent 50%);
    --link: #0284c7;
    --link-hover: #0369a1;
    --focus-ring: rgba(2, 132, 199, 0.35);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--gradient-page);
    background-color: var(--bg-page);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.22s ease, color 0.22s ease;
}

::selection {
    background: var(--accent-soft);
    color: var(--text);
}

a {
    color: var(--link);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.15em;
}

a:hover {
    color: var(--link-hover);
}

.app-shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 1.25rem 2rem;
}

/* Header ---------------------------------------------------------------- */

.app-header {
    margin-bottom: 1.25rem;
}

.app-header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo-link {
    text-decoration: none;
    color: inherit;
    border-radius: var(--radius);
    outline-offset: 3px;
}

.logo-link:focus-visible {
    outline: 2px solid var(--focus-ring);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.logo-mark {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-pill);
    background: linear-gradient(145deg, #7dd3fc 0%, var(--accent) 45%, #1d4ed8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.logo-text-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.logo-text {
    font-weight: 700;
    letter-spacing: 0.02em;
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.2;
}

.logo-sub {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

.theme-toggle {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: var(--text-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition), border-color var(--transition), color var(--transition), transform 0.12s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    color: var(--text);
    border-color: var(--border-strong);
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

/* Dark UI → show sun (switch to light). Light UI → show moon (switch to dark). */
html[data-theme="dark"] .theme-icon-moon {
    display: none;
}

html[data-theme="light"] .theme-icon-sun {
    display: none;
}

.theme-icon {
    flex-shrink: 0;
}

/* Nav -------------------------------------------------------------------- */

.app-nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.35rem;
    padding: 0.35rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    -webkit-overflow-scrolling: touch;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.app-nav::-webkit-scrollbar {
    height: 4px;
}

.app-nav::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 4px;
}

.app-nav a {
    flex: 0 0 auto;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.78rem;
    font-weight: 500;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-pill);
    white-space: nowrap;
    transition: background var(--transition), color var(--transition);
}

.app-nav a:hover {
    background: var(--accent-soft);
    color: var(--text);
}

.app-nav a.active {
    background: var(--accent-soft);
    color: var(--text);
    box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.12);
}

html[data-theme="light"] .app-nav a.active {
    box-shadow: inset 0 0 0 1px rgba(2, 132, 199, 0.15);
}

.app-nav a.logout {
    color: var(--danger);
    margin-left: 0.15rem;
}

.app-nav a.logout:hover {
    background: var(--danger-soft);
    color: var(--danger);
}

/* Main panel ------------------------------------------------------------- */

.app-main {
    background: var(--gradient-main);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: clamp(1.25rem, 3vw, 2rem);
    box-shadow: var(--shadow-main);
}

.page h1 {
    margin: 0 0 0.5rem;
    font-size: clamp(1.35rem, 2.5vw, 1.6rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.page > p:first-of-type {
    margin-top: 0;
    max-width: 52ch;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.page .lead {
    max-width: 62ch;
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0 0 1rem;
}

.page .lead a {
    color: var(--link);
}

.workflow-steps {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    align-items: center;
    list-style: none;
    margin: 0 0 1.5rem;
    padding: 0.65rem 1rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    font-size: 0.82rem;
    color: var(--text-muted);
}

.workflow-steps li {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.workflow-steps a {
    color: var(--link);
    text-decoration: none;
    font-weight: 600;
}

.workflow-steps a:hover {
    text-decoration: underline;
}

.workflow-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.35rem;
    height: 1.35rem;
    border-radius: var(--radius-pill);
    background: var(--accent-soft);
    color: var(--text);
    font-size: 0.72rem;
    font-weight: 700;
}

.form-section-title {
    margin: 1.25rem 0 0.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.01em;
}

/* API dashboard — provider switch (OpenAI / Gemini / local) */
.api-provider-fieldset {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.1rem 1.15rem;
    margin-bottom: 1.25rem;
    background: var(--bg-elevated);
}

.api-provider-legend {
    padding: 0 0.35rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}

.api-provider-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.65rem;
    margin-top: 0.65rem;
}

.api-provider-btn {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
    margin: 0;
    padding: 0.75rem 0.85rem;
    border-radius: var(--radius);
    border: 2px solid var(--border);
    background: var(--bg-card);
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.api-provider-btn__row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.api-provider-btn__row input {
    flex-shrink: 0;
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--accent);
}

