/* =============================================================
   Digitic — single-page styles
   mobile-first, no framework, no third-party assets
   ============================================================= */

/* ----- Design tokens ----- */
:root {
  --bg:           #0a0e1a;
  --surface:      #111726;
  --surface-2:    #1a2236;
  --text:         #e8ecf4;
  --muted:        #8a96b0;
  --accent:       #4f8cff;
  --accent-2:     #22d3ee;
  --orange:       #f47b20;
  --border:       rgba(255, 255, 255, 0.08);
  --border-2:     rgba(255, 255, 255, 0.14);

  --radius:       14px;
  --radius-sm:    10px;
  --radius-lg:    22px;

  --shadow-sm:    0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md:    0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg:    0 30px 80px -20px rgba(79, 140, 255, 0.25);

  --container:    1200px;
  --gutter:       clamp(1rem, 3vw, 1.5rem);

  --easing:       cubic-bezier(0.2, 0.7, 0.2, 1);
  --duration:     200ms;

  --font-sans:    ui-sans-serif, system-ui, -apple-system, "Segoe UI",
                  Roboto, "Helvetica Neue", Arial, "Noto Sans",
                  "Liberation Sans", sans-serif;
  --font-mono:    ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ----- Reset / base ----- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--accent-2);
  text-decoration: none;
  transition: color var(--duration) var(--easing);
}
a:hover { color: var(--text); }

button { font: inherit; color: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  z-index: 100;
  transition: top var(--duration) var(--easing);
}
.skip-link:focus { top: 0.75rem; color: #fff; }

/* containers */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--duration) var(--easing),
              background var(--duration) var(--easing),
              border-color var(--duration) var(--easing),
              color var(--duration) var(--easing);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: #6ea0ff; color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-2);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }
.btn-lg { padding: 0.95rem 1.5rem; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ----- Site header ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration) var(--easing);
}
.site-header.is-scrolled { border-bottom-color: var(--border); }

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--text); }
.brand-mark { width: 36px; height: 36px; }
.brand-dot { color: var(--orange); }

.primary-nav {
  margin-left: auto;
}
.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
}
.primary-nav a {
  display: inline-block;
  padding: 0.5rem 0.8rem;
  color: var(--muted);
  font-size: 0.95rem;
  border-radius: 8px;
}
.primary-nav a:hover { color: var(--text); background: rgba(255,255,255,0.04); }

.header-cta { margin-left: 0.75rem; }

/* hamburger */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border-2);
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  padding: 0;
}
.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--duration) var(--easing),
              opacity var(--duration) var(--easing);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* mobile nav */
.mobile-nav {
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.75rem var(--gutter) 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.mobile-nav a {
  display: block;
  padding: 0.85rem 0.25rem;
  color: var(--text);
  font-size: 1.05rem;
  border-bottom: 1px solid var(--border);
}
.mobile-nav a.btn {
  margin-top: 0.75rem;
  border-bottom: none;
  text-align: center;
}

/* ----- Hero ----- */
.hero {
  position: relative;
  padding: clamp(4rem, 10vw, 8rem) 0 clamp(4rem, 8vw, 6rem);
  overflow: hidden;
  isolation: isolate;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(79, 140, 255, 0.15), transparent 60%),
    linear-gradient(180deg, rgba(34, 211, 238, 0.04), transparent 40%),
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: auto, auto, 32px 32px, 32px 32px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 40%, transparent 100%);
}

.eyebrow {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border-2);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 6.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.grad-text {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 50%, var(--orange) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  margin: 1.4rem 0 0;
  max-width: 38rem;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--muted);
  line-height: 1.55;
}

.hero-cta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-strip {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.hero-strip li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.dot-1 { background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.dot-2 { background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); }
.dot-3 { background: var(--orange); box-shadow: 0 0 12px var(--orange); }
.dot-4 { background: #a78bfa; box-shadow: 0 0 12px #a78bfa; }

