/* HARU Ethereal UI — based on stitch_japan_student_support_hub */

:root {
  /* Canvas & shell */
  --canvas: #7c69d3;
  --shell-max: 480px;

  /* HARU design tokens (Ethereal + Soft Minimal) */
  --primary: #5e4bb3;
  --primary-container: #7764ce;
  --on-primary: #ffffff;
  --on-primary-container: #fffbff;
  --primary-fixed-dim: #cabeff;

  --secondary: #4f6600;
  --secondary-container: #c8f250;
  --on-secondary-container: #546d00;

  --tertiary-fixed: #ffd8e9;
  --tertiary-fixed-dim: #f3b5d3;
  --on-tertiary-fixed: #340d24;

  --surface: #f9f9ff;
  --surface-container: #ededf3;
  --surface-container-low: #f3f3f9;
  --surface-container-high: #e7e8ee;
  --surface-bright: #f9f9ff;

  --on-surface: #191c20;
  --on-surface-variant: #484552;
  --outline: #797583;
  --outline-variant: #c9c4d4;

  --error: #ba1a1a;
  --error-container: #ffdad6;

  /* Legacy aliases for JS/components */
  --base: var(--primary);
  --base-dark: var(--primary-container);
  --base-deep: #49349c;
  --base-light: var(--on-surface-variant);
  --accent: var(--secondary-container);
  --sub: var(--tertiary-fixed-dim);
  --ink: var(--on-surface);

  --font-display: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "Manrope", "Plus Jakarta Sans", system-ui, sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 9999px;
  --site-max: var(--shell-max);
  --content-pad: 1.25rem;
  --nav-h: 72px;
  --header-h: 64px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);

  --shadow-soft: 0 8px 32px rgba(94, 75, 179, 0.08);
  --shadow-nav: 0 40px 40px -15px rgba(0, 0, 0, 0.12);
  --glass: rgba(249, 249, 255, 0.55);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  background: var(--canvas);
  color: var(--on-surface);
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  user-select: none;
}

.hidden { display: none !important; }
.flex { display: flex; }

/* ── Shell ── */
.site {
  width: 100%;
  min-height: 100dvh;
  position: relative;
  background: var(--canvas);
}

.site-shell {
  width: 100%;
  max-width: var(--shell-max);
  min-height: 100dvh;
  margin: 0 auto;
  position: relative;
  background: transparent;
  box-shadow: 0 0 80px rgba(0, 0, 0, 0.15);
}

.site-bg span {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(60px);
}
.site-bg .b1 {
  width: 260px; height: 260px;
  background: rgba(255, 255, 255, 0.08);
  top: 5%; right: -10%;
}
.site-bg .b2 {
  width: 320px; height: 320px;
  background: rgba(243, 181, 211, 0.15);
  bottom: 25%; left: -20%;
}
.site-bg .b3 {
  width: 180px; height: 180px;
  background: rgba(200, 242, 80, 0.1);
  top: 40%; left: 50%;
}

/* ── Glass & cards ── */
.glass-header {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.glass-chip {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.soft-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(94, 75, 179, 0.06);
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(0.75rem + var(--safe-top)) var(--content-pad) 0.75rem;
}

.header-brand { display: flex; align-items: center; gap: 0.65rem; }

.haru-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--primary-container);
  color: var(--on-primary);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.haru-avatar .material-symbols-outlined { font-size: 20px; }
.agent-face-letter { font-family: var(--font-display); font-weight: 700; font-size: 1rem; }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--primary);
  line-height: 1.15;
}
.brand-name span {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  letter-spacing: 0.04em;
}

.header-actions { display: flex; align-items: center; gap: 0.5rem; }

.school-pill {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  background: var(--tertiary-fixed-dim);
  color: var(--on-tertiary-fixed);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lang-select {
  font-family: inherit;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border: none;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.25);
  color: var(--primary);
  cursor: pointer;
}

/* ── Main views ── */
.site-main {
  flex: 1;
  position: relative;
  z-index: 1;
  padding-bottom: calc(var(--nav-h) + var(--safe-bottom) + 1rem);
}

.haru-view {
  display: none;
  padding: 0.5rem var(--content-pad) 1.25rem;
}
.haru-view.active { display: block; }

