/* ==========================================================================
   OMAKASE — OFFICIAL WEB STYLESHEET
   Design Language: Hidden Folks Monochrome (Ink on Paper)
   Typography: Apple San Francisco System Stack
   ========================================================================== */

:root {
  /* Fonts */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Light Theme Tokens (Paper & Ink) */
  --bg-color: #FAFAFA;
  --paper-color: #FFFFFF;
  --ink-primary: #111111;
  --ink-secondary: #5E5E63;
  --ink-tertiary: #8E8E93;
  --ink-muted: #BBBBBB;
  
  --wash: rgba(0, 0, 0, 0.035);
  --wash-hover: rgba(0, 0, 0, 0.065);
  --stroke: rgba(0, 0, 0, 0.10);
  --stroke-strong: rgba(0, 0, 0, 0.22);
  
  --chip-bg: #111111;
  --chip-text: #FFFFFF;
  --chip-inactive-bg: rgba(0, 0, 0, 0.04);
  --chip-inactive-text: #111111;
  --chip-inactive-stroke: rgba(0, 0, 0, 0.14);

  --accent-live: #111111;
  --accent-dot: #10B981;

  --nav-bg: rgba(250, 250, 250, 0.86);
  --modal-overlay: rgba(0, 0, 0, 0.45);
  
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --shadow-subtle: 0 2px 16px rgba(0, 0, 0, 0.03);
  --shadow-card: 0 12px 36px rgba(0, 0, 0, 0.055);
  --shadow-floating: 0 24px 64px rgba(0, 0, 0, 0.09);

  --transition-fast: 0.15s cubic-bezier(0.2, 0, 0, 1);
  --transition-smooth: 0.28s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-spring: 0.42s cubic-bezier(0.175, 0.885, 0.32, 1.12);
}

/* Dark Theme Tokens (OLED Black & White Ink) */
[data-theme="dark"] {
  --bg-color: #000000;
  --paper-color: #0E0E10;
  --ink-primary: #F5F5F7;
  --ink-secondary: #98989F;
  --ink-tertiary: #6E6E73;
  --ink-muted: #444448;

  --wash: rgba(255, 255, 255, 0.055);
  --wash-hover: rgba(255, 255, 255, 0.095);
  --stroke: rgba(255, 255, 255, 0.12);
  --stroke-strong: rgba(255, 255, 255, 0.26);

  --chip-bg: #F5F5F7;
  --chip-text: #000000;
  --chip-inactive-bg: rgba(255, 255, 255, 0.06);
  --chip-inactive-text: #F5F5F7;
  --chip-inactive-stroke: rgba(255, 255, 255, 0.18);

  --accent-live: #F5F5F7;
  --accent-dot: #34D399;

  --nav-bg: rgba(0, 0, 0, 0.84);
  --modal-overlay: rgba(0, 0, 0, 0.76);

  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 12px 36px rgba(0, 0, 0, 0.55);
  --shadow-floating: 0 24px 64px rgba(0, 0, 0, 0.75);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--ink-primary);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
}

body {
  background-color: var(--bg-color);
  color: var(--ink-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
  outline: none;
}

/* ==========================================================================
   LAYOUT CONTAINER
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 660px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 5px 13px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  color: var(--ink-secondary);
}

.section-title {
  font-size: clamp(1.9rem, 3.6vw, 2.55rem);
  font-weight: 700;
  letter-spacing: -0.032em;
  line-height: 1.15;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.075rem;
  color: var(--ink-secondary);
  line-height: 1.62;
}

.live-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-dot);
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

/* ==========================================================================
   NAVBAR & BRANDING
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--stroke);
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

.nav-content {
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.015em;
}

.brand-logo {
  width: 26px;
  height: 26px;
  transition: transform var(--transition-spring), filter var(--transition-fast);
}

[data-theme="dark"] .brand-logo,
[data-theme="dark"] .footer-brand img,
[data-theme="dark"] .ios-logo-img {
  filter: invert(1) brightness(1.2) !important;
}

.brand:hover .brand-logo {
  transform: rotate(10deg) scale(1.04);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--ink-primary);
}

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

.ctrl-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 11px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-primary);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.ctrl-pill:hover {
  background: var(--wash-hover);
  border-color: var(--stroke-strong);
}

