/* SIP — hydration tracker (Blinker-family lab toy) */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;700&display=swap');

:root {
  --bg0: #070b12;
  --bg1: #0c1420;
  --panel: rgba(120, 190, 255, 0.06);
  --line: rgba(120, 190, 255, 0.14);
  --text: #e8f4ff;
  --muted: #7a9bb8;
  --accent: #5ec8ff;
  --accent2: #3d8fd9;
  --good: #5dffb0;
  --warn: #ffc857;
  --danger: #ff6b8a;
  --glow: rgba(94, 200, 255, 0.35);
  --radius: 16px;
  --font: 'Outfit', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }

body {
  min-height: 100%;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(62, 140, 220, 0.18), transparent 55%),
    radial-gradient(800px 500px at 100% 100%, rgba(40, 100, 180, 0.12), transparent 50%),
    var(--bg0);
  -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; color: inherit; }

.app {
  width: min(440px, 100%);
  margin: 0 auto;
  padding: 1rem 1rem 2.5rem;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  background: linear-gradient(145deg, rgba(94,200,255,0.2), rgba(40,90,160,0.15));
  border: 1px solid var(--line);
  box-shadow: 0 0 20px var(--glow);
}

.brand h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0.1rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  font-family: var(--mono);
}

.header-actions {
  display: flex;
  gap: 0.35rem;
}

.btn {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 12px;
  padding: 0.45rem 0.65rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}

.btn:hover {
  border-color: rgba(94, 200, 255, 0.4);
  background: rgba(94, 200, 255, 0.1);
}

.btn:active { transform: scale(0.97); }

.btn-ghost { background: transparent; }

a.btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
}

/* XP */
.xp-bar-wrap { margin-bottom: 0.85rem; }
.xp-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--muted);
  font-family: var(--mono);
  margin-bottom: 0.35rem;
}
.xp-track {
  height: 8px;
  border-radius: 99px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
  border: 1px solid var(--line);
}
.xp-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent2), var(--accent), var(--good));
  box-shadow: 0 0 12px var(--glow);
  transition: width 0.35s ease;
}

/* Stage */
.sip-stage {
  text-align: center;
  margin: 0.5rem 0 1rem;
}

.glass-wrap {
  position: relative;
  width: 160px;
  height: 220px;
  margin: 0 auto 1rem;
  filter: drop-shadow(0 12px 30px rgba(40, 120, 200, 0.25));
}

.glass {
  position: absolute;
  inset: 0;
  border-radius: 18px 18px 28px 28px / 14px 14px 36px 36px;
  border: 2px solid rgba(160, 210, 255, 0.45);
  background: linear-gradient(180deg, rgba(210,235,255,0.22), rgba(80,140,200,0.1));
  overflow: hidden;
  backdrop-filter: blur(4px);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  /* no pointer cursor — secret taps stay unadvertised */
}

.glass::before {
  content: '';
  position: absolute;
  left: 10%;
  top: 8%;
  width: 14%;
  height: 55%;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.25), transparent);
  pointer-events: none;
}

.water {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 20%;
  background: linear-gradient(180deg, rgba(94,200,255,0.75), rgba(30,100,180,0.9));
  transition: height 0.45s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.35s ease, box-shadow 0.35s ease;
  box-shadow: 0 0 24px rgba(94, 200, 255, 0.35);
  --wave: rgba(150, 220, 255, 0.55);
}

.water::before {
  content: '';
  position: absolute;
  left: -10%;
  right: -10%;
  top: -8px;
  height: 16px;
  border-radius: 50%;
  background: var(--wave);
  animation: wave 2.4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes wave {
  0%, 100% { transform: translateX(-4%) scaleY(1); }
  50% { transform: translateX(4%) scaleY(1.15); }
}

.glass-label {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: rgba(200, 230, 255, 0.55);
  pointer-events: none;
  text-transform: uppercase;
  padding-top: 2.5rem;
}

