/* ─────────────────────────────────────────────────────────────
   Loop · loopharness.com
   Static, no build step. All design tokens live as custom props.
   ───────────────────────────────────────────────────────────── */

:root {
  --ink:        #0a0a0a;
  --paper:      #f5f1e8;
  --paper-ink:  #1a1814;
  --paper-mute: #6b6557;
  --paper-line: rgba(20, 18, 14, 0.08);
  --off:        #e9e4d8;
  --mute:       #9a9488;
  --accent:     #d9b25a;

  --sans: 'Inter Tight', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --serif: 'Instrument Serif', ui-serif, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--paper-ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
em { font-style: italic; }

/* ────────── eyebrow (label) ────────── */

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  line-height: 1.8;
}
.eyebrow--paper { color: var(--paper-mute); margin-bottom: 16px; }
.eyebrow--dark  { color: rgba(233, 228, 216, 0.5); margin-bottom: 14px; }
.eyebrow--hero  {
  color: rgba(233, 228, 216, 0.55);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.eyebrow--hero span { white-space: nowrap; }

/* ────────── nav ────────── */

.nav {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 56px;
  font-size: 14px;
  letter-spacing: -0.005em;
}
.nav--dark { color: var(--off); }
.nav__brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 500;
}
.nav__brand-orb {
  display: block;
  width: 22px; height: 22px;
}
.nav__links {
  display: flex; gap: 28px; opacity: 0.78;
}
.nav__ctas {
  display: flex; align-items: center; gap: 6px;
}
.nav__github, .nav__testflight {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  border-radius: 999px;
  font-weight: 500;
}
.nav__github     { opacity: 0.78; }
.nav__testflight { border: 1px solid rgba(233, 228, 216, 0.22); }

/* ────────── hero ────────── */

.hero {
  position: relative;
  background: var(--ink);
  color: var(--off);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: clamp(80px, 11vh, 110px) 56px clamp(28px, 4vh, 48px);
}
.hero__vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(70% 50% at 50% 50%, rgba(217, 178, 90, 0.04), transparent 70%);
}
.hero__stack {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  z-index: 1;
  gap: clamp(14px, 2vh, 22px);
}
.hero__orb {
  display: block;
  width: clamp(160px, 26vh, 280px);
  height: clamp(160px, 26vh, 280px);
}
.hero__headline {
  font-size: clamp(40px, 5.4vw, 72px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin: 0;
  max-width: 960px;
  text-wrap: balance;
}
.hero__lede {
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.55;
  color: rgba(233, 228, 216, 0.65);
  margin: 0;
  max-width: 600px;
  text-wrap: pretty;
}
.hero__ctas {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

/* ────────── buttons ────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: transform 0.15s ease, background 0.15s ease, opacity 0.15s ease;
}
.btn:hover  { transform: translateY(-1px); }
.btn--primary { background: var(--off);          color: var(--ink); }
.btn--ghost   { background: transparent;        color: var(--off); border-color: rgba(233, 228, 216, 0.25); }
.btn--dark    { background: var(--ink);          color: var(--off); padding: 14px 22px; font-size: 14px; }
.btn--outline { background: transparent;        color: var(--paper-ink); border-color: var(--paper-ink); padding: 14px 22px; font-size: 14px; }

/* ────────── hold-to-talk ────────── */

.hold-strip {
  align-self: center;
  margin-top: clamp(28px, 5vh, 64px);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid rgba(233, 228, 216, 0.12);
  border-radius: 999px;
  background: rgba(20, 20, 20, 0.6);
  backdrop-filter: blur(8px);
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(233, 228, 216, 0.7);
  width: min(760px, calc(100% - 112px));
  user-select: none;
  cursor: pointer;
  position: relative;
  z-index: 1;
}
.hold-strip__key {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(233, 228, 216, 0.25);
  font-size: 10px;
  letter-spacing: 0.1em;
  transition: background 0.15s, color 0.15s;
}
.hold-strip.is-holding .hold-strip__key {
  background: var(--accent);
  color: var(--ink);
}
/* Voice "lines" — an audio waveform that mirrors the app's recording state.
   Collapsed to zero width at rest; springs open the moment the hold starts
   (is-recording) and then folds away once the orb takes over the talking
   state (is-talking). Bars are built in site.js so delays can be staggered. */
.hold-strip__wave {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 18px;
  width: 0;
  overflow: hidden;
  opacity: 0;
  flex-shrink: 0;
  transition: width 0.28s ease, opacity 0.28s ease;
}
.hold-strip.is-recording .hold-strip__wave {
  width: 78px;
  opacity: 1;
}
.hold-strip.is-talking .hold-strip__wave {
  width: 0;
  opacity: 0;
}
.hold-strip__wave span {
  width: 2px;
  height: 100%;
  border-radius: 1px;
  background: var(--off);
  transform: scaleY(0.22);
  animation: hold-wave 0.9s ease-in-out infinite;
}
@keyframes hold-wave {
  0%, 100% { transform: scaleY(0.2); }
  50%      { transform: scaleY(1); }
}
.hold-strip__txt {
  flex: 1;
  min-width: 0;
  color: rgba(233, 228, 216, 0.45);
  font-size: 13px;
  text-align: left;
  line-height: 1.5;
  white-space: normal;       /* wrap the transcript instead of clipping it */
  overflow-wrap: break-word;
}
.hold-strip.is-holding .hold-strip__txt { color: var(--off); }
.hold-strip__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #444;
  transition: background 0.2s;
  flex-shrink: 0;
}
.hold-strip.is-holding .hold-strip__dot { background: #ff5f57; }
.hold-strip.is-talking .hold-strip__dot {
  background: rgb(51, 199, 255); /* systemCyan — matches the orb's talking state */
  box-shadow: 0 0 8px rgba(51, 199, 255, 0.7);
}

