/* ---------- Base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg-chalk: #0c1110;
  --bg-chalk-alt: #111818;
  --panel: #171f22;
  --panel-soft: #1f292d;
  --text: #f5f5f7;
  --muted: #a0a3b0;
  --accent: #d86e42;      /* orange */
  --accent-soft: #f1a168; /* lighter orange */
  --accent-brown: #8a4b23;
  --border-subtle: rgba(148, 163, 184, 0.3);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Helvetica Neue", Arial, sans-serif;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.5);
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(60, 99, 81, 0.4), transparent 55%),
    radial-gradient(circle at bottom right, rgba(24, 43, 33, 0.5), transparent 60%),
    #050807;
}

/* If you add a chalkboard texture, uncomment this and put chalkboard.jpg in same dir */

body {
  background-image: url("chalkboard.jpg"),
    radial-gradient(circle at top left, rgba(60, 99, 81, 0.4), transparent 55%),
    radial-gradient(circle at bottom right, rgba(24, 43, 33, 0.5), transparent 60%);
  background-size: cover, auto, auto;
  background-attachment: fixed;
  background-repeat: no-repeat;
}


main {
  min-height: 100vh;
}

/* ---------- Layout helpers ---------- */

.container {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 18px;
}

.section {
  padding: 40px 0;
}

.section-heading {
  font-size: 1.4rem;
  margin: 0 0 12px;
}

.grid {
  display: grid;
  gap: 22px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.site-header {
  border-bottom: 1px solid rgba(107, 114, 128, 0.5);
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.9), rgba(5, 7, 10, 0.95));
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.6);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: radial-gradient(
    circle at 25% 20%,
    var(--accent-soft),
    var(--accent-brown) 55%,
    #05060a 100%
  );
  box-shadow: 0 0 0 2px rgba(248, 250, 252, 0.08);
}

.brand-name {
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
}

.brand-role {
  font-size: 0.8rem;
  color: var(--muted);
}

.top-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.84rem;
}

.top-links a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.75);
}

.top-links a:hover {
  color: var(--text);
  border-color: rgba(248, 250, 252, 0.7);
}

/* ---------- Hero ---------- */

.hero {
  padding-top: 34px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.2fr);
  gap: 34px;
  align-items: center;
}

.hero-title {
  font-size: 1.7rem;
  margin: 0 0 10px;
}

.hero-subtitle {
  font-size: 0.98rem;
  color: var(--muted);
  max-width: 34rem;
  margin: 0 0 16px;
}

.hero-contact {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  font-size: 0.9rem;
}

.hero-contact-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-soft);
  margin-bottom: 4px;
}

.hero-contact a {
  color: var(--accent-soft);
  text-decoration: none;
}

.hero-contact a:hover {
  text-decoration: underline;
}

.hero-photo {
  display: flex;
  justify-content: flex-end;
}

.hero-photo-card {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: radial-gradient(circle at top, #111827, #020617);
  box-shadow: var(--shadow-soft);
  max-width: 240px;
}

.hero-photo-card img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- Note cards ---------- */

.note-card {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.92), rgba(11, 18, 26, 0.96));
  border-radius: var(--radius-lg);
  padding: 18px 18px 16px;
  border: 1px solid rgba(55, 65, 81, 0.9);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.55);
}

.note-card h2,
.note-card h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.note-card p {
  margin: 6px 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.note-card a {
  color: var(--accent-soft);
  text-decoration: none;
}

.note-card a:hover {
  text-decoration: underline;
}

/* ---------- Lists ---------- */

.class-list,
.link-list {
  list-style: none;
  padding-left: 0;
  margin: 6px 0 0;
}

.class-list li,
.link-list li {
  margin-bottom: 6px;
  font-size: 0.93rem;
  color: var(--muted);
}

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

.site-footer {
  border-top: 1px solid rgba(75, 85, 99, 0.7);
  padding: 18px 0 22px;
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.95), rgba(2, 6, 23, 0.96));
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

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

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

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-photo {
    justify-content: flex-start;
  }

  .hero-contact {
    grid-template-columns: minmax(0, 1fr);
  }

  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .grid-2 {
    grid-template-columns: minmax(0, 1fr);
  }
}

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

  .top-links {
    justify-content: flex-start;
  }

  .section {
    padding: 30px 0;
  }
}