/* ═══════════════════════════════════════════════════════════
   VAEL — Brand Identity Case Study
   Design System & Presentation Stylesheet
   ═══════════════════════════════════════════════════════════ */

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

/* ─── Design Tokens ─── */
:root {
  /* Color — Darkness Scale */
  --void:      #09090B;
  --surface:   #111113;
  --charcoal:  #18181B;
  --graphite:  #27272A;
  --slate:     #3F3F46;
  --silver:    #71717A;
  --ash:       #A1A1AA;
  --cloud:     #D4D4D8;
  --snow:      #FAFAFA;
  --white:     #FFFFFF;

  /* Color — Accent (Refined Indigo) */
  --accent:        #6366F1;
  --accent-light:  #818CF8;
  --accent-muted:  #4F46E5;
  --accent-subtle: rgba(99,102,241,0.08);
  --accent-glow:   rgba(99,102,241,0.15);

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Type Scale (1.25 ratio — Major Third) */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;
  --text-7xl:  4.5rem;
  --text-8xl:  6rem;

  /* Spacing (8px base) */
  --sp-1:  4px;
  --sp-2:  8px;
  --sp-3:  12px;
  --sp-4:  16px;
  --sp-5:  20px;
  --sp-6:  24px;
  --sp-8:  32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;
  --sp-24: 96px;
  --sp-32: 128px;
  --sp-40: 160px;

  /* Radii */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 0.5s;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  color: var(--cloud);
  background-color: var(--void);
  overflow-x: hidden;
}

::selection {
  background: var(--accent);
  color: var(--white);
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--accent-light);
  text-decoration: none;
}

/* ─── Typography ─── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  color: var(--white);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-7xl); }
h2 { font-size: var(--text-5xl); margin-bottom: var(--sp-8); }
h3 { font-size: var(--text-3xl); margin-bottom: var(--sp-6); }
h4 { font-size: var(--text-xl);  margin-bottom: var(--sp-4); font-weight: 500; }

p {
  max-width: 640px;
  margin-bottom: var(--sp-6);
  color: var(--ash);
}

.label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-4);
  display: block;
}

.subtitle {
  font-size: var(--text-lg);
  color: var(--silver);
  font-weight: 400;
  max-width: 540px;
}

.text-gradient {
  background: linear-gradient(135deg, var(--white) 0%, var(--ash) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Layout ─── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-8);
}

.section {
  padding: var(--sp-40) 0;
  position: relative;
}

.section--compact {
  padding: var(--sp-24) 0;
}

.section + .section {
  border-top: 1px solid var(--graphite);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ─── Cover / Hero ─── */
.cover {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--graphite);
}

.cover::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.5;
}

.cover__symbol {
  width: 80px;
  height: 80px;
  margin-bottom: var(--sp-10);
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.2s forwards;
}

.cover__title {
  font-size: var(--text-8xl);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--white);
  margin-bottom: var(--sp-6);
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.4s forwards;
}

.cover__tagline {
  font-size: var(--text-lg);
  color: var(--silver);
  letter-spacing: 0.08em;
  font-weight: 400;
  margin-bottom: var(--sp-12);
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.6s forwards;
}

.cover__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--slate);
  letter-spacing: 0.1em;
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.8s forwards;
}

/* ─── Section Header ─── */
.section-header {
  margin-bottom: var(--sp-16);
}

.section-number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--slate);
  letter-spacing: 0.15em;
  margin-bottom: var(--sp-3);
  display: block;
}

/* ─── Cards ─── */
.card {
  background: var(--surface);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  transition: border-color var(--duration) var(--ease-out);
}

.card:hover {
  border-color: var(--slate);
}

.card__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
}

.card__title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--sp-3);
}

.card__text {
  font-size: var(--text-sm);
  color: var(--ash);
  line-height: 1.7;
}

/* ─── Name Candidates ─── */
.name-list {
  list-style: none;
}

.name-list li {
  display: flex;
  align-items: baseline;
  gap: var(--sp-4);
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--graphite);
  font-size: var(--text-lg);
}

.name-list li:last-child {
  border-bottom: none;
}

.name-list .name {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--white);
  min-width: 140px;
  letter-spacing: 0.05em;
}

.name-list .desc {
  color: var(--silver);
  font-size: var(--text-sm);
}

.name-list .selected {
  color: var(--accent-light);
}

.name-list .selected .name {
  color: var(--accent-light);
}

/* ─── Logo Display ─── */
.logo-showcase {
  display: grid;
  gap: var(--sp-6);
}

.logo-frame {
  background: var(--surface);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-16) var(--sp-8);
  position: relative;
  overflow: hidden;
  min-height: 240px;
}

.logo-frame--light {
  background: var(--snow);
  border-color: var(--cloud);
}

.logo-frame--accent {
  background: var(--accent-muted);
  border-color: transparent;
}

