/* ============================================================
   Research Hub — Shared Design System (theme.css)
   oklch color tokens following shadcn --color- convention
   Fonts: Inter / JetBrains Mono
   Dark mode default (class="dark" on <html>)
   ============================================================ */

/* ── Reset ─────────────────────────────────────────────────── */

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

html {
  scroll-behavior: smooth;
}

/* ── Design Tokens: Light Mode ─────────────────────────────── */

:root {
  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Typography */
  --font-sans: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Core palette */
  --color-background: oklch(0.990 0.005 260);
  --color-foreground: oklch(0.145 0.015 260);
  --color-card: oklch(1 0 0);
  --color-card-foreground: oklch(0.145 0.015 260);
  --color-primary: oklch(0.450 0.200 260);
  --color-primary-foreground: oklch(0.98 0.01 260);
  --color-secondary: oklch(0.965 0.01 260);
  --color-secondary-foreground: oklch(0.3 0.100 260);
  --color-muted: oklch(0.965 0.005 260);
  --color-muted-foreground: oklch(0.55 0.02 260);
  --color-accent: oklch(0.94 0.040 150);
  --color-accent-foreground: oklch(0.3 0.100 150);
  --color-destructive: oklch(0.577 0.245 27.325);
  --color-border: oklch(0.915 0.01 260);
  --color-input: oklch(0.915 0.01 260);
  --color-ring: oklch(0.450 0.200 260);

  /* Charts */
  --color-chart-1: oklch(0.450 0.200 260);
  --color-chart-2: oklch(0.6 0.15 150);
  --color-chart-3: oklch(0.55 0.18 20);
  --color-chart-4: oklch(0.65 0.15 320);
  --color-chart-5: oklch(0.5 0.2 140);

  /* Sidebar */
  --color-sidebar-background: oklch(0.985 0.003 260);
  --color-sidebar-foreground: oklch(0.145 0.015 260);
  --color-sidebar-primary: oklch(0.450 0.200 260);
  --color-sidebar-border: oklch(0.915 0.01 260);

  /* Shorthand color aliases */
  --blue: oklch(0.450 0.200 260);
  --green: oklch(0.6 0.15 150);
  --red: oklch(0.55 0.18 20);
  --amber: oklch(0.7 0.15 80);
  --purple: oklch(0.65 0.15 320);
  --cyan: oklch(0.6 0.15 200);
  --orange: oklch(0.65 0.18 50);
  --pink: oklch(0.65 0.15 350);
  --lime: oklch(0.7 0.18 140);

  /* Country colors (life trajectory) */
  --tw: oklch(0.7 0.15 350);
  --jp: oklch(0.6 0.18 20);
  --cn: oklch(0.75 0.15 80);
  --sg: oklch(0.65 0.15 150);
  --th: oklch(0.7 0.15 320);
}

/* ── Design Tokens: Dark Mode ──────────────────────────────── */

.dark {
  --color-background: oklch(0.13 0.015 260);
  --color-foreground: oklch(0.96 0.005 260);
  --color-card: oklch(0.18 0.02 260);
  --color-card-foreground: oklch(0.96 0.005 260);
  --color-primary: oklch(0.600 0.200 260);
  --color-primary-foreground: oklch(0.1 0.01 260);
  --color-secondary: oklch(0.25 0.02 260);
  --color-secondary-foreground: oklch(0.92 0.005 260);
  --color-muted: oklch(0.25 0.015 260);
  --color-muted-foreground: oklch(0.65 0.02 260);
  --color-accent: oklch(0.25 0.030 150);
  --color-accent-foreground: oklch(0.92 0.005 150);
  --color-destructive: oklch(0.704 0.191 22.216);
  --color-border: oklch(1 0.005 260 / 10%);
  --color-input: oklch(1 0.005 260 / 15%);
  --color-ring: oklch(0.600 0.200 260);

  --color-chart-1: oklch(0.600 0.200 260);
  --color-chart-2: oklch(0.65 0.15 150);
  --color-chart-3: oklch(0.6 0.18 20);
  --color-chart-4: oklch(0.7 0.15 320);
  --color-chart-5: oklch(0.55 0.2 140);

  --color-sidebar-background: oklch(0.13 0.015 260);
  --color-sidebar-foreground: oklch(0.96 0.005 260);
  --color-sidebar-primary: oklch(0.600 0.200 260);
  --color-sidebar-border: oklch(1 0.005 260 / 10%);

