/* ─── DESIGN TOKENS ─── */
:root {
  --color-bg:              #ffffff;
  --color-surface:         #f8f9fb;
  --color-surface-2:       #f2f5f9;
  --color-surface-offset:  #e8edf5;
  --color-divider:         #dde3ed;
  --color-border:          oklch(0.55 0.05 230 / 0.14);

  --color-text:            #0f1923;
  --color-text-muted:      #4a5668;
  --color-text-faint:      #8a96a8;
  --color-text-inverse:    #ffffff;

  /* Navy + electric blue — logo palette */
  --color-primary:         #1A2B4A;
  --color-primary-hover:   #142240;
  --color-accent:          #00A8E8;
  --color-accent-hover:    #0090c8;
  --color-accent-highlight: #e0f4fd;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px oklch(0.2 0.05 220 / 0.08);
  --shadow-md: 0 4px 16px oklch(0.2 0.05 220 / 0.10);
  --shadow-lg: 0 12px 40px oklch(0.2 0.05 220 / 0.14);

  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body:    'Satoshi', 'Inter', sans-serif;

  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem;
  --space-4: 1rem;   --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem;   --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;  --space-20: 5rem;   --space-24: 6rem;

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

  --color-bg:              #0d1219;
  --color-surface:         #121820;
  --color-surface-2:       #171f2a;
  --color-surface-offset:  #1e2736;
  --color-divider:         #243044;
  --color-border:          oklch(0.8 0.05 220 / 0.10);
  --color-text:            #dce4f0;
  --color-text-muted:      #7a8ea8;
  --color-text-faint:      #475a74;
  --color-text-inverse:    #0d1219;
  --color-primary:         #d4e0f4;
  --color-primary-hover:   #e8f0fa;
  --color-accent:          #00c2ff;
  --color-accent-hover:    #33ceff;
  --color-accent-highlight: #0a2030;
  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45);
}

/* ─── BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
}
img, svg { display: block; max-width: 100%; }
ul[role="list"] { list-style: none; }
h1,h2,h3,h4 { text-wrap: balance; line-height: 1.15; }
p, li { text-wrap: pretty; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: var(--radius-sm); }
::selection { background: oklch(from var(--color-accent) l c h / 0.18); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ─── LAYOUT ─── */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-12));
}
.container--narrow { max-width: var(--content-default); }

/* ─── SKIP LINK ─── */
.skip-link {
  position: absolute; top: var(--space-2); left: var(--space-2);
  background: var(--color-accent); color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-md);
  font-size: var(--text-sm); font-weight: 600;
  transform: translateY(-200%); z-index: 200;
  transition: transform var(--transition);
}
.skip-link:focus { transform: translateY(0); }

/* ─── HEADER / NAV ─── */
.header {
  position: sticky; top: 0; z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.header--scrolled { box-shadow: var(--shadow-sm); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: var(--space-4);
  gap: var(--space-6);
}
.logo {
  display: flex; align-items: center;
  flex-shrink: 0; line-height: 1; text-decoration: none;
}
.logo--full svg  { width: 240px; height: auto; display: block; }
.logo--footer svg { width: 180px; height: auto; display: block; }

.nav-links {
  display: flex; align-items: center; gap: var(--space-8);
  list-style: none;
}
.nav-links a {
  font-size: var(--text-sm); font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-accent); }

.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 600;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent); color: #fff;
}
.btn-primary:hover { background: var(--color-accent-hover); box-shadow: var(--shadow-sm); }
.btn-outline {
  border: 1.5px solid var(--color-border);
  color: var(--color-text-muted);
}
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: var(--space-2); }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none; flex-direction: column;
  padding: var(--space-4) var(--space-6) var(--space-6);
  gap: var(--space-4);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: var(--text-base); font-weight: 500; color: var(--color-text-muted); padding-block: var(--space-2); }
.mobile-menu a:hover { color: var(--color-accent); }

/* ─── HERO ─── */
.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-24));
  background: var(--color-bg);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute;
  top: -60%; right: -10%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, oklch(from var(--color-accent) l c h / 0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.hero-eyebrow::before {
  content: ''; display: block; width: 20px; height: 2px;
  background: var(--color-accent); border-radius: 2px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800; letter-spacing: -0.03em;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  line-height: 1.05;
}
.hero h1 span { color: var(--color-accent); }
.hero-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted); max-width: 52ch;
  margin-bottom: var(--space-8); line-height: 1.7;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.hero-cta { padding: var(--space-3) var(--space-8); font-size: var(--text-base); }

.hero-visual {
  position: relative; display: flex; justify-content: center; align-items: center;
}
.hero-diagram {
  width: 100%; max-width: 440px;
  aspect-ratio: 1;
  position: relative;
}

