/* =========================================
   UMBRAIX AI — TRANSLATE STYLE v2026
   Fully synced with STYLE SYSTEM v2026
   "EDITORIAL CLARITY" — Solid, Sharp, Modern
   ========================================= */

/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Cascadia+Code:wght@400;500;600&display=swap');


/* =========================================
   :ROOT — LIGHT THEME (Default)
   ========================================= */
:root {
    /* 1. BRAND COLORS */
    --brand-primary: oklch(48% 0.18 268);
    --brand-hover:   oklch(42% 0.20 268);
    --brand-active:  oklch(38% 0.22 268);
    --brand-surface: oklch(96% 0.03 268);

    /* 2. SEMANTIC STATUS */
    --color-success: oklch(52% 0.16 148);
    --color-warning: oklch(62% 0.18 85);
    --color-error:   oklch(54% 0.20 25);
    --color-info:    oklch(54% 0.14 240);

    /* 3. BACKGROUNDS */
    --primary-bg:    oklch(99.5% 0.002 270);
    --bg-gradient:   none;

    /* Solid Surface Layers */
    --surface-0:     #ffffff;
    --surface-1:     #f8f9fb;
    --surface-2:     #f1f3f6;
    --surface-3:     #e8ebf0;
    --surface-hover: #eef0f4;
    --surface-input: #f4f5f8;

    /* Panel Backgrounds */
    --bg-panel:      #ffffff;
    --bg-panel-alt:  #f8f9fb;
    --bg-sidebar:    #f8f9fb;

    /* Code Block Surfaces */
    --code-bg:        #f4f5f8;
    --code-text:      oklch(28% 0.03 270);
    --hljs-bg:        #f8f9fb;
    --code-header-bg: #edf0f4;
    --code-border:    #dde1e8;

    --send-btn-color: #ffffff;

    /* 4. TYPOGRAPHY */
    --text-main:      oklch(12% 0.02 270);
    --text-secondary: oklch(28% 0.02 270);
    --text-muted:     oklch(46% 0.02 270);
    --text-dim:       oklch(60% 0.015 270);
    --text-disabled:  oklch(72% 0.01 270);

    /* Font Families */
    --font-display: 'Space Grotesk', -apple-system, sans-serif;
    --font-body:    'Manrope', -apple-system, sans-serif;
    --font-code:    'Cascadia Code', 'Fira Code', monospace;

    /* Font Scale */
    --text-xs:   0.75rem;
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.25rem;
    --text-2xl:  1.5rem;
    --text-3xl:  1.875rem;

    /* Line Heights */
    --leading-tight:   1.25;
    --leading-normal:  1.5;
    --leading-relaxed: 1.625;

    /* 5. BORDERS */
    --border-subtle: #e5e8ed;
    --border-medium: #d8dce4;
    --border-strong: #c6ccd6;
    --border-focus:  var(--brand-primary);

    /* 6. SHADOWS */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.07);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.09);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.10);
    --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.12);
    --shadow-brand: 0 4px 16px rgba(90, 60, 200, 0.14);

    /* 7. SPACING */
    --radius-xs:   0.375rem;
    --radius-sm:   0.75rem;
    --radius-md:   1rem;
    --radius-lg:   1.5rem;
    --radius-xl:   2rem;
    --radius-pill: 9999px;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;

    /* Containers */
    --container-sm:  640px;
    --container-md:  900px;
    --container-lg:  1100px;
    --container-xl:  1040px;

    /* Sidebar */
    --sidebar-width:      280px;
    --sidebar-transition: transform 0.35s cubic-bezier(0.215, 0.61, 0.355, 1);

    /* 8. EASING */
    --ease-out:    cubic-bezier(0.215, 0.61, 0.355, 1);
    --ease-in-out: cubic-bezier(0.645, 0.045, 0.355, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

    --transition-fast: 120ms;
    --transition-base: 220ms;
    --transition-slow: 340ms;

    --glass-blur: 0px;
    --glass-blur-strong: 0px;
    --glass-saturate: 100%;
}


/* =========================================
   [data-theme="dark"] — VELOX MIDNIGHT
   ========================================= */
[data-theme="dark"] {
    --brand-primary: oklch(68% 0.20 265);
    --brand-hover:   oklch(74% 0.21 265);
    --brand-active:  oklch(62% 0.22 265);
    --brand-surface: oklch(20% 0.06 265);

