:root {
    --white: #ffffff;
    --white-8: rgba(255, 255, 255, 0.08);
    --white-15: rgba(255, 255, 255, 0.15);
    --white-40: rgba(255, 255, 255, 0.80);
    --white-50: rgba(255, 255, 255, 0.70);
    --white-72: rgba(255, 255, 255, 0.85);
    --white-92: rgba(255, 255, 255, 0.92);
    
    --black: #000000;
    --black-6: rgba(0, 0, 0, 0.06);
    --black-8: rgba(0, 0, 0, 0.08);
    --black-15: rgba(0, 0, 0, 0.15);
    --black-40: rgba(0, 0, 0, 0.75);
    --black-50: rgba(0, 0, 0, 0.75);
    --black-56: rgba(0, 0, 0, 0.75);
    --black-72: rgba(0, 0, 0, 0.85);
    --black-92: rgba(0, 0, 0, 0.92);
    
    --primary: #FF7518;
    --primary-dark: #E65A00;
    --surface: #F5F5F5;
    --bg: #EBEBEB;

    /* Semantic tokens */
    --text-main: var(--black-92);
    --text-heading: var(--black);
    --text-sub: var(--black-72);
    --text-muted: var(--black-40);
    
    --bg-app: var(--surface);
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-surface: #ffffff;
    
    --border-main: var(--black-15);
    --border-subtle: var(--black-6);
    
    --shadow-main: 0px 12px 32px rgba(0, 0, 0, 0.04);
    
    --font-heading: "Apfel Grotezk", sans-serif;
    --font-body: "Inter", sans-serif;
    --radius-premium: 24px;
    --transition-premium: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* DARK MODE OVERRIDES — targets both html and body for zero-flash */
html.dark-mode,
body.dark-mode,
[class*="dark-v"] {
    --surface: #0a0a0a;
    --bg: #000000;
    --bg-app: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-surface: #151515;
    --bg-base: #0a0a0a;
    
    --text-main: rgba(255, 255, 255, 0.92);
    --text-heading: #ffffff;
    --text-sub: rgba(255, 255, 255, 0.85);
    --text-muted: rgba(255, 255, 255, 0.80);
    
    --black: #ffffff;
    --black-92: rgba(255, 255, 255, 0.92);
    --black-72: rgba(255, 255, 255, 0.85);
    --black-56: rgba(255, 255, 255, 0.75);
    --black-50: rgba(255, 255, 255, 0.70);
    --black-40: rgba(255, 255, 255, 0.80);
    --black-15: rgba(255, 255, 255, 0.15);
    --black-8: rgba(255, 255, 255, 0.08);
    --black-6: rgba(255, 255, 255, 0.06);
    --black-4: rgba(255, 255, 255, 0.04);
    --black-36: rgba(255, 255, 255, 0.75);
    
    --white-8: rgba(255, 255, 255, 0.08);
    
    --border: rgba(255, 255, 255, 0.08);
    --border-main: rgba(255, 255, 255, 0.15);
    --border-subtle: rgba(255, 255, 255, 0.08);
    
    --shadow-main: 0 20px 50px rgba(0, 0, 0, 0.75);
    --shadow-subtle: 0px 2px 12px rgba(0, 0, 0, 0.2);
    --shadow-medium: 0px 16px 48px -8px rgba(0, 0, 0, 0.75);

    /* Project-Specific Overrides */
    --color-bg: #0A0A0B;
    --color-text-main: #FFFFFF;
    --color-text-sub: rgba(255, 255, 255, 0.80);
    --color-surface-dark: #151517;
    --border-thick: 1px solid rgba(255, 255, 255, 0.1);
    --border-light: 1px solid rgba(255, 255, 255, 0.05);

    color-scheme: dark;
}

body {
    font-family: var(--font-body) !important;
    background-color: var(--bg-app);
    color: var(--text-main);
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading) !important;
    color: var(--text-heading);
}

/* ========================================
   PROJECT PAGE DARK MODE OVERRIDES
   Targets hardcoded inline styles in project case studies
   ======================================== */

