/* ==========================================================================
   ANANTA WEB TECH -- Design System
   Palette: strict monochrome (black / white / gray). Premium editorial feel
   built from type, contrast and motion rather than colour.
   ========================================================================== */

:root {
  /* Colour tokens */
  --black: #0a0a0a;
  --charcoal: #171717;
  --gray-900: #232323;
  --gray-700: #4a4a4a;
  --gray-500: #8a8a8a;
  --gray-300: #d6d6d3;
  --gray-150: #e7e7e4;
  --gray-100: #ececea;
  --off-white: #f6f6f4;
  --white: #ffffff;

  /* Semantic */
  --bg: var(--white);
  --bg-alt: var(--off-white);
  --ink: var(--black);
  --ink-soft: var(--gray-700);
  --border: var(--gray-300);

  /* Type */
  --font-display: 'Archivo', 'Arial Black', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Scale */
  --fs-hero: clamp(2.8rem, 7vw, 6.6rem);
  --fs-h1: clamp(2.2rem, 4.6vw, 3.6rem);
  --fs-h2: clamp(1.7rem, 3.2vw, 2.6rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.6rem);
  --fs-lead: clamp(1.05rem, 1.6vw, 1.3rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.8rem;

  /* Layout */
  --container: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 2px;
  --dur: 0.5s;
  --ease: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ----------------------------- Reset ------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul[class], ol[class] { list-style: none; margin: 0; padding: 0; }
img, picture { max-width: 100%; display: block; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.05; font-weight: 800; letter-spacing: -0.01em; }

::selection { background: var(--ink); color: var(--white); }

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.section-dark :focus-visible { outline-color: var(--white); }

/* ----------------------------- Layout ------------------------------------ */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(4rem, 9vw, 7.5rem); }
.section-tight { padding-block: clamp(2.5rem, 5vw, 4rem); }
.section-dark { background: var(--black); color: var(--white); }
.section-alt { background: var(--bg-alt); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-500);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.section-dark .eyebrow { color: var(--gray-300); }
.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}

.section-head { max-width: 720px; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-head h2 { margin-top: 0.6em; }
.section-head p { margin-top: 1rem; color: var(--ink-soft); font-size: var(--fs-lead); }
.section-dark .section-head p { color: var(--gray-300); }

.grid { display: grid; gap: var(--gutter); }
.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: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.icon { width: 1em; height: 1em; }

/* ----------------------------- Buttons ------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.95rem 1.7rem;
  border: 1.5px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform 0.25s var(--ease);
  white-space: nowrap;
}
.btn .icon { width: 1.05em; height: 1.05em; transition: transform 0.3s var(--ease); }
.btn:hover { background: transparent; color: var(--ink); transform: translateY(-2px); }
.btn:hover .icon { transform: translate(3px, -3px); }

.btn-outline { background: transparent; color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--white); }

.section-dark .btn { border-color: var(--white); background: var(--white); color: var(--black); }
.section-dark .btn:hover { background: transparent; color: var(--white); }
.section-dark .btn-outline { background: transparent; color: var(--white); }
.section-dark .btn-outline:hover { background: var(--white); color: var(--black); }

.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 0.7rem 1.2rem; font-size: 0.75rem; }

/* ----------------------------- Header ------------------------------------ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: 1.4rem;
  transition: background var(--dur) var(--ease), padding var(--dur) var(--ease), border-color var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(10px);
  padding-block: 0.9rem;
  border-color: rgba(255,255,255,0.1);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }

.brand { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-size: 1.15rem; color: var(--white); letter-spacing: -0.01em; }
.brand img { height: 34px; width: auto; }
.brand .mark { width: 34px; height: 34px; border: 1.5px solid var(--white); border-radius: 50%; display: grid; place-items: center; font-family: var(--font-mono); font-size: 0.85rem; }

.main-nav { display: flex; align-items: center; gap: 2.4rem; }
.main-nav ul { display: flex; gap: 2.2rem; }
.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gray-300);
  position: relative;
  padding-bottom: 4px;
}
.main-nav a::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 1px; background: var(--white);
  transition: width 0.3s var(--ease);
}
.main-nav a:hover, .main-nav a.active { color: var(--white); }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }

.nav-toggle { display: none; background: none; border: none; color: var(--white); width: 40px; height: 40px; align-items: center; justify-content: center; }
.nav-toggle .icon { width: 24px; height: 24px; }

.mobile-nav {
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  width: 100%;
  height: 100vh;
  background: var(--black); color: var(--white);
  z-index: 200;
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform 0.5s var(--ease), visibility 0s linear 0.5s;
  display: flex; flex-direction: column; padding: 1.4rem var(--gutter) 2rem;
  overflow-y: auto;
}
.mobile-nav.is-open { transform: translateY(0); visibility: visible; transition: transform 0.5s var(--ease); }
.mobile-nav-top { display: flex; align-items: center; justify-content: space-between; }
.mobile-nav ul { margin-top: auto; margin-bottom: auto; display: flex; flex-direction: column; gap: 0.3rem; }
.mobile-nav a { font-family: var(--font-display); font-size: clamp(2rem, 9vw, 3rem); font-weight: 800; display: inline-flex; align-items: baseline; gap: 0.8rem; padding-block: 0.35rem; }
.mobile-nav a .num { font-family: var(--font-mono); font-size: 0.9rem; color: var(--gray-500); }
.mobile-nav-foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-family: var(--font-mono); font-size: 0.85rem; color: var(--gray-300); border-top: 1px solid rgba(255,255,255,0.15); padding-top: 1.5rem; }

@media (max-width: 900px) {
  .main-nav ul, .main-nav .btn { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ----------------------------- Hero ------------------------------------ */
.hero {
  background: var(--black);
  color: var(--white);
  padding-top: clamp(8rem, 20vw, 11rem);
  padding-bottom: clamp(3rem, 8vw, 5rem);
  position: relative;
  overflow: hidden;
}
.hero-grid-lines {
  position: absolute; top: 0; right: 0; bottom: 0; left: 0; pointer-events: none; opacity: 0.5;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent);
}
.hero-inner { position: relative; z-index: 1; }
.hero .eyebrow { margin-bottom: 1.6rem; }
.hero h1 {
  font-size: var(--fs-hero);
  max-width: 16ch;
}
.hero h1 em { font-style: normal; color: var(--gray-500); }
.hero-sub { display: flex; gap: clamp(2rem, 6vw, 6rem); margin-top: clamp(2.2rem, 5vw, 3.5rem); flex-wrap: wrap; align-items: flex-end; }
.hero-sub p { max-width: 34ch; color: var(--gray-300); font-size: var(--fs-lead); }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ----------------------------- Marquee ------------------------------------ */
.marquee {
  background: var(--white);
  color: var(--black);
  border-top: 1px solid var(--gray-300);
  border-bottom: 1px solid var(--gray-300);
  overflow: hidden;
  white-space: nowrap;
  padding-block: 1.1rem;
}
.marquee-track { display: inline-flex; animation: marquee 32s linear infinite; }
.marquee-track span {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  padding-inline: 1.6rem;
  display: inline-flex;
  align-items: center;
  gap: 1.6rem;
  text-transform: uppercase;
}
.marquee-track span::after { content: '\2022'; color: var(--gray-300); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ----------------------------- Services (index list) ------------------------------------ */
.service-list { border-top: 1px solid var(--border); }
.service-row {
  display: grid;
  grid-template-columns: 90px 1fr 220px 44px;
  align-items: center;
  gap: 2rem;
  padding-block: 1.9rem;
  border-bottom: 1px solid var(--border);
  transition: background var(--dur) var(--ease);
}
.service-row:hover { background: var(--bg-alt); }
.service-row .num { font-family: var(--font-mono); color: var(--gray-500); font-size: 0.95rem; }
.service-row .title-wrap h3 { font-size: clamp(1.3rem, 2.4vw, 1.9rem); display: flex; align-items: center; gap: 0.9rem; }
.service-row .title-wrap h3 .icon { width: 1.1em; height: 1.1em; color: var(--gray-500); }
.service-row .title-wrap p { color: var(--ink-soft); margin-top: 0.4rem; font-size: 0.95rem; max-width: 46ch; }
.service-row .tag { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-500); justify-self: start; }
.service-row .go { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border); display: grid; place-items: center; transition: all var(--dur) var(--ease); }
.service-row .go .icon { width: 16px; height: 16px; }
.service-row:hover .go { background: var(--ink); color: var(--white); border-color: var(--ink); transform: rotate(45deg); }

