/* ============================================================
   Keyword Clustering Tool — Dark Theme
   Vercel / Linear / Raycast inspired
   ============================================================ */

/* ── CSS Custom Properties (Token System) ────────────────── */
:root,
[data-bs-theme="dark"] {
    /* Background layers (stone scale, warm blacks) */
    --kc-bg-base:        #0c0a09;
    --kc-bg-raised:      #1c1917;
    --kc-bg-surface:     #292524;
    --kc-bg-overlay:     #44403c;

    /* Borders */
    --kc-border:         #292524;
    --kc-border-subtle:  #1c1917;
    --kc-border-accent:  rgba(16, 185, 129, 0.3);

    /* Accent: Electric Emerald */
    --kc-accent:         #10b981;
    --kc-accent-hover:   #34d399;
    --kc-accent-dim:     rgba(16, 185, 129, 0.15);
    --kc-accent-glow:    0 0 20px rgba(16, 185, 129, 0.25);

    /* Text hierarchy (warm-tinted whites) */
    --kc-text-primary:   #fafaf9;
    --kc-text-secondary: #a8a29e;
    --kc-text-tertiary:  #78716c;
    --kc-text-muted:     #57534e;

    /* Metric colors (color-coded) */
    --kc-metric-volume:      #22c55e;
    --kc-metric-volume-dim:  rgba(34, 197, 94, 0.15);
    --kc-metric-cpc:         #f59e0b;
    --kc-metric-cpc-dim:     rgba(245, 158, 11, 0.15);
    --kc-metric-comp:        #3b82f6;
    --kc-metric-comp-dim:    rgba(59, 130, 246, 0.15);
    --kc-metric-keywords:    #10b981;
    --kc-metric-keywords-dim: rgba(16, 185, 129, 0.15);

    /* Status colors */
    --kc-status-success:     #22c55e;
    --kc-status-success-dim: rgba(34, 197, 94, 0.15);
    --kc-status-warning:     #f59e0b;
    --kc-status-warning-dim: rgba(245, 158, 11, 0.15);
    --kc-status-danger:      #ef4444;
    --kc-status-danger-dim:  rgba(239, 68, 68, 0.15);
    --kc-status-info:        #3b82f6;
    --kc-status-info-dim:    rgba(59, 130, 246, 0.15);

    /* Typography */
    --kc-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --kc-font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;

    /* Transitions */
    --kc-transition:     0.2s ease;
    --kc-transition-slow: 0.4s ease;

    /* Radii */
    --kc-radius-sm:  6px;
    --kc-radius:     10px;
    --kc-radius-lg:  16px;
    --kc-radius-xl:  24px;

    /* Bootstrap overrides */
    --bs-body-bg:      var(--kc-bg-base);
    --bs-body-color:   var(--kc-text-primary);
    --bs-primary:      #10b981;
    --bs-primary-rgb:  16, 185, 129;
    --bs-border-color: var(--kc-border);
    --bs-link-color:   var(--kc-accent);
    --bs-link-hover-color: var(--kc-accent-hover);
}

/* ── Base ─────────────────────────────────────────────────── */
body {
    font-family: var(--kc-font);
    background: var(--kc-bg-base);
    color: var(--kc-text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    flex: 1;
}

a {
    color: var(--kc-accent);
    transition: color var(--kc-transition);
}
a:hover {
    color: var(--kc-accent-hover);
}

::selection {
    background: rgba(16, 185, 129, 0.3);
    color: #fff;
}

/* Scrollbar (webkit) */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--kc-bg-base);
}
::-webkit-scrollbar-thumb {
    background: var(--kc-bg-overlay);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--kc-text-muted);
}

/* ── Bootstrap Overrides: Buttons ─────────────────────────── */
.btn-primary {
    background-color: var(--kc-accent);
    border-color: var(--kc-accent);
    color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--kc-accent-hover);
    border-color: var(--kc-accent-hover);
    box-shadow: var(--kc-accent-glow);
    color: #fff;
}
.btn-primary:active {
    background-color: var(--kc-accent) !important;
    border-color: var(--kc-accent) !important;
}

