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

:root {
  --bg: #FAFAFA;
  --bg-alt: #F5F5F7;
  --bg-dark: #111111;
  --text: #1D1D1F;
  --text-secondary: #6E6E73;
  --text-tertiary: #86868B;
  --text-on-dark: #F5F5F7;
  --accent: #FF6B00;
  --accent-hover: #E85D00;
  --accent-light: #FFF3E8;
  --accent-glow: rgba(255, 107, 0, 0.25);
  --green: #00C853;
  --green-light: #E8F5E9;
  --red: #E53935;
  --red-light: #FFEBEE;
  --blue: #2196F3;
  --blue-light: #E3F2FD;
  --border: rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 100px;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --nav-height: 72px;
  --header-height: 60px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

html { font-size: 62.5%; }

body {
  font-family: var(--font);
  font-size: 1.6rem;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.hidden { display: none !important; }

/* ── Onboarding ── */
.onboarding {
  position: fixed;
  inset: 0;
  background: var(--bg-dark);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

.onboarding.hiding {
  opacity: 0;
  transform: scale(1.05);
  pointer-events: none;
}

.onboarding__slides {
  width: 100%;
  max-width: 360px;
  position: relative;
  min-height: 400px;
}

.onboarding__slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 20px;
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out);
  pointer-events: none;
}

.onboarding__slide.active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.onboarding__slide.leaving {
  opacity: 0;
  transform: translateX(-60px);
}

.onboarding__icon {
  width: 100px;
  height: 100px;
  margin-bottom: 8px;
}

.onboarding__icon svg { width: 100%; height: 100%; }

.onboarding__title {
  font-size: 2.8rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.onboarding__text {
  font-size: 1.6rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.5;
  max-width: 300px;
}

.onboarding__dots {
  display: flex;
  gap: 8px;
  margin-top: 40px;
}

.onboarding__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  transition: background 0.3s ease, transform 0.3s ease;
}

.onboarding__dot.active {
  background: var(--accent);
  transform: scale(1.3);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-size: 1.6rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-hover); }
.btn--primary:active { transform: scale(0.97); }

.btn--white { background: #fff; color: var(--accent); }
.btn--white:hover { background: rgba(255,255,255,0.9); }

.btn--outline { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn--outline:hover { background: var(--accent); color: #fff; }

.btn--danger { background: transparent; color: var(--red); border: 1.5px solid rgba(229,57,53,0.3); }
.btn--danger:hover { background: var(--red); color: #fff; }

.btn--ghost {
  background: transparent;
  color: rgba(255,255,255,0.6);
  font-size: 1.3rem;
  padding: 8px 16px;
  font-weight: 500;
}
.btn--ghost:hover { color: #fff; }

.btn--large { font-size: 1.8rem; padding: 18px 36px; width: 100%; }
.btn--small { font-size: 1.3rem; padding: 8px 16px; }
.btn--tiny { font-size: 1.2rem; padding: 6px 12px; color: var(--accent); }
.btn--full { width: 100%; }

/* ── Inputs ── */
.input {
  width: 100%;
  font-family: var(--font);
  font-size: 1.8rem;
  font-weight: 500;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 2px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.06);
  color: #fff;
  text-align: center;
  outline: none;
  transition: border-color 0.3s ease;
}

.input:focus { border-color: var(--accent); }

.input::placeholder { color: rgba(255,255,255,0.3); }

.input--small {
  font-size: 1.5rem;
  padding: 12px 16px;
  background: var(--bg-alt);
  color: var(--text);
  border-color: var(--border);
  text-align: left;
}

.input--small:focus { border-color: var(--accent); }

/* ── App Layout ── */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: calc(var(--header-height) + var(--safe-top));
  padding-top: var(--safe-top);
  background: rgba(250,250,250,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 20px;
  padding-right: 20px;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.header__greeting {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text);
}

.header__streak {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: var(--accent-light);
  border-radius: var(--radius-full);
  transition: transform 0.3s var(--ease-out);
}

.header__streak:active { transform: scale(0.95); }

.header__streak-fire { font-size: 1.6rem; }

.header__streak-count {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.main {
  flex: 1;
  padding-top: calc(var(--header-height) + var(--safe-top));
  padding-bottom: calc(var(--nav-height) + var(--safe-bottom));
}

.view {
  display: none;
  padding: 20px;
  animation: viewIn 0.3s var(--ease-out);
}