.logo-frame__label {
  position: absolute;
  top: var(--sp-4);
  left: var(--sp-4);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
  padding: var(--sp-1) var(--sp-3);
  background: var(--charcoal);
  border-radius: var(--radius-sm);
}

.logo-frame--light .logo-frame__label {
  background: var(--cloud);
  color: var(--silver);
}

/* ─── Color Swatches ─── */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--sp-4);
}

.swatch {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--graphite);
}

.swatch__color {
  height: 100px;
  width: 100%;
}

.swatch__info {
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface);
}

.swatch__name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--white);
  display: block;
}

.swatch__hex {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--silver);
}

/* ─── Typography Specimen ─── */
.type-specimen {
  margin-bottom: var(--sp-12);
}

.type-specimen__sample {
  font-size: var(--text-6xl);
  line-height: 1.1;
  color: var(--white);
  margin-bottom: var(--sp-4);
}

.type-specimen__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--silver);
  letter-spacing: 0.05em;
}

.type-scale {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.type-scale__row {
  display: flex;
  align-items: baseline;
  gap: var(--sp-6);
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--graphite);
}

.type-scale__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--slate);
  min-width: 80px;
  flex-shrink: 0;
}

.type-scale__sample {
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─── Brand Element: Button ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  letter-spacing: 0.01em;
}

.btn--primary {
  background: var(--white);
  color: var(--void);
}

.btn--primary:hover {
  background: var(--cloud);
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--graphite);
}

.btn--secondary:hover {
  border-color: var(--slate);
  background: var(--accent-subtle);
}

.btn--accent {
  background: var(--accent);
  color: var(--white);
}

.btn--accent:hover {
  background: var(--accent-muted);
  transform: translateY(-1px);
}

/* ─── System Elements Showcase ─── */
.element-box {
  background: var(--surface);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
}

.spacing-bar {
  background: var(--accent-subtle);
  border: 1px solid rgba(99,102,241,0.15);
  border-radius: var(--radius-sm);
  height: 32px;
  display: flex;
  align-items: center;
  padding: 0 var(--sp-3);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent-light);
  margin-bottom: var(--sp-2);
}

.icon-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--sp-4);
}

.icon-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--charcoal);
  border-radius: var(--radius-md);
  color: var(--cloud);
}

/* ─── Mockups ─── */
.mockup-section {
  display: grid;
  gap: var(--sp-10);
}

/* Website Hero Mockup */
.mockup-browser {
  background: var(--surface);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.4);
}

.mockup-browser__bar {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-4) var(--sp-5);
  background: var(--charcoal);
  border-bottom: 1px solid var(--graphite);
}

.mockup-browser__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--graphite);
}

.mockup-browser__url {
  flex: 1;
  margin-left: var(--sp-4);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: var(--sp-1) var(--sp-4);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--silver);
}

.mockup-browser__content {
  padding: var(--sp-24) var(--sp-16);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
  min-height: 500px;
  justify-content: center;
}

.mockup-browser__content::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.4;
}

/* Phone Mockup */
.mockup-phone {
  width: 280px;
  height: 570px;
  background: var(--charcoal);
  border: 2px solid var(--graphite);
  border-radius: 40px;
  padding: 12px;
  margin: 0 auto;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
  position: relative;
}

.mockup-phone__notch {
  width: 100px;
  height: 28px;
  background: var(--charcoal);
  border-radius: 0 0 16px 16px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.mockup-phone__screen {
  background: var(--void);
  border-radius: 30px;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.mockup-phone__screen::before {
  content: '';
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.3;
}

/* App Icon Mockup */
.mockup-app-icon {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  background: var(--void);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

/* Business Card Mockup */
.mockup-cards {
  display: flex;
  gap: var(--sp-8);
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  perspective: 1000px;
}

.mockup-card {
  width: 360px;
  height: 210px;
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 16px 60px rgba(0,0,0,0.4);
  position: relative;
  overflow: hidden;
}

.mockup-card--front {
  background: var(--void);
  border: 1px solid var(--graphite);
}

.mockup-card--back {
  background: var(--surface);
  border: 1px solid var(--graphite);
  transform: rotate(2deg);
}

.mockup-card__logo svg {
  width: 40px;
  height: 40px;
}

.mockup-card__name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.02em;
}

.mockup-card__role {
  font-size: var(--text-xs);
  color: var(--silver);
  margin-top: 2px;
}

.mockup-card__contact {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--slate);
  letter-spacing: 0.02em;
  line-height: 1.8;
}

/* Laptop Mockup */
.mockup-laptop {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.mockup-laptop__screen {
  background: var(--charcoal);
  border: 2px solid var(--graphite);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 8px;
  position: relative;
}