/* Hero sections with background: #fff */
body.dark-mode .hero-narrative,
body.dark-mode .story-block.white,
body.dark-mode .story-block {
    background: var(--bg-app) !important;
}

/* Headers with background: rgba(255,255,255,0.85) */
body.dark-mode .main-header {
    background: rgba(10, 10, 10, 0.85) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
}

/* Insight cards with background: #fff */
body.dark-mode .insight-card {
    background: #1a1a1c !important;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Block visuals with background: #fff */
body.dark-mode .block-visual {
    background: #1a1a1c !important;
}

/* UI fragments with background: #fff */
body.dark-mode .ui-fragment {
    background: #1a1a1c !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
}

/* Status badges */
body.dark-mode .status-badge {
    background: rgba(76, 175, 80, 0.15) !important;
    color: #81C784 !important;
}

/* Reading mode toggle */
body.dark-mode .reading-mode-toggle {
    background: rgba(255, 255, 255, 0.05) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
}

/* Switch track */
body.dark-mode .switch-track {
    background: #333 !important;
}

/* Meta items */
body.dark-mode .meta-item {
    background-color: rgba(255, 255, 255, 0.05) !important;
}

/* Narrative copy */
body.dark-mode .narrative-copy {
    color: var(--text-sub) !important;
}

/* Body copy */
body.dark-mode .body-copy,
body.dark-mode .block-text .body-copy {
    color: var(--text-sub) !important;
}

/* Pull quotes */
body.dark-mode .pull-quote {
    color: var(--text-heading) !important;
}

/* Strategy items */
body.dark-mode .strategy-item h4 {
    color: var(--text-heading) !important;
}
body.dark-mode .strategy-item p {
    color: var(--text-sub) !important;
}

/* Nav dots */
body.dark-mode .nav-dot {
    background: rgba(255, 255, 255, 0.15) !important;
}
body.dark-mode .nav-dot.active {
    background: var(--primary) !important;
}

/* Back link */
body.dark-mode .back-link {
    color: var(--text-sub) !important;
}
body.dark-mode .back-link:hover {
    color: var(--primary) !important;
}

/* Header logo */
body.dark-mode .header-logo {
    color: var(--text-heading) !important;
}

/* Meta label/value */
body.dark-mode .meta-label {
    color: var(--text-muted) !important;
}
body.dark-mode .meta-value {
    color: var(--text-heading) !important;
}

/* Hero insight serif text */
body.dark-mode .hero-insight {
    color: var(--text-sub) !important;
}

/* Prop tabs (figma) in project pages */
body.dark-mode .prop-tab {
    color: var(--text-sub) !important;
}
body.dark-mode .prop-tab.active {
    background: #2a2a2a !important;
    color: var(--text-heading) !important;
    border-color: rgba(255,255,255,0.15) !important;
}

/* Section labels */
body.dark-mode .section-label {
    color: var(--text-heading) !important;
}

/* Section actions */
body.dark-mode .section-actions {
    color: var(--text-muted) !important;
}

/* Body::before texture overlay */
body.dark-mode::before {
    opacity: 0.01 !important;
}

/* Sticky notes (these have hardcoded yellow bg - keep it for contrast) */
body.dark-mode .sticky-note.yellow { background: #3d3520 !important; }
body.dark-mode .sticky-note.blue { background: #1a2a30 !important; }
body.dark-mode .sticky-note.pink { background: #301a2a !important; }
body.dark-mode .sticky-note.green { background: #1a301d !important; }
body.dark-mode .sticky-note.orange { background: #302010 !important; }