.view.active { display: block; }

@keyframes viewIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.view-title {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--nav-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  border-top: 1px solid var(--border);
  z-index: 100;
}

.nav__item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  font-family: var(--font);
  font-size: 1.1rem;
  font-weight: 500;
  transition: color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.nav__item svg { width: 22px; height: 22px; transition: transform 0.2s var(--ease-out); }

.nav__item.active { color: var(--accent); }
.nav__item.active svg { transform: scale(1.1); }

/* ── Cards ── */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  transition: transform 0.2s var(--ease-out);
}

.card--accent {
  background: linear-gradient(135deg, var(--accent), #FF8C33);
  border: none;
  color: #fff;
  text-align: center;
  padding: 32px 24px;
}

.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card__title {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card__badge {
  font-size: 1.3rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--accent-light);
  color: var(--accent);
}

.card__hint {
  font-size: 1.2rem;
  color: var(--text-tertiary);
  text-align: center;
  margin-top: 12px;
}

/* ── Motivation Card ── */
.motivation-card {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1a2e 100%);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 16px;
  text-align: center;
}

.motivation-text {
  font-size: 1.6rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

/* ── Creatine Ring ── */
.creatine-ring {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 0 auto 24px;
}

.creatine-ring svg { width: 100%; height: 100%; }

.creatine-ring__inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.creatine-ring__icon { width: 40px; height: 40px; color: #fff; }
.creatine-ring__icon svg { width: 100%; height: 100%; }

.creatine-ring__label {
  font-size: 1.3rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
}

.creatine-btn {
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease;
}

.creatine-btn:active { transform: scale(0.95); }

.creatine-btn.taken {
  background: rgba(255,255,255,0.2);
  color: #fff;
  pointer-events: none;
}

.creatine-undo {
  margin-top: 8px;
}

/* ── Stats Row ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  border: 1px solid var(--border);
  transition: transform 0.2s var(--ease-out);
}

.stat-card:active { transform: scale(0.97); }

.stat-card__number {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.stat-card__label {
  font-size: 1.1rem;
  color: var(--text-tertiary);
  margin-top: 4px;
}

/* ── Calendar ── */
.cal-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cal-nav__btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: var(--bg-alt);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.cal-nav__btn:active { transform: scale(0.9); background: var(--border); }

.cal-nav__label {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  min-width: 65px;
  text-align: center;
}

.cal-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 6px;
}

.cal-day-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-align: center;
  padding: 4px 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cal-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-cell {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  position: relative;
}

.cal-cell--empty { visibility: hidden; }

.cal-cell--taken {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(255, 107, 0, 0.3);
}

.cal-cell--today {
  border: 2px solid var(--accent);
  font-weight: 700;
  color: var(--accent);
}

.cal-cell--today.cal-cell--taken {
  border-color: var(--accent);
  color: #fff;
}

.cal-cell--future {
  color: var(--border);
}

.cal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.cal-summary {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* ── Hydration ── */
.hydration-glasses {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
}

.hydration-glass {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  background: var(--bg-alt);
}

.hydration-glass svg {
  width: 20px;
  height: 20px;
  color: var(--text-tertiary);
  transition: color 0.2s ease;
}

.hydration-glass.filled {
  background: var(--blue-light);
  border-color: var(--blue);
  animation: glassFill 0.3s var(--ease-out);
}

@keyframes glassFill {
  0% { transform: scale(0.8); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.hydration-glass.filled svg { color: var(--blue); }

.hydration-glass:active { transform: scale(0.9); }

/* ── Supply ── */
.supply-bar {
  height: 12px;
  background: var(--bg-alt);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 12px;
}

.supply-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green), #69F0AE);
  border-radius: var(--radius-full);
  transition: width 0.8s var(--ease-out), background 0.5s ease;
  min-width: 4px;
}

.supply-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.3rem;
}

.supply-info span { color: var(--text-secondary); }

.supply-pulse {
  animation: supplyPulse 2s ease-in-out infinite;
}

@keyframes supplyPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.supply-reorder {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  font-size: 1.3rem;
}

/* ── Badges ── */
.badges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.badge-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}

.badge-item__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: transform 0.3s var(--ease-out);
  border: 2px solid var(--border);
}