  --blue: oklch(0.600 0.200 260);
  --green: oklch(0.65 0.15 150);
  --red: oklch(0.6 0.18 20);
  --amber: oklch(0.75 0.15 80);
  --purple: oklch(0.7 0.15 320);
  --cyan: oklch(0.65 0.15 200);
  --orange: oklch(0.7 0.18 50);
  --pink: oklch(0.7 0.15 350);
  --lime: oklch(0.75 0.18 140);

  --tw: oklch(0.7 0.15 350);
  --jp: oklch(0.6 0.18 20);
  --cn: oklch(0.75 0.15 80);
  --sg: oklch(0.65 0.15 150);
  --th: oklch(0.7 0.15 320);
}

/* ── Base / Body ───────────────────────────────────────────── */

body {
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  text-decoration: underline;
}

code,
pre {
  font-family: var(--font-mono);
}

/* ── Animation ─────────────────────────────────────────────── */

@keyframes fi {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Hero ──────────────────────────────────────────────────── */

.hero {
  padding: 56px 24px 36px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
  background: var(--color-background);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 40%,
    oklch(0.5 0.15 260 / 6%),
    transparent 55%
  );
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 800;
  position: relative;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
  color: var(--color-foreground);
}

.hero h1 span {
  color: var(--color-primary);
}

.hero p {
  color: var(--color-muted-foreground);
  font-size: 0.92rem;
  position: relative;
  max-width: 660px;
  margin: 0 auto;
}

.hero .sub {
  color: var(--color-muted-foreground);
  font-size: 0.8rem;
  margin-top: 8px;
  position: relative;
  opacity: 0.7;
}

/* ── Nav Tabs ──────────────────────────────────────────────── */

nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-background) l c h / 94%);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  scrollbar-width: none;
}

nav::-webkit-scrollbar {
  display: none;
}

.nav-inner {
  display: flex;
  gap: 4px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 16px;
}

.nb {
  background: none;
  border: 1px solid transparent;
  color: var(--color-muted-foreground);
  padding: 7px 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  transition: 0.15s;
  font-family: var(--font-sans);
  text-decoration: none;
  display: inline-block;
}

.nb:hover {
  color: var(--color-foreground);
  background: var(--color-muted);
}

/* ── Container ─────────────────────────────────────────────── */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

/* ── Sections ─────────────────────────────────────────────── */

.sec {
  display: block;
  padding-top: 16px;
  scroll-margin-top: 60px;
}

.sec-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 48px 0 8px;
}

/* ── Headings ──────────────────────────────────────────────── */

h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

h3 {
  font-weight: 600;
  margin: 20px 0 10px;
  font-size: 1rem;
}

.sec-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.sec-sub,
.sub-h {
  color: var(--color-muted-foreground);
  margin-bottom: 20px;
  font-size: 0.9rem;
}

/* ── Tables ────────────────────────────────────────────────── */

.tbl,
.comp-table,
.cmp-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  font-size: 0.82rem;
}

.tbl th,
.comp-table th,
.cmp-table th {
  text-align: left;
  padding: 10px 12px;
  background: var(--color-muted);
  color: var(--color-muted-foreground);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--color-border);
}

.tbl td,
.comp-table td,
.cmp-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.tbl tr:hover td,
.comp-table tr:hover td,
.cmp-table tr:hover td {
  background: oklch(from var(--color-primary) l c h / 3%);
}

.tbl .money {
  font-family: var(--font-mono);
  font-weight: 600;
  text-align: right;
}

.tbl .r { color: var(--red); }
.tbl .g { color: var(--green); }
.tbl .a { color: var(--amber); }
.tbl .b { color: var(--blue); }

/* ── Cards ─────────────────────────────────────────────────── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all 0.2s;
}

.card:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.card-title {
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
}

.card-body ul {
  margin: 6px 0 0 16px;
}

.card-body li {
  margin-bottom: 3px;
}

.card-body strong {
  color: var(--color-foreground);
}

/* ── Stat Cards ────────────────────────────────────────────── */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.stat-card:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
}

.stat-label {
  color: var(--color-muted-foreground);
  font-size: 0.72rem;
  margin-top: 2px;
}

/* ── Tags ──────────────────────────────────────────────────── */

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-mono);
}

.tag-green,
.badge-best {
  background: oklch(from var(--green) l c h / 14%);
  color: var(--green);
}