/* ────────── surfaces ────────── */

.surfaces {
  background: var(--paper);
  color: var(--paper-ink);
  padding: 120px 80px 140px;
}
.surfaces__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}
.surfaces__title {
  font-size: 56px;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0;
  line-height: 1.05;
  max-width: 720px;
}
.tabs {
  display: flex;
  gap: 4px;
  border: 1px solid var(--paper-line);
  padding: 4px;
  border-radius: 999px;
  flex-shrink: 0;
}
.tab {
  padding: 8px 18px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--paper-ink);
  font-size: 13px;
  font-weight: 500;
}
.tab.is-active {
  background: var(--ink);
  color: var(--off);
}

.surfaces__stage {
  background: linear-gradient(180deg, #232019 0%, #1a1814 100%);
  border-radius: 24px;
  padding: 80px;
  min-height: 580px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 80px;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.surfaces__copy {
  color: var(--off);
  max-width: 380px;
}
.surfaces__copy > div { display: none; }
.surfaces__copy > div.is-active { display: block; }
.surfaces__copy h3 {
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.025em;
  margin: 0;
  line-height: 1.1;
}
.surfaces__copy p {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(233, 228, 216, 0.65);
  margin-top: 18px;
}
.surfaces__device {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 420px;
}
/* High-specificity hide so the device-specific `display: flex`/`block`
   rules below don't override us when a frame isn't the active tab. */
.surfaces__device > [data-surface]:not(.is-active) { display: none; }

/* iPhone frame */
.phone {
  width: 300px;
  height: 648px;
  background: #0a0a0a;
  border: 1px solid #1c1c1c;
  border-radius: 42px;
  padding: 8px;
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.04);
}
.phone__screen {
  width: 100%; height: 100%;
  background: #000;
  border-radius: 34px;
  overflow: hidden;
  position: relative;
  color: #eaeaea;
  display: flex;
  flex-direction: column;
  padding-top: 44px;
}
.phone__notch {
  position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  width: 96px; height: 22px;
  background: #000;
  border-radius: 14px;
  z-index: 5;
}
.phone__status {
  position: absolute; top: 12px; left: 18px; right: 18px;
  display: flex; justify-content: space-between;
  font-size: 11px; font-weight: 500; color: #fff;
  font-variant-numeric: tabular-nums;
  z-index: 6;
}
.phone__chrome {
  display: flex; justify-content: space-between;
  padding: 0 14px 8px;
  align-items: center;
}
.phone__menu {
  width: 30px; height: 30px; border-radius: 50%;
  background: #1a1a1a;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
}
.phone__topright { display: flex; gap: 6px; }
.phone__settings {
  width: 56px; height: 28px;
  background: #1a1a1a; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  font-size: 10px; color: #888;
}
.phone__compose {
  width: 30px; height: 30px; border-radius: 50%;
  background: #1a1a1a;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
}
.phone__orb {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
}
.phone__orb canvas { width: 120px; height: 120px; display: block; }
.phone__input {
  padding: 0 12px 14px;
  display: flex; gap: 8px; align-items: center;
}
.phone__mic {
  width: 32px; height: 32px; border-radius: 50%;
  background: #1a1a1a;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
}
.phone__field {
  flex: 1; height: 32px; background: #1a1a1a;
  border-radius: 18px;
  display: flex; align-items: center; padding: 0 14px;
  font-size: 12px; color: #666;
  justify-content: space-between;
}
.phone__attach { opacity: 0.6; }