/* ── Onboarding ── */
.onboard-section {
  min-height: 100dvh;
  padding: calc(1rem + var(--safe-top)) var(--content-pad) calc(2rem + var(--safe-bottom));
  position: relative;
  z-index: 2;
}

.onboard-section.onboard-edit-mode {
  position: fixed;
  inset: 0;
  z-index: 100;
  overflow-y: auto;
  background: var(--canvas);
}

.onboard-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.onboard-brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  color: #fff;
  letter-spacing: -0.03em;
}
.onboard-brand-icon { font-size: 1.5rem; }

.onboard-card {
  padding: 1.5rem;
  background: var(--surface);
  border-radius: var(--radius-xl);
}

.onboard-hero { margin-bottom: 1rem; }

.onboard-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--on-surface);
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.onboard-sub {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  line-height: 1.55;
}

.hint-box {
  display: flex;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
}
.hint-box strong {
  display: block;
  color: var(--primary);
  margin-bottom: 0.2rem;
  font-size: 0.8rem;
}
.hint-icon { color: var(--primary); flex-shrink: 0; font-size: 20px; }

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.field-full { grid-column: 1 / -1; }

.field label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: 0.35rem;
  letter-spacing: 0.02em;
}

.haru-input {
  width: 100%;
  font-family: inherit;
  font-size: 0.875rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  background: var(--surface-container-low);
  color: var(--on-surface);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.haru-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(94, 75, 179, 0.15);
}

.task-check-scroll {
  max-height: 200px;
  overflow-y: auto;
  padding: 0.5rem;
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
}

.onboard-task-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.5rem 0.35rem;
  font-size: 0.8rem;
  color: var(--on-surface);
  cursor: pointer;
}
.onboard-task-item input { margin-top: 0.15rem; accent-color: var(--primary); }

.onboard-cancel { width: 100%; margin-top: 0.65rem; }

/* ── Buttons ── */
.btn-main {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.85rem 1.25rem;
  border: none;
  border-radius: var(--radius-md);
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  cursor: pointer;
  transition: transform 0.15s, opacity 0.15s;
  width: 100%;
}
.btn-main:active { transform: scale(0.97); }

.btn-pill { border-radius: var(--radius-pill); }
.btn-pill-sm {
  font-size: 0.75rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  width: auto;
}

.btn-secondary {
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.6rem 1rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  background: var(--surface-container);
  color: var(--primary);
  cursor: pointer;
  transition: transform 0.15s;
}
.btn-secondary:active { transform: scale(0.97); }

.btn-ghost-sm {
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--on-surface-variant);
  cursor: pointer;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--surface-container);
  color: var(--primary);
  cursor: pointer;
  transition: transform 0.15s, background 0.15s;
}
.btn-icon:active { transform: scale(0.92); }

.btn-accent-sm {
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--primary-container);
  color: var(--on-primary);
  cursor: pointer;
}

.btn-sub-sm {
  font-family: inherit;
  font-size: 0.75rem;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--tertiary-fixed);
  color: var(--on-tertiary-fixed);
  cursor: pointer;
}

/* ── Stage: status pills ── */
.status-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-pill);
  color: #fff;
}
.status-pill .pill-icon { font-size: 16px; }

/* ── Hero status card ── */
.status-hero,
.progress-card {
  background: var(--tertiary-fixed-dim);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--on-tertiary-fixed);
  box-shadow: var(--shadow-soft);
}

.status-hero-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
  line-height: 1.25;
}

/* AI-generated mission statement under the hero title */
.status-hero-mission {
  font-size: 0.82rem;
  font-weight: 400;
  line-height: 1.55;
  color: var(--on-tertiary-fixed);
  opacity: 0.82;
  margin-top: -0.35rem;
  margin-bottom: 0.75rem;
  font-style: italic;
}
.status-hero-mission.hidden { display: none; }

.status-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-pill);
  padding: 0.4rem 0.85rem;
  font-size: 0.7rem;
  font-weight: 600;
  margin-bottom: 1rem;
}
.status-hero-badge .material-symbols-outlined { font-size: 16px; }

.progress-card-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.progress-ring {
  position: relative;
  width: 52px; height: 52px;
  flex-shrink: 0;
}