.tag-blue,
.badge-good {
  background: oklch(from var(--blue) l c h / 14%);
  color: var(--blue);
}

.tag-amber,
.badge-ok {
  background: oklch(from var(--amber) l c h / 14%);
  color: var(--amber);
}

.tag-red,
.badge-bad {
  background: oklch(from var(--red) l c h / 14%);
  color: var(--red);
}

.tag-purple {
  background: oklch(from var(--purple) l c h / 14%);
  color: var(--purple);
}

.tag-cyan {
  background: oklch(from var(--cyan) l c h / 14%);
  color: var(--cyan);
}

.tag-pink {
  background: oklch(from var(--pink) l c h / 14%);
  color: var(--pink);
}

.tag-brand {
  background: oklch(from var(--color-primary) l c h / 14%);
  color: var(--color-primary);
}

/* ── Alerts ────────────────────────────────────────────────── */

.alert {
  border-left: 3px solid;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 14px 18px;
  margin-bottom: 10px;
  background: var(--color-card);
}

.alert-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 3px;
}

.alert-text {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
}

.alert.red,
.alert.critical {
  border-color: var(--red);
}

.alert.red .alert-label,
.alert.critical .alert-label {
  color: var(--red);
}

.alert.amber,
.alert.warning {
  border-color: var(--amber);
}

.alert.amber .alert-label,
.alert.warning .alert-label {
  color: var(--amber);
}

.alert.green,
.alert.info {
  border-color: var(--green);
}

.alert.green .alert-label,
.alert.info .alert-label {
  color: var(--green);
}

.alert.blue,
.alert.brand {
  border-color: var(--color-primary);
}

.alert.blue .alert-label,
.alert.brand .alert-label {
  color: var(--color-primary);
}

.alert.purple {
  border-color: var(--purple);
}

.alert.purple .alert-label {
  color: var(--purple);
}

.alert.cyan {
  border-color: var(--cyan);
}

.alert.cyan .alert-label {
  color: var(--cyan);
}

/* ── Quotes ────────────────────────────────────────────────── */

.quote {
  border-left: 3px solid var(--color-primary);
  padding: 12px 18px;
  margin: 12px 0;
  background: oklch(from var(--color-primary) l c h / 5%);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-muted-foreground);
  font-size: 0.9rem;
}

.quote-src {
  font-style: normal;
  color: var(--color-muted-foreground);
  font-size: 0.8rem;
  margin-top: 4px;
  opacity: 0.7;
}

/* ── Bar Charts ────────────────────────────────────────────── */

.bar-group {
  margin-bottom: 20px;
}

.bar-group-title {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 7px;
}

.bar-flag {
  font-size: 1.1rem;
  width: 28px;
  text-align: center;
  flex-shrink: 0;
}

.bar-name {
  font-size: 0.8rem;
  color: var(--color-muted-foreground);
  width: 80px;
  flex-shrink: 0;
}

.bar-track {
  flex: 1;
  height: 12px;
  background: var(--color-muted);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  transition: width 1s ease;
}

.bar-val {
  font-size: 0.74rem;
  font-weight: 700;
  font-family: var(--font-mono);
  width: 70px;
  flex-shrink: 0;
  text-align: right;
}

/* ── Scenario Cards ────────────────────────────────────────── */

.sc {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  margin-bottom: 12px;
  transition: 0.2s;
}

.sc:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.sc-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.sc-id {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.5px;
  font-family: var(--font-mono);
}

.sc-title {
  font-weight: 700;
  font-size: 1rem;
}

.sc-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sc-tag {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-family: var(--font-mono);
}

.sc-body {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.sc-detail {
  font-size: 0.82rem;
  color: var(--color-muted-foreground);
}

.sc-detail strong {
  color: var(--color-foreground);
}

.sc-detail p {
  margin-bottom: 4px;
}

/* ── Timeline ──────────────────────────────────────────────── */

.tl {
  position: relative;
  padding-left: 36px;
}

.tl::before {
  content: '';
  position: absolute;
  left: 13px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(var(--color-primary), var(--purple), var(--red));
}

.tl-item {
  position: relative;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.tl-item:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.tl-dot {
  position: absolute;
  left: -29px;
  top: 20px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  background: var(--color-background);
}

.tl-year {
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-family: var(--font-mono);
}