/* ========================================
   HOME PAGE & PROJECT PAGE INLINE STYLE OVERRIDES
   These use !important to beat inline <style> specificity
   ======================================== */
body.dark-mode .hc-card {
    background-color: #1a1a1c !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
}

body.dark-mode .hc-card h3 {
    color: var(--primary) !important;
}

body.dark-mode .hc-card p,
body.dark-mode .hc-card li {
    color: var(--text-sub) !important;
}

body.dark-mode blockquote {
    background: rgba(255, 117, 24, 0.08) !important;
    border-left-color: var(--primary) !important;
}

body.dark-mode blockquote p {
    color: #FF9A56 !important;
}

body.dark-mode blockquote footer {
    color: var(--text-sub) !important;
}

body.dark-mode table {
    border-color: rgba(255, 255, 255, 0.1) !important;
}

body.dark-mode th {
    background-color: #1a1a1a !important;
    color: var(--text-heading) !important;
}

body.dark-mode td {
    border-color: rgba(255, 255, 255, 0.08) !important;
    color: var(--text-main) !important;
}

body.dark-mode tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.03) !important;
}

body.dark-mode .mini-nav {
    background: rgba(20, 20, 20, 0.8) !important;
    border-color: var(--border-main) !important;
}

/* Image scroll containers in project pages */
body.dark-mode .image-scroll-container {
    background: #151515 !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

/* Image captions */
body.dark-mode .image-caption {
    color: var(--text-muted) !important;
}

/* Lead paragraphs */
body.dark-mode p.lead {
    color: var(--text-sub) !important;
}

/* Card grid items */
body.dark-mode .card-grid .hc-card:not(.dark) {
    background-color: #1a1a1c !important;
}

/* Meta grid (project page headers) */
body.dark-mode .meta-grid {
    border-top-color: rgba(255, 255, 255, 0.15) !important;
}

body.dark-mode .meta-col strong {
    color: rgba(255, 255, 255, 0.75) !important;
}

body.dark-mode .meta-col span {
    color: var(--text-heading) !important;
}

/* Article footer border */
body.dark-mode .article-footer {
    border-top-color: rgba(255, 255, 255, 0.1) !important;
}

/* Medium nav */
body.dark-mode .medium-nav {
    background: rgba(10, 10, 10, 0.8) !important;
    border-bottom-color: rgba(255, 255, 255, 0.1) !important;
}

/* Feedback body border */
body.dark-mode .feedback-body {
    border-right-color: #252528 !important;
}

/* Generic p and li in dark mode project pages */
body.dark-mode section p,
body.dark-mode section li {
    color: var(--text-main) !important;
}

body.dark-mode h4 {
    color: var(--text-sub) !important;
}

/* Metric cards */
body.dark-mode .metric-card {
    background: #1a1a1c !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

body.dark-mode .metric-card .metric-number,
body.dark-mode .metric-card strong {
    color: var(--primary) !important;
}

body.dark-mode .metric-card p,
body.dark-mode .metric-card span {
    color: var(--text-sub) !important;
}

/* Report cards */
body.dark-mode .report-card {
    background: #1a1a1c !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

/* Sticky notes base - white bg and black text */
body.dark-mode .sticky-note {
    background: #2a2520 !important;
    color: var(--text-main) !important;
}

body.dark-mode .sticky-note strong {
    color: var(--text-heading) !important;
}

/* Overview/timeline items */
body.dark-mode .overview-card,
body.dark-mode .timeline-card {
    background: #1a1a1c !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

/* Director sidebar */
body.dark-mode .director-sidebar {
    background: #1a1a1c !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

/* Any card or container with --bg-surface fallback */
body.dark-mode [style*="background: var(--bg-surface"] {
    background: var(--bg-surface) !important;
}

/* Generic dark mode overrides for common patterns */
body.dark-mode .hero-tagline {
    color: var(--primary) !important;
}

body.dark-mode .progress-bar-top {
    background: var(--primary) !important;
}

/* Ensure all `a` tags in dark mode are visible */
body.dark-mode a:not([class]) {
    color: var(--primary) !important;
}

body.dark-mode .top-bar {
    background-color: rgba(15, 15, 15, 0.9) !important;
}

/* Project meta bar items */
body.dark-mode .project-meta-bar .meta-item {
    background-color: rgba(255, 255, 255, 0.05) !important;
}

/* Colored sticky notes in dark - also fix text */
body.dark-mode .sticky-note.blue { background: #1a2a30 !important; color: #c0e0f0 !important; }
body.dark-mode .sticky-note.pink { background: #301a2a !important; color: #f0c0e0 !important; }
body.dark-mode .sticky-note.orange { background: #302010 !important; color: #f0d0a0 !important; }
body.dark-mode .sticky-note.yellow { background: #3d3520 !important; color: #f0e0a0 !important; }
body.dark-mode .sticky-note.green { background: #1a301d !important; color: #c0f0c0 !important; }