.mockup-laptop__display {
  background: var(--void);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 480px;
}

.mockup-laptop__base {
  height: 16px;
  background: linear-gradient(180deg, var(--graphite) 0%, var(--charcoal) 100%);
  border-radius: 0 0 8px 8px;
  margin: 0 -20px;
  position: relative;
}

.mockup-laptop__base::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: var(--slate);
  border-radius: 4px 4px 0 0;
}

/* Poster / Billboard Mockup */
.mockup-poster {
  max-width: 800px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  background: var(--void);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 32px 100px rgba(0,0,0,0.5);
}

.mockup-poster::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(0deg, var(--accent-subtle) 0%, transparent 100%);
  pointer-events: none;
}

/* Social Media Preview */
.mockup-social {
  max-width: 400px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 16px 60px rgba(0,0,0,0.3);
}

.mockup-social__banner {
  height: 120px;
  background: linear-gradient(135deg, var(--void) 0%, var(--accent-subtle) 100%);
  position: relative;
}

.mockup-social__avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--void);
  border: 3px solid var(--surface);
  position: absolute;
  bottom: -36px;
  left: var(--sp-6);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mockup-social__info {
  padding: 44px var(--sp-6) var(--sp-6);
}

.mockup-social__name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--white);
}

.mockup-social__handle {
  font-size: var(--text-sm);
  color: var(--silver);
}

.mockup-social__bio {
  font-size: var(--text-sm);
  color: var(--ash);
  margin-top: var(--sp-2);
}

/* Logo Dark/Light Comparison */
.logo-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--graphite);
  box-shadow: 0 24px 80px rgba(0,0,0,0.4);
}

.logo-compare__dark,
.logo-compare__light {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-20) var(--sp-12);
}

.logo-compare__dark {
  background: var(--void);
}

.logo-compare__light {
  background: var(--snow);
}

/* ─── Divider ─── */
.divider {
  width: 48px;
  height: 1px;
  background: var(--graphite);
  margin: var(--sp-8) 0;
}

.divider--accent {
  background: var(--accent);
  width: 32px;
  height: 2px;
}

/* ─── Data Table ─── */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--graphite);
  font-size: var(--text-sm);
}

.data-table th {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--slate);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.data-table td {
  color: var(--ash);
}

.data-table td:first-child {
  color: var(--white);
  font-weight: 500;
}

/* ─── Closing ─── */
.closing {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.closing__mark {
  font-size: var(--text-8xl);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--white);
  margin-bottom: var(--sp-6);
}

.closing__line {
  font-size: var(--text-lg);
  color: var(--silver);
  max-width: 400px;
}

/* ─── Footer ─── */
.footer {
  padding: var(--sp-12) 0;
  text-align: center;
  border-top: 1px solid var(--graphite);
}

.footer p {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--slate);
  letter-spacing: 0.1em;
  margin: 0 auto;
}

/* ─── Animations ─── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  h1 { font-size: var(--text-5xl); }
  h2 { font-size: var(--text-4xl); }

  .cover__title {
    font-size: var(--text-6xl);
  }

  .section {
    padding: var(--sp-24) 0;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .logo-compare {
    grid-template-columns: 1fr;
  }

  .mockup-cards {
    flex-direction: column;
    align-items: center;
  }

  .mockup-card--back {
    transform: none;
  }
}

@media (max-width: 480px) {
  .cover__title {
    font-size: var(--text-5xl);
    letter-spacing: 0.12em;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 var(--sp-5);
  }

  .mockup-card {
    width: 100%;
  }
}

/* ═══════════════════════════════════════════════════════════
   THEME TOGGLE
   ═══════════════════════════════════════════════════════════ */

.theme-toggle {
  position: fixed;
  top: var(--sp-6);
  right: var(--sp-6);
  z-index: 1000;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--graphite);
  background: var(--surface);
  color: var(--cloud);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--ease-out);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.theme-toggle:hover {
  border-color: var(--slate);
  background: var(--charcoal);
  transform: scale(1.05);
}

.theme-toggle__moon {
  display: none;
}

.theme-toggle__sun {
  display: block;
}

/* ═══════════════════════════════════════════════════════════
   LIGHT THEME
   ═══════════════════════════════════════════════════════════ */

[data-theme="light"] {
  --void:      #FFFFFF;
  --surface:   #F8F8FA;
  --charcoal:  #F0F0F3;
  --graphite:  #E4E4E7;
  --slate:     #A1A1AA;
  --silver:    #71717A;
  --ash:       #52525B;
  --cloud:     #3F3F46;
  --snow:      #18181B;
  --white:     #09090B;

  --accent-subtle: rgba(99,102,241,0.06);
  --accent-glow:   rgba(99,102,241,0.08);
}

[data-theme="light"] body {
  color: var(--cloud);
  background-color: var(--void);
}