/* Mac window */
.mac {
  width: 620px; height: 420px;
  background: #111;
  border: 1px solid #222;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.03);
  display: flex; flex-direction: column;
}
.mac__titlebar {
  height: 32px;
  background: linear-gradient(180deg, #1a1a1a, #131313);
  border-bottom: 1px solid #222;
  display: flex; align-items: center;
  padding: 0 12px; gap: 8px;
  font-size: 12px; color: #888;
}
.mac__dot { width: 12px; height: 12px; border-radius: 50%; }
.mac__dot--red    { background: #ff5f57; }
.mac__dot--yellow { background: #febc2e; }
.mac__dot--green  { background: #28c840; }
.mac__title {
  margin-left: auto; margin-right: auto;
  transform: translateX(-26px);
}
.mac__body {
  flex: 1; display: flex;
  color: #eaeaea;
}
.mac__sidebar {
  width: 180px;
  border-right: 1px solid #1a1a1a;
  padding: 14px 12px;
  background: #0c0c0c;
  font-size: 12px;
}
.mac__group {
  color: #666; font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  margin: 6px 0 10px;
}
.mac__item {
  padding: 8px 10px;
  color: #888;
}
.mac__item.is-active {
  color: #eaeaea;
  background: #1a1a1a;
  border-radius: 6px;
  margin-bottom: 2px;
}
.mac__chat {
  flex: 1; padding: 24px;
  display: flex; flex-direction: column; gap: 16px;
}
.mac__bubble {
  font-size: 13px;
  border-radius: 12px;
  max-width: 380px;
  line-height: 1.5;
}
.mac__bubble--user {
  background: #1a1a1a;
  padding: 12px 14px;
  align-self: flex-end;
}
.mac__bubble--assistant {
  display: flex; gap: 10px; align-items: flex-start;
  background: transparent;
  color: #cfcabd;
}
.mac__assistant-orb { width: 28px; height: 28px; display: block; }
.mac__hint {
  margin-top: auto;
  display: flex; align-items: center; gap: 10px;
  background: #1a1a1a;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 12px; color: #888;
}

/* Vision scene */
.vision {
  width: 520px; height: 360px;
  background: radial-gradient(120% 90% at 50% 60%, #1c1d22 0%, #08090b 60%, #000 100%);
  border-radius: 18px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 0 80px rgba(0, 0, 0, 0.6);
}
.vision::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 40% at 20% 20%, rgba(255, 210, 150, 0.04), transparent 60%),
    radial-gradient(50% 40% at 85% 80%, rgba(150, 180, 255, 0.04), transparent 60%);
  pointer-events: none;
}
.vision__orb {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.vision__orb canvas { width: 200px; height: 200px; display: block; }
.vision__label {
  position: absolute; bottom: 18px; left: 0; right: 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: 0.18em;
}

/* helpers */
.dot { display: inline-block; }
.dot--amber { color: var(--accent); }
.hl { color: var(--accent); }

/* ────────── skills ────────── */

.skills {
  background: var(--paper);
  color: var(--paper-ink);
  padding: 100px 80px 140px;
}
.skills__head { margin-bottom: 60px; }
.skills__head h2 {
  font-size: 56px;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0;
  line-height: 1.05;
  max-width: 820px;
}
.skills__head p {
  font-size: 17px;
  line-height: 1.6;
  color: var(--paper-mute);
  margin-top: 20px;
  max-width: 580px;
}
.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--paper-line);
}
.skill {
  padding: 28px 24px;
  border-right: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
  min-height: 130px;
}
.skill:nth-child(4n) { border-right: none; }
.skill__mark {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 2px;
  display: inline-block;
  margin-right: 10px;
  vertical-align: middle;
}
.skill__name {
  font-size: 15px; font-weight: 500;
  vertical-align: middle;
}
.skill__desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--paper-mute);
  margin-top: 10px;
}
.skills__foot {
  margin-top: 24px;
  font-size: 13px;
  color: var(--paper-mute);
  font-family: var(--mono);
}

/* ────────── memory ────────── */

.memory {
  background: var(--ink);
  color: var(--off);
  padding: 120px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.memory__copy h2 {
  font-size: 52px;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0;
  line-height: 1.05;
}
.memory__copy p {
  font-size: 17px;
  line-height: 1.6;
  color: rgba(233, 228, 216, 0.65);
  margin-top: 22px;
  max-width: 480px;
}
.memory__aside {
  font-size: 13px !important;
  color: rgba(233, 228, 216, 0.45) !important;
  font-style: italic;
}
.memory__file {
  background: #0f0f0f;
  border: 1px solid #1c1c1c;
  border-radius: 12px;
  padding: 24px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: #cfcabd;
}
.memory__path {
  color: #666;
  margin-bottom: 14px;
  font-size: 11px;
  letter-spacing: 0.12em;
}
.md-h    { color: var(--accent); }
.md-h2   { margin-top: 12px; }
.md-line { color: #9a9488; }
.memory__stamp {
  margin-top: 14px;
  color: #666;
}

