/* ==========================================================================
   Jeong Inc. — Vietnam Severance Pay Calculator (Dark Monospace Theme)
   ========================================================================== */

.calc-shell {
  max-width: 1120px;
  margin: auto;
  padding: 0 24px 60px;
}

.calc-hero {
  padding: 40px 0 32px;
  max-width: 840px;
}

.calc-hero .eyebrow {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold, #f7e39c);
  font-weight: 600;
  margin-bottom: 14px;
}

.calc-hero h1 {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: clamp(28px, 4.2vw, 46px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink-ivory, #f2efe8);
  margin: 0 0 16px;
}

.calc-hero h1 span {
  color: var(--accent-gold, #f7e39c);
}

.calc-hero p {
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-secondary, #c7cdd8);
  max-width: 680px;
  margin: 0 0 16px;
}

.trust-line {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 18px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 12px;
  color: var(--ink-muted, #8b94a5);
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.calc-panel {
  padding: 28px;
  border: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.14));
  background: var(--bg-card, #0d111a);
  border-radius: 12px;
}

.calc-form fieldset {
  border: 0;
  padding: 0;
  margin: 0 0 28px;
  min-width: 0;
}

.calc-form legend {
  width: 100%;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-ivory, #f2efe8);
  margin-bottom: 18px;
  padding-top: 20px;
  border-top: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.14));
}

.calc-form fieldset:first-child legend {
  padding-top: 0;
  border-top: 0;
}

.step-number {
  font-size: 12px;
  color: var(--accent-gold, #f7e39c);
  margin-right: 8px;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  min-width: 0;
}

.field label {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-ivory, #f2efe8);
}

.field small,
.hint {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-muted, #8b94a5);
}

.calc-form input,
.calc-form select,
.calc-result input,
.calc-result select {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.16));
  border-radius: 8px;
  padding: 11px 14px;
  background: var(--bg-obsidian, #080a0f);
  color: var(--ink-ivory, #f2efe8);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 14px;
  min-height: 44px;
  color-scheme: dark;
}

.calc-form input:focus,
.calc-form select:focus,
.calc-result input:focus {
  outline: 2px solid var(--accent-gold, #f7e39c);
  outline-offset: 1px;
}

.calc-form details {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.1));
  border-radius: 8px;
  margin: 12px 0;
}

.calc-form summary,
.guide summary {
  cursor: pointer;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-weight: 600;
  font-size: 13px;
  color: var(--ink-ivory, #f2efe8);
}

.calc-form details[open] summary {
  margin-bottom: 14px;
}

.calc-form .hint {
  margin: 0 0 14px;
}

.calc-button {
  border: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.2));
  border-radius: 8px;
  padding: 11px 16px;
  background: var(--bg-card-elevated, #111724);
  color: var(--ink-ivory, #f2efe8);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 13px;
  cursor: pointer;
  min-height: 44px;
  transition: border-color 0.16s ease;
}

.calc-button:hover {
  border-color: var(--accent-gold, #f7e39c);
}

.calc-button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-gold, #f7e39c);
  outline-offset: 3px;
}

.calc-button.primary {
  background: var(--accent-gold, #f7e39c);
  color: #080a0f;
  border: 0;
  font-weight: 600;
  font-size: 14px;
  width: 100%;
  padding: 13px;
}

.calc-button.primary:hover {
  opacity: 0.92;
}

.calc-button:disabled {
  opacity: 0.4;
  cursor: default;
}

/* Results Card */
.calc-result {
  position: sticky;
  top: 24px;
  overflow-wrap: anywhere;
  border-top: 3px solid var(--accent-gold, #f7e39c);
  background: var(--bg-card-elevated, #111724);
}

.result-kicker {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  color: var(--ink-muted, #8b94a5);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.result-amount {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: clamp(28px, 3.2vw, 42px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--accent-gold, #f7e39c);
  margin: 10px 0;
}

.result-unit {
  font-size: 12px;
  color: var(--ink-secondary, #c7cdd8);
}

.result-status {
  font-size: 13px;
  line-height: 1.65;
  padding: 14px 0;
  color: var(--ink-secondary, #c7cdd8);
}

.breakdown {
  margin: 12px 0 18px;
  border-top: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.14));
}

.breakdown div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.14));
  padding: 11px 0;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 12px;
}

.breakdown dt {
  color: var(--ink-muted, #8b94a5);
}

.breakdown dd {
  margin: 0;
  text-align: right;
  font-weight: 600;
  color: var(--ink-ivory, #f2efe8);
}

.formula {
  padding: 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.1));
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-secondary, #c7cdd8);
}

.calc-result .actions {
  display: flex;
  gap: 12px;
  margin: 18px 0 10px;
}

.error {
  color: #ff6b6b;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 13px;
  margin: 10px 0;
}

.error:empty {
  display: none;
}

.notice {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-secondary, #c7cdd8);
  padding: 12px 14px;
  border-left: 2px solid var(--accent-gold, #f7e39c);
  background: rgba(255, 255, 255, 0.02);
  margin: 16px 0;
}

/* FAQ / Guide Section */
.guide {
  padding: 48px 0 28px;
  max-width: 800px;
}

.guide h2 {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 24px;
  letter-spacing: -0.02em;
  color: var(--ink-ivory, #f2efe8);
  margin-bottom: 18px;
}

.guide h3 {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 18px;
  color: var(--ink-ivory, #f2efe8);
  margin: 24px 0 10px;
}

.guide p,
.guide li {
  color: var(--ink-secondary, #c7cdd8);
  font-size: 14.5px;
  line-height: 1.8;
}

.guide details {
  padding: 16px 0;
  border-bottom: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.14));
}

.guide details p {
  margin-top: 12px;
}

.guide a {
  color: var(--accent-gold, #f7e39c);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.guide ol {
  padding-left: 20px;
}

.example-box {
  padding: 20px;
  border: 1px solid var(--border-hairline, rgba(242, 239, 232, 0.14));
  background: var(--bg-card, #0d111a);
  border-radius: 10px;
  margin: 22px 0;
}

.example-box strong {
  display: block;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  color: var(--accent-gold, #f7e39c);
  font-size: 22px;
  margin: 8px 0;
}

/* Navigation Language Pill in Header */
.calc-nav-languages {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 18px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 12px;
}

.calc-nav-languages a {
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--ink-muted, #8b94a5);
  border: 1px solid transparent;
  text-decoration: none;
}

.calc-nav-languages a[aria-current="page"],
.calc-nav-languages a[aria-current="true"] {
  color: var(--accent-gold, #f7e39c);
  border-color: var(--border-gold, rgba(247, 227, 156, 0.3));
  background: rgba(247, 227, 156, 0.08);
}

.skip-link {
  position: absolute;
  top: -80px;
  left: 20px;
  background: var(--bg-card, #0d111a);
  color: var(--ink-ivory, #f2efe8);
  padding: 10px 14px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 12px;
  border: 1px solid var(--border-gold, #f7e39c);
  z-index: 100;
}

.skip-link:focus {
  top: 12px;
}

@media (max-width: 760px) {
  .calc-shell {
    padding: 0 16px 40px;
  }
  .calculator-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .calc-panel {
    padding: 20px;
  }
  .calc-result {
    position: static;
  }
}

@media (max-width: 480px) {
  .field-grid {
    grid-template-columns: 1fr;
  }
}