.btn-outline-primary {
    color: var(--kc-accent);
    border-color: var(--kc-border);
}
.btn-outline-primary:hover, .btn-outline-primary:focus {
    background: var(--kc-accent-dim);
    border-color: var(--kc-accent);
    color: var(--kc-accent-hover);
}
.btn-outline-primary.active {
    background: var(--kc-accent);
    border-color: var(--kc-accent);
    color: #fff;
}

.btn-outline-secondary {
    color: var(--kc-text-secondary);
    border-color: var(--kc-border);
}
.btn-outline-secondary:hover {
    background: var(--kc-bg-surface);
    border-color: var(--kc-text-tertiary);
    color: var(--kc-text-primary);
}

.text-primary {
    color: var(--kc-accent) !important;
}

/* ── Bootstrap Overrides: Cards ───────────────────────────── */
.card {
    background: var(--kc-bg-raised);
    border: 1px solid var(--kc-border);
    border-radius: var(--kc-radius);
    box-shadow: none;
    transition: border-color var(--kc-transition), box-shadow var(--kc-transition);
}
.card:hover {
    border-color: var(--kc-border-accent);
    box-shadow: var(--kc-accent-glow);
}
.card-header {
    background: var(--kc-bg-raised);
    border-bottom: 1px solid var(--kc-border);
    border-radius: var(--kc-radius) var(--kc-radius) 0 0 !important;
}

/* ── Bootstrap Overrides: Forms ───────────────────────────── */
.form-control, .form-select {
    background: var(--kc-bg-base);
    border-color: var(--kc-border);
    color: var(--kc-text-primary);
}
.form-control:focus, .form-select:focus {
    background: var(--kc-bg-base);
    border-color: var(--kc-accent);
    color: var(--kc-text-primary);
    box-shadow: 0 0 0 3px var(--kc-accent-dim);
}
.form-control::placeholder {
    color: var(--kc-text-muted);
}
.form-text {
    color: var(--kc-text-tertiary);
}
.form-label {
    color: var(--kc-text-secondary);
}

/* ── Bootstrap Overrides: Tables ──────────────────────────── */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--kc-text-primary);
    --bs-table-border-color: var(--kc-border-subtle);
    --bs-table-hover-bg: var(--kc-bg-surface);
    --bs-table-striped-bg: rgba(255, 255, 255, 0.02);
}
.table thead th {
    color: var(--kc-text-tertiary);
    font-weight: 500;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom-color: var(--kc-border);
}

/* ── Bootstrap Overrides: Modal ───────────────────────────── */
.modal-content {
    background: var(--kc-bg-raised);
    border: 1px solid var(--kc-border);
}
.modal-header {
    border-bottom-color: var(--kc-border);
}
.modal-footer {
    border-top-color: var(--kc-border);
}
.btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* ── Bootstrap Overrides: Accordion ───────────────────────── */
.accordion-item {
    background: var(--kc-bg-raised);
    border-color: var(--kc-border);
}
.accordion-button {
    background: var(--kc-bg-raised);
    color: var(--kc-text-primary);
    font-weight: 500;
}
.accordion-button:not(.collapsed) {
    background: var(--kc-bg-surface);
    color: var(--kc-accent);
    box-shadow: none;
}
.accordion-button::after {
    filter: invert(1) brightness(200%);
}
.accordion-button:not(.collapsed)::after {
    filter: invert(0.5) sepia(1) hue-rotate(130deg) brightness(1.2);
}
.accordion-body {
    color: var(--kc-text-secondary);
    background: var(--kc-bg-raised);
}

/* ── Bootstrap Overrides: Dropdown ────────────────────────── */
.dropdown-menu {
    background: var(--kc-bg-raised);
    border-color: var(--kc-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.dropdown-item {
    color: var(--kc-text-secondary);
}
.dropdown-item:hover, .dropdown-item:focus {
    background: var(--kc-bg-surface);
    color: var(--kc-text-primary);
}
.dropdown-item-text {
    color: var(--kc-text-tertiary) !important;
}
.dropdown-divider {
    border-color: var(--kc-border);
}

