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

:root {
  /* Landing page theme — dark with visible pattern */
  --bg: #141210;
  --bg-alt: #1c1a16;
  --bg-card: #1e1c18;
  --accent: #c4884d;
  --accent-dim: rgba(196, 136, 77, 0.12);
  --text: #e8e2d8;
  --text-muted: #8a847a;
  --border: rgba(255, 255, 255, 0.06);
  --mono: 'IBM Plex Mono', monospace;
  --max-w: 960px;

  /* Variables used by the animated explainers */
  --color-background-secondary: #1e1c18;
  --color-text-primary: #e8e2d8;
  --color-text-secondary: #8a847a;
  --color-text-tertiary: #5a5650;
  --color-border-tertiary: rgba(255, 255, 255, 0.06);
  --border-radius-lg: 0px;
  --border-radius-md: 0px;
  --font-mono: 'IBM Plex Mono', monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--mono);
  font-weight: 500;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260' viewBox='0 0 260 260'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='0.6' opacity='0.045'%3E%3Cpath d='M30 20v30M26 20v12a4 4 0 004 4 4 4 0 004-4V20M34 20v12'/%3E%3Cellipse cx='80' cy='28' rx='8' ry='12'/%3E%3Cpath d='M80 40v20'/%3E%3Cpath d='M130 15v45M130 15c8 0 8 20 0 20'/%3E%3Cpath d='M180 55v15M180 55c-8-20 0-40 0-40M180 55c8-20 0-40 0-40M180 55c-4-20 0-40 0-40M180 55c4-20 0-40 0-40'/%3E%3Crect x='215' y='30' width='30' height='22' rx='3'/%3E%3Cpath d='M210 35h40M225 30v-8M235 30v-8'/%3E%3Crect x='20' y='100' width='40' height='10' rx='5'/%3E%3Crect x='14' y='102' width='8' height='6' rx='2'/%3E%3Crect x='58' y='102' width='8' height='6' rx='2'/%3E%3Crect x='95' y='90' width='14' height='8' rx='2'/%3E%3Cpath d='M102 98v22'/%3E%3Cpath d='M140 110h20v-5a10 10 0 00-20 0z'/%3E%3Ccircle cx='145' cy='98' r='5'/%3E%3Ccircle cx='155' cy='98' r='5'/%3E%3Ccircle cx='150' cy='94' r='5'/%3E%3Crect x='190' y='90' width='16' height='28' rx='2'/%3E%3Cpath d='M194 96h2M200 96h2M194 102h2M200 102h2M194 108h2M200 108h2'/%3E%3Cellipse cx='240' cy='105' rx='18' ry='6'/%3E%3Cellipse cx='240' cy='105' rx='12' ry='4'/%3E%3Cpath d='M25 170c0-8 6-14 12-14s12 6 12 14v20H25z'/%3E%3Cpath d='M25 180h24'/%3E%3Crect x='78' y='165' width='12' height='24' rx='3'/%3E%3Cpath d='M84 165v-8M80 162h8'/%3E%3Crect x='130' y='170' width='18' height='18' rx='2'/%3E%3Cpath d='M148 175a6 6 0 010 8'/%3E%3Crect x='185' y='168' width='28' height='20' rx='4'/%3E%3Cpath d='M190 188v6'/%3E%3Cellipse cx='245' cy='178' rx='8' ry='11' transform='rotate(-15 245 178)'/%3E%3Ccircle cx='30' cy='240' r='12'/%3E%3Ccircle cx='30' cy='240' r='8'/%3E%3Cpath d='M30 240v-6M26 228h8'/%3E%3Ccircle cx='90' cy='235' r='9'/%3E%3Cpath d='M97 229l14-14'/%3E%3Crect x='140' y='225' width='20' height='16' rx='1'/%3E%3Cpath d='M150 241v10'/%3E%3Cellipse cx='210' cy='240' rx='18' ry='5'/%3E%3Cpath d='M228 240h18'/%3E%3C/g%3E%3C/svg%3E"),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='480' height='360' viewBox='0 