@charset "UTF-8";
:root {
  --ink: #0a0e14;
  --ink-void: #05080c;
  --ink-soft: #3a4556;
  --paper: #e8eef5;
  --paper-deep: #d4dee9;
  --line: rgba(10, 14, 20, 0.1);
  --line-strong: rgba(10, 14, 20, 0.2);
  --accent: #c8ff2d;
  --accent-deep: #8fb800;
  --accent-bright: #e4ff6a;
  --signal: #0d8f7c;
  --signal-bright: #12c4aa;
  --panel: rgba(255, 255, 255, 0.72);
  --panel-solid: #f7fafc;
  --panel-glass: rgba(255, 255, 255, 0.82);
  --glow-lime: 0 0 28px rgba(200, 255, 45, 0.4);
  --glow-teal: 0 0 22px rgba(13, 143, 124, 0.35);
  --shadow-panel: 0 18px 50px rgba(10, 14, 20, 0.08);
  --font-display: "Syne", sans-serif;
  --font-body: "Outfit", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --radius: 0;
  --space: clamp(1rem, 2vw, 2rem);
  --max: 1180px;
  --site-header-height: 3.75rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-snap: cubic-bezier(0.34, 1.4, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.55;
  background: var(--paper);
  position: relative;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--signal);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.92em;
  letter-spacing: 0.02em;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 50% at 0% 0%, rgba(200, 255, 45, 0.42), transparent 58%), radial-gradient(ellipse 60% 45% at 100% 8%, rgba(13, 143, 124, 0.28), transparent 52%), radial-gradient(ellipse 50% 35% at 72% 92%, rgba(200, 255, 45, 0.16), transparent 62%), linear-gradient(168deg, #f6f9fc 0%, #e6edf5 38%, #d0dce8 100%);
}

.atmosphere::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at 30% 40%, rgba(200, 255, 45, 0.12), transparent 42%), radial-gradient(circle at 70% 60%, rgba(13, 143, 124, 0.1), transparent 40%);
  animation: atmosphere-drift 22s ease-in-out infinite alternate;
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 78%);
  opacity: 0.5;
}

.scanlines {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.04;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(10, 14, 20, 0.35) 2px, rgba(10, 14, 20, 0.35) 3px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px) saturate(1.2);
  background: rgba(238, 242, 246, 0.78);
  border-bottom: 1px solid var(--line-strong);
  box-shadow: 0 1px 0 rgba(200, 255, 45, 0.15);
}

.site-nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.9rem var(--space);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.site-nav__brand:hover {
  color: var(--signal);
}

.site-nav__mark {
  width: 0.7rem;
  height: 0.7rem;
  background: var(--accent);
  box-shadow: var(--glow-lime), 0 0 0 3px rgba(200, 255, 45, 0.2);
  animation: glow-pulse 3s ease-in-out infinite;
}

.site-nav__sub {
  margin-left: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  vertical-align: middle;
}

.site-nav__toggle {
  margin-left: auto;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid var(--line-strong);
  background: transparent;
  display: none;
  place-items: center;
  gap: 5px;
  flex-direction: column;
  padding: 0;
}

.site-nav__toggle span {
  display: block;
  width: 1rem;
  height: 1.5px;
  background: var(--ink);
}

/* Always show primary links on desktop. Bootstrap's .collapse defaults to
   display:none until .show — and the hamburger is hidden above 640px, so
   without this override Home / Chords Helper never appear. */
.site-nav__collapse.collapse {
  display: block;
  height: auto;
  visibility: visible;
}

.site-nav__collapse {
  margin-left: auto;
}

.site-nav__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.25rem;
}

.site-nav__link {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.35rem 0;
  transition: color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--signal-bright));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.site-nav__link:hover,
.site-nav__link:focus-visible,
.site-nav__link.is-active {
  color: var(--ink);
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after,
.site-nav__link.is-active::after {
  transform: scaleX(1);
}

.site-main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--space) 5rem;
}

.site-footer {
  border-top: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(10px);
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem var(--space);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.site-footer__brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
}

.site-footer__tagline {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.site-footer__link {
  margin-left: auto;
  text-decoration: none;
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--site-header-height));
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  padding: clamp(2rem, 6vh, 4rem) 0;
}

.hero__eyebrow {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
  animation: rise-in 0.9s var(--ease) both;
}

