/* ── GLOBAL: remove number input spinners ───────────────────── */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; appearance: textfield; }

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
  --bg:       #0b0d14;
  --surface:  #13161f;
  --surface2: #1c2030;
  --border:   #252a3a;
  --accent:   #3b82f6;
  --green:    #22c55e;
  --red:      #ef4444;
  --yellow:   #eab308;
  --text:     #e2e8f0;
  --muted:    #64748b;
}

/* ── RESET ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
button, a { touch-action: manipulation; } /* prevent double-tap zoom on iOS */

html { font-size: 16px; overflow-x: hidden; }

body {
  font-family: 'DM Mono', monospace;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

/* ── NAV ───────────────────────────────────────────────────── */
nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px; height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.nav-brand {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800; font-size: 1.4rem;
  color: var(--accent); letter-spacing: 0.05em; text-transform: uppercase;
  text-decoration: none;
}
.nav-brand img { height: 28px; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
  color: var(--muted); text-decoration: none; font-size: 0.78rem;
  letter-spacing: 0.05em; text-transform: uppercase; transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
/* #navDashLink is always visible */

/* ── MAIN CONTAINER ────────────────────────────────────────── */
.container {
  max-width: 680px;
  margin: 40px auto;
  padding: 0 24px 60px;
}

h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 2.8rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.02em;
  line-height: 1; margin-bottom: 28px;
  color: var(--text);
}
h1 span { color: var(--accent); }

/* ── HOW IT WORKS ──────────────────────────────────────────── */
.how-it-works {
  display: flex; align-items: flex-start; gap: 10px;
  margin: 20px 0 4px; padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  font-family: 'DM Mono', monospace; font-size: 0.72rem; color: var(--muted);
}
.hiw-step { display: flex; align-items: flex-start; gap: 8px; flex: 1; line-height: 1.45; }
.hiw-num  { color: var(--accent); font-weight: 500; flex-shrink: 0; }
.hiw-sep  { color: var(--border); flex-shrink: 0; padding-top: 1px; }
@media (max-width: 600px) {
  .how-it-works { flex-direction: column; gap: 8px; }
  .hiw-sep      { display: none; }
}

/* ── TRIAL BADGE ───────────────────────────────────────────── */
.trial-badge {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  padding: 7px 12px; border-radius: 5px; margin-bottom: 16px;
  letter-spacing: 0.03em; text-align: center;
}
.trial-active  { background: rgba(59,130,246,0.1);  color: var(--accent);  border: 1px solid rgba(59,130,246,0.3); }
.trial-waitlist{ background: rgba(34,197,94,0.1);   color: var(--green);   border: 1px solid rgba(34,197,94,0.3);  }
.trial-expired { background: rgba(239,68,68,0.1);   color: #ef4444;        border: 1px solid rgba(239,68,68,0.3);  }

/* ── USER STATUS ───────────────────────────────────────────── */
#userStatus {
  margin-bottom: 24px; padding: 16px 20px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; font-size: 0.82rem; color: var(--muted);
  text-align: center;
}
#userStatus strong { color: var(--text); }
.sign-in-container {
  display: flex; flex-direction: column;
  align-items: center; gap: 10px;
}
.sign-in-container span { color: var(--muted); font-size: 0.8rem; }

/* ── FORM ──────────────────────────────────────────────────── */
form {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 24px; margin-bottom: 20px;
}
label {
  display: block; margin-bottom: 8px;
  font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.07em; color: var(--muted);
}
input[type="url"] {
  width: 100%; padding: 12px 14px; margin-bottom: 16px;
  font-size: 16px; /* ≥16px prevents iOS Safari auto-zoom on tap */
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text);
  font-family: 'DM Mono', monospace;
  transition: border-color 0.2s;
}
input[type="url"]:focus {
  outline: none; border-color: var(--accent);
}
input[type="url"]::placeholder { color: var(--muted); }

button[type="submit"] {
  width: 100%; padding: 13px;
  background: var(--accent); color: #fff; border: none;
  border-radius: 6px; cursor: pointer;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  transition: background 0.2s;
}
button[type="submit"]:hover { background: #2563eb; }
button[type="submit"]:disabled { background: var(--border); color: var(--muted); cursor: not-allowed; }