    --color-success: oklch(68% 0.20 148);
    --color-warning: oklch(78% 0.18 88);
    --color-error:   oklch(64% 0.22 25);
    --color-info:    oklch(68% 0.18 242);

    --primary-bg:  oklch(13% 0.014 272);
    --bg-gradient: none;

    --surface-0:     oklch(13% 0.014 272);
    --surface-1:     oklch(17% 0.016 272);
    --surface-2:     oklch(21% 0.018 272);
    --surface-3:     oklch(25% 0.020 272);
    --surface-hover: oklch(19% 0.017 272);
    --surface-input: oklch(16% 0.014 272);

    --bg-panel:     oklch(17% 0.016 272);
    --bg-panel-alt: oklch(20% 0.018 272);
    --bg-sidebar:   oklch(15% 0.015 272);

    --code-bg:        oklch(17% 0.016 272);
    --code-text:      oklch(88% 0.02 265);
    --hljs-bg:        oklch(14% 0.014 272);
    --code-header-bg: oklch(19% 0.017 272);
    --code-border:    oklch(26% 0.020 272);

    --send-btn-color: #ffffff;

    --text-main:      oklch(96% 0.01 265);
    --text-secondary: oklch(88% 0.02 265);
    --text-muted:     oklch(70% 0.025 265);
    --text-dim:       oklch(54% 0.02 265);
    --text-disabled:  oklch(40% 0.015 265);

    --border-subtle: oklch(24% 0.018 272);
    --border-medium: oklch(28% 0.020 272);
    --border-strong: oklch(34% 0.022 272);

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.30);
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.40);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.50);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.55);
    --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.60);
    --shadow-brand: 0 4px 16px rgba(100, 60, 230, 0.22);
}


/* =========================================
   [data-theme="void"] — ABSOLUTE VOID
   ========================================= */
[data-theme="void"] {
    --brand-primary: oklch(72% 0.22 265);
    --brand-hover:   oklch(78% 0.23 265);
    --brand-active:  oklch(66% 0.24 265);
    --brand-surface: oklch(15% 0.08 265);

    --color-success: oklch(70% 0.22 148);
    --color-warning: oklch(80% 0.20 88);
    --color-error:   oklch(66% 0.24 25);
    --color-info:    oklch(70% 0.20 242);

    --primary-bg:  #000000;
    --bg-gradient: none;

    --surface-0:     #000000;
    --surface-1:     #0d0d0d;
    --surface-2:     #161616;
    --surface-3:     #202020;
    --surface-hover: #141414;
    --surface-input: #0a0a0a;

    --bg-panel:     #0d0d0d;
    --bg-panel-alt: #111111;
    --bg-sidebar:   #080808;

    --code-bg:        #0d0d0d;
    --code-text:      oklch(90% 0.02 265);
    --hljs-bg:        #050505;
    --code-header-bg: #111111;
    --code-border:    #222222;

    --send-btn-color: #000000;

    --text-main:      #f5f5f5;
    --text-secondary: #d0d0d0;
    --text-muted:     #888888;
    --text-dim:       #555555;
    --text-disabled:  #383838;

    --border-subtle: #1e1e1e;
    --border-medium: #282828;
    --border-strong: #333333;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.70);
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.80);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.85);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.90);
    --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.95);
    --shadow-brand: 0 4px 20px rgba(140, 80, 255, 0.30);
}


/* =========================================
   RESET & BASE
   ========================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-main);
    line-height: var(--leading-tight);
}

body, p, input {
    font-family: var(--font-body);
    color: var(--text-muted);
    font-weight: 500;
}

code, pre { font-family: var(--font-code); }

button, a {
    font-family: var(--font-display);
    font-weight: 600;
    text-decoration: none;
}

/* =========================================
   BODY
   ========================================= */
body {
    background-color: var(--primary-bg);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    -webkit-tap-highlight-color: transparent;
}

input, textarea {
    -webkit-user-select: auto;
    user-select: auto;
}

/* =========================================
   KEYFRAMES
   ========================================= */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.35; }
}