.icon-btn {
  width: 34px;
  padding: 0;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 34px;
  padding: 0 16px;
  background: var(--chip-bg);
  color: var(--chip-text);
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 600;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  background: var(--wash);
  color: var(--ink-primary);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 600;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--wash-hover);
  border-color: var(--stroke-strong);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--wash);
  border: 1px solid var(--stroke);
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 62px;
  left: 0;
  right: 0;
  background: var(--paper-color);
  border-bottom: 1px solid var(--stroke);
  padding: 20px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-card);
}

.mobile-drawer.open {
  display: flex;
}

.mobile-drawer a {
  font-size: 1.02rem;
  font-weight: 600;
  padding: 8px 0;
  border-bottom: 1px solid var(--wash);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================= */

.hero {
  padding-top: 132px;
  padding-bottom: 84px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  color: var(--ink-secondary);
}

.hero-title {
  font-size: clamp(2.35rem, 4.5vw, 3.45rem);
  font-weight: 700;
  letter-spacing: -0.036em;
  line-height: 1.1;
  margin-bottom: 22px;
}

.hero-subtitle {
  font-size: 1.16rem;
  color: var(--ink-secondary);
  line-height: 1.64;
  margin-bottom: 34px;
  max-width: 520px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 34px;
}

.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  height: 46px;
  padding: 0 22px;
  background: var(--chip-bg);
  color: var(--chip-text);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.92rem;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.btn-appstore:hover {
  transform: translateY(-1px);
  opacity: 0.9;
}

.btn-appstore svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  font-size: 0.84rem;
  color: var(--ink-tertiary);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 7px;
}

.meta-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--ink-tertiary);
}

/* ==========================================================================
   LIVE INTERACTIVE IPHONE 16 PRO MOCKUP
   ========================================================================== */

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

.device-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.device-screen-tabs {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
}

.device-tab-pill {
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-secondary);
  transition: all var(--transition-fast);
}

.device-tab-pill.active {
  background: var(--chip-bg);
  color: var(--chip-text);
}

.iphone-frame {
  position: relative;
  width: 316px;
  height: 628px;
  background: #141416;
  border-radius: 50px;
  padding: 10px;
  box-shadow: var(--shadow-floating), 0 0 0 1.5px var(--stroke-strong);
  transition: transform var(--transition-spring), box-shadow var(--transition-smooth);
}

.iphone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 40px;
  overflow: hidden;
  background: var(--paper-color);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--stroke);
}

.dynamic-island {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 84px;
  height: 22px;
  background: #000000;
  border-radius: 20px;
  z-index: 15;
}

.ios-statusbar {
  height: 40px;
  padding: 10px 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink-primary);
  flex-shrink: 0;
}

.ios-status-icons {
  display: flex;
  align-items: center;
  gap: 5px;
}

.ios-view {
  display: none;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
}

.ios-view.active {
  display: flex;
  animation: iosFadeIn 0.22s ease-out;
}

@keyframes iosFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.ios-navbar {
  height: 38px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.ios-nav-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
}

.ios-nav-title {
  font-size: 0.9rem;
  font-weight: 700;
}

.ios-cooldown-line {
  height: 2.5px;
  width: 100%;
  background: var(--wash);
  overflow: hidden;
  flex-shrink: 0;
}

.ios-cooldown-fill {
  height: 100%;
  width: 68%;
  background: var(--ink-primary);
}

/* View 1: Feed Card */
.ios-feed-card {
  flex: 1;
  padding: 18px 16px 12px;
  display: flex;
  flex-direction: column;
}

.ios-post-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.ios-post-date {
  font-size: 0.68rem;
  color: var(--ink-tertiary);
}

.ios-hourglass-pill {
  font-size: 0.66rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--wash);
  border: 1px solid var(--stroke);
  color: var(--ink-secondary);
}

.ios-post-title {
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}

.ios-post-body {
  font-size: 0.78rem;
  line-height: 1.62;
  color: var(--ink-primary);
  opacity: 0.92;
  margin-bottom: 14px;
}

.ios-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 14px;
}

.ios-tag {
  font-size: 0.66rem;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--wash);
  border: 1px solid var(--stroke);
  color: var(--ink-secondary);
}

.ios-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--stroke);
  margin-top: auto;
}

.ios-action-left {
  display: flex;
  gap: 10px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.ios-deepdive-pill {
  font-size: 0.66rem;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: var(--radius-full);
  background: var(--chip-bg);
  color: var(--chip-text);
}

