/* ============ Nortly Brand Guidelines — styles ============ */

/* Theme tokens */
:root {
  --pg: #F7F7F2;
  --card: #FFFFFF;
  --bd: #DDE0D6;
  --tx: #131B15;
  --tx2: #3B473F;
  --tx3: #55645A;
  --chip: #ECEEE6;
  --mut: #68746C;
  --pine: #1E8A5E;
  --pine-deep: #16714B;
  /* darker green for small text — WCAG AA on light surfaces */
  --green-text: #17724B;
  --emerald: #2FB57E;
  --forest: #0E1F17;
  --ink: #131B15;
  --paper: #F4F6F1;
  color-scheme: light;
}

[data-theme="dark"] {
  --pg: #0B1410;
  --card: #111E17;
  --bd: rgba(244, 246, 241, 0.13);
  --tx: #F4F6F1;
  --tx2: #C2CEC5;
  --tx3: #98AA9E;
  --chip: rgba(244, 246, 241, 0.07);
  --mut: #748A7C;
  --green-text: #2FB57E;
  color-scheme: dark;
}

/* Base */
* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--pg);
}

body {
  font-family: 'Instrument Sans', sans-serif;
  color: var(--tx);
  transition: background 0.3s, color 0.3s;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; }
p { margin: 0; }

/* Animations */
@keyframes settleLoop {
  0% { transform: rotate(-140deg); }
  22% { transform: rotate(14deg); }
  30% { transform: rotate(-7deg); }
  36% { transform: rotate(3deg); }
  42%, 78% { transform: rotate(0deg); }
  100% { transform: rotate(-140deg); }
}
@keyframes spinLoad {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
@keyframes ping {
  0% { transform: scale(0.55); opacity: 0.9; }
  80%, 100% { transform: scale(1.5); opacity: 0; }
}
@keyframes starBlink {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}
@keyframes drawRing {
  0% { stroke-dashoffset: 182; }
  35%, 70% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -182; }
}
@keyframes seek {
  0%, 100% { transform: rotate(0deg); }
  20% { transform: rotate(-16deg); }
  45% { transform: rotate(11deg); }
  65% { transform: rotate(-5deg); }
  80% { transform: rotate(2deg); }
}

.anim-star { animation: starBlink 6s ease-in-out infinite; }
.anim-settle {
  transform-origin: 32px 32px;
  animation: settleLoop 6s cubic-bezier(0.22, 1, 0.36, 1) infinite;
}
.anim-draw-ring {
  transform-origin: 32px 32px;
  animation: drawRing 2.8s ease-in-out infinite, spinLoad 2.8s linear infinite;
}
.anim-seek {
  transform-origin: 32px 32px;
  animation: seek 2.8s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .anim-star, .anim-settle, .anim-draw-ring, .anim-seek, .radar-ring {
    animation: none !important;
  }
}

/* Shared bits */
.mono-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: #7E9488;
}
.mono-label.sm { font-size: 11.5px; }

.light-surface { background: #FFFFFF; border: 1px solid #DDE0D6; }
.forest-surface { background: #0E1F17; }
.pine-surface { background: #1E8A5E; }
.light-stage { background: #F7F7F2; border: 1px solid #ECEEE6; }

/* Theme toggle */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 100;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  color: var(--tx);
  border: 1px solid var(--bd);
  border-radius: 999px;
  padding: 9px 18px;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 6px 20px -8px rgba(0, 0, 0, 0.25);
  transition: transform 0.15s, background 0.3s, color 0.3s;
}
.theme-toggle:hover { transform: translateY(-1px); }
.theme-toggle:active { transform: scale(0.96); }
.theme-toggle-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #1E8A5E;
  display: inline-block;
}

/* ============ Cover ============ */
.cover {
  background: #0E1F17;
  min-height: 640px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(28px, 5vw, 56px) clamp(20px, 5vw, 64px);
  gap: 40px;
}
.cover-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  /* keep clear of the fixed theme toggle */
  padding-right: 150px;
}
.cover-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}
.cover-wordmark {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: clamp(42px, 11vw, 72px);
  letter-spacing: -0.035em;
  color: #F4F6F1;
  margin: 0;
  line-height: 1;
}
.cover-tagline {
  font-size: 18px;
  color: #9CB4A6;
  text-align: center;
  max-width: 480px;
  line-height: 1.5;
}
.cover-foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
}
.cover-desc {
  font-size: 14px;
  color: #788D80;
  max-width: 420px;
  line-height: 1.6;
}

@media (max-width: 600px) {
  .cover-meta { padding-right: 118px; flex-wrap: wrap; gap: 4px 16px; }
  .cover-foot { flex-wrap: wrap; }
  .theme-toggle { padding: 8px 12px; font-size: 12.5px; }
}