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


/* =========================================
   FLOATING HEADER — Synced with main app
   ========================================= */
.translate-floating-header {
    position: fixed;
    top: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: var(--container-xl);
    z-index: 500;
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) 0;
    height: auto;
    min-height: 3.75rem;
    pointer-events: none;
}

/* Back button — mirrors .icon-btn.standalone from style.css */
.translate-back-btn {
    pointer-events: auto;
    width: 2.85rem;
    height: 2.85rem;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    background: var(--surface-0);
    color: var(--text-main);
    font-size: var(--text-base);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition-base) ease;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.translate-back-btn:hover {
    background: var(--surface-2);
    color: var(--brand-primary);
    border-color: var(--border-medium);
    transform: translateX(-2px);
    box-shadow: var(--shadow-md);
}

/* Center title pill — mirrors .header-right pill aesthetic */
.translate-header-title {
    pointer-events: none;
    position: static;
    left: 50%;
    transform: none;
    background: var(--surface-0);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-pill);
    padding: 0 1.35rem;
    height: 2.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.translate-header-title i {
    color: var(--brand-primary);
    font-size: var(--text-sm);
}

.translate-header-title span {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-main);
}

/* Right side header pill — mirrors .header-right from style.css */
.translate-header-right {
    pointer-events: auto;
    display: flex;
    justify-self: end;
    align-items: center;
    gap: 0.35rem;
    background: var(--surface-0);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-pill);
    padding: 0.45rem;
    box-shadow: var(--shadow-sm);
}

.translate-header-right .icon-btn {
    width: 2rem;
    height: 2rem;
    background: transparent;
    border: none;
    box-shadow: none;
    color: var(--text-muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-base);
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.translate-header-right .icon-btn:hover {
    background: var(--surface-2);
    color: var(--brand-primary);
    transform: scale(1.05);
}

.translate-header-right .icon-btn.active {
    background: var(--brand-surface);
    color: var(--brand-primary);
}


/* =========================================
   MAIN LAYOUT
   ========================================= */
.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 7rem var(--space-4) var(--space-5);
    gap: 1.25rem;
    max-width: var(--container-xl);
    margin: 0 auto;
    width: 100%;
}


/* =========================================
   KEY WARNING CARD
   ========================================= */
.key-warning-card {
    background: oklch(98% 0.01 25);
    border: 1px solid oklch(90% 0.05 25);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    box-shadow: var(--shadow-sm);
    animation: fadeInDown 0.4s var(--ease-out);
}

[data-theme="dark"] .key-warning-card,
[data-theme="void"] .key-warning-card {
    background: oklch(20% 0.04 25);
    border-color: oklch(30% 0.08 25);
}

.kw-icon {
    width: 3rem;
    height: 3rem;
    background: oklch(95% 0.08 25);
    color: var(--color-error);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

[data-theme="dark"] .kw-icon,
[data-theme="void"] .kw-icon {
    background: oklch(22% 0.06 25);
}

.kw-content { flex: 1; }

.kw-content strong {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.3rem;
}

.kw-content p {
    font-size: var(--text-sm);
    color: var(--text-muted);
    line-height: var(--leading-normal);
    margin: 0;
}

.kw-btn {
    background: var(--brand-primary);
    color: #ffffff;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast) ease;
    flex-shrink: 0;
    box-shadow: var(--shadow-brand);
}

.kw-btn:hover {
    background: var(--brand-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), var(--shadow-brand);
}


/* =========================================
   SETTINGS GRID
   ========================================= */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: var(--space-3);
    background: var(--surface-0);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.sg {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.sg > label {
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--text-dim);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ---- Custom Select ---- */
.custom-select {
    position: relative;
    width: 100%;
    user-select: none;
}

.select-trigger {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    padding: 0.65rem 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    transition: all var(--transition-fast) ease;
}

.select-trigger:hover {
    background: var(--surface-2);
    border-color: var(--border-medium);
}

.custom-select.active .select-trigger {
    border-color: var(--brand-primary);
    background: var(--surface-0);
    box-shadow: 0 0 0 3px oklch(from var(--brand-primary) l c h / 0.10);
}

.select-trigger i {
    font-size: 0.72rem;
    color: var(--text-dim);
    flex-shrink: 0;
    transition: transform var(--transition-base) ease;
}