0 480 360'%3E%3Ctext font-family='monospace' font-size='9' fill='%23ffffff' opacity='0.04'%3E%3Ctspan x='10' y='18'%3Ecv::Mat frame%2C gray%2C diff%3B%3C/tspan%3E%3Ctspan x='10' y='30'%3Ecv::absdiff(frame%2C bg_%2C diff)%3B%3C/tspan%3E%3Ctspan x='10' y='42'%3Ecv::threshold(diff%2C mask%2C 25%2C%3C/tspan%3E%3Ctspan x='10' y='54'%3E 255%2C cv::THRESH_BINARY)%3B%3C/tspan%3E%3Ctspan x='10' y='78'%3Estruct LandmarkFrame %7B%3C/tspan%3E%3Ctspan x='10' y='90'%3E float xyz%5B21%5D%5B3%5D%3B%3C/tspan%3E%3Ctspan x='10' y='102'%3E float confidence%3B%3C/tspan%3E%3Ctspan x='10' y='114'%3E uint64_t ts_ns%3B%3C/tspan%3E%3Ctspan x='10' y='126'%3E%7D%3B%3C/tspan%3E%3Ctspan x='10' y='150'%3Eauto wrist = kps%5B0%5D%3B%3C/tspan%3E%3Ctspan x='10' y='162'%3Efloat theta = atan2(%3C/tspan%3E%3Ctspan x='10' y='174'%3E mcp.y - wrist.y%2C%3C/tspan%3E%3Ctspan x='10' y='186'%3E mcp.x - wrist.x)%3B%3C/tspan%3E%3Ctspan x='10' y='210'%3Efloat blade_x = wrist.x%3C/tspan%3E%3Ctspan x='10' y='222'%3E %2B d * cos(theta %2B alpha)%3B%3C/tspan%3E%3Ctspan x='260' y='18'%3Emov rax%2C %5Brsp%2B8%5D%3C/tspan%3E%3Ctspan x='260' y='30'%3Emulss xmm0%2C xmm1%3C/tspan%3E%3Ctspan x='260' y='42'%3Eaddss xmm0%2C %5Brbx%2B4%5D%3C/tspan%3E%3Ctspan x='260' y='54'%3Ecomiss xmm0%2C xmm2%3C/tspan%3E%3Ctspan x='260' y='66'%3Ejb .below_threshold%3C/tspan%3E%3Ctspan x='260' y='90'%3Efor (int i%3D0%3B i%3C21%3B i%2B%2B)%3C/tspan%3E%3Ctspan x='260' y='102'%3E score %2B= w%5Bi%5D * dist(p%5Bi%5D)%3B%3C/tspan%3E%3Ctspan x='260' y='126'%3Etypedef struct %7B%3C/tspan%3E%3Ctspan x='260' y='138'%3E uint16_t stroke_id%3B%3C/tspan%3E%3Ctspan x='260' y='150'%3E float peak_velocity%3B%3C/tspan%3E%3Ctspan x='260' y='162'%3E float area_mm2%3B%3C/tspan%3E%3Ctspan x='260' y='174'%3E float uniformity%3B%3C/tspan%3E%3Ctspan x='260' y='186'%3E%7D StrokeRecord%3B%3C/tspan%3E%3Ctspan x='260' y='210'%3Edouble cv = 1.4826 * mad%3C/tspan%3E%3Ctspan x='260' y='222'%3E / median%3B%3C/tspan%3E%3Ctspan x='260' y='246'%3E.section .rodata%3C/tspan%3E%3Ctspan x='260' y='258'%3Eweights: .float 0.35%2C0.45%2C0.20%3C/tspan%3E%3Ctspan x='10' y='246'%3Econtours.clear()%3B%3C/tspan%3E%3Ctspan x='10' y='258'%3EfindContours(mask%2C contours%2C%3C/tspan%3E%3Ctspan x='10' y='270'%3E RETR_EXTERNAL%2C%3C/tspan%3E%3Ctspan x='10' y='282'%3E CHAIN_APPROX_SIMPLE)%3B%3C/tspan%3E%3Ctspan x='260' y='282'%3Ethreshold: .float 25.0%3C/tspan%3E%3Ctspan x='10' y='306'%3E// reward signal for epoch N%2B1%3C/tspan%3E%3Ctspan x='10' y='318'%3Eloss %2B= mse(pred%2C gt_area)%3B%3C/tspan%3E%3Ctspan x='260' y='306'%3Ecmp eax%2C 0x15%3C/tspan%3E%3Ctspan x='260' y='318'%3Ejge .stroke_valid%3C/tspan%3E%3Ctspan x='10' y='342'%3Ezarr::Array%3Cfloat%3E a(shape)%3B%3C/tspan%3E%3Ctspan x='260' y='342'%3Eret%3C/tspan%3E%3C/text%3E%3C/svg%3E");
  background-repeat: repeat;
}