.tl-title {
  font-weight: 600;
  margin: 2px 0 4px;
}

.tl-body {
  color: var(--color-muted-foreground);
  font-size: 0.88rem;
}

/* ── Polls ─────────────────────────────────────────────────── */

.poll {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 14px;
}

.poll:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.poll-title {
  font-weight: 600;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.poll-row {
  margin-bottom: 10px;
}

.poll-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 4px;
}

.poll-label span:last-child {
  font-weight: 700;
  font-family: var(--font-mono);
}

.poll-bar {
  height: 10px;
  border-radius: var(--radius-sm);
  background: var(--color-muted);
  overflow: hidden;
}

.poll-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  transition: width 0.8s ease;
}

/* ── Country Cards ─────────────────────────────────────────── */

.country {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 14px;
  transition: 0.2s;
}

.country:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.country-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.country-flag {
  font-size: 2rem;
  flex-shrink: 0;
}

.country-name {
  font-weight: 700;
  font-size: 1.1rem;
}

.country-stance {
  font-size: 0.8rem;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.country-body {
  color: var(--color-muted-foreground);
  font-size: 0.9rem;
}

.country-body ul {
  margin: 8px 0 0 18px;
}

.country-body li {
  margin-bottom: 4px;
}

.country-body strong {
  color: var(--color-foreground);
}

/* ── Country Cards with Color Border (.cc) ─────────────────── */

.cc {
  border-top: 3px solid;
}

.cc.tw { border-top-color: var(--tw); }
.cc.jp { border-top-color: var(--jp); }
.cc.cn { border-top-color: var(--cn); }
.cc.sg { border-top-color: var(--sg); }
.cc.th { border-top-color: var(--th); }

/* ── Safety Cards ──────────────────────────────────────────── */

.safety-card {
  background: var(--color-card);
  border-left: 3px solid;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: 16px 20px;
  margin-bottom: 12px;
}

.safety-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.safety-text {
  color: var(--color-muted-foreground);
  font-size: 0.9rem;
}

.safety-card.critical {
  border-left-color: var(--red);
}

.safety-card.critical .safety-label {
  color: var(--red);
}

.safety-card.warning {
  border-left-color: var(--amber);
}

.safety-card.warning .safety-label {
  color: var(--amber);
}

.safety-card.info {
  border-left-color: var(--green);
}

.safety-card.info .safety-label {
  color: var(--green);
}

/* ── Firmware / Framework Cards ────────────────────────────── */

.fw-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  transition: 0.2s;
}

.fw-card:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.fw-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.fw-name {
  font-weight: 700;
  font-size: 1.15rem;
}

.fw-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.fw-tag {
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: var(--radius-xl);
  background: var(--color-muted);
  color: var(--color-muted-foreground);
}

.fw-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.fw-feat {
  font-size: 0.85rem;
  color: var(--color-muted-foreground);
  display: flex;
  align-items: center;
  gap: 6px;
}

.fw-feat::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.fw-feat.yes::before { background: var(--green); }
.fw-feat.no::before { background: var(--red); }
.fw-feat.partial::before { background: var(--amber); }

/* ── Effort Bars ───────────────────────────────────────────── */

.effort-bar {
  background: var(--color-muted);
  border-radius: var(--radius-sm);
  height: 10px;
  overflow: hidden;
  margin-top: 4px;
}

.effort-fill {
  height: 100%;
  border-radius: var(--radius-sm);
}

/* ── Pipe Cards ────────────────────────────────────────────── */

.pipe {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: 0.2s;
}

.pipe:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.pipe-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
}

.pipe-name {
  font-weight: 700;
  font-size: 0.9rem;
}

.pipe-meta {
  color: var(--color-muted-foreground);
  font-size: 0.8rem;
}

.pipe-cap {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
  margin-left: auto;
}

/* ── Phase Cards ───────────────────────────────────────────── */

.phase {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 16px;
  transition: 0.2s;
}

.phase:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.phase-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  flex-wrap: wrap;
  gap: 8px;
}

.phase-title {
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.phase-time {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
}

.phase-body {
  color: var(--color-muted-foreground);
  font-size: 0.88rem;
}

.phase-body ul {
  margin: 6px 0 0 16px;
}

.phase-body li {
  margin-bottom: 3px;
}

/* ── Persona Cards ─────────────────────────────────────────── */

.persona {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 14px;
  border-top: 3px solid;
}

.persona-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.persona-sub {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
  font-style: italic;
  margin-bottom: 10px;
}