/* ────────── oss ────────── */

.oss {
  background: var(--paper);
  color: var(--paper-ink);
  padding: 120px 80px;
}
.oss__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: flex-start;
}
.oss__copy h2 {
  font-size: 56px;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0;
  line-height: 1.05;
  max-width: 600px;
}
.oss__copy h2 .muted { color: var(--paper-mute); }
.oss__copy p {
  font-size: 17px;
  line-height: 1.6;
  color: var(--paper-mute);
  margin-top: 28px;
  max-width: 520px;
}
.oss__copy strong { color: var(--paper-ink); }
.oss__ctas {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.repo {
  background: var(--ink);
  color: var(--off);
  border-radius: 14px;
  padding: 28px;
  font-family: var(--mono);
  font-size: 12.5px;
}
.repo__head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px;
  font-size: 13px;
}
.repo__name {
  display: flex; align-items: center; gap: 10px;
  font-weight: 500;
}
.repo__icon {
  width: 20px; height: 20px; border-radius: 4px;
  background: #1a1a1a;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px;
}
.repo__license {
  color: var(--mute);
  font-size: 11px;
  padding: 4px 10px;
  border: 1px solid #1c1c1c;
  border-radius: 999px;
}
.repo__desc {
  color: var(--mute);
  font-size: 12px;
  line-height: 1.6;
  padding-bottom: 18px;
  border-bottom: 1px solid #1c1c1c;
}
.repo__tree {
  margin-top: 16px;
  color: #cfcabd;
  font-size: 11.5px;
}
.repo__tree > div {
  display: flex; justify-content: space-between;
  padding: 5px 0;
}
.repo__tree > div > span:last-child { color: #666; }
.repo__cmd {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #1c1c1c;
  color: #666;
  font-size: 11px;
}

/* ────────── footer ────────── */

.foot {
  background: var(--ink);
  color: rgba(233, 228, 216, 0.65);
  padding: 60px 80px;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #1c1c1c;
  gap: 24px;
  flex-wrap: wrap;
}
.foot__left {
  display: flex; align-items: center; gap: 14px;
}
.foot__orb {
  display: block;
  width: 18px; height: 18px;
}
.foot__brand { color: var(--off); }
.foot__by    { color: #555; }
.foot__links { display: flex; gap: 24px; }

/* ────────── responsive ────────── */

@media (max-width: 1080px) {
  .surfaces, .skills, .oss, .memory, .foot { padding-left: 40px; padding-right: 40px; }
  .nav { padding-left: 32px; padding-right: 32px; }
  .hero { padding-left: 32px; padding-right: 32px; }
  .hold-strip { width: calc(100% - 64px); }
  .surfaces__stage { padding: 56px; gap: 56px; }
  .skills__grid { grid-template-columns: repeat(3, 1fr); }
  .skill:nth-child(4n) { border-right: 1px solid var(--paper-line); }
  .skill:nth-child(3n) { border-right: none; }
}

@media (max-width: 800px) {
  .nav__links { display: none; }
  .surfaces__title, .skills__head h2, .memory__copy h2, .oss__copy h2 { font-size: 40px; }
  .surfaces__stage { flex-direction: column; padding: 40px; gap: 40px; }
  .surfaces__copy { max-width: 100%; }
  .surfaces__device { min-width: 0; width: 100%; }
  .mac { width: 100%; max-width: 560px; height: 380px; }
  .vision { width: 100%; max-width: 480px; }
  .memory { grid-template-columns: 1fr; gap: 48px; padding: 80px 32px; }
  .oss__grid { grid-template-columns: 1fr; gap: 48px; }
  .skills__grid { grid-template-columns: repeat(2, 1fr); }
  .skill:nth-child(3n) { border-right: 1px solid var(--paper-line); }
  .skill:nth-child(2n) { border-right: none; }
  .foot { padding: 40px 32px; }
}

@media (max-width: 520px) {
  .nav__github { display: none; }
  .nav__brand span:not(.nav__brand-orb) { display: none; }
  .surfaces, .skills, .oss, .memory { padding-left: 24px; padding-right: 24px; }
  .hero { padding-left: 24px; padding-right: 24px; }
  .hold-strip { width: calc(100% - 48px); padding: 12px 14px; }
  .hold-strip__txt { font-size: 11px; }
  .hero__ctas { flex-direction: column; width: 100%; max-width: 320px; }
  .btn { width: 100%; }
  .surfaces__head { flex-direction: column; align-items: flex-start; }
  .surfaces__title, .skills__head h2, .memory__copy h2, .oss__copy h2 { font-size: 32px; }
  .surfaces__stage { padding: 28px; }
  .phone { width: 240px; height: 518px; }
  .skills__grid { grid-template-columns: 1fr; }
  .skill { border-right: none !important; }
  .foot { flex-direction: column; align-items: flex-start; }
  .foot__links { flex-wrap: wrap; }
}