/* ── Design Tokens — Dark (Default) ────────────────────────────────────────── */
:root {
  --bg:          #151312;
  --bg-card:     #1c1a18;
  --bg-subtle:   #222019;
  --border:      rgba(255,255,255,0.08);
  --border-hover:rgba(197,255,65,0.22);
  --text:        #ffffff;
  --text-muted:  #998f8f;
  --text-dim:    #6a6b6e;
  --lime:        #c5ff41;
  --lime-dim:    rgba(197,255,65,0.12);
  --lime-shadow: rgba(197,255,65,0.28);
  --orange:      #f46c38;
  --orange-dim:  rgba(244,108,56,0.12);
  --nav-bg:      rgba(21,19,18,0.85);
  --nav-border:  rgba(255,255,255,0.07);

  /* constants */
  --font:          'Poppins', sans-serif;
  --radius:        14px;
  --radius-pill:   100px;
  --nav-h:         68px;
  --max-w:         1160px;
  --transition:    0.22s ease;
}

/* ── Design Tokens — Light ──────────────────────────────────────────────────── */
[data-theme="light"] {
  --bg:          #f5f2ee;
  --bg-card:     #ffffff;
  --bg-subtle:   #edeae5;
  --border:      rgba(21,19,18,0.09);
  --border-hover:rgba(244,108,56,0.35);
  --text:        #151312;
  --text-muted:  #5a524c;
  --text-dim:    #8a827a;
  /* In light mode the accent becomes the Framer template orange (#f46c38) */
  --lime:        #f46c38;
  --lime-dim:    rgba(244,108,56,0.12);
  --lime-shadow: rgba(244,108,56,0.28);
  --orange:      #f46c38;
  --orange-dim:  rgba(244,108,56,0.12);
  --nav-bg:      rgba(245,242,238,0.88);
  --nav-border:  rgba(21,19,18,0.08);
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ── Typography ────────────────────────────────────────────────────────────── */
.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.section-title span { color: var(--lime); }

/* ── Layout ────────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
section { padding: 120px 0; }

/* ── Navigation ────────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nav-border);
  transition: background 0.3s ease, border-color 0.3s ease;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  gap: 12px;
}
.nav__logo {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  transition: color var(--transition);
  flex-shrink: 0;
}
.nav__logo:hover { color: var(--lime); }
.nav__links {
  display: flex;
  align-items: center;
  gap: 1px;
  flex: 1;
  justify-content: center;
}
.nav__link {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text-muted);
  padding: 6px 9px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover { color: var(--text); background: var(--border); }
.nav__link.active { color: var(--lime); background: var(--lime-dim); }

.nav__right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--lime);
  border-color: var(--border-hover);
  background: var(--lime-dim);
}
.theme-toggle:active { transform: scale(0.92); }

/* Icon visibility — driven by data-theme on <html> */
.t-moon, .t-sun {
  display: block;
  pointer-events: none;
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.t-sun  { display: none; }
[data-theme="light"] .t-moon { display: none; }
[data-theme="light"] .t-sun  { display: block; }
/* Premium micro-interaction: icon rotates on hover */
.theme-toggle:hover .t-moon { transform: rotate(-18deg); }
.theme-toggle:hover .t-sun  { transform: rotate(45deg); }

.nav__cta {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--bg);
  background: var(--lime);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  transition: transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--lime-shadow);
}

/* Hamburger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav__mobile {
  display: none;
  flex-direction: column;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  padding: 16px 24px 24px;
  gap: 4px;
  border-bottom: 1px solid var(--nav-border);
  z-index: 999;
  transition: background 0.3s ease;
}
.nav__mobile.open { display: flex; }
.nav__mobile .nav__link { font-size: 15px; padding: 11px 16px; }

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-pill);
  padding: 13px 26px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  text-decoration: none;
}
.btn--primary {
  background: var(--lime);
  color: var(--bg);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--lime-shadow);
}
.btn--outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--outline:hover {
  background: var(--border);
  transform: translateY(-2px);
}

/* ── Cards ──────────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
}

/* ── Tags / Badges ──────────────────────────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  color: var(--text-muted);
  white-space: nowrap;
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}
.tag--lime {
  border-color: rgba(197,255,65,0.3);
  color: var(--lime);
  background: var(--lime-dim);
}
[data-theme="light"] .tag--lime {
  border-color: rgba(244,108,56,0.35);
}
.tag--orange {
  border-color: rgba(244,108,56,0.3);
  color: var(--orange);
  background: var(--orange-dim);
}
[data-theme="light"] .tag--orange {
  border-color: rgba(196,78,28,0.3);
}

/* ── Stat Block ─────────────────────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 48px;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.stat {
  background: var(--bg-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  transition: background 0.3s ease;
}
.stat__num {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--lime);
  line-height: 1;
}
.stat__label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  line-height: 1.3;
}

/* ── Section divider ────────────────────────────────────────────────────────── */
.divider { width: 100%; height: 1px; background: var(--border); }

/* ── Page header ────────────────────────────────────────────────────────────── */
.page-header { padding: calc(var(--nav-h) + 80px) 0 80px; }

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  transition: border-color 0.3s ease;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer__copy { font-size: 13px; color: var(--text-dim); }
.footer__links { display: flex; gap: 20px; }
.footer__links a {
  font-size: 13px;
  color: var(--text-dim);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--lime); }

/* ── Social links (shared: hero, contact, footer) ───────────────────────────── */
.socials { display: flex; gap: 10px; flex-wrap: wrap; }
.social-link {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
  transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition);
}
.social-link svg { width: 18px; height: 18px; }
.social-link:hover {
  color: var(--lime);
  border-color: var(--border-hover);
  background: var(--lime-dim);
  transform: translateY(-2px);
}

/* ── CV floating button ─────────────────────────────────────────────────────── */
#cv-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9998;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 11px 20px;
  background: var(--lime);
  color: var(--bg);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 24px var(--lime-shadow);
  transition: transform var(--transition), box-shadow var(--transition), background 0.3s ease, color 0.3s ease;
  text-decoration: none;
}
#cv-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--lime-shadow);
}

/* ── Scroll reveal ──────────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── Contact Form ───────────────────────────────────────────────────────────── */
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 13px 16px;
  outline: none;
  resize: none;
  transition: border-color var(--transition), background 0.3s ease, color 0.3s ease;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--border-hover); }
.form-group textarea { min-height: 130px; }
#form-msg {
  display: none;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
}
#form-msg.success { background: var(--lime-dim); color: var(--lime); border: 1px solid var(--border-hover); }
#form-msg.error   { background: var(--orange-dim); color: var(--orange); border: 1px solid rgba(244,108,56,0.3); }

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  section { padding: 80px 0; }
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .form-row { flex-direction: column; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .section-title { font-size: 2rem; }
}