.persona-body {
  color: var(--color-muted-foreground);
  font-size: 0.88rem;
}

/* ── Feature Groups ────────────────────────────────────────── */

.feat-group {
  margin-bottom: 22px;
}

.feat-group-title {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feat-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 8px;
}

.feat-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.88rem;
  color: var(--color-muted-foreground);
  transition: 0.2s;
}

.feat-item:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.feat-item strong {
  color: var(--color-foreground);
}

/* ── VS Comparison ─────────────────────────────────────────── */

.vs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.vs-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.vs-card:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.vs-card.highlight {
  border-color: var(--color-ring);
  background: oklch(from var(--color-primary) l c h / 4%);
}

.vs-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.vs-body {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
}

.vs-body ul {
  margin: 6px 0 0 16px;
}

.vs-body li {
  margin-bottom: 3px;
}

/* ── Scope Cut Cards ───────────────────────────────────────── */

.scope-cut {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.scope-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px;
}

.scope-card h4 {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.scope-card ul {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
  margin-left: 16px;
}

/* ── Arch Box ──────────────────────────────────────────────── */

.arch-box {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-muted-foreground);
  line-height: 2.2;
  overflow-x: auto;
}

/* ── Settings Grid ─────────────────────────────────────────── */

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}

.setting-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.setting-card:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.setting-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.setting-label {
  color: var(--color-muted-foreground);
  font-size: 0.8rem;
  margin-top: 2px;
}

/* ── Material Bars ─────────────────────────────────────────── */

.material-bar {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 12px;
  transition: 0.2s;
}

.material-bar:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.material-name {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.material-meta {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.stat-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ── Inline Stat Bars ──────────────────────────────────────── */

.stat {
  flex: 1;
  min-width: 120px;
}

.stat-bar-wrap {
  background: var(--color-muted);
  border-radius: var(--radius-sm);
  height: 8px;
  overflow: hidden;
}

.stat-bar {
  height: 100%;
  border-radius: var(--radius-sm);
  transition: width 0.8s ease;
}

/* ── Calculator ────────────────────────────────────────────── */

.calc-wrap {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
}

.calc-title {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.calc-row:last-child {
  border-bottom: none;
}

.calc-item {
  color: var(--color-muted-foreground);
  font-size: 0.9rem;
}

.calc-price {
  font-weight: 600;
  font-family: var(--font-mono);
}

.calc-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0 0;
  margin-top: 8px;
  border-top: 2px solid var(--color-primary);
}

.calc-total-label {
  font-weight: 700;
  font-size: 1.1rem;
}

.calc-total-price {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

/* ── Tier Tabs ─────────────────────────────────────────────── */

.tier-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 24px;
  padding: 3px;
  background: var(--color-muted);
  border-radius: var(--radius-md);
  width: fit-content;
}

.tier-tab {
  padding: 6px 16px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--color-muted-foreground);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: 0.15s;
  font-family: var(--font-sans);
}

.tier-tab:hover {
  color: var(--color-foreground);
}

.tier-tab.active {
  background: var(--color-card);
  color: var(--color-foreground);
  box-shadow: 0 1px 3px oklch(0 0 0 / 10%);
}

.tier-content {
  display: none;
}

.tier-content.active {
  display: block;
}

/* ── Checklist Steps ───────────────────────────────────────── */

.tl-step {
  position: relative;
  margin-bottom: 32px;
  padding: 20px 24px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: 0.2s;
}

.tl-step:hover {
  border-color: var(--color-ring);
  transform: translateX(4px);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.tl-step.done .tl-dot {
  background: var(--green);
  border-color: var(--green);
}

.tl-checklist {
  list-style: none;
  margin-top: 10px;
}

.tl-checklist li {
  padding: 4px 0;
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tl-checklist li::before {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: inline-block;
  flex-shrink: 0;
  transition: 0.2s;
}

.tl-checklist li.checked {
  color: var(--green);
  text-decoration: line-through;
}

.tl-checklist li.checked::before {
  background: var(--green);
  border-color: var(--green);
}

.tl-day {
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  font-family: var(--font-mono);
}

/* ── Project Cards ─────────────────────────────────────────── */

.project-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: 0.2s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.project-card:hover {
  border-color: var(--color-ring);
  transform: translateX(4px);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
  text-decoration: none;
}

.project-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

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

.project-name {
  font-weight: 600;
  margin-bottom: 2px;
}

.project-desc {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
}

.project-tag {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--color-muted);
  color: var(--color-muted-foreground);
  margin-top: 6px;
  display: inline-block;
}