.ios-swipe-hint {
  margin-top: 12px;
  padding: 7px 10px;
  width: 100%;
  border-radius: var(--radius-sm);
  background: var(--wash);
  border: 1px dashed var(--stroke);
  font-size: 0.66rem;
  font-weight: 600;
  color: var(--ink-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: background var(--transition-fast);
}

.ios-swipe-hint:hover {
  background: var(--wash-hover);
  color: var(--ink-primary);
}

/* View 2: Full-Screen Bento Categories */
.ios-bento-header {
  padding: 4px 16px 10px;
}

.ios-bento-header h4 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ios-bento-header p {
  font-size: 0.68rem;
  color: var(--ink-secondary);
}

.ios-bento-grid {
  padding: 0 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  flex: 1;
  align-content: start;
}

.ios-bento-tile {
  padding: 10px;
  border-radius: 13px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ios-tile-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2px;
}

.ios-tile-icon {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: var(--paper-color);
  border: 1px solid var(--stroke);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
}

.ios-tile-chev {
  font-size: 0.8rem;
  color: var(--ink-tertiary);
  font-weight: 700;
}

.ios-tile-name {
  font-size: 0.76rem;
  font-weight: 700;
}

.ios-tile-sub {
  font-size: 0.62rem;
  color: var(--ink-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ios-bento-bottom {
  padding: 8px 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-top: auto;
}

.ios-active-chips {
  display: flex;
  gap: 5px;
  overflow: hidden;
}

.ios-chip-active {
  font-size: 0.62rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--chip-bg);
  color: var(--chip-text);
  white-space: nowrap;
}

.ios-chip-inactive {
  font-size: 0.62rem;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--wash);
  border: 1px solid var(--stroke);
  color: var(--ink-secondary);
  white-space: nowrap;
}

.ios-custom-input {
  padding: 7px 10px;
  border-radius: 10px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  color: var(--ink-tertiary);
}

/* View 3: Community Timeline */
.ios-community-wrap {
  padding: 6px 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  flex: 1;
  overflow: hidden;
}

.ios-search-bar {
  padding: 7px 10px;
  border-radius: 10px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.66rem;
  color: var(--ink-tertiary);
}

.ios-shared-card {
  padding: 10px 12px;
  border-radius: 13px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ios-author-row {
  display: flex;
  align-items: center;
  gap: 7px;
}

.ios-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--chip-bg);
  color: var(--chip-text);
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ios-author-name {
  font-size: 0.7rem;
  font-weight: 700;
}

.ios-handle {
  font-weight: 500;
  color: var(--ink-tertiary);
}

.ios-author-time {
  font-size: 0.58rem;
  color: var(--ink-tertiary);
}

.ios-shared-title {
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1.28;
}

.ios-shared-body {
  font-size: 0.66rem;
  line-height: 1.48;
  color: var(--ink-secondary);
}

.ios-reactions-row {
  display: flex;
  gap: 5px;
  margin-top: 2px;
}

.ios-react-pill {
  font-size: 0.6rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--paper-color);
  border: 1px solid var(--stroke);
}

.ios-react-pill.active {
  border-color: var(--ink-primary);
}

/* Bottom Tab Bar inside iPhone */
.ios-tabbar {
  height: 48px;
  border-top: 1px solid var(--stroke);
  background: var(--paper-color);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 4px 12px 6px;
  flex-shrink: 0;
}

.ios-tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--ink-tertiary);
  transition: color var(--transition-fast);
}

.ios-tab-item.active {
  color: var(--ink-primary);
}

/* ==========================================================================
   INTERACTIVE SIMULATOR (LIVE TASTING DEMO)
   ========================================================================== */

.demo-section {
  background: var(--wash);
  border-top: 1px solid var(--stroke);
  border-bottom: 1px solid var(--stroke);
}

.simulator-box {
  background: var(--paper-color);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: grid;
  grid-template-columns: 380px 1fr;
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

/* Left: 12-Category Bento Panel */
.sim-controls {
  padding: 28px;
  border-right: 1px solid var(--stroke);
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--bg-color);
}

.sim-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.sim-control-header h4 {
  font-size: 1.05rem;
  font-weight: 700;
}