.progress-ring-svg {
  width: 100%; height: 100%;
  transform: rotate(-90deg);
}

.progress-ring-track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.25);
  stroke-width: 4;
}

.progress-ring-fill {
  fill: none;
  stroke: var(--secondary-container);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 125.6;
  stroke-dashoffset: calc(125.6 - (125.6 * var(--progress, 0) / 100));
  transition: stroke-dashoffset 0.4s ease;
}

.progress-num {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--on-tertiary-fixed);
}
.progress-num small { font-size: 0.55rem; opacity: 0.8; }

.progress-text h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}
.progress-text p {
  font-size: 0.75rem;
  opacity: 0.85;
  margin-bottom: 0.5rem;
}

.progress-bar-wrap {
  height: 6px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--secondary-container);
  border-radius: var(--radius-pill);
  transition: width 0.4s ease;
}

.roadmap-branch-summary {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
}

/* ── Journey steps ── */
.journey-section { margin-bottom: 1.25rem; }

.section-eyebrow {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 0.75rem;
  padding-left: 0.35rem;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--on-surface);
}

.journey-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.journey-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  font-family: inherit;
}

.journey-step-circle {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.5);
  position: relative;
  transition: transform 0.2s, background 0.2s;
}
.journey-step-circle .material-symbols-outlined { font-size: 24px; }

.journey-step.done .journey-step-circle {
  background: #fff;
  color: var(--primary);
}
.journey-step.done .journey-step-check {
  position: absolute;
  top: -4px; right: -4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--secondary-container);
  border: 3px solid var(--canvas);
  display: grid;
  place-items: center;
}
.journey-step.done .journey-step-check .material-symbols-outlined {
  font-size: 10px;
  color: var(--on-secondary-container);
  font-variation-settings: 'FILL' 1;
}

.journey-step.active .journey-step-circle {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  transform: scale(1.08);
  box-shadow: 0 0 0 4px rgba(200, 242, 80, 0.25);
}

.journey-step-label {
  font-size: 0.6rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.2;
  max-width: 72px;
}
.journey-step.active .journey-step-label {
  color: var(--secondary-container);
  font-weight: 700;
}

/* ── Roadmap block ── */
.roadmap-block {
  padding: 1rem;
  margin-bottom: 1rem;
}

.roadmap-block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.65rem;
}

.roadmap-canvas-wrap {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  border-radius: var(--radius-md);
  background: var(--surface-container-low);
  -webkit-overflow-scrolling: touch;
}
.roadmap-canvas-wrap canvas { display: block; }

.roadmap-fs-exit { margin-top: 0.75rem; }

.roadmap-block.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 200;
  max-width: none;
  border-radius: 0;
  margin: 0;
  padding: 1rem;
  background: var(--surface);
  display: flex;
  flex-direction: column;
}
.roadmap-block.is-fullscreen .roadmap-canvas-wrap {
  flex: 1;
  min-height: 0;
}
.roadmap-block.is-fullscreen .roadmap-fs-btn { display: none; }

body.roadmap-fs-on .site-header,
body.roadmap-fs-on .bottom-nav,
body.roadmap-fs-on .status-pills,
body.roadmap-fs-on .status-hero,
body.roadmap-fs-on .journey-section,
body.roadmap-fs-on .roadmap-branch-summary,
body.roadmap-fs-on .companion-band,
body.roadmap-fs-on .mission-card,
body.roadmap-fs-on .stage-actions,
body.roadmap-fs-on .stage-footer,
body.roadmap-fs-on #view-stage > .section-eyebrow { display: none !important; }
body.roadmap-fs-on .site-main { padding-bottom: 0; }

/* ── Companion band ── */
.companion-band {
  display: flex;
  gap: 0.85rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

.companion-avatar { flex-shrink: 0; }

.companion-body { flex: 1; min-width: 0; }

.companion-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.companion-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.companion-speech {
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  line-height: 1.55;
  margin-bottom: 0.65rem;
}
.companion-speech p { margin-bottom: 0.35rem; }

.action-area { margin-top: 0.5rem; }
.action-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.problem-area { margin-top: 0.65rem; }
.problem-area textarea { margin-bottom: 0.5rem; }

