@font-face {
  font-family: "Inter";
  src: url("../fonts/Inter_18pt-Regular.woff2") format("woff2"),
    url("../fonts/Inter_18pt-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("../fonts/Inter_18pt-SemiBold.woff2") format("woff2"),
    url("../fonts/Inter_18pt-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("../fonts/Inter_18pt-Bold.woff2") format("woff2"),
    url("../fonts/Inter_18pt-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #ffb80c;
  --bg-elevated: #333333;
  --accent: #111111;
  --accent-soft: rgba(15, 23, 42, 0.06);
  --accent-strong: #111111;
  --border-subtle: rgba(15,23,42,0.08);
  --text-main: #111111;
  --text-muted: #000000;
  --danger: #b91c1c;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.08);
  --shadow-subtle: 0 1px 2px rgba(15, 23, 42, 0.06);
  --transition-fast: 0.18s ease-out;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.page-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 18px 40px;
  width: 100%;
}

header {
  padding: 16px 0 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 24px rgba(15,23,42,0.18);
  position: relative;
  overflow: hidden;
}

.brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-text h1 {
  margin: 0 0 2px;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
}

.brand-text p {
  margin: 0;
  font-size: 0.85rem;
  color: #000000;
}

.header-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.site-nav {
  display: flex;
  gap: 12px;
  font-size: 0.85rem;
}

.site-nav a {
  color: #000000;
}
.site-nav a:hover {
  color: var(--text-main);
  text-decoration: none;
}

.header-pill {
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(15,23,42,0.08);
  background: #ffffff;
  font-size: 0.75rem;
  color: #000000;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-subtle);
}

.header-pill span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: #111827;
  border: 1px solid #111827;
  font-size: 0.7rem;
  color: #ffffff;
}

.hero {
  margin-bottom: 26px;
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.2fr);
  gap: 24px;
  align-items: stretch;
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }
  .header-right {
    align-items: flex-start;
  }
}

.hero-copy {
  padding: 18px 20px 20px;
  border-radius: var(--radius-lg);
  background: #333333;
  box-shadow: var(--shadow-soft);
  border: 1px solid #333333;
  position: relative;
  overflow: hidden;
  color: #ffffff;
}

.hero-copy-inner {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 6px;
}

.hero-title {
  font-size: 1.6rem;
  line-height: 1.25;
  margin: 0 0 8px;
  color: #ffffff;
}

.hero-subtitle {
  margin: 0 0 14px;
  font-size: 0.95rem;
  color: #ffffff;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.hero-badge {
  font-size: 0.75rem;
  padding: 4px 9px;
  border-radius: var(--radius-pill);
  border: 1px solid #ffb80c;
  background: #444444;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #ffffff;
}

.hero-badge strong {
  color: #ffb80c;
  font-weight: 600;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.hero-btn {
  border-radius: var(--radius-pill);
  border: 1px solid #111827;
  padding: 9px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.hero-btn-primary {
  background: #ffb80c;
  color: #111111;
  box-shadow: 0 10px 24px rgba(15,23,42,0.22);
}

.hero-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(15,23,42,0.28);
}

.hero-btn-ghost {
  background: #ffb80c;
  color: #111111;
}

.hero-btn-ghost:hover {
  background: #e0a305;
  color: #111111;
}

.hero-note {
  font-size: 0.75rem;
  color: #ffffff;
}

.hero-sidebar {
  border-radius: var(--radius-lg);
  padding: 16px 16px 14px;
  background: #333333;
  border: 1px solid #333333;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: #ffffff;
}

.hero-sidebar h2 {
  margin: 0 0 4px;
  font-size: 1rem;
  color: #ffffff;
}

.hero-sidebar p {
  margin: 0;
  font-size: 0.8rem;
  color: #ffffff;
}

.tool-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  font-size: 0.9rem;
  color: #ffffff;
}

.tool-list li {
  margin: 0;
}

.tool-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px dashed rgba(15,23,42,0.08);
  color: inherit;
  font-weight: 700;
}

.tool-list li:last-child a {
  border-bottom: none;
}

.tool-list span {
  color: #ffffff;
  font-weight: 700;
}

/* SEO intro section */
.seo-intro {
  margin-bottom: 18px;
  font-size: 0.9rem;
  color: #ffffff;
  background: #333333;
  border-radius: 14px;
  border: 1px solid #333333;
  padding: 12px 14px;
  box-shadow: 0 10px 20px rgba(15,23,42,0.04);
  line-height: 1.55;
}

.seo-intro h2 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  color: #ffffff;
}