@media (max-width: 720px) {
  .service-row { grid-template-columns: 40px 1fr 36px; }
  .service-row .tag { display: none; }
}

/* ----------------------------- Stats ------------------------------------ */
.stats-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,0.15); }
.stat { padding: clamp(2rem, 5vw, 3rem) var(--gutter); border-left: 1px solid rgba(255,255,255,0.15); text-align: left; }
.stat:first-child { border-left: none; }
.stat .num { font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.4rem); display: block; }
.stat .label { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gray-500); margin-top: 0.5rem; display: block; }
@media (max-width: 720px) { .stats-strip { grid-template-columns: repeat(2, 1fr); } .stat:nth-child(3) { border-left: none; } }

/* ----------------------------- Process ------------------------------------ */
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.process-step { background: var(--white); padding: 2.2rem 1.6rem; }
.process-step .num { font-family: var(--font-mono); color: var(--gray-500); font-size: 0.85rem; }
.process-step h3 { font-size: 1.05rem; margin-top: 1.4rem; }
.process-step p { font-size: 0.88rem; color: var(--ink-soft); margin-top: 0.6rem; }
@media (max-width: 980px) { .process-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .process-grid { grid-template-columns: 1fr; } }

/* ----------------------------- Portfolio ------------------------------------ */
.filter-bar { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 2.4rem; }
.filter-btn {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 0.6rem 1.2rem; border: 1px solid var(--border); border-radius: 100px; background: transparent; color: var(--ink-soft);
  transition: all 0.3s var(--ease);
}
.filter-btn.active, .filter-btn:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
@media (max-width: 900px) { .portfolio-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .portfolio-grid { grid-template-columns: 1fr; } }

.work-card { position: relative; overflow: hidden; background: var(--charcoal); aspect-ratio: 4/3; border-radius: var(--radius); }
.work-card .ph {
  position: absolute; top: 0; right: 0; bottom: 0; left: 0; display: grid; place-items: center;
  filter: grayscale(1) contrast(1.05);
  transition: filter 0.6s var(--ease), transform 0.6s var(--ease);
}
.work-card:hover .ph { filter: grayscale(0) contrast(1.05); transform: scale(1.04); }
.work-card .overlay {
  position: absolute; top: 0; right: 0; bottom: 0; left: 0; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 1.4rem; background: linear-gradient(to top, rgba(0,0,0,0.82), rgba(0,0,0,0) 60%);
  color: var(--white);
}
.work-card .overlay .tag { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-300); }
.work-card .overlay h3 { font-size: 1.15rem; margin-top: 0.3rem; }
.work-ph-svg { width: 55%; height: 55%; opacity: 0.9; }

/* ----------------------------- Testimonials ------------------------------------ */
.testimonial-slider { position: relative; max-width: 820px; }
.testimonial-slide { display: none; }
.testimonial-slide.active { display: block; animation: fadeUp 0.6s var(--ease); }
.testimonial-slide .icon.quote { width: 2.6rem; height: 2.6rem; color: var(--gray-500); margin-bottom: 1.4rem; }
.testimonial-slide p.msg { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.3rem, 2.6vw, 1.9rem); line-height: 1.35; }
.testimonial-meta { display: flex; align-items: center; gap: 0.9rem; margin-top: 1.8rem; }
.testimonial-meta .avatar { width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.3); display: grid; place-items: center; font-family: var(--font-mono); font-size: 0.85rem; }
.testimonial-meta .name { font-weight: 600; }
.testimonial-meta .company { font-family: var(--font-mono); font-size: 0.78rem; color: var(--gray-500); }
.testimonial-nav { display: flex; gap: 0.8rem; margin-top: 2.4rem; }
.testimonial-nav button { width: 42px; height: 42px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.3); background: transparent; color: var(--white); display: grid; place-items: center; }
.testimonial-nav button:hover { background: var(--white); color: var(--black); }
.testimonial-nav button .icon { width: 18px; height: 18px; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }

/* ----------------------------- CTA band ------------------------------------ */
.cta-band { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); text-align: center; }
.cta-band h2 { font-size: clamp(2rem, 5vw, 3.6rem); max-width: 18ch; margin-inline: auto; }
.cta-band .btn { margin-top: 2.2rem; }

/* ----------------------------- Footer ------------------------------------ */
.site-footer { background: var(--black); color: var(--gray-300); padding-top: clamp(3.5rem, 8vw, 6rem); }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2.5rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,0.12); }
.footer-brand h3 { color: var(--white); font-size: 1.4rem; }
.footer-brand p { margin-top: 1rem; max-width: 34ch; font-size: 0.92rem; }
.footer-social { display: flex; gap: 0.7rem; margin-top: 1.4rem; }
.footer-social a { width: 38px; height: 38px; border: 1px solid rgba(255,255,255,0.25); border-radius: 50%; display: grid; place-items: center; transition: all 0.3s var(--ease); }
.footer-social a:hover { background: var(--white); color: var(--black); }
.footer-social .icon { width: 16px; height: 16px; }
.footer-col h4 { font-family: var(--font-mono); color: var(--white); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 1.1rem; }
.footer-col ul { display: flex; flex-direction: column; gap: 0.7rem; }
.footer-col a { font-size: 0.92rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--white); }
.footer-contact li { display: flex; gap: 0.7rem; align-items: flex-start; font-size: 0.92rem; }
.footer-contact .icon { width: 16px; height: 16px; margin-top: 0.2rem; flex-shrink: 0; color: var(--gray-500); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-block: 1.6rem; font-size: 0.8rem; flex-wrap: wrap; gap: 0.6rem; }
.footer-bottom a:hover { color: var(--white); }

@media (max-width: 900px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-top { grid-template-columns: 1fr; } }

/* ----------------------------- Page header (inner pages) ------------------------------------ */
.page-hero {
  background: var(--black); color: var(--white);
  padding-top: clamp(7.5rem, 16vw, 9.5rem); padding-bottom: clamp(3rem, 7vw, 4.5rem);
}
.page-hero h1 { font-size: clamp(2.2rem, 5.5vw, 4rem); max-width: 20ch; }
.page-hero .eyebrow { margin-bottom: 1.2rem; }
.breadcrumbs { font-family: var(--font-mono); font-size: 0.78rem; color: var(--gray-500); margin-top: 1.2rem; display: flex; gap: 0.5rem; align-items: center; }
.breadcrumbs a:hover { color: var(--white); }

/* ----------------------------- Cards / generic ------------------------------------ */
.card { border: 1px solid var(--border); padding: 2rem; border-radius: var(--radius); background: var(--white); }
.card-icon { width: 52px; height: 52px; border: 1px solid var(--border); border-radius: 50%; display: grid; place-items: center; margin-bottom: 1.4rem; }
.card-icon .icon { width: 22px; height: 22px; }
.card h3 { font-size: 1.2rem; margin-bottom: 0.7rem; }
.card p { color: var(--ink-soft); font-size: 0.95rem; }

.check-list li { display: flex; gap: 0.8rem; align-items: flex-start; padding-block: 0.55rem; border-bottom: 1px solid var(--border); }
.check-list .icon { width: 18px; height: 18px; margin-top: 0.15rem; flex-shrink: 0; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; } }

.value-card { padding-top: 2rem; border-top: 1px solid var(--border); }
.value-card .num { font-family: var(--font-mono); color: var(--gray-500); }
.value-card h3 { margin-top: 1rem; font-size: 1.25rem; }
.value-card p { margin-top: 0.6rem; color: var(--ink-soft); font-size: 0.95rem; }

/* Abstract signature graphic block (used instead of stock photography) */
.art-block { position: relative; aspect-ratio: 1/1; background: var(--black); border-radius: var(--radius); overflow: hidden; display: grid; place-items: center; }
.art-block svg { width: 78%; height: 78%; }