/* ── Mission card ── */
.mission-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
  cursor: pointer;
  transition: transform 0.15s;
}
.mission-card:active { transform: scale(0.98); }

.mission-icon-wrap {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--primary-container);
  color: var(--on-primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.mission-icon { font-size: 22px; }

.mission-body { flex: 1; min-width: 0; }
.mission-body h3 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: 0.2rem;
}
.mission-body p {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  line-height: 1.4;
}

.chevron { color: var(--outline); font-size: 22px; }

/* ── Stage actions ── */
.stage-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.btn-action-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 1rem 0.75rem;
  border: none;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s;
  text-align: center;
  line-height: 1.3;
}
.btn-action-card .material-symbols-outlined { font-size: 24px; }
.btn-action-card:active { transform: scale(0.96); }
.btn-action-card.alt {
  background: linear-gradient(145deg, rgba(243, 181, 211, 0.95), rgba(184, 154, 232, 0.85));
  color: #2d1b4e;
  border: 1px solid rgba(94, 75, 179, 0.15);
  box-shadow: 0 6px 18px rgba(94, 75, 179, 0.12);
}
.btn-action-card.alt .material-symbols-outlined {
  width: 2.2rem;
  height: 2.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
}

.stage-footer {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.45;
}
.footer-icon { font-size: 18px; flex-shrink: 0; opacity: 0.85; }

/* ── Talk / Chat ── */
.talk-view { padding: 0; display: none; flex-direction: column; }
.haru-view.talk-view.active {
  display: flex;
  height: calc(100dvh - var(--header-h) - var(--nav-h) - var(--safe-top) - var(--safe-bottom) - 0.5rem);
  min-height: 400px;
}

.talk-header-inline,
.talk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem var(--content-pad);
  flex-shrink: 0;
}

.glass-header-inline {
  background: var(--glass);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(94, 75, 179, 0.08);
}

.talk-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.talk-status {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.15rem;
}
.talk-status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--secondary-container);
}
.talk-status-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--on-surface-variant);
}

.chat-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--surface);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  overflow: hidden;
}

.chat-window,
#chatWindow {
  flex: 1;
  overflow-y: auto;
  padding: 1rem var(--content-pad);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  scrollbar-width: none;
}
#chatWindow::-webkit-scrollbar { display: none; }

.chat-row {
  display: flex;
  flex-direction: column;
  max-width: 88%;
}
.chat-row.user { align-self: flex-end; align-items: flex-end; }
.chat-row.model { align-self: flex-start; align-items: flex-start; }

.chat-meta {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: 0.3rem;
  padding: 0 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.chat-meta-avatar {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--primary-container);
  color: var(--on-primary);
  display: grid;
  place-items: center;
}
.chat-meta-avatar .material-symbols-outlined { font-size: 12px; }

.bubble {
  padding: 0.85rem 1.1rem;
  font-size: 0.875rem;
  line-height: 1.55;
  max-width: 100%;
  word-break: break-word;
}

.bubble-ai {
  background: var(--surface);
  color: var(--on-surface);
  border-radius: var(--radius-xl) var(--radius-xl) var(--radius-xl) var(--radius-sm);
  border: 1px solid rgba(94, 75, 179, 0.08);
  box-shadow: var(--shadow-soft);
}

.bubble-user {
  background: var(--primary-container);
  color: var(--on-primary-container);
  border-radius: var(--radius-xl) var(--radius-xl) var(--radius-sm) var(--radius-xl);
}

.chat-compose-wrap {
  flex-shrink: 0;
  padding: 0.65rem var(--content-pad) calc(0.65rem + var(--safe-bottom));
  border-top: 1px solid var(--outline-variant);
}

.glass-footer {
  background: var(--glass);
  backdrop-filter: blur(16px);
}

.chips-bar {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: none;
}
.chips-bar::-webkit-scrollbar { display: none; }

.chat-compose {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--surface-container);
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.45rem 0.35rem 0.35rem;
  border: 1px solid var(--outline-variant);
}

.chat-input,
#chatInput {
  flex: 1;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.875rem;
  padding: 0.5rem 0.35rem;
  color: var(--on-surface);
  min-width: 0;
}
.chat-input:focus, #chatInput:focus { outline: none; }

