/* ============================================================
   Arastatek — Modern redesign
   Light engineering theme, steel-blue brand palette,
   performance-first (no frameworks)
   ============================================================ */

:root {
  --bg: #fbfcfe;
  --bg-soft: #eef3f9;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --line: #dfe7f0;
  --line-strong: #b9cde0;
  --accent: #3b6ea5;        /* deepened logo blue (AA on white) */
  --accent-2: #0e8f8e;      /* restrained teal, circuit feel */
  --brand-blue: #4a77a4;    /* exact logo blue */
  --navy: #16324f;
  --navy-deep: #102539;
  --accent-glow: rgba(59, 110, 165, 0.25);
  --amber: #d97706;
  --text: #1c2b3a;
  --text-dim: #51647a;
  --radius: 16px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; }

.container { width: min(1160px, 92%); margin-inline: auto; }

::selection { background: var(--accent); color: #fff; }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--accent); color: #fff; padding: .6rem 1rem; border-radius: 0 0 8px 0;
  font-weight: 700;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s, box-shadow .3s;
}
.site-header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 4px 18px rgba(22, 50, 79, 0.06);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex; align-items: center; gap: .65rem;
  font-weight: 800; font-size: 1.3rem; color: var(--text); letter-spacing: -0.02em;
}
.brand .logo-img {
  height: 42px; width: auto; flex: none;
  transition: transform .35s cubic-bezier(.22,1,.36,1);
}
.brand:hover .logo-img { transform: rotate(-12deg) scale(1.06); }
.brand .word-img {
  height: 21px; width: auto; flex: none;
}

.nav-links { display: flex; gap: .25rem; list-style: none; align-items: center; }
.nav-links a {
  color: var(--text-dim); font-weight: 500; font-size: .95rem;
  padding: .5rem .9rem; border-radius: 10px;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: rgba(22, 50, 79, 0.06); }
.nav-links a.active { color: var(--accent); font-weight: 700; }
.nav-links a.nav-cta {
  color: #fff; background: var(--accent); font-weight: 700; margin-left: .5rem;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: transform .2s, box-shadow .2s, background .2s;
}
.nav-links a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 24px var(--accent-glow); background: var(--navy); color: #fff; }

/* language switcher */
.nav-links a.lang-switch {
  font-family: var(--mono); font-size: .78rem; font-weight: 700; letter-spacing: .06em;
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: .32rem .8rem; margin-left: .4rem; color: var(--text-dim);
}
.nav-links a.lang-switch:hover { border-color: var(--accent); color: var(--accent); background: rgba(59,110,165,.06); }

.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: .5rem;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--text);
  margin: 5px 0; border-radius: 2px; transition: transform .3s, opacity .3s;
}
.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); }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; top: 72px; right: 0; left: 0;
    flex-direction: column; align-items: stretch; gap: .25rem;
    background: rgba(255, 255, 255, 0.98); border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px rgba(22, 50, 79, 0.08);
    padding: 1rem 4%;
    transform: translateY(-130%); transition: transform .35s cubic-bezier(.4,0,.2,1);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { display: block; padding: .85rem 1rem; }
  .nav-links a.nav-cta { margin-left: 0; text-align: center; }
  .nav-links a.lang-switch { margin-left: 0; text-align: center; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  padding: 130px 0 90px;
  overflow: hidden;
  isolation: isolate;
  background: linear-gradient(180deg, #f2f6fb 0%, var(--bg) 100%);
}
.hero.hero-sub { min-height: 62svh; padding-bottom: 60px; }

/* animated PCB grid background */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background-image:
    linear-gradient(rgba(59, 110, 165, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 110, 165, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, #000 30%, transparent 75%);
  animation: grid-pan 24s linear infinite;
}
@keyframes grid-pan {
  to { background-position: 48px 48px; }
}
/* glow blobs */
.hero::after {
  content: ""; position: absolute; z-index: -3; inset: 0;
  background:
    radial-gradient(560px 420px at 18% 22%, rgba(74, 119, 164, 0.14), transparent 70%),
    radial-gradient(620px 480px at 82% 70%, rgba(14, 143, 142, 0.10), transparent 70%),
    radial-gradient(420px 320px at 60% 10%, rgba(22, 50, 79, 0.08), transparent 70%);
  animation: blob-drift 16s ease-in-out infinite alternate;
}
@keyframes blob-drift {
  to { transform: translate3d(0, -28px, 0) scale(1.06); }
}

