@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,600;9..144,700&family=Manrope:wght@300;400;600;700&display=swap');

:root {
  --bg-ink: #0b0f14;
  --bg-olive: #11161d;
  --accent-sun: #f2b34b;
  --accent-moss: #7bd59a;
  --accent-water: #5bbad5;
  --text-main: #f4f2ed;
  --text-muted: #b9c0c9;
  --card: #161c24;
  --card-strong: #1b2430;
  --border-soft: rgba(244, 242, 237, 0.12);
  --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Manrope', system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at top, rgba(123, 213, 154, 0.15), transparent 55%),
    radial-gradient(circle at 20% 20%, rgba(91, 186, 213, 0.18), transparent 45%),
    linear-gradient(160deg, #0b0f14 0%, #11161d 45%, #0d1218 100%);
  color: var(--text-main);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  position: sticky;
  top: 0;
  background: rgba(11, 15, 20, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
  z-index: 10;
}

.navbar {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Fraunces', serif;
  font-size: 20px;
  letter-spacing: 0.5px;
}

.brand span {
  color: var(--accent-sun);
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 14px;
  color: var(--text-muted);
}

.nav-links a:hover {
  color: var(--text-main);
}

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 70px 20px 40px;
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.hero h1 {
  font-family: 'Fraunces', serif;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin-bottom: 12px;
}

.hero p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

.hero-card {
  background: var(--card);
  border: 1px solid var(--border-soft);
  padding: 26px;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
}

.hero-card ul {
  padding-left: 18px;
  color: var(--text-muted);
  line-height: 1.6;
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.section h2 {
  font-family: 'Fraunces', serif;
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.section p {
  color: var(--text-muted);
  line-height: 1.6;
}

.tool-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 24px;
}

.tool-card {
  padding: 20px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.3s ease, border 0.3s ease;
}

.tool-card:hover {
  transform: translateY(-6px);
  border-color: rgba(242, 179, 75, 0.5);
}

.tool-card h3 {
  font-family: 'Fraunces', serif;
  margin: 0;
}

.tool-card p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(123, 213, 154, 0.12);
  color: var(--accent-moss);
}

.panel {
  background: var(--card);
  border-radius: 18px;
  border: 1px solid var(--border-soft);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

input, select, button {
  font: inherit;
}

input, select {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  background: var(--card-strong);
  color: var(--text-main);
}

button {
  padding: 12px 16px;
  border-radius: 999px;
  border: none;
  background: var(--accent-sun);
  color: #101319;
  font-weight: 700;
  cursor: pointer;
}

button.secondary {
  background: transparent;
  border: 1px solid var(--border-soft);
  color: var(--text-main);
}

.output {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: rgba(91, 186, 213, 0.08);
  border-radius: 12px;
  border: 1px solid rgba(91, 186, 213, 0.2);
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.results-table th,
.results-table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border-soft);
}

.results-table th {
  color: var(--text-muted);
  font-weight: 600;
}

.output strong {
  font-size: 1.2rem;
}

.assumptions {
  margin-top: 20px;
  border-top: 1px dashed var(--border-soft);
  padding-top: 16px;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer {
  margin-top: auto;
  padding: 40px 20px;
  border-top: 1px solid var(--border-soft);
  color: var(--text-muted);
}

.footer-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

@media (max-width: 720px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .nav-links {
    flex-wrap: wrap;
  }
}

/* Ad Containers */
.ad-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 24px 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed var(--border-soft);
  border-radius: 8px;
  overflow: hidden;
}

.ad-leaderboard {
  min-height: 90px;
}

.ad-rectangle {
  min-height: 250px;
}

@media (max-width: 768px) {
  .ad-leaderboard {
    min-height: 100px;
  }
}

/* Hide empty ad containers in production */
.ad-container:empty {
  display: none;
}