/* ========================================================================
   300 BLK Zero Calc — Tactical precision UI
   ======================================================================== */
/* =========================
   THEME VARIABLES
========================= */

:root {
  --bg0: #020617;
  --bg1: #07111f;
  --panel: rgba(15, 23, 42, 0.78);
  --panel2: rgba(30, 41, 59, 0.72);
  --ink: #f8fafc;
  --muted: #9ca3af;
  --soft: #cbd5e1;
  --accent: #f59e0b;
  --accent2: #fbbf24;
  --good: #22c55e;
  --bad: #ef4444;
  --line: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg0);
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 22px;
  font-family: "Satoshi", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(245, 158, 11, 0.24), transparent 34%),
    radial-gradient(circle at 88% 12%, rgba(59, 130, 246, 0.16), transparent 32%),
    radial-gradient(circle at 60% 90%, rgba(34, 197, 94, 0.10), transparent 30%),
    linear-gradient(145deg, #020617, #07111f 48%, #0f172a);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at top, black, transparent 72%);
}

.topbar,
.panel,
.card,
.legal {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(15,23,42,.88), rgba(15,23,42,.66));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.topbar::after,
.panel::after,
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,.14), transparent 30%, transparent 70%, rgba(245,158,11,.08));
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 18px;
  margin-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.logo {
  width: 44px;
  height: 44px;
  color: var(--accent);
  flex: 0 0 auto;
  filter: drop-shadow(0 0 18px rgba(245,158,11,.45));
}

.brand-title {
  display: block;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .14em;
}

.brand-sub {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.theme-toggle {
  width: 46px;
  min-height: 46px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(2, 6, 23, .72);
  color: var(--accent2);
  display: grid;
  place-items: center;
  cursor: pointer;
}

.app {
  display: grid;
  grid-template-columns: minmax(330px, 440px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.panel,
.card {
  padding: 20px;
}

.panel-output {
  display: grid;
  gap: 18px;
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 0;
  backdrop-filter: none;
}

.panel-output::after {
  display: none;
}

.panel-label,
.group-title {
  color: var(--accent2);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .16em;
}

.panel-title {
  margin: 5px 0 0;
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.05;
  font-weight: 900;
}

.group {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.field {
  display: grid;
  gap: 7px;
  margin-top: 14px;
}

.field-label {
  font-size: 13px;
  font-weight: 800;
  color: var(--soft);
}

.field-unit {
  margin-left: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
}

.field-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 154px;
  gap: 12px;
  align-items: end;
}

input,
select,
button {
  width: 100%;
  min-height: 48px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(2,6,23,.92), rgba(15,23,42,.72));
  color: var(--ink);
  font-size: 16px;
  padding: 12px 14px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
}

input:focus,
select:focus,
button:focus {
  outline: 2px solid rgba(245,158,11,.8);
  outline-offset: 2px;
}

select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--accent2) 50%),
    linear-gradient(135deg, var(--accent2) 50%, transparent 50%),
    linear-gradient(180deg, rgba(2,6,23,.92), rgba(15,23,42,.72));
  background-position:
    calc(100% - 20px) 21px,
    calc(100% - 14px) 21px,
    0 0;
  background-size: 6px 6px, 6px 6px, 100% 100%;
  background-repeat: no-repeat;
  padding-right: 38px;
}

.toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  border: 0;
  margin: 0;
  padding: 0;
}

.toggle input {
  display: none;
}

.toggle label {
  min-height: 48px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(2, 6, 23, .72);
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
}

.toggle input:checked + label {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #111827;
  box-shadow: 0 12px 28px rgba(245,158,11,.28);
}

.panel-foot {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 12px;
  align-items: center;
  margin-top: 18px;
}

.btn {
  border: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #111827;
  font-weight: 950;
  cursor: pointer;
  box-shadow: 0 14px 32px rgba(245,158,11,.24);
}

.btn:hover,
.theme-toggle:hover,
.toggle label:hover {
  transform: translateY(-1px);
}

.meta,
.card-sub,
.card-note,
.dial-detail,
.dial-axis,
.dial-unit,
.legal {
  color: var(--muted);
}

.card-head {
  display: grid;
  gap: 4px;
}

.dial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 16px;
}

.dial {
  position: relative;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 20% 15%, rgba(245,158,11,.18), transparent 35%),
    linear-gradient(180deg, rgba(2,6,23,.92), rgba(15,23,42,.72));
  overflow: hidden;
}

.dial::before {
  content: "";
  position: absolute;
  inset: auto -20% -45% -20%;
  height: 90%;
  background: radial-gradient(circle, rgba(245,158,11,.18), transparent 62%);
}

