/* ─────────────────────────────────────────────────────────────────────────────
   style.css — Thanzi core theme & layout
   Theme system: variables defined here in :root (dark, default) and overridden
   under [data-theme="light"]. log.css consumes the same variables.
   ──────────────────────────────────────────────────────────────────────────── */

:root {
  /* Surfaces */
  --bg-page:    #0f1117;
  --bg-surface: #1a1a2e;
  --bg-inset:   #0f1117;

  /* Card surfaces used by settings/exercise/goals/weight/progress panels */
  --surface-1: #262638;
  --surface-2: #1e1e2e;
  --bg-card:   #1e1e2e;

  /* Elevated surface used by recipe.css (cards/buttons above --bg-surface) */
  --bg-elevated: #242738;

  /* Borders */
  --border:      #2a2a2a;
  --border-soft: #23233a;

  /* Text — 1 (most prominent) through 6 (faintest) */
  --text-1: #ffffff;
  --text-2: #aaaaaa;
  --text-3: #888888;
  --text-4: #666666;
  --text-5: #555555;
  --text-6: #444444;

  /* Brand accent (green) */
  --accent:        #2d9e6b;
  --accent-rgb:    45, 158, 107;
  --accent-active: #249059;

  /* Fixed text color for use on solid accent fills — stays white in both themes */
  --on-accent: #ffffff;

  /* Secondary accents (Flat-UI palette; look good on both light & dark, so these
     don't change between themes) */
  --blue:        #3498db;
  --blue-rgb:    52, 152, 219;
  --danger:      #e74c3c;
  --purple:      #9b59b6;
  --purple-rgb:  155, 89, 182;
  --orange:      #e67e22;
  --orange-rgb:  230, 126, 34;

  /* Elevation */
  --shadow-dropdown: 0 8px 24px rgba(0, 0, 0, 0.4);

  /* Auth card — dark defaults */
  --auth-card-bg:        #1c1f2e;
  --auth-card-border:    rgba(45, 158, 107, 0.25);
  --auth-card-shadow:    0 24px 64px rgba(0,0,0,0.55), 0 4px 16px rgba(0,0,0,0.3);
  --auth-tab-track:      #13151f;
  --auth-tab-border:     rgba(255,255,255,0.07);
  --auth-input-bg:       #13151f;
  --auth-input-border:   rgba(255,255,255,0.1);
  --auth-input-focus-bg: #161924;
  --auth-input-ph:       #4a5068;
  --auth-divider-color:  #3a3f55;
  --auth-divider-line:   rgba(255,255,255,0.07);
  --auth-social-bg:      #13151f;
  --auth-social-border:  rgba(255,255,255,0.1);
  --auth-social-text:    #c8ccd8;
  --auth-social-hover:   #161924;
}

[data-theme="light"] {
  /* Surfaces */
  --bg-page:    #f4f6f5;
  --bg-surface: #ffffff;
  --bg-inset:   #eef1ef;

  /* Card surfaces — light equivalents */
  --surface-1: #eef1ef;
  --surface-2: #ffffff;
  --bg-card:   #ffffff;

  /* Elevated surface — light equivalent */
  --bg-elevated: #eef1ef;

  /* Borders */
  --border:      #e1e5e2;
  --border-soft: #e8ebe9;

  /* Text — same 1→6 scale, inverted so 1 is still "most prominent" */
  --text-1: #14181a;
  --text-2: #4b5550;
  --text-3: #6b7570;
  --text-4: #8a9590;
  --text-5: #a3aba6;
  --text-6: #bcc2bd;

  /* Slightly deeper green keeps contrast on a white surface */
  --accent:        #1f8f5c;
  --accent-rgb:    31, 143, 92;
  --accent-active: #186e45;

  --shadow-dropdown: 0 8px 24px rgba(20, 30, 25, 0.12);

  /* Auth card — light overrides */
  --auth-card-bg:        #ffffff;
  --auth-card-border:    #e1e5e2;
  --auth-card-shadow:    0 20px 60px rgba(20,30,25,0.1), 0 4px 16px rgba(20,30,25,0.06);
  --auth-tab-track:      #eef1ef;
  --auth-tab-border:     #e1e5e2;
  --auth-input-bg:       #eef1ef;
  --auth-input-border:   #d5dbd7;
  --auth-input-focus-bg: #f8faf9;
  --auth-input-ph:       #a3aba6;
  --auth-divider-color:  #b0b8b4;
  --auth-divider-line:   #e1e5e2;
  --auth-social-bg:      #eef1ef;
  --auth-social-border:  #d5dbd7;
  --auth-social-text:    #14181a;
  --auth-social-hover:   #f8faf9;
}