.hero__brand {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.8rem, 7vw, 5.4rem);
  line-height: 0.92;
  letter-spacing: -0.05em;
  max-width: 10ch;
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink) 45%, var(--signal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: rise-in 0.9s var(--ease) 0.06s both;
}

.hero__headline {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  max-width: 20ch;
  color: var(--ink-soft);
  animation: rise-in 0.9s var(--ease) 0.12s both;
}

.hero__lede {
  margin: 0 0 1.25rem;
  max-width: 36ch;
  color: var(--ink-soft);
  animation: rise-in 0.9s var(--ease) 0.2s both;
}

.hero__features {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  animation: rise-in 0.9s var(--ease) 0.24s both;
}

.hero__feature {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--line-strong);
  background: var(--panel-glass);
  backdrop-filter: blur(8px);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px rgba(200, 255, 45, 0.08);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  animation: rise-in 0.9s var(--ease) 0.28s both;
}

.btn-primary-action {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.5rem;
  background: var(--ink);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  border: 1px solid var(--ink);
  overflow: hidden;
  box-shadow: var(--glow-lime), var(--shadow-panel);
  transition: transform 0.3s var(--ease-snap), background 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.btn-primary-action::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(200, 255, 45, 0.25) 50%, transparent 60%);
  transform: translateX(-120%);
  transition: transform 0.6s var(--ease);
}

.btn-primary-action:hover {
  background: var(--accent);
  color: var(--ink);
  transform: translateY(-3px);
  box-shadow: 0 0 40px rgba(200, 255, 45, 0.55), var(--shadow-panel);
}

.btn-primary-action:hover::before {
  transform: translateX(120%);
}

.btn-ghost-action {
  display: inline-flex;
  align-items: center;
  padding: 0.95rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  background: transparent;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.btn-ghost-action:hover {
  border-color: var(--signal);
  color: var(--signal);
  box-shadow: var(--glow-teal);
}

.hero__visual {
  min-height: min(58vh, 420px);
  animation: fade-scale 1s var(--ease) 0.15s both;
  perspective: 900px;
}

.signal-field {
  position: relative;
  height: 100%;
  min-height: 360px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.65), rgba(10, 14, 20, 0.04));
  overflow: hidden;
  box-shadow: var(--shadow-panel), inset 0 0 60px rgba(200, 255, 45, 0.06);
  transform-style: preserve-3d;
  transition: transform 0.4s var(--ease);
}

.signal-field::before,
.signal-field::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--accent-deep);
  border-style: solid;
  pointer-events: none;
  z-index: 2;
}

.signal-field::before {
  top: -1px;
  left: -1px;
  border-width: 2px 0 0 2px;
}

.signal-field::after {
  right: -1px;
  bottom: -1px;
  border-width: 0 2px 2px 0;
}

.signal-field__grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--line-strong) 1px, transparent 1px), linear-gradient(90deg, var(--line-strong) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.45;
}

.signal-field__wave {
  position: absolute;
  inset: 12% 10% 18%;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  align-items: end;
  gap: 0.45rem;
}

.signal-field__wave span {
  display: block;
  width: 100%;
  height: calc(18% + var(--i) * 6%);
  background: linear-gradient(180deg, var(--accent-bright) 0%, var(--accent) 35%, var(--signal) 100%);
  transform-origin: bottom;
  box-shadow: 0 0 12px rgba(200, 255, 45, 0.35);
  animation: pulse-bar 2.8s var(--ease) infinite;
  animation-delay: calc(var(--i) * 0.08s);
}

.signal-field__orbit {
  position: absolute;
  width: 42%;
  aspect-ratio: 1;
  right: -8%;
  top: -12%;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  animation: slow-spin 28s linear infinite;
}

.signal-field__orbit::before {
  content: "";
  position: absolute;
  width: 0.7rem;
  height: 0.7rem;
  background: var(--ink);
  top: 50%;
  left: 0;
  transform: translate(-50%, -50%);
}

/* Tool / Chords page */
.tool {
  padding: clamp(1.75rem, 4vh, 3rem) 0 2rem;
}

.tool__header {
  margin-bottom: 1.75rem;
  max-width: 40rem;
}

.tool__eyebrow {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--signal);
}