.hero-circuit {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  opacity: .55;
}
.hero-circuit path {
  fill: none; stroke: var(--accent); stroke-width: 1.5; opacity: .3;
  stroke-dasharray: 6 10;
  animation: trace-flow 3.2s linear infinite;
}
.hero-circuit circle { fill: var(--accent); opacity: .5; }
.hero-circuit .pulse { animation: node-pulse 2.4s ease-in-out infinite; }
@keyframes trace-flow { to { stroke-dashoffset: -64; } }
@keyframes node-pulse {
  0%, 100% { opacity: .25; r: 3; }
  50% { opacity: .9; }
}

.hero-inner { position: relative; }
.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--mono); font-size: .8rem; letter-spacing: .08em;
  color: var(--accent); border: 1px solid var(--line-strong);
  background: rgba(59, 110, 165, 0.07);
  padding: .4rem 1rem; border-radius: 999px; margin-bottom: 1.4rem;
}
.hero-badge::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 8px rgba(14, 143, 142, .6);
  animation: node-pulse 2s ease-in-out infinite;
}
.hero h1 {
  font-size: clamp(2.3rem, 5.6vw, 4.2rem);
  line-height: 1.08; letter-spacing: -0.03em; font-weight: 800;
  max-width: 17ch; color: var(--navy);
}
.hero h1 .grad {
  background: linear-gradient(92deg, var(--accent) 10%, var(--brand-blue) 55%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead {
  margin-top: 1.4rem; font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-dim); max-width: 56ch;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

/* staggered entrance */
.hero [data-stagger] { opacity: 0; transform: translateY(26px); animation: rise .8s cubic-bezier(.22,1,.36,1) forwards; }
.hero [data-stagger="1"] { animation-delay: .05s; }
.hero [data-stagger="2"] { animation-delay: .18s; }
.hero [data-stagger="3"] { animation-delay: .32s; }
.hero [data-stagger="4"] { animation-delay: .46s; }
@keyframes rise { to { opacity: 1; transform: none; } }

.hero-scroll-hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  color: var(--text-dim); font-size: 1.4rem; opacity: .6;
  animation: bob 2s ease-in-out infinite;
}
@keyframes bob { 50% { transform: translate(-50%, 8px); } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  font-weight: 700; font-size: 1rem;
  padding: .9rem 1.7rem; border-radius: 12px;
  transition: transform .2s, box-shadow .2s, background .2s, border-color .2s;
  border: 1px solid transparent; cursor: pointer;
}
.btn-primary {
  background: linear-gradient(92deg, var(--accent), var(--navy));
  color: #fff;
  box-shadow: 0 6px 22px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 30px var(--accent-glow); }
.btn-ghost {
  border-color: var(--line-strong); color: var(--navy);
  background: #fff;
}
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--accent); background: rgba(59,110,165,.06); }
.btn-wa {
  background: #1faa55; color: #fff;
  box-shadow: 0 6px 20px rgba(31, 170, 85, .3);
}
.btn-wa:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(31, 170, 85, .4); }

/* ---------- Sections ---------- */
section { padding: 96px 0; position: relative; }
section.alt { background: var(--bg-soft); border-block: 1px solid var(--line); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 3.4rem; }
.section-head .kicker {
  font-family: var(--mono); font-size: .8rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--accent-2); font-weight: 700;
}
.section-head h2 {
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  letter-spacing: -0.02em; margin-top: .6rem; line-height: 1.2;
  color: var(--navy);
}
.section-head p { color: var(--text-dim); margin-top: .9rem; }

/* ---------- Reveal on scroll ----------
   Hidden initial state only applies when JS is confirmed alive
   (html.js set inline in <head>), so content never stays blank. */
.js .reveal {
  opacity: 0; transform: translateY(34px);
  transition: opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1);
  transition-delay: var(--d, 0s);
}
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Cards grid ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  position: relative; background: var(--bg-card);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem 1.6rem; overflow: hidden;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
  transition: transform .3s cubic-bezier(.22,1,.36,1), border-color .3s, box-shadow .3s;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
  transform: scaleX(0); transition: transform .45s cubic-bezier(.22,1,.36,1);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: 0 18px 40px rgba(22, 50, 79, 0.13);
}
.card:hover::before { transform: scaleX(1); }
.card .icon {
  width: 52px; height: 52px; display: grid; place-items: center;
  font-size: 1.5rem; border-radius: 13px; margin-bottom: 1.1rem;
  background: linear-gradient(135deg, rgba(59, 110, 165, .12), rgba(14, 143, 142, .10));
  border: 1px solid var(--line);
  transition: transform .3s;
}
.card:hover .icon { transform: scale(1.1) rotate(-4deg); }
.card h3 { font-size: 1.13rem; letter-spacing: -0.01em; margin-bottom: .55rem; color: var(--navy); }
.card p { color: var(--text-dim); font-size: .95rem; }

/* tag chips */
.chips { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1rem; }
.chip {
  font-family: var(--mono); font-size: .72rem; color: var(--accent);
  border: 1px solid var(--line); background: rgba(59, 110, 165, .06);
  border-radius: 999px; padding: .22rem .65rem; font-weight: 600;
}

/* ---------- Expertise marquee-ish grid ---------- */
.exp-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
@media (max-width: 980px) { .exp-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .exp-grid { grid-template-columns: repeat(2, 1fr); } }
.exp-item {
  display: flex; align-items: center; gap: .8rem;
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: 13px; padding: .95rem 1.1rem; font-weight: 600; font-size: .92rem;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.exp-item:hover { transform: translateY(-4px) scale(1.02); border-color: var(--accent); box-shadow: 0 10px 24px rgba(22, 50, 79, 0.10); }
.exp-item .em { font-size: 1.35rem; flex: none; }

/* ---------- Process timeline ---------- */
.timeline { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.2rem; }
@media (max-width: 980px) { .timeline { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .timeline { grid-template-columns: 1fr; } }
.step {
  position: relative; background: var(--bg-card);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.5rem 1.2rem 1.3rem; text-align: center;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.step:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: 0 14px 30px rgba(22, 50, 79, 0.12); }
.step .num {
  font-family: var(--mono); font-size: .72rem; color: var(--accent);
  letter-spacing: .14em; font-weight: 700;
}
.step .em { font-size: 1.9rem; margin: .55rem 0 .5rem; }
.step h3 { font-size: .98rem; color: var(--navy); }

/* detailed process rows */
.proc-row {
  display: grid; grid-template-columns: 84px 1fr; gap: 1.4rem;
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.6rem;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.proc-row:hover { transform: translateX(8px); border-color: var(--line-strong); box-shadow: 0 10px 26px rgba(22, 50, 79, 0.10); }
.proc-row + .proc-row { margin-top: 1rem; }
.proc-row .badge-num {
  width: 64px; height: 64px; border-radius: 16px;
  display: grid; place-items: center;
  font-family: var(--mono); font-weight: 800; font-size: 1.3rem; color: var(--accent);
  background: linear-gradient(135deg, rgba(59, 110, 165, .12), rgba(14, 143, 142, .08));
  border: 1px solid var(--line-strong);
}
.proc-row h3 { font-size: 1.12rem; margin-bottom: .4rem; color: var(--navy); }
.proc-row h3 .em { margin-right: .4rem; }
.proc-row p { color: var(--text-dim); font-size: .95rem; }
@media (max-width: 560px) { .proc-row { grid-template-columns: 1fr; } }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; text-align: center; }
@media (max-width: 820px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 2.1rem 1rem 1.8rem;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.stat:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: 0 14px 30px rgba(22, 50, 79, 0.10); }
.stat .val {
  font-size: clamp(2.2rem, 4.5vw, 3.1rem); font-weight: 800; letter-spacing: -0.03em;
  background: linear-gradient(92deg, var(--navy), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat .lbl { font-weight: 700; margin-top: .35rem; color: var(--navy); }
.stat .sub { color: var(--text-dim); font-size: .85rem; margin-top: .3rem; }

/* ---------- CTA band (dark navy contrast block) ---------- */
.cta-band {
  position: relative; text-align: center; overflow: hidden;
  border-radius: 24px; padding: 4.2rem 1.6rem;
  background:
    radial-gradient(640px 300px at 50% -40%, rgba(74, 119, 164, .5), transparent 70%),
    linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
  border: 1px solid var(--navy);
}
.cta-band h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); letter-spacing: -0.02em; color: #fff; }
.cta-band p { color: #b7c9db; margin: 1rem auto 2rem; max-width: 50ch; }
.cta-band .hero-ctas { justify-content: center; margin-top: 0; }
.cta-band .btn-primary {
  background: #fff; color: var(--navy);
  box-shadow: 0 6px 22px rgba(0, 0, 0, .25);
}
.cta-band .btn-ghost { border-color: rgba(255,255,255,.4); color: #fff; background: transparent; }
.cta-band .btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); }

/* ---------- Values (about) ---------- */
.about-cols { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: start; }
@media (max-width: 860px) { .about-cols { grid-template-columns: 1fr; } }
.about-cols h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.02em; margin-bottom: 1.1rem; color: var(--navy); }
.about-cols p { color: var(--text-dim); margin-bottom: 1rem; }
.about-panel {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.8rem;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
}
.about-panel ul { list-style: none; }
.about-panel li {
  display: flex; gap: .8rem; padding: .7rem 0; color: var(--text-dim);
  border-bottom: 1px dashed var(--line);
}
.about-panel li:last-child { border-bottom: 0; }
.about-panel li::before { content: "▸"; color: var(--accent); font-weight: 800; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2.4rem; align-items: start; }
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  display: flex; gap: 1rem; align-items: flex-start;
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: 14px; padding: 1.2rem 1.3rem; margin-bottom: 1rem;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.contact-card:hover { transform: translateX(6px); border-color: var(--line-strong); box-shadow: 0 8px 20px rgba(22, 50, 79, 0.09); }
.contact-card .em { font-size: 1.45rem; flex: none; }
.contact-card h3 { font-size: .95rem; color: var(--text-dim); font-weight: 600; }
.contact-card .val { font-weight: 700; font-size: 1.02rem; }
.contact-card .val a { color: var(--navy); }
.contact-card .val a:hover { color: var(--accent); }

.form-panel {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 2rem;
  box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
}
.form-panel h2 { font-size: 1.4rem; margin-bottom: 1.4rem; letter-spacing: -0.01em; color: var(--navy); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-size: .86rem; font-weight: 600; color: var(--text-dim); margin-bottom: .4rem; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--text);
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 10px; padding: .8rem 1rem;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59, 110, 165, .15);
  background: #fff;
}
.field textarea { min-height: 130px; resize: vertical; }

.map-wrap {
  margin-top: 3rem; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); box-shadow: 0 1px 3px rgba(22, 50, 79, 0.04);
}
.map-wrap iframe { width: 100%; height: 380px; border: 0; display: block; }

/* ---------- Footer (dark navy) ---------- */
.site-footer {
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
  padding: 3.4rem 0 2rem; margin-top: 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.4rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h3 { font-size: .95rem; margin-bottom: .9rem; color: #fff; }
.site-footer p, .site-footer li, .site-footer a { color: #a9bdd1; font-size: .92rem; }
.site-footer ul { list-style: none; }
.site-footer li { padding: .25rem 0; }
.site-footer a:hover { color: #fff; }
.footer-social { display: flex; gap: .65rem; margin-top: .5rem; }
.footer-social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 9px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .12);
  color: #c5d6e8; transition: background .18s ease, color .18s ease, transform .18s ease;
}
.footer-social a:hover { transform: translateY(-2px); }
.footer-social svg { width: 19px; height: 19px; fill: currentColor; }
.footer-social a[aria-label="LinkedIn"] { color: #0a66c2; }
.footer-social a[aria-label="YouTube"] { color: #ff0000; }
.footer-social a[aria-label="Instagram"] { color: #e1306c; }
.footer-social a[aria-label="LinkedIn"]:hover { background: #0a66c2; color: #fff; }
.footer-social a[aria-label="YouTube"]:hover { background: #ff0000; color: #fff; }
.footer-social a[aria-label="Instagram"]:hover {
  background: linear-gradient(45deg, #feda75, #fa7e1e, #d62976, #962fbf, #4f5bd5);
  color: #fff; border-color: transparent;
}
.site-footer .contact-line { display: flex; align-items: flex-start; gap: .55rem; }
.site-footer .contact-line .ci {
  width: 16px; height: 16px; flex: none; margin-top: .2rem; fill: var(--accent-2);
}
.footer-bottom {
  margin-top: 2.6rem; padding-top: 1.4rem; border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .6rem;
  color: #8aa2b8; font-size: .85rem;
}

/* ---------- Floating WhatsApp ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  background: #1faa55; color: #fff;
  box-shadow: 0 8px 26px rgba(31, 170, 85, .45);
  transition: transform .25s;
}
.wa-float:hover { transform: scale(1.12); }
.wa-float svg { width: 30px; height: 30px; fill: #fff; }
.wa-float::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid #25d366; animation: wa-ring 2.2s ease-out infinite;
}
@keyframes wa-ring {
  0% { transform: scale(1); opacity: .8; }
  100% { transform: scale(1.55); opacity: 0; }
}