/* ==========================================================================
   Axion IT Services Inc. — Design System
   Ink navy + cobalt accent, Space Grotesk / Inter type pairing.
   ========================================================================== */

:root {
  /* Color */
  --ink: #171321;
  --ink-soft: #241d38;
  --paper: #f6f4f8;
  --paper-alt: #ffffff;
  --accent: #7c3aed;
  --accent-dim: #efe7fd;
  --signal: #f5a623;
  --slate: #5b5566;
  --slate-light: #8b8494;
  --line: #e6e1ec;
  --line-dark: #362a52;

  /* Type */
  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Scale */
  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.1rem);
  --step-1: clamp(1.2rem, 1.1rem + 0.4vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.3rem + 0.8vw, 1.9rem);
  --step-3: clamp(1.9rem, 1.6rem + 1.4vw, 2.6rem);
  --step-4: clamp(2.4rem, 1.9rem + 2.2vw, 3.6rem);
  --step-5: clamp(3rem, 2.2rem + 3.6vw, 5rem);

  --radius: 4px;
  --container: 1180px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.12; margin: 0 0 0.5em; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0 0 1em; color: var(--slate); max-width: 62ch; }
button { font-family: inherit; cursor: pointer; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

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

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section--tight { padding: 64px 0; }
.section--dark { background: var(--ink); color: #fff; }
.section--dark p { color: #aab3c5; }
.section--alt { background: var(--paper-alt); }

/* Signature angled divider — the one bold structural device */
.divider {
  height: 64px;
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  margin-top: -1px;
}
.divider--to-dark { background: var(--ink); }
.divider--to-paper { background: var(--paper); }
.divider--to-alt { background: var(--paper-alt); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--step--1);
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 14px;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}
.section--dark .eyebrow { color: var(--signal); border-color: var(--signal); }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-size: var(--step-3); }
.section-head--wide { max-width: 760px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--step--1);
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #6425cc; }
.btn-outline { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.section--dark .btn-outline { border-color: #33405f; color: #fff; }
.section--dark .btn-outline:hover { border-color: var(--signal); color: var(--signal); }
.btn-block { width: 100%; justify-content: center; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 245, 247, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-logo { height: 34px; width: auto; display: block; }
.brand-mark {
  width: 30px; height: 30px;
  background: var(--accent);
  border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1rem; font-weight: 700;
}
.main-nav { display: flex; align-items: center; gap: 36px; }
.main-nav ul { display: flex; gap: 30px; align-items: center; }
.main-nav a:not(.btn) {
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--ink);
  position: relative;
  padding: 6px 0;
}
.main-nav a:not(.btn)::after {
  content: '';
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px; background: var(--accent);
  transition: width 0.2s ease;
}
.main-nav a:not(.btn):hover::after { width: 100%; }

.nav-item-dropdown { position: relative; }
.nav-item-dropdown > a { display: flex; align-items: center; gap: 5px; }
.nav-item-dropdown > a::before {
  content: '';
  width: 7px; height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  margin-top: -3px;
  transition: transform 0.2s ease;
  opacity: 0.65;
}
.nav-item-dropdown:hover > a::before,
.nav-item-dropdown.is-open > a::before { transform: rotate(225deg); margin-top: 3px; }
.nav-dropdown {
  position: absolute; top: calc(100% + 14px); left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  width: 480px; max-width: 90vw;
  padding: 18px;
  box-shadow: 0 18px 40px rgba(23,19,33,0.14);
  opacity: 0; visibility: hidden;
  transition: opacity 0.18s ease, transform 0.18s ease;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px 18px;
  z-index: 50;
}
.nav-dropdown::before {
  content: '';
  position: absolute; top: -6px; left: 50%; transform: translateX(-50%) rotate(45deg);
  width: 12px; height: 12px; background: #fff;
  border-left: 1px solid var(--line); border-top: 1px solid var(--line);
}
.nav-item-dropdown:hover .nav-dropdown,
.nav-item-dropdown:focus-within .nav-dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-dropdown a {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 12px; border-radius: 5px; font-size: 0.88rem; font-weight: 500;
  line-height: 1.3;
}
.nav-dropdown a::after { display: none; }
.nav-dropdown a::before {
  content: '';
  width: 6px; height: 6px; flex-shrink: 0; border-radius: 50%;
  background: var(--accent-dim);
  transition: background 0.15s ease;
}
.nav-dropdown a:hover { background: var(--paper); color: var(--accent); }
.nav-dropdown a:hover::before { background: var(--accent); }

