/* Carrasco Practice Tools — practice-room chrome. Isolated; no shared pack styles. */

:root {
  --ink: #1c1814;
  --bg: #16130f;
  --bg-raised: #221d17;
  --bg-panel: #2a241c;
  --line: #3d3428;
  --cream: #f4ead8;
  --cream-dim: #cbbfa8;
  --brass: #d4a44a;
  --brass-deep: #b8862e;
  --lamp: #f0c56a;
  --moss: #7d9a6c;
  --warn: #e08a62;
  --focus: #f0c56a;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --font-ui: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --max: 72rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  padding-bottom: 4.75rem;
  font-family: var(--font-ui);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--cream);
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 480px at 12% -8%, rgba(240, 197, 106, 0.16), transparent 52%),
    radial-gradient(800px 420px at 100% 0%, rgba(125, 154, 108, 0.1), transparent 46%),
    url("../img/stave.svg");
  background-repeat: no-repeat, no-repeat, repeat;
  background-size: auto, auto, 240px 80px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: linear-gradient(180deg, rgba(22, 19, 15, 0.2), rgba(22, 19, 15, 0.55) 70%);
}

.site-header,
.site-footer,
main {
  position: relative;
  z-index: 1;
}

.session-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  background: rgba(22, 19, 15, 0.94);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.session-bar-inner {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem 1rem;
  padding: 0.45rem 0 calc(0.45rem + env(safe-area-inset-bottom));
}

.session-readout {
  margin: 0;
  font-variant-numeric: tabular-nums;
  color: var(--cream);
}

.session-unit {
  color: var(--cream-dim);
}

.session-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.session-actions .btn[aria-pressed="true"] {
  border-color: var(--brass);
  color: var(--lamp);
}

.session-actions select {
  max-width: 11rem;
  padding: 0.4rem 0.55rem;
  color: var(--cream);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
}

.session-more {
  position: relative;
}

.session-more summary {
  list-style: none;
  cursor: pointer;
  padding: 0.4rem 0.55rem;
  color: var(--cream-dim);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 0.95rem;
}

.session-more summary::-webkit-details-marker {
  display: none;
}

.session-more[open] summary {
  color: var(--lamp);
  border-color: var(--brass);
}

.session-more-panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.4rem);
  min-width: 11rem;
  padding: 0.4rem;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.session-more-panel a {
  display: block;
  padding: 0.4rem 0.55rem;
  color: var(--cream);
  text-decoration: none;
  border-radius: 8px;
}

.session-more-panel a:hover {
  color: var(--lamp);
  background: var(--bg-panel);
}

.tool-group {
  margin: 0 0 1.8rem;
}

.tool-group .section-title {
  margin-bottom: 0.85rem;
}

.page-head + .tool-group .section-title {
  margin-top: 0.35rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.loop-status {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.loop-status strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.65rem;
  color: var(--lamp);
}

.tuner-face {
  position: relative;
  height: 4.2rem;
  margin: 0.4rem 0 1.1rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}

.tuner-face::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 2px;
  background: var(--brass);
}

.tuner-needle {
  position: absolute;
  left: 50%;
  top: 0.55rem;
  width: 0.55rem;
  height: 3.1rem;
  margin-left: -0.275rem;
  border-radius: 999px;
  background: var(--lamp);
  transform: translateX(0);
  transition: transform 80ms linear;
}

.poly-vis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.poly-pip {
  display: grid;
  place-items: center;
  min-height: 5.5rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg-panel);
  font-family: var(--font-display);
  font-size: 2.4rem;
}

.poly-pip.on {
  background: var(--brass-deep);
  color: var(--ink);
}

.choice-box {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.75rem 0;
}

.table-wrap {
  overflow-x: auto;
}

a {
  color: var(--lamp);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 20;
  padding: 0.55rem 0.9rem;
  background: var(--lamp);
  color: var(--ink);
  font-weight: 650;
  border-radius: 8px;
}

.skip-link:focus {
  top: 0.75rem;
}

.site-header,
.site-footer {
  background: rgba(12, 10, 8, 0.78);
  border-color: var(--line);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.header-inner,
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.5rem;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--cream);
  text-decoration: none;
}

.brand-mark {
  width: 2.7rem;
  height: 2.7rem;
  flex: 0 0 auto;
  border-radius: 12px;
  box-shadow: 0 0 0 1px rgba(212, 164, 74, 0.35);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}

.brand-tag {
  display: block;
  margin-top: 0.1rem;
  color: var(--cream-dim);
  font-size: 0.78rem;
  font-weight: 500;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  display: inline-block;
  padding: 0.45rem 0.7rem;
  color: var(--cream);
  text-decoration: none;
  border-radius: 999px;
}

.nav-list a[aria-current="page"],
.nav-list a:hover {
  background: var(--bg-panel);
  color: var(--lamp);
}

main {
  padding: 2rem 0 3.5rem;
}

.hero-split {
  display: grid;
  gap: 1.4rem;
  align-items: center;
  margin-bottom: 1.7rem;
}

@media (min-width: 880px) {
  .hero-split {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

.hero-art img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 24px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero h1,
.page-head h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  font-weight: 650;
}

.lede,
.page-head p {
  max-width: 42rem;
  color: var(--cream-dim);
}

.page-head {
  margin-bottom: 1.6rem;
}

.panel {
  background:
    linear-gradient(180deg, rgba(240, 197, 106, 0.06), transparent 42%),
    var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