/* ─── STATS BAR ─── */
.stats {
  background: var(--color-surface);
  padding-block: var(--space-8);
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6); text-align: center;
}
.stat-value {
  font-family: var(--font-display); font-size: var(--text-xl);
  font-weight: 800; color: #fff; letter-spacing: -0.02em;
  line-height: 1;
}
.stat-value span { color: var(--color-accent); }
.stat-label {
  font-size: var(--text-xs); color: oklch(0.9 0.02 220);
  margin-top: var(--space-2); letter-spacing: 0.04em; text-transform: uppercase;
}

/* ─── SECTION HEADING ─── */
.section { padding-block: clamp(var(--space-12), 8vw, var(--space-24)); }
.section-label {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.section-label::before {
  content: ''; display: block; width: 16px; height: 2px;
  background: var(--color-accent); border-radius: 2px;
}
.section-title {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 800; letter-spacing: -0.02em; color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.section-desc {
  font-size: var(--text-base); color: var(--color-text-muted);
  max-width: 58ch; line-height: 1.7;
}

/* ─── SERVICES ─── */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6); margin-top: var(--space-10);
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); padding: var(--space-8);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-md); border-color: oklch(from var(--color-accent) l c h / 0.4);
  transform: translateY(-2px);
}
.service-icon {
  width: 48px; height: 48px; margin-bottom: var(--space-5);
  color: var(--color-accent);
}
.service-title {
  font-family: var(--font-display); font-size: var(--text-lg);
  font-weight: 700; color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.service-desc {
  font-size: var(--text-sm); color: var(--color-text-muted);
  line-height: 1.7;
}
.service-list {
  margin-top: var(--space-4); list-style: none;
  display: flex; flex-direction: column; gap: var(--space-2);
}
.service-list li {
  font-size: var(--text-xs); color: var(--color-text-muted);
  display: flex; align-items: center; gap: var(--space-2);
}
.service-list li::before {
  content: ''; display: block; width: 5px; height: 5px;
  background: var(--color-accent); border-radius: 50%; flex-shrink: 0;
}

/* ─── HOW WE WORK (Process) ─── */
.process { background: var(--color-surface); }
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6); margin-top: var(--space-10);
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute; top: 28px; left: calc(12.5% + var(--space-6));
  width: calc(75% - var(--space-12));
  height: 1px; background: var(--color-divider);
}
.step { position: relative; }
.step-num {
  width: 56px; height: 56px; border-radius: var(--radius-full);
  background: var(--color-bg);
  border: 2px solid var(--color-divider);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: var(--text-base);
  font-weight: 800; color: var(--color-accent);
  margin-bottom: var(--space-5); position: relative; z-index: 1;
}
.step-title {
  font-family: var(--font-display); font-size: var(--text-base);
  font-weight: 700; color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.step-desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }

/* ─── ABOUT (Split) ─── */
.about-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-8), 6vw, var(--space-20)); align-items: center;
}
.about-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); overflow: hidden;
  aspect-ratio: 4/3;
  display: flex; align-items: center; justify-content: center;
}
.about-checklist { list-style: none; margin-top: var(--space-8); display: flex; flex-direction: column; gap: var(--space-4); }
.about-checklist li {
  display: flex; gap: var(--space-3); align-items: flex-start;
  font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6;
}
.check-icon {
  flex-shrink: 0; width: 20px; height: 20px;
  background: var(--color-accent-highlight);
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}

/* ─── CONTACT ─── */
.contact { background: var(--color-primary); }
.contact .section-title, .contact .section-desc, .contact .section-label { color: rgba(255,255,255,0.9); }
.contact .section-label::before { background: var(--color-accent); }

.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-8), 5vw, var(--space-20)); align-items: start;
  margin-top: var(--space-10);
}
.contact-info { color: rgba(255,255,255,0.85); }
.contact-info-item {
  display: flex; align-items: flex-start; gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.contact-info-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--color-surface-offset); border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent);
}
.contact-info-label { font-size: var(--text-xs); opacity: 0.6; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: var(--space-1); }
.contact-info-value { font-size: var(--text-sm); font-weight: 500; }

/* ─── FOOTER ─── */
.footer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: var(--space-4);
}
.footer-copy { font-size: var(--text-xs); color: var(--color-text-faint); }
.footer-links { display: flex; gap: var(--space-6); }
.footer-links a { font-size: var(--text-xs); color: var(--color-text-faint); transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent); }

/* ─── DIVIDER ─── */
.divider { border: none; border-top: 1px solid var(--color-divider); margin: 0; }

/* ─── SCROLL REVEAL ─── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1); }
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .process-steps::before { display: none; }
  .hero-inner, .about-inner, .contact-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .hero-diagram { max-width: 320px; margin-inline: auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-actions .btn-outline { display: none; }
}
@media (max-width: 560px) {
  .services-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}