/* ============ Sections ============ */
.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(48px, 9vw, 88px) clamp(20px, 5vw, 64px) 0;
}
.section-last { padding-bottom: 96px; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  border-bottom: 1px solid var(--bd);
  padding-bottom: 20px;
}
.section-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--green-text);
}
.section-title {
  font-family: 'Sora', sans-serif;
  font-size: clamp(23px, 4.5vw, 32px);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--tx);
}
.section-lede {
  font-size: 15px;
  line-height: 1.6;
  color: var(--tx3);
  max-width: 640px;
  margin: 24px 0 32px;
}

/* Grids */
.grid-story,
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(24px, 5vw, 48px);
  margin-top: 40px;
}
.grid-2.center { align-items: center; }
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.gap-16 { gap: 16px; }
.mt-32 { margin-top: 32px; }

/* ============ 01 Brand story ============ */
.prose p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--tx2);
}
.prose p + p { margin-top: 18px; }
.prose strong { color: var(--tx); }

.story-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.promise-card {
  background: #0E1F17;
  border-radius: 16px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.promise-text {
  font-family: 'Sora', sans-serif;
  font-size: 19px;
  line-height: 1.5;
  font-weight: 600;
  color: #F4F6F1;
}
.note-card {
  background: var(--card);
  border: 1px solid var(--bd);
  border-radius: 16px;
  padding: 24px 28px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--tx3);
}
.note-card strong { color: var(--tx); }

/* ============ 02 The mark ============ */
.body-copy {
  font-size: 16px;
  line-height: 1.65;
  color: var(--tx2);
}
.spec-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: var(--tx3);
}
.spec-list li {
  display: flex;
  gap: 10px;
}
.spec-list li::before {
  content: "·";
  color: #1E8A5E;
  font-weight: 700;
}
.construction-canvas {
  background: var(--card);
  border: 1px solid var(--bd);
  border-radius: 16px;
  height: 340px;
  display: grid;
  place-items: center;
}

/* ============ 03/04 Lockups ============ */
.lockup-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.lockup-main {
  flex: 2 1 380px;
  border-radius: 16px;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
}
.lockup-side {
  flex: 1 1 240px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.lockup-tile {
  border-radius: 16px;
  flex: 1;
  min-height: 100px;
  display: grid;
  place-items: center;
}
.lockup-wordmark {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: clamp(30px, 6vw, 46px);
  letter-spacing: -0.035em;
}
.lockup-wordmark-sm {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 30px;
  letter-spacing: -0.03em;
}
.ink { color: #131B15; }
.paper { color: #F4F6F1; }

/* Chips */
.chip-grid {
  margin-top: 16px;
  display: grid;
  gap: 16px;
}
.chip-grid.min-220 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.chip-grid.min-260 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.chip {
  background: var(--chip);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 13.5px;
  color: var(--tx3);
  line-height: 1.5;
}
.chip strong { color: var(--tx); }
.rule-note {
  margin-top: 16px;
  max-width: 760px;
}

/* ============ 05 Colors ============ */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.swatch {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--bd);
}
.swatch-color { height: 120px; }
.paper-swatch { border-bottom: 1px solid #ECEEE6; }
.swatch-info {
  background: var(--card);
  padding: 14px;
}
.swatch-name {
  font-weight: 600;
  font-size: 14px;
  color: var(--tx);
}
.swatch-hex {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--mut);
  margin-top: 4px;
}
.swatch-role {
  font-size: 12px;
  color: var(--mut);
  margin-top: 6px;
}

/* ============ 06 Clear space ============ */
.space-card {
  background: var(--card);
  border: 1px solid var(--bd);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.space-stage {
  display: grid;
  place-items: center;
  flex: 1;
  padding: 20px 0;
}
.clear-space-demo {
  position: relative;
  padding: 34px;
}
.clear-space-frame {
  position: absolute;
  inset: 0;
  border: 1.5px dashed #D97757;
  border-radius: 8px;
}
.size-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex: 1;
}
.size-demo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.size-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  color: var(--mut);
}
.space-caption {
  font-size: 13.5px;
  color: var(--tx3);
  line-height: 1.5;
}
.space-caption strong { color: var(--tx); }

/* ============ 07/09 Demo cards ============ */
.demo-card {
  background: var(--card);
  border: 1px solid var(--bd);
  border-radius: 16px;
  overflow: hidden;
}
.demo-stage {
  display: grid;
  place-items: center;
}
.demo-stage.light-stage { border: none; border-bottom: 1px solid #ECEEE6; }
.h-190 { height: 190px; }
.h-210 { height: 210px; }
.h-230 { height: 230px; }
.demo-body { padding: 20px 24px; }
.demo-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.demo-title {
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: var(--tx);
}
.demo-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--green-text);
  background: var(--chip);
  border-radius: 999px;
  padding: 3px 10px;
}
.demo-desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--tx3);
  margin: 10px 0 0;
}
.demo-desc strong { color: var(--tx); }
.demo-caption {
  padding: 16px 20px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--tx3);
}
.demo-caption strong { color: var(--tx); }

