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

:root {
  --bg:        #0e0e0e;
  --surface:   #161616;
  --border:    #2a2a2a;
  --text:      #e8e4dc;
  --muted:     #888;
  --accent:    #c8a96e;
  --accent2:   #7e9e8c;
  --serif:     'DM Serif Display', Georgia, serif;
  --sans:      'DM Sans', sans-serif;
  --radius:    4px;
  --max:       1100px;
  --ease:      cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Noise overlay ──────────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none;
  opacity: .03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px;
  z-index: 999;
}

/* ── Typography helpers ─────────────────────────────── */
h1,h2,h3 { font-family: var(--serif); font-weight: 400; line-height: 1.15; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 2rem; }

/* ── Nav ────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  background: rgba(14,14,14,.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background .3s var(--ease);
}

nav .inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max); margin: 0 auto; padding: 0 2rem;
}

.nav-logo {
  font-family: var(--serif);
  font-size: 1.4rem;
  letter-spacing: -.01em;
  color: var(--accent);
}

.nav-links { display: flex; gap: 2.5rem; list-style: none; }

.nav-links a {
  font-size: .85rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color .25s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: .35rem;
  margin-left: 2rem;
}
.lang-btn {
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--muted);
  transition: color .2s;
}
.lang-btn:hover { color: var(--text); }
.lang-active { color: var(--accent) !important; font-weight: 500; }
.lang-sep { color: var(--border); font-size: .8rem; }

/* ── Hero ───────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 8rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

/* Decorative circle */
#hero::after {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  border: 1px solid var(--border);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  opacity: .35;
  pointer-events: none;
}

.hero-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: .3rem .9rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp .7s var(--ease) .2s forwards;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6.5rem);
  letter-spacing: -.02em;
  color: var(--text);
  opacity: 0;
  animation: fadeUp .8s var(--ease) .4s forwards;
}

.hero-title em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  margin: 1.5rem auto 2.5rem;
  max-width: 480px;
  color: var(--muted);
  font-size: 1.05rem;
  opacity: 0;
  animation: fadeUp .8s var(--ease) .6s forwards;
}

.btn {
  display: inline-block;
  padding: .85rem 2.2rem;
  border-radius: var(--radius);
  font-size: .9rem;
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: .06em;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
  opacity: 0;
  animation: fadeUp .8s var(--ease) .8s forwards;
}

.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.4); }

.btn-primary {
  background: var(--accent);
  color: #0e0e0e;
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
  margin-left: 1rem;
}

/* ── Sections shared ────────────────────────────────── */
section { padding: 7rem 0; }
.section-label {
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 1rem;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}
.section-divider {
  width: 48px; height: 2px;
  background: var(--accent);
  margin-bottom: 3rem;
}

/* ── About ──────────────────────────────────────────── */
#about { background: var(--surface); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image .frame {
  width: 100%;
  aspect-ratio: 4/5;
  background: #1f1f1f;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: .9rem;
  letter-spacing: .05em;
}

/* Corner accent */
.about-image::before {
  content: '';
  position: absolute;
  inset: -12px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  pointer-events: none;
}

.about-text p { color: var(--muted); margin-bottom: 1.25rem; }

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 2rem;
}

.skill-tag {
  padding: .3rem .85rem;
  background: rgba(200,169,110,.08);
  border: 1px solid rgba(200,169,110,.2);
  border-radius: 100px;
  font-size: .8rem;
  color: var(--accent);
}

/* ── Services / Work ────────────────────────────────── */
#services { background: var(--bg); }

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.work-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
  position: relative;
  overflow: hidden;
}

.work-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}

.work-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.work-card:hover::before { transform: scaleX(1); }

.work-num {
  font-family: var(--serif);
  font-size: 2.5rem;
  color: var(--border);
  margin-bottom: 1rem;
}

.work-card h3 { font-size: 1.2rem; margin-bottom: .6rem; }
.work-card p { font-size: .9rem; color: var(--muted); }

/* ── Learning Resources ─────────────────────────────── */
#learning { background: var(--surface); }

.resources-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.resource-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.resource-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}

.resource-card:hover { border-color: var(--accent2); transform: translateY(-4px); }
.resource-card:hover::before { transform: scaleX(1); }

.resource-type {
  display: inline-block;
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent2);
  border: 1px solid rgba(126,158,140,.3);
  padding: .2rem .6rem;
  border-radius: 100px;
  align-self: flex-start;
  margin-bottom: 1rem;
}

.resource-card h3 {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: .5rem;
  color: var(--text);
}

.resource-card p {
  font-size: .85rem;
  color: var(--muted);
  flex: 1;
  margin-bottom: 1.25rem;
}

.resource-link {
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--accent);
  transition: opacity .2s;
  word-break: break-all;
}

.resource-card:hover .resource-link { opacity: .7; }

/* ── Contact ────────────────────────────────────────── */
#contact { background: var(--surface); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}

.contact-info p { color: var(--muted); margin-bottom: 2rem; }

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-detail span {
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-detail a {
  color: var(--accent);
  font-size: 1rem;
  transition: opacity .2s;
}
.contact-detail a:hover { opacity: .7; }

form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: .4rem; }

.form-group label {
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-group input,
.form-group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .85rem 1rem;
  color: var(--text);
  font-family: var(--sans);
  font-size: .95rem;
  transition: border-color .2s;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea { min-height: 130px; }

.form-submit {
  background: var(--accent);
  color: #0e0e0e;
  border: none;
  border-radius: var(--radius);
  padding: .9rem 2rem;
  font-family: var(--sans);
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: .06em;
  cursor: pointer;
  align-self: flex-start;
  transition: opacity .2s, transform .2s;
}
.form-submit:hover { opacity: .85; transform: translateY(-1px); }

.form-msg {
  padding: .8rem 1rem;
  border-radius: var(--radius);
  font-size: .9rem;
}
.form-msg.success { background: rgba(126,158,140,.15); border: 1px solid var(--accent2); color: var(--accent2); }
.form-msg.error   { background: rgba(200,80,80,.1);  border: 1px solid #c85050; color: #e07070; }

/* ── Footer ─────────────────────────────────────────── */
footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

footer p { font-size: .82rem; color: var(--muted); }
.footer-links { display: flex; gap: .5rem; justify-content: center; margin-top: .5rem; }
.footer-links a { font-size: .8rem; color: var(--muted); transition: color .2s; }
.footer-links a:hover { color: var(--accent); }

/* ── Animations ─────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero-tag, .hero-title, .hero-sub, .btn { opacity: 1; }
  .reveal { opacity: 1; transform: none; }
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 800px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .work-grid { grid-template-columns: 1fr 1fr; }
  .resources-grid { grid-template-columns: 1fr 1fr; }
  .about-image { max-width: 360px; }
  .about-image::before { display: none; }
}

@media (max-width: 560px) {
  .work-grid, .resources-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: fixed;
    top: 60px; left: 0; right: 0;
    background: rgba(14,14,14,.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0 1.5rem;
    z-index: 99;
  }
  .nav-links.open li a {
    display: block;
    padding: .85rem 2rem;
    font-size: 1rem;
    letter-spacing: .1em;
  }
  .hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px; height: 32px;
    cursor: pointer;
    background: none; border: none;
    padding: 0;
  }
  .hamburger span {
    display: block;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform .25s var(--ease), opacity .25s;
  }
  .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .hamburger.open span:nth-child(2) { opacity: 0; }
  .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (min-width: 561px) {
  .hamburger { display: none; }
}