:root {
  --bg: #070a12;
  --card: rgba(12, 16, 28, 0.70);
  --text: #e8ecf5;
  --muted: rgba(232, 236, 245, 0.70);
  --line: rgba(255, 255, 255, 0.10);
  --shadow: 0 18px 40px rgba(0,0,0,0.35);
  --radius: 18px;

  --accent: #3aa3ff;
  --accent2: #23d3a6;
  --danger: #ff4f6d;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background-color: var(--bg);
  overflow-x: hidden;
}

/* ===== Animated backgrounds (subtle) ===== */
body::before,
body::after {
  content: "";
  position: fixed;
  inset: -20%;
  z-index: -2;
  opacity: 0.9;
  pointer-events: none;
}

body::before {
  filter: blur(30px);
  animation: drift 18s ease-in-out infinite;
}
body::after {
  z-index: -1;
  mix-blend-mode: screen;
  opacity: 0.12;
  filter: blur(18px);
  animation: drift2 24s ease-in-out infinite;
}

@keyframes drift {
  0% { transform: translate3d(-2%, -2%, 0) scale(1.05); }
  50% { transform: translate3d(2%, 2%, 0) scale(1.08); }
  100% { transform: translate3d(-2%, -2%, 0) scale(1.05); }
}
@keyframes drift2 {
  0% { transform: translate3d(2%, -1%, 0) scale(1.06); }
  50% { transform: translate3d(-2%, 2%, 0) scale(1.10); }
  100% { transform: translate3d(2%, -1%, 0) scale(1.06); }
}

/* Swim: dark flowing water */
.bg-swim::before {
  background:
    radial-gradient(900px 500px at 20% 20%, rgba(58,163,255,0.38), transparent 60%),
    radial-gradient(900px 600px at 80% 30%, rgba(35,211,166,0.22), transparent 60%),
    radial-gradient(1000px 700px at 50% 90%, rgba(20,80,160,0.30), transparent 65%),
    linear-gradient(180deg, #060815, #03040a 70%);
}
.bg-swim::after {
  background:
    repeating-linear-gradient(120deg,
      rgba(255,255,255,0.08) 0px,
      rgba(255,255,255,0.08) 2px,
      transparent 8px,
      transparent 24px);
}

/* Bodyweight: slightly warmer slate */
.bg-bw::before {
  background:
    radial-gradient(900px 500px at 30% 20%, rgba(35,211,166,0.20), transparent 60%),
    radial-gradient(900px 600px at 80% 40%, rgba(58,163,255,0.18), transparent 60%),
    linear-gradient(180deg, #070a12, #040610 75%);
}
.bg-bw::after {
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.10), transparent 35%),
    radial-gradient(circle at 70% 50%, rgba(255,255,255,0.08), transparent 40%);
}

/* Gym: darker, more “metal” */
.bg-gym::before {
  background:
    radial-gradient(900px 600px at 25% 30%, rgba(58,163,255,0.20), transparent 60%),
    radial-gradient(900px 600px at 70% 30%, rgba(255,255,255,0.06), transparent 60%),
    linear-gradient(180deg, #070a12, #03040a 80%);
}
.bg-gym::after {
  background:
    repeating-linear-gradient(135deg,
      rgba(255,255,255,0.06) 0px,
      rgba(255,255,255,0.06) 1px,
      transparent 10px,
      transparent 26px);
}

/* Times: clean data vibe */
.bg-times::before {
  background:
    radial-gradient(900px 600px at 20% 30%, rgba(35,211,166,0.22), transparent 60%),
    radial-gradient(900px 600px at 80% 20%, rgba(58,163,255,0.20), transparent 60%),
    linear-gradient(180deg, #070a12, #040610 80%);
}
.bg-times::after {
  background:
    repeating-linear-gradient(0deg,
      rgba(255,255,255,0.08) 0px,
      rgba(255,255,255,0.08) 1px,
      transparent 22px,
      transparent 44px),
    repeating-linear-gradient(90deg,
      rgba(255,255,255,0.06) 0px,
      rgba(255,255,255,0.06) 1px,
      transparent 26px,
      transparent 52px);
}

/* ===== Topbar + hamburger ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(7, 10, 18, 0.55);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand-title { font-weight: 750; letter-spacing: 0.2px; }
.brand-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }

.hamburger {
  width: 44px; height: 40px;
  border: 1px solid var(--line);
  background: rgba(12,16,28,0.55);
  border-radius: 12px;
  display: grid;
  place-content: center;
  gap: 5px;
  cursor: pointer;
}
.hamburger span {
  width: 18px;
  height: 2px;
  background: rgba(232,236,245,0.9);
  border-radius: 2px;
  display: block;
}

.ghost {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  border-radius: 12px;
  padding: 8px 10px;
  cursor: pointer;
}

/* ===== Menu overlay + drawer ===== */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 25;
}

.menu {
  position: fixed;
  top: 0; left: 0;
  width: 320px;
  height: 100vh;
  z-index: 30;
  border-right: 1px solid var(--line);
  background: rgba(7,10,18,0.72);
  backdrop-filter: blur(14px);
  padding: 14px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.menu.hidden, .overlay.hidden { display: none !important; }

.menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.menu-title { font-weight: 750; font-size: 16px; }

.menu-items {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.menu-item {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(12,16,28,0.55);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  text-align: left;
}
.menu-item.active {
  border-color: rgba(58,163,255,0.65);
  background: rgba(58,163,255,0.12);
}
.icon { width: 22px; display: inline-flex; justify-content: center; }

.menu-divider {
  height: 1px;
  background: var(--line);
  margin: 14px 0;
}

.menu-favs {
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.menu-favs-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.saved-list {
  margin-top: 10px;
  overflow: auto;
  padding-right: 6px;
  display: grid;
  gap: 10px;
}

.menu-foot { margin-top: auto; padding-top: 10px; }

/* ===== Layout ===== */
.main {
  max-width: 1100px;
  padding: 18px 16px 42px;
  margin: 0 auto;
}

.about-open {
  padding: 14px 2px 10px;
}
.about-open h3 {
  margin: 10px 0 8px;
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.about-open p { margin: 0 0 10px; }
.muted { color: var(--muted); }
.tiny { font-size: 12px; }

.view { margin-top: 10px; }
.hidden { display: none !important; }

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: var(--card);
  box-shadow: var(--shadow);
  margin: 14px 0;
}

.card h2 { margin: 0 0 10px; font-size: 18px; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

input, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: rgba(8,10,18,0.55);
  color: var(--text);
  border-radius: 12px;
  outline: none;
}
input:focus, select:focus {
  border-color: rgba(58,163,255,0.85);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

button {
  border: 1px solid var(--line);
  background: rgba(8,10,18,0.35);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
}
button:disabled { opacity: 0.55; cursor: not-allowed; }
button.primary { border: 0; background: linear-gradient(180deg, rgba(58,163,255,1), rgba(35,211,166,0.95)); }
button.secondary { background: rgba(58,163,255,0.14); border: 1px solid rgba(58,163,255,0.35); }
button.danger { background: rgba(255,79,109,0.16); border: 1px solid rgba(255,79,109,0.35); }

.divider { height: 1px; background: var(--line); margin: 16px 0; }

.output {
  margin-top: 14px;
  border: 1px dashed rgba(255,255,255,0.22);
  border-radius: 14px;
  padding: 14px;
  min-height: 90px;
  background: rgba(8,10,18,0.28);
  white-space: pre-wrap;
  line-height: 1.45;
}

.saved-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  background: rgba(12,16,28,0.78);
  cursor: pointer;
}
.saved-card:hover { border-color: rgba(58,163,255,0.55); }
.saved-card .title { font-weight: 700; margin-bottom: 6px; }
.saved-card .meta { color: var(--muted); font-size: 12px; }
.saved-card .row { display: flex; gap: 8px; margin-top: 10px; }
.saved-card .row button { flex: 1; padding: 8px 10px; border-radius: 12px; }

.footer { margin-top: 18px; }

/* Times page */
.chart-wrap {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  background: rgba(8,10,18,0.22);
}
.table-wrap {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  background: rgba(8,10,18,0.18);
}
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.table th, .table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(35,211,166,0.35);
  background: rgba(35,211,166,0.10);
  color: rgba(232,236,245,0.95);
  font-size: 12px;
}
.stats-row {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.stat {
  border: 1px solid var(--line);
  background: rgba(8,10,18,0.22);
  border-radius: 14px;
  padding: 10px 12px;
  font-size: 13px;
}

.goal-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.goal-actions button { justify-self: start; }

@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .menu { width: min(92vw, 340px); }
}