/* Figma notification in dark mode */
body.dark-mode .figma-notification {
    background: #1a1a1c !important;
    border: 1px solid rgba(255,255,255,0.1) !important;
}

/* Page background must be dark */
body.dark-mode {
    background-color: var(--bg-app, #0a0a0a);
    color: var(--text-main, rgba(255,255,255,0.92));
}

/* Ensure story blocks with inline styles are dark */
body.dark-mode .story-block[style] {
    background: var(--bg-app) !important;
}

body.dark-mode section[style*="background:#fff"],
body.dark-mode section[style*="background: #fff"],
body.dark-mode div[style*="background:#fff"],
body.dark-mode div[style*="background: #fff"] {
    background: var(--bg-surface) !important;
}

/* Nav dot tooltip background in dark mode */
body.dark-mode .nav-dot::after {
    background: rgba(255, 255, 255, 0.1) !important;
    color: var(--text-heading) !important;
}

/* PREMIUM CONFIGURATION PORTAL (CONTROL CENTER) */
.premium-offcanvas {
    border: 1px solid var(--border-subtle) !important;
    box-shadow: var(--shadow-premium) !important;
    background: var(--bg-card) !important;
    backdrop-filter: blur(30px) saturate(180%) !important;
    width: 440px !important;
    margin: 20px;
    height: calc(100% - 40px) !important;
    border-radius: 32px !important;
    overflow: hidden;
    transition: var(--transition-premium) !important;
}

body.dark-mode .premium-offcanvas {
    background: rgba(20, 20, 20, 0.85) !important;
}

.premium-offcanvas .offcanvas-header {
    padding: 40px 40px 24px 40px;
    border-bottom: none;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.premium-offcanvas .offcanvas-title {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: -1px;
    color: var(--text-heading);
    line-height: 1;
}

.premium-offcanvas .btn-close-premium {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-premium);
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    color: var(--text-main);
}

.premium-offcanvas .btn-close-premium:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(0.9);
}

.premium-offcanvas .offcanvas-body {
    padding: 0 40px 40px 40px;
}

.setting-group {
    margin-bottom: 56px;
    position: relative;
}

.setting-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.setting-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-subtle);
}

/* Theme Choice Visuals (Ultra Premium) */
.theme-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.theme-choice {
    position: relative;
    padding: 8px;
    border-radius: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    cursor: pointer;
    transition: var(--transition-premium);
}

.theme-choice:hover {
    background: var(--bg-app);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.theme-choice.active {
    background: var(--bg-app);
    border-color: var(--primary);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.theme-visual {
    height: 80px;
    border-radius: 14px;
    margin-bottom: 16px;
    display: flex;
    overflow: hidden;
    position: relative;
}

.theme-visual .swatch {
    flex: 1;
    position: absolute;
    inset: 0;
}

.theme-choice .text {
    font-size: 14px;
    font-weight: 800;
    color: var(--text-heading);
    padding: 0 10px;
}

.theme-choice .tag {
    font-size: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: 100px;
    background: var(--border-subtle);
    margin: 6px 10px 10px 10px;
    display: inline-block;
    color: var(--text-main);
}

.theme-choice.active .tag {
    background: var(--primary);
    color: var(--white);
}

/* Experience Toggles (Minimalist Pro) */
.toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    background: var(--bg-card);
    border-radius: 24px;
    margin-bottom: 16px;
    border: 1px solid var(--border-subtle);
    transition: var(--transition-premium);
}

.toggle-item:hover {
    background: var(--bg-app);
}

.toggle-info strong {
    font-size: 15px;
    font-weight: 800;
    color: var(--text-heading);
    display: block;
    margin-bottom: 2px;
}

.toggle-info span {
    font-size: 12px;
    color: var(--black-50);
}

/* Custom Checkbox Styling */
.form-check-input {
    width: 48px !important;
    height: 26px !important;
    background-color: var(--black-15) !important;
    border: none !important;
    cursor: pointer !important;
}

