:root {
  --bg: #0f1216;
  --bg-elev: #12161b;
  --text: #e6e9ee;
  --muted: #9aa4b2;
  --accent-700: #0f766e; /* default: teal theme */
  --accent-600: #0ea5a4;
  --accent-500: #14b8a6;
  --accent-400: #2dd4bf;
  --accent-300: #5eead4;
  --focus-glow: 0 0 28px rgba(20, 184, 166, 0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 70% -10%, rgba(20,184,166,0.07), transparent),
              radial-gradient(1000px 700px at -20% 110%, rgba(94,234,212,0.06), transparent),
              var(--bg);
  color-scheme: dark;
}
body.no-scroll { overflow: hidden; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid #1b222b; background: rgba(10,12,15,0.7);
  backdrop-filter: blur(6px);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.app-icon { width: 24px; height: 24px; }
.top-actions { display: flex; gap: 8px; align-items: center; }

.layout {
  display: grid; grid-template-columns: 1fr; gap: 16px; padding: 16px; max-width: 1100px; margin: 0 auto;
}
@media (min-width: 920px) {
  .layout { grid-template-columns: 1.05fr 0.95fr; }
}

.panel { background: var(--bg-elev); border: 1px solid #1b222b; border-radius: 14px; padding: 16px; }
.timer-panel { display: grid; gap: 16px; justify-items: center; }
.side-panel { display: grid; gap: 16px; align-content: start; }

.state-indicator { color: var(--muted); letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600; }

.timer { display: grid; place-items: center; gap: 16px; }
.ring { filter: drop-shadow(0 6px 32px rgba(20, 184, 166, 0.25)); width: clamp(180px, 60vw, 260px); height: auto; }
.ring .bg { fill: none; stroke: #1b222b; stroke-width: 10; opacity: 0.8; }
.ring .progress { fill: none; stroke-width: 10; stroke-linecap: round; transform: rotate(-90deg); transform-origin: 60px 60px; }

.time-display { font-size: clamp(34px, 8vw, 46px); font-weight: 700; letter-spacing: 1px; text-shadow: var(--focus-glow); }
.task-input input { width: 240px; padding: 10px 12px; border-radius: 10px; background: #0c0f13; border: 1px solid #1e2630; color: var(--text); }

.timer-controls { display: flex; gap: 10px; }
button { border: none; border-radius: 10px; padding: 10px 14px; font-weight: 600; color: var(--text); background: #161c23; border: 1px solid #202a35; cursor: pointer; }
button:hover { background: #1a2129; }
button.primary { background: linear-gradient(135deg, var(--accent-700), var(--accent-500)); border: none; box-shadow: var(--focus-glow); }
button.primary:hover { filter: brightness(1.05); }
button.ghost { background: transparent; border: 1px solid #212a36; }
button.small { padding: 8px 10px; font-size: 13px; }

.session-track { display: flex; gap: 8px; }
.session-track::before { content: "Cycle:"; color: var(--muted); margin-right: 8px; }
.session-track .dot { width: 10px; height: 10px; border-radius: 999px; background: #293241; border: 1px solid #324055; }
.session-track .dot.done { background: var(--accent-500); box-shadow: var(--focus-glow); }
.session-track .dot.active { outline: 2px solid var(--accent-400); }

.quick-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; width: 100%; }
.stat { background: #0c0f13; border: 1px solid #1b222b; border-radius: 10px; padding: 10px; text-align: center; }
.stat span { display: block; font-size: 20px; font-weight: 700; }
.stat label { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }

.controls h3, .log h3 { margin: 8px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.controls label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
.controls input[type="number"], .controls select, .controls input[type="range"] {
  width: 100%; padding: 10px 12px; border-radius: 10px; background: #0c0f13; border: 1px solid #1e2630; color: var(--text);
}
.controls select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24'%3E%3Cpath fill='%23e6e9ee' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center; padding-right: 36px;
}
select, option { background-color: #0c0f13; color: var(--text); }
input[type="range"], input[type="checkbox"] { accent-color: var(--accent-500); }
.checkbox { align-items: center; grid-template-columns: auto 1fr; gap: 8px; }

.goals { display: grid; gap: 10px; }
.goal .label { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.goal .bar { height: 10px; background: #11161d; border: 1px solid #1c2631; border-radius: 999px; overflow: hidden; }
.goal .bar .fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent-700), var(--accent-400)); box-shadow: var(--focus-glow); transition: width .4s ease; }

