:root {
  /* Light theme palette */
  --bg: #ffffff;
  --bg-2: #f8fafc; /* slate-50 */
  --text: #0f172a; /* slate-900 */
  --muted: #667085; /* zinc-500-ish */
  --line: #e5e7eb; /* gray-200 */
  --g1: #2563eb; /* blue-600 */
  --g2: #22d3ee; /* cyan-400 */
  --brand: #2563eb; /* link color */
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(1000px 400px at 10% -10%, rgba(37,99,235,.08), transparent 60%),
    radial-gradient(800px 360px at 90% -5%, rgba(34,211,238,.07), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.stack { display: grid; gap: 1rem; }
.stack-lg { display: grid; gap: 2rem; }
.row { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.space-between { justify-content: space-between; }

.pill { padding: 0.45rem 0.8rem; border-radius: 999px; background: #f2f4f7; color: #475467; font-weight: 600; font-size: 0.8rem; border: 1px solid var(--line); }
.tag { padding: .25rem .5rem; border: 1px solid var(--line); color: var(--muted); border-radius: 999px; font-size: .75rem; }
.title { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.1; margin: 0; letter-spacing: .2px; color: #0b1220; }
.subtitle { color: var(--muted); margin: 0; max-width: 70ch; }
.hero { padding: 80px 0 48px; position: relative; }
.gradient-text { background: linear-gradient(90deg, var(--g1), var(--g2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.cta { display: inline-block; padding: 0.85rem 1.15rem; border-radius: 12px; background: linear-gradient(90deg, var(--g1), var(--g2)); color: #ffffff; font-weight: 800; border: 0; box-shadow: 0 6px 16px rgba(37, 99, 235, .18); }
.cta.secondary { background: transparent; color: var(--text); border: 1px solid var(--line); box-shadow: none; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.2rem; }
.card { background: linear-gradient(#ffffff, #ffffff) padding-box,
                   linear-gradient(120deg, rgba(37,99,235,.4), rgba(34,211,238,.4)) border-box;
         border: 1px solid transparent; border-radius: 16px; padding: 1.1rem; transition: .25s ease; position: relative; overflow: hidden; }
.card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(120px 40px at 20% 0%, rgba(34,211,238,.08), transparent 60%), radial-gradient(120px 40px at 80% 0%, rgba(37,99,235,.08), transparent 60%); pointer-events: none; opacity: .6; }
.card--hover:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(2,6,23,.10); }
.card--hover:hover::after { opacity: 1; }

/* 3D tilt cards */
.card-3d {
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transform-style: preserve-3d;
  will-change: transform;
}
.card-3d::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(200px 80px at var(--mx, 50%) var(--my, 50%), rgba(34,211,238,.18), transparent 60%);
  opacity: 0;
  transition: .2s ease;
}
.card-3d:hover::before { opacity: .6; }

.muted { color: var(--muted); }
.footer { border-top: 1px solid var(--line); padding: 28px 0; margin-top: 64px; background: rgba(255,255,255,.6); }

.nav { padding: 14px 0; border-bottom: 1px solid var(--line); position: sticky; top: 0; backdrop-filter: blur(10px); background: rgba(255,255,255,.7); z-index: 50; }
.nav a { font-weight: 600; }
.nav-grid { display: grid; grid-template-columns: 0.9fr auto 1.1fr; align-items: center; gap: 16px; }
.menu { justify-self: center; }
.actions { justify-self: end; display: flex; gap: 16px; align-items: center; }
.lang-switch { display: inline-flex; align-items: center; gap: 6px; padding: 0; background: transparent; border: none; }
.lang-globe { display: none; }
.lang-item {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 28px;
  padding: 0 8px;
  border-radius: 999px; /* pill */
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .3px;
  line-height: 1;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 1px 2px rgba(2,6,23,.04);
}
.lang-item:hover {
  background: rgba(37,99,235,.06);
  text-decoration: none;
}
.lang-item:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37,99,235,.20);
}
.lang-item[aria-current="page"] {
  color: var(--g1);
  background: rgba(37,99,235,.08);
  border-color: rgba(37,99,235,.45);
  box-shadow: 0 0 0 2px rgba(37,99,235,.10);
}
.lang-item[aria-current="page"], .lang-item.active { outline: none; background: transparent; }
.brand { display: inline-flex; gap: 10px; align-items: center; font-weight: 900; letter-spacing: .2px; color: #0f172a; }
.brand-dot { width: 10px; height: 10px; border-radius: 999px; background: linear-gradient(90deg, var(--g1), var(--g2)); box-shadow: 0 0 16px rgba(37,99,235,.25); }

