/* ==========================================================================
   jagannathan.net — shared stylesheet
   Warm, personal theme. Edit the variables below to retheme the whole site.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;1,400&family=Nunito+Sans:wght@400;600;700&display=swap');

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #eaf2fb;
  --color-text: #1c2b3a;
  --color-text-soft: #52697e;
  --color-accent: #2569b3;
  --color-accent-dark: #184e8a;
  --color-border: #d9e6f4;
  --color-card: #f7fafd;
  --font-heading: 'Lora', Georgia, 'Times New Roman', serif;
  --font-body: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 860px;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.65;
  font-size: 17px;
}

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

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

a:hover {
  text-decoration: underline;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.25;
  margin-top: 0;
  color: var(--color-text);
}

.wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header / Nav ---------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding-top: 18px;
  padding-bottom: 18px;
  gap: 12px;
}

.site-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
}

.site-title a {
  color: inherit;
  text-decoration: none;
}

.site-title .dot {
  color: var(--color-accent);
}

nav.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
  padding: 0;
}

nav.site-nav a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--color-text-soft);
  font-weight: 600;
  font-size: 0.95rem;
}

nav.site-nav a:hover {
  background: var(--color-bg-alt);
  text-decoration: none;
  color: var(--color-text);
}

nav.site-nav a[aria-current="page"] {
  background: var(--color-accent);
  color: #fff;
}

/* ---------- Main content ---------- */

main {
  padding: 48px 0 64px;
}

.hero {
  padding: 40px 0 8px;
}

.hero p.lede {
  font-size: 1.15rem;
  color: var(--color-text-soft);
  max-width: 640px;
}

.tag {
  display: inline-block;
  background: var(--color-bg-alt);
  color: var(--color-accent-dark);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

section {
  margin-bottom: 44px;
}

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.card h3 {
  margin-bottom: 6px;
}

.card .meta {
  color: var(--color-text-soft);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

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

.btn {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}

.btn:hover {
  background: var(--color-accent-dark);
  text-decoration: none;
}

.btn.secondary {
  background: transparent;
  color: var(--color-accent-dark);
  border: 2px solid var(--color-accent);
  padding: 9px 20px;
}

.btn.secondary:hover {
  background: var(--color-bg-alt);
}

ul.plain {
  list-style: none;
  padding: 0;
  margin: 0;
}

ul.plain li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

ul.plain li:last-child {
  border-bottom: none;
}

.social-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 10px;
}

form.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 520px;
}

form.contact-form label {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 6px;
  display: block;
}

form.contact-form input,
form.contact-form textarea {
  width: 100%;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 1rem;
  background: #fff;
  color: var(--color-text);
}

form.contact-form textarea {
  resize: vertical;
  min-height: 130px;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 28px 0 40px;
  color: var(--color-text-soft);
  font-size: 0.9rem;
}

.site-footer .wrapper {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Responsive ---------- */

@media (max-width: 600px) {
  .site-header .wrapper {
    flex-direction: column;
    align-items: flex-start;
  }

  nav.site-nav ul {
    gap: 2px;
  }

  nav.site-nav a {
    padding: 6px 10px;
    font-size: 0.9rem;
  }
}