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

/* Smooth, scoped theme-switch transition. More specific rules elsewhere keep
   their own transition timing for hover/press states. */
body, .calorie-card, .water-card, .dash-header, .bottom-nav, .nav-btn,
input, button, .option-btn, .tab, .auth-tabs,
#selected-food-card, .scanner-inner, .scanner-header, .meal-btn,
#food-search-input, .barcode-scan-btn, #food-search-results, .log-entry,
.scanner-status, .scanner-choice-btn, .theme-toggle-btn {
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-page);
  color: var(--text-1);
  min-height: 100vh;
}

/* THEME TOGGLE BUTTON (floating, visible on every screen) */
.theme-toggle-btn {
  position: fixed;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 500;
}
.theme-toggle-btn:hover  { color: var(--accent); border-color: var(--accent); }
.theme-toggle-btn:active { transform: scale(0.92); }
.theme-icon { display: block; }
.icon-moon  { display: none; }
/* Dark mode (default): show moon (tap to switch to light) */
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* ── SPLASH ──────────────────────────────────────────────────────────────── */

.splash-screen {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%,
      rgba(var(--accent-rgb), 0.08) 0%, transparent 70%),
    var(--bg-page);
}

.splash-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.splash-logo {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  object-fit: cover;
  margin-bottom: 10px;
  box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.25);
}

.splash-spinner {
  width: 22px;
  height: 22px;
  margin-top: 22px;
  border: 2.5px solid rgba(var(--accent-rgb), 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: splash-spin 0.8s linear infinite;
}

@keyframes splash-spin {
  to { transform: rotate(360deg); }
}

/* ── AUTH ────────────────────────────────────────────────────────────────── */

/* Full-screen wrapper with subtle radial glow behind the card */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
  gap: 24px;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%,
      rgba(var(--accent-rgb), 0.08) 0%, transparent 70%),
    var(--bg-page);
}

/* Brand */
.auth-brand {
  text-align: center;
}
.logo {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -1px;
  margin-bottom: 6px;
  line-height: 1;
}
.tagline {
  color: var(--text-3);
  font-size: 0.9rem;
  letter-spacing: 0.4px;
}

/* ── Card ── */
.form-container {
  width: 100%;
  max-width: 380px;
  background: var(--bg-surface);
  border: 1px solid var(--border-soft);
  border-radius: 28px;
  padding: 32px 28px 28px;
  box-sizing: border-box;
  box-shadow:
    0 2px 0 rgba(255,255,255,0.04) inset,
    0 20px 60px rgba(0, 0, 0, 0.3),
    0 4px 16px rgba(0, 0, 0, 0.15);
}

/* Tabs — pill style */
.auth-tabs {
  display: flex;
  margin-bottom: 26px;
  border-radius: 50px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  padding: 4px;
  gap: 4px;
}
.tab {
  flex: 1;
  padding: 10px 16px;
  background: transparent;
  color: var(--text-3);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.22s ease, color 0.22s ease, box-shadow 0.22s ease;
}
.tab.active {
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: 0 2px 10px rgba(var(--accent-rgb), 0.4);
}

/* Inputs — fully pill-shaped */
.auth-input {
  width: 100%;
  padding: 15px 20px;
  margin-bottom: 14px;
  background: var(--bg-inset);
  border: 1.5px solid var(--border);
  border-radius: 50px;
  color: var(--text-1);
  font-size: 0.97rem;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.auth-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
}
.auth-input::placeholder {
  color: var(--text-4);
}

/* Forgot password */
.page-link {
  text-align: right;
  margin: -4px 4px 16px;
}
.page-link-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  cursor: pointer;
  text-decoration: none;
  opacity: 0.85;
  transition: opacity 0.15s;
}
.page-link-label:hover { opacity: 1; }

/* Main CTA — pill */
.form-btn {
  width: 100%;
  padding: 15px;
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.3px;
  box-shadow:
    0 4px 14px rgba(var(--accent-rgb), 0.45),
    0 1px 3px rgba(var(--accent-rgb), 0.2);
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
}
.form-btn:hover {
  background: var(--accent-active);
  box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.5);
}
.form-btn:active {
  transform: scale(0.97);
  box-shadow: 0 2px 6px rgba(var(--accent-rgb), 0.3);
}