.compose-btn {
  width: 38px; height: 38px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--on-surface-variant);
  display: grid;
  place-items: center;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}
.compose-btn .material-symbols-outlined { font-size: 22px; }
.compose-btn.send {
  background: var(--primary-container);
  color: var(--on-primary);
}
.compose-btn:active { transform: scale(0.92); }

.mic-dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--error);
  animation: pulse 1s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

#chatImagePreview {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.5rem 0;
}

/* ── Profile ── */
.profile-view { padding-top: 0.5rem; }

.profile-hero { margin-bottom: 1rem; }

.profile-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.profile-sub {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.2rem;
}

.profile-card {
  padding: 1.15rem;
  margin-bottom: 0.85rem;
}

.profile-api-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  display: block;
  margin-bottom: 0.5rem;
}

.api-key-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.65rem;
}
.api-key-badge--ok { background: #d6e7d2; color: #536252; }
.api-key-badge--warn { background: var(--tertiary-fixed); color: var(--on-tertiary-fixed); }
.api-key-badge--missing { background: var(--surface-container-high); color: var(--on-surface-variant); }
.api-key-badge--mock { background: var(--primary-fixed-dim); color: var(--primary); }

.profile-api-input { margin-bottom: 0.65rem; }

.profile-api-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.5rem;
}

.profile-api-feedback {
  font-size: 0.75rem;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
}
.profile-api-feedback.ok { background: #d6e7d2; color: #536252; }
.profile-api-feedback.err { background: var(--error-container); color: var(--error); }

.profile-api-hint {
  font-size: 0.7rem;
  color: var(--on-surface-variant);
}

.profile-settings-list { padding: 0.35rem 0; }

.profile-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--outline-variant);
}
.profile-row:last-child { border-bottom: none; }

.profile-row-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface);
}
.profile-row-label .material-symbols-outlined {
  font-size: 20px;
  color: var(--primary);
}

/* ── Bottom nav (floating pill) ── */
.bottom-nav {
  position: fixed;
  bottom: calc(1rem + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 2.5rem);
  max-width: calc(var(--shell-max) - 2.5rem);
  z-index: 40;
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 0.35rem;
  border-radius: var(--radius-pill);
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-nav);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 0.55rem 0.35rem;
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
  font-family: inherit;
}
.nav-item .nav-icon { font-size: 24px; }
.nav-item .nav-label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.nav-item.on {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
}
.nav-item.on .nav-icon {
  font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 24;
}
.nav-item:active { transform: scale(0.94); }

/* ── Sheets ── */
.sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(25, 28, 32, 0.45);
  z-index: 80;
  backdrop-filter: blur(4px);
}

.sheet {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 100%;
  max-width: var(--shell-max);
  max-height: 88dvh;
  background: var(--surface);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  z-index: 90;
  display: flex;
  flex-direction: column;
  box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.15);
}

.sheet-handle {
  width: 40px; height: 4px;
  background: var(--outline-variant);
  border-radius: var(--radius-pill);
  margin: 0.65rem auto 0;
  flex-shrink: 0;
}

.sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1.15rem;
  flex-shrink: 0;
}

.sheet-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--on-surface);
}

.sheet-close {
  width: 36px; height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--surface-container);
  color: var(--on-surface-variant);
  display: grid;
  place-items: center;
  cursor: pointer;
}

.sheet-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 1.15rem 1.5rem;
}

.task-sheet {
  max-height: 92dvh;
}

.task-sheet-body {
  padding-bottom: calc(1.5rem + var(--safe-bottom));
}

.task-sheet-detail-title {
  display: none;
}

body.sheet-open {
  overflow: hidden;
}

.task-detail-panel {
  margin-top: 0.75rem;
  padding: 1rem;
}
.task-detail-panel-head {
  margin-bottom: 0.65rem;
}
.inline-map-panel {
  margin-top: 0.75rem;
  padding: 1rem;
}
.inline-map-frame {
  height: 220px;
  margin-top: 0.35rem;
}
.pdf-viewer-panel {
  margin-top: 0.75rem;
  padding: 0;
  overflow: hidden;
}
.pdf-viewer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(94, 75, 179, 0.1);
}
.pdf-viewer-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.pdf-viewer-frame {
  width: 100%;
  height: min(70vh, 520px);
  border: none;
  background: #f5f5f5;
}

