/* ==========================================================
   COLOUR + DESIGN TOKENS
   Change --primary / --secondary / --accent to re-theme the
   whole site in one place.
   ========================================================== */
:root {
  --background: #FFFFFF;
  --background-soft: #F5F7FF;
  --text: #12131A;
  --muted: #5B5F6D;

  --primary: #2F5EFF;     /* electric blue — main accent */
  --primary-dim: #E7ECFF; /* pale tint of primary, for backgrounds */
  --secondary: #FFC93C;   /* bright yellow — supporting */
  --accent: #FF5A36;      /* vibrant orange — used sparingly, signature moments */

  --line: #E7E8EE;

  --font-display: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --container: 1140px;
  --radius: 18px;

  --nav-height: 76px;
}

/* ==========================================================
   RESET
   ========================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; background: none; border: none; cursor: pointer; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
}

p { margin: 0; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: 0 0 10px 0;
  z-index: 999;
}
.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ==========================================================
   DECORATIVE BACKGROUND — soft blobs + grid lines
   ========================================================== */
.bg-decor {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.35;
}
.blob--one {
  width: 520px;
  height: 520px;
  background: var(--secondary);
  top: -160px;
  right: -140px;
}
.blob--two {
  width: 460px;
  height: 460px;
  background: var(--primary);
  opacity: 0.18;
  bottom: 10%;
  left: -180px;
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.5;
  mask-image: linear-gradient(to bottom, black, transparent 60%);
}

/* ==========================================================
   SHARED LAYOUT HELPERS
   ========================================================== */
.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 100px 32px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 48px;
}

/* Scroll reveal — respects reduced motion via JS + this base state */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================
   NAVIGATION
   ========================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.nav.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 4px 24px rgba(20, 20, 30, 0.04);
}

.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  height: 100%;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
}
.nav__logo-dot { color: var(--accent); }

.nav__links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}

.nav__link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  padding: 6px 2px;
  transition: color 0.2s ease;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 0;
  background: var(--primary);
  transition: width 0.25s ease;
}
.nav__link:hover,
.nav__link.is-active {
  color: var(--text);
}
.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
}

.nav__cta {
  margin-left: 12px;
  background: var(--text);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.2s ease, transform 0.2s ease;
}
.nav__cta:hover {
  background: var(--primary);
  transform: translateY(-1px);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================
   HERO
   ========================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 40px;
  max-width: var(--container);
  margin: 0 auto;
  padding: calc(var(--nav-height) + 48px) 32px 80px;
}

.hero__inner { max-width: 620px; }

.hero__name {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
}
.hero__line {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  color: var(--muted);
  font-weight: 500;
}
.hero__line--big {
  font-size: clamp(2.8rem, 7vw, 5rem);
  color: var(--text);
  font-weight: 700;
  line-height: 1.02;
}

.hero__tagline {
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 18px;
}
.hero__tagline::before {
  content: "“";
  color: var(--accent);
}
.hero__tagline::after {
  content: "”";
  color: var(--accent);
}

.hero__sub {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 28px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--primary);
  background: var(--primary-dim);
  padding: 7px 14px;
  border-radius: 999px;
}
.tag--big {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: var(--background-soft);
  border: 1px solid var(--line);
  padding: 10px 20px;
}

.hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  background: var(--text);
  padding: 13px 22px;
  border-radius: 999px;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 8px 20px -8px rgba(20, 20, 30, 0.35);
}
.social-link__icon {
  width: 19px;
  height: 19px;
  flex-shrink: 0;
}
.social-link:hover {
  background: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -8px rgba(47, 94, 255, 0.45);
}

.hero__photo {
  position: relative;
  justify-self: center;
}
.hero__photo-frame {
  position: relative;
  width: min(320px, 70vw);
  aspect-ratio: 1 / 1.05;
  border-radius: 28px;
  background: linear-gradient(155deg, var(--primary), var(--accent));
  padding: 6px;
  box-shadow: 0 30px 60px -20px rgba(47, 94, 255, 0.35);
}
.hero__photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 22px;
  background: var(--background-soft);
}
.hero__photo-fallback {
  position: absolute;
  inset: 6px;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 22px;
  background: var(--background-soft);
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--primary);
}
.hero__photo-frame.no-image img { display: none; }
.hero__photo-frame.no-image .hero__photo-fallback { display: flex; }

.hero__photo-tag {
  position: absolute;
  bottom: -18px;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 10px 25px rgba(20, 20, 30, 0.08);
}

.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid var(--line);
  border-radius: 999px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.scroll-cue span {
  width: 4px;
  height: 8px;
  background: var(--primary);
  border-radius: 999px;
  animation: scrollDown 1.8s ease infinite;
}
@keyframes scrollDown {
  0% { opacity: 0; transform: translateY(0); }
  40% { opacity: 1; }
  100% { opacity: 0; transform: translateY(14px); }
}

/* ==========================================================
   ABOUT
   ========================================================== */
.about__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
}
.about__text p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 20px;
}
.about__text p:last-child { margin-bottom: 0; }

.about__facts {
  display: flex;
  flex-direction: column;
  gap: 22px;
  border-left: 2px solid var(--line);
  padding-left: 28px;
}
.fact { display: flex; flex-direction: column; gap: 4px; }
.fact__label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--primary);
}
.fact__value {
  font-weight: 600;
  font-size: 1.05rem;
}