/* ===== NAV ===== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  background: rgba(20, 18, 16, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-wordmark {
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: -0.02em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: color 0.2s;
}

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

/* ===== THESIS HERO ===== */

.thesis-hero {
  padding: 7rem 2rem 4rem;
}

.thesis-wrap {
  max-width: 720px;
  margin: 0 auto;
}

.axiom-line {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.thesis-heading {
  font-family: var(--mono);
  font-size: clamp(1.4rem, 3.5vw, 2rem);
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.thesis-heading em {
  font-weight: 700;
  font-style: italic;
  color: var(--accent);
}

.sub-thesis {
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.eq-block {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text);
  padding: 1.25rem 1.5rem;
  border-left: 2px solid var(--accent);
  margin: 2rem 0;
  line-height: 2;
  background: var(--bg-alt);
}

.eq-note {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.section-mark {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  margin: 2.5rem 0 1rem;
}

.fig-label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.thesis-hero canvas {
  display: block;
  width: 100%;
  border: 1px solid var(--border);
}

.fig-caption {
  font-size: 0.75rem;
  font-weight: 400;
  font-style: italic;
  color: var(--text-muted);
  margin-top: 0.75rem;
  line-height: 1.7;
}

.body-text {
  font-size: 0.85rem;
  font-weight: 400;
  line-height: 1.9;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.body-text strong {
  color: var(--text);
  font-weight: 600;
}

.cite-block {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 2rem;
  line-height: 2;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

/* ===== SIGNUP FORM ===== */

.signup-form {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  justify-content: center;
}

.signup-form input[type="email"] {
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-right: none;
  background: var(--bg-alt);
  color: var(--text);
  font-size: 0.8rem;
  font-family: var(--mono);
  font-weight: 400;
  min-width: 220px;
  outline: none;
  transition: border-color 0.2s;
}

.signup-form input[type="email"]:focus {
  border-color: var(--accent);
}

.signup-form select {
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-right: none;
  background: var(--bg-alt);
  color: var(--text);
  font-size: 0.8rem;
  font-family: var(--mono);
  font-weight: 400;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  transition: border-color 0.2s;
}

.signup-form select:focus {
  border-color: var(--accent);
}

.signup-form button {
  padding: 0.8rem 1.4rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #0d0c0a;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
}

.signup-form button:hover {
  opacity: 0.85;
}

.signup-form button:active {
  transform: scale(0.97);
}

.signup-form button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== SECTIONS ===== */

section {
  padding: 5rem 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

section h2 {
  font-family: var(--mono);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

section h3 {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

section p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.8;
  font-weight: 400;
}

/* ===== HOW ===== */

.how {
  border-top: 1px solid var(--border);
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.how-step {
  padding: 1.5rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.step-num {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.how-step p {
  max-width: 300px;
}

/* ===== EXPLAINER SECTIONS ===== */

.explainer-section {
  border-top: 1px solid var(--border);
}

.explainer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.explainer-grid.reverse {
  direction: rtl;
}

.explainer-grid.reverse > * {
  direction: ltr;
}

.explainer-text h2 {
  font-size: clamp(1rem, 2vw, 1.3rem);
}

.explainer-text p {
  margin-bottom: 1.5rem;
  line-height: 1.9;
}

.explainer-canvas {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1rem;
  position: sticky;
  top: 5rem;
}

.explainer-canvas canvas {
  display: block;
  width: 100%;
}

/* Hand pose explainer */
.terms {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.term {
  font-size: 0.7rem;
  font-family: var(--mono);
  padding: 4px 10px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all 0.3s;
}

.term.active {
  border-color: #1D9E75;
  color: #1D9E75;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.stat {
  background: var(--bg-alt);
  padding: 10px 12px;
  text-align: center;
}

.stat-val {
  font-size: 1.2rem;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--text);
}

.stat-lbl {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Piece segmentation */
.phase-bar {
  display: flex;
  gap: 2px;
  margin-top: 14px;
}

.phase-seg {
  flex: 1;
  height: 3px;
  background: var(--border);
  transition: background 0.6s;
}

.phase-seg.on {
  background: #1D9E75;
}

.phase-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
}

.phase-lbl {
  font-size: 0.6rem;
  font-family: var(--mono);
  color: var(--text-muted);
  transition: color 0.4s;
}

.phase-lbl.on {
  color: #1D9E75;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.metric-card {
  border: 1px solid var(--border);
  padding: 12px;
  text-align: center;
  transition: border-color 0.4s;
  background: var(--bg-card);
}

.metric-card.highlight {
  border-color: #1D9E75;
}

.mc-label {
  font-size: 0.6rem;
  font-family: var(--mono);
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.mc-val {
  font-size: 1.3rem;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--text);
  margin: 4px 0;
}

.mc-unit {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.mc-formula {
  font-size: 0.6rem;
  font-family: var(--mono);
  color: var(--text-muted);
  margin-top: 6px;
  font-style: italic;
}

/* Scoring rubric */
.score-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 14px;
}

.score-cell {
  border: 1px solid var(--border);
  padding: 14px 10px;
  text-align: center;
  transition: all 0.5s;
  background: var(--bg-card);
}

