/* ==========================================================================
   Arktosys — main.css
   Design system: Arctic / glacial aesthetic
   Dark backgrounds · cold palette · Syne headings · DM Sans body
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. CSS Custom Properties — Design System
   -------------------------------------------------------------------------- */
:root {
  /* Color — backgrounds */
  --color-bg:        #080c18;
  --color-bg-2:      #0d1226;
  --color-surface:   #111827;
  --color-surface-2: #172034;
  --color-border:    #1e2d4a;
  --color-border-2:  #243350;

  /* Color — text */
  --color-text:      #f0f9ff;
  --color-text-2:    #94a3b8;
  --color-text-3:    #64748b;

  /* Color — accent (cold teal / aurora) */
  --color-accent:       #2dd4bf;
  --color-accent-light: #5eead4;
  --color-accent-dim:   rgba(45, 212, 191, 0.12);
  --color-accent-glow:  rgba(45, 212, 191, 0.25);

  /* Color — ice blue */
  --color-ice:     #bae6fd;
  --color-ice-dim: rgba(186, 230, 253, 0.08);

  /* Color — semantic */
  --color-success: #34d399;
  --color-error:   #f87171;

  /* Typography */
  --font-heading: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  /* Type scale — fluid */
  --text-xs:   clamp(0.70rem,  1.2vw,  0.8125rem);
  --text-sm:   clamp(0.875rem, 1.4vw,  0.9375rem);
  --text-base: clamp(1rem,     1.5vw,  1.0625rem);
  --text-lg:   clamp(1.125rem, 1.8vw,  1.25rem);
  --text-xl:   clamp(1.25rem,  2.2vw,  1.5rem);
  --text-2xl:  clamp(1.5rem,   3vw,    2rem);
  --text-3xl:  clamp(2rem,     4vw,    3rem);
  --text-4xl:  clamp(2.75rem,  5.5vw,  4.5rem);
  --text-hero: clamp(3.5rem,   8vw,    7.5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --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;
  --space-32: 8rem;

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(1.25rem, 4vw, 2.5rem);

  /* Borders & radii */
  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  /* Transitions */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:    cubic-bezier(0.7, 0, 0.84, 0);
  --transition: 220ms var(--ease-out);

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow:     0 4px 20px rgba(0,0,0,0.5);
  --shadow-lg:  0 12px 48px rgba(0,0,0,0.6);
  --shadow-accent: 0 0 30px var(--color-accent-glow);

  /* Nav height */
  --nav-h: 72px;
}

/* --------------------------------------------------------------------------
   1. Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); line-height: 1.1; font-weight: 700; letter-spacing: -0.02em; }

/* Focus styles — accessibility */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   2. Layout Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.section--dark {
  background-color: var(--color-bg-2);
}

.section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section-heading {
  font-size: var(--text-3xl);
  color: var(--color-text);
  margin-bottom: var(--space-6);
  max-width: 22ch;
}

.section-sub {
  font-size: var(--text-lg);
  color: var(--color-text-2);
  max-width: 58ch;
  margin-bottom: var(--space-12);
  line-height: 1.65;
}

.body-text {
  font-size: var(--text-base);
  color: var(--color-text-2);
  line-height: 1.75;
  max-width: 62ch;
}

.body-text + .body-text { margin-top: var(--space-4); }

/* --------------------------------------------------------------------------
   3. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75em 1.6em;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition);
}

.btn:hover::after { background: rgba(255,255,255,0.05); }

.btn-primary {
  background: var(--color-accent);
  color: #080c18;
  font-weight: 600;
  box-shadow: 0 0 20px var(--color-accent-glow);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  box-shadow: 0 0 32px var(--color-accent-glow);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-2);
}

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent-dim);
  box-shadow: var(--shadow-accent);
}

.btn-sm {
  padding: 0.55em 1.2em;
  font-size: var(--text-xs);
  letter-spacing: 0.03em;
}

.btn-lg {
  padding: 0.9em 2.2em;
  font-size: var(--text-base);
}

.btn-full { width: 100%; }

/* --------------------------------------------------------------------------
   4. Navigation
   -------------------------------------------------------------------------- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.site-nav.scrolled {
  background: rgba(8, 12, 24, 0.88);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: var(--space-8);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  transition: opacity var(--transition);
  flex-shrink: 0;
}

.nav-logo:hover { opacity: 0.85; }

.logo-mark {
  font-size: 0.85em;
  color: var(--color-accent);
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-left: auto;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-text-2);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 2px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta { margin-left: var(--space-4); }