/* ==========================================================
   WHAT I'M INTO
   ========================================================== */
.into { background: var(--background-soft); }

.into__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.into__item {
  background: #fff;
  padding: 36px 28px;
  transition: background 0.25s ease, transform 0.25s ease;
}
.into__item:hover {
  background: var(--primary-dim);
  transform: translateY(-3px);
}
.into__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 14px;
}
.into__title {
  font-size: 1.2rem;
  margin-bottom: 10px;
}
.into__desc {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ==========================================================
   BLOG
   ========================================================== */
.blog__intro {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-top: -28px;
  margin-bottom: 40px;
}

.blog-post {
  display: block;
  background: var(--background-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 40px;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.blog-post:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -20px rgba(47, 94, 255, 0.3);
}
.blog-post__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.blog-post__date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted);
}
.blog-post__tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  background: var(--primary-dim);
  padding: 4px 12px;
  border-radius: 999px;
}
.blog-post__title {
  font-size: 1.5rem;
  margin-bottom: 12px;
}
.blog-post__excerpt {
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 18px;
}
.blog-post__link {
  font-weight: 700;
  color: var(--primary);
}
.blog-post:hover .blog-post__link { color: var(--accent); }

/* ==========================================================
   PROJECTS
   ========================================================== */
.project {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
  padding: 48px 0;
  border-top: 1px solid var(--line);
  position: relative;
}
.project:last-child { border-bottom: 1px solid var(--line); }

.project__number {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--primary-dim);
  line-height: 1;
  transition: color 0.3s ease;
}
.project:hover .project__number { color: var(--secondary); }

.project__name {
  font-size: 1.7rem;
  margin-bottom: 12px;
}
.project__desc {
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 20px;
}
.project__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.chip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--background-soft);
  border: 1px solid var(--line);
  padding: 5px 12px;
  border-radius: 999px;
  color: var(--muted);
}
.project__links {
  display: flex;
  gap: 24px;
}
.project__link {
  font-weight: 600;
  color: var(--primary);
}
.project__link:hover { color: var(--accent); }

.project--alt .project__number { color: var(--secondary); }
.project--alt:hover .project__number { color: var(--primary-dim); }

/* ==========================================================
   EXPERIENCE
   ========================================================== */
.exp {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.exp:last-child { border-bottom: 1px solid var(--line); }
.exp__date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--primary);
}
.exp__role { font-size: 1.25rem; margin-bottom: 4px; }
.exp__org { color: var(--muted); font-weight: 500; margin-bottom: 10px; }
.exp__desc { color: var(--muted); max-width: 600px; }

/* ==========================================================
   EDUCATION
   ========================================================== */
.edu {
  background: var(--background-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px;
}
.edu__school { font-size: 1.6rem; margin-bottom: 8px; }
.edu__meta { color: var(--muted); margin-bottom: 20px; }
.edu__subjects {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ==========================================================
   SKILLS
   ========================================================== */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px 28px;
}
.skill__cat {
  font-size: 1.05rem;
  margin-bottom: 8px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--secondary);
  display: inline-block;
}
.skill__items { color: var(--muted); font-size: 0.95rem; }

/* ==========================================================
   PERSONAL INTERESTS
   ========================================================== */
.interests__row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ==========================================================
   CONTACT
   ========================================================== */
.contact {
  background: var(--text);
  color: #fff;
  border-radius: 32px 32px 0 0;
  margin-top: 40px;
}
.contact .eyebrow { color: var(--secondary); }
.contact__title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin-bottom: 18px;
  max-width: 700px;
}
.contact__sub {
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  max-width: 520px;
  margin-bottom: 36px;
}
.contact__email {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 36px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}
.contact__email:hover { border-color: var(--secondary); }
.contact .social-link { background: rgba(255,255,255,0.12); color: #fff; box-shadow: none; }
.contact .social-link:hover { background: var(--secondary); color: var(--text); }

/* ==========================================================
   FOOTER
   ========================================================== */
.footer { background: var(--text); color: rgba(255,255,255,0.6); }
.footer__inner {
  padding-top: 28px;
  padding-bottom: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.9rem;
}
.footer__top { color: #fff; font-weight: 600; }
.footer__top:hover { color: var(--secondary); }

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: left;
    padding-top: calc(var(--nav-height) + 32px);
  }
  .hero__photo { justify-self: start; margin-top: 40px; }
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .about__facts { border-left: none; border-top: 2px solid var(--line); padding-left: 0; padding-top: 24px; }
  .into__list { grid-template-columns: repeat(2, 1fr); }
  .skills__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav__links,
  .nav__cta {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 20px 32px 28px;
    border-bottom: 1px solid var(--line);
    transform: translateY(-130%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  .nav__cta { top: unset; position: static; display: none; }
  .nav.is-open .nav__links { transform: translateY(0); opacity: 1; }
  .nav.is-open .nav__cta { display: block; margin: 0 32px 20px; width: fit-content; }
  .nav__link { width: 100%; padding: 12px 0; }
  .nav__toggle { display: flex; }

  .section-inner { padding: 72px 22px; }
  .project, .exp { grid-template-columns: 1fr; gap: 16px; }
  .project__number { font-size: 2.6rem; }
  .blog-post { padding: 26px 22px; }
  .into__list { grid-template-columns: 1fr; }
  .skills__grid { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================
   REDUCED MOTION
   ========================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .scroll-cue span { animation: none; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}