.custom-select.active .select-trigger i {
    transform: rotate(180deg);
}

.select-options {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: all var(--transition-base) var(--ease-out);
    max-height: 260px;
    overflow-y: auto;
    padding: 0.4rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border-medium) transparent;
}

.custom-select.active .select-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.select-options::-webkit-scrollbar { width: 4px; }
.select-options::-webkit-scrollbar-track { background: transparent; }
.select-options::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 4px;
}

.option {
    padding: 0.6rem 0.8rem;
    font-size: var(--text-sm);
    font-family: var(--font-body);
    color: var(--text-secondary);
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.option:hover {
    background: var(--surface-2);
    color: var(--text-main);
}

.option.selected {
    background: var(--brand-surface);
    color: var(--brand-primary);
    font-weight: 600;
}

/* ---- Control Row (slider / toggle) ---- */
.ctrl-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.65rem 0.85rem;
    min-height: 42px;
    transition: border-color var(--transition-fast) ease;
}

.ctrl-row:focus-within {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px oklch(from var(--brand-primary) l c h / 0.08);
}

.ctrl-row input[type="range"] {
    flex: 1;
    accent-color: var(--brand-primary);
    cursor: pointer;
}

.ctrl-val {
    font-family: var(--font-code);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--brand-primary);
    min-width: 22px;
    text-align: right;
}

.ctrl-row > span {
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-weight: 500;
}

/* ---- Toggle Switch ---- */
.switch {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 18px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    inset: 0;
    background: var(--border-medium);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: background var(--transition-base) ease;
}

.slider::before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    left: 3px;
    top: 3px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-base) ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.20);
}

.switch input:checked + .slider {
    background: var(--brand-primary);
}

.switch input:checked + .slider::before {
    transform: translateX(16px);
}


/* =========================================
   ACTION ROW
   ========================================= */
.action-row {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

/* Base button — mirrors style.css .edit-btn / .modal-btn style */
.btn {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    border-radius: var(--radius-md);
    padding: 0.7rem 1.25rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast) var(--ease-out);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    letter-spacing: -0.01em;
}

/* Primary */
.btn-primary {
    background: var(--brand-primary);
    color: #ffffff;
    border-color: var(--brand-primary);
    box-shadow: var(--shadow-brand);
}

.btn-primary:hover:not(:disabled) {
    background: var(--brand-hover);
    border-color: var(--brand-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), var(--shadow-brand);
}

.btn-primary:active:not(:disabled) {
    background: var(--brand-active);
    border-color: var(--brand-active);
    transform: none;
    box-shadow: none;
}

.btn-primary:disabled {
    opacity: 0.40;
    cursor: not-allowed;
    box-shadow: none;
}

/* Secondary */
.btn-sec {
    background: var(--surface-1);
    color: var(--text-secondary);
    border-color: var(--border-subtle);
}

.btn-sec:hover:not(:disabled) {
    background: var(--surface-2);
    border-color: var(--border-medium);
    color: var(--text-main);
}

.btn-sec:disabled {
    opacity: 0.38;
    cursor: not-allowed;
}

/* Danger */
.btn-danger {
    background: oklch(98% 0.02 25);
    color: var(--color-error);
    border-color: oklch(88% 0.08 25);
}

.btn-danger:hover:not(:disabled) {
    background: oklch(95% 0.05 25);
    border-color: var(--color-error);
}

.btn-danger:disabled {
    opacity: 0.38;
    cursor: not-allowed;
}

[data-theme="dark"] .btn-danger,
[data-theme="void"] .btn-danger {
    background: oklch(20% 0.05 25);
    border-color: oklch(30% 0.08 25);
}

[data-theme="dark"] .btn-danger:hover:not(:disabled),
[data-theme="void"] .btn-danger:hover:not(:disabled) {
    background: oklch(24% 0.07 25);
    border-color: var(--color-error);
}

/* File label — styled as .btn-sec */
.file-lbl {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    border-radius: var(--radius-md);
    padding: 0.7rem 1.25rem;
    cursor: pointer;
    background: var(--surface-1);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast) ease;
    white-space: nowrap;
}