.floating-shapes { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
#floating-shapes-canvas { width: 100%; height: 100%; display: block; }

/* Decorative underline for titles */
.title-underline { position: relative; padding-bottom: 8px; }
.title-underline::after { content: ""; position: absolute; left: 0; bottom: 0; width: 56px; height: 3px; border-radius: 999px; background: linear-gradient(90deg, var(--g1), var(--g2)); }

/* Subtle noise overlay */
.bg-noise { position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: .06; background-size: 140px 140px; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' fill='white' opacity='0.6'/></svg>"); }

/* Sections spacing */
.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--line); }
@media (min-width: 960px) { .section { padding: 80px 0; } }

/* Logo cards (technologies) */
.logo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.logo-card { display: grid; gap: 10px; place-items: center; padding: 12px; border-radius: 16px; border: 1px solid var(--line); background: #fff; text-decoration: none; position: relative; overflow: hidden; }
.logo-card img { width: 56px; height: 56px; object-fit: contain; }
.logo-card span { color: #0f172a; font-weight: 800; font-size: .95rem; letter-spacing: .2px; }
.logo-card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(120px 40px at 20% 0%, rgba(34,211,238,.06), transparent 60%), radial-gradient(120px 40px at 80% 0%, rgba(37,99,235,.06), transparent 60%); pointer-events: none; }
.logo-card:hover { box-shadow: 0 10px 24px rgba(2,6,23,.08); transform: translateY(-2px); }

/* Service cards with icons */
.service-card { display: grid; grid-template-rows: 110px auto; gap: 10px; }
.service-card-body { display: grid; gap: 6px; }

/* Project cards with thumbnail */
.project-card { display: grid; grid-template-rows: 110px auto; gap: 10px; }
.project-thumb { width: 100%; height: 110px; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 1px 2px rgba(2,6,23,.04); background: #fff; }
.tech-article { padding-top: 24px; }
@media (min-width: 960px) { .tech-article { padding-top: 36px; } }
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.gallery-item { display: block; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); background: #fff; position: relative; z-index: 1; }
.gallery-item img { width: 100%; height: 200px; object-fit: cover; display: block; background: #fff; }
.geo-shapes { position: absolute; inset: 0; pointer-events: none; z-index: 0; opacity: .35; }
.shape { position: absolute; width: 180px; height: 180px; filter: drop-shadow(0 8px 18px rgba(37,99,235,.08)); }
.s1 { top: -20px; right: -10px; transform: rotate(8deg); }
.s2 { bottom: -30px; left: -20px; transform: rotate(-6deg); }
.s3 { top: 20%; left: 50%; transform: translateX(-50%) rotate(12deg); width: 140px; height: 140px; opacity: .5; }
.services.s1 { top: -10px; right: 10px; }
.services.s2 { bottom: -40px; left: -30px; }
.projects.s1 { top: -30px; right: 40px; }
.projects.s3 { top: 30%; }
.contacts.s2 { left: 10%; }

@media (prefers-reduced-motion: reduce) {
  .floating-shapes { opacity: .25; }
}

@media (max-width: 768px) {
  .shape { width: 120px; height: 120px; }
  .s3 { display: none; }
}