.panel + .panel,
.stack > * + * {
  margin-top: 1.15rem;
}

.tool-stage {
  display: grid;
  gap: 1.15rem;
}

@media (min-width: 880px) {
  .tool-stage.two {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }
}

.bpm-readout {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
}

.bpm-readout .value,
.big-result .value {
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 9vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--lamp);
}

.bpm-readout .unit,
.big-result .unit {
  color: var(--cream-dim);
  font-size: 0.95rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 0 0 1rem;
}

.field label {
  font-weight: 650;
}

.field .hint,
.note,
.disclaimer {
  color: var(--cream-dim);
  font-size: 0.95rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  color: var(--cream);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
}

.field input:user-invalid,
.field.invalid input,
.field.invalid select,
.field.invalid textarea {
  border-color: var(--warn);
}

.field-error {
  min-height: 1.3em;
  color: var(--warn);
  font-size: 0.92rem;
}

.row {
  display: grid;
  gap: 0.85rem;
}

@media (min-width: 640px) {
  .row.cols-2 {
    grid-template-columns: 1fr 1fr;
  }

  .row.cols-3 {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.1rem;
  padding: 0.75rem 1.15rem;
  border: 0;
  border-radius: 12px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary,
.btn-lamp {
  background: linear-gradient(180deg, var(--lamp), var(--brass));
  color: var(--ink);
}

.btn-primary:hover,
.btn-lamp:hover {
  filter: brightness(1.05);
}

.btn-ghost {
  background: transparent;
  color: var(--cream);
  border: 1px solid var(--line);
}

.btn-start {
  min-height: 4.1rem;
  width: 100%;
  font-size: 1.25rem;
}

.tap-pad {
  width: 100%;
  min-height: 11rem;
  border: 1px dashed var(--brass);
  border-radius: 16px;
  background: #2d261c;
  color: var(--cream);
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
  user-select: none;
}

.tap-pad:active {
  background: #3a3124;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.meter-pips {
  display: flex;
  gap: 0.4rem;
  margin: 0.4rem 0 1rem;
}

.pip {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: #3a3329;
  border: 1px solid var(--line);
}

.pip.on {
  background: var(--brass);
}

.pip.accent {
  background: var(--lamp);
  box-shadow: 0 0 0 4px rgba(240, 197, 106, 0.18);
}

.tool-grid,
.guide-grid {
  display: grid;
  gap: 0.85rem;
  margin: 1.25rem 0 0;
}

@media (min-width: 700px) {
  .tool-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 1000px) {
  .tool-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  display: block;
  padding: 1.1rem 1.15rem;
  background:
    linear-gradient(180deg, rgba(240, 197, 106, 0.05), transparent 50%),
    var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
}

.card-icon {
  display: grid;
  place-items: center;
  width: 2.7rem;
  height: 2.7rem;
  margin-bottom: 0.7rem;
  color: var(--lamp);
  background: #1a1611;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.card-icon svg {
  width: 1.55rem;
  height: 1.55rem;
}

.card:hover {
  border-color: var(--brass);
}

.card h2,
.card h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--cream);
}

.card p {
  margin: 0;
  color: var(--cream-dim);
}

.extras {
  display: grid;
  gap: 0.75rem;
}

.extra {
  padding: 0.85rem 1rem;
  background: #1c1813;
  border-left: 3px solid var(--brass);
  border-radius: 0 10px 10px 0;
}

.extra strong {
  display: block;
  color: var(--lamp);
}

.prose {
  max-width: 44rem;
}

.prose h2,
.faq h2,
.section-title {
  margin: 2rem 0 0.7rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
}

.prose p,
.prose li {
  color: var(--cream-dim);
}

.prose ul {
  padding-left: 1.2rem;
}

.faq details {
  margin: 0 0 0.55rem;
  padding: 0.7rem 0.85rem;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.faq summary {
  cursor: pointer;
  font-weight: 650;
}

.faq details p {
  margin: 0.55rem 0 0;
  color: var(--cream-dim);
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--cream-dim);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  color: var(--cream-dim);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--lamp);
}

.muted {
  color: var(--cream-dim);
}

.kicker {
  margin: 0 0 0.35rem;
  color: var(--brass);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.sticky-action {
  position: sticky;
  bottom: 4.6rem;
  z-index: 4;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.98rem;
}

th,
td {
  padding: 0.45rem 0.55rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

th {
  color: var(--cream);
}

.circle {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.circle span {
  display: grid;
  place-items: center;
  min-height: 3rem;
  background: var(--bg-panel);
  border-radius: 10px;
  border: 1px solid var(--line);
}

@media (max-width: 639px) {
  .header-inner {
    align-items: flex-start;
    padding: 0.55rem 0;
  }

  .brand-tag {
    display: none;
  }

  .hero h1,
  .page-head h1 {
    font-size: 1.85rem;
  }

  .hero .lede {
    margin-bottom: 0.7rem;
    font-size: 0.98rem;
  }

  .bpm-readout .value,
  .big-result .value {
    font-size: 3.1rem;
  }

  .session-bar-inner {
    flex-wrap: wrap;
  }

  .tap-pad {
    min-height: 8.5rem;
  }

  main {
    padding-top: 1.15rem;
  }

  .sticky-action {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .pip.accent {
    box-shadow: none;
  }
}