.tool__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  letter-spacing: -0.04em;
  line-height: 0.95;
  background: linear-gradient(120deg, var(--ink) 30%, var(--signal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tool__lede {
  margin: 0;
  color: var(--ink-soft);
  max-width: 42ch;
}

/* Sticky Root + Scale + section nav — pickers stay usable while reading Scales/Chords */
.studio-chrome {
  position: sticky;
  top: var(--site-header-height);
  z-index: 16;
  margin: 0 0 1.75rem;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--line-strong);
  background: rgba(247, 250, 252, 0.88);
  backdrop-filter: blur(14px) saturate(1.15);
  box-shadow: var(--shadow-panel), inset 0 0 0 1px rgba(200, 255, 45, 0.14);
}

.studio-chrome::before,
.studio-chrome::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--accent-deep);
  border-style: solid;
  pointer-events: none;
}

.studio-chrome::before {
  top: -1px;
  left: -1px;
  border-width: 2px 0 0 2px;
}

.studio-chrome::after {
  right: -1px;
  bottom: -1px;
  border-width: 0 2px 2px 0;
}

.studio-chrome--chords {
  box-shadow: var(--shadow-panel), inset 0 0 0 1px rgba(200, 255, 45, 0.14), inset 0 -3px 0 rgba(200, 255, 45, 0.35);
}

.studio-chrome--progressions {
  box-shadow: var(--shadow-panel), inset 0 0 0 1px rgba(13, 143, 124, 0.16), inset 0 -3px 0 rgba(13, 143, 124, 0.4);
}

.studio-chrome__top {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 0.65rem;
}

.studio-chrome .tool__controls {
  flex: 1;
  min-width: min(100%, 22rem);
  margin-bottom: 0;
}

.tool__controls-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 0.35rem;
}

.studio-chrome__key {
  margin: 0;
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  font-size: 0.82rem;
}

.studio-chrome__key-label {
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.68rem;
}

.studio-chrome__key-value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.04em;
}

.studio-rail {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.25rem;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.45);
}

.studio-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  border: 1px solid transparent;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.studio-rail__code {
  font-size: 0.62rem;
  color: var(--signal);
  opacity: 0.85;
}

.studio-rail__link:hover,
.studio-rail__link:focus-visible {
  color: var(--ink);
  border-color: var(--line-strong);
}

.studio-rail__link.is-active {
  color: var(--ink);
  background: rgba(200, 255, 45, 0.28);
  border-color: var(--ink);
  box-shadow: var(--glow-lime);
}

.tool__module {
  display: inline-block;
  margin-right: 0.45rem;
  padding: 0.18rem 0.42rem;
  border: 1px solid var(--line-strong);
  background: rgba(200, 255, 45, 0.14);
  color: var(--ink);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}

.tool--progressions .tool__module {
  background: rgba(13, 143, 124, 0.12);
}

.studio-bridge {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-top: 2.5rem;
  padding: 1.35rem 1.25rem;
  border: 1px dashed var(--line-strong);
  background: linear-gradient(125deg, rgba(200, 255, 45, 0.14), rgba(255, 255, 255, 0.55) 48%, rgba(13, 143, 124, 0.1));
  box-shadow: var(--shadow-panel);
  position: relative;
  overflow: hidden;
}

.studio-bridge::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent, transparent 3px, rgba(10, 14, 20, 0.03) 3px, rgba(10, 14, 20, 0.03) 4px);
  pointer-events: none;
}

.studio-bridge--reverse {
  background: linear-gradient(125deg, rgba(13, 143, 124, 0.12), rgba(255, 255, 255, 0.55) 48%, rgba(200, 255, 45, 0.1));
}

.studio-bridge__copy {
  position: relative;
  max-width: 36rem;
}

.studio-bridge__eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.studio-bridge__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  letter-spacing: -0.03em;
}

.studio-bridge__lede {
  margin: 0;
  color: var(--ink-soft);
  max-width: 42ch;
}

.home-studios {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: -1.5rem;
  padding-bottom: 3rem;
}

.home-studio {
  position: relative;
  padding: 1.5rem 1.35rem;
  border: 1px solid var(--line-strong);
  background: var(--panel-glass);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-panel);
  transition: transform 0.35s var(--ease-snap), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
  overflow: hidden;
}