/* Pulse radar */
.radar-demo {
  position: relative;
  width: 100px;
  height: 100px;
  display: grid;
  place-items: center;
}
.radar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid #2FB57E;
  animation: ping 2.2s cubic-bezier(0, 0, 0.2, 1) infinite;
}
.radar-ring.delay { animation-delay: 0.7s; }

/* ============ 08 Interactive demos ============ */
.demo-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  padding: 14px 20px;
  border-radius: 12px;
  transition: background 0.25s, transform 0.15s;
}
.demo-nav:hover { background: #fff; }
.demo-nav:active { transform: scale(0.96); }
.demo-nav-mark { transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1); }
.demo-nav:hover .demo-nav-mark { transform: rotate(-25deg); }
.demo-nav-word {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.03em;
  color: #131B15;
}

.demo-tile {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: rgba(244, 246, 241, 0.06);
  border: 1px solid rgba(244, 246, 241, 0.12);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.demo-tile:hover {
  transform: translateY(-3px);
  background: rgba(244, 246, 241, 0.1);
  box-shadow: 0 14px 28px -12px rgba(47, 181, 126, 0.45);
}
.demo-tile:active {
  transform: translateY(0) scale(0.93);
  box-shadow: none;
}

.demo-mark-btn { cursor: pointer; }
.demo-mark-ring { transition: stroke 0.3s; }
.demo-mark-btn:hover .demo-mark-ring { stroke: #1E8A5E; }
.demo-mark-needle {
  transform-origin: 32px 32px;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.demo-mark-btn:active .demo-mark-needle { transform: rotate(180deg); }

/* ============ 10 Downloads ============ */
.dl-card {
  background: var(--card);
  border: 1px solid var(--bd);
  border-radius: 16px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.dl-preview {
  height: 96px;
  border-radius: 10px;
  display: grid;
  place-items: center;
}
.dl-preview.forest-surface { border: none; }
.dl-preview img.rounded { border-radius: 12px; }
.dl-name {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--tx);
}
.dl-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--mut);
  margin-top: 3px;
}
.btn-row {
  display: flex;
  gap: 8px;
}
.btn-solid {
  display: block;
  text-align: center;
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
  background: var(--pine-deep);
  border-radius: 9px;
  padding: 10px 0;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
}
.btn-solid:hover { background: #125A3C; }
.btn-solid:active { transform: scale(0.97); }
.btn-solid.sm { font-size: 13px; padding: 9px 0; }
.btn-row .btn-solid, .btn-row .btn-ghost { flex: 1; }
.btn-row .flex-14 { flex: 1.4; }
.btn-ghost {
  display: block;
  text-align: center;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--tx);
  border: 1.5px solid var(--bd);
  border-radius: 9px;
  padding: 9px 0;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.15s;
}
.btn-ghost:hover { border-color: #1E8A5E; }
.btn-ghost:active { transform: scale(0.97); }
.btn-ghost.sm { font-size: 13px; }

/* ============ 11 Don'ts ============ */
.dont-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.dont-card {
  background: var(--card);
  border: 1px solid var(--bd);
  border-radius: 16px;
  overflow: hidden;
}
.dont-stage {
  height: 150px;
  background: #F7F7F2;
  border-bottom: 1px solid #ECEEE6;
  display: grid;
  place-items: center;
  position: relative;
}
.dont-stage.busy-bg {
  background: repeating-linear-gradient(-45deg, #1E8A5E, #1E8A5E 14px, #2FB57E 14px, #2FB57E 28px);
}
.dont-x {
  position: absolute;
  top: 12px;
  left: 14px;
  font-size: 18px;
  color: #C43C3C;
}
.dont-x.white { color: #fff; }
.dont-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
}
.dont-serif {
  font-family: 'Georgia', serif;
  font-style: italic;
  font-weight: 700;
  font-size: 30px;
  color: #131B15;
}
.dont-caption {
  padding: 14px 18px;
  font-size: 13px;
  color: var(--tx3);
  line-height: 1.5;
}

/* ============ 12 Typography + footer ============ */
.type-card {
  background: var(--card);
  border: 1px solid var(--bd);
  border-radius: 16px;
  padding: 32px;
}
.type-specimen {
  font-size: 44px;
  color: var(--tx);
}
.type-specimen.sora {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.type-specimen.instrument {
  font-family: 'Instrument Sans', sans-serif;
  font-weight: 500;
}
.type-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--mut);
  margin-top: 8px;
}
.type-sample {
  font-size: 17px;
  color: var(--tx2);
  margin-top: 20px;
  line-height: 1.5;
}
.type-sample.sora-sample { font-family: 'Sora', sans-serif; }

.footer-band {
  margin-top: 48px;
  background: #0E1F17;
  border-radius: 16px;
  padding: clamp(24px, 5vw, 40px) clamp(24px, 5vw, 48px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.footer-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-wordmark {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.03em;
  color: #F4F6F1;
}
.footer-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: #788D80;
}