:root {
  --bg: #07110f;
  --panel: rgba(16, 31, 28, 0.82);
  --panel-strong: #10231f;
  --line: rgba(203, 239, 224, 0.13);
  --text: #f0f7f3;
  --muted: #91aaa0;
  --accent: #a8ff3e;
  --accent-soft: rgba(168, 255, 62, 0.12);
  --danger: #ff7d78;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 48% -20%, #163e32 0, transparent 38%),
    var(--bg);
  color: var(--text);
  font-family: "Noto Sans Thai", "Leelawadee UI", system-ui, sans-serif;
}

button, input { font: inherit; }

.ambient {
  position: fixed;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  filter: blur(130px);
  opacity: 0.11;
  pointer-events: none;
}

.ambient-one { top: 20%; left: -22rem; background: var(--accent); }
.ambient-two { right: -24rem; bottom: -10rem; background: #42d9b0; }

.shell {
  position: relative;
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding-bottom: 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; gap: 12px; align-items: center; color: inherit; text-decoration: none; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(168, 255, 62, 0.48);
  border-radius: 12px;
  color: var(--accent);
  font: 700 13px/1 system-ui, sans-serif;
  letter-spacing: .08em;
  box-shadow: inset 0 0 18px rgba(168, 255, 62, 0.08);
}

.brand strong, .brand small { display: block; }
.brand strong { font: 700 15px/1.3 system-ui, sans-serif; }
.brand small { margin-top: 3px; color: var(--muted); font-size: 11px; }

.connection { color: var(--muted); font: 600 11px/1 system-ui, sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.connection span { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }

.tabs {
  display: flex;
  gap: 8px;
  width: fit-content;
  margin-top: 28px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(4, 13, 11, .42);
}
.tab {
  border: 0;
  border-radius: 9px;
  padding: 10px 20px;
  background: transparent;
  color: var(--muted);
  font: 700 12px/1 system-ui, sans-serif;
  letter-spacing: .04em;
  cursor: pointer;
  transition: .18s ease;
}
.tab:hover { color: var(--text); }
.tab.active { background: var(--accent); color: #102008; box-shadow: 0 7px 22px rgba(168,255,62,.12); }

.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 40px;
  padding: 76px 0 54px;
}

.eyebrow { margin: 0 0 14px; color: var(--accent); font: 700 11px/1 system-ui, sans-serif; letter-spacing: .2em; }
h1 { margin: 0; font-size: clamp(44px, 7vw, 76px); font-weight: 500; line-height: .98; letter-spacing: -.045em; }
h1 em { color: var(--accent); font-style: normal; }
.intro { max-width: 560px; margin: 25px 0 0; color: var(--muted); font-size: 16px; line-height: 1.7; }

.stat-card {
  width: 190px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(21, 45, 38, .9), rgba(11, 24, 21, .9));
  box-shadow: var(--shadow);
}
.stat-card span, .stat-card small { display: block; color: var(--muted); font-size: 12px; }
.stat-card strong { display: block; margin: 5px 0 7px; color: var(--accent); font: 600 44px/1 system-ui, sans-serif; }

.panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}
.tab-panel[hidden] { display: none; }

.panel-head { display: flex; align-items: center; justify-content: space-between; padding: 28px 30px; border-bottom: 1px solid var(--line); }
.panel-head .eyebrow { margin-bottom: 8px; }
h2 { margin: 0; font-size: 24px; font-weight: 500; }

.coin-list { padding: 10px 30px 0; }
.coin-row {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  animation: appear .22s ease both;
}

@keyframes appear { from { opacity: 0; transform: translateY(6px); } }

.row-number { color: #526b61; font: 600 12px/1 system-ui, sans-serif; }
.coin-input {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 10px;
  outline: none;
  background: transparent;
  color: var(--text);
  padding: 9px 11px;
  transition: .18s ease;
}
.coin-input:hover { background: rgba(255,255,255,.025); }
.coin-input:focus { border-color: rgba(168,255,62,.42); background: var(--accent-soft); box-shadow: 0 0 0 3px rgba(168,255,62,.06); }
.coin-input::placeholder { color: #526b61; }

.trade-table-head {
  display: grid;
  grid-template-columns: minmax(220px, 1.45fr) repeat(3, minmax(120px, .8fr)) 34px;
  gap: 12px;
  padding: 16px 30px 12px 80px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 700 10px/1 system-ui, sans-serif;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.trade-list { padding: 0 30px; }
.trade-row {
  display: grid;
  grid-template-columns: 38px minmax(220px, 1.45fr) repeat(3, minmax(120px, .8fr)) 34px;
  gap: 12px;
  align-items: center;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
  animation: appear .22s ease both;
}
.trade-row label span {
  display: none;
  margin-bottom: 7px;
  color: var(--muted);
  font: 700 10px/1 system-ui, sans-serif;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.trade-coin-fields { display: grid; grid-template-columns: minmax(120px, 1fr) 78px; gap: 8px; }
.trade-input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
  background: rgba(255,255,255,.025);
  color: var(--text);
  padding: 10px 11px;
  transition: .18s ease;
}
.trade-input:focus { border-color: rgba(168,255,62,.42); background: var(--accent-soft); box-shadow: 0 0 0 3px rgba(168,255,62,.06); }
.trade-input::placeholder { color: #526b61; }
.trade-symbol { text-transform: uppercase; }
.price-field { position: relative; }
.price-field .trade-input { padding-right: 52px; }
.price-percent {
  position: absolute;
  top: 50%;
  right: 9px;
  transform: translateY(-50%);
  font: 700 10px/1 system-ui, sans-serif;
  pointer-events: none;
}
.profit-percent { color: var(--accent); }
.loss-percent { color: var(--danger); }