.task-detail-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--on-surface);
}

.task-detail-summary {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  line-height: 1.55;
  margin-bottom: 0.65rem;
}

.task-detail-empty { text-align: center; padding: 2rem 0; }

.task-detail-meta {
  font-size: 0.7rem;
  color: var(--outline);
  margin-bottom: 0.5rem;
}

.task-detail-lock {
  font-size: 0.8rem;
  color: var(--error);
  background: var(--error-container);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.65rem;
}

.task-detail-tips {
  list-style: none;
  margin: 0.75rem 0;
  padding: 0;
}
.task-detail-tips li {
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  padding: 0.4rem 0 0.4rem 1.25rem;
  position: relative;
}
.task-detail-tips li::before {
  content: "•";
  position: absolute;
  left: 0.35rem;
  color: var(--primary);
}

/* AI-generated steps inside task detail */
.ai-steps-label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.85rem;
  margin-bottom: 0.4rem;
}
.ai-steps-list {
  margin: 0 0 0.75rem 1.1rem;
  padding: 0;
}
.ai-steps-list li {
  font-size: 0.82rem;
  color: var(--on-surface);
  line-height: 1.5;
  padding: 0.25rem 0;
}

.task-detail-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0.75rem 0;
}

.map-frame-wrap {
  width: 100%;
  height: 280px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-container);
}
.map-frame-wrap iframe { width: 100%; height: 100%; border: none; }

.chat-map-block {
  margin-top: 0.5rem;
  padding: 0.65rem;
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
  border: 1px solid rgba(94, 75, 179, 0.12);
}
.chat-map-label {
  font-size: 0.72rem;
  color: var(--on-surface-variant);
  margin-bottom: 0.45rem;
}
.chat-map-frame-wrap {
  width: 100%;
  height: 200px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-container);
}
.chat-map-frame-wrap iframe { width: 100%; height: 100%; border: none; }
.chat-map-open-link {
  display: inline-block;
  margin-top: 0.45rem;
  font-size: 0.68rem;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.chat-mermaid-block {
  margin-top: 0.5rem;
  padding: 0.65rem;
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
  border: 1px solid rgba(94, 75, 179, 0.12);
}
.mermaid-diagram {
  overflow-x: auto;
  min-height: 2.5rem;
}
.mermaid-diagram.mermaid-loading::before {
  content: '';
  display: block;
  width: 1.25rem;
  height: 1.25rem;
  margin: 0.5rem auto;
  border: 2px solid rgba(94, 75, 179, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: haru-spin 0.8s linear infinite;
}
@keyframes haru-spin {
  to { transform: rotate(360deg); }
}
.mermaid-diagram svg {
  max-width: 100%;
  height: auto;
}
.mermaid-error {
  font-size: 0.72rem;
  color: var(--error);
  white-space: pre-wrap;
  margin: 0;
}
.chat-mermaid-actions {
  margin-top: 0.55rem;
  display: flex;
  justify-content: flex-end;
}

.services-health-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.35rem;
}
.service-health-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  color: var(--on-surface-variant);
}
.service-health-badge {
  font-size: 0.62rem;
  font-weight: 600;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
}
.service-health-badge--ok {
  background: rgba(94, 75, 179, 0.12);
  color: var(--primary);
}
.service-health-badge--off {
  background: var(--surface-container-high);
  color: var(--outline);
}