/* ----------------------------- Forms ------------------------------------ */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 0.5rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--gray-500); }
.field input, .field select, .field textarea {
  border: none; border-bottom: 1.5px solid var(--border); background: transparent;
  padding-block: 0.7rem; font-size: 1rem; color: var(--ink); transition: border-color 0.3s;
}
.field select { cursor: pointer; }
.field select option { background: var(--white); color: var(--ink); }
.section-dark .field select option { background: var(--charcoal); color: var(--white); }
.section-dark .field input, .section-dark .field select, .section-dark .field textarea { border-color: rgba(255,255,255,0.25); color: var(--white); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--ink); outline: none; }
.section-dark .field input:focus, .section-dark .field select:focus, .section-dark .field textarea:focus { border-color: var(--white); }
.field textarea { resize: vertical; min-height: 120px; }
.field-hint { font-size: 0.78rem; color: var(--gray-500); }
.honeypot { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

/* ---------------- Custom dropdown (replaces native <select>) ---------------- */
.custom-select { position: relative; }
.custom-select-trigger {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
  background: transparent; border: none; border-bottom: 1.5px solid var(--border);
  padding-block: 0.7rem; font-size: 1rem; font-family: inherit; color: var(--ink);
  cursor: pointer; text-align: left; transition: border-color 0.3s;
}
.custom-select-trigger .icon { width: 18px; height: 18px; color: var(--gray-500); flex-shrink: 0; transition: transform 0.25s var(--ease); }
.custom-select-trigger[aria-expanded="true"] .icon { transform: rotate(180deg); }
.custom-select-trigger:focus-visible { outline: none; border-color: var(--ink); }
.section-dark .custom-select-trigger { border-color: rgba(255,255,255,0.25); color: var(--white); }
.section-dark .custom-select-trigger:focus-visible { border-color: var(--white); }
.section-dark .custom-select-trigger .icon { color: var(--gray-300); }

.custom-select-list {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; margin: 0; padding: 0.4rem; list-style: none;
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 16px 40px rgba(0,0,0,0.18);
  max-height: 240px; overflow-y: auto; z-index: 50;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
}
.custom-select.is-open .custom-select-list { opacity: 1; visibility: visible; transform: translateY(0); }
.custom-select-list li { padding: 0.6rem 0.9rem; font-size: 0.92rem; color: var(--ink); cursor: pointer; border-radius: 4px; }
.custom-select-list li:hover, .custom-select-list li.is-active { background: var(--bg-alt); }
.custom-select-list li.is-selected { font-weight: 700; }
.section-dark .custom-select-list { background: var(--charcoal); border-color: rgba(255,255,255,0.15); }
.section-dark .custom-select-list li { color: var(--white); }
.section-dark .custom-select-list li:hover, .section-dark .custom-select-list li.is-active { background: rgba(255,255,255,0.1); }

.alert { padding: 1rem 1.2rem; border-radius: var(--radius); font-size: 0.92rem; margin-bottom: 1.6rem; display: flex; gap: 0.7rem; align-items: flex-start; }
.alert-success { background: #eef7ee; border: 1px solid #bfe3bf; color: #1e5f1e; }
.alert-error { background: #fbeaea; border: 1px solid #e8bcbc; color: #7a1f1f; }
.alert .icon { width: 20px; height: 20px; flex-shrink: 0; margin-top: 0.1rem; }

.contact-info-list { display: flex; flex-direction: column; gap: 1.6rem; }
.contact-info-item { display: flex; gap: 1rem; align-items: flex-start; }
.contact-info-item .ic { width: 48px; height: 48px; border: 1px solid rgba(255,255,255,0.25); border-radius: 50%; display: grid; place-items: center; flex-shrink: 0; }
.contact-info-item .ic .icon { width: 20px; height: 20px; }
.contact-info-item h4 { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--gray-500); }
.contact-info-item p, .contact-info-item a { margin-top: 0.3rem; font-size: 1.05rem; }

/* ----------------------------- Reveal animation ------------------------------------ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ----------------------------- Utility ------------------------------------ */
.text-center { text-align: center; }
.mt-lg { margin-top: clamp(2rem, 5vw, 3.5rem); }
.center-head { margin-inline: auto; text-align: center; }
.center-head p { margin-inline: auto; }
.badge {
  display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-mono); font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.06em; border: 1px solid var(--border); border-radius: 100px; padding: 0.4rem 0.9rem; color: var(--ink-soft);
}
.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--white); color: var(--black); padding: 1rem;
  z-index: 999;
}
.skip-link:focus { left: 1rem; top: 1rem; }