:root {
  --bg: #f5f5f7; /* Apple-like gray */
  --panel: #ffffff; /* clean white surfaces when needed */
  --text: #1d1d1f; /* Apple text */
  --muted: #6e6e73; /* Apple muted */
  --heading: #111113; /* deep heading */
  --link: #06c; /* Apple link blue */
  --accent: #16a34a; /* success */
  --border: #e5e7eb; /* light border */
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', Segoe UI, Roboto, Helvetica, Arial, Noto Sans, Apple Color Emoji, Segoe UI Emoji, ui-sans-serif, system-ui;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container { width: min(1100px, 92vw); margin: 0 auto; }

.hero { background: transparent; border-bottom: none; }
.hero .container { padding: 96px 0 56px; text-align: center; }
.hero h1 { font-size: 64px; line-height: 1.05; margin: 0 0 10px; letter-spacing: -0.02em; font-weight: 600; color: var(--heading); }
.tagline { margin: 0 0 28px; color: var(--muted); font-size: 22px; }
.cta { background: transparent; color: var(--link); border: none; padding: 0; font-weight: 600; font-size: 18px; cursor: pointer; }
.cta::after { content: ' ›'; }
.cta:hover { text-decoration: underline; }

.features { padding: 56px 0; display: grid; gap: 56px; }
.feature {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 28px;
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0 8px;
  box-shadow: none;
}
.feature.reverse { grid-template-columns: 1fr 1.1fr; }
.feature.reverse .text { order: 2; }
.feature.reverse .visual { order: 1; }
.feature h2 { margin: 0 0 10px; font-size: 36px; line-height: 1.15; letter-spacing: -0.01em; font-weight: 600; color: var(--heading); }
.feature p { margin: 0; color: var(--text); line-height: 1.6; font-size: 18px; }
.eyebrow { display: block; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; font-size: 12px; margin-bottom: 10px; }

.visual.placeholder {
  background: #ededf0;
  color: #4b5563;
  display: grid; place-items: center;
  border-radius: 18px; min-height: 220px;
  border: none;
  font-weight: 600;
}

.cta-section { text-align: center; padding: 24px 0 96px; }
.cta-section .container { background: transparent; border: 0; padding: 0; box-shadow: none; }
.cta-section h3 { margin: 0 0 10px; font-size: 40px; letter-spacing: -0.01em; font-weight: 600; color: var(--heading); }
.cta-section p { margin: 0 12px 18px; color: var(--muted); font-size: 18px; }

/* Modal */
.modal { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; padding: 16px; z-index: 1000; overflow: auto; }
.modal.open { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.50); backdrop-filter: blur(1px); }
.modal-content {
  position: relative; width: min(720px, 92vw);
  background: var(--panel); color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px; padding: 20px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
  max-height: 90vh; overflow-y: auto; overscroll-behavior: contain;
}
.modal-close {
  position: absolute; right: 10px; top: 8px;
  background: transparent; color: #6b7280;
  border: none; font-size: 24px; cursor: pointer;
}
.muted { color: var(--muted); margin-top: 4px; }

form { margin-top: 10px; }
label { display: grid; gap: 6px; font-size: 14px; }
input, select, textarea {
  width: 100%; background: #f6f7f8; color: var(--text);
  border: 1px solid #d1d5db; border-radius: 10px; padding: 12px 14px;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(37,99,235,0.25); border-color: var(--brand);
}
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.grid .full { grid-column: 1 / -1; }
.form-status { min-height: 20px; margin-top: 8px; }
.form-status.success { color: var(--accent); }
.form-status.error { color: #dc2626; }

/* Solid button for form submit */
.btn { background: #1d1d1f; color: #fff; border: 0; padding: 12px 20px; font-weight: 600; border-radius: 12px; cursor: pointer; }
.btn:hover { filter: brightness(1.06); }

/* What it does summary */
.summary { text-align: center; padding: 28px 0 8px; }
.summary h3 { margin: 0 0 10px; font-size: 32px; letter-spacing: -0.01em; font-weight: 600; color: var(--heading); }
.summary p { margin: 0 auto; max-width: 900px; font-size: 18px; line-height: 1.6; color: var(--text); }

/* Top tabs */
.tabs { display: inline-flex; gap: 24px; margin-top: 12px; }
.tabs a { color: var(--link); text-decoration: none; font-weight: 600; }
.tabs a:hover { text-decoration: underline; }

/* Data Sources section */
.data-sources { text-align: center; padding: 24px 0 96px; }
.data-sources h3 { margin: 0 0 8px; font-size: 32px; letter-spacing: -0.01em; font-weight: 600; color: var(--heading); }
.data-sources p { margin: 6px 0; font-size: 18px; color: var(--text); }
.data-sources .status { color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 24px 0 40px; text-align: center; }
.site-footer p { margin: 0; color: var(--muted); }
.site-footer a { color: var(--link); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* Intro note below hero */
.intro-note { text-align: center; padding: 16px 0 8px; }
.intro-note p { margin: 0 auto; max-width: 960px; color: #60a5fa; font-size: 20px; font-weight: 400; font-style: normal; letter-spacing: 0.1px; }

@media (max-width: 1024px) {
  .feature, .feature.reverse { grid-template-columns: 1fr; }
  .feature.reverse .text, .feature.reverse .visual { order: initial; }
  .visual, .visual.placeholder { display: none !important; }
  .feature { padding: 0 8px; }
  .feature h2 { margin-top: 2px; }
  .features { gap: 32px; }
  .grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 42px; }
  .feature h2 { font-size: 28px; }
}