.mobile-toggle { display: none; background: none; border: none; padding: 8px; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: 0.2s; }

@media (max-width: 900px) {
  .main-nav { position: fixed; top: 76px; left: 0; right: 0; bottom: 0;
    background: var(--paper-alt); flex-direction: column; align-items: stretch;
    padding: 24px; overflow-y: auto; transform: translateX(100%);
    transition: transform 0.25s ease; }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .main-nav ul li a:not(.btn) { display: flex; padding: 16px 4px; border-bottom: 1px solid var(--line); min-height: 24px; }
  .nav-item-dropdown > a { justify-content: space-between; }
  .nav-item-dropdown > a::before { margin-top: 0; transform: rotate(45deg); }
  .nav-item-dropdown.is-open > a::before { transform: rotate(225deg); }
  .nav-dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; display: none; width: auto; max-width: none;
    grid-template-columns: 1fr; padding: 4px 0 8px 12px; gap: 0;
  }
  .nav-dropdown::before { display: none; }
  .nav-dropdown a { padding: 13px 12px; border-bottom: none; }
  .nav-item-dropdown.is-open .nav-dropdown { display: grid; }
  .main-nav .btn { margin-top: 16px; }
  .mobile-toggle { display: block; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  background: var(--ink);
  color: #fff;
  padding: 88px 0 110px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.hero .badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: var(--step--1); color: var(--signal); font-weight: 600;
  margin-bottom: 20px; padding-left: 12px; border-left: 3px solid var(--signal);
}
.hero h1 { font-size: var(--step-5); color: #fff; max-width: 12ch; }
.hero p.lead { color: #b7bfd0; font-size: var(--step-1); max-width: 46ch; margin: 20px 0 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-dark);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { aspect-ratio: 16/10; }
  .hero h1 { max-width: none; }
}

/* ==========================================================================
   Cards & Grids (deliberately NOT uniform shadow-card kit)
   ========================================================================== */
.grid { display: grid; gap: 28px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; } }

.service-card {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  padding: 32px 28px;
  border-radius: var(--radius);
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.service-card:hover { transform: translateY(-4px); }
.service-icon {
  width: 44px; height: 44px; border-radius: 8px;
  background: var(--accent-dim); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; margin-bottom: 20px;
}
.service-card h3 { font-size: var(--step-1); margin-bottom: 10px; }
.service-card .service-link { color: var(--accent); font-weight: 600; font-size: var(--step--1); display: inline-block; margin-top: 12px; }

.feature-row { display: flex; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.feature-row:last-child { border-bottom: none; }
.feature-num { font-family: var(--font-display); font-size: var(--step-2); color: var(--accent); min-width: 48px; }

.process-step { position: relative; padding-left: 56px; padding-bottom: 40px; border-left: 1px solid var(--line-dark); margin-left: 20px; }
.process-step:last-child { border-left-color: transparent; padding-bottom: 0; }
.process-step .num {
  position: absolute; left: -20px; top: 0;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 0.95rem;
}
.process-step h4 { font-size: var(--step-1); margin-bottom: 6px; }

.stat-block { text-align: left; }
.stat-block .num { font-family: var(--font-display); font-size: var(--step-4); color: #fff; }
.stat-block .label { color: #aab3c5; font-size: var(--step--1); }

.testimonial-card { background: var(--paper-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.testimonial-card .quote { font-size: var(--step-1); color: var(--ink); font-family: var(--font-display); font-weight: 500; margin-bottom: 20px; }
.testimonial-person { display: flex; align-items: center; gap: 12px; }
.testimonial-person img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.testimonial-person .name { font-weight: 600; font-size: 0.92rem; }
.testimonial-person .role { color: var(--slate-light); font-size: 0.85rem; }

.faq-item { border-bottom: 1px solid var(--line); padding: 22px 0; }
.faq-item summary { font-family: var(--font-display); font-weight: 600; font-size: var(--step-0); cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; color: var(--accent); transition: transform 0.2s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .answer { margin-top: 14px; }