.sim-control-header p {
  font-size: 0.82rem;
  color: var(--ink-secondary);
}

.btn-inline-roll {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: var(--radius-full);
  background: var(--paper-color);
  border: 1px solid var(--stroke);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--ink-secondary);
  transition: all var(--transition-fast);
}

.btn-inline-roll:hover {
  border-color: var(--stroke-strong);
  color: var(--ink-primary);
}

.tastes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.taste-chip-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 10px;
  background: var(--paper-color);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-primary);
  text-align: left;
  transition: all var(--transition-fast);
}

.taste-chip-btn:hover {
  border-color: var(--stroke-strong);
  background: var(--wash-hover);
}

.taste-chip-btn.active {
  background: var(--chip-bg);
  color: var(--chip-text);
  border-color: var(--chip-bg);
}

.taste-chip-btn.active .chip-dot {
  background: var(--chip-text);
}

.chip-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ink-muted);
  flex-shrink: 0;
  transition: background-color var(--transition-fast);
}

/* Subtopics Box */
.subtopics-box {
  padding: 12px 14px;
  background: var(--paper-color);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.subtopics-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.subtopics-label {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--ink-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.subtopics-ai-tag {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--ink-tertiary);
}

.subtopics-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.subtopic-pill {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--wash);
  border: 1px solid var(--stroke);
  color: var(--ink-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.subtopic-pill:hover {
  border-color: var(--stroke-strong);
}

.subtopic-pill.active {
  background: var(--chip-bg);
  color: var(--chip-text);
  border-color: var(--chip-bg);
}

.sim-actions {
  margin-top: auto;
}

.btn-generate {
  width: 100%;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--chip-bg);
  color: var(--chip-text);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.btn-generate:hover:not(:disabled) {
  opacity: 0.90;
  transform: translateY(-1px);
}

.btn-generate:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Right: Simulated Screen View */
.sim-viewport {
  display: flex;
  flex-direction: column;
  background: var(--paper-color);
  position: relative;
}

.sim-top-cooldown-track {
  width: 100%;
  height: 3px;
  background: var(--wash);
  overflow: hidden;
}

.sim-top-cooldown-bar {
  height: 100%;
  background: var(--ink-primary);
  width: 0%;
  transition: width 1s linear;
}

.post-card-container {
  max-width: 620px;
  margin: 0 auto;
  padding: 36px 40px;
  width: 100%;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--ink-tertiary);
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.post-title {
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.02em;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--ink-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

.post-body {
  font-size: 1.06rem;
  line-height: 1.72;
  color: var(--ink-primary);
  margin-bottom: 24px;
  min-height: 136px;
  white-space: pre-line;
}

.typewriter-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--ink-primary);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.8s infinite;
}

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

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.tag-badge {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 4px 12px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
  color: var(--ink-secondary);
}

.post-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--stroke);
  margin-top: auto;
}

.action-btn-group {
  display: flex;
  align-items: center;
  gap: 18px;
}

.action-icon-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--ink-secondary);
  transition: color var(--transition-fast);
}

.action-icon-btn:hover {
  color: var(--ink-primary);
}

.deep-dive-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink-primary);
  transition: all var(--transition-fast);
}

.deep-dive-btn:hover {
  background: var(--chip-bg);
  color: var(--chip-text);
  border-color: var(--chip-bg);
}

/* ==========================================================================
   FEATURES GRID (2x2 ARCHITECTURAL BENTO GRID)
   ========================================================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--paper-color);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-spring), border-color var(--transition-fast), box-shadow var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--stroke-strong);
  box-shadow: var(--shadow-card);
}

.feature-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--wash);
  border: 1px solid var(--stroke);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-primary);
  margin-bottom: 22px;
}

.feature-title {
  font-size: 1.22rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.015em;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--ink-secondary);
  line-height: 1.64;
}

/* ==========================================================================
   PHILOSOPHY SECTION
   ========================================================================== */

.philosophy-card {
  background: var(--paper-color);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  box-shadow: var(--shadow-subtle);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 40px;
}

.comparison-col {
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--stroke);
}

.comparison-col.bad {
  background: var(--wash);
}

.comparison-col.good {
  background: var(--paper-color);
  border-color: var(--stroke-strong);
}

.comparison-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.comp-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.comp-indicator.muted {
  background: var(--ink-muted);
}