.sip-btn {
  width: min(100%, 280px);
  border: none;
  border-radius: 999px;
  padding: 1rem 1.25rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  color: #041018;
  background: linear-gradient(135deg, #7ad7ff, #4aa3ff 50%, #5dffb0);
  box-shadow: 0 8px 28px rgba(80, 170, 255, 0.35);
  transition: transform 0.12s, box-shadow 0.12s, filter 0.12s;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.sip-btn:hover { filter: brightness(1.05); }
.sip-btn:active, .sip-btn.held {
  transform: scale(0.97);
  box-shadow: 0 4px 16px rgba(80, 170, 255, 0.4);
}

.sip-btn .sub {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0.75;
  margin-top: 0.15rem;
  font-family: var(--mono);
}

.hint {
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hint strong { color: var(--accent); font-weight: 600; }

/* Combo */
.combo-banner {
  text-align: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 16px var(--glow);
}

/* Panels */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.95rem 1rem;
  margin-bottom: 0.75rem;
}

.panel-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--mono);
}

.total-value {
  margin: 0.25rem 0 0.5rem;
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(180deg, #fff, #8ecfff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.goal-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0.55rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.goal-track {
  height: 6px;
  border-radius: 99px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
}

.goal-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent2), var(--good));
  border-radius: inherit;
  transition: width 0.3s ease;
}

.session-meta {
  margin: 0.55rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  font-family: var(--mono);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.65rem 0.5rem;
  text-align: center;
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--mono);
}

.stat-value {
  display: block;
  margin-top: 0.2rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.65rem;
}

.section-head h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.section-meta {
  color: var(--muted);
  font-size: 0.8rem;
  font-family: var(--mono);
}

.badge-grid, .skin-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
}

.badge, .skin {
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.2);
  border-radius: 12px;
  padding: 0.55rem 0.4rem;
  text-align: center;
  font-size: 0.72rem;
  color: var(--muted);
  min-height: 4.2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
}

.badge.got, .skin.owned {
  color: var(--text);
  border-color: rgba(94, 200, 255, 0.35);
  background: rgba(94, 200, 255, 0.08);
}

.badge .emoji, .skin .swatch {
  font-size: 1.25rem;
}

.skin .swatch {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.skin.active {
  box-shadow: 0 0 0 1px var(--accent), 0 0 16px var(--glow);
}

.skin {
  cursor: pointer;
  gap: 0.25rem;
}

.skin .skin-name {
  font-size: 0.72rem;
  font-weight: 600;
  color: inherit;
  line-height: 1.15;
}

.skin .skin-req {
  font-size: 0.65rem;
  opacity: 0.75;
  font-family: var(--mono);
}

.skin.locked {
  opacity: 0.45;
  cursor: not-allowed;
}

.skin:disabled {
  cursor: not-allowed;
}

.skin .swatch {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  border: 1px solid var(--line);
  box-shadow: inset 0 0 8px rgba(0,0,0,0.2);
}

.history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 160px;
  overflow: auto;
}

.history-list li {
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.88rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
}

.history-list li strong { color: var(--text); font-weight: 600; }
.history-empty { color: var(--muted); font-size: 0.9rem; }

.quick-row {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}

.quick-row .btn { flex: 1; }

.danger-zone .danger-copy {
  margin: 0 0 0.65rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.danger-actions {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.btn-danger {
  border-color: rgba(255, 107, 138, 0.4);
  color: var(--danger);
}

.footer {
  text-align: center;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.footer kbd {
  font-family: var(--mono);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.05rem 0.3rem;
  color: var(--accent);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%) translateY(12px);
  background: #0e1a28;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 0.65rem 1rem;
  border-radius: 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 50;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  max-width: 90vw;
}

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

.modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 14, 0.72);
  display: grid;
  place-items: center;
  z-index: 60;
  padding: 1rem;
}

.modal[hidden] { display: none !important; }

.modal-card {
  width: min(340px, 100%);
  background: var(--bg1);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.25rem;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}

.modal-emoji { font-size: 2rem; margin-bottom: 0.35rem; }
.modal-card h2 { margin: 0 0 0.35rem; font-size: 1.25rem; }
.modal-card p { margin: 0 0 1rem; color: var(--muted); font-size: 0.95rem; }
.modal-card .btn { width: 100%; }

.skins-panel[hidden] { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  .water::before { animation: none; }
  .xp-fill, .goal-fill, .water { transition: none; }
}