.row-controls { display: flex; gap: 5px; }
.icon-button {
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: .18s ease;
}
.icon-button:hover { border-color: rgba(168,255,62,.35); color: var(--accent); background: var(--accent-soft); }
.icon-button:disabled { opacity: .25; cursor: default; }
.icon-button.remove:hover { border-color: rgba(255,125,120,.35); color: var(--danger); background: rgba(255,125,120,.08); }

.add-row {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 18px 30px 24px;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
}
.add-row span { display: grid; place-items: center; width: 27px; height: 27px; border: 1px dashed rgba(168,255,62,.45); border-radius: 8px; }

.actions { display: flex; align-items: center; justify-content: space-between; min-height: 92px; padding: 20px 30px; border-top: 1px solid var(--line); background: rgba(4, 13, 11, .28); }
.status { margin: 0; color: var(--muted); font-size: 13px; }
.status.success { color: var(--accent); }
.status.error { color: var(--danger); }

.button { border-radius: 12px; padding: 11px 17px; font-weight: 600; cursor: pointer; transition: .18s ease; }
.button-secondary { border: 1px solid var(--line); background: transparent; color: var(--muted); }
.button-secondary:hover { color: var(--text); border-color: rgba(255,255,255,.28); }
.button-primary { display: flex; gap: 26px; align-items: center; border: 0; background: var(--accent); color: #102008; padding: 13px 16px 13px 20px; box-shadow: 0 10px 30px rgba(168,255,62,.12); }
.button-primary:hover { transform: translateY(-1px); filter: brightness(1.06); }
.button:disabled { opacity: .45; cursor: wait; transform: none; }
.button-arrow { font: 600 20px/1 system-ui, sans-serif; }

footer { display: flex; justify-content: center; gap: 10px; padding-top: 28px; color: var(--muted); font-size: 12px; }
footer code { color: #c4d5ce; font-family: inherit; }

@media (max-width: 640px) {
  .shell { width: min(100% - 24px, 1040px); }
  .topbar { min-height: 74px; }
  .connection { display: none; }
  .hero { grid-template-columns: 1fr; padding: 48px 4px 34px; }
  .tabs { width: 100%; }
  .tab { flex: 1; }
  .stat-card { width: 100%; display: grid; grid-template-columns: 1fr auto; align-items: center; }
  .stat-card strong { grid-row: span 2; margin: 0; }
  .panel-head, .actions { padding: 20px; }
  .coin-list { padding: 8px 15px 0; }
  .coin-row { grid-template-columns: 26px minmax(0, 1fr); }
  .row-controls { grid-column: 2; justify-content: flex-end; }
  .add-row { margin-left: 20px; }
  .actions { align-items: stretch; flex-direction: column; gap: 16px; }
  .button-primary { justify-content: space-between; }
  footer { flex-direction: column; align-items: center; text-align: center; }
  .trade-table-head { display: none; }
  .trade-list { padding: 8px 15px 0; }
  .trade-row {
    grid-template-columns: 26px minmax(0, 1fr) 34px;
    gap: 10px;
    align-items: start;
    padding: 18px 0;
  }
  .trade-row > .row-number { padding-top: 13px; }
  .trade-coin-fields { grid-column: 2; }
  .trade-row label span { display: block; }
  .trade-row > .price-field { grid-column: 2 / 4; }
  .trade-remove { grid-column: 3; grid-row: 1; margin-top: 5px; }
  .price-percent { top: calc(50% + 8px); }
}

@media (min-width: 641px) and (max-width: 920px) {
  .trade-table-head { display: none; }
  .trade-row { grid-template-columns: 38px repeat(3, 1fr) 34px; }
  .trade-coin-fields { grid-column: 2 / 5; }
  .trade-row label span { display: block; }
  .trade-remove { grid-column: 5; grid-row: 1; }
  .price-field { grid-row: 2; }
  .trade-row > .price-field:nth-of-type(1) { grid-column: 2; }
  .trade-row > .price-field:nth-of-type(2) { grid-column: 3; }
  .trade-row > .price-field:nth-of-type(3) { grid-column: 4; }
  .price-percent { top: calc(50% + 8px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}