/* ── Bootstrap Overrides: Pagination ──────────────────────── */
.page-link {
    background: var(--kc-bg-raised);
    border-color: var(--kc-border);
    color: var(--kc-text-secondary);
}
.page-link:hover {
    background: var(--kc-bg-surface);
    border-color: var(--kc-border);
    color: var(--kc-accent);
}
.page-item.active .page-link {
    background-color: var(--kc-accent);
    border-color: var(--kc-accent);
    color: #fff;
}
.page-item.disabled .page-link {
    background: var(--kc-bg-base);
    border-color: var(--kc-border);
    color: var(--kc-text-muted);
}

/* ── Bootstrap Overrides: Badges ──────────────────────────── */
.badge.bg-primary {
    background-color: var(--kc-accent) !important;
}

/* ── Bootstrap Overrides: Progress ────────────────────────── */
.progress {
    background: var(--kc-bg-surface);
    border-radius: 4px;
}
.progress-bar {
    background-color: var(--kc-accent);
}

/* ── Bootstrap Overrides: Alerts ──────────────────────────── */
.alert-info {
    background: var(--kc-status-info-dim);
    border-color: rgba(59, 130, 246, 0.2);
    color: var(--kc-status-info);
}
.alert-success {
    background: var(--kc-status-success-dim);
    border-color: rgba(34, 197, 94, 0.2);
    color: var(--kc-status-success);
}
.alert-danger {
    background: var(--kc-status-danger-dim);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--kc-status-danger);
}
.alert-warning {
    background: var(--kc-status-warning-dim);
    border-color: rgba(245, 158, 11, 0.2);
    color: var(--kc-status-warning);
}

/* ── Bootstrap Overrides: Nav Tabs ────────────────────────── */
.nav-tabs {
    border-bottom-color: var(--kc-border);
}
.nav-tabs .nav-link {
    color: var(--kc-text-tertiary);
    border: 1px solid transparent;
    border-radius: var(--kc-radius-sm) var(--kc-radius-sm) 0 0;
}
.nav-tabs .nav-link:hover {
    border-color: var(--kc-border);
    color: var(--kc-text-primary);
}
.nav-tabs .nav-link.active {
    background: var(--kc-bg-raised);
    color: var(--kc-accent);
    border-color: var(--kc-border) var(--kc-border) var(--kc-bg-raised);
    font-weight: 500;
}

/* ── Bootstrap Overrides: Misc ────────────────────────────── */
.text-muted {
    color: var(--kc-text-tertiary) !important;
}
.border-bottom, .border-top {
    border-color: var(--kc-border) !important;
}
hr {
    border-color: var(--kc-border);
}
code {
    color: var(--kc-accent);
    background: var(--kc-accent-dim);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
}

/* ── Navbar ───────────────────────────────────────────────── */
.navbar {
    background: var(--kc-bg-raised) !important;
    border-bottom: 1px solid var(--kc-border) !important;
    box-shadow: none;
}
.navbar-brand {
    font-size: 1.15rem;
    letter-spacing: -0.01em;
    color: var(--kc-text-primary) !important;
}
.navbar-brand i {
    color: var(--kc-accent);
}
.navbar .nav-link {
    color: var(--kc-text-secondary);
}
.navbar .nav-link:hover {
    color: var(--kc-text-primary);
}
.navbar-toggler {
    border-color: var(--kc-border);
}
.navbar-toggler-icon {
    filter: invert(1);
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
    background: var(--kc-bg-raised) !important;
    border-top: 1px solid var(--kc-border) !important;
}

/* ── Hero Section (Landing Page) ──────────────────────────── */
.hero {
    background: var(--kc-bg-base);
    padding: 6rem 0 5rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(45, 212, 191, 0.05) 0%, transparent 50%);
    animation: meshMove 20s ease-in-out infinite alternate;
    pointer-events: none;
}
@keyframes meshMove {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(-5%, 3%); }
}
.hero h1 {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.15;
    position: relative;
}
.hero .lead {
    font-size: 1.15rem;
    color: var(--kc-text-secondary);
    position: relative;
}

/* Text glow effect — emerald gradient text with drop shadow */
.text-glow {
    background: linear-gradient(135deg, var(--kc-accent), #2dd4bf);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 20px rgba(16, 185, 129, 0.3));
}

