/* Terminal-style homepage aligned with docs.agentswap.co/brand.
 * Exports: landing composition, navigation, content sections and responsive rules.
 * Dependencies: canonical palette and JetBrains Mono in style.css; scene.css. */
.landing { --text-dim: #737373; --page-width: 1120px; --page-gutter: max(24px, calc((100% - var(--page-width)) / 2)); color-scheme: dark; font-size: 14px; line-height: 1.7; }
.landing a { color: var(--cyan); }
.landing h1, .landing h2, .landing h3 { color: var(--green); font-weight: 600; line-height: 1.4; letter-spacing: -0.025em; }
.landing h2 { font-size: 22px; margin: 0 0 20px; }
.landing h3 { font-size: 16px; margin: 0 0 12px; }
.landing p { color: var(--text); }
.landing-main { max-width: none; padding: 0; margin: 0; }
.landing-nav { min-height: 68px; display: flex; align-items: center; padding: 12px var(--page-gutter); border-bottom: 1px solid var(--border); gap: 32px; }
.landing .wordmark { display: inline-flex; align-items: center; gap: 8px; color: var(--green); text-transform: lowercase; font-size: 14px; font-weight: 700; white-space: nowrap; }
.wordmark img { flex-shrink: 0; width: 24px; height: 24px; margin: 3px; }
.nav-links { display: flex; align-items: center; gap: 24px; margin-left: auto; font-size: 12px; }
.nav-launch { border: 1px solid var(--border); padding: 9px 12px; font-size: 12px; white-space: nowrap; transition: border-color 180ms; }
.nav-launch:hover { border-color: var(--cyan); text-decoration: none; }
.nav-launch span { margin-left: 12px; }
.landing-hero { position: relative; display: grid; grid-template-columns: 0.9fr 1.1fr; align-items: center; gap: 56px; padding: 32px var(--page-gutter); }
.hero-copy { min-width: 0; }
.landing .eyebrow { color: var(--text-dim); font-size: 11px; line-height: 1.6; letter-spacing: 0.04em; margin: 0 0 16px; }
.landing .hero-brand { color: var(--green); font-size: clamp(32px, 3.5vw, 48px); font-weight: 600; letter-spacing: -0.055em; line-height: 1.2; margin: 0 0 24px; }
#hero-title { font-size: clamp(24px, 2.6vw, 34px); margin: 0 0 24px; }
.hero-description { max-width: 40ch; margin: 0; }
.hero-description strong { font-weight: 500; }
.landing .hero-signing { color: var(--green); font-size: 12px; margin: 20px 0 0; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px 24px; margin-top: 28px; }
.landing .button-primary { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 44px; padding: 11px 16px; background: var(--green); color: var(--bg); font-size: 12px; font-weight: 600; transition: background 180ms; }
.landing .button-primary:hover { background: var(--green-dim); text-decoration: none; }
.button-text { font-size: 12px; }
.button-text span { margin-left: 8px; }
.landing .hero-footnote { color: var(--text-dim); font-size: 11px; margin: 16px 0 0; }
.hero-footnote { max-width: 44ch; }
.section-wrap { width: min(var(--page-width), calc(100% - 48px)); margin-inline: auto; }
.section-wrap[id] { scroll-margin-top: 24px; }
.flow-section { border-top: 1px solid var(--border); padding-block: 48px; }
.section-intro { display: flex; align-items: baseline; justify-content: space-between; gap: 32px; margin-bottom: 28px; }
.section-intro h2 { margin: 0; }
.section-intro .eyebrow { margin: 0; }
.flow-controls { display: grid; grid-template-columns: repeat(4, 1fr); }
.flow-controls button { border: 0; border-block: 1px solid var(--border); background: transparent; text-align: left; color: var(--text); padding: 16px 12px; font: inherit; font-size: 13px; transition: color 180ms, background 180ms, border-color 180ms; }
.flow-controls button > span:first-child { font-size: 11px; margin-right: 12px; color: var(--text-dim); }