.api-provider-btn:hover {
    border-color: var(--border-strong);
}

.api-provider-btn:has(input:checked) {
    border-color: var(--accent);
    background: var(--accent-soft);
    box-shadow: 0 0 0 1px var(--accent);
}

.api-provider-btn__title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text);
}

.api-provider-btn__sub {
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.35;
}

.form-api-config .form-section-title:first-of-type {
    margin-top: 0;
}

.checkbox-row-block {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
}

.page p {
    color: var(--text-muted);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.card-link {
    text-decoration: none;
    color: inherit;
    border-radius: var(--radius);
    outline-offset: 3px;
}

.card-link:focus-visible {
    outline: 2px solid var(--focus-ring);
}

.card {
    background: var(--gradient-card), var(--bg-card);
    border-radius: var(--radius);
    padding: 1.15rem 1.2rem;
    border: 1px solid var(--border);
    height: 100%;
    transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--border-strong);
    background: var(--bg-card-hover);
}

.card h2 {
    margin: 0 0 0.35rem;
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text);
}

.card p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Forms ------------------------------------------------------------------ */

.form {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: 0.75rem;
}

label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text);
    font-size: 0.88rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea {
    border-radius: var(--radius);
    resize: vertical;
    min-height: 8rem;
    line-height: 1.5;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.prompts-form .prompt-block {
    margin-bottom: 1.35rem;
}

.prompts-form .prompt-block h2 {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}

.btn {
    border-radius: var(--radius-pill);
    border: 0;
    padding: 0.62rem 1.35rem;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    text-decoration: none;
    transition: background 0.16s ease, box-shadow 0.16s ease, transform 0.12s ease;
}

.btn:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 100%);
    color: #fff;
    box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    filter: brightness(1.05);
}

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

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

.btn-small {
    padding: 0.38rem 0.85rem;
    font-size: 0.78rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
}

.btn-small:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
}

.btn-full {
    width: 100%;
}

.flash {
    border-radius: var(--radius-pill);
    padding: 0.65rem 1rem;
    font-size: 0.82rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.flash-success {
    background: var(--success-soft);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, 0.35);
}

html[data-theme="light"] .flash-success {
    color: #047857;
    border-color: rgba(5, 150, 105, 0.35);
}

.flash-error {
    background: var(--danger-soft);
    color: var(--error);
    border: 1px solid rgba(248, 113, 113, 0.4);
}

html[data-theme="light"] .flash-error {
    color: #b91c1c;
}

.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: min(72vh, 560px);
    padding: 1rem 0;
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--gradient-main);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-main);
}

.auth-card h1 {
    margin: 0 0 0.25rem;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.auth-lead {
    margin: 0 0 1.25rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.85rem 1rem;
    margin-top: 1rem;
}

.field-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.field-row input[type="number"] {
    flex: 1;
    min-width: 0;
}

.field-inline-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    min-width: 1rem;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text);
}

.checkbox-row input[type="checkbox"] {
    width: auto;
    accent-color: var(--accent);
}

.drop-zone {
    border-radius: var(--radius);
    border: 2px dashed var(--border-strong);
    padding: 1.75rem 1.25rem;
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    background: var(--gradient-card), var(--bg-card);
    position: relative;
    cursor: pointer;
    transition: border-color var(--transition), background 0.16s ease;
}

.drop-zone p {
    margin: 0;
    font-size: 0.9rem;
}

.drop-zone:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
}

.drop-zone.dragover {
    border-color: var(--accent);
    border-style: solid;
    box-shadow: 0 0 0 3px var(--accent-soft);
}

#photos-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-preview {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.75rem;
}

.upload-preview-item {
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-card);
    padding: 0.35rem;
}

.upload-preview-item img {
    width: 100%;
    display: block;
    border-radius: 8px;
}

.gallery-grid {
    margin-top: 1.25rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.gallery-item {
    border-radius: var(--radius);
    padding: 1rem;
    border: 1px solid var(--border);
    background: var(--gradient-card), var(--bg-card);
}

.thumb-row {
    display: flex;
    gap: 0.5rem;
}

.thumb {
    flex: 1;
    position: relative;
    min-width: 0;
}

.thumb-trigger {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    border-radius: var(--radius-sm);
    cursor: zoom-in;
    overflow: hidden;
    line-height: 0;
}