.badge-item.earned .badge-item__icon {
  background: var(--accent-light);
  border-color: var(--accent);
  animation: badgeEarn 0.5s var(--ease-out);
}

@keyframes badgeEarn {
  0% { transform: scale(0.5); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.badge-item.locked .badge-item__icon {
  opacity: 0.3;
  filter: grayscale(1);
}

.badge-item__label {
  font-size: 1rem;
  color: var(--text-tertiary);
  font-weight: 500;
  line-height: 1.2;
}

.badge-item.earned .badge-item__label { color: var(--text); }

/* ── Daily Tip ── */
.tip-card {
  background: var(--accent-light);
  border-color: rgba(255, 107, 0, 0.15);
}

.tip-card__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.tip-card__icon { font-size: 2rem; }

.tip-card__label {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tip-card__text {
  font-size: 1.4rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Progress / Charts ── */
.progress-view .card { margin-bottom: 16px; }

.progress-view canvas {
  width: 100%;
  height: 140px;
  display: block;
}

.progress-summary {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.progress-stat {
  flex: 1;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
}

.progress-stat__value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.progress-stat__label {
  display: block;
  font-size: 1.1rem;
  color: var(--text-tertiary);
  margin-top: 4px;
}

.chart-empty {
  text-align: center;
  padding: 32px 24px;
  color: var(--text-tertiary);
  font-size: 1.4rem;
}

.chart-empty__icon {
  font-size: 3.2rem;
  margin-bottom: 12px;
}

.history-list { max-height: 400px; overflow-y: auto; }

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 1.4rem;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.history-item--removing {
  opacity: 0;
  transform: translateX(-100%);
}

.history-item:last-child { border-bottom: none; }

.history-item__left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.history-item__right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.history-item__date { color: var(--text-secondary); font-weight: 500; min-width: 50px; }
.history-item__value { color: var(--text); font-weight: 600; }
.history-item__type {
  font-size: 1.1rem;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--bg-alt);
  color: var(--text-tertiary);
  font-weight: 500;
}

.history-item__delete {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: var(--bg-alt);
  color: var(--text-tertiary);
  font-size: 1.6rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  opacity: 0.5;
}

.history-item__delete:hover,
.history-item__delete:active {
  opacity: 1;
  background: var(--red-light);
  color: var(--red);
}

.history-empty {
  text-align: center;
  padding: 32px 24px;
}

.history-empty__icon {
  font-size: 3.2rem;
  margin-bottom: 12px;
}

.history-empty p {
  color: var(--text-tertiary);
  font-size: 1.4rem;
}

.history-empty__hint {
  font-size: 1.2rem !important;
  margin-top: 4px;
}

/* ── Knowledge ── */
.knowledge-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.knowledge-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px 16px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s ease;
}

.knowledge-card:active { transform: scale(0.97); }
.knowledge-card:hover { box-shadow: var(--shadow-md); }

.knowledge-card__icon { font-size: 2.8rem; margin-bottom: 12px; }

.knowledge-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.knowledge-card p {
  font-size: 1.2rem;
  color: var(--text-tertiary);
  line-height: 1.4;
}

.article-view { padding: 20px; }

.article-back {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 24px;
}

.article-content h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.article-content p {
  font-size: 1.5rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.article-content h3 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 24px;
  margin-bottom: 12px;
}

.article-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
}

.article-content li {
  font-size: 1.5rem;
  line-height: 1.7;
  color: var(--text-secondary);
  padding: 6px 0 6px 28px;
  position: relative;
}

.article-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* ── Settings ── */
.settings-group { display: flex; flex-direction: column; gap: 20px; }

.settings-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.settings-label {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text);
}

.settings-item .input--small {
  max-width: 160px;
  text-align: right;
}

.toggle {
  width: 52px;
  height: 30px;
  border-radius: 15px;
  background: var(--border);
  border: none;
  cursor: pointer;
  position: relative;
  transition: background 0.3s ease;
  flex-shrink: 0;
}

.toggle[aria-checked="true"] { background: var(--accent); }

.toggle__slider {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  transition: transform 0.3s var(--ease-out);
}

.toggle[aria-checked="true"] .toggle__slider {
  transform: translateX(22px);
}

.settings-version {
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-tertiary);
  margin-top: 24px;
  padding-bottom: 20px;
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  width: 100%;
  max-width: 480px;
  background: #fff;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: 24px;
  padding-bottom: calc(24px + var(--safe-bottom));
  animation: slideUp 0.3s var(--ease-out);
  max-height: 80vh;
  overflow-y: auto;
}