.flow-controls button:hover { color: var(--cyan); background: var(--bg-block); }
.flow-controls button[aria-pressed="true"] { background: var(--bg-block); color: var(--green); border-top-color: var(--green); }
.flow-controls button[aria-pressed="true"] > span:first-child { color: var(--green); }
.flow-arrow { float: right; opacity: 0; }
.flow-controls button[aria-pressed="true"] .flow-arrow { opacity: 1; }
.flow-diagram { padding: 24px 12px 0; color: var(--cyan); font-size: 12px; overflow-x: auto; white-space: nowrap; }
.flow-description { display: grid; grid-template-columns: 1fr 1.5fr; gap: 48px; padding: 20px 12px 0; min-height: 136px; }
.flow-description h3 { font-size: 15px; }
.flow-description p { font-size: 13px; margin: 0; }
.permission-section { display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; border-top: 1px solid var(--border); padding-block: 56px; }
.permission-copy > p:not(.eyebrow) { max-width: 44ch; font-size: 13px; }
.inline-link { display: inline-block; font-size: 12px; margin-top: 12px; }
.inline-link span { margin-left: 12px; }
.permission-list { margin: 0; }
.permission-list > div { border-top: 1px solid var(--border); padding: 20px 0; }
.permission-list > div:first-child { padding-top: 0; border-top: 0; }
.permission-list > div:last-child { padding-bottom: 0; }
.permission-list dt { color: var(--green); font-size: 14px; }
.permission-list dt span { margin-right: 12px; font-size: 11px; }
.permission-list dd { margin: 8px 0 0 38px; color: var(--text); font-size: 13px; }
.execution-section { border-top: 1px solid var(--border); padding-block: 48px 32px; }
.execution-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; margin-top: 32px; }
.execution-columns article { border-top: 1px solid var(--border); padding-top: 20px; }
.execution-columns h3 { margin: 16px 0 12px; }
.execution-columns p { font-size: 13px; max-width: 50ch; margin: 0; }
.text-mark { font-size: 18px; color: var(--green); }
.coverage-line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px 24px; font-size: 11px; border-top: 1px solid var(--border); padding-top: 20px; margin: 32px 0 0; }
.coverage-line a { margin-left: auto; }
.developer-section { display: grid; grid-template-columns: 1fr 1.4fr; gap: 32px 64px; border-top: 1px solid var(--border); padding-block: 48px; }
.developer-copy > p:not(.eyebrow) { max-width: 40ch; font-size: 13px; }
.developer-links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; font-size: 12px; }
.terminal { background: var(--bg-block); border: 1px solid var(--border); align-self: center; min-width: 0; overflow: hidden; }
.terminal-bar { padding: 12px 16px; border-bottom: 1px solid var(--border); color: var(--text-dim); font-size: 11px; }
.terminal pre { padding: 20px; overflow-x: auto; font-size: 12px; line-height: 1.9; }
.terminal-prompt { color: var(--green); }
.terminal p { border-top: 1px solid var(--border); padding: 12px 20px; margin: 0; font-size: 11px; }
.terminal pre code { color: var(--text); }
.terminal p code { color: var(--cyan); }
.agent-handoff { grid-column: 1 / -1; border-block: 1px solid var(--border); }
.agent-handoff summary { cursor: pointer; padding: 18px 0; font-size: 13px; list-style: none; transition: color 180ms; }
.agent-handoff summary:hover { color: var(--cyan); }
.agent-handoff summary:focus-visible { outline: 2px solid var(--green); outline-offset: 4px; }
.agent-handoff summary::-webkit-details-marker { display: none; }
.agent-handoff summary span { float: right; color: var(--green); }
.agent-handoff[open] summary span { transform: rotate(45deg); }
.handoff-content { padding-bottom: 20px; }
