/* SPDX-License-Identifier: AGPL-3.0-or-later */
/* Copyright (C) 2026 Alizerin Labs — https://alizerinlabs.com */

/* ---------- tokens (DESIGN.md §3) ---------- */
:root {
  --bg:          #0b0d10;
  --surface:     #14171c;
  --surface-hi:  #1b1f25;
  --border:      #242932;
  --text:        #e7eaf0;
  --text-2:      #9aa3b2;
  --text-muted:  #6b7280;
  --accent:      #6ea8fe;
  --danger:      #ff6b6b;
  --danger-fill: rgba(255, 107, 107, 0.12);
  --success:     #51d88a;
  --warning:     #ffb86b;
  --shadow-elev: 0 20px 60px -20px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 24px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

/* ---------- type scale ---------- */
.t-eyebrow   { font-family: 'JetBrains Mono', monospace; font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); }
.t-display   { font-size: 44px; line-height: 52px; font-weight: 600; letter-spacing: -0.02em; color: var(--text); }
.t-title     { font-size: 24px; line-height: 32px; font-weight: 600; color: var(--text); }
.t-card-title{ font-size: 17px; line-height: 24px; font-weight: 600; color: var(--text); }
.t-body      { font-size: 15px; line-height: 24px; font-weight: 400; color: var(--text); }
.t-caption   { font-size: 14px; line-height: 22px; font-weight: 400; color: var(--text-2); }
.t-code      { font-family: 'JetBrains Mono', monospace; font-size: 13px; line-height: 22px; font-weight: 400; }
.t-step      { font-family: 'JetBrains Mono', monospace; font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); }
.t-subtitle  { font-size: 18px; line-height: 28px; color: var(--text-2); }

/* ---------- landing ---------- */
#view-landing { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 48px; }
.landing-col { width: 640px; max-width: 100%; }
.landing-col .eyebrow { margin-bottom: 20px; }
.landing-col h1 { margin: 0 0 16px; }
.landing-col .sub { margin: 0 0 40px; max-width: 560px; }

.card-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.scenario-card {
  width: 100%; height: 200px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: border-color 150ms var(--ease-out);
  display: flex; flex-direction: column;
  text-align: left;
  color: inherit;
  font: inherit;
}
.scenario-card:hover { border-color: var(--accent); }
.scenario-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.scenario-card .icon {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text); margin-bottom: 12px;
}
.scenario-card .ctitle { margin-bottom: 6px; }
.scenario-card .hook { color: var(--text-2); font-size: 14px; line-height: 22px; }

.footer-micro {
  margin-top: 48px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: left;
}

/* ---------- scenario player ---------- */
#view-player { display: none; min-height: 100vh; flex-direction: column; }
.topbar {
  height: 56px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 24px;
  position: relative;
  flex-shrink: 0;
}
.topbar .center {
  position: absolute; left: 50%; transform: translateX(-50%);
  font-size: 15px; font-weight: 500; color: var(--text);
  white-space: nowrap;
}
.topbar .left, .topbar .right { display: flex; align-items: center; gap: 8px; }
.topbar .right { margin-left: auto; }

.ghost-btn {
  height: 32px; padding: 0 10px;
  background: transparent; color: var(--text-2);
  border: 0; border-radius: 8px;
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-size: 13px;
  cursor: pointer;
  transition: background 120ms, color 120ms;
}
.ghost-btn:hover { background: var(--surface); color: var(--text); }
.ghost-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.icon-btn { width: 32px; height: 32px; padding: 0; justify-content: center; }

.stage-wrap {
  flex: 1;
  padding: 32px 48px 0;
  display: flex; flex-direction: column;
  gap: 24px;
  min-height: 0;
}
.stages {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  flex: 1;
  min-height: 420px;
}
.stage {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  overflow: hidden;
  display: flex; flex-direction: column;
  min-height: 0;
  transition: opacity 300ms var(--ease-out);
}
.stage.dim { opacity: 0.4; }
.stage-waiting {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: var(--text-muted);
  gap: 12px;
}
.stage-waiting .icon { color: var(--text-muted); }
.stage-waiting .wlabel { font-size: 14px; color: var(--text-2); }
.stage-waiting .wsub { font-size: 12px; color: var(--text-muted); }

.caption-area {
  min-height: 64px;
  display: flex; align-items: center; justify-content: center;
  padding: 8px 0;
}
.caption {
  max-width: 720px; text-align: center;
  font-size: 16px; line-height: 26px; color: var(--text);
}

.control-bar {
  height: 72px;
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 48px;
  position: relative;
}
.control-bar::before {
  content: ''; position: absolute; left: 0; right: 0; top: -24px; height: 24px;
  background: linear-gradient(to top, var(--bg), transparent);
  pointer-events: none;
}
.control-left  { justify-self: start; }
.control-right { justify-self: end; }
.control-center { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.dots { display: flex; gap: 6px; }
.dot { width: 6px; height: 6px; border-radius: 999px; background: var(--border); transition: background 200ms; }
.dot.done    { background: var(--text); }
.dot.current { background: var(--accent); }

