/* ═══════════════════════════════════════════════════════════════════════════
   AnonShield — Design System & Styles
   Premium dark glassmorphism design with cyan-to-purple gradient accents
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Design Tokens ─── */
:root {
    --bg-primary: #060a14;
    --bg-secondary: #0d1321;
    --bg-tertiary: #141c2e;
    --bg-surface: rgba(255, 255, 255, 0.035);
    --bg-surface-hover: rgba(255, 255, 255, 0.065);
    --bg-surface-active: rgba(255, 255, 255, 0.09);

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-active: rgba(255, 255, 255, 0.18);
    --border-accent: rgba(34, 211, 238, 0.3);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #22d3ee;

    --cyan: #22d3ee;
    --purple: #a855f7;
    --blue: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #22d3ee, #a855f7);
    --accent-gradient-h: linear-gradient(90deg, #22d3ee, #6366f1, #a855f7);

    --success: #34d399;
    --success-bg: rgba(52, 211, 153, 0.1);
    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.1);
    --error: #f87171;
    --error-bg: rgba(248, 113, 113, 0.1);

    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.4);
    --shadow-glow-cyan: 0 0 20px rgba(34, 211, 238, 0.15);
    --shadow-glow-purple: 0 0 20px rgba(168, 85, 247, 0.15);

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    --sidebar-width: 320px;
}

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

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Animated background gradient */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(34, 211, 238, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 60% 80% at 80% 90%, rgba(168, 85, 247, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 50% 50% at 50% 50%, rgba(99, 102, 241, 0.03) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

h1, h2, h3, h4 { font-weight: 600; line-height: 1.3; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Glass Panel ─── */
.glass-panel {
    background: var(--bg-surface);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

/* ═══════════════════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════════════════ */
#app-header {
    position: relative;
    z-index: 10;
    padding: 20px 32px;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(6, 10, 20, 0.8);
    backdrop-filter: blur(16px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1600px;
    margin: 0 auto;
}

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

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.tagline strong {
    color: var(--text-accent);
    font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MAIN LAYOUT
   ═══════════════════════════════════════════════════════════════════════════ */
#app-main {
    position: relative;
    z-index: 5;
    display: flex;
    flex: 1;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    padding: 24px 32px;
    gap: 24px;
}

/* ─── Settings Sidebar ─── */
#settings-panel {
    position: sticky;
    top: 24px;
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    transition: var(--transition-normal);
    z-index: 20;
}

#settings-panel.collapsed {
    min-width: 48px;
    width: 48px;
}

#settings-panel.collapsed .settings-body,
#settings-panel.collapsed .panel-header h2 {
    display: none;
}

#settings-panel.collapsed #toggle-settings svg {
    transform: rotate(180deg);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
}

.panel-header h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    color: var(--text-primary);
}

.panel-header h2 svg {
    color: var(--text-secondary);
}

.settings-body {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.setting-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Select */
select {
    appearance: none;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    padding: 10px 32px 10px 12px;
    font-family: var(--font-family);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-fast);
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

select:hover { border-color: var(--border-active); }
select:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
}

/* Text Input & Textarea */
input[type="text"], textarea {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font-family: var(--font-family);
    font-size: 0.85rem;
    resize: vertical;
    transition: var(--transition-fast);
}

input[type="text"]:hover, textarea:hover { border-color: var(--border-active); }
input[type="text"]:focus, textarea:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
}

textarea::placeholder, input::placeholder {
    color: var(--text-muted);
}

/* Checkbox Grid */
.checkbox-grid {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 8px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.checkbox-label:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
    appearance: none;
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--border-default);
    border-radius: 4px;
    background: var(--bg-tertiary);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    flex-shrink: 0;
}

.checkbox-label input[type="checkbox"]:checked {
    background: var(--cyan);
    border-color: var(--cyan);
}

.checkbox-label input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    top: 2px; left: 5px;
    width: 4px; height: 8px;
    border: solid var(--bg-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.check-mark { display: none; }

/* ─── Content Area ─── */
#content-area {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   DROP ZONE
   ═══════════════════════════════════════════════════════════════════════════ */
#drop-zone {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-normal);
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#drop-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: var(--accent-gradient);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition-normal);
}

#drop-zone:hover::before,
#drop-zone.drag-over::before {
    opacity: 0.6;
}

#drop-zone.drag-over {
    transform: scale(1.01);
    border-color: var(--cyan);
    box-shadow: var(--shadow-glow-cyan);
}

.drop-zone-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 48px 32px;
    text-align: center;
}

.drop-icon-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.drop-icon-bg {
    position: absolute;
    width: 100px;
    height: 100px;
    background: var(--accent-gradient);
    border-radius: 50%;
    opacity: 0.08;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { transform: scale(1); opacity: 0.08; }
    50% { transform: scale(1.2); opacity: 0.15; }
}

.drop-icon {
    position: relative;
    z-index: 1;
    color: var(--cyan);
    opacity: 0.7;
    transition: var(--transition-normal);
}

#drop-zone:hover .drop-icon {
    opacity: 1;
    transform: translateY(-4px);
}

.drop-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.drop-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.link-btn {
    background: none;
    border: none;
    color: var(--cyan);
    font-family: var(--font-family);
    font-size: inherit;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.link-btn:hover {
    color: var(--purple);
}

.supported-formats {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 8px;
}

.format-badge {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-family);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--bg-primary);
    box-shadow: 0 2px 12px rgba(34, 211, 238, 0.2);
}
.btn-primary:hover {
    box-shadow: 0 4px 20px rgba(34, 211, 238, 0.35);
    transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    color: var(--text-secondary);
}
.btn-ghost:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
    border-color: var(--border-active);
}

.btn-danger-ghost { color: var(--error); }
.btn-danger-ghost:hover {
    background: var(--error-bg);
    border-color: rgba(248, 113, 113, 0.3);
    color: var(--error);
}

.btn-success {
    background: var(--success);
    color: var(--bg-primary);
}
.btn-success:hover {
    box-shadow: 0 4px 16px rgba(52, 211, 153, 0.3);
    transform: translateY(-1px);
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}
.icon-btn:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════════════════
   FILE QUEUE & CARDS
   ═══════════════════════════════════════════════════════════════════════════ */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.section-header h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.15rem;
    color: var(--text-primary);
}

.section-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.count-badge {
    font-size: 0.75rem;
    font-weight: 700;
    min-width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 8px;
    border-radius: var(--radius-full);
    background: var(--accent-gradient);
    color: var(--bg-primary);
}

#file-list, #results-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* File Card */
.file-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.file-card:hover {
    border-color: var(--border-default);
    background: var(--bg-surface-hover);
}

.file-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    flex-shrink: 0;
}

.file-card-icon.pdf { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
.file-card-icon.docx { background: rgba(59, 130, 246, 0.15); color: #3b82f6; }
.file-card-icon.xlsx { background: rgba(34, 197, 94, 0.15); color: #22c55e; }
.file-card-icon.txt { background: rgba(148, 163, 184, 0.15); color: #94a3b8; }
.file-card-icon.csv { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }

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

.file-card-name {
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.file-card-pii {
    display: flex;
    align-items: center;
    gap: 6px;
}

.pii-count {
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
}

.pii-count.has-pii {
    background: var(--warning-bg);
    color: var(--warning);
}

.pii-count.no-pii {
    background: var(--success-bg);
    color: var(--success);
}

.pii-count.scanning {
    background: var(--bg-surface-hover);
    color: var(--text-muted);
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.file-card-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.file-card-remove {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    border-radius: var(--radius-xs);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}
.file-card-remove:hover {
    background: var(--error-bg);
    color: var(--error);
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESULTS CARDS
   ═══════════════════════════════════════════════════════════════════════════ */
.result-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    animation: slideIn 0.3s ease-out;
}

.result-card.success {
    border-color: rgba(52, 211, 153, 0.15);
}

.result-card.error {
    border-color: rgba(248, 113, 113, 0.15);
}

.result-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.2rem;
}

.result-icon.success {
    background: var(--success-bg);
    color: var(--success);
}

.result-icon.error {
    background: var(--error-bg);
    color: var(--error);
}

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

.result-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.result-detail {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.result-actions {
    flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════════════════════
   PROCESSING OVERLAY
   ═══════════════════════════════════════════════════════════════════════════ */
#processing-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.overlay-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(6, 10, 20, 0.85);
    backdrop-filter: blur(8px);
}

.processing-modal {
    position: relative;
    z-index: 1;
    width: 420px;
    max-width: 90vw;
    padding: 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.processing-icon {
    margin-bottom: 8px;
}

/* Spinner */
.spinner {
    position: relative;
    width: 56px;
    height: 56px;
}

.spinner-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid transparent;
}

.spinner-ring:nth-child(1) {
    border-top-color: var(--cyan);
    animation: spin 1.2s linear infinite;
}

.spinner-ring:nth-child(2) {
    inset: 6px;
    border-right-color: var(--purple);
    animation: spin 1.6s linear infinite reverse;
}

.spinner-ring:nth-child(3) {
    inset: 12px;
    border-bottom-color: var(--blue);
    animation: spin 2s linear infinite;
}

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

#processing-title {
    font-size: 1.2rem;
    font-weight: 700;
}

#processing-status {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.progress-track {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-gradient-h);
    border-radius: var(--radius-full);
    transition: width 0.4s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.processing-detail {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════════════════
   SCAN MODAL
   ═══════════════════════════════════════════════════════════════════════════ */
#scan-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scan-modal-content {
    position: relative;
    z-index: 1;
    width: 560px;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
    font-size: 1.1rem;
}

.modal-body {
    padding: 20px 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-subtle);
}

.scan-category {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9rem;
}

.scan-category:last-child { border: none; }

.scan-category-name {
    color: var(--text-secondary);
}

.scan-category-count {
    font-weight: 700;
    color: var(--warning);
}

.scan-category-count.zero {
    color: var(--text-muted);
    font-weight: 400;
}

/* ═══════════════════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */
#app-footer {
    position: relative;
    z-index: 10;
    padding: 16px 32px;
    border-top: 1px solid var(--border-subtle);
    background: rgba(6, 10, 20, 0.6);
}

.footer-content {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
}

.security-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
}

.security-badge svg {
    color: var(--success);
    flex-shrink: 0;
}

.security-badge strong {
    color: var(--success);
}

/* ═══════════════════════════════════════════════════════════════════════════
   GITHUB STAR MODAL
   ═══════════════════════════════════════════════════════════════════════════ */
#github-star-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
}

#github-star-modal .overlay-backdrop {
    cursor: default;
}

.star-modal-content {
    position: relative;
    z-index: 1;
    width: 440px;
    max-width: 92vw;
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(251, 191, 36, 0.2);
    box-shadow:
        0 0 0 1px rgba(251, 191, 36, 0.08),
        0 24px 64px rgba(0, 0, 0, 0.6),
        0 0 40px rgba(251, 191, 36, 0.06);
    animation: starModalIn 0.45s var(--transition-bounce) both;
}

@keyframes starModalIn {
    from { opacity: 0; transform: scale(0.85) translateY(24px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.star-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 2;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-subtle);
}
.star-modal-close:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text-primary);
}

.star-modal-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 44px 36px 32px;
    text-align: center;
}

/* Icon area */
.star-modal-icon-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
}

.star-pulse-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(251,191,36,0.18) 0%, transparent 70%);
    animation: starPulse 2.4s ease-in-out infinite;
}

@keyframes starPulse {
    0%, 100% { transform: scale(1);   opacity: 0.7; }
    50%       { transform: scale(1.3); opacity: 1;   }
}

.star-emoji {
    font-size: 3.2rem;
    line-height: 1;
    animation: starWiggle 3s ease-in-out infinite;
    filter: drop-shadow(0 0 12px rgba(251,191,36,0.5));
}

@keyframes starWiggle {
    0%, 80%, 100% { transform: rotate(0deg) scale(1); }
    85%           { transform: rotate(-12deg) scale(1.1); }
    92%           { transform: rotate(10deg) scale(1.05); }
}

/* Text */
#star-modal-title {
    font-size: 1.35rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fbbf24, #f59e0b, #fcd34d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.star-modal-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 320px;
}

/* Action buttons */
.star-modal-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    margin-top: 4px;
}

/* GitHub Star button */
.btn-star {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #1a0f00;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 13px 24px;
    border-radius: var(--radius-md);
    justify-content: center;
    box-shadow: 0 4px 20px rgba(251,191,36,0.3);
    transition: var(--transition-normal);
    text-decoration: none !important;
    border: none;
}
.btn-star:hover {
    background: linear-gradient(135deg, #fcd34d, #fbbf24);
    box-shadow: 0 6px 28px rgba(251,191,36,0.5);
    transform: translateY(-2px);
    text-decoration: none !important;
}
.btn-star:active { transform: translateY(0); }

#star-modal-skip {
    width: 100%;
    justify-content: center;
    font-size: 0.85rem;
    padding: 10px;
}

.star-modal-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   UTILITIES
   ═══════════════════════════════════════════════════════════════════════════ */
.hidden { display: none !important; }

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--border-default);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--border-active); }

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    #settings-panel {
        position: fixed;
        left: 0; top: 0;
        height: 100vh;
        border-radius: 0;
        z-index: 100;
        transform: translateX(0);
        transition: var(--transition-normal);
    }
    #settings-panel.collapsed {
        transform: translateX(-100%);
        width: var(--sidebar-width);
        min-width: var(--sidebar-width);
    }
    #settings-panel.collapsed .settings-body,
    #settings-panel.collapsed .panel-header h2 {
        display: flex;
    }
    #app-main { padding: 16px; }
}

@media (max-width: 640px) {
    #app-header { padding: 14px 16px; }
    .header-content { flex-direction: column; gap: 4px; }
    .tagline { font-size: 0.8rem; }
    #app-main { padding: 12px; }
    .section-header { flex-direction: column; align-items: stretch; }
    .section-actions { justify-content: flex-end; }
    .file-card { flex-wrap: wrap; }
    .result-card { flex-wrap: wrap; }
    .drop-zone-inner { padding: 32px 16px; }
    .processing-modal { padding: 28px 20px; }
}