.handoff-content pre { font-size: 12px; color: var(--text); }
.handoff-content h3 { font-size: 14px; }
#copy-btn { font-size: 12px; min-height: 44px; }
.closing-section { padding-block: 32px 64px; }
.closing-section h2 { font-size: 28px; }
.closing-section .button-primary { margin-top: 8px; }
.landing-footer { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; border-top: 1px solid var(--border); padding-block: 24px; }
.landing-footer p { color: var(--text-dim); font-size: 11px; }
.footer-legal { width: 100%; letter-spacing: 0.04em; }
.landing-footer > div { display: flex; flex-wrap: wrap; gap: 20px; margin-left: auto; font-size: 11px; }
.terminal-mark { position: relative; display: inline-block; width: 24px; height: 24px; margin: 3px; flex-shrink: 0; }
.wordmark .terminal-mark img { display: block; margin: 0; }
.terminal-mark::after { content: ''; position: absolute; left: 59.375%; top: 65.625%; width: 23.4375%; height: 7.8125%; background: var(--bg); opacity: 0; animation: terminal-cursor 1.1s steps(1, end) infinite; animation-play-state: paused; }
.landing[data-motion="playing"] .terminal-mark::after { animation-play-state: running; }
@keyframes terminal-cursor { 0%, 100% { opacity: 0; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: no-preference) {
  .hero-copy { animation: hero-enter 500ms ease-out both; }
  @keyframes hero-enter { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
}
@media (max-width: 1050px) {
  .landing-nav { gap: 20px; }
  .nav-links { gap: 16px; }
  .landing-hero { gap: 32px; }
  .permission-section, .developer-section { gap: 32px; }
  .landing-footer > div { width: 100%; margin-left: 0; }
}
@media (max-width: 900px) {
  .landing-nav { flex-wrap: wrap; justify-content: space-between; padding-block: 14px 8px; gap: 12px; }
  .nav-launch { margin-left: auto; }
  .nav-links { order: 3; width: 100%; margin: 0; justify-content: space-between; gap: 12px; }
  .nav-links a { display: inline-flex; align-items: center; min-height: 44px; }
  .landing-hero { grid-template-columns: 1fr; gap: 36px; padding-block: 36px; }
  .hero-description { max-width: 48ch; }
  .hero-actions { gap: 16px; }
  .section-intro { display: block; margin-bottom: 24px; }
  .section-intro .eyebrow { margin-bottom: 12px; }
  .flow-section, .execution-section { padding-block: 32px; }
  .flow-controls { grid-template-columns: 1fr 1fr; gap: 12px 0; }
  .flow-controls button { font-size: 12px; padding: 14px 8px; }
  .flow-controls button > span:first-child { margin-right: 8px; }
  .flow-description { grid-template-columns: 1fr; gap: 0; padding: 20px 0 0; min-height: 190px; }
  .flow-diagram { padding-inline: 0; font-size: 11px; }
  .permission-section, .developer-section { grid-template-columns: 1fr; padding-block: 36px; gap: 28px; }
  .execution-columns { grid-template-columns: 1fr; gap: 28px; margin-top: 24px; }
  .coverage-line { display: block; margin-top: 28px; }
  .coverage-line span { display: block; margin: 8px 0; }
  .terminal pre { font-size: 11px; padding: 16px; }
  .terminal p { padding: 12px 16px; }
  .closing-section { padding-block: 20px 40px; }
  .landing-footer p { margin: 0; }
  .landing-footer > div { gap: 8px 20px; }
  .landing-footer > div a { display: inline-flex; align-items: center; min-height: 44px; }
  .handoff-content .block-heading { flex-wrap: wrap; margin-bottom: 16px; }
}
@media (max-width: 380px) {
  .landing { --page-gutter: 16px; }
  .section-wrap { width: calc(100% - 32px); }
  .nav-links { font-size: 11px; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .landing *, .landing *::before, .landing *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}