/* ── MESSAGES ──────────────────────────────────────────────── */
#message {
  padding: 12px 16px; border-radius: 6px;
  font-size: 0.82rem; display: none; margin-bottom: 20px;
  border: 1px solid transparent;
}
#message.success { background: #14532d33; color: var(--green); border-color: #14532d; }
#message.error   { background: #7f1d1d33; color: #fca5a5;     border-color: #7f1d1d; }
#message.info    { background: #1e3a5f33; color: #93c5fd;     border-color: #1e3a5f; }

/* ── WORKOUT SUMMARY CARD ──────────────────────────────────── */
#breakdownResultDiv {
  display: none;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 24px; margin-top: 4px;
}
#breakdownResultDiv h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.2rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--muted); margin-bottom: 20px;
  border-bottom: 1px solid var(--border); padding-bottom: 10px;
}
#breakdownResultDiv h4 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.85rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--muted); margin: 20px 0 10px;
}
#breakdownResultDiv p { font-size: 0.85rem; margin-bottom: 6px; color: var(--text); }
#breakdownResultDiv strong { color: var(--muted); font-weight: 500; }

.summary-header {
  display: flex; gap: 20px; align-items: flex-start; margin-bottom: 20px;
}
.summary-thumbnail img {
  width: 140px; border-radius: 6px; object-fit: cover;
  border: 1px solid var(--border);
}
.summary-details { flex: 1; display: flex; flex-direction: column; gap: 6px; }

/* intensity bar */
.intensity-line {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.85rem; margin: 4px 0;
}
.intensity-bar {
  flex: 1; height: 6px; background: var(--border);
  border-radius: 3px; overflow: hidden;
}
.intensity-level { height: 100%; background: var(--accent); border-radius: 3px; }

/* log workout button */
.log-workout-btn-container { margin: 20px 0 4px; }
.summary-sign-in-prompt {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 4px 0;
}
.summary-sign-in-prompt span { font-size: 0.75rem; color: var(--muted); }
.log-workout-btn {
  width: 100%; padding: 13px;
  background: var(--green); color: #fff;
  border: none; border-radius: 6px; cursor: pointer;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.05rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  transition: background 0.2s;
}
.log-workout-btn:hover { background: #16a34a; }
.log-workout-btn:disabled { background: var(--border); color: var(--muted); cursor: not-allowed; }

/* weight + kCal row — shown on summary screen when user is signed in */
.summary-kcal-row {
  display: flex; gap: 16px; flex-wrap: wrap;
  padding: 12px 0; margin-bottom: 10px;
  border-top: 1px solid var(--border);
}
.summary-kcal-field { display: flex; flex-direction: column; gap: 5px; }
.summary-kcal-label {
  font-size: 0.68rem; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.07em;
}
.summary-kcal-input-wrap { display: flex; align-items: center; gap: 6px; }
.summary-kcal-unit { font-size: 0.78rem; color: var(--muted); }

/* muscle group tags (legacy) */
.muscle-group-details { margin-top: 4px; }
.muscle-group-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.muscle-group-tag {
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--text); padding: 5px 12px; border-radius: 20px;
  font-size: 0.78rem;
}
.muscle-group-tag .minutes { color: var(--muted); margin-left: 4px; }

/* muscle bar chart — shared by analyzer and dashboard */
.muscle-toggle { display: flex; gap: 8px; margin: 10px 0 16px; }
.toggle-btn {
  padding: 6px 16px; border-radius: 4px; border: 1px solid var(--border);
  background: var(--surface); color: var(--muted);
  font-family: var(--font-mono); font-size: 0.72rem; cursor: pointer;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.toggle-btn:hover { border-color: var(--accent); color: var(--text); }
.toggle-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.muscle-list { display: flex; flex-direction: column; gap: 10px; }
.muscle-item {
  display: grid;
  grid-template-columns: 140px 1fr 48px;
  align-items: center; gap: 12px;
}
.muscle-item-name {
  font-size: 0.78rem; color: var(--text);
  text-transform: capitalize; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}
.muscle-item-bar-wrap { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; }
.muscle-item-bar { height: 100%; border-radius: 4px; width: 0; transition: width 0.7s cubic-bezier(0.4, 0, 0.2, 1); }
.muscle-item-mins { font-size: 0.72rem; color: var(--muted); text-align: right; }

/* video tags */
.tag-container { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.tag {
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--muted); padding: 3px 10px;
  border-radius: 12px; font-size: 0.75rem;
}