@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }

.modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal__title { font-size: 1.8rem; font-weight: 600; }

.modal__close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-alt);
  border: none;
  font-size: 2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.modal__body .input--small {
  margin-bottom: 12px;
  text-align: left;
}

.modal__body label {
  display: block;
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.modal__body select {
  width: 100%;
  font-family: var(--font);
  font-size: 1.5rem;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  margin-bottom: 12px;
  outline: none;
  -webkit-appearance: none;
}

.modal__body select:focus { border-color: var(--accent); }

/* ── Confetti ── */
.confetti-canvas {
  position: fixed;
  inset: 0;
  z-index: 300;
  pointer-events: none;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: calc(var(--nav-height) + var(--safe-bottom) + 16px);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-dark);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 1.4rem;
  font-weight: 500;
  z-index: 150;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s var(--ease-out);
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Weekly Goal ── */
.weekly-goal-dots {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 8px 0;
}

.weekly-dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--ease-out);
}

.weekly-dot--filled {
  background: var(--accent);
  border-color: var(--accent);
  animation: badgeEarn 0.4s var(--ease-out);
}

/* ── Workout Start ── */
.workout-start-btn {
  position: relative;
  overflow: hidden;
}

.workout-start-btn svg { flex-shrink: 0; }

/* ── Templates Grid ── */
.templates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.template-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 8px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border);
  background: #fff;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  font-family: var(--font);
}

.template-card:active { transform: scale(0.95); }
.template-card:hover { border-color: var(--tmpl-color, var(--accent)); box-shadow: 0 4px 16px rgba(0,0,0,0.08); }

.template-card__emoji { font-size: 2.4rem; }
.template-card__name { font-size: 1.3rem; font-weight: 600; color: var(--text); }
.template-card__count { font-size: 1.1rem; color: var(--text-tertiary); }

/* ── Active Workout ── */
.active-workout-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.active-workout-timer {
  font-size: 3.6rem;
  font-weight: 800;
  color: var(--accent);
  text-align: center;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* ── Exercise Card ── */
.exercise-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 16px;
  margin-bottom: 12px;
}

.exercise-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.exercise-card__name {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--accent);
}

.exercise-card__sets { margin-bottom: 8px; }

.set-row {
  display: grid;
  grid-template-columns: 40px 1fr 1fr 44px;
  gap: 8px;
  align-items: center;
  padding: 6px 0;
  transition: background 0.2s ease;
}

.set-row--header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  margin-bottom: 4px;
}

.set-row--done { background: var(--green-light); border-radius: var(--radius-sm); padding: 6px 4px; }

.set-col { text-align: center; font-size: 1.2rem; font-weight: 600; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.04em; }
.set-col--num { font-size: 1.4rem; font-weight: 700; color: var(--text); }
.set-col--check { display: flex; justify-content: center; }

.set-input {
  width: 100%;
  text-align: center;
  font-family: var(--font);
  font-size: 1.5rem;
  font-weight: 600;
  padding: 8px 4px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s ease;
  -moz-appearance: textfield;
}

.set-input::-webkit-outer-spin-button,
.set-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.set-input:focus { border-color: var(--accent); background: #fff; }

.set-check-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg-alt);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: all 0.2s var(--ease-out);
}

.set-check-btn:active { transform: scale(0.9); }

.set-check-btn.checked {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
  animation: badgeEarn 0.3s var(--ease-out);
}

.exercise-add-set-btn {
  display: block;
  margin: 0 auto;
  background: none;
  border: none;
  font-family: var(--font);
  cursor: pointer;
}

/* ── Exercise Picker ── */
.exercise-picker { max-height: 60vh; overflow-y: auto; }

.exercise-group { margin-bottom: 20px; }

.exercise-group__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.exercise-pick-btn {
  display: inline-block;
  font-family: var(--font);
  font-size: 1.3rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
  margin: 0 6px 8px 0;
  transition: all 0.2s ease;
}

.exercise-pick-btn:active { transform: scale(0.95); }
.exercise-pick-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }

/* ── Rest Timer ── */
.rest-timer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 250;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.rest-timer-content {
  text-align: center;
  color: #fff;
}

