/* ============================================================
   TradeCalc — global trading calculator
   "Terminal instrument" design: signal green on deep ink,
   mono numerics everywhere.
   Theme driven by <html data-theme="light|dark">
   Currency-neutral (no hardcoded symbols) — formatting via JS
   ============================================================ */

/* ---------- Theme tokens ---------- */
:root {
  --accent: #0d9a6c;
  --accent-strong: #0b8a60;
  --accent-soft: rgba(13, 154, 108, 0.10);
  --accent-glow: rgba(13, 154, 108, 0.45);

  --profit: #0d9a6c;
  --loss: #d93a44;
  --gold: #b37a1e;
  --profit-soft: rgba(13, 154, 108, 0.10);
  --loss-soft: rgba(217, 58, 68, 0.10);

  --bg: #eef1f0;
  --surface: #ffffff;
  --surface-2: #f4f7f6;
  --surface-3: #e8eeea;
  --border: #d8e0dd;

  --text: #0d1611;
  --text-muted: #5d6d64;

  --header-bg: rgba(238, 241, 240, 0.85);
  --glow: rgba(13, 154, 108, 0.06);

  --shadow: 0 20px 50px rgba(13, 22, 17, 0.09);
  --shadow-sm: 0 2px 12px rgba(13, 22, 17, 0.05);

  --ring: rgba(13, 154, 108, 0.22);

  --font-display: 'Space Grotesk', 'IBM Plex Sans', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', 'Cascadia Mono', Consolas, monospace;
}

html[data-theme="dark"] {
  --accent: #1ec683;
  --accent-strong: #17b877;
  --accent-soft: rgba(30, 198, 131, 0.12);
  --accent-glow: rgba(30, 198, 131, 0.5);

  --profit: #27d18c;
  --loss: #ff5c61;
  --gold: #e2a84b;
  --profit-soft: rgba(39, 209, 140, 0.12);
  --loss-soft: rgba(255, 92, 97, 0.12);

  --bg: #0a0e0c;
  --surface: #0f1511;
  --surface-2: #131a15;
  --surface-3: #182019;
  --border: rgba(232, 240, 234, 0.10);

  --text: #e6efe8;
  --text-muted: #8da095;

  --header-bg: rgba(10, 14, 12, 0.85);
  --glow: rgba(30, 198, 131, 0.05);

  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.35);

  --ring: rgba(30, 198, 131, 0.28);
}

.text-muted {
  color: var(--text-muted) !important;
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  background-image: radial-gradient(1200px 480px at 50% -120px, var(--glow), transparent 70%);
  background-repeat: no-repeat;
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  margin: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
}

main { flex: 1 0 auto; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text);
  line-height: 1.25;
}

::selection { background: var(--accent-soft); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Hide number spinners for a clean instrument look */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { -moz-appearance: textfield; appearance: textfield; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2.6s ease-out infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--accent-glow); }
  70% { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.nav-actions { display: flex; align-items: center; gap: 0.6rem; }

/* Language switcher (static directory links) */
.lang-switch {
  display: inline-flex;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
}

.lang-link {
  padding: 0.42rem 0.85rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.lang-link:hover { color: var(--text); }

.lang-link.active {
  background: var(--surface);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

/* Theme toggle */
.icon-btn {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease, border-color 0.3s ease;
}

.icon-btn:hover {
  background: var(--surface-3);
  color: var(--accent);
  transform: translateY(-1px);
}

/* ---------- Hero ---------- */
.hero { padding: 3.4rem 0 2.6rem; }

.hero-inner { max-width: 740px; }

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

.hero-eyebrow::before {
  content: "";
  width: 20px;
  height: 1px;
  background: var(--accent);
  flex: none;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.8vw, 3.15rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0 0 1.1rem;
}

.hero-title .accent { color: var(--accent); }

.hero-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 0;
}

/* ---------- Calculator / Order ticket ---------- */
.calculator { padding: 0 0 3.5rem; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.panel-body { padding: 1.5rem; }

.panel-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.35rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.panel-title i { color: var(--accent); font-size: 0.9rem; }

/* ---------- Form sections ---------- */
.section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 1.15rem;
}

.section-title i { color: var(--accent); font-size: 0.85rem; }

.section-divider {
  border: 0;
  border-top: 1px dashed var(--border);
  margin: 1.45rem 0;
}

/* ---------- Fields ---------- */
.field { margin-bottom: 1.25rem; }

.field:last-child { margin-bottom: 0; }

.form-section .field { margin-bottom: 0; }

.field-label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 0.45rem;
}

.field-control { position: relative; }

.field-suffix {
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  z-index: 2;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  pointer-events: none;
}

.calc-input {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 0.95rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.field-control.has-suffix .calc-input { padding-right: 3rem; }

