/* Prime Agent — launch landing page */
:root {
  --bg: #05070a;
  --bg-2: #080b12;
  --bg-3: #0d111c;
  --panel: rgba(13, 18, 30, 0.72);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #e6ebf2;
  --text-2: #aab3c3;
  --text-3: #7c8598;
  --cyan: #00f0ff;
  --violet: #8b5cf6;
  --magenta: #d946ef;
  --orange: #ff6b35;
  --green: #00ffa3;
  --yellow: #facc15;
  --radius: 16px;
  --radius-sm: 10px;
  --max: 1180px;
  --gutter: clamp(16px, 4vw, 64px);
  --font: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(0, 240, 255, 0.25);
  color: #fff;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  position: fixed;
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 8px 14px;
  background: var(--bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  z-index: 1000;
  color: var(--cyan);
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #5cfaff;
  text-decoration: underline;
}

p, h1, h2, h3, h4 {
  margin: 0;
}

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

.narrow {
  max-width: 800px;
  margin-inline: auto;
}

.gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet) 60%, var(--magenta) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section {
  padding: clamp(64px, 10vw, 120px) 0;
  position: relative;
}

.section-dark {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
  border-top: 1px solid var(--panel-border);
  border-bottom: 1px solid var(--panel-border);
}

.section-heading {
  margin-bottom: clamp(40px, 6vw, 72px);
  text-align: center;
}

.kicker {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 5px 12px;
  border-radius: 999px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  text-wrap: balance;
}

.section-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-2);
  max-width: 70ch;
  margin-inline: auto;
  text-wrap: balance;
}

.h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.small {
  font-size: 0.85rem;
  color: var(--text-3);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 7, 10, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--panel-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo:hover {
  text-decoration: none;
  color: var(--text);
}

.logo-mark {
  display: block;
  flex: none;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-weight: 600;
  font-size: 0.93rem;
}

.main-nav a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
  text-decoration: none;
}

.nav-cta {
  border: 1px solid var(--panel-border);
  background: rgba(255,255,255,0.04);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 140vw;
  height: 140vw;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0,240,255,0.12) 0%, rgba(139,92,246,0.08) 35%, transparent 70%);
  pointer-events: none;
  animation: pulseGlow 8s ease-in-out infinite;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 50% 40%, black 0%, transparent 65%);
  pointer-events: none;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.85; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.04); }
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
}

.hero-badge {
  display: inline-flex;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
}

.hero-badge span {
  border: 1px solid var(--panel-border);
  background: rgba(0,240,255,0.06);
  padding: 5px 12px;
  border-radius: 999px;
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 14ch;
}

.hero-title .gradient-text {
  font-size: clamp(3.2rem, 10vw, 7.2rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.subhead {
  font-size: clamp(1.2rem, 2.5vw, 1.9rem);
  font-weight: 500;
  color: var(--text-2);
  line-height: 1.3;
  max-width: 32ch;
}

.hero-lead {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--text-2);
  max-width: 58ch;
}

.hero-lead strong {
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  color: #05070a;
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.22);
}

.btn-primary:hover {
  color: #05070a;
  box-shadow: 0 12px 42px rgba(0, 240, 255, 0.35);
}

.btn-ghost {
  background: rgba(255,255,255,0.04);
  border-color: var(--panel-border);
  color: var(--text);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text);
}

/* Scoreline */
.hero-scoreline {
  width: 100%;
  max-width: 720px;
  margin-top: 24px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
}

.scoreline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 16px;
  flex-wrap: wrap;
}

.scoreline-label {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}

.scoreline-legend {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-2);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}

.dot-arc { background: var(--orange); }
.dot-pa { background: var(--green); }

.scoreline-chart {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.scoreline-row {
  display: grid;
  grid-template-columns: minmax(130px, 1fr) minmax(120px, 2.5fr) auto;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
}

.scoreline-name {
  color: var(--text-2);
  min-width: 0;
}

.scoreline-bar-wrap {
  position: relative;
  height: 12px;
  background: rgba(255,255,255,0.06);
  border-radius: 6px;
  overflow: hidden;
}