.home-studio::before,
.home-studio::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--accent-deep);
  border-style: solid;
  pointer-events: none;
}

.home-studio::before {
  top: -1px;
  left: -1px;
  border-width: 2px 0 0 2px;
}

.home-studio::after {
  right: -1px;
  bottom: -1px;
  border-width: 0 2px 2px 0;
}

.home-studio--progressions::before,
.home-studio--progressions::after {
  border-color: var(--signal);
}

.home-studio:hover {
  transform: translateY(-4px);
}

.home-studio--chords:hover {
  border-color: rgba(200, 255, 45, 0.45);
  box-shadow: var(--shadow-panel), var(--glow-lime);
}

.home-studio--progressions:hover {
  border-color: rgba(13, 143, 124, 0.45);
  box-shadow: var(--shadow-panel), var(--glow-teal);
}

.home-studio__code {
  margin: 0 0 0.65rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.home-studio__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  letter-spacing: -0.03em;
}

.home-studio__lede {
  margin: 0 0 1rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
  max-width: 34ch;
}

.home-studio__link {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  padding-bottom: 0.15rem;
  box-shadow: inset 0 -2px 0 var(--accent-deep);
  transition: color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.home-studio__link:hover,
.home-studio__link:focus-visible {
  color: var(--signal);
  box-shadow: inset 0 -2px 0 var(--signal-bright);
}

body.studio-page--chords .atmosphere {
  background: radial-gradient(ellipse 85% 55% at 0% 0%, rgba(200, 255, 45, 0.48), transparent 58%), radial-gradient(ellipse 55% 40% at 100% 12%, rgba(13, 143, 124, 0.22), transparent 52%), radial-gradient(ellipse 50% 35% at 72% 92%, rgba(200, 255, 45, 0.18), transparent 62%), linear-gradient(168deg, #f6f9fc 0%, #e6edf5 38%, #d0dce8 100%);
}

body.studio-page--progressions .atmosphere {
  background: radial-gradient(ellipse 75% 50% at 100% 0%, rgba(13, 143, 124, 0.38), transparent 55%), radial-gradient(ellipse 60% 45% at 0% 15%, rgba(200, 255, 45, 0.28), transparent 52%), radial-gradient(ellipse 50% 35% at 50% 100%, rgba(13, 143, 124, 0.14), transparent 62%), linear-gradient(168deg, #f3f8fa 0%, #e4edf3 38%, #cdd9e6 100%);
}

.tool__controls {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 0 0 0.65rem;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.tool__controls-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.tool__controls-fields {
  display: grid;
  grid-template-columns: minmax(0, 140px) minmax(0, 1fr);
  gap: 0.85rem;
}

.control--scale {
  min-width: 0;
}

.control__label {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.control__select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line-strong);
  background: var(--panel-glass) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2310141c' d='M1 1l5 5 5-5'/%3E%3C/svg%3E") no-repeat right 0.85rem center;
  color: var(--ink);
  padding: 0.7rem 2.2rem 0.7rem 0.85rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.control__select:hover {
  border-color: var(--signal);
}

.control__select:focus {
  outline: 2px solid var(--accent-deep);
  outline-offset: 1px;
  box-shadow: var(--glow-teal);
}

.scale-map {
  position: relative;
  padding: 1.35rem 1.25rem;
  border: 1px solid var(--line-strong);
  background: linear-gradient(125deg, rgba(200, 255, 45, 0.22), rgba(255, 255, 255, 0.75) 42%, rgba(255, 255, 255, 0.55));
  margin-bottom: 0;
  box-shadow: var(--shadow-panel);
  transition: box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}

.scale-map:hover {
  box-shadow: var(--shadow-panel), var(--glow-lime);
  transform: translateY(-2px);
}

.scale-map__heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem 1.25rem;
  margin-bottom: 1rem;
}

.scale-map__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.03em;
}

.scale-map__type {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.scale-map__notes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.note-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.4rem;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: inset 0 0 12px rgba(200, 255, 45, 0.15);
  transition: transform 0.25s var(--ease-snap), box-shadow 0.25s var(--ease);
}

.note-chip:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-lime), inset 0 0 16px rgba(200, 255, 45, 0.25);
}

.scale-map__meta {
  margin: 0;
}

.scale-map__meta dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.scale-map__meta dd {
  margin: 0.2rem 0 0;
}