.log ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.log li { display: flex; justify-content: space-between; padding: 8px 10px; background: #0c0f13; border: 1px solid #1b222b; border-radius: 10px; color: #d7dee8; }
.log .meta { color: var(--muted); font-size: 12px; }

.drawer { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; pointer-events: none; transition: opacity .25s ease; z-index: 100; }
.drawer.open { opacity: 1; pointer-events: auto; }
.drawer .drawer-inner { position: absolute; right: 0; top: 0; height: 100%; width: min(720px, 92vw); background: var(--bg-elev); border-left: 1px solid #1b222b; padding: 16px; box-shadow: -10px 0 30px rgba(0,0,0,0.4); overflow: auto; transform: translateX(100%); transition: transform .3s ease; }
.drawer.open .drawer-inner { transform: translateX(0); }
.drawer header { display: flex; justify-content: space-between; align-items: center; }

@media (max-width: 700px) {
  .drawer .drawer-inner {
    left: 0; right: 0; top: auto; bottom: 0; height: 85%; width: 100vw;
    border-left: none; border-top: 1px solid #1b222b;
    border-top-left-radius: 14px; border-top-right-radius: 14px;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.4);
    transform: translateY(100%);
  }
  .drawer.open .drawer-inner { transform: translateY(0); }
}

.stats-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 900px) { .stats-grid { grid-template-columns: 1fr 1fr; } }
.card { background: #0c0f13; border: 1px solid #1b222b; border-radius: 12px; padding: 12px; }
.center { text-align: center; }
.rank-badge { display: inline-block; padding: 10px 14px; border-radius: 999px; border: 1px solid #243041; background: linear-gradient(135deg, #0b1117, #121922); box-shadow: var(--focus-glow); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { padding: 6px 10px; border-radius: 999px; background: #10161d; border: 1px solid #19222d; font-size: 13px; }

.store-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 700px) { .store-grid { grid-template-columns: 1fr 1fr; } }
.store-item { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 10px; border: 1px solid #1b222b; border-radius: 12px; background: #0c0f13; }
.pill { padding: 6px 10px; border-radius: 999px; font-weight: 600; font-size: 12px; color: #0b141b; background: linear-gradient(135deg, var(--accent-300), var(--accent-500)); }
.owned { background: #0e141b; color: var(--muted); border: 1px dashed #263244; }

.toast { position: fixed !important; top: 20px; left: 50%; transform: translate(-50%, -12px); display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: center; background: #0c0f13; border: 1px solid #1b222b; border-radius: 14px; padding: 10px 14px; box-shadow: 0 8px 30px rgba(0,0,0,0.4); z-index: 200; pointer-events: none; opacity: 0; transition: opacity .3s ease, transform .3s ease; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.scroll-hide { opacity: 0; transform: translate(-50%, -120%); }
.toast .glow { width: 16px; height: 16px; background: radial-gradient(circle at center, var(--accent-300), transparent 70%); border-radius: 50%; filter: blur(1px); }
.toast .title { font-weight: 700; }
.toast .subtitle { color: var(--muted); font-size: 13px; }

/* Theme variants via CSS variables */
[data-theme="slate"] { --accent-700:#334155;--accent-600:#3f4a5a;--accent-500:#556377;--accent-400:#6b7a91;--accent-300:#8da0bb; }
[data-theme="teal"]  { --accent-700:#0f766e;--accent-600:#0ea5a4;--accent-500:#14b8a6;--accent-400:#2dd4bf;--accent-300:#5eead4; }
[data-theme="amber"] { --accent-700:#b45309;--accent-600:#d97706;--accent-500:#f59e0b;--accent-400:#fbbf24;--accent-300:#fcd34d; }
[data-theme="blue"]  { --accent-700:#1d4ed8;--accent-600:#2563eb;--accent-500:#3b82f6;--accent-400:#60a5fa;--accent-300:#93c5fd; }
[data-theme="purple"]{ --accent-700:#6d28d9;--accent-600:#7c3aed;--accent-500:#8b5cf6;--accent-400:#a78bfa;--accent-300:#c4b5fd; }

.note { color: var(--muted); font-size: 13px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .goal .bar .fill { transition: none; }
}

/* Mobile tweaks */
@media (max-width: 520px) {
  .grid-2 { grid-template-columns: 1fr; }
  .top-actions { gap: 4px; }
}

/* Prevent toast from covering the top navigation on mobile */
@media (max-width: 700px) {
  .toast { top: 64px; }
}