.score-cell.pulse {
  border-color: #1D9E75;
}

.sc-name {
  font-size: 0.6rem;
  font-family: var(--mono);
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.sc-val {
  font-size: 1.5rem;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--text);
  transition: color 0.3s;
}

.sc-sub {
  font-size: 0.6rem;
  font-family: var(--mono);
  color: var(--text-muted);
  margin-top: 4px;
}

.sc-weight {
  font-size: 0.6rem;
  font-family: var(--mono);
  color: var(--text-muted);
  margin-top: 2px;
}

.formula-strip {
  margin-top: 12px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.4s;
  background: var(--bg-card);
}

.formula-strip.active {
  border-color: #1D9E75;
  color: #1D9E75;
}

.pass-badge {
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 4px 14px;
  font-weight: 600;
}

/* Data pipeline */
.pipe-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-top: 14px;
}

.ps {
  background: var(--bg-alt);
  padding: 10px 8px;
  text-align: center;
  transition: all 0.4s;
  border: 1px solid transparent;
}

.ps.lit {
  border-color: #1D9E75;
}

.ps-v {
  font-size: 1.1rem;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--text);
}

.ps-l {
  font-size: 0.55rem;
  font-family: var(--mono);
  color: var(--text-muted);
  margin-top: 2px;
  letter-spacing: 0.5px;
}

.flywheel-text {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  padding: 10px 14px;
  border: 1px solid var(--border);
  min-height: 18px;
  transition: all 0.3s;
  background: var(--bg-card);
}

/* ===== DEMO ===== */

.demo {
  text-align: center;
  padding-top: 2rem;
  padding-bottom: 5rem;
}

.demo-video-wrap {
  width: 100%;
  max-width: 780px;
  margin: 0 auto 1.5rem;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.demo-video-wrap video {
  display: block;
  width: 100%;
  height: auto;
}

.demo-caption {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== MEDIA GRID ===== */

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  padding-top: 0;
}

.media-slot {
  aspect-ratio: 16 / 10;
  border: 1px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-alt);
}

.media-slot video,
.media-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== TWO THINGS ===== */

.two-things {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  border-top: 1px solid var(--border);
}

.thing {
  padding: 1.5rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.thing p {
  max-width: 360px;
}

/* ===== KITCHEN LINE ===== */

.kitchen-line {
  border-top: 1px solid var(--border);
  max-width: 640px;
}

.kitchen-line p {
  margin-bottom: 1.25rem;
}

.kitchen-line .strong {
  color: var(--text);
  font-weight: 600;
}

/* ===== MARKETPLACE / WAITLIST ===== */

.marketplace {
  text-align: center;
  border-top: 1px solid var(--border);
}

.marketplace p {
  max-width: 460px;
  margin: 0 auto 1.5rem;
}

/* ===== FOOTER ===== */

footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
}

.footer-top {
  margin-bottom: 1.25rem;
}

.footer-wordmark {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.footer-co,
.footer-email {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 1rem 0;
}

.footer-links a {
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.footer-legal {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin: 1.25rem 0;
}

.footer-legal a {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.footer-legal a:hover {
  border-color: var(--text-muted);
}


/* ===== TOAST ===== */

.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--text);
  color: var(--bg);
  padding: 0.8rem 1.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
  z-index: 1000;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 700px) {
  .nav {
    padding: 1rem 1.25rem;
  }

  .nav-links {
    gap: 0.75rem;
  }

  .nav-links a {
    font-size: 0.6rem;
  }

  .hero {
    padding: 5rem 1.25rem 2rem;
    gap: 2rem;
  }

  .wordmark {
    font-size: 1.6rem;
  }

  section {
    padding: 3.5rem 1.25rem;
  }

  .explainer-wrap {
    padding: 1rem;
  }

  .signup-form {
    flex-direction: column;
    align-items: stretch;
  }

  .signup-form input[type="email"] {
    border-right: 1px solid var(--border);
    border-bottom: none;
    min-width: 100%;
  }

  .signup-form select {
    border-right: 1px solid var(--border);
    border-bottom: none;
    width: 100%;
  }

  .signup-form button {
    width: 100%;
  }

  .how-steps {
    grid-template-columns: 1fr;
  }

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

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

  .pipe-stats {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .phase-labels {
    flex-wrap: wrap;
    gap: 2px;
  }

  .phase-lbl {
    font-size: 0.5rem;
  }

  .explainer-grid {
    grid-template-columns: 1fr;
  }

  .explainer-grid.reverse {
    direction: ltr;
  }

  .explainer-canvas {
    position: static;
  }

  .two-things {
    grid-template-columns: 1fr;
  }

  .media-grid {
    grid-template-columns: 1fr;
  }
}