/* Hero demo card — dark themed */
.hero .card {
    background: var(--kc-bg-raised);
    border: 1px solid var(--kc-border);
}
.hero .card:hover {
    border-color: var(--kc-border);
    box-shadow: none;
}

/* Feature icons */
.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--kc-radius);
    background: var(--kc-accent-dim);
    color: var(--kc-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.15);
}

/* Keyword count badges (hero demo) */
.keyword-count-badge {
    background: var(--kc-accent-dim);
    color: var(--kc-accent);
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* How-it-works step circles */
.step-circle {
    background: var(--kc-accent-dim) !important;
}
.step-circle span {
    color: var(--kc-accent) !important;
}

/* "How It Works" section — dark background override */
.section-raised {
    background: var(--kc-bg-raised);
}

/* ── Dashboard Stats ──────────────────────────────────────── */
.stat-card {
    text-align: center;
    padding: 1.5rem;
}
.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--kc-accent);
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}
.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--kc-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

/* ── Job Status Badges ────────────────────────────────────── */
.job-status-badge {
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 500;
}
.job-status-badge.completed {
    background: var(--kc-status-success-dim);
    color: var(--kc-status-success);
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.15);
}
.job-status-badge.processing {
    background: var(--kc-status-warning-dim);
    color: var(--kc-status-warning);
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.15);
    animation: pulseGlow 2s ease-in-out infinite;
}
.job-status-badge.failed {
    background: var(--kc-status-danger-dim);
    color: var(--kc-status-danger);
}
.job-status-badge.pending {
    background: rgba(113, 113, 122, 0.15);
    color: var(--kc-text-tertiary);
}
@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 8px rgba(245, 158, 11, 0.15); }
    50%      { box-shadow: 0 0 16px rgba(245, 158, 11, 0.35); }
}

/* ── Step Wizard (New Job) ────────────────────────────────── */
.step-wizard {
    counter-reset: step;
}
.step-indicator {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    margin-bottom: 2rem;
}
.step-indicator .step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}
.step-indicator .step-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--kc-bg-surface);
    color: var(--kc-text-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 1;
    border: 2px solid var(--kc-border);
    transition: all var(--kc-transition);
}
.step-indicator .step.active .step-num {
    background: var(--kc-accent);
    color: #fff;
    border-color: var(--kc-accent);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}
.step-indicator .step.completed .step-num {
    background: var(--kc-status-success);
    color: #fff;
    border-color: var(--kc-status-success);
    box-shadow: 0 0 10px rgba(34, 197, 94, 0.3);
}
.step-indicator .step-line {
    width: 60px;
    height: 3px;
    margin-top: 17px;
    background: var(--kc-border);
    transition: background var(--kc-transition);
}
.step-indicator .step.completed + .step .step-line,
.step-indicator .step.active + .step .step-line {
    background: var(--kc-accent);
}
.step-label {
    font-size: 0.78rem;
    text-align: center;
    margin-top: 4px;
    color: var(--kc-text-muted);
}
.step.active .step-label {
    color: var(--kc-accent);
    font-weight: 600;
}
.step-content {
    display: none;
}
.step-content.active {
    display: block;
}

/* Input tabs */
.input-method-tabs {
    gap: 0.5rem;
    border-bottom: 2px solid var(--kc-accent);
    padding-bottom: 0;
}
.input-method-tabs .nav-link {
    color: var(--kc-text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.6rem 1.1rem 0.75rem;
    border: none;
    border-radius: 0;
    background: transparent;
    transition: color var(--kc-transition), box-shadow var(--kc-transition);
}
.input-method-tabs .nav-link:hover {
    color: var(--kc-text-primary);
}
.input-method-tabs .nav-link.active {
    color: var(--kc-accent);
    font-weight: 600;
    background: var(--kc-accent-dim);
    border-radius: var(--kc-radius-sm) var(--kc-radius-sm) 0 0;
}

/* Upload zone */
.upload-zone {
    background: var(--kc-bg-base);
    border: 2px dashed var(--kc-border);
    border-radius: var(--kc-radius);
    transition: border-color var(--kc-transition);
}
.upload-zone:hover {
    border-color: var(--kc-accent);
}