.section-nav {
  position: static;
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  margin: 0;
  padding: 0.35rem 0 0;
  border: 0;
  border-top: 1px solid var(--line);
  background: transparent;
  backdrop-filter: none;
  scrollbar-width: thin;
}

.section-nav__link {
  flex: 0 0 auto;
  padding: 0.55rem 0.95rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  border: 1px solid transparent;
}

.section-nav__link:hover,
.section-nav__link:focus-visible {
  color: var(--ink);
  border-color: var(--line-strong);
}

.section-nav__link.is-active {
  color: var(--ink);
  background: rgba(200, 255, 45, 0.32);
  border-color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--accent), var(--glow-lime);
}

.studio-section__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.03em;
  position: relative;
  display: inline-block;
}

.studio-section__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 2.5rem;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--signal-bright));
  box-shadow: var(--glow-lime);
}

.studio-section {
  scroll-margin-top: 11rem;
  margin-bottom: 2.75rem;
}

.studio-section__header {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  max-width: none;
}

.studio-section__index {
  margin: 0.2rem 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--signal);
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--line-strong);
  background: rgba(13, 143, 124, 0.08);
  flex-shrink: 0;
  line-height: 1;
}

.studio-section__lede {
  margin: 0;
  color: var(--ink-soft);
}

.scale-map__formula {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
  align-items: baseline;
  margin: 0 0 1.1rem;
}

.scale-map__formula-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.chord-list,
.progression-list,
.progression-deck {
  display: grid;
  gap: 1rem;
}

.progression-deck {
  gap: 1.15rem;
}

.tool--progressions .progression-card {
  border-left: 3px solid rgba(13, 143, 124, 0.45);
}

.tool--progressions .progression-card__roman {
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  color: var(--signal);
}

.tool--progressions .progression-card__sequence {
  position: relative;
}

.tool--progressions .progression-card__step {
  border-left: 2px solid rgba(200, 255, 45, 0.5);
}

.chord-card,
.progression-card {
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--panel-glass);
  backdrop-filter: blur(8px);
  padding: 1rem 1rem 1.1rem;
  box-shadow: var(--shadow-panel);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}

.chord-card:hover,
.progression-card:hover {
  transform: translateY(-3px);
  border-color: rgba(13, 143, 124, 0.35);
  box-shadow: var(--shadow-panel), var(--glow-teal);
}

.chord-card__header,
.progression-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.chord-card__title,
.progression-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.chord-card__degrees,
.progression-card__count {
  margin: 0.25rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.chord-card__preview {
  flex: 0 0 64px;
  width: 64px;
  height: 76px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--ink);
  border: 1px solid var(--ink);
}

.chord-card__preview svg {
  max-width: 100%;
  max-height: 100%;
  display: block;
}

.chord-card__meta {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.65rem 0.85rem;
  margin: 0 0 1rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.chord-card__meta dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.chord-card__meta dd {
  margin: 0.15rem 0 0;
  font-weight: 500;
}

.notation-tabs {
  display: grid;
  gap: 0.75rem;
}

.notation-tabs__list {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  padding-bottom: 0.15rem;
  scrollbar-width: thin;
}

.notation-tabs__tab {
  flex: 0 0 auto;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
}

.notation-tabs__tab:hover,
.notation-tabs__tab:focus-visible {
  color: var(--ink);
  border-color: var(--ink);
}

.notation-tabs__tab.is-active {
  color: var(--ink);
  background: rgba(200, 255, 45, 0.28);
  border-color: var(--ink);
}

.notation-tabs__panel {
  border: 1px solid var(--line-strong);
  background: var(--panel-solid);
  padding: 0.85rem;
  min-height: 160px;
}

.chord-notation__canvas {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 130px;
  width: 100%;
}

.chord-notation__canvas svg {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.chord-notation__diagram {
  min-height: 160px;
}

.progression-card__toggle {
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  white-space: nowrap;
}

.progression-card__toggle:hover,
.progression-card__toggle:focus-visible,
.progression-card__toggle[aria-expanded=true] {
  background: rgba(200, 255, 45, 0.22);
  border-color: var(--ink);
}

.progression-card__roman {
  margin: 0 0 0.35rem;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.progression-card__heading {
  flex: 1;
  min-width: 0;
}

