/* ==========================================================================
   DMC Labs — design tokens
   Deliberate single (dark) theme.
   ========================================================================== */

:root {
  color-scheme: dark;

  --bg-void: #0a0d12;
  --bg-panel: #131720;
  --bg-raised: #171c26;

  --ink: #edf0f5;
  --ink-muted: #8d97a6;
  --ink-faint: #545f6f;

  --accent: #2f6dff;
  --accent-2: #00c2ff;
  --accent-ink: #ffffff;

  --line: rgba(237, 240, 245, 0.08);
  --line-strong: rgba(237, 240, 245, 0.16);

  --font-display: 'Syne', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --font-body: 'Manrope', sans-serif;

  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: clamp(1.75rem, 2.6vw, 2.1rem);
  --text-hero: clamp(2.75rem, 6.2vw, 5rem);

  --content-width: 1140px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-pill: 999px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; scrollbar-color: var(--ink-faint) var(--bg-void); }

body {
  margin: 0;
  background: var(--bg-void);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p { margin: 0; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */

.wrap { max-width: var(--content-width); margin-inline: auto; padding-inline: var(--gutter); }

.section { padding-block: clamp(3.5rem, 7vw, 6rem); border-bottom: 1px solid var(--line); }

.section-head { margin-bottom: clamp(2rem, 4vw, 3rem); max-width: 640px; }

.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.section-sub { margin-top: 0.6rem; color: var(--ink-muted); font-size: var(--text-lg); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 0.85rem 1.65rem;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: var(--accent-ink); }
.btn-primary:hover { box-shadow: 0 12px 28px -10px rgba(0, 194, 255, 0.5); transform: translateY(-1px); }

.btn-ghost { border: 1px solid var(--line-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }

.btn-sm { padding: 0.5rem 1.05rem; font-size: 0.8rem; }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 13, 18, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.05rem;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.logo { display: inline-flex; align-items: center; gap: 0.75rem; }
.logo-img { height: 52px; width: auto; display: block; }
.logo-text { font-family: var(--font-display); font-weight: 800; font-size: 1.4rem; letter-spacing: -0.02em; color: var(--ink); }

/* ==========================================================================
   Eyebrow tag
   ========================================================================== */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(47, 109, 255, 0.3);
  background: rgba(47, 109, 255, 0.08);
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  flex-shrink: 0;
}

/* ==========================================================================
   Subtle grid background
   ========================================================================== */

.grid-bg { position: relative; }

.grid-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(237, 240, 245, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 70% 65% at 50% 0%, black, transparent 78%);
  pointer-events: none;
}

.nav { display: flex; align-items: center; gap: clamp(1.25rem, 2.5vw, 2rem); }
.nav a:not(.btn) { font-size: var(--text-sm); color: var(--ink-muted); transition: color 0.2s var(--ease); }
.nav a:not(.btn):hover { color: var(--ink); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 0.5rem; }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: ""; width: 20px; height: 1.5px; background: var(--ink);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--bg-panel); border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height 0.3s var(--ease);
  }
  .nav.is-open { max-height: 320px; }
  .nav a:not(.btn) { width: 100%; padding: 1rem var(--gutter); border-bottom: 1px solid var(--line); }
  .nav .btn { margin: 1rem var(--gutter); }
  .nav-toggle.is-open span { opacity: 0; }
  .nav-toggle.is-open::before { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.is-open::after { transform: translateY(-6.5px) rotate(-45deg); }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero { position: relative; padding-block: clamp(4.5rem, 11vw, 7.5rem) clamp(3rem, 7vw, 5rem); overflow: hidden; }

.hero-glow {
  position: absolute;
  width: 560px; height: 560px;
  top: -220px; right: -160px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.2;
  pointer-events: none;
}

.hero-chart {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, transparent 30%, black 62%, black 100%);
  mask-image: linear-gradient(to right, transparent 0%, transparent 30%, black 62%, black 100%);
}

.hero-chart .chart-area {
  opacity: 0;
  animation: fade-area 1.2s var(--ease) 1.6s forwards;
}

.hero-chart .chart-line {
  fill: none;
  stroke: var(--accent-2);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.4;
  stroke-dasharray: 1800;
  stroke-dashoffset: 1800;
  animation: draw-chart 2.4s var(--ease) 0.3s forwards;
}

.hero-chart .chart-point {
  fill: var(--accent-2);
  opacity: 0;
  animation: fade-point 0.6s var(--ease) 2.6s forwards;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--bg-void) 0%, var(--bg-void) 38%, transparent 72%);
  pointer-events: none;
}