/* Burger */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  margin-left: var(--space-4);
}

.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-8) var(--container-pad);
  border-top: 1px solid var(--color-border);
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}

.mobile-menu.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-link {
  display: block;
  padding: var(--space-4) 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-2);
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition);
}

.mobile-link:hover { color: var(--color-text); }
.mobile-cta { margin-top: var(--space-8); }

/* --------------------------------------------------------------------------
   5. Flash Messages
   -------------------------------------------------------------------------- */
.flash-container {
  position: fixed;
  top: calc(var(--nav-h) + var(--space-4));
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: min(calc(100vw - 3rem), 480px);
}

.flash {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: flash-in 300ms var(--ease-out);
}

@keyframes flash-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.flash--success {
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: var(--color-success);
}

.flash--error {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: var(--color-error);
}

.flash-dismiss {
  color: currentColor;
  opacity: 0.6;
  font-size: var(--text-xs);
  flex-shrink: 0;
  transition: opacity var(--transition);
}

.flash-dismiss:hover { opacity: 1; }

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

/* Background layers */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* Aurora animated gradient */
.hero-aurora {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(45, 212, 191, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(186, 230, 253, 0.06) 0%, transparent 55%),
    radial-gradient(ellipse 50% 60% at 60% 80%, rgba(45, 212, 191, 0.04) 0%, transparent 50%);
  animation: aurora-shift 18s ease-in-out infinite alternate;
}

@keyframes aurora-shift {
  0%   {
    background:
      radial-gradient(ellipse 80% 50% at 20% 40%, rgba(45, 212, 191, 0.08) 0%, transparent 60%),
      radial-gradient(ellipse 60% 40% at 80% 20%, rgba(186, 230, 253, 0.06) 0%, transparent 55%),
      radial-gradient(ellipse 50% 60% at 60% 80%, rgba(45, 212, 191, 0.04) 0%, transparent 50%);
  }
  50% {
    background:
      radial-gradient(ellipse 70% 60% at 40% 50%, rgba(45, 212, 191, 0.07) 0%, transparent 65%),
      radial-gradient(ellipse 80% 45% at 70% 30%, rgba(186, 230, 253, 0.05) 0%, transparent 60%),
      radial-gradient(ellipse 60% 50% at 30% 70%, rgba(45, 212, 191, 0.06) 0%, transparent 55%);
  }
  100% {
    background:
      radial-gradient(ellipse 90% 55% at 60% 35%, rgba(45, 212, 191, 0.06) 0%, transparent 60%),
      radial-gradient(ellipse 50% 50% at 25% 60%, rgba(186, 230, 253, 0.07) 0%, transparent 50%),
      radial-gradient(ellipse 70% 65% at 75% 75%, rgba(45, 212, 191, 0.05) 0%, transparent 55%);
  }
}

/* Mountain ridge SVG line */
.hero-ridge {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 45%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 300' preserveAspectRatio='none'%3E%3Cpath d='M0,300 L0,200 L80,160 L160,210 L240,140 L340,80 L420,120 L500,60 L580,100 L660,40 L740,90 L820,30 L900,70 L980,10 L1060,50 L1140,20 L1220,60 L1300,30 L1380,55 L1440,25 L1440,300 Z' fill='rgba(13,18,38,0.6)'/%3E%3Cpath d='M0,300 L0,240 L100,220 L200,250 L300,195 L400,160 L480,180 L560,145 L640,170 L720,120 L800,155 L880,100 L960,140 L1040,90 L1120,125 L1200,85 L1280,115 L1360,95 L1440,110 L1440,300 Z' fill='rgba(8,12,24,0.4)'/%3E%3C/svg%3E");
  background-size: cover;
  background-position: bottom;
  background-repeat: no-repeat;
  opacity: 0.7;
}

/* Noise texture */
.hero-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  background-repeat: repeat;
  pointer-events: none;
  mix-blend-mode: overlay;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-12);
  padding-block: var(--space-20);
  width: 100%;
}

.hero-content {
  max-width: 680px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.hero-headline {
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hero-br { display: block; }

.hero-subhead {
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--color-text-2);
  line-height: 1.6;
  max-width: 52ch;
  margin-bottom: var(--space-10);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Hero badge */
.hero-badge {
  flex-shrink: 0;
}

.badge-ring {
  width: clamp(120px, 14vw, 180px);
  height: clamp(120px, 14vw, 180px);
  border-radius: 50%;
  border: 1px solid var(--color-border-2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  animation: badge-rotate 20s linear infinite;
}

