/* styles.css */
:root {
  --color-bg: #FDFBF7;
  --color-text: #1a1a1a;
  --color-text-muted: #5a5a5a;
  --color-accent: #2D5A45;
  --color-accent-light: #E8F0EC;
  --color-border: #e0dcd4;
  --color-card: #ffffff;
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Source Sans 3', -apple-system, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 17px;
}

/* Header Badge */
.badge {
  display: inline-block;
  background: var(--color-accent);
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

/* Hero Section */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 150%;
  background: radial-gradient(ellipse at center, var(--color-accent-light) 0%, transparent 70%);
  opacity: 0.6;
  pointer-events: none;
}

.hero-content {
  max-width: 720px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 24px;
  color: var(--color-text);
}

.hero h1 em {
  font-style: italic;
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  background: var(--color-accent);
  color: white;
  padding: 16px 36px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px rgba(45, 90, 69, 0.25);
}

.cta-button:hover {
  background: #234a38;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 90, 69, 0.3);
}

.hero-note {
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  animation: bounce 2s infinite;
}

.scroll-indicator svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-text-muted);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

/* Section Base */
section {
  padding: 80px 24px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  margin-bottom: 40px;
  text-align: center;
}

/* What Section */
.what-section {
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.what-content {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.topic-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
}

.topic-card .icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.topic-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.topic-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Exchange Section */
.exchange-section {
  background: var(--color-bg);
}

.exchange-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 700px) {
  .exchange-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .exchange-arrow {
    transform: rotate(90deg);
  }
}

.exchange-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px;
}

.exchange-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.exchange-card ul {
  list-style: none;
}

.exchange-card li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.exchange-card li:last-child {
  border-bottom: none;
}

.exchange-card li::before {
  content: '→';
  color: var(--color-accent);
  font-weight: 600;
  flex-shrink: 0;
}

.exchange-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-accent);
  padding-top: 60px;
}

/* Report Preview */
.preview-section {
  background: var(--color-accent);
  color: white;
}

.preview-section .section-title {
  color: white;
}

.preview-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  list-style: none;
}

.preview-list li {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.preview-list .number {
  font-family: var(--font-display);
  font-size: 2rem;
  opacity: 0.5;
  font-style: italic;
}

.preview-list span {
  font-size: 1rem;
}

/* About Section */
.about-section {
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
}

.about-content {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 32px;
  align-items: start;
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 500px) {
  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .about-avatar {
    margin: 0 auto;
  }
}

.about-avatar {
  width: 100px;
  height: 100px;
  background: var(--color-accent-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--color-accent);
}

.about-text h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.about-text a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}

.about-text a:hover {
  text-decoration: underline;
}

/* CTA Section */
.cta-section {
  background: var(--color-bg);
  text-align: center;
  padding: 100px 24px;
}

.cta-section .section-title {
  margin-bottom: 20px;
}

.cta-section .cta-subtitle {
  color: var(--color-text-muted);
  margin-bottom: 40px;
  font-size: 1.1rem;
}

/* Calendly Embed Placeholder */
.calendly-placeholder {
  background: var(--color-card);
  border: 2px dashed var(--color-border);
  border-radius: 12px;
  padding: 60px 24px;
  max-width: 600px;
  margin: 0 auto;
}

.calendly-placeholder p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.calendly-placeholder code {
  display: block;
  background: var(--color-bg);
  padding: 16px;
  border-radius: 6px;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--color-accent);
  word-break: break-all;
}

/* Footer */
footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--color-border);
}

footer a {
  color: var(--color-accent);
  text-decoration: none;
}

/* Animation on scroll */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}