/* =====================================================
   Auto-Word — Premium Light/Dark Theme
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@300;400;500;600;700&display=swap');

/* ── Theme Variables ─────────────────────────────── */
:root[data-theme="dark"] {
    --bg-base: #0f172a;
    --bg-panel: rgba(30, 41, 59, 0.7);
    --bg-surface: rgba(255, 255, 255, 0.04);
    --bg-surface-hover: rgba(255, 255, 255, 0.08);
    
    --border-soft: rgba(255, 255, 255, 0.08);
    --border-focus: rgba(99, 102, 241, 0.5);
    
    --text-strong: #f8fafc;
    --text-main: #cbd5e1;
    --text-muted: #64748b;
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.35);
    
    --success: #10b981;
    --danger: #ef4444;
    
    --glass-blur: blur(16px);
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    --scroll-track: transparent;
    --scroll-thumb: rgba(255, 255, 255, 0.1);
    --scroll-thumb-hover: rgba(255, 255, 255, 0.2);
}

:root[data-theme="light"] {
    --bg-base: #f8fafc;
    --bg-panel: rgba(255, 255, 255, 0.85);
    --bg-surface: rgba(15, 23, 42, 0.03);
    --bg-surface-hover: rgba(15, 23, 42, 0.06);
    
    --border-soft: rgba(15, 23, 42, 0.1);
    --border-focus: rgba(99, 102, 241, 0.5);
    
    --text-strong: #0f172a;
    --text-main: #334155;
    --text-muted: #64748b;
    
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-glow: rgba(79, 70, 229, 0.25);
    
    --success: #059669;
    --danger: #dc2626;
    
    --glass-blur: blur(20px);
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.08);
    
    --scroll-track: transparent;
    --scroll-thumb: rgba(15, 23, 42, 0.15);
    --scroll-thumb-hover: rgba(15, 23, 42, 0.25);
}

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

body {
    height: 100vh;
    overflow: hidden;
    font-family: 'Inter', sans-serif;
    background: var(--bg-base);
    color: var(--text-main);
    transition: background 0.4s ease, color 0.4s ease;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--scroll-track); }
::-webkit-scrollbar-thumb {
    background: var(--scroll-thumb);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover { background: var(--scroll-thumb-hover); }

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

/* ── Topbar ──────────────────────────────────────── */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 24px;
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-soft);
    z-index: 100;
}

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

.brand-logo {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    color: #fff;
    border-radius: 10px;
    font-size: 16px;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.brand-text h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-strong);
    line-height: 1.1;
}

.brand-text span {
    font-size: 11px;
    color: var(--text-muted);
}

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border-soft);
    background: var(--bg-surface);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

/* ── Workspace ───────────────────────────────────── */
.main-workspace {
    display: flex;
    flex: 1;
    overflow: hidden;
    justify-content: center;
}

/* ── Control Panel (Centered) ─────────────────────── */
.control-panel {
    width: 600px;
    max-width: 100%;
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--border-soft);
    border-left: 1px solid var(--border-soft);
    display: flex;
    flex-direction: column;
}

.panel-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.control-section {
    margin-bottom: 32px;
}

.section-title {
    font-family: 'Outfit', sans-serif;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-strong);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title::before {
    content: '';
    display: block;
    width: 4px;
    height: 14px;
    background: var(--primary);
    border-radius: 2px;
}

/* ── Upload Zone ─────────────────────────────────── */
.upload-zone {
    border: 2px dashed var(--border-soft);
    border-radius: 16px;
    padding: 32px 20px;
    text-align: center;
    background: var(--bg-surface);
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.upload-icon-wrapper {
    width: 56px;
    height: 56px;
    background: var(--bg-surface-hover);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    margin: 0 auto 12px;
    transition: transform 0.3s ease;
}

.upload-zone:hover .upload-icon-wrapper {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--primary-glow);
}

.upload-zone h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-strong);
    margin-bottom: 4px;
}

.upload-zone p {
    font-size: 12px;
    color: var(--text-muted);
}

.file-details {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    animation: slideUp 0.3s ease;
}

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

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

.file-icon-box {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 20px;
    flex-shrink: 0;
}

.file-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.file-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-strong);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 11px;
    color: var(--text-muted);
}

.remove-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

/* ── Presets ─────────────────────────────────────── */
.preset-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.preset-btn {
    padding: 14px 10px;
    border: 1px solid var(--border-soft);
    background: var(--bg-surface);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.preset-btn i {
    font-size: 18px;
    color: var(--text-muted);
    transition: color 0.2s;
}

.preset-btn:hover {
    background: var(--bg-surface-hover);
}

.preset-btn.active {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

.preset-btn.active i {
    color: var(--primary);
}

/* ── Tabs ────────────────────────────────────────── */
.tabs {
    display: flex;
    background: var(--bg-surface);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    padding: 10px 0;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

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

.tab-btn.active {
    background: var(--bg-panel);
    color: var(--text-strong);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.tab-content {
    display: none;
    flex-direction: column;
    gap: 16px;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: flex;
}

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

/* ── Form Controls ───────────────────────────────── */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.row-group {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
}

.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.val-badge {
    font-size: 11px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

.custom-input, .custom-select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-soft);
    background: var(--bg-surface);
    color: var(--text-strong);
    border-radius: 10px;
    font-size: 13px;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: all 0.2s ease;
}

.custom-input:focus, .custom-select:focus {
    border-color: var(--primary);
    background: var(--bg-surface-hover);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.custom-input.small {
    width: 70px;
    padding: 6px 10px;
    text-align: center;
}

.custom-select-wrapper {
    position: relative;
}

.custom-select-wrapper::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: var(--text-muted);
    pointer-events: none;
}
.custom-select {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 32px;
}
.custom-select option {
    background: var(--bg-base);
    color: var(--text-strong);
}

/* Range */
.custom-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 4px;
    background: var(--border-soft);
    outline: none;
}
.custom-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 10px var(--primary-glow);
    transition: transform 0.1s;
}
.custom-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}
.toggle-switch.push-bottom {
    margin-bottom: 8px;
}
.toggle-switch input { display: none; }
.toggle-slider {
    position: relative;
    width: 36px;
    height: 20px;
    background: var(--bg-surface-hover);
    border: 1px solid var(--border-soft);
    border-radius: 20px;
    transition: 0.3s;
    flex-shrink: 0;
}
.toggle-slider::before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: 0.3s;
}
.toggle-switch input:checked + .toggle-slider {
    background: var(--primary);
    border-color: var(--primary);
}
.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(16px);
    background: #fff;
}
.toggle-label {
    font-size: 12px;
    color: var(--text-main);
    user-select: none;
}

/* Small toggle for headings */
.small-switch .toggle-slider {
    width: 28px;
    height: 16px;
}
.small-switch .toggle-slider::before {
    height: 10px;
    width: 10px;
    left: 2px;
    bottom: 2px;
}
.small-switch input:checked + .toggle-slider::before {
    transform: translateX(12px);
}

/* ── Headings Card ───────────────────────────────── */
.heading-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    overflow: hidden;
}
.hc-header {
    background: rgba(0,0,0,0.1);
    padding: 8px 14px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-soft);
}
:root[data-theme="light"] .hc-header {
    background: rgba(0,0,0,0.02);
}
.hc-body {
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.hc-toggles {
    display: flex;
    gap: 16px;
}

/* ── Info Note ───────────────────────────────────── */
.info-note {
    display: flex;
    gap: 8px;
    padding: 12px;
    background: rgba(99, 102, 241, 0.08);
    border-radius: 8px;
    margin-top: 16px;
    font-size: 11px;
    color: var(--text-main);
    line-height: 1.5;
}
.info-note i {
    color: var(--primary);
    margin-top: 2px;
}

/* ── Action Panel ────────────────────────────────── */
.panel-action {
    padding: 20px 24px;
    border-top: 1px solid var(--border-soft);
    background: var(--bg-panel);
}

.primary-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    box-shadow: 0 4px 16px var(--primary-glow);
    transition: all 0.2s ease;
}

.primary-btn:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.primary-btn:active:not(:disabled) {
    transform: translateY(0);
}

.primary-btn:disabled {
    background: var(--bg-surface-hover);
    color: var(--text-muted);
    box-shadow: none;
    cursor: not-allowed;
}

/* ── Preview Area ────────────────────────────────── */
.preview-area {
    flex: 1;
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Decorative background shapes */
.preview-area::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 20%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 60%);
    filter: blur(60px);
    z-index: 0;
    pointer-events: none;
}

.preview-glass {
    position: relative;
    z-index: 1;
    flex: 1;
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-soft);
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.preview-toolbar {
    height: 50px;
    border-bottom: 1px solid var(--border-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    background: rgba(0,0,0,0.1);
}
:root[data-theme="light"] .preview-toolbar {
    background: rgba(0,0,0,0.02);
}

.pt-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-strong);
}

.badge {
    font-size: 10px;
    font-weight: 600;
    padding: 4px 8px;
    background: var(--bg-surface);
    border-radius: 12px;
    border: 1px solid var(--border-soft);
    color: var(--text-muted);
}

.preview-stage {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow: auto;
}



/* ── Loading Overlay ─────────────────────────────── */
.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.glass-loader {
    width: 320px;
    padding: 32px;
    border-radius: 24px;
    background: var(--bg-panel);
    border: 1px solid var(--border-soft);
    text-align: center;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.loader-spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--border-soft);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loader-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-strong);
}

.loader-step {
    font-size: 12px;
    color: var(--text-muted);
}

.progress-bar {
    width: 100%;
    height: 4px;
    border-radius: 4px;
    background: var(--bg-surface);
    overflow: hidden;
}

.progress-bar-inner {
    height: 100%;
    border-radius: 4px;
    background: var(--primary);
    transition: width 0.4s ease;
}

/* ── Toast Notification ──────────────────────────── */
.toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 3000;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border-radius: 16px;
    background: var(--bg-panel);
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-soft);
    backdrop-filter: var(--glass-blur);
    animation: slideInRight 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    max-width: 350px;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

.toast-icon-wrapper {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.toast.success .toast-icon-wrapper { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.toast.error .toast-icon-wrapper { background: rgba(239, 68, 68, 0.15); color: var(--danger); }

.toast-body { display: flex; flex-direction: column; gap: 4px; }
.toast-title { font-size: 13px; font-weight: 600; color: var(--text-strong); }
.toast-msg { font-size: 12px; color: var(--text-muted); line-height: 1.4; }