/* Mobile navigation */
.menu-toggle { display: none; align-items: center; justify-content: center; width: 40px; height: 36px; border-radius: 10px; border: 1px solid var(--line); background: #fff; box-shadow: 0 1px 2px rgba(2,6,23,.06); position: relative; cursor: pointer; }
.menu-toggle .menu-bar { position: absolute; left: 50%; width: 22px; height: 2px; background: #0f172a; border-radius: 2px; transform: translateX(-50%); transition: transform .2s ease, opacity .2s ease; }
.menu-toggle .menu-bar:nth-child(1) { top: 50%; transform: translateX(-50%) translateY(-7px); }
.menu-toggle .menu-bar:nth-child(2) { top: 50%; transform: translateX(-50%) translateY(0); }
.menu-toggle .menu-bar:nth-child(3) { top: 50%; transform: translateX(-50%) translateY(7px); }
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1) { top: 50%; transform: translateX(-50%) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(3) { top: 50%; transform: translateX(-50%) rotate(-45deg); }

.mobile-drawer { position: fixed; inset: 0; z-index: 200; pointer-events: none; display: none; }
.mobile-drawer .mobile-backdrop { position: absolute; inset: 0; background: rgba(2,6,23,.60); backdrop-filter: blur(2px); opacity: 0; transition: opacity .2s ease; border: 0; padding: 0; margin: 0; width: 100%; height: 100%; pointer-events: none; z-index: 1; }
.mobile-drawer .mobile-drawer-inner { position: absolute; top: 0; left: 0; width: min(86%, 360px); height: 100%; background: #ffffff; border-right: 1px solid var(--line); box-shadow: 10px 0 30px rgba(2,6,23,.10); transform: translateX(-100%); transition: transform .25s ease; display: grid; grid-template-rows: auto 1fr auto; gap: 12px; z-index: 2; }
.mobile-drawer .mobile-drawer-header, .mobile-drawer .mobile-menu-links, .mobile-drawer .mobile-actions { background: #ffffff; }
.mobile-drawer .mobile-drawer-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.mobile-drawer .menu-close { width: 34px; height: 34px; border-radius: 10px; border: 1px solid var(--line); background: #fff; display: inline-flex; align-items: center; justify-content: center; position: relative; }
.mobile-drawer .menu-close .close-bar { position: absolute; width: 16px; height: 2px; background: #0f172a; border-radius: 2px; }
.mobile-drawer .menu-close .close-bar:first-child { transform: rotate(45deg); }
.mobile-drawer .menu-close .close-bar:last-child { transform: rotate(-45deg); }
.mobile-drawer .mobile-menu-links { display: flex; flex-direction: column; padding: 10px 16px; gap: 6px; align-items: stretch; }
.mobile-drawer .mobile-menu-links a { display: block; padding: 10px 12px; border-radius: 10px; color: #0f172a; font-weight: 700; letter-spacing: .2px; background: #ffffff; line-height: 1.25; }
.mobile-drawer .mobile-menu-links a:hover { background: rgba(37,99,235,.06); text-decoration: none; }
.mobile-drawer .mobile-actions { display: grid; gap: 12px; padding: 12px 16px 18px; border-top: 1px solid var(--line); }

/* Ensure current language pill is opaque in the drawer */
.mobile-drawer .mobile-actions .lang-item[aria-current="page"] { background: #ffffff; }

.mobile-drawer[data-open="true"] { pointer-events: auto; }
.mobile-drawer[data-open="true"] .mobile-backdrop { opacity: 1; pointer-events: auto; }
.mobile-drawer[data-open="true"] .mobile-drawer-inner { transform: translateX(0); }

.no-scroll, .no-scroll body { overflow: hidden; }

@media (max-width: 768px) {
  .nav-grid { grid-template-columns: 1fr auto; }
  .menu { display: none; }
  .actions { display: none; }
  .menu-toggle { display: inline-flex; }
  .mobile-drawer { display: block; }
  /* When mobile menu is open, make header solid to avoid translucency under drawer */
  .no-scroll .nav { background: #ffffff !important; backdrop-filter: none !important; }
}