@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #081321;
  --surface: #0d1c2e;
  --surface-light: #12253a;
  --blue: #60a5fa;
  --blue-bright: #38bdf8;
  --white: #f4f7fb;
  --muted: #a9b8cb;
  --line: #23364d;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  background: var(--bg);
  color: var(--white);
  font-family: 'Manrope', sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.header {
  min-height: 78px;
  padding: 18px 7%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(8, 19, 33, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.logo {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 2px;
}

.logo span,
h1 span,
h2 span {
  color: var(--blue);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.nav a:hover,
.text-link:hover {
  color: var(--blue);
}

.menu-toggle {
  display: none;
  color: var(--white);
  background: none;
  border: 0;
  font-size: 1.7rem;
  cursor: pointer;
}

.hero {
  min-height: 570px;
  padding: 110px 8% 100px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  color: var(--blue);
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.intro {
  font-size: 1.25rem;
  color: var(--muted);
  margin-bottom: 10px;
}

h1 {
  max-width: 850px;
  font-size: clamp(2.7rem, 7vw, 5.6rem);
  line-height: 1.08;
  letter-spacing: -3px;
  font-weight: 800;
}

.hero-text {
  max-width: 620px;
  color: var(--muted);
  font-size: 1.05rem;
  margin-top: 25px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 21px;
  border: 1px solid var(--blue);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  transition: transform 0.2s, background 0.2s;
}

.button:hover,
.portfolio-card:hover {
  transform: translateY(-3px);
}

.button.primary {
  background: var(--blue);
  color: #071321;
}

.button.secondary {
  color: var(--white);
  background: transparent;
}

.button.secondary:hover {
  background: var(--surface-light);
}

.hero-decoration {
  position: absolute;
  right: 8%;
  bottom: 50px;
  color: rgba(96, 165, 250, 0.08);
  font-size: clamp(8rem, 20vw, 18rem);
  font-weight: 800;
  line-height: 1;
  pointer-events: none;
}

.hero-decoration span {
  color: rgba(56, 189, 248, 0.16);
}

.section {
  padding: 90px 8%;
}

.about {
  max-width: 1050px;
}

h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.18;
  letter-spacing: -1.5px;
}

.about > p:not(.eyebrow),
.interests > p:not(.eyebrow) {
  max-width: 720px;
  color: var(--muted);
  margin-top: 22px;
}

.text-link {
  display: inline-block;
  margin-top: 22px;
  color: var(--blue);
  font-weight: 700;
}

.portfolio {
  background: #0a1727;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 700px;
  margin-bottom: 38px;
}

.section-heading > p:last-child {
  color: var(--muted);
  margin-top: 14px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.portfolio-card {
  min-height: 245px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 25px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: transform 0.2s, border-color 0.2s;
}

.portfolio-card:hover {
  border-color: var(--blue);
}

.card-number {
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 1px;
}

.card-symbol {
  margin-top: 18px;
  color: var(--blue);
  font-size: 1.7rem;
}

.portfolio-card h3 {
  margin-top: 8px;
  font-size: 1.18rem;
  line-height: 1.4;
}

.portfolio-card p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 10px;
}

.card-link {
  color: var(--blue);
  font-size: 0.85rem;
  font-weight: 700;
  margin-top: auto;
  padding-top: 22px;
}

.interest-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.interest-tags span {
  border: 1px solid var(--line);
  background: var(--surface);
  color: #cbd8e8;
  padding: 8px 13px;
  border-radius: 7px;
  font-size: 0.85rem;
}

.contact-banner {
  padding: 75px 8%;
  text-align: center;
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.contact-banner h2 {
  margin-bottom: 25px;
}

.footer {
  padding: 32px 8%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
  border-top: 1px solid var(--line);
}

.footer p {
  color: var(--muted);
  font-size: 0.78rem;
}

@media (max-width: 650px) {
  .header {
    padding: 16px 6%;
  }

  .menu-toggle {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 20px 6%;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
  }

  .nav.open {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 85px 6% 90px;
  }

  h1 {
    font-size: clamp(2.65rem, 12vw, 4rem);
    letter-spacing: -1.8px;
  }

  .hero-text {
    font-size: 0.96rem;
  }

  .hero-decoration {
    right: -10px;
    bottom: 5px;
    font-size: 9rem;
  }

  .section {
    padding: 68px 6%;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-card {
    min-height: 220px;
    padding: 22px;
  }

  .contact-banner {
    padding: 65px 6%;
  }

  .footer {
    padding: 28px 6%;
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Anime scientist hero image */
.hero-image-wrap {
  width: min(76%, 390px);
  margin: 36px auto 28px;
  position: relative;
  animation: slideDown 1s ease-out both;
}

.hero-image {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid #60a5fa;
  box-shadow: 0 0 22px rgba(96, 165, 250, 0.4);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-90px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 650px) {
  .hero {
    padding: 32px 6% 70px;
  }

  .hero-image-wrap {
    width: min(72%, 290px);
    margin: 12px auto 38px;
  }

  .hero-content {
    animation: fadeUp 0.8s ease-out 0.25s both;
  }

  .greeting {
    font-size: clamp(2rem, 8vw, 2.8rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 18px;
  }

  .greeting span {
    color: #60a5fa;
  }

  .hero h1 {
    font-size: clamp(2rem, 7vw, 2.8rem);
    line-height: 1.17;
    letter-spacing: -1px;
  }

  .hero-text {
    font-size: 0.95rem;
    line-height: 1.7;
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-image-wrap,
  .hero-content {
    animation: none;
  }
}

/* Force the greeting to be prominent */
.hero .hero-content .greeting {
  display: block;
  font-size: 2.8rem !important;
  font-weight: 800 !important;
  line-height: 1.2 !important;
  letter-spacing: -1px;
  margin: 0 0 20px;
}

.hero .hero-content .greeting span {
  color: #60a5fa;
}

@media (max-width: 650px) {
  .hero .hero-content .greeting {
    font-size: 2.6rem !important;
  }
}

/* MOBILE LAYOUT — LARGER AND EASIER TO READ */
@media (max-width: 650px) {
  html {
    font-size: 18px;
  }

  body {
    font-size: 1rem;
    line-height: 1.75;
  }

  .header {
    padding: 18px 5%;
  }

  .logo {
    font-size: 1.25rem;
  }

  .nav a {
    font-size: 0.85rem;
  }

  .hero {
    padding: 30px 7% 65px;
  }

  .hero-image-wrap {
    width: min(72vw, 270px);
    margin: 10px auto 28px;
  }

  .hero .hero-content .greeting {
    font-size: clamp(2.1rem, 8vw, 2.7rem) !important;
    line-height: 1.2 !important;
    margin-bottom: 18px;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 8.5vw, 3rem);
    line-height: 1.15;
    overflow-wrap: normal;
  }

  .hero-text {
    font-size: 1rem;
    line-height: 1.8;
  }

  .btn {
    font-size: 1rem;
    padding: 14px 20px;
  }

  section {
    padding: 65px 7%;
  }

  section h2,
  .section-title {
    font-size: clamp(2rem, 7vw, 2.5rem);
    line-height: 1.25;
  }

  section p,
  .card p,
  .portfolio-card p {
    font-size: 1rem;
    line-height: 1.8;
  }

  .card h3,
  .portfolio-card h3 {
    font-size: 1.3rem;
    line-height: 1.4;
  }
}