/* Error */
.error {
  color: var(--danger);
  margin-top: 10px;
  font-size: 0.86rem;
  min-height: 1.1em;
  text-align: center;
}

/* "or" divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 16px;
  color: var(--text-4);
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Guest mode — secondary pill button */
.form-btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--border);
  box-shadow: none;
  margin-top: 12px;
}
.form-btn-secondary:hover {
  background: rgba(var(--accent-rgb), 0.08);
  box-shadow: none;
}
.form-btn-secondary:active { transform: scale(0.97); }

.guest-note {
  text-align: center;
  font-size: 0.76rem;
  color: var(--text-4);
  margin: 10px 4px 0;
  line-height: 1.4;
}

/* Guest trial banner — dashboard */
.trial-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: rgba(var(--accent-rgb), 0.12);
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  border-radius: 12px;
  padding: 10px 14px;
  margin: 10px 16px 0;
  font-size: 0.82rem;
  color: var(--text-1);
}
.trial-banner-cta {
  flex-shrink: 0;
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}
.trial-banner-cta:hover { background: var(--accent-active); }

/* Trial-expired / upgrade screen */
.trial-expired-title {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 800;
  margin: 4px 0 10px;
  color: var(--text-1);
}
.trial-expired-sub {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-3);
  line-height: 1.5;
  margin: 0 0 20px;
}

/* Social buttons */
.buttons-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.google-login-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 20px;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  background: var(--bg-inset);
  color: var(--text-1);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s, transform 0.15s;
}
.google-login-button:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.1);
}
.google-login-button:active {
  transform: scale(0.97);
}
.google-icon {
  font-size: 20px;
  flex-shrink: 0;
}

/* ── Auth theme overrides — uses CSS vars set in :root / [data-theme="light"]
   No hardcoded colours here, so toggling the theme always works instantly.
   ──────────────────────────────────────────────────────────────────────── */

.auth-wrapper {
  background:
    radial-gradient(ellipse 80% 55% at 50% -10%,
      rgba(var(--accent-rgb), 0.1) 0%, transparent 65%),
    var(--bg-page);
}

.form-container {
  background: var(--auth-card-bg);
  border: 1.5px solid var(--auth-card-border);
  box-shadow:
    0 2px 0 rgba(255,255,255,0.03) inset,
    var(--auth-card-shadow);
}

.auth-tabs {
  background: var(--auth-tab-track);
  border-color: var(--auth-tab-border);
}

.auth-input {
  background: var(--auth-input-bg);
  border-color: var(--auth-input-border);
  color: var(--text-1);
}
.auth-input:focus {
  border-color: var(--accent);
  background: var(--auth-input-focus-bg);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.15);
}
.auth-input::placeholder {
  color: var(--auth-input-ph);
}

.auth-divider {
  color: var(--auth-divider-color);
}
.auth-divider::before,
.auth-divider::after {
  background: var(--auth-divider-line);
}

.google-login-button {
  background: var(--auth-social-bg);
  border-color: var(--auth-social-border);
  color: var(--auth-social-text);
}
.google-login-button:hover {
  border-color: var(--accent);
  background: var(--auth-social-hover);
}

/* DASHBOARD */
/* ── Dashboard top bar ───────────────────────────────────────────────────── */
.dash-topbar {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.dash-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
}

/* ── Dashboard hero ──────────────────────────────────────────────────────── */
.dash-hero {
  padding: 18px 20px 14px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.dash-hero #greeting {
  display: block;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.dash-hero-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin: 0;
}
button#logout-btn, .profile-logout-btn {
  width: 100%;
  margin-top: 24px;
  padding: 12px;
  background: transparent;
  border: 1.5px solid var(--danger, #ef4444);
  color: var(--danger, #ef4444);
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, color .15s;
}
button#logout-btn:hover, .profile-logout-btn:hover {
  background: var(--danger, #ef4444);
  color: #fff;
}

.dash-main {
  padding: 16px;
  padding-bottom: 80px;
  overflow-y: auto;
}

/* CALORIE RING CARD */
.calorie-card {
  background: var(--bg-surface);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ring-container {
  position: relative;
  width: 160px;
  height: 160px;
  margin-bottom: 20px;
}

.ring { width: 160px; height: 160px; transform: rotate(-90deg); }

.ring-bg {
  fill: none;
  stroke: var(--border);
  stroke-width: 10;
}

.ring-fill {
  fill: none;
  stroke: var(--accent);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  transition: stroke-dashoffset 0.6s ease;
}

.ring-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.ring-text span {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-1);
  display: block;
}