/* ── TAGS SHOW-MORE ─────────────────────────────────────────── */
.tag-more-btn {
  background: none; border: 1px solid var(--border); color: var(--muted);
  padding: 3px 10px; border-radius: 12px; font-size: 0.75rem;
  cursor: pointer; font-family: 'DM Mono', monospace;
  transition: border-color 0.15s, color 0.15s;
}
.tag-more-btn:hover { border-color: var(--accent); color: var(--text); }

/* ── GOOGLE SIGN-IN LINKS ──────────────────────────────────── */
.google-signin-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  background: var(--accent); color: #fff;
  border-radius: 6px; text-decoration: none;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.88rem; font-weight: 700;
  letter-spacing: 0.05em; text-transform: uppercase;
  transition: background 0.2s;
}
.google-signin-link:hover { background: #2563eb; }
.google-signin-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px;
  background: var(--accent); color: #fff;
  border-radius: 6px; text-decoration: none;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.05rem; font-weight: 700;
  letter-spacing: 0.05em; text-transform: uppercase;
  transition: background 0.2s;
}
.google-signin-btn:hover { background: #2563eb; }

/* ── AVATAR ─────────────────────────────────────────────────── */
.nav-right { display: flex; align-items: center; gap: 16px; }
.avatar-wrap { position: relative; }
.avatar-btn {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--muted); cursor: pointer; padding: 0;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.avatar-btn:hover { border-color: var(--accent); color: var(--accent); }
.avatar-btn.signed-in { background: var(--accent); border-color: var(--accent); color: #fff; }
.avatar-btn.signed-in:hover { background: #2563eb; border-color: #2563eb; }
.avatar-menu {
  display: none; position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px 16px; min-width: 190px;
  z-index: 200; box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.avatar-menu.open { display: block; }
.avatar-menu-label {
  font-size: 0.7rem; color: var(--muted); margin-bottom: 6px;
  word-break: break-all; line-height: 1.4;
}
.avatar-menu-btn {
  display: block; width: 100%; padding: 8px 0; border: none; background: none;
  color: var(--muted); font-family: 'DM Mono', monospace;
  font-size: 0.72rem; cursor: pointer; text-align: left;
  text-transform: uppercase; letter-spacing: 0.05em; text-decoration: none;
  transition: color 0.15s; border-top: 1px solid var(--border); margin-top: 8px;
}
.avatar-menu-btn:hover { color: var(--text); }
.avatar-menu-btn.danger:hover { color: #fca5a5; }

/* ── FAB ────────────────────────────────────────────────────── */
.fab {
  position: fixed; bottom: 24px; right: 24px;
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  text-decoration: none; z-index: 150;
  box-shadow: 0 4px 16px rgba(59,130,246,0.35);
  transition: transform 0.15s, box-shadow 0.15s;
}
.fab:hover { transform: scale(1.08); box-shadow: 0 6px 24px rgba(59,130,246,0.5); }

/* ── SPINNER ────────────────────────────────────────────────── */
.spinner {
  width: 28px; height: 28px; border: 2px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin 0.7s linear infinite; margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }
.analyzing-state {
  text-align: center; padding: 28px 0 20px;
}
.analyzing-state p {
  font-size: 0.75rem; color: var(--muted); margin-top: 12px;
  letter-spacing: 0.03em;
}

/* ── LOG SUCCESS ────────────────────────────────────────────── */
.log-success {
  color: var(--green); font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.95rem; font-weight: 700; letter-spacing: 0.05em;
  text-transform: uppercase;
}
.log-streak {
  color: var(--green); font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.82rem; font-weight: 600; letter-spacing: 0.04em;
}
.log-success-left { display: flex; flex-direction: column; gap: 3px; }
.log-success-state {
  display: flex; align-items: flex-start; justify-content: space-between;
  padding: 10px 0;
}
.view-dashboard-link {
  color: var(--accent); text-decoration: none;
  font-family: 'DM Mono', monospace; font-size: 0.75rem;
  transition: color 0.2s;
}
.view-dashboard-link:hover { color: var(--text); }

/* ── SITE FOOTER ────────────────────────────────────────────── */
.site-footer {
  display: flex; align-items: center; justify-content: center; gap: 20px;
  padding: 20px 24px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
  font-size: 0.72rem; color: var(--muted); font-family: 'DM Mono', monospace;
}
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); }

/* ── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 500px) {
  nav { padding: 0 16px; }
  .container { padding: 0 16px 40px; margin-top: 24px; }
  h1 { font-size: 2rem; }
  .summary-header { flex-direction: column; }
  .summary-thumbnail img { width: 100%; }
}