/* Summary box */
.summary-box {
    background: var(--kc-bg-base);
    border: 1px solid var(--kc-border);
    border-radius: var(--kc-radius);
}
.summary-value {
    color: var(--kc-accent);
    font-weight: 700;
    font-size: 1.25rem;
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

/* ── Processing Animation (Bubbles) ───────────────────────── */
.bubble-container {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: var(--kc-radius-lg);
    background: var(--kc-bg-base);
    border: 1px solid var(--kc-border);
}
.bubble {
    position: absolute;
    padding: 6px 14px;
    background: var(--kc-bg-surface);
    border: 1px solid var(--kc-border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--kc-text-secondary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
    animation: floatUp 4s ease-in-out infinite;
    opacity: 0;
}
.bubble.clustered {
    color: #fff;
    transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}
.bubble.clustered-emerald {
    background: #a7f3d0;
    border-color: #a7f3d0;
    color: #065f46;
    box-shadow: 0 0 15px rgba(167, 243, 208, 0.4);
}
.bubble.clustered-blue {
    background: #bfdbfe;
    border-color: #bfdbfe;
    color: #1e3a5f;
    box-shadow: 0 0 15px rgba(191, 219, 254, 0.4);
}
.bubble.clustered-purple {
    background: #ddd6fe;
    border-color: #ddd6fe;
    color: #4c1d95;
    box-shadow: 0 0 15px rgba(221, 214, 254, 0.4);
}
.bubble.clustered-amber {
    background: #fde68a;
    border-color: #fde68a;
    color: #78350f;
    box-shadow: 0 0 15px rgba(253, 230, 138, 0.4);
}
.bubble.clustered-rose {
    background: #fecdd3;
    border-color: #fecdd3;
    color: #881337;
    box-shadow: 0 0 15px rgba(254, 205, 211, 0.4);
}
.bubble.clustered-cyan {
    background: #a5f3fc;
    border-color: #a5f3fc;
    color: #164e63;
    box-shadow: 0 0 15px rgba(165, 243, 252, 0.4);
}
@keyframes floatUp {
    0% { opacity: 0; transform: translateY(100px) scale(0.8); }
    20% { opacity: 1; transform: translateY(0) scale(1); }
    80% { opacity: 1; transform: translateY(-20px) scale(1); }
    100% { opacity: 0; transform: translateY(-60px) scale(0.9); }
}

/* ── Cluster Cards (Results) ──────────────────────────────── */
.cluster-card {
    border-left: 3px solid var(--kc-accent) !important;
}
.cluster-card:hover {
    border-left-color: var(--kc-accent-hover) !important;
}
.cluster-card .cluster-name {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--kc-text-primary);
}

/* Color-coded metric badges */
.metric-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}
.metric-badge-keywords {
    background: var(--kc-metric-comp-dim);
    color: var(--kc-metric-comp);
}
.metric-badge-volume {
    background: var(--kc-metric-volume-dim);
    color: var(--kc-metric-volume);
}
.metric-badge-cpc {
    background: var(--kc-metric-cpc-dim);
    color: var(--kc-metric-cpc);
}
.metric-badge-comp {
    background: var(--kc-metric-comp-dim);
    color: var(--kc-metric-comp);
}

/* Top keyword highlight */
.cluster-card .top-keyword {
    background: rgba(168, 85, 247, 0.15);
    color: #a855f7;
    padding: 3px 10px;
    border-radius: var(--kc-radius-sm);
    font-size: 0.85rem;
    box-shadow: 0 0 8px rgba(168, 85, 247, 0.1);
}

/* Expand/collapse toggle button */
.toggle-keywords {
    width: 40px;
    height: 40px;
    padding: 0 !important;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50% !important;
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: all var(--kc-transition);
}
.toggle-keywords:hover {
    background: var(--kc-accent-dim);
    border-color: var(--kc-accent);
    color: var(--kc-accent);
}
.toggle-keywords[aria-expanded="true"] i,
.toggle-keywords.expanded i {
    transform: rotate(180deg);
}
.toggle-keywords i {
    transition: transform var(--kc-transition);
}

/* Keywords detail table */
.cluster-keywords-table {
    font-size: 0.9rem;
}

/* Page suggestion section */
.page-suggestion-section {
    border-top: 1px solid var(--kc-border);
    padding-top: 0.75rem;
}
.suggestion-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--kc-text-tertiary);
    margin-bottom: 0.35rem;
}
.suggestion-text {
    font-size: 0.88rem;
    color: var(--kc-text-secondary);
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