.talk-header-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}
.talk-close-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.quiz-question-block {
  margin: 0.5rem 0;
  padding: 0.85rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(119, 100, 206, 0.12), rgba(200, 242, 80, 0.08));
  border: 1px solid rgba(94, 75, 179, 0.18);
  box-shadow: 0 8px 24px rgba(94, 75, 179, 0.08);
}
.quiz-progress {
  margin-bottom: 0.55rem;
}
.quiz-progress-badge {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(200, 242, 80, 0.35);
  color: #2d1b4e;
}
.quiz-prompt {
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--on-surface);
  margin-bottom: 0.65rem;
}
.quiz-choices {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.quiz-choice-btn {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  text-align: left;
  padding: 0.65rem 0.7rem;
  border: 1px solid rgba(94, 75, 179, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.72);
  color: var(--on-surface);
  font-family: inherit;
  font-size: 0.76rem;
  line-height: 1.35;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.quiz-choice-btn:hover {
  border-color: rgba(94, 75, 179, 0.35);
  box-shadow: 0 4px 14px rgba(94, 75, 179, 0.1);
}
.quiz-choice-btn:active {
  transform: scale(0.98);
  background: rgba(200, 242, 80, 0.2);
}
.quiz-choice-btn:disabled {
  opacity: 0.55;
  cursor: default;
}
.quiz-choice-badge {
  flex-shrink: 0;
  width: 1.55rem;
  height: 1.55rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 800;
}
.quiz-choice-text {
  flex: 1;
  min-width: 0;
}
.quiz-choice-arrow {
  flex-shrink: 0;
  font-size: 1.1rem;
  color: var(--primary);
  opacity: 0.7;
}

.ai-question-block {
  margin-top: 0.5rem;
  padding: 0.65rem;
  background: rgba(119, 100, 206, 0.08);
  border-radius: var(--radius-md);
  border: 1px solid rgba(94, 75, 179, 0.2);
}
.ai-question-prompt {
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--on-surface);
}
.ai-question-choices { display: flex; flex-direction: column; gap: 0.35rem; }
.ai-question-choice-btn {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
  text-align: left;
  padding: 0.45rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(94, 75, 179, 0.2);
  background: var(--surface);
  color: var(--on-surface);
  font-size: 0.72rem;
  cursor: pointer;
}
.ai-question-choice-btn:active { transform: scale(0.98); background: rgba(200, 242, 80, 0.15); }
.ai-question-letter { font-weight: 700; color: var(--primary); flex-shrink: 0; }

.analysis-result {
  margin-top: 0.85rem;
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  max-height: 200px;
  overflow-y: auto;
  padding: 0.75rem;
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
}

/* ── Loading overlay ── */
#globalLoadingOverlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(124, 105, 211, 0.65);
  backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.loading-card {
  padding: 2rem 1.5rem;
  text-align: center;
  max-width: 300px;
  width: 100%;
}

.loading-face { margin-bottom: 1rem; }
.loading-spark {
  font-size: 48px;
  color: var(--primary);
  animation: float 2s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.loading-text {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 1rem;
}

/* ── Guide walkthrough ── */
#guideWalkthroughPanel {
  position: fixed;
  inset: 0;
  z-index: 250;
  display: grid;
  place-items: end center;
}

.guide-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(25, 28, 32, 0.5);
}

.guide-sheet {
  position: relative;
  width: 100%;
  max-width: var(--shell-max);
  max-height: 85dvh;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  display: flex;
  flex-direction: column;
  z-index: 1;
}

.guide-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.15rem 0.5rem;
}
.guide-sheet-header h2 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.guide-sheet-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 1.15rem;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--on-surface-variant);
}

.guide-sheet-footer {
  display: flex;
  gap: 0.65rem;
  padding: 1rem 1.15rem calc(1rem + var(--safe-bottom));
}

/* ── Markdown ── */
.markdown-content a { color: var(--primary); }
.markdown-content ul, .markdown-content ol { padding-left: 1.25rem; margin: 0.35rem 0; }
.markdown-content p { margin-bottom: 0.35rem; }

/* ── Branch choices in task sheet ── */
.branch-choice-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0.65rem 0;
}
.branch-choice-btn {
  font-family: inherit;
  font-size: 0.8rem;
  text-align: left;
  padding: 0.75rem 1rem;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  background: var(--surface-container-low);
  color: var(--on-surface);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.branch-choice-btn:hover,
.branch-choice-btn.selected {
  border-color: var(--primary);
  background: var(--primary-fixed-dim);
}

/* ── Responsive ── */
@media (min-width: 520px) {
  body { background: #6a58c4; }
  .site-shell { min-height: 100dvh; }
}

@media (max-width: 380px) {
  .journey-steps { grid-template-columns: repeat(4, 1fr); gap: 0.25rem; }
  .journey-step-circle { width: 48px; height: 48px; }
  .stage-actions { grid-template-columns: 1fr; }
}