/* ============================================================
   Betel Nut Village — Main Styles
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--text-body);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

img[draggable="false"] {
  -webkit-user-drag: none;
  user-select: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea {
  font-family: var(--font-body);
  font-size: var(--text-body); /* Prevents iOS auto-zoom */
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── App Shell ────────────────────────────────────────────── */
#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Navigation ───────────────────────────────────────────── */
nav#main-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-bg);
  box-shadow: var(--shadow-nav);
  height: var(--nav-height-mobile);
  display: flex;
  align-items: stretch;
}

nav#main-nav .nav-inner {
  display: flex;
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.nav-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: var(--touch-target);
  padding: 6px 4px;
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
  font-family: var(--font-body);
  border: none;
  background: transparent;
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

.nav-tab .nav-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-tab .nav-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.nav-tab.active {
  color: var(--color-primary);
}

.nav-tab.active .nav-icon svg {
  fill: var(--color-primary);
  stroke: var(--color-primary);
}

.nav-tab:not(.active) .nav-icon svg {
  fill: none;
  stroke: var(--color-text-secondary);
}

/* ── Main Content ─────────────────────────────────────────── */
main#content {
  flex: 1;
  padding-bottom: var(--nav-height-mobile);
}

/* ── Tab Views ────────────────────────────────────────────── */
.tab-view {
  display: none !important;
  opacity: 0;
  animation: none;
}

.tab-view.active {
  display: block !important;
  animation: fadeIn var(--transition-base) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Explore Tab ──────────────────────────────────────────── */
#tab-explore {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
}

.explore-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.logo-mark {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-bg);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-display);
}

.explore-header-text {
  flex: 1;
}

.explore-title {
  font-family: var(--font-display);
  font-size: var(--text-page);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.explore-subtitle {
  font-size: var(--text-secondary);
  color: var(--color-text-secondary);
  margin-top: 4px;
  line-height: 1.5;
}

.artifacts-counter {
  font-size: var(--text-secondary);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.artifacts-counter strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* Artifact Grid */
.artifact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.artifact-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow var(--transition-base), border-left var(--transition-fast);
  border-left: 4px solid transparent;
  position: relative;
}

.artifact-card:hover {
  border-left-color: var(--color-primary);
  box-shadow: var(--shadow-card-hover);
}

.artifact-card:hover .card-explore-link {
  color: var(--color-primary-light);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.card-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f0ede8 0%, #e8e4de 100%);
}

.card-image-placeholder svg {
  width: 40px;
  height: 40px;
  opacity: 0.3;
  color: var(--color-text-secondary);
}

.card-body {
  padding: var(--space-md);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-card-title);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
  line-height: 1.3;
}

.card-subtitle {
  font-size: var(--text-secondary);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.card-explore-link {
  font-size: var(--text-secondary);
  color: var(--color-primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition-fast);
}

/* ── Journey Map Tab ──────────────────────────────────────── */
#tab-journey {
  flex-direction: column;
  height: calc(100vh - var(--nav-height-mobile));
}

#tab-journey.active {
  display: flex !important;
}

.journey-stats {
  text-align: center;
  font-size: var(--text-secondary);
  color: var(--color-text-secondary);
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.journey-stats span {
  display: inline-block;
  padding: 0 var(--space-sm);
}

.journey-stats span:not(:last-child) {
  border-right: 1px solid var(--color-border);
}

.journey-toggles {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.toggle-btn {
  height: var(--touch-target);
  padding: 0 var(--space-lg);
  border-radius: var(--radius-pill);
  font-size: var(--text-secondary);
  font-weight: 500;
  font-family: var(--font-body);
  border: 1.5px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toggle-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.map-container {
  flex: 1;
  background: var(--color-secondary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-md);
  min-height: 300px;
}

.map-placeholder-icon {
  width: 56px;
  height: 56px;
  opacity: 0.25;
  color: var(--color-secondary);
}

.map-placeholder-text {
  font-family: var(--font-display);
  font-size: var(--text-section);
  color: var(--color-secondary);
  opacity: 0.5;
  font-style: italic;
}

/* ── Journal Tab ──────────────────────────────────────────── */
#tab-journal {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
}

.journal-header {
  margin-bottom: var(--space-xl);
}

.journal-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-section);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.journal-header p {
  font-size: var(--text-secondary);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.journal-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: var(--text-secondary);
  font-weight: 500;
  color: var(--color-text);
}

.form-input {
  height: var(--touch-target);
  padding: 0 var(--space-md);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-body);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(161, 21, 81, 0.08);
}

.form-input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.7;
}

.btn-primary {
  height: var(--touch-target);
  padding: 0 var(--space-xl);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-size: var(--text-body);
  font-weight: 600;
  font-family: var(--font-body);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
  width: 100%;
}

.btn-primary:hover {
  background: var(--color-primary-light);
}

.journal-preview-empty {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
}

/* ── Profile Tab ──────────────────────────────────────────── */
#tab-profile {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
}

.profile-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  margin-bottom: var(--space-xl);
}

.profile-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-primary-bg);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  color: var(--color-primary);
  font-size: 28px;
  font-family: var(--font-display);
  font-weight: 700;
}

.profile-name {
  font-family: var(--font-display);
  font-size: var(--text-card-title);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.profile-since {
  font-size: var(--text-secondary);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.profile-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.stat-box {
  flex: 1;
  max-width: 90px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-sm);
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-section);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: var(--text-caption);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Activity Timeline */
.timeline-section {
  margin-bottom: var(--space-xl);
}

.timeline-section h3 {
  font-size: var(--text-secondary);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.timeline-group {
  margin-bottom: var(--space-lg);
}

.timeline-date-label {
  font-size: var(--text-caption);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-surface);
}

.timeline-icon {
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

.timeline-text {
  font-size: var(--text-secondary);
  color: var(--color-text);
  line-height: 1.5;
}

.timeline-text .tag {
  color: var(--color-secondary);
  font-style: italic;
}

/* AI Encouragement */
.ai-encouragement {
  background: var(--color-primary-bg);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--text-secondary);
  color: var(--color-text-secondary);
  font-style: italic;
  line-height: 1.6;
}

/* ── Desktop Overrides ────────────────────────────────────── */
@media (min-width: 768px) {
  nav#main-nav {
    top: 0;
    bottom: auto;
    height: var(--nav-height-desktop);
    box-shadow: 0 1px 0 var(--color-border);
  }

  .nav-tab {
    flex-direction: row;
    gap: var(--space-sm);
    font-size: var(--text-secondary);
    padding: 0 var(--space-lg);
  }

  .nav-tab .nav-label {
    font-size: var(--text-secondary);
  }

  main#content {
    padding-bottom: 0;
    padding-top: var(--nav-height-desktop);
  }

  #tab-journey {
    height: calc(100vh - var(--nav-height-desktop));
  }

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

@media (min-width: 1024px) {
  .artifact-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  #tab-explore {
    padding: var(--space-xl) var(--space-xl);
  }
}

/* ── Utility ──────────────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ── Heritage Journal Cards (live conversation data) ─────── */
.journal-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 14px var(--space-md);
  margin-bottom: 10px;
  transition: border-color var(--transition-base);
}

.journal-card:hover {
  border-color: var(--color-primary);
}

.journal-card-header {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 6px;
}

.journal-card-title {
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 2px 0;
  line-height: 1.3;
}

.journal-card-meta {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin: 0;
}

.journal-level-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: #fff;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  flex-shrink: 0;
}

.journal-card-preview {
  font-size: var(--text-secondary);
  color: var(--color-text-secondary);
  font-style: italic;
  line-height: 1.5;
  margin: 6px 0 8px;
}

.journal-signals {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 6px;
}

.journal-signal-tag {
  font-size: 0.7rem;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  padding: 2px 8px;
  border-radius: 10px;
  white-space: nowrap;
}

.journal-bridge-tag {
  font-size: 0.78rem;
  color: var(--color-secondary);
  font-weight: 600;
  margin: 4px 0 0;
}

.journal-conversation {
  margin-top: 8px;
  border-top: 1px solid var(--color-border);
  padding-top: 8px;
}

.journal-conversation summary {
  font-size: 0.8rem;
  color: var(--color-primary);
  cursor: pointer;
  font-weight: 600;
  padding: 4px 0;
  user-select: none;
}

.journal-conversation summary:hover {
  text-decoration: underline;
}

.journal-messages {
  padding: 8px 0 0;
}

.journal-msg-user,
.journal-msg-ai {
  margin-bottom: 10px;
  padding-left: 10px;
  border-left: 3px solid transparent;
}

.journal-msg-user {
  border-left-color: var(--color-primary);
}

.journal-msg-ai {
  border-left-color: var(--color-secondary);
}

.journal-msg-role {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-secondary);
  display: block;
  margin-bottom: 2px;
}

.journal-msg-text {
  font-size: var(--text-secondary);
  color: var(--color-text);
  line-height: 1.5;
  margin: 0;
}