.form-check-input:checked {
    background-color: var(--primary) !important;
}

/* ENVIRONMENT STATES */
body.no-animations *, 
body.no-animations *::before, 
body.no-animations *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
}

body.hide-tooltips .tool-tip {
    display: none !important;
}

/* Developer Mode Overlay */
#devmode-overlay {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 999999;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 16px;
    color: #00FF00;
    font-family: 'Courier New', Courier, monospace;
    font-size: 10px;
    line-height: 1.6;
    pointer-events: none;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-premium);
    border: 1px solid rgba(0,255,0,0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.75);
}

#devmode-overlay.active {
    opacity: 1;
    transform: translateY(0);
}

#devmode-overlay .stat-row {
    display: flex;
    justify-content: space-between;
    gap: 32px;
}

#devmode-overlay .label { color: rgba(0,255,0,0.5); }

/* ========================================
   HOME PAGE POPUPS & USER SIDEBAR OVERRIDES
   ======================================== */
/* User Profile Sidebar Card */
body.dark-mode .sidebar-user .wrap {
    background-color: var(--bg-surface, #1a1a1c) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

body.dark-mode .sidebar-user .user-info .avaiable-dot,
body.dark-mode .sidebar-user .user-info .avaiable-dot span {
    color: var(--text-sub) !important;
}

body.dark-mode .sidebar-user .user-intro-top .text-white {
    color: var(--text-heading) !important;
}

body.dark-mode .intro-author {
    background-color: var(--bg-surface, #1a1a1c) !important;
}

body.dark-mode .intro-author .info_name {
    color: var(--text-heading) !important;
}

body.dark-mode .intro-author .info_duty {
    color: var(--text-sub) !important;
}

/* Popups (Starter Popup, Cert Popup, Split Popup) */
body.dark-mode .split-popup-container,
body.dark-mode .dev-popup-content,
body.dark-mode .cert-popup-container,
body.dark-mode .cert-image-side,
body.dark-mode .cert-content-side,
body.dark-mode .side-design,
body.dark-mode .frame,
body.dark-mode .note-item,
body.dark-mode .code-editor,
body.dark-mode .proto-screen,
body.dark-mode .split-footer-content {
    background-color: var(--bg-surface, #1a1a1c) !important;
    background: var(--bg-surface, #1a1a1c) !important;
    color: var(--text-main) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

body.dark-mode .dev-popup-title,
body.dark-mode .split-headline,
body.dark-mode .cert-title,
body.dark-mode .cert-credential strong {
    color: var(--text-heading) !important;
}

body.dark-mode .dev-popup-msg,
body.dark-mode .split-subheadline,
body.dark-mode .cert-credential,
body.dark-mode .note-item {
    color: var(--text-sub) !important;
}

body.dark-mode .dev-btn-secondary {
    background-color: var(--bg-surface, #1a1a1c) !important;
    color: var(--text-main) !important;
    border-color: rgba(255,255,255,0.1) !important;
}

body.dark-mode .dev-btn-secondary:hover {
    background-color: rgba(255,255,255,0.05) !important;
}

/* Navigation Skip Link (WCAG) */
.nav-skip { position: absolute; top: -100px; left: 0; background: var(--color-accent, #FF7518); color: white; padding: 16px 24px; z-index: 10000; transition: top 0.2s; font-weight: 800; }
.nav-skip:focus { top: 0; outline: none; }


/* OVERRIDES FOR TEXT COLOR IN DARK MODE TO PREVENT MERGING BLENDS */
body.dark-mode .text-black,
body.dark-mode .text-dark,
body.dark-mode .text-black-100 {
    color: var(--text-heading) !important;
}

body.dark-mode .text-black-50,
body.dark-mode .text-black-56,
body.dark-mode .text-black-72,
body.dark-mode .text-muted {
    color: var(--text-sub) !important;
}

body.dark-mode .bg-white,
body.dark-mode .bg-light,
body.dark-mode.bg-white {
    background-color: var(--bg-surface) !important;
}