.project-link {
  color: var(--color-primary);
  font-size: 0.85rem;
  white-space: nowrap;
}

/* ── 5-Column Grid ─────────────────────────────────────────── */

.c5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

/* ── Color Strip ───────────────────────────────────────────── */

.cstrip {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 4px;
}

.cstrip div {
  flex: 1;
}

/* ── Comparison Cards ──────────────────────────────────────── */

.comp-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 12px;
  transition: 0.2s;
}

.comp-card:hover {
  border-color: var(--color-ring);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 8%);
}

.comp-name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 4px;
}

.comp-desc {
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.comp-meta {
  font-size: 0.78rem;
  color: var(--color-muted-foreground);
}

.comp-price {
  font-weight: 700;
  font-family: var(--font-mono);
}

/* ── Big Number ────────────────────────────────────────────── */

.big-num {
  font-size: 2.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

/* ── Sidebar Navigator ─────────────────────────────────────── */

.rs-toggle {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 9999;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  color: var(--color-muted-foreground);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: 0.15s;
  box-shadow: 0 2px 8px oklch(0 0 0 / 8%);
}

.dark .rs-toggle {
  box-shadow: 0 2px 8px oklch(0 0 0 / 25%);
}

.rs-toggle:hover {
  color: var(--color-foreground);
  border-color: var(--color-ring);
}

.rs-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: oklch(from var(--color-background) l c h / 97%);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--color-border);
  z-index: 9998;
  transform: translateX(-100%);
  transition: transform 0.25s ease;
  overflow-y: auto;
  padding: 56px 16px 24px;
  scrollbar-width: thin;
}

.rs-panel.open {
  transform: translateX(0);
}

.rs-panel.open ~ .rs-toggle {
  left: 248px;
}

.rs-stitle,
.rs-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-muted-foreground);
  font-weight: 700;
  margin: 16px 0 8px;
  padding: 0 4px;
}

.rs-stitle:first-child,
.rs-title:first-child {
  margin-top: 0;
}

.rs-link {
  display: block;
  padding: 7px 10px;
  border-radius: var(--radius-md);
  color: var(--color-muted-foreground);
  text-decoration: none;
  font-size: 0.82rem;
  transition: 0.15s;
  margin-bottom: 2px;
  line-height: 1.3;
}

.rs-link:hover {
  color: var(--color-foreground);
  background: var(--color-muted);
  text-decoration: none;
}

.rs-link.current {
  color: var(--color-primary);
  background: oklch(from var(--color-primary) l c h / 10%);
  font-weight: 600;
}

.rs-sep {
  height: 1px;
  background: var(--color-border);
  margin: 12px 4px;
}

.rs-home {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  transition: 0.15s;
}

.rs-home:hover {
  background: oklch(from var(--color-primary) l c h / 10%);
  text-decoration: none;
}

/* ── Page Theme Toggle ─────────────────────────────────────── */

/* Fixed toggle container — wraps lang + theme toggles at top-right */
.page-fixed-toggles {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  color: var(--color-muted-foreground);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: 0.15s;
  box-shadow: 0 2px 8px oklch(0 0 0 / 8%);
}

.dark .page-theme-toggle {
  box-shadow: 0 2px 8px oklch(0 0 0 / 25%);
}

.page-theme-toggle:hover {
  color: var(--color-foreground);
  border-color: var(--color-ring);
}

/* ── Scrollbar Styling ─────────────────────────────────────── */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-muted);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-muted-foreground);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-muted) transparent;
}

/* ── Responsive: Tablet (max-width 800px) ──────────────────── */

@media (max-width: 800px) {
  .c5 {
    grid-template-columns: 1fr;
  }

  .vs,
  .scope-cut {
    grid-template-columns: 1fr;
  }

  .bar-name {
    width: 60px;
  }

  .bar-val {
    width: 50px;
  }
}

/* ── Responsive: Mobile (max-width 640px) ──────────────────── */

@media (max-width: 640px) {
  .card-grid,
  .feat-list {
    grid-template-columns: 1fr;
  }

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

  .stat-row {
    flex-direction: column;
    gap: 8px;
  }

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

  .hero {
    padding: 40px 16px 24px;
  }

  .container {
    padding: 16px 12px 60px;
  }

  .nav-inner {
    padding: 6px 10px;
  }

  .project-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .big-num {
    font-size: 1.8rem;
  }
}