/* ----- Section base ----- */
.section {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}
.section-alt {
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.02) 50%, transparent);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head {
  max-width: 44rem;
  margin: 0 auto 3rem;
  text-align: center;
}
.section-head h2,
.two-col h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.lede {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* about two-col */
.two-col {
  display: grid;
  gap: 2rem;
}
.two-col p { margin: 0 0 1rem; color: var(--muted); }
.two-col p:last-child { margin-bottom: 0; }

/* stats */
.stats {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.stats li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.stat-num {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}
.stat-label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

/* value grid */
.value-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
.value-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform var(--duration) var(--easing),
              border-color var(--duration) var(--easing),
              background var(--duration) var(--easing);
}
.value-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-2);
  background: var(--surface-2);
}
.value-icon {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(79, 140, 255, 0.12);
  color: var(--accent);
  margin-bottom: 0.85rem;
}
.value-icon svg { width: 22px; height: 22px; }
.value-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 600;
}
.value-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.55;
}

/* solutions */
.solution-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
.solution-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  overflow: hidden;
  isolation: isolate;
}
.solution-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(79,140,255,0.5), transparent 40%);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--duration) var(--easing);
  z-index: -1;
}
.solution-card:hover::before { opacity: 1; }
.solution-icon {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(140deg, rgba(79,140,255,0.18), rgba(34,211,238,0.12));
  color: var(--accent-2);
  margin-bottom: 1.1rem;
}
.solution-icon img { width: 28px; height: 28px; filter: invert(1) brightness(1.5); }
.solution-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.solution-card p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.solution-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.9rem;
  color: var(--text);
}
.solution-list li {
  position: relative;
  padding-left: 1.4rem;
}
.solution-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

/* testimonials */
.testimonial-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
.testimonial {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
}
.testimonial::before {
  content: "\201C";
  position: absolute;
  top: -0.4rem;
  left: 1rem;
  font-size: 4rem;
  font-family: Georgia, serif;
  color: var(--accent);
  opacity: 0.35;
  line-height: 1;
}
.testimonial blockquote {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
}
.testimonial footer {
  font-size: 0.85rem;
  color: var(--muted);
}
.testimonial cite {
  font-style: normal;
  color: var(--text);
  font-weight: 600;
}
.role { display: inline; }

/* career */
.career-list {
  list-style: none;
  margin: 1.25rem 0 1.5rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.career-list li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.career-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* contact */
.contact-section { padding-bottom: clamp(4rem, 10vw, 7rem); }
.contact-card {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  background: linear-gradient(160deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1.5rem, 4vw, 3rem);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 0% 0%, rgba(79,140,255,0.18), transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(34,211,238,0.12), transparent 50%);
  pointer-events: none;
}
.contact-card > * { position: relative; }
.contact-card h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
.contact-meta {
  margin: 1.5rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

/* footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
  background: rgba(0,0,0,0.2);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--text);
}
.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
}
.footer-nav a {
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-nav a:hover { color: var(--text); }
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.footer-meta p { margin: 0; }

/* ----- Reveal animations ----- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms var(--easing), transform 600ms var(--easing);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ----- Responsive breakpoints ----- */
@media (min-width: 640px) {
  .value-grid  { grid-template-columns: repeat(2, 1fr); }
  .stats       { grid-template-columns: repeat(4, 1fr); }
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid > .testimonial:last-child { grid-column: span 2; }
}

@media (min-width: 768px) {
  .two-col     { grid-template-columns: 1fr 1.4fr; gap: 3rem; align-items: start; }
  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .footer-meta { text-align: right; }
}

@media (min-width: 1024px) {
  .value-grid  { grid-template-columns: repeat(3, 1fr); }
  .solution-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: repeat(3, 1fr); }
  .testimonial-grid > .testimonial:last-child { grid-column: auto; }
  .footer-nav ul { gap: 0.5rem 1.75rem; }
}

/* mobile-only hamburger */
@media (max-width: 1023.98px) {
  .primary-nav,
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }
}