@keyframes fade-point {
  to { opacity: 0.6; }
}

@keyframes draw-chart {
  to { stroke-dashoffset: 0; }
}

@keyframes fade-area {
  to { opacity: 1; }
}

.hero-inner { position: relative; margin-inline: 0; }
.hero-inner > * { max-width: 720px; }

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub { margin-top: 1.25rem; font-size: var(--text-xl); color: var(--ink-muted); font-weight: 500; max-width: 30ch; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.25rem; }

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */

.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Shared tile component (guarantees)
   ========================================================================== */

.tile {
  background: transparent;
  border: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: transform 0.2s var(--ease);
}

.tile:hover { transform: translateY(-2px); }

.tile-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(47, 109, 255, 0.14);
  color: var(--accent);
}

.tile-icon svg { width: 20px; height: 20px; }

.tile h3, .tile h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tile p { color: var(--ink-muted); font-size: 0.9rem; line-height: 1.5; }

/* ==========================================================================
   Guarantees
   ========================================================================== */

.guarantee-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2.5rem; }

/* ==========================================================================
   Case studies page
   ========================================================================== */

.cs-hero { padding-block: clamp(3.5rem, 8vw, 6rem) clamp(1rem, 3vw, 2rem); }

.cs-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.cs-hero-sub { margin-top: 0.75rem; font-size: var(--text-xl); color: var(--ink-muted); max-width: 46ch; }

.company-block { padding-block: clamp(2.75rem, 6vw, 4.5rem); border-bottom: 1px solid var(--line); }
.company-block:last-of-type { border-bottom: none; }

.company-head { margin-bottom: clamp(1.75rem, 4vw, 2.5rem); max-width: 640px; }

.company-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.company-head p { margin-top: 0.5rem; color: var(--ink-muted); font-size: var(--text-lg); }

.project-grid { display: flex; flex-direction: column; gap: 1.5rem; }

.project-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.project-card:hover { border-color: rgba(47, 109, 255, 0.35); transform: translateY(-2px); }

.project-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(47, 109, 255, 0.14);
  color: var(--accent);
}

.project-icon svg { width: 26px; height: 26px; }

.project-card h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; }
.project-card p { color: var(--ink-muted); font-size: 0.95rem; line-height: 1.65; }

.project-title { display: flex; flex-direction: column; gap: 0.4rem; }

.project-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
}

.feature-list { display: flex; flex-direction: column; gap: 0.55rem; }

.feature-list li {
  font-size: 0.95rem;
  color: var(--ink-muted);
  line-height: 1.6;
  padding-left: 1.15rem;
  position: relative;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-2);
}

.feature-list li strong { color: var(--ink); font-weight: 600; }

.feature-list--wide {
  columns: 2 300px;
  column-gap: 2.5rem;
}

.feature-list--wide li {
  break-inside: avoid;
  margin-bottom: 0.55rem;
}

.feature-subgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.75rem;
  margin-top: 0.25rem;
}

.feature-sub h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 0.65rem;
}

/* ==========================================================================
   Testimonials
   ========================================================================== */

.testimonial-grid { display: flex; flex-direction: column; gap: 1.5rem; }

.testimonial-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: clamp(1.6rem, 3vw, 2.1rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.quote-icon { width: 32px; height: 32px; color: var(--accent); }
.quote-icon svg { width: 100%; height: 100%; }

.testimonial-card blockquote { margin: 0; font-size: var(--text-lg); line-height: 1.55; color: var(--ink); }

.testimonial-attr { display: flex; flex-direction: column; gap: 0.15rem; padding-top: 1.1rem; border-top: 1px solid var(--line); }
.testimonial-attr .company { font-size: var(--text-sm); font-weight: 600; color: var(--ink); }
.testimonial-attr .person { font-size: 0.8rem; color: var(--ink-faint); }

/* ==========================================================================
   Contact
   ========================================================================== */

.contact { padding-block: clamp(3.5rem, 8vw, 6rem); border-bottom: none; }
.contact-inner { display: flex; flex-direction: column; align-items: flex-start; gap: 1.5rem; max-width: 640px; }

.contact h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.contact-sub { color: var(--ink-muted); font-size: var(--text-lg); }
.contact-email { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--ink-faint); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  width: 100%;
  max-width: 480px;
  margin-top: 0.25rem;
}

.form-field { display: flex; flex-direction: column; gap: 0.4rem; }

.form-field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.form-field input,
.form-field textarea {
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.2s var(--ease);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent-2);
}

.form-status {
  font-size: 0.85rem;
  color: var(--ink-muted);
  min-height: 1.2em;
}

.form-status.is-success { color: var(--accent-2); }
.form-status.is-error { color: #ff6b6b; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer { padding-block: 1.75rem; }

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
}

.footer-inner nav { display: flex; gap: 1.25rem; }
.footer-inner nav a:hover { color: var(--ink-muted); }