/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Tokens ── */
:root {
  --grad-a: #5b7fe8;
  --grad-b: #c044e8;
  --accent: #d63ecb;
  --text: #111111;
  --text-soft: #444444;
  --bg: #ffffff;
  --bg-alt: #f5f3ff;
  --border: #e2d9f3;
  --radius: 14px;
  font-family: "Space Grotesk", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ── Hero ── */
.hero {
  background: linear-gradient(140deg, var(--grad-a) 0%, var(--grad-b) 100%);
  padding: 5rem 1.5rem 6rem;
  text-align: center;
}

.hero-inner {
  max-width: 700px;
  margin: 0 auto;
  display: grid;
  gap: 1.25rem;
  justify-items: center;
}

.hero h1 {
  font-size: clamp(2.4rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: #111;
}

.tagline {
  font-size: clamp(1.05rem, 3vw, 1.3rem);
  font-weight: 500;
  color: #111;
  max-width: 38ch;
}

/* ── Sections ── */
.section {
  padding: 4rem 1.5rem;
}

.section-alt {
  background: var(--bg-alt);
}

.section-inner {
  max-width: 680px;
  margin: 0 auto;
  display: grid;
  gap: 1rem;
}

.section h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section p {
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 58ch;
}

/* ── Subject cards ── */
.subjects {
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.subject-card {
  display: grid;
  gap: 0.6rem;
}

.subject-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.subject-card p {
  font-size: 0.95rem;
  color: var(--text-soft);
  line-height: 1.55;
}

.subject-list {
  font-size: 0.95rem;
  color: var(--text-soft);
  line-height: 1.55;
}

/* ── About ── */
.about-content {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.about-photo {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
}

/* ── List ── */
.list {
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.list li {
  padding-left: 1.4rem;
  position: relative;
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.5;
}

.list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ── Contact section ── */
.section-contact {
  background: linear-gradient(140deg, var(--grad-a) 0%, var(--grad-b) 100%);
}

.contact-inner {
  text-align: center;
  justify-items: center;
}

.section-contact h2 {
  color: #111;
}

.section-contact p {
  color: #111;
}

.contact-note {
  font-size: 0.9rem !important;
  opacity: 0.75;
  max-width: 44ch !important;
}

/* ── CTA button ── */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #111111;
  color: #ffffff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  transition: opacity 0.15s;
  margin-top: 0.25rem;
}

.cta-button:hover {
  opacity: 0.8;
}

/* ── Footer ── */
.footer {
  padding: 2rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-soft);
}

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

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

/* ── Responsive ── */
@media (max-width: 540px) {
  .subjects {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 3.5rem 1.25rem 4.5rem;
  }

  .about-content {
    flex-direction: column;
    text-align: center;
  }
}