.badge-ring::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    transparent 0%,
    var(--color-accent) 15%,
    transparent 30%
  );
  opacity: 0.5;
  animation: badge-rotate 8s linear infinite;
}

@keyframes badge-rotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.badge-inner {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: center;
  color: var(--color-text-2);
  line-height: 1.3;
  animation: badge-rotate 20s linear infinite reverse;
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  margin: 0 auto;
  animation: scroll-pulse 2.5s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(0.7); }
}

/* --------------------------------------------------------------------------
   7. Reveal Animations (Intersection Observer)
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 100ms; }
.reveal--delay-2 { transition-delay: 200ms; }
.reveal--delay-3 { transition-delay: 300ms; }
.reveal--delay-4 { transition-delay: 400ms; }

/* --------------------------------------------------------------------------
   8. Pillars (Why Arktosys)
   -------------------------------------------------------------------------- */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.pillar-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 40px var(--color-accent-dim);
  transform: translateY(-3px);
}

.pillar-icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.pillar-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.pillar-text {
  font-size: var(--text-sm);
  color: var(--color-text-2);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   9. Services Strip
   -------------------------------------------------------------------------- */
.strip-grid {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-12);
}

.strip-item {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-2);
  transition: color var(--transition), padding-left var(--transition);
}

.strip-item:hover {
  color: var(--color-text);
  padding-left: var(--space-4);
}

.strip-item:hover .strip-arrow { color: var(--color-accent); }

.strip-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-3);
}

.strip-name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
}

.strip-arrow {
  font-size: var(--text-lg);
  transition: color var(--transition), transform var(--transition);
}

.strip-item:hover .strip-arrow { transform: translateX(4px); }

.strip-footer {
  margin-top: var(--space-10);
  display: flex;
  justify-content: flex-end;
}

/* --------------------------------------------------------------------------
   10. Testimonials
   -------------------------------------------------------------------------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition);
}

.testimonial-card:hover { border-color: var(--color-border-2); }

.testimonial-quote {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.7;
  font-style: italic;
  flex: 1;
  margin-bottom: var(--space-6);
  position: relative;
}

.testimonial-quote::before {
  content: '\201C';
  font-family: var(--font-heading);
  font-size: 4rem;
  line-height: 0.8;
  color: var(--color-accent);
  opacity: 0.4;
  display: block;
  margin-bottom: var(--space-3);
}

.testimonial-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.testimonial-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
}

.testimonial-name {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  font-style: normal;
}

.testimonial-role {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-3);
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   11. CTA Band
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative;
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  overflow: hidden;
  text-align: center;
}

.cta-band-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 80% at 50% 50%, rgba(45, 212, 191, 0.06) 0%, transparent 70%),
    var(--color-bg-2);
  z-index: 0;
}

.cta-band-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='600' height='200' viewBox='0 0 600 200'%3E%3Cpath d='M0,200 L0,160 L50,140 L100,155 L150,120 L200,100 L250,115 L300,80 L350,100 L400,70 L450,90 L500,60 L550,75 L600,50 L600,200 Z' fill='rgba(45,212,191,0.03)'/%3E%3C/svg%3E") center bottom / cover no-repeat;
}

.cta-band-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.cta-band-heading {
  font-size: var(--text-3xl);
  color: var(--color-text);
  max-width: 20ch;
}

.cta-band-sub {
  font-size: var(--text-lg);
  color: var(--color-text-2);
  max-width: 52ch;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   12. Page Hero (inner pages)
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  padding-top: calc(var(--nav-h) + clamp(var(--space-16), 8vw, var(--space-24)));
  padding-bottom: clamp(var(--space-16), 8vw, var(--space-24));
  overflow: hidden;
}

.page-hero--short {
  padding-top: calc(var(--nav-h) + var(--space-16));
  padding-bottom: var(--space-16);
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 30% 50%, rgba(45, 212, 191, 0.06) 0%, transparent 65%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-2) 100%);
  z-index: 0;
}

.page-hero-inner {
  position: relative;
  z-index: 1;
}

.page-hero-heading {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
  line-height: 1.0;
  margin-bottom: var(--space-6);
  max-width: 18ch;
}

.page-hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-2);
  max-width: 56ch;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   13. Platform Overview (Services page)
   -------------------------------------------------------------------------- */
.platform-overview-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-20));
  align-items: center;
}

