/* cohere.css — Cohere-inspired dark design system */

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

:root {
  --bg:            #0f0f13;
  --surface:       #17171c;
  --surface-2:     #1d1d25;
  --surface-hover: #21212a;
  --border:        #2c2c38;
  --border-soft:   #222230;

  --text:          #eaeaee;
  --text-muted:    #8a8a9a;
  --text-dim:      #52526a;

  --deep-green:    #003c33;
  --coral:         #ff7759;
  --blue:          #5580f0;
  --accent-blue:   #5580f0;  /* compat alias for inline styles */
  --accent-green:  #3ecf8e;

  --font-display: 'Space Grotesk', 'Inter', ui-sans-serif, system-ui;
  --font-body:    'Inter', ui-sans-serif, system-ui;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;

  --r-xs:   4px;
  --r-sm:   8px;
  --r-pill: 32px;

  --t: 120ms ease;
}

html { font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Nav ─────────────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.nav-logo span { color: var(--text-muted); }

.nav-back {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--t);
}

.nav-back:hover { color: var(--text); }

/* ── Hero (landing) ──────────────────────────────────── */
.hero-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 72px 24px 56px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 5px 14px;
  margin-bottom: 32px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
  flex-shrink: 0;
}

.hero-display {
  font-family: var(--font-display);
  font-size: clamp(52px, 10vw, 80px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 380px;
}

/* ── Tool page header ────────────────────────────────── */
.dim { color: var(--text-muted); }

header { margin-bottom: 28px; }

.page-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 6px;
}

.page-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

header a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: color var(--t);
}

header a:hover { color: var(--text); }

/* ── Container ───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
  padding: 36px 24px 64px;
  flex: 1;
}

/* ── Card ────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 20px 24px;
  margin-bottom: 16px;
}

.card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
}

.card p + p { margin-top: 8px; }

.card-title {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 10px;
}

/* ── Resolution tags ─────────────────────────────────── */
.res-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  align-items: center;
  justify-content: flex-end;
}

.form-group.res-stack .res-tag-row { justify-content: flex-start; }

.res-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  padding: 1px 4px;
  cursor: pointer;
  transition: all var(--t);
}

.res-tag:hover {
  color: var(--text-muted);
  border-color: var(--text-muted);
}

.res-tag.active {
  color: var(--accent-green);
  border-color: var(--accent-green);
  background: rgba(62, 207, 142, 0.06);
}

.res-tag-custom-btn {
  font-style: italic;
  color: var(--text-dim);
  border-style: dashed;
}

.res-tag-custom {
  width: 58px;
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  color: var(--text);
  padding: 2px 5px;
  text-align: center;
  outline: none;
  margin-left: auto;
}

.res-tag-custom:focus { border-color: var(--blue); }

@media (max-width: 600px) {
  .res-tag-row { justify-content: flex-start; }
}
.form-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px solid var(--border-soft);
}

.form-group:last-of-type { border-bottom: none; }

.form-group.res-stack {
  flex-direction: column;
  align-items: stretch;
}

.form-group.res-stack label { min-width: auto; margin-bottom: 2px; }

.form-group label {
  font-size: 13px;
  color: var(--text);
  flex-shrink: 0;
  min-width: 130px;
}

.form-group .hint {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
  font-weight: 400;
  line-height: 1.4;
}

.form-group input,
.form-group select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 6px 10px;
  width: 80px;
  text-align: right;
  transition: border-color var(--t);
  -moz-appearance: textfield;
  outline: none;
}

.form-group input::-webkit-outer-spin-button,
.form-group input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.form-group input:focus,
.form-group select:focus { border-color: var(--blue); }

.form-group select { text-align: left; cursor: pointer; }
.form-group select.game-select { width: 200px; }

.input-with-select {
  display: flex;
  gap: 4px;
  align-items: center;
}

.input-with-select input { width: 70px !important; }

select.yaw-preset {
  width: 115px;
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  color: var(--text-dim);
  padding: 6px 4px;
  cursor: pointer;
  outline: none;
}

select.yaw-preset:focus { border-color: var(--blue); }

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 7px 18px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--t), border-color var(--t), color var(--t);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.btn-primary:hover { background: #ffffff; border-color: #ffffff; }

.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}

.btn-secondary:hover { color: var(--text); border-color: var(--text-muted); }

.btn-sm { font-size: 11px; padding: 4px 10px; }

.btn-row {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding-top: 12px;
}

/* ── Tabs ────────────────────────────────────────────── */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--t), border-color var(--t);
  white-space: nowrap;
  flex-shrink: 0;
}

.tab-btn:hover { color: var(--text-muted); }

.tab-btn.active {
  color: var(--text);
  border-bottom-color: var(--coral);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Result block ────────────────────────────────────── */
.result-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-green);
  border-radius: 0 var(--r-xs) var(--r-xs) 0;
  padding: 14px 16px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--text-muted);
  display: none;
}

.result-block.visible { display: block; }
.result-block b { color: var(--blue); font-weight: 500; }
.result-block .cmd { color: var(--accent-green); }

.result-section { margin-bottom: 10px; }
.result-section:last-child { margin-bottom: 0; }