/* How to use */
.howto {
  margin-bottom: 20px;
  padding: 14px 16px;
  background: #333333;
  border-radius: 14px;
  border: 1px solid #333333;
  box-shadow: 0 10px 20px rgba(15,23,42,0.04);
  color: #ffffff;
  line-height: 1.55;
}

.howto h2 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: #ffffff;
}

.howto ol {
  margin: 0 0 8px 18px;
  padding: 0;
  font-size: 0.86rem;
  color: #ffffff;
}

.howto-note {
  margin: 0;
  font-size: 0.8rem;
  color: #ffffff;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.card {
  background: #333333;
  border-radius: var(--radius-md);
  border: 1px solid #333333;
  box-shadow: 0 12px 28px rgba(15,23,42,0.06);
  padding: 16px 16px 14px;
  position: relative;
  overflow: hidden;
  color: #ffffff;
  line-height: 1.55;
}

.card-header {
  position: relative;
  z-index: 1;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-title {
  font-size: 1.2rem;
  margin: 0;
  color: #ffffff;
}

.card-subtitle {
  margin: 2px 0 0;
  font-size: 0.8rem;
  color: #ffffff;
}

.card-pill {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  border: 1px solid #ffb80c;
  background: #444444;
  color: #ffffff;
  white-space: nowrap;
}

form {
  position: relative;
  z-index: 1;
}

.field-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

@media (max-width: 520px) {
  .field-row {
    flex-direction: column;
  }
}

.field {
  flex: 1;
}

label {
  display: block;
  font-size: 0.75rem;
  color: #ffffff;
  margin-bottom: 3px;
}

input[type="number"],
input[type="text"],
textarea,
select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(15,23,42,0.1);
  padding: 7px 9px;
  font-size: 0.85rem;
  background: #444444;
  color: #ffffff;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

input[type="number"]:focus,
input[type="text"]:focus,
textarea:focus,
select:focus {
  border-color: #ffb80c;
  box-shadow: 0 0 0 1px rgba(255,184,12,0.7);
  background: #555555;
  transform: translateY(-0.5px);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.btn {
  border-radius: var(--radius-pill);
  border: 1px solid #111827;
  padding: 8px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #ffb80c;
  color: #111111;
  box-shadow: 0 10px 24px rgba(15,23,42,0.18);
  margin-top: 2px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(15,23,42,0.24);
  filter: brightness(1.03);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 8px 20px rgba(15,23,42,0.2);
  filter: brightness(0.98);
}

.btn-secondary {
  background: #ffb80c;
  color: #111111;
  border-color: rgba(15,23,42,0.5);
  box-shadow: none;
}

.btn-secondary:hover {
  background: #e0a305;
  color: #111111;
  box-shadow: 0 10px 24px rgba(15,23,42,0.18);
}

.result-box {
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: 10px;
  background: #444444;
  border: 1px solid #ffb80c;
  font-size: 1rem;
  color: #ffffff;
  white-space: pre-wrap;
}

.result-box strong {
  color: var(--accent-strong);
}

.result-box .profit {
  color: #059669;
  font-weight: 700;
  background: #ffffff;
  padding: 2px 8px;
  border-radius: 999px;
  display: inline-block;
}

.result-box .loss {
  color: var(--danger);
  font-weight: 700;
  background: #ffffff;
  padding: 2px 8px;
  border-radius: 999px;
  display: inline-block;
}

.small-note {
  font-size: 0.72rem;
  color: #ffffff;
  margin-top: 4px;
}

.tool-help {
  margin-top: 10px;
  font-size: 0.8rem;
  color: #ffffff;
}

/* FAQ */
.faq {
  margin-top: 30px;
  margin-bottom: 10px;
  padding: 16px 16px 14px;
  background: #333333;
  border-radius: 16px;
  border: 1px solid #333333;
  box-shadow: 0 10px 24px rgba(15,23,42,0.06);
  color: #ffffff;
}

.faq h2 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.faq-item + .faq-item {
  border-top: 1px solid rgba(15,23,42,0.06);
  padding-top: 10px;
  margin-top: 10px;
}

.faq-item h3 {
  margin: 0 0 4px;
  font-size: 0.95rem;
}

.faq-item p {
  margin: 0;
  font-size: 0.85rem;
  color: #ffffff;
}

.footer {
  margin-top: 26px;
  padding-top: 12px;
  border-top: 1px solid rgba(15,23,42,0.06);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  font-size: 0.75rem;
  color: #000000;
}

.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #000000;
}
.footer-links a:hover {
  color: var(--text-main);
}

.hero-copy a,
.hero-sidebar a,
.seo-intro a,
.howto a,
.card a,
.faq a {
  color: #ffb80c;
}