.btn {
  height: 36px; padding: 0 14px;
  background: transparent; color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  font: inherit; font-size: 13px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 8px;
  cursor: pointer;
  transition: background 120ms, border-color 120ms, color 120ms;
}
.btn:hover:not(:disabled) { background: var(--surface); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn.primary {
  background: var(--accent); color: #0b0d10;
  border-color: var(--accent);
}
.btn.primary:hover:not(:disabled) { filter: brightness(1.1); background: var(--accent); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* ---------- chat ---------- */
.chat { display: flex; flex-direction: column; gap: 16px; justify-content: center; flex: 1; }
.chat-row { display: flex; flex-direction: column; gap: 6px; max-width: 480px; }
.chat-row.user  { align-self: flex-end; align-items: flex-end; }
.chat-row.assistant { align-self: flex-start; align-items: flex-start; }
.chat-name { font-size: 12px; color: var(--text-2); }
.bubble {
  padding: 14px; font-size: 14px; line-height: 22px;
  border-radius: 12px;
}
.bubble.user {
  background: var(--surface-hi);
  border-bottom-right-radius: 4px;
}
.bubble.assistant {
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

/* ---------- avatar stage ---------- */
.avatar-stage { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; }
.avatar {
  width: 80px; height: 80px; border-radius: 50%;
  border: 1px solid var(--border);
  overflow: hidden;
  /* gradient shows as fallback if image fails to load */
  background: radial-gradient(circle at 30% 30%, var(--accent), transparent 70%);
}
.avatar.dev {
  background: radial-gradient(circle at 30% 30%, var(--success), transparent 70%);
}
.avatar img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.avatar-label { font-size: 14px; color: var(--text-2); }

/* ---------- browser frame ---------- */
.browser {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  flex: 1;
  display: flex; flex-direction: column;
}
.browser-chrome {
  height: 44px;
  display: flex; align-items: center;
  padding: 0 14px;
  border-bottom: 1px solid var(--border);
  gap: 14px;
}
.traffic { display: flex; gap: 6px; }
.tl { width: 11px; height: 11px; border-radius: 50%; }
.tl.r { background: #ff6b6b; }
.tl.y { background: #ffb86b; }
.tl.g { background: #51d88a; }
.urlbar {
  flex: 1;
  max-width: 420px;
  margin: 0 auto;
  background: var(--surface-hi);
  padding: 6px 10px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--text-2);
  display: flex; align-items: center; gap: 8px;
  min-width: 0;
}
.urlbar .lock { color: var(--text-muted); }
.urlbar .u-path { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.browser-body {
  flex: 1;
  padding: 24px;
  background: var(--bg);
  overflow: auto;
}
.prod-title { font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.prod-rating { font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--text-2); margin-bottom: 20px; }
.review-card {
  background: var(--surface);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 10px;
}
.review-card p { margin: 0 0 6px; font-size: 14px; line-height: 22px; color: var(--text); }
.review-meta { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--text-2); }
.buy-btn {
  margin-top: 18px;
  background: var(--accent);
  color: #0b0d10;
  border: 0;
  border-radius: 6px;
  padding: 10px 18px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}

/* ---------- registry card ---------- */
.registry-wrap { flex: 1; display: flex; align-items: center; justify-content: center; }
.reg-card {
  width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.reg-top { display: flex; gap: 14px; margin-bottom: 14px; }
.reg-logo {
  width: 40px; height: 40px;
  border-radius: 8px;
  background: rgba(110, 168, 254, 0.12);
  border: 1px solid rgba(110, 168, 254, 0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.reg-name { font-size: 18px; font-weight: 600; line-height: 1.2; }
.reg-tag  { font-size: 13px; color: var(--text-2); margin-top: 2px; }
.reg-meta { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--text-2); margin-bottom: 14px; }
.reg-desc { font-size: 14px; line-height: 22px; color: var(--text); margin-bottom: 20px; }
.reg-btn {
  width: 100%;
  height: 40px;
  background: var(--accent);
  color: #0b0d10;
  border: 0;
  border-radius: 8px;
  font: inherit; font-weight: 600; font-size: 14px;
  cursor: pointer;
}

/* ---------- source viewer ---------- */
.source {
  background: var(--surface-hi);
  border-radius: 12px;
  padding: 0;
  flex: 1;
  display: flex; flex-direction: column;
  overflow: hidden;
}
.source-head {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
}
.source-head .file { color: var(--text-2); }
.source-body {
  flex: 1;
  overflow: auto;
  padding: 16px 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 22px;
}
.src-line {
  display: flex;
  padding: 0 20px;
  white-space: pre-wrap;
  word-break: break-word;
}
/* reset padding when line numbers are present; .ln handles left spacing */
.src-line.with-ln { padding: 0; }
.ln {
  display: inline-block;
  width: 44px;
  padding: 0 12px 0 20px;
  color: var(--text-muted);
  text-align: right;
  user-select: none;
  flex-shrink: 0;
}
.src-content { flex: 1; padding-right: 20px; }