.comp-indicator.active {
  background: var(--ink-primary);
}

.comparison-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.comparison-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  line-height: 1.52;
}

.comparison-col.bad .comparison-item {
  color: var(--ink-secondary);
}

/* ==========================================================================
   FAQ SECTION (ACCORDION)
   ========================================================================== */

.faq-list {
  max-width: 740px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--paper-color);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--stroke-strong);
}

.faq-question {
  width: 100%;
  padding: 20px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.02rem;
  font-weight: 600;
  text-align: left;
}

.faq-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--transition-smooth);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth), padding var(--transition-smooth);
  padding: 0 26px;
  font-size: 0.94rem;
  color: var(--ink-secondary);
  line-height: 1.62;
}

.faq-item.active .faq-answer {
  max-height: 240px;
  padding-bottom: 22px;
}

/* ==========================================================================
   DOWNLOAD / CTA BANNER
   ========================================================================== */

.cta-banner {
  background: var(--chip-bg);
  color: var(--chip-text);
  border-radius: var(--radius-xl);
  padding: 68px 44px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.cta-banner .section-title {
  color: var(--chip-text);
}

.cta-banner .section-desc {
  color: var(--chip-text);
  opacity: 0.82;
  max-width: 540px;
  margin: 0 auto 32px;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.waitlist-form {
  display: flex;
  gap: 10px;
  max-width: 430px;
  width: 100%;
}

.waitlist-input {
  flex: 1;
  height: 46px;
  padding: 0 18px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.10);
  color: #FFFFFF;
  font-size: 0.92rem;
  outline: none;
}

.waitlist-input::placeholder {
  color: rgba(255, 255, 255, 0.58);
}

[data-theme="dark"] .waitlist-input {
  border: 1px solid rgba(0, 0, 0, 0.22);
  background: rgba(0, 0, 0, 0.08);
  color: #000000;
}

[data-theme="dark"] .waitlist-input::placeholder {
  color: rgba(0, 0, 0, 0.5);
}

.waitlist-submit {
  height: 46px;
  padding: 0 22px;
  border-radius: var(--radius-full);
  background: var(--paper-color);
  color: var(--ink-primary);
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: opacity var(--transition-fast);
}

.waitlist-submit:hover {
  opacity: 0.9;
}

.waitlist-feedback {
  font-size: 0.84rem;
  opacity: 0.9;
  min-height: 1.2em;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  border-top: 1px solid var(--stroke);
  padding: 52px 0 36px;
  font-size: 0.86rem;
  color: var(--ink-secondary);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 28px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--ink-primary);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--stroke);
  padding-top: 22px;
  font-size: 0.78rem;
  color: var(--ink-tertiary);
}

/* ==========================================================================
   MODAL / SHEET (DEEP DIVE READER)
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--modal-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-sheet {
  background: var(--paper-color);
  width: 100%;
  max-width: 620px;
  max-height: 85vh;
  border-top-left-radius: var(--radius-xl);
  border-top-right-radius: var(--radius-xl);
  box-shadow: var(--shadow-floating);
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform var(--transition-smooth);
}

.modal-backdrop.open .modal-sheet {
  transform: translateY(0);
}

.modal-drag-handle {
  width: 36px;
  height: 4px;
  background: var(--stroke-strong);
  border-radius: 3px;
  margin: 12px auto 6px;
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--stroke);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header-title {
  font-weight: 700;
  font-size: 1.02rem;
}

.modal-close-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--wash);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-secondary);
  transition: background var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--stroke);
  color: var(--ink-primary);
}

.modal-body {
  padding: 26px 24px 44px;
  overflow-y: auto;
  font-size: 1.02rem;
  line-height: 1.72;
  color: var(--ink-primary);
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-subtitle {
    margin: 0 auto 32px;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-meta {
    justify-content: center;
  }

  .simulator-box {
    grid-template-columns: 1fr;
  }

  .sim-controls {
    border-right: none;
    border-bottom: 1px solid var(--stroke);
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .section {
    padding: 68px 0;
  }

  .hero {
    padding-top: 108px;
    padding-bottom: 56px;
  }

  .tastes-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .post-card-container {
    padding: 24px 20px;
  }

  .philosophy-card {
    padding: 36px 22px;
  }

  .cta-banner {
    padding: 44px 22px;
  }

  .waitlist-form {
    flex-direction: column;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}