.portfolio-card { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/3; }
.portfolio-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.portfolio-card:hover img { transform: scale(1.05); }
.portfolio-card .overlay { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(13,19,33,0.85), rgba(13,19,33,0) 55%); display: flex; flex-direction: column; justify-content: flex-end; padding: 22px; color: #fff; }
.portfolio-card .cat { font-size: 0.78rem; color: var(--signal); font-weight: 600; margin-bottom: 4px; }
.portfolio-card h3 { font-size: 1.1rem; color: #fff; margin: 0; }

.cta-band { background: var(--accent); color: #fff; border-radius: var(--radius); padding: 56px; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; font-size: var(--step-2); max-width: 18ch; margin: 0; }
.cta-band .btn-primary { background: #fff; color: var(--accent); }
.cta-band .btn-primary:hover { background: var(--ink); color: #fff; }

.industry-tag { border: 1px solid var(--line); border-radius: 999px; padding: 10px 20px; font-size: 0.9rem; font-weight: 500; }
.industry-tags { display: flex; flex-wrap: wrap; gap: 12px; }

/* Portfolio gallery wall — true masonry via CSS columns, image-first */
.gallery-wall {
  column-count: 4; column-gap: 16px;
}
.gallery-tile {
  display: block; break-inside: avoid; margin-bottom: 16px;
  position: relative; border-radius: 6px; overflow: hidden;
  background: var(--ink);
}
.gallery-tile img { width: 100%; height: auto; display: block; transition: transform 0.35s ease, opacity 0.2s ease; }
.gallery-tile:hover img { transform: scale(1.04); opacity: 0.85; }
.gallery-tile-label {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 10px 12px 8px;
  background: linear-gradient(0deg, rgba(23,19,33,0.88), rgba(23,19,33,0));
  color: #fff; font-size: 0.78rem; font-weight: 600;
  opacity: 0; transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.gallery-tile:hover .gallery-tile-label { opacity: 1; transform: translateY(0); }
@media (max-width: 1100px) { .gallery-wall { column-count: 3; } }
@media (max-width: 768px) { .gallery-wall { column-count: 2; } }
@media (max-width: 480px) { .gallery-wall { column-count: 1; } }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--ink); color: #aab3c5; padding: 72px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 56px; }
.footer-grid h4 { color: #fff; font-size: var(--step--1); text-transform: none; margin-bottom: 18px; }
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid a { font-size: 0.92rem; }
.footer-grid a:hover { color: var(--signal); }
.footer-brand .brand { color: #fff; margin-bottom: 14px; }
.footer-social { display: flex; gap: 14px; margin-top: 18px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; border: 1px solid #362a52; display: flex; align-items: center; justify-content: center; }
.footer-social a:hover { border-color: var(--signal); color: var(--signal); }
.footer-bottom { border-top: 1px solid #362a52; padding-top: 24px; display: flex; justify-content: space-between; font-size: 0.85rem; flex-wrap: wrap; gap: 12px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Forms
   ========================================================================== */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 13px 14px; border: 1px solid var(--line);
  border-radius: var(--radius); font-family: inherit; font-size: 0.95rem;
  background: #fff; color: var(--ink);
}
.form-control:focus { border-color: var(--accent); }
textarea.form-control { min-height: 120px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 620px) { .form-row { grid-template-columns: 1fr; } }
.alert { padding: 14px 18px; border-radius: var(--radius); margin-bottom: 20px; font-size: 0.92rem; }
.alert-success { background: #e5f9f6; color: #036b5c; border: 1px solid #b6ebe1; }
.alert-error { background: #fdecec; color: #a3231c; border: 1px solid #f6c6c4; }

/* Breadcrumb */
.breadcrumb { font-size: 0.85rem; color: var(--slate-light); margin-bottom: 24px; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 8px; }

/* Page header (service/portfolio detail pages) */
.page-hero { background: var(--ink); color: #fff; padding: 64px 0 88px; }
.page-hero h1 { color: #fff; font-size: var(--step-4); max-width: 20ch; }
.page-hero p { color: #b7bfd0; max-width: 60ch; }

/* Utility */
.text-center { text-align: center; margin-left: auto; margin-right: auto; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }