/* ═══════════════════════════════════════════════════════════
   Psychic101 — Shared Styles (Mobile-First)
   Base styles target mobile (≤480px). Desktop enhancements
   are added via @media (min-width: ...) breakpoints.
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg: #0f0f1a;
  --surface: #1a1a2e;
  --surface2: #22223a;
  --accent: #7b68ee;
  --accent2: #9d8df1;
  --text: #e0e0e0;
  --text-dim: #8888aa;
  --success: #4ade80;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 12px;
  --content-max: 100%;
  --pad-inline: 1rem;
}

/* ─── Skip Link ────────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 999;
  font-size: 0.85rem;
  text-decoration: none;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus {
  left: 0;
}

/* ─── Focus Visible ────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

html {
  font-size: 100%; /* 16px base — respects user font-size settings */
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden; /* zero horizontal scroll */
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.5;
}

/* All images/videos constrained */
img, video, canvas { max-width: 100%; height: auto; }

/* ─── Header ───────────────────────────────────────────── */
header {
  width: 100%;
  background: var(--surface);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--surface2);
  position: sticky;
  top: 0;
  z-index: 100;
  direction: ltr;
}

header h1 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent2);
  letter-spacing: 0.5px;
}

header h1 span {
  color: var(--text-dim);
  font-weight: 400;
  font-size: 0.75rem;
}

/* ─── Navigation Button (≥48×48px tap target) ─────────── */
.nav-btn {
  background: var(--surface2);
  border: 1px solid var(--accent);
  color: var(--accent2);
  padding: 0.5rem 1rem;
  min-height: 3rem;
  min-width: 3rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}

@media (hover: hover) {
  .nav-btn:hover { background: var(--accent); color: #fff; }
}

/* ─── About Link (lightweight, no box) ─────────────────── */
.about-link {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  transition: color 0.2s;
}

@media (hover: hover) {
  .about-link:hover { color: var(--accent2); }
}

/* ─── Language Selector ────────────────────────────────── */
.lang-selector {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.lang-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-right: 0.25rem;
}

.lang-btn {
  background: var(--surface2);
  border: 1px solid var(--surface2);
  color: var(--text-dim);
  padding: 0.25rem 0.5rem;
  min-height: 2rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  transition: all 0.2s;
}

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

@media (hover: hover) {
  .lang-btn:hover { background: var(--accent2); color: #fff; }
}

/* RTL adjustments */
[dir="rtl"] .lang-label {
  margin-right: 0;
  margin-left: 0.25rem;
}

[dir="rtl"] .card ul {
  padding-left: 0;
  padding-right: 1.25rem;
}

[dir="rtl"] .steps li {
  padding-left: 0;
  padding-right: 2.5rem;
}

[dir="rtl"] .steps li::before {
  left: auto;
  right: 0;
}

[dir="rtl"] .session-item .score {
  float: left;
}

[dir="rtl"] .tag {
  margin-right: 0;
  margin-left: 0.375rem;
}

/* ─── Main Content ─────────────────────────────────────── */
main {
  width: var(--content-max);
  max-width: 45rem;
  padding: 1.5rem var(--pad-inline);
  flex: 1;
}

/* ─── Screens ──────────────────────────────────────────── */
.screen { display: none; }
.screen.active { display: block; }

/* ─── Cards ────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--surface2);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.card h2 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--accent2);
}

.card p, .card li {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-dim);
}

.card ul { padding-left: 1.25rem; }
.card li { margin-bottom: 0.25rem; }

/* ─── Target Code ──────────────────────────────────────── */
.target-code {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  padding: 2rem;
  letter-spacing: 6px;
  color: var(--accent);
  font-family: 'Courier New', monospace;
  background: var(--surface2);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  word-break: break-all;
}

/* ─── Buttons (≥48×48px tap target) ───────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  min-height: 3rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
  -webkit-tap-highlight-color: transparent;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--accent);
}
.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; width: auto; min-height: 2.5rem; }

@media (hover: hover) {
  .btn-primary:hover { background: var(--accent2); }
  .btn-secondary:hover { background: var(--accent); color: #fff; }
}

/* ─── Forms ────────────────────────────────────────────── */
textarea, input[type="text"], input[type="number"], input[type="search"] {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--surface2);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 8px;
  font-size: 1rem; /* prevents iOS zoom on focus */
  font-family: inherit;
  resize: vertical;
  transition: border-color 0.2s;
}

textarea:focus, input:focus {
  outline: none;
  border-color: var(--accent);
}

textarea { min-height: 3rem; }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0.375rem;
  font-weight: 500;
}

.field { margin-bottom: 1rem; }

/* ─── Timer ────────────────────────────────────────────── */
.timer {
  text-align: center;
  font-size: 1.75rem;
  font-family: 'Courier New', monospace;
  color: var(--accent);
  padding: 1rem;
  background: var(--surface2);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.timer-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* ─── Target Image ─────────────────────────────────────── */
.target-image {
  width: 100%;
  max-width: 100%;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  border: 2px solid var(--surface2);
}

/* ─── Feedback Grid (stacked on mobile) ────────────────── */
.feedback-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.feedback-grid .card { margin-bottom: 0; }

/* ─── Tags ─────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: 0.375rem;
  margin-bottom: 0.375rem;
}

.tag-green { background: rgba(74, 222, 128, 0.15); color: var(--success); }
.tag-yellow { background: rgba(251, 191, 36, 0.15); color: var(--warn); }
.tag-red { background: rgba(248, 113, 113, 0.15); color: var(--danger); }

/* ─── Session List ─────────────────────────────────────── */
.session-list { list-style: none; padding: 0; }

.session-item {
  background: var(--surface);
  border: 1px solid var(--surface2);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: border-color 0.2s;
  min-height: 3rem;
}

@media (hover: hover) {
  .session-item:hover { border-color: var(--accent); }
}

.session-item .code {
  font-family: 'Courier New', monospace;
  font-weight: 700;
  color: var(--accent);
  font-size: 1.1rem;
}

.session-item .date {
  font-size: 0.75rem;
  color: var(--text-dim);
  display: block;
}

.session-item .score {
  float: right;
  font-weight: 600;
  font-size: 0.85rem;
}

/* ─── Welcome ──────────────────────────────────────────── */
.welcome-icon {
  font-size: 3rem;
  text-align: center;
  margin-bottom: 1rem;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.steps li {
  counter-increment: step;
  padding: 0.75rem 0 0.75rem 2.5rem;
  position: relative;
  border-bottom: 1px solid var(--surface2);
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.625rem;
  width: 1.75rem;
  height: 1.75rem;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.steps li:last-child { border-bottom: none; }

/* ─── Ideogram Canvas ──────────────────────────────────── */
.ideogram-area {
  width: 100%;
  height: 180px;
  background: var(--surface2);
  border: 1px solid var(--surface2);
  border-radius: var(--radius);
  cursor: crosshair;
  touch-action: none;
}

.ideogram-area canvas {
  width: 100%;
  height: 100%;
  border-radius: var(--radius);
}

.clear-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--surface2);
  color: var(--text-dim);
  padding: 0.375rem 0.625rem;
  min-height: 2.5rem;
  min-width: 2.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  cursor: pointer;
}

.ideogram-wrap {
  position: relative;
  margin-bottom: 1rem;
}

/* ─── Category Buttons ─────────────────────────────────── */
.category-select {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.cat-btn {
  padding: 0.5rem 0.875rem;
  min-height: 2.5rem;
  border-radius: 20px;
  border: 1px solid var(--surface2);
  background: var(--surface2);
  color: var(--text-dim);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

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

@media (hover: hover) {
  .cat-btn:hover { border-color: var(--accent); }
}

/* ─── Progress Bar ─────────────────────────────────────── */
.progress-bar {
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.progress-bar .fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s;
}

/* ─── Stats Grid (2-col on mobile) ─────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.stat-card {
  background: var(--surface2);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
}

.stat-card .value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-card .label {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* ─── Modal ────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 200;
  align-items: flex-end; /* bottom sheet on mobile */
  justify-content: center;
  padding: 0;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--surface);
  border: 1px solid var(--surface2);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 1.5rem;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal h3 {
  color: var(--accent2);
  margin-bottom: 0.75rem;
}

.modal p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

/* ─── Tip Banner ───────────────────────────────────────── */
.tip-banner {
  background: linear-gradient(135deg, rgba(123,104,238,0.12), rgba(157,141,241,0.06));
  border: 1px solid rgba(123,104,238,0.25);
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
}

.tip-banner .tip-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.tip-banner .tip-text {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text);
}

.tip-banner .tip-refresh {
  flex-shrink: 0;
  background: var(--surface2);
  border: 1px solid var(--surface2);
  color: var(--text-dim);
  padding: 0.375rem 0.625rem;
  min-height: 2rem;
  min-width: 2rem;
  border-radius: 6px;
  font-size: 0.75rem;
  cursor: pointer;
  align-self: center;
  transition: all 0.2s;
}

@media (hover: hover) {
  .tip-banner .tip-refresh:hover {
    border-color: var(--accent);
    color: var(--accent2);
  }
}

/* ─── Hub Page ─────────────────────────────────────────── */
.app-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.app-card {
  background: var(--surface);
  border: 1px solid var(--surface2);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.2s;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 3rem;
}

@media (hover: hover) {
  .app-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
  }
}

.app-card .app-icon {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

.app-card .app-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent2);
}

.app-card .app-desc {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.5;
  flex: 1;
}

.app-card .app-link {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
  margin-top: 0.25rem;
}

.hero {
  text-align: center;
  padding: 2rem 0 1.5rem;
}

.hero h2 {
  font-size: 1.35rem;
  color: var(--accent2);
  margin-bottom: 0.5rem;
}

.hero p {
  color: var(--text-dim);
  font-size: 0.9rem;
  max-width: 30rem;
  margin: 0 auto;
  line-height: 1.6;
}

.section-title {
  font-size: 1rem;
  color: var(--accent2);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--surface2);
}

/* ═══════════════════════════════════════════════════════════
   TABLET — ≥600px
   ═══════════════════════════════════════════════════════════ */
@media (min-width: 600px) {
  :root {
    --pad-inline: 1.5rem;
  }

  header { padding: 1rem 1.5rem; }
  header h1 { font-size: 1.15rem; }

  .card { padding: 1.5rem; }

  .feedback-grid { grid-template-columns: 1fr 1fr; }

  .stats-grid { grid-template-columns: repeat(3, 1fr); }

  .stat-card .value { font-size: 1.5rem; }

  .target-code { font-size: 2.25rem; padding: 2rem; }

  .ideogram-area { height: 220px; }

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

  .hero h2 { font-size: 1.5rem; }

  .modal {
    border-radius: var(--radius);
    max-width: 30rem;
  }

  .modal-overlay {
    align-items: center; /* centered on tablet+ */
    padding: 1rem;
  }
}

/* ═══════════════════════════════════════════════════════════
   DESKTOP — ≥900px
   ═══════════════════════════════════════════════════════════ */
@media (min-width: 900px) {
  :root {
    --pad-inline: 2rem;
  }

  header { padding: 1rem 2rem; }
  header h1 { font-size: 1.25rem; }

  .hero h2 { font-size: 1.75rem; }

  .app-grid { grid-template-columns: repeat(3, 1fr); }

  .target-code { font-size: 2.5rem; padding: 2.5rem; }

  .ideogram-area { height: 250px; }

  .card { padding: 1.75rem; }

  .btn { width: auto; }
  .btn-full { width: 100%; }
}

/* ─── Dial Trainer ──────────────────────────────────────── */
.dial-container {
  width: 100%;
  max-width: 400px;
  margin: 1rem auto;
  text-align: center;
}
.dial-container canvas {
  width: 100%;
  height: auto;
  max-width: 400px;
}
input[type="range"] {
  width: 100%;
  min-height: 3rem;
  cursor: pointer;
}

/* ─── Activity List (Hub) ──────────────────────────────── */
.activity-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.activity-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
}
.activity-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}
.activity-label {
  font-weight: 600;
  flex: 1;
}
.activity-score {
  font-weight: 700;
  color: var(--accent);
  font-size: 1.1rem;
}
.activity-meta {
  font-size: 0.8rem;
  color: var(--text-dim);
}

@media (min-width: 600px) {
  .activity-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
}
@media (min-width: 900px) {
  .activity-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ─── Footer ───────────────────────────────────────────── */
footer {
  width: 100%;
  background: var(--surface);
  border-top: 1px solid var(--surface2);
  padding: 1.5rem 1rem;
  text-align: center;
  margin-top: auto;
}

.footer-inner {
  max-width: 45rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.copyright {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.footer-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  font-size: 0.8rem;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

@media (hover: hover) {
  .footer-nav a:hover {
    color: var(--accent2);
    text-decoration: underline;
  }
}

.disclaimer {
  font-size: 0.7rem;
  color: var(--text-dim);
  max-width: 30rem;
  line-height: 1.5;
}