.ring-text small { color: var(--text-3); font-size: 0.75rem; }

.macros {
  display: flex;
  gap: 24px;
  justify-content: center;
}

.macro { text-align: center; }
.macro-val { font-size: 1.1rem; font-weight: 600; color: var(--accent); display: block; }
.macro-label { font-size: 0.75rem; color: var(--text-3); }

/* WATER CARD */
.water-card {
  background: var(--bg-surface);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 16px;
}

.water-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 0.9rem;
  color: var(--text-3);
}

.water-bar {
  background: var(--border);
  border-radius: 8px;
  height: 10px;
  margin-bottom: 12px;
  overflow: hidden;
}

.water-fill {
  height: 100%;
  background: var(--blue);
  border-radius: 8px;
  width: 0%;
  transition: width 0.4s ease;
}

.water-btns { display: flex; gap: 8px; }
.water-btn { flex: 1; padding: 8px; background: var(--bg-inset); border: 1px solid var(--blue); color: var(--blue); border-radius: 8px; cursor: pointer; font-size: 0.85rem; }

/* BOTTOM NAV */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  display: flex;
  padding: 8px 0;
}

.nav-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-3);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  font-size: 1.2rem;
  padding: 4px;
}

.nav-btn span { font-size: 0.7rem; }
.nav-btn.active { color: var(--accent); }

/* PROFILE SETUP */
.profile-container {
  max-width: 400px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.profile-not-you {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin-bottom: 14px;
  font-size: 0.8rem;
  color: var(--text-4);
}

.profile-logout-link {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.profile-logout-link:hover  { opacity: 0.85; }
.profile-logout-link:active { opacity: 0.65; }

.profile-container h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-1);
}

.profile-sub {
  color: var(--text-3);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.profile-container label {
  display: block;
  color: var(--text-2);
  font-size: 0.85rem;
  margin-bottom: 6px;
  margin-top: 16px;
}

.option-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

.option-group.vertical {
  flex-direction: column;
}

.option-btn {
  flex: 1;
  padding: 10px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  text-align: left;
}

.option-btn.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

button#save-profile-btn {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 24px;
}

/* ── Home dashboard extras ───────────────────────────────────────────────── */

/* Generic home card */
.hd-card {
  background: var(--bg-surface);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 16px;
  border: 1px solid var(--border-soft);
}

.hd-card-title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: .6px;
  margin-bottom: 14px;
}

/* Remaining kcal badge (inside calorie-card) */
.hd-remaining-badge {
  font-size: .78rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(var(--accent-rgb), .12);
  border-radius: 20px;
  padding: 4px 14px;
  margin-bottom: 14px;
  display: inline-block;
}

.hd-remaining-badge.over {
  color: #e74c3c;
  background: rgba(231, 76, 60, .12);
}

/* Macro progress bars */
.hd-macro-row {
  margin-bottom: 12px;
}

.hd-macro-row:last-child { margin-bottom: 0; }

.hd-macro-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 5px;
}

.hd-macro-name {
  font-size: .8rem;
  font-weight: 700;
}

.hd-macro-lbl {
  font-size: .74rem;
  color: var(--text-3);
}

.hd-bar-track {
  background: var(--border);
  border-radius: 6px;
  height: 8px;
  overflow: hidden;
}

.hd-bar-fill {
  height: 100%;
  border-radius: 6px;
  width: 0%;
  transition: width .5s ease;
}

.hd-bar-fill.carbs   { background: var(--accent); }
.hd-bar-fill.protein { background: var(--blue); }
.hd-bar-fill.fat     { background: var(--orange); }

/* Today's meals summary */
.hd-meals-empty {
  font-size: .82rem;
  color: var(--text-4);
  text-align: center;
  padding: 8px 0 12px;
}

.hd-meal-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-soft);
}

.hd-meal-row:last-child { border-bottom: none; }

.hd-meal-label {
  font-size: .78rem;
  font-weight: 700;
  color: var(--text-2);
  white-space: nowrap;
  min-width: 88px;
}

.hd-meal-foods {
  flex: 1;
  font-size: .78rem;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hd-meal-kcal {
  font-size: .78rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}

.hd-log-btn {
  margin-top: 12px;
  width: 100%;
  padding: 10px;
  background: rgba(var(--accent-rgb), .12);
  border: 1px solid var(--accent);
  border-radius: 10px;
  color: var(--accent);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}

.hd-log-btn:active { background: rgba(var(--accent-rgb), .25); }