.file-lbl:hover {
    background: var(--surface-2);
    border-color: var(--border-medium);
    color: var(--text-main);
}

input[type="file"] { display: none; }

.a-spacer {
    flex: 1;
    min-width: 0;
}


/* =========================================
   PROGRESS SECTION
   ========================================= */
.progress-section {
    background: var(--surface-0);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
    display: none;
    animation: fadeIn 0.3s var(--ease-out);
}

.progress-section.visible {
    display: block;
}

.prog-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.85rem;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.prog-label {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-medium);
    border-top-color: var(--brand-primary);
    border-radius: 50%;
    animation: spin 0.65s linear infinite;
    flex-shrink: 0;
}

.prog-track {
    height: 6px;
    background: var(--surface-2);
    border-radius: var(--radius-pill);
    overflow: hidden;
    margin-bottom: 0.85rem;
}

.prog-fill {
    height: 100%;
    border-radius: var(--radius-pill);
    background: var(--brand-primary);
    transition: width 0.28s var(--ease-out);
    width: 0%;
}

.prog-fill.done  { background: var(--color-success); }
.prog-fill.mixed { background: linear-gradient(90deg, var(--color-success), var(--color-warning)); }

.prog-stats {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    font-family: var(--font-code);
    font-size: 0.78rem;
    color: var(--text-muted);
}

.ps {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.psdot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.psdot-ok   { background: var(--color-success); }
.psdot-err  { background: var(--color-error); }
.psdot-wait { background: var(--color-warning); animation: pulse 1s ease-in-out infinite; }

.prog-eta {
    margin-left: auto;
    font-family: var(--font-code);
    font-size: 0.75rem;
    color: var(--text-dim);
}

.retry-badge {
    font-size: 0.75rem;
    color: var(--color-warning);
    font-family: var(--font-code);
    padding: 0.25rem 0.65rem;
    background: oklch(98.5% 0.02 85);
    border-radius: var(--radius-xs);
    border: 1px solid oklch(90% 0.08 85);
    display: none;
    align-items: center;
    gap: 0.35rem;
}

.retry-badge.show { display: inline-flex; }

[data-theme="dark"] .retry-badge,
[data-theme="void"] .retry-badge {
    background: oklch(16% 0.05 85);
    border-color: oklch(26% 0.10 85);
}


/* =========================================
   TRANSLATE PANES
   ========================================= */
.translate-area {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.pane {
    display: flex;
    flex-direction: column;
    background: var(--surface-0);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: border-color var(--transition-fast) ease,
                box-shadow var(--transition-fast) ease;
}

.pane:focus-within {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
}

.pane-hdr {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem var(--space-4);
    background: var(--surface-1);
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.pane-title {
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--text-dim);
    letter-spacing: 0.10em;
    text-transform: uppercase;
}

.pane-meta {
    font-family: var(--font-code);
    font-size: var(--text-xs);
    color: var(--text-dim);
}

.pane-acts {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    flex-wrap: wrap;
    margin-left: auto;
}

/* Pane buttons — match .action-btn from style.css */
.pbtn {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    background: var(--surface-2);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xs);
    padding: 0.35rem 0.8rem;
    cursor: pointer;
    transition: all var(--transition-fast) ease;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
}

.pbtn:hover {
    background: var(--surface-3);
    color: var(--text-main);
    border-color: var(--border-medium);
}

.pbtn.danger:hover {
    background: oklch(96% 0.04 25);
    color: var(--color-error);
    border-color: var(--color-error);
}

[data-theme="dark"] .pbtn.danger:hover,
[data-theme="void"] .pbtn.danger:hover {
    background: oklch(20% 0.05 25);
}

.pbtn.ok {
    color: var(--color-success);
    border-color: var(--color-success);
}

/* Pane Textarea */
.pane-ta {
    flex: 1;
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: var(--leading-relaxed);
    background: var(--surface-0);
    border: none;
    color: var(--text-main);
    padding: var(--space-4);
    resize: none;
    outline: none;
    min-height: 400px;
    width: 100%;
    caret-color: var(--brand-primary);
    transition: background var(--transition-fast) ease;
}

.pane-ta::placeholder {
    color: var(--text-disabled);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: var(--leading-relaxed);
}