.progression-card__in-key {
  margin: 0.2rem 0 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.progression-card__example {
  margin: 0.55rem 0 0;
  font-size: 0.92rem;
  color: var(--ink);
  max-width: 52ch;
}

.progression-card__example-note {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-style: italic;
}

.progression-card__theory {
  margin: 0 0 1rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.progression-card__meta-line {
  margin: 0 0 0.55rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
  max-width: 62ch;
}

.progression-card__meta-line:last-of-type {
  margin-bottom: 0;
}

.progression-card__meta-label {
  display: block;
  margin-bottom: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
}

.progression-card__learner {
  margin: 0.75rem 0 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--ink);
  max-width: 58ch;
}

.progression-card__bars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.progression-card__bars li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  font-size: 0.88rem;
}

.progression-card__bar-label {
  flex: 0 0 5.5rem;
  color: var(--ink-soft);
}

.progression-card--guide {
  border-style: dashed;
}

.progression-card__jump {
  margin: 0 0 0.75rem;
}

.progression-card__jump-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  box-shadow: inset 0 -1px 0 var(--accent-deep);
}

.progression-card__jump-link:hover,
.progression-card__jump-link:focus-visible {
  color: var(--ink);
  outline: none;
  box-shadow: inset 0 -2px 0 var(--accent-deep);
}

.zone-label {
  margin: 0 0 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.progression-card__sequence {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.55rem;
}

.progression-card__step {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.55);
  padding: 0.7rem 0.75rem;
}

.progression-card__step-name {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.progression-card__step-degrees {
  display: block;
  margin-top: 0.2rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.progression-card__body {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.progression-card__body .chord-list {
  gap: 0.85rem;
}

.legal {
  padding: 3rem 0;
  max-width: 40rem;
}

.legal__title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  letter-spacing: -0.04em;
  margin: 0 0 1rem;
}

.legal__lede {
  color: var(--ink-soft);
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes fade-scale {
  from {
    opacity: 0;
    transform: scale(0.97);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes pulse-bar {
  0%, 100% {
    transform: scaleY(0.72);
  }
  50% {
    transform: scaleY(1);
  }
}
@keyframes slow-spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes atmosphere-drift {
  from {
    transform: translate(0, 0) scale(1);
  }
  to {
    transform: translate(3%, -2%) scale(1.05);
  }
}
@keyframes glow-pulse {
  0%, 100% {
    box-shadow: var(--glow-lime), 0 0 0 3px rgba(200, 255, 45, 0.2);
  }
  50% {
    box-shadow: 0 0 36px rgba(200, 255, 45, 0.55), 0 0 0 4px rgba(200, 255, 45, 0.28);
  }
}
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .hero__visual {
    min-height: 280px;
    order: -1;
  }
  .signal-field {
    min-height: 260px;
  }
  .home-studios {
    grid-template-columns: 1fr;
    margin-top: 0;
  }
  .studio-chrome__top {
    flex-direction: column;
    align-items: stretch;
  }
  .studio-rail {
    width: 100%;
    justify-content: stretch;
  }
  .studio-rail__link {
    flex: 1;
    justify-content: center;
  }
  .tool__controls-fields {
    grid-template-columns: 1fr;
  }
  .chord-card__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .progression-card__header {
    flex-wrap: wrap;
  }
}
@media (max-width: 640px) {
  .site-nav__toggle {
    display: inline-grid;
  }
  /* Mobile: restore Bootstrap collapse (hidden until hamburger opens) */
  .site-nav__collapse.collapse:not(.show) {
    display: none;
  }
  .site-nav__collapse {
    width: 100%;
    margin-left: 0;
  }
  .site-nav {
    flex-wrap: wrap;
  }
  .site-nav__links {
    flex-direction: column;
    padding: 0.75rem 0 0.25rem;
    gap: 0.65rem;
  }
  .site-footer__link {
    margin-left: 0;
  }
  .studio-chrome {
    top: 0; /* full-width sticky when header wraps */
  }
  .studio-section {
    scroll-margin-top: 12.5rem;
  }
  .chord-card__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .chord-card__preview {
    width: 56px;
    height: 66px;
    flex-basis: 56px;
  }
  .progression-card__sequence {
    grid-template-columns: 1fr;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/*# sourceMappingURL=site.css.map */