/* token colors */
.tk-tag    { color: #8fb8f5; }
.tk-attr   { color: #6ea8fe; }
.tk-str    { color: #a5d6a7; }
.tk-com    { color: #6b7280; font-style: italic; }
.tk-key    { color: #6ea8fe; }
.tk-punc   { color: var(--text-2); }
.tk-text   { color: var(--text); }

/* ---------- injection highlight ---------- */
.inj-block {
  background: var(--danger-fill);
  border-left: 2px solid var(--danger);
  animation: injPulse 1.6s ease-in-out infinite;
  margin: 4px 0;
  position: relative;
}
.inj-block .src-line { padding-left: 20px; }
.inj-block .src-line.with-ln { padding-left: 0; }
.inj-block .src-line .ln { padding-left: 18px; }

@keyframes injPulse {
  0%,100% { filter: drop-shadow(0 0 2px rgba(255,107,107,0.35)); }
  50%     { filter: drop-shadow(0 0 14px rgba(255,107,107,0.6)); }
}

/* ---------- trace terminal ---------- */
.trace {
  background: var(--bg);
  border-radius: 12px;
  padding: 20px;
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 22px;
  color: var(--text);
  overflow: auto;
  white-space: pre-wrap;
}
.trace-line { display: block; min-height: 22px; }
.trace-line .pre { color: var(--text-2); }
.trace-line.red  { color: var(--danger); }
.trace-line.red .pre { color: var(--danger); opacity: 0.85; }
.trace-line .ok  { color: var(--success); }
.caret {
  display: inline-block;
  width: 7px; height: 15px;
  background: var(--text);
  vertical-align: -2px;
  margin-left: 2px;
  animation: blink 1s steps(2, end) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- mail client ---------- */
.mail {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  flex: 1;
  display: flex; flex-direction: column;
  min-height: 0;
}
.mail-head {
  height: 40px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 14px;
  gap: 14px;
}
.mail-head .title { font-size: 13px; color: var(--text-2); }
.mail-meta {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 22px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mail-row { display: flex; gap: 10px; align-items: baseline; }
.mail-row .k { color: var(--text-2); width: 64px; flex-shrink: 0; }
.mail-row .v { color: var(--text); flex: 1; min-width: 0; word-break: break-word; }
.bcc-highlight {
  display: inline-block;
  background: var(--danger-fill);
  color: var(--danger);
  padding: 0 6px;
  border-left: 2px solid var(--danger);
  margin-left: -2px;
}
.mail-body {
  padding: 20px;
  font-size: 14px;
  line-height: 22px;
  color: var(--text);
  overflow: auto;
  flex: 1;
}
.mail-body p { margin: 0 0 10px; }
.mail-body ul { margin: 0 0 14px; padding-left: 20px; }
.mail-body li { margin-bottom: 4px; }
.debug-block {
  margin-top: 18px;
  background: var(--danger-fill);
  border-left: 2px solid var(--danger);
  padding: 14px 18px;
  border-radius: 4px;
  animation: injPulse 1.6s ease-in-out infinite;
}
.debug-block h4 {
  margin: 0 0 10px;
  font-size: 14px; font-weight: 600;
  color: var(--danger);
  letter-spacing: 0.02em;
}
.debug-block pre {
  margin: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 20px;
  color: var(--text);
  white-space: pre-wrap;
}

/* ---------- callout (takeaway) ---------- */
.callout-area {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  padding: 24px 48px;
}
.callout {
  background: var(--surface);
  border-left: 2px solid var(--danger);
  border-radius: 0 12px 12px 0;
  padding: 32px;
  max-width: 720px;
  width: 100%;
}
.callout p { margin: 0 0 14px; font-size: 16px; line-height: 26px; color: var(--text); }
.callout p:last-child { margin-bottom: 0; }
.callout .lead { font-weight: 600; color: var(--text); }

/* when takeaway active, stages shrink and dim */
.stage-wrap.takeaway .stages { min-height: 180px; }
.stage-wrap.takeaway .stage { opacity: 0.4; }

/* ---------- step transition ---------- */
.stage-inner {
  flex: 1; display: flex; flex-direction: column; min-height: 0;
  opacity: 1;
}
.stage-inner.entering {
  animation: stepIn 250ms var(--ease-out) both;
}
@keyframes stepIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- "Two weeks later" divider ---------- */
.time-divider {
  position: absolute; left: 0; right: 0; top: 50%;
  transform: translateY(-50%);
  display: flex; align-items: center; gap: 16px;
  padding: 0 48px;
  pointer-events: none;
  z-index: 5;
}
.time-divider .line { flex: 1; height: 1px; background: var(--border); }
.time-divider .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: var(--text-muted);
  letter-spacing: 0.08em; text-transform: uppercase;
  background: var(--bg);
  padding: 4px 12px;
}

@media (prefers-reduced-motion: reduce) {
  .stage-inner.entering,
  .inj-block, .debug-block {
    animation: none !important;
  }
  .caret { animation: none !important; }
}