.scoreline-bar {
  height: 100%;
  border-radius: 6px;
  width: 0%;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.arc-bar { background: var(--orange); }
.pa-bar { background: var(--green); box-shadow: 0 0 14px rgba(0,255,163,0.35); }

.scoreline-value {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--text-2);
  min-width: 48px;
  text-align: right;
}

.scoreline-value.strong {
  color: var(--green);
}

.bar-baseline {
  position: absolute;
  left: var(--b, 95.4%);
  top: 0;
  bottom: 0;
  width: 1px;
  pointer-events: none;
  transform: translateX(-50%);
}

.bar-baseline-line {
  position: absolute;
  left: 0;
  top: -3px;
  bottom: -3px;
  width: 1px;
  background: rgba(255,255,255,0.45);
}

.bar-baseline-label {
  position: absolute;
  left: 50%;
  top: -20px;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.68rem;
  color: var(--text-3);
  background: var(--bg-3);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
}

.scoreline-caption {
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--text-3);
}

/* Timeline */
.arc-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}

.timeline-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.timeline-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

.timeline-date {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.timeline-stat {
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1;
}

.timeline-highlight {
  border-color: rgba(0,255,163,0.35);
  background: linear-gradient(180deg, rgba(0,255,163,0.08), var(--panel));
}

.timeline-highlight .timeline-stat {
  color: var(--green);
}

.timeline-card p {
  color: var(--text-2);
  font-size: 0.95rem;
  margin-top: 4px;
}

/* Swap grid */
.arc-scores {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px);
}

.arc-scores h3 {
  margin-bottom: 22px;
}

.swap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.swap-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  padding: 22px;
}

.swap-model {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 10px;
}

.swap-values {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.swap-from {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--orange);
}

.swap-arrow {
  font-size: 1.4rem;
  color: var(--text-3);
}

.swap-to {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1;
}

.swap-label {
  font-size: 0.85rem;
  color: var(--text-3);
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.feature-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(0,0,0,0.22);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(0,240,255,0.08);
  border: 1px solid rgba(0,240,255,0.18);
  margin-bottom: 18px;
  font-size: 1.3rem;
  color: var(--cyan);
}

.icon-braces { font-family: var(--mono); font-weight: 700; }
.icon-loop { color: var(--violet); }
.icon-nodes { color: var(--magenta); }
.icon-clock { color: var(--green); }

.feature-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-2);
  font-size: 0.98rem;
}

.tui-note {
  text-align: center;
  color: var(--text-3);
  font-size: 0.92rem;
}

/* Inline code */
code.inline, .inline {
  font-family: var(--mono);
  font-size: 0.9em;
  background: rgba(255,255,255,0.08);
  padding: 2px 6px;
  border-radius: 5px;
  color: var(--cyan);
}

/* RLM Lab */
.rlm-lab-section {
  overflow: hidden;
}

.lab-stage {
  position: relative;
  width: 100%;
  height: clamp(320px, 50vh, 560px);
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  background: radial-gradient(circle at 50% 50%, rgba(0,240,255,0.06), transparent 60%), var(--bg-3);
  overflow: hidden;
  outline: none;
}

.lab-stage:focus-visible {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,240,255,0.2);
}

#rlmCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.lab-overlay {
  position: absolute;
  bottom: 18px;
  left: 18px;
  display: flex;
  align-items: flex-end;
  gap: 14px;
  pointer-events: none;
}

.lab-hud {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: rgba(5,7,10,0.7);
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
}

.lab-key-row {
  display: flex;
  gap: 4px;
}

.lab-key {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--panel-border);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-3);
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}

.lab-key.lab-key-active {
  background: rgba(0,240,255,0.18);
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,240,255,0.25);
}

.lab-hint {
  color: var(--text-3);
  font-size: 0.85rem;
  background: rgba(5,7,10,0.7);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  margin: 0;
}

/* Suite */
.suite-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.win-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: transform 0.2s ease;
}

.win-card:hover { transform: translateY(-3px); }

.win-stat {
  display: block;
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 10px;
  color: var(--text);
}

.win-card-highlight .win-stat {
  color: var(--green);
}

.win-label {
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.4;
}

.swing-spotlight {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: linear-gradient(135deg, rgba(0,240,255,0.06), rgba(139,92,246,0.06));
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px);
  margin-bottom: 32px;
}