.thumb-trigger:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.thumb-trigger:hover img {
    opacity: 0.92;
}

.thumb img,
.thumb-trigger img {
    width: 100%;
    border-radius: var(--radius-sm);
    display: block;
    object-fit: cover;
    max-height: 160px;
}

.thumb-trigger img {
    transition: opacity 0.15s ease;
}

.thumb-label {
    position: absolute;
    inset: 0.4rem auto auto 0.4rem;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-pill);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    background: var(--bg-thumb-label);
    color: #fff;
}

.thumb.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    color: var(--text-muted);
    border: 1px dashed var(--border);
    border-radius: var(--radius-sm);
    min-height: 100px;
}

.meta {
    margin-top: 0.6rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.35rem;
}

.actions {
    margin-top: 0.65rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.results-actions {
    margin-bottom: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.hint {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.55;
}

.hint-tight {
    margin-top: 0.35rem;
}

.hint code {
    font-family: var(--font-mono);
    font-size: 0.82em;
    padding: 0.12rem 0.35rem;
    border-radius: 6px;
    background: var(--accent-soft);
    color: var(--text);
}

.page-actions {
    margin-bottom: 1rem;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.form-inline {
    display: inline;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-elevated);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    font-size: 0.88rem;
}

.data-table th,
.data-table td {
    padding: 0.8rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    background: var(--accent-soft);
    font-weight: 600;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.data-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.empty-state {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.log-viewer {
    margin: 1rem 0 0;
    padding: 1rem 1.1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.5;
    overflow-x: auto;
    max-height: min(70vh, 560px);
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

body.modal-open {
    overflow: hidden;
}

.image-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.image-modal[hidden] {
    display: none;
}

.image-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 23, 0.72);
    backdrop-filter: blur(6px);
}

html[data-theme="light"] .image-modal-backdrop {
    background: rgba(15, 23, 42, 0.45);
}

.image-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(96vw, 1200px);
    max-height: min(92vh, 900px);
    background: var(--gradient-main);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-main);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.image-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.image-modal-title {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}

.image-modal-close {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    border: 0;
    border-radius: var(--radius-pill);
    background: var(--accent-soft);
    color: var(--text);
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease;
}

.image-modal-close:hover {
    background: var(--border);
}

.image-modal-close:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.image-modal-body {
    padding: 0.75rem;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    min-height: 0;
}

#image-modal-img {
    max-width: 100%;
    max-height: min(78vh, 820px);
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-sm);
    vertical-align: middle;
}

/* Spyne-style studio tool nav ------------------------------------------------ */

.studio-tool-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin: 0 0 1.25rem;
    padding: 0;
    list-style: none;
}

.studio-tool-nav a {
    padding: 0.45rem 1rem;
    border-radius: var(--radius-pill);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
    border: 1px solid transparent;
    transition: background 0.15s ease, color 0.15s ease;
}

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

.studio-tool-nav a.active {
    color: var(--text);
    background: var(--accent-soft);
    border-color: var(--border-strong);
}

.studio-tool-nav-muted {
    opacity: 0.85;
}

/* Before / after compare slider -------------------------------------------- */

.compare-slider {
    margin: 0 0 0.75rem;
    user-select: none;
    touch-action: none;
}

.compare-slider__frame {
    position: relative;
    --split: 50;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-card);
}

.compare-slider__after {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    vertical-align: top;
}

.compare-slider__before-layer {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    height: 100%;
    width: calc(var(--split) * 1%);
    overflow: hidden;
    pointer-events: none;
}

.compare-slider__before-layer img {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: calc(100% * 100 / var(--split));
    max-width: none;
    object-fit: cover;
    object-position: left center;
}

.compare-slider__handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(var(--split) * 1%);
    z-index: 5;
    width: 44px;
    margin-left: -22px;
    cursor: ew-resize;
    display: flex;
    align-items: center;
    justify-content: center;
    touch-action: none;
}

.compare-slider__grip {
    display: block;
    width: 4px;
    height: min(72%, 200px);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35), 0 4px 20px rgba(0, 0, 0, 0.35);
}

.compare-slider__handle:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.compare-slider__tag {
    position: absolute;
    bottom: 0.5rem;
    z-index: 4;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-pill);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    pointer-events: none;
}