/* SERP preview (Google-style) */
.serp-preview {
    background: var(--kc-bg-base);
    border: 1px solid var(--kc-border);
    border-radius: var(--kc-radius-sm);
    padding: 12px 16px;
}
.serp-title {
    font-size: 1rem;
    font-weight: 500;
    color: #8ab4f8;
    line-height: 1.3;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.serp-url {
    font-size: 0.78rem;
    color: var(--kc-text-tertiary);
    margin-bottom: 4px;
}
.serp-description {
    font-size: 0.85rem;
    color: var(--kc-text-secondary);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Keyword pills (alternative to table view) */
.keyword-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--kc-bg-base);
    border: 1px solid var(--kc-border);
    border-radius: 20px;
    font-size: 0.82rem;
    transition: border-color var(--kc-transition);
}
.keyword-pill:hover {
    border-color: var(--kc-accent);
}
.keyword-pill-text {
    color: var(--kc-text-primary);
}
.keyword-pill-vol {
    color: var(--kc-metric-volume);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ── Cluster Map (D3 Visualization) ───────────────────────── */
#clusterMap {
    width: 100%;
    height: 600px;
    border-radius: var(--kc-radius-lg);
    border: 1px solid var(--kc-border);
    background: var(--kc-bg-base);
    overflow: hidden;
}
.map-tooltip {
    position: absolute;
    background: var(--kc-bg-raised);
    border: 1px solid var(--kc-border);
    border-radius: var(--kc-radius-sm);
    padding: 8px 12px;
    font-size: 0.82rem;
    color: var(--kc-text-primary);
    z-index: 1000;
    pointer-events: none;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
    line-height: 1.5;
    font-family: var(--kc-font);
}
.highlight-pulse {
    animation: highlightPulse 2s ease-out;
}
@keyframes highlightPulse {
    0%   { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
    70%  { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { box-shadow: none; }
}

/* ── Share Modal ──────────────────────────────────────────── */
.share-url-display {
    background: var(--kc-bg-base);
    border: 1px solid var(--kc-border);
    border-radius: var(--kc-radius-sm);
    padding: 10px 14px;
    font-family: var(--kc-font-mono);
    font-size: 0.9rem;
    color: var(--kc-accent);
    word-break: break-all;
}

/* ── Empty State ──────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--kc-text-tertiary);
}
.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

/* ── View Toggle (Results Page) ───────────────────────────── */
.view-toggle .btn-group .btn {
    padding: 0.35rem 0.75rem;
}

/* ── Pain Icons (Problem Section) ────────────────────────── */
.pain-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--kc-radius);
    background: var(--kc-status-danger-dim);
    color: var(--kc-status-danger);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

/* ── Before/After Comparison ─────────────────────────────── */
.compare-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--kc-border-subtle);
    font-size: 0.9rem;
    color: var(--kc-text-secondary);
}
.compare-list li:last-child {
    border-bottom: none;
}
.compare-list li i {
    margin-right: 0.5rem;
    font-size: 0.85rem;
}
.compare-without .compare-list li i {
    color: var(--kc-status-danger);
}
.compare-with .compare-list li i {
    color: var(--kc-status-success);
}
.compare-with {
    border-color: rgba(16, 185, 129, 0.25) !important;
}

/* ── Trust Icon Circles (Security Section) ───────────────── */
.trust-icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--kc-accent-dim);
    color: var(--kc-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.15);
}

/* ── Trust Cards (Powered By) ────────────────────────────── */
.trust-card {
    border-color: var(--kc-border) !important;
}
.trust-card:hover {
    border-color: var(--kc-border-accent) !important;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .hero { padding: 3rem 0 2rem; }
    .stat-card .stat-value { font-size: 1.4rem; }
    .bubble-container { height: 200px; }
    #clusterMap { height: 400px; }
}

@media (max-width: 576px) {
    .d-flex.gap-2 { gap: 0.35rem !important; }
    .metric-badge { font-size: 0.72rem; padding: 2px 8px; }
}