.dial-axis {
  position: relative;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.dial-value {
  position: relative;
  margin-top: 10px;
  color: var(--accent2);
  font-size: 22px;
  font-weight: 950;
}

.dial-number {
  position: relative;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: clamp(42px, 6vw, 64px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.06em;
}

.traj-chart {
  height: 210px;
  margin: 16px 0;
  border-radius: 22px;
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px),
    radial-gradient(circle at 50% 20%, rgba(245,158,11,.16), transparent 40%),
    rgba(2,6,23,.76);
  background-size: 28px 28px, 28px 28px, auto, auto;
  overflow: hidden;
}

#traj-svg {
  width: 100%;
  height: 100%;
}

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 18px;
  border: 1px solid var(--line);
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: rgba(2,6,23,.52);
}

th,
td {
  padding: 13px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  color: var(--accent2);
  background: rgba(15,23,42,.96);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
}

td {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
}

tr:hover td {
  background: rgba(245,158,11,.06);
}

.card-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.55;
}

.legal {
  margin-top: 18px;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
}

@media (max-width: 900px) {
  body {
    padding: 12px;
  }

  .topbar {
    align-items: flex-start;
  }

  .brand-sub {
    white-space: normal;
  }

  .app,
  .field-row,
  .dial-grid,
  .panel-foot {
    grid-template-columns: 1fr;
  }

  .panel,
  .card {
    padding: 16px;
    border-radius: 20px;
  }

  .traj-chart {
    height: 180px;
  }

  .legal {
    flex-direction: column;
  }
}

body.light {
  --bg0: #f8fafc;
  --bg1: #e5e7eb;
  --panel: rgba(255, 255, 255, 0.82);
  --panel2: rgba(255, 255, 255, 0.72);
  --ink: #0f172a;
  --muted: #64748b;
  --soft: #334155;
  --line: rgba(15, 23, 42, 0.14);
  background:
    radial-gradient(circle at 12% 8%, rgba(245, 158, 11, 0.24), transparent 34%),
    linear-gradient(145deg, #f8fafc, #e2e8f0);
}

/* =========================
   iPHONE OPTIMIZATION
========================= */

html {
  -webkit-text-size-adjust: 100%;
}

body {
  padding-left: max(12px, env(safe-area-inset-left));
  padding-right: max(12px, env(safe-area-inset-right));
  padding-bottom: max(18px, env(safe-area-inset-bottom));
  overscroll-behavior-y: none;
}

input,
select,
button,
.toggle label {
  min-height: 48px;
  font-size: 16px;
  touch-action: manipulation;
}

button,
.theme-toggle,
.toggle label {
  -webkit-tap-highlight-color: transparent;
}

input,
select {
  appearance: none;
  -webkit-appearance: none;
}

.app {
  width: 100%;
  max-width: 100%;
}

.panel-inputs {
  position: static;
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-wrap::after {
  content: "Swipe table →";
  display: block;
  padding: 8px 12px;
  color: var(--muted);
  font-size: 11px;
  text-align: right;
}

@media (max-width: 600px) {
  body {
    padding-top: 10px;
  }

  .topbar {
    padding: 14px;
    border-radius: 18px;
  }

  .brand {
    gap: 10px;
  }

  .logo {
    width: 36px;
    height: 36px;
  }

  .brand-title {
    font-size: 12px;
    letter-spacing: 0.1em;
  }

  .brand-sub {
    font-size: 11px;
    line-height: 1.3;
  }

  .theme-toggle {
    width: 42px;
    min-height: 42px;
    border-radius: 14px;
    flex: 0 0 42px;
  }

  .panel-title {
    font-size: 22px;
  }

  .group {
    margin-top: 16px;
    padding-top: 16px;
  }

  .field {
    margin-top: 12px;
  }

  .field-label {
    font-size: 13px;
  }

  .field-unit {
    display: block;
    margin-left: 0;
    margin-top: 2px;
  }

  input,
  select {
    padding: 13px 14px;
  }

  .dial {
    padding: 16px;
  }

  .dial-number {
    font-size: 52px;
  }

  .traj-chart {
    height: 150px;
  }

  .card-note {
    font-size: 12px;
  }

  table {
    min-width: 650px;
  }

  th,
  td {
    padding: 11px 10px;
    font-size: 12px;
  }

  .legal {
    font-size: 11px;
    line-height: 1.4;
  }
}

@media (max-width: 390px) {
  body {
    padding-left: 10px;
    padding-right: 10px;
  }

  .panel,
  .card {
    padding: 14px;
  }

  .panel-title {
    font-size: 20px;
  }

  .dial-number {
    font-size: 46px;
  }

  .traj-chart {
    height: 135px;
  }

  table {
    min-width: 610px;
  }
}