.res-dpi-click {
  color: var(--accent-green);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}

.res-dpi-click:hover { color: var(--text); }

.result-section .section-label {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 3px;
}

/* ── FOV result cards ────────────────────────────────── */
.fov-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
}

.fov-result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 14px 16px;
}

.fov-result-card .fov-label {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.fov-result-card .fov-values {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
  line-height: 1.8;
}

.fov-result-card .fov-values span { color: var(--accent-green); }

.transfer-btn { font-size: 11px; padding: 3px 8px; margin-left: 6px; vertical-align: middle; }

/* ── Footer ──────────────────────────────────────────── */
footer {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-soft);
  font-size: 12px;
  color: var(--text-dim);
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--t);
}

footer a:hover { color: var(--text); }

/* Landing page footer band */
.footer-band {
  background: var(--deep-green);
  padding: 40px 48px;
  text-align: center;
  margin-top: auto;
}

.footer-quote {
  font-family: var(--font-display);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.01em;
}

/* ── Landing link cards ──────────────────────────────── */
.links-section {
  max-width: 580px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px 64px;
}

.links-grid {
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 22px;
  text-decoration: none;
  color: var(--text);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  transition: background var(--t);
}

.link-card:last-child { border-bottom: none; }
.link-card:hover { background: var(--surface-hover); }

.link-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r-xs);
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.link-content { flex: 1; min-width: 0; }

.link-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.link-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.link-arrow {
  color: var(--border);
  font-size: 16px;
  flex-shrink: 0;
  transition: color var(--t);
}

.link-card:hover .link-arrow { color: var(--text-muted); }

/* ── TradingView indicator list ──────────────────────── */
.link-list { display: flex; flex-direction: column; }

.indicator-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 10px;
  text-decoration: none;
  color: var(--text);
  border-radius: var(--r-xs);
  transition: background var(--t);
  margin: 0 -10px;
}

.indicator-link:hover { background: var(--surface-hover); }

.indicator-link strong { font-weight: 500; font-size: 13px; }

.indicator-link small {
  font-size: 12px;
  color: var(--text-muted);
  margin-left: 8px;
}

/* ── Badges ──────────────────────────────────────────── */
.link-badge {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: var(--r-pill);
  flex-shrink: 0;
}

.badge-green {
  background: rgba(62, 207, 142, 0.1);
  color: var(--accent-green);
  border: 1px solid rgba(62, 207, 142, 0.2);
}

.badge-blue {
  background: rgba(85, 128, 240, 0.1);
  color: var(--blue);
  border: 1px solid rgba(85, 128, 240, 0.2);
}

/* ── Donate list ─────────────────────────────────────── */
.donate-list {
  font-size: 13px;
  line-height: 2;
  color: var(--text-muted);
}

.donate-list code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-green);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  padding: 1px 5px;
  word-break: break-all;
}

.donate-list b { color: var(--text); font-weight: 500; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 600px) {
  .site-nav { padding: 16px 20px; }
  .hero-centered { padding: 48px 20px 40px; }
  .links-section { padding: 0 16px 48px; }
  .footer-band { padding: 32px 24px; }
  .container { padding: 24px 16px 48px; }

  .form-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .form-group input,
  .form-group select { width: 100%; text-align: left; }

  .fov-results { grid-template-columns: 1fr; }
}

/* ── Visualizations ──────────────────────────────────── */
.visual-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 10px;
}

@media (max-width: 600px) {
  .visual-row { grid-template-columns: 1fr; }
}

/* ── Sensitivity spectrum bar ────────────────────────── */
.spectrum-bar { }

.spectrum-slider-wrap {
  padding: 2px 0 6px;
}

.spectrum-slider-wrap input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(to right, var(--coral), #e8c547, var(--accent-green));
  outline: none;
  cursor: pointer;
  margin: 2px 0 1px;
}

.spectrum-slider-wrap input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--bg);
  cursor: pointer;
  box-shadow: 0 0 0 1px var(--border);
}

.spectrum-slider-wrap input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--bg);
  cursor: pointer;
  box-shadow: 0 0 0 1px var(--border);
}

.spectrum-slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.spectrum-slider.fov-slider {
  background: linear-gradient(to right, var(--blue), var(--coral));
}

.fov-info-line {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  line-height: 1.5;
}

.fov-info-line span { color: var(--accent-green); }

/* ── Mousepad visualizer ─────────────────────────────── */
.pad-visual { }

.pad-track {
  display: flex;
  height: 8px;
  border-radius: 2px;
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  margin: 9px 0 5px;
}

.pad-track .pad-segment {
  background: var(--accent-green);
  opacity: 0.5;
  flex-shrink: 0;
}

.pad-track .pad-segment:nth-child(odd) { opacity: 0.35; }
.pad-track .pad-segment:last-child { border-right: none; }
.pad-track .pad-remainder { opacity: 0.2; background: var(--blue); }

.pad-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* ── FOV cone SVG ────────────────────────────────────── */
.fov-cone-container {
  margin-top: 14px;
}

.fov-cone-container svg {
  display: block;
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
}