.swing-copy p {
  color: var(--text-2);
}

.swing-thermo {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.thermo-label {
  font-size: 0.85rem;
  color: var(--text-3);
}

.thermo-track {
  height: 14px;
  background: rgba(255,255,255,0.06);
  border-radius: 7px;
  overflow: hidden;
}

.thermo-fill {
  height: 100%;
  border-radius: 7px;
  width: 0%;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--orange);
}

.thermo-fill.pa {
  background: var(--green);
  box-shadow: 0 0 16px rgba(0,255,163,0.3);
}

.evals-note {
  text-align: center;
  max-width: 80ch;
  margin-inline: auto;
}

/* Case studies */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.25s ease;
}

.case-card:hover { transform: translateY(-4px); }

.case-icon {
  font-size: 2.2rem;
  line-height: 1;
  margin-bottom: 12px;
  filter: grayscale(0.2);
}

.case-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.case-card p {
  color: var(--text-2);
  font-size: 0.96rem;
}

/* Comparison table */
.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  background: var(--panel);
}

.compare-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.compare-table th,
.compare-table td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--panel-border);
  vertical-align: top;
}

.compare-table thead th {
  background: rgba(255,255,255,0.04);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
}

.compare-table tbody th {
  color: var(--text);
  font-weight: 700;
  width: 180px;
  min-width: 160px;
}

.compare-table tbody td {
  color: var(--text-2);
  min-width: 130px;
}

.col-pa, .cell-pa {
  color: var(--cyan);
  background: rgba(0,240,255,0.04);
  font-weight: 600;
}

.compare-table tr:last-child th,
.compare-table tr:last-child td {
  border-bottom: none;
}

.fair-note {
  margin-top: 24px;
  text-align: center;
  color: var(--text-2);
  font-size: 0.95rem;
}

.fair-note strong { color: var(--text); }

/* Caveats */
.caveat-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 36px);
}

.caveat-list {
  margin: 0;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  color: var(--text-2);
}

.caveat-list li::marker {
  color: var(--cyan);
}

.caveat-list strong { color: var(--text); }

/* Install */
.install {
  background: radial-gradient(circle at 50% 0%, rgba(0,240,255,0.08), transparent 45%), var(--bg);
}

.install-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px);
  text-align: center;
}

.code-block {
  position: relative;
  background: #020305;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  overflow: hidden;
  text-align: left;
  margin-bottom: 18px;
}

.code-block pre {
  margin: 0;
  overflow-x: auto;
}

.code-block code {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--green);
}

.copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 7px 12px;
  color: var(--text-2);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.copy-btn:hover {
  background: rgba(255,255,255,0.12);
  color: var(--text);
}

.copy-btn.copied { color: var(--green); }

.install-steps {
  color: var(--text-2);
  margin-bottom: 24px;
}

.install-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--panel-border);
  padding: 40px 0;
  color: var(--text-3);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links {
  display: inline-flex;
  gap: 20px;
  margin: 0;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--delay, 0s);
}

.reveal-active {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero-glow { animation: none; }
}

/* Responsive */
@media (max-width: 900px) {
  .arc-timeline { grid-template-columns: 1fr; }
  .swap-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .suite-summary { grid-template-columns: repeat(2, 1fr); }
  .swing-spotlight { grid-template-columns: 1fr; }

  .scoreline-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .scoreline-value { text-align: left; }

  .main-nav {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    background: rgba(5,7,10,0.96);
    border-bottom: 1px solid var(--panel-border);
    padding: 16px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.2s ease;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .menu-toggle {
    display: flex;
  }

  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 640px) {
  .hero { padding: 96px 0 56px; }
  .hero-actions { width: 100%; }
  .btn { width: 100%; }
  .suite-summary { grid-template-columns: 1fr; }
  .hero-scoreline { padding: 18px; }
  .compare-table { font-size: 0.82rem; }
  .compare-table th, .compare-table td { padding: 12px 14px; }
}

@media (max-width: 480px) {
  .hero-title .gradient-text { font-size: 3.4rem; }
  .subhead { font-size: 1.15rem; }
}