[data-theme="light"] .theme-toggle {
  background: var(--surface);
  border-color: var(--graphite);
  color: var(--cloud);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

[data-theme="light"] .theme-toggle:hover {
  background: var(--charcoal);
}

[data-theme="light"] .theme-toggle__sun {
  display: none;
}

[data-theme="light"] .theme-toggle__moon {
  display: block;
}

[data-theme="light"] .text-gradient {
  background: linear-gradient(135deg, #09090B 0%, #3F3F46 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .cover::before {
  background: radial-gradient(circle, rgba(99,102,241,0.06) 0%, transparent 70%);
}

[data-theme="light"] .mockup-browser {
  box-shadow: 0 24px 80px rgba(0,0,0,0.08);
}

[data-theme="light"] .mockup-phone {
  box-shadow: 0 24px 80px rgba(0,0,0,0.1);
  background: var(--charcoal);
  border-color: var(--graphite);
}

[data-theme="light"] .mockup-phone__screen {
  background: #09090B;
}

[data-theme="light"] .mockup-phone__notch {
  background: #09090B;
}

[data-theme="light"] .mockup-phone__screen .theme-toggle__sun,
[data-theme="light"] .mockup-phone__screen span,
[data-theme="light"] .mockup-phone__screen div {
  color: inherit;
}

[data-theme="light"] .mockup-poster {
  background: #09090B;
  border-color: var(--graphite);
  box-shadow: 0 32px 100px rgba(0,0,0,0.1);
}

[data-theme="light"] .mockup-poster .mockup-poster__text,
[data-theme="light"] .mockup-poster div[style*="color:var(--white)"] {
  color: #FAFAFA;
}

[data-theme="light"] .mockup-card--front {
  background: #09090B;
  border-color: #27272A;
}

[data-theme="light"] .mockup-card--back {
  background: #111113;
  border-color: #27272A;
}

[data-theme="light"] .mockup-social__avatar {
  background: #09090B;
  border-color: var(--surface);
}

[data-theme="light"] .mockup-social__banner {
  background: linear-gradient(135deg, #09090B 0%, rgba(99,102,241,0.1) 100%);
}

[data-theme="light"] .logo-compare__dark {
  background: #09090B;
}

[data-theme="light"] .logo-compare__light {
  background: #FAFAFA;
}

[data-theme="light"] .logo-compare {
  box-shadow: 0 24px 80px rgba(0,0,0,0.08);
}

[data-theme="light"] .mockup-laptop__screen {
  background: var(--charcoal);
  border-color: var(--graphite);
}

[data-theme="light"] .mockup-laptop__display {
  background: #09090B;
}

[data-theme="light"] .mockup-laptop__base {
  background: linear-gradient(180deg, var(--graphite) 0%, var(--charcoal) 100%);
}

[data-theme="light"] .mockup-app-icon,
[data-theme="light"] .icon-cell {
  background: var(--charcoal);
}

[data-theme="light"] .closing__mark {
  background: linear-gradient(135deg, #09090B 0%, #3F3F46 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .logo-frame--light {
  background: var(--snow);
  border-color: var(--graphite);
}

[data-theme="light"] .logo-frame--light .logo-frame__label {
  background: var(--graphite);
  color: var(--silver);
}

[data-theme="light"] .swatch {
  border-color: var(--graphite);
}

[data-theme="light"] .spacing-bar {
  background: rgba(99,102,241,0.06);
  border-color: rgba(99,102,241,0.1);
}

[data-theme="light"] ::selection {
  background: var(--accent);
  color: #FFFFFF;
}

/* Fix: Invert SVG symbol fills to dark in light theme */
[data-theme="light"] svg polygon[fill="#FAFAFA"] {
  fill: #09090B;
}

/* Keep original light fills inside mockup containers that stay dark */
[data-theme="light"] .mockup-phone__screen svg polygon[fill="#FAFAFA"],
[data-theme="light"] .mockup-poster svg polygon[fill="#FAFAFA"],
[data-theme="light"] .mockup-card--front svg polygon[fill="#FAFAFA"],
[data-theme="light"] .mockup-card--back svg polygon[fill="#FAFAFA"],
[data-theme="light"] .mockup-social__avatar svg polygon[fill="#FAFAFA"],
[data-theme="light"] .mockup-social__banner svg polygon[fill="#FAFAFA"],
[data-theme="light"] .logo-compare__dark svg polygon[fill="#FAFAFA"],
[data-theme="light"] .logo-frame--accent svg polygon[fill="#FFFFFF"] {
  fill: #FAFAFA;
}

/* Also fix the logo-frame--light background in light mode */
[data-theme="light"] .logo-frame--light {
  background: #F4F4F5;
  border-color: var(--graphite);
}