.calc-input::placeholder { color: var(--text-muted); opacity: 0.7; }

.calc-input:hover { border-color: var(--accent-strong); }

.calc-input:focus {
  outline: none;
  background: var(--surface);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--ring);
}

.field-hint {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* ---------- Scenario blocks ---------- */
.scenario-block { margin-bottom: 1.4rem; }

.scenario-block:last-child { margin-bottom: 0; }

.scenario-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 0.6rem;
}

.scenario-label.profit { color: var(--profit); }
.scenario-label.loss { color: var(--loss); }

/* Segmented control */
.seg {
  display: flex;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
}

.seg-radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.seg-btn {
  flex: 1;
  text-align: center;
  padding: 0.55rem 0.5rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.seg-btn:hover { color: var(--text); }

.seg-radio:checked + .seg-btn {
  background: var(--surface);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.seg-radio:focus-visible + .seg-btn {
  box-shadow: 0 0 0 3px var(--ring);
}

/* ---------- Position readout (summary) ---------- */
.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 2.6rem 1rem;
  border: 1px dashed var(--border);
  border-radius: 12px;
  font-size: 0.9rem;
}

.empty-state i {
  font-size: 1.6rem;
  display: block;
  margin-bottom: 0.6rem;
  color: var(--accent);
}

.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
}

.total-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.total-row strong {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.3rem;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

/* Stat blocks (big Net Profit / Net Loss) */
.stat {
  margin-top: 1.1rem;
  padding: 1.15rem 1.1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.stat-profit { border-color: var(--profit-soft); }
.stat-loss { border-color: var(--loss-soft); }

.stat-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.stat-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
}

.stat-profit .stat-label { color: var(--profit); }
.stat-loss .stat-label { color: var(--loss); }

.stat-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 0.24rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}

.stat-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.75rem, 4vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  margin: 0.6rem 0;
  color: var(--text);
  transition: color 0.35s ease, transform 0.35s ease;
}

.stat-value.up { color: var(--profit); }
.stat-value.down { color: var(--loss); }

.stat-value.pop { animation: pop 0.3s ease; }

@keyframes pop {
  0% { transform: scale(0.97); opacity: 0.6; }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); opacity: 1; }
}

.stat-rows {
  border-top: 1px dashed var(--border);
  padding-top: 0.55rem;
}

/* ---------- Result rows ---------- */
.row-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.42rem 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.row-item span:last-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text);
  text-align: right;
  font-variant-numeric: tabular-nums;
  transition: color 0.35s ease;
}

.row-item span.v-profit { color: var(--profit); }
.row-item span.v-loss { color: var(--loss); }

/* Risk/Reward */
.rr-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 1.1rem;
  padding: 1rem 1.1rem;
  border-radius: 12px;
  background: var(--accent-soft);
}

.rr-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
}

.rr-label i { color: var(--accent); }

.rr-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--accent);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* Risk/reward bar — reward length relative to a fixed 1:1 notch */
.rr-bar {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.8rem;
}

.rr-bar-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  flex: none;
}

.rr-bar-track {
  position: relative;
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  overflow: hidden;
}

.rr-bar-notch {
  position: absolute;
  top: -2px;
  bottom: -2px;
  left: 50%;
  width: 1px;
  background: var(--border);
}

.rr-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--profit);
  transition: width 0.4s ease;
}

/* ---------- AdSense slots ---------- */
.ad-wrapper {
  text-align: center;
  padding: 1rem 0;
}

.ad-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.8;
  margin-bottom: 0.4rem;
}

.adsbygoogle { display: block; }

/* ---------- SEO content (quiet appendix) ---------- */
.seo-content { padding: 0 0 3.5rem; }

.seo-panel {
  background: transparent;
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0;
  box-shadow: none;
  padding: 2.4rem 0 0;
}

.seo-panel article { max-width: 720px; margin: 0 auto; }

.seo-panel h2 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 2.1rem 0 0.7rem;
}

.seo-panel h2::before {
  content: "";
  width: 4px;
  height: 1.1em;
  border-radius: 2px;
  background: var(--accent);
  flex: none;
}

.seo-panel h2:first-child { margin-top: 0; }

.seo-panel h3 {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 1.6rem 0 0.5rem;
}

.seo-panel p { color: var(--text-muted); line-height: 1.8; margin-bottom: 1rem; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  color: var(--text-muted);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.site-footer p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
  .hero { padding: 2.6rem 0 2rem; }
  .hero-title { font-size: clamp(1.7rem, 6vw, 2.4rem); }
}

@media (max-width: 575.98px) {
  .panel-body { padding: 1.2rem; }
  .hero-sub { font-size: 0.97rem; }
  .stat-value { font-size: 1.7rem; }
}

@media (prefers-reduced-motion: reduce) {
  .brand-dot { animation: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}