.compare-slider__tag--before {
    left: 0.5rem;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
}

.compare-slider__tag--after {
    right: 0.5rem;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
}

.compare-slider--gallery .compare-slider__frame {
    aspect-ratio: 4 / 3;
}

.drop-zone-hero {
    border-width: 2px;
    padding: 2rem 1.25rem;
    min-height: 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.page-upload-clean .drop-zone-hero {
    margin: 0;
}

.drop-zone-title {
    margin: 0 0 0.35rem;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
}

.drop-zone-sub {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.sample-strip {
    margin: 1rem 0 1.25rem;
}

.sample-strip-label {
    margin: 0 0 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.sample-strip-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.sample-thumb {
    padding: 0;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-card);
    transition: border-color 0.15s ease, transform 0.12s ease;
}

.sample-thumb:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.sample-thumb:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.sample-thumb img {
    display: block;
    width: 120px;
    height: 80px;
    object-fit: cover;
}

.compare-section {
    margin: 1rem 0 1.5rem;
}

.compare-section-label {
    margin: 0 0 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
}

.compare-hint {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.78rem;
}

.user-compare-wrap {
    margin-top: 1.25rem;
}

.upload-preview-thumbs {
    margin-top: 1rem;
}

/* Upload page — minimal layout ------------------------------------------------ */

.page-upload-clean .upload-page-header {
    margin-bottom: 1.5rem;
}

.page-upload-clean .upload-page-header h1 {
    margin: 0 0 0.35rem;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.page-upload-clean .lead {
    margin: 0;
    max-width: 42rem;
    font-size: 0.92rem;
    line-height: 1.55;
}

.upload-primary-card {
    display: grid;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
}

@media (min-width: 900px) {
    .upload-primary-card {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }

    .user-compare-wrap--inline:not([hidden]) {
        margin: 0;
    }
}

.user-compare-wrap--inline .compare-slider__frame {
    aspect-ratio: 4 / 3;
    max-height: 280px;
}

.compare-footnote {
    margin: 0.5rem 0 0;
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.form-section-optional {
    font-weight: 500;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: lowercase;
}

.form-grid-tight {
    gap: 0.65rem 1rem;
}

.upload-advanced {
    margin: 1.25rem 0;
    padding: 0.85rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
}

.upload-advanced summary {
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    list-style: none;
}

.upload-advanced summary::-webkit-details-marker {
    display: none;
}

.upload-advanced summary::before {
    content: "▸ ";
    display: inline-block;
    transition: transform 0.15s ease;
}

.upload-advanced[open] summary::before {
    transform: rotate(90deg);
}

.upload-advanced .hint {
    margin-top: 0.5rem;
}

.upload-advanced .form-grid {
    margin-top: 0.75rem;
}

.form-actions-upload {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.gallery-pending {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    aspect-ratio: 4 / 3;
    background: var(--bg-card);
}

.gallery-pending-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.thumb-label--overlay {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    z-index: 2;
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-pill);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    background: var(--bg-thumb-label);
    color: #fff;
}

.thumb-label--error {
    background: rgba(185, 28, 28, 0.92);
}

.gallery-error-msg {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2;
    margin: 0;
    padding: 0.5rem 0.65rem;
    font-size: 0.72rem;
    line-height: 1.35;
    color: var(--text);
    background: rgba(254, 242, 242, 0.96);
    border-top: 1px solid rgba(185, 28, 28, 0.35);
    max-height: 5.5rem;
    overflow: auto;
}

[data-theme="dark"] .gallery-error-msg {
    background: rgba(30, 20, 20, 0.96);
    border-top-color: rgba(248, 113, 113, 0.4);
}

@media (max-width: 768px) {
    .app-shell {
        padding: 1rem;
    }

    .app-main {
        padding: 1.15rem;
        border-radius: var(--radius);
    }

    .app-header-top {
        margin-bottom: 0.85rem;
    }

    .logo-mark {
        width: 36px;
        height: 36px;
    }
}

@media (max-width: 480px) {
    .app-nav {
        padding: 0.3rem;
        gap: 0.25rem;
    }

    .app-nav a {
        padding: 0.4rem 0.65rem;
        font-size: 0.74rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    body,
    .card,
    .btn,
    .theme-toggle,
    .app-nav a {
        transition: none !important;
    }
}