.pane-ta:focus {
    background: var(--surface-0);
}

.pane-ta[readonly] {
    cursor: default;
}

/* Pane scrollbar */
.pane-ta::-webkit-scrollbar { width: 5px; }
.pane-ta::-webkit-scrollbar-track { background: transparent; }
.pane-ta::-webkit-scrollbar-thumb {
    background: var(--surface-3);
    border-radius: 10px;
}
.pane-ta::-webkit-scrollbar-thumb:hover {
    background: var(--border-medium);
}

/* Fail notice */
.fail-notice {
    padding: 0.75rem var(--space-4);
    background: oklch(98% 0.02 25);
    border-top: 1px solid oklch(88% 0.08 25);
    font-size: var(--text-sm);
    color: var(--color-error);
    font-family: var(--font-body);
    font-weight: 500;
    display: none;
    line-height: var(--leading-relaxed);
}

.fail-notice.show { display: block; }

[data-theme="dark"] .fail-notice,
[data-theme="void"] .fail-notice {
    background: oklch(16% 0.05 25);
    border-color: oklch(26% 0.10 25);
}


/* =========================================
   STATUS BAR — matches system-alert aesthetic
   ========================================= */
.status-bar {
    background: var(--surface-0);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.65rem var(--space-3);
    font-family: var(--font-code);
    font-size: 0.78rem;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    min-height: 44px;
    box-shadow: var(--shadow-xs);
}

.sdot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--text-disabled);
    transition: background var(--transition-base) ease;
}

.sdot.ok   { background: var(--color-success); }
.sdot.err  { background: var(--color-error); }
.sdot.warn { background: var(--color-warning); }
.sdot.busy { background: var(--color-warning); animation: pulse 1s ease-in-out infinite; }

.smsg {
    flex: 1;
    color: var(--text-muted);
    font-weight: 600;
    font-family: var(--font-body);
    font-size: var(--text-xs);
}

.smsg.err  { color: var(--color-error); }
.smsg.warn { color: var(--color-warning); }
.smsg.ok   { color: var(--color-success); }

.sinfo {
    margin-left: auto;
    font-size: 0.72rem;
    color: var(--text-disabled);
    white-space: nowrap;
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}


/* =========================================
   RESPONSIVE — TABLET ≤ 900px
   ========================================= */
@media (max-width: 900px) {
    .app-main {
        max-width: 100%;
    }

    .translate-area {
        grid-template-columns: 1fr;
    }

    .pane-ta {
        min-height: 280px;
    }

    .settings-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .translate-floating-header {
        width: 95%;
    }
}


/* =========================================
   RESPONSIVE — MOBILE ≤ 600px
   ========================================= */
@media (max-width: 600px) {
    .app-main {
        padding: 5.75rem var(--space-3) var(--space-4);
        gap: var(--space-3);
    }

    .translate-floating-header {
        top: 0.85rem;
        width: calc(100% - 2rem);
    }

    .translate-header-title span {
        font-size: 0.72rem;
        letter-spacing: 0.04em;
    }

    .settings-grid {
        grid-template-columns: 1fr 1fr;
        padding: var(--space-3);
        gap: 0.75rem;
    }

    .action-row {
        gap: 0.5rem;
    }

    .btn,
    .file-lbl {
        padding: 0.65rem var(--space-3);
        font-size: 0.8rem;
    }

    .a-spacer { display: none; }

    .pane-hdr {
        padding: 0.65rem var(--space-3);
    }

    .pane-ta {
        padding: var(--space-3);
        font-size: var(--text-sm);
        min-height: 220px;
    }

    .sinfo { display: none; }

    .progress-section {
        padding: var(--space-3);
    }

    .prog-stats { gap: 0.75rem; }

    .key-warning-card {
        flex-wrap: wrap;
        gap: var(--space-3);
    }

    .kw-btn {
        width: 100%;
        justify-content: center;
    }

    .translate-header-right .icon-btn {
        width: 1.85rem;
        height: 1.85rem;
        font-size: var(--text-sm);
    }
}


/* =========================================
   RESPONSIVE — SMALL ≤ 420px
   ========================================= */
@media (max-width: 420px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }

    .btn,
    .file-lbl {
        padding: 0.6rem 0.9rem;
        font-size: 0.78rem;
    }

    .translate-header-right {
        display: none;
    }
}