.rest-timer-label {
  font-size: 1.6rem;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.rest-timer-display {
  font-size: 8rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 32px;
  background: linear-gradient(to bottom, #fff, rgba(255,255,255,0.7));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.rest-timer-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.rest-timer-buttons .btn--outline {
  border-color: rgba(255,255,255,0.3);
  color: rgba(255,255,255,0.8);
}

.rest-timer-buttons .btn--outline:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
}

/* ── Workout History ── */
.workout-history-list { max-height: 500px; overflow-y: auto; }

.workout-history-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s ease;
}

.workout-history-item:last-child { border-bottom: none; }
.workout-history-item:active { background: var(--bg-alt); }

.workout-history-item__left { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; }
.workout-history-item__name { font-size: 1.5rem; font-weight: 600; color: var(--text); }
.workout-history-item__detail { font-size: 1.2rem; color: var(--text-secondary); }
.workout-history-item__exercises { font-size: 1.1rem; color: var(--text-tertiary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.workout-history-item__right { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; flex-shrink: 0; }
.workout-history-item__volume { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.workout-history-item__delete {
  width: 24px; height: 24px; border-radius: 50%; border: none;
  background: var(--bg-alt); color: var(--text-tertiary); font-size: 1.4rem;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  opacity: 0.5; transition: all 0.2s ease;
}

.workout-history-item__delete:hover,
.workout-history-item__delete:active { opacity: 1; background: var(--red-light); color: var(--red); }

/* ── Workout Summary ── */
.workout-summary__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.workout-summary__stat {
  text-align: center;
  background: var(--accent-light);
  border-radius: var(--radius-md);
  padding: 16px 8px;
}

.workout-summary__stat-val {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
}

.workout-summary__stat-label {
  display: block;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.workout-summary__ex {
  font-size: 1.4rem;
  color: var(--text-secondary);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}

.workout-summary__ex:last-child { border-bottom: none; }

/* ── Measurements ── */
.measurements-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.measurement-field label {
  display: block;
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.measurements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.measurement-tile {
  text-align: center;
  background: var(--bg-alt);
  border-radius: var(--radius-md);
  padding: 14px 8px;
}

.measurement-tile__val {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
}

.measurement-tile__val small {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text-tertiary);
  margin-left: 2px;
}

.measurement-tile__label {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.meas-delta {
  font-size: 1rem;
  font-weight: 600;
}

.meas-delta--up { color: var(--green); }
.meas-delta--down { color: var(--red); }

/* ── Confirm Modal ── */
.confirm-modal {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 32px 24px 24px;
  max-width: 340px;
  width: 90%;
  text-align: center;
  animation: modalPop 0.25s var(--ease-out);
}

@keyframes modalPop {
  from { transform: scale(0.85); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.confirm-modal__icon {
  font-size: 3.6rem;
  margin-bottom: 12px;
}

.confirm-modal__title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.confirm-modal__msg {
  font-size: 1.3rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}

.confirm-modal__actions {
  display: flex;
  gap: 10px;
}

.btn--danger {
  background: #e74c3c;
  color: #fff;
  border: none;
}

.btn--danger:active {
  background: #c0392b;
}

/* ── Auth ── */
.auth-user-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.auth-user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.auth-user-email {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
}

.auth-sync-status {
  font-size: 1.2rem;
  color: var(--text-tertiary);
  margin-top: 2px;
}

/* ── Photo Gallery ── */
.photo-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.photo-gallery__item {
  cursor: pointer;
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: transform 0.2s var(--ease-out);
  background: var(--bg-alt);
}

.photo-gallery__item:active { transform: scale(0.95); }

.photo-gallery__img-wrap {
  aspect-ratio: 1;
  overflow: hidden;
}

.photo-gallery__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-gallery__info {
  padding: 6px 8px;
}

.photo-gallery__date {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  display: block;
}

.photo-gallery__note {
  font-size: 1rem;
  color: var(--text-secondary);
  display: block;
}

.photo-gallery__cat {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ── Responsive ── */
@media (min-width: 480px) {
  .main { max-width: 480px; margin: 0 auto; }
  .modal { border-radius: var(--radius-xl); margin-bottom: 20px; }
}

@media (max-width: 360px) {
  .templates-grid { grid-template-columns: repeat(2, 1fr); }
  .measurements-grid { grid-template-columns: repeat(2, 1fr); }
  .rest-timer-display { font-size: 6rem; }
}