.platform-text .section-heading { margin-bottom: var(--space-6); }

/* Dashboard Mockup */
.dashboard-mockup {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.dash-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
}

.dash-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  opacity: 0.7;
}

.dash-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-3);
  margin-left: var(--space-3);
}

.dash-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.dash-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.dash-stat {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
}

.dash-stat-val {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.dash-stat-val--accent { color: var(--color-accent); }

.dash-stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-3);
  margin-top: var(--space-1);
  font-family: var(--font-mono);
}

.dash-chart {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-5);
}

.dash-bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 64px;
  margin-bottom: var(--space-3);
}

.dash-bar-chart span {
  flex: 1;
  background: linear-gradient(to top, var(--color-accent), rgba(45, 212, 191, 0.3));
  border-radius: 2px 2px 0 0;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.dash-bar-chart span:hover { opacity: 1; }

.dash-chart-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-3);
  display: block;
}

.dash-status-row {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.dash-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-3);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 8px var(--color-success);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* --------------------------------------------------------------------------
   14. Service Cards (Services page)
   -------------------------------------------------------------------------- */
.service-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 50px var(--color-accent-dim);
  transform: translateY(-2px);
}

.service-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.service-icon {
  width: 42px;
  height: 42px;
  color: var(--color-accent);
}

.service-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border: 1px solid rgba(45, 212, 191, 0.2);
  padding: 0.2em 0.7em;
  border-radius: var(--radius-sm);
}

.service-card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.service-card-text {
  font-size: var(--text-sm);
  color: var(--color-text-2);
  line-height: 1.7;
  flex: 1;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.service-list li {
  font-size: var(--text-sm);
  color: var(--color-text-3);
  padding-left: var(--space-5);
  position: relative;
}

.service-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 0.75em;
}

/* --------------------------------------------------------------------------
   15. About — Mission, Values, Team
   -------------------------------------------------------------------------- */
.mission-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-20));
  align-items: start;
}

.mission-text .section-label  { margin-bottom: var(--space-4); }
.mission-text .section-heading { margin-bottom: var(--space-8); }

.mission-values {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  padding-top: var(--space-12);
}

.value-item {
  display: flex;
  gap: var(--space-5);
  align-items: flex-start;
}

.value-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  padding-top: 3px;
  flex-shrink: 0;
}

.value-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.value-text {
  font-size: var(--text-sm);
  color: var(--color-text-2);
  line-height: 1.65;
}

/* Built for section */
.built-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.built-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition);
}

.built-card:hover { border-color: var(--color-border-2); }

.built-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.built-card-text {
  font-size: var(--text-sm);
  color: var(--color-text-2);
  line-height: 1.7;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition), transform var(--transition);
}

.team-card:hover {
  border-color: var(--color-border-2);
  transform: translateY(-2px);
}

.team-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.team-avatar span {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-accent);
}

.team-name {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.team-role {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.team-bio {
  font-size: var(--text-sm);
  color: var(--color-text-2);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   16. Contact Page
   -------------------------------------------------------------------------- */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: clamp(var(--space-12), 6vw, var(--space-20));
  align-items: start;
}

.contact-form-heading {
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.field-group--halves {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-2);
  letter-spacing: 0.01em;
}

.field-input {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75em 1em;
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.field-input::placeholder { color: var(--color-text-3); }

.field-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.field-textarea {
  resize: vertical;
  min-height: 150px;
}

.field--error .field-input {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.12);
}

.field-errors {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.field-errors li {
  font-size: var(--text-xs);
  color: var(--color-error);
  font-family: var(--font-mono);
}

/* Contact sidebar */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  position: sticky;
  top: calc(var(--nav-h) + var(--space-8));
}

.contact-info-block {
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.contact-info-block:last-child { border-bottom: none; }

.contact-info-heading {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  font-family: var(--font-heading);
}

.contact-info-link {
  font-size: var(--text-base);
  color: var(--color-accent);
  transition: color var(--transition);
  display: block;
  margin-bottom: var(--space-2);
}

.contact-info-link:hover { color: var(--color-accent-light); }

.contact-info-text {
  font-size: var(--text-base);
  color: var(--color-text);
}

.contact-info-note {
  font-size: var(--text-sm);
  color: var(--color-text-3);
  margin-top: var(--space-2);
}

.contact-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-2);
}

.contact-steps li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-2);
  line-height: 1.5;
}

.step-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border: 1px solid rgba(45, 212, 191, 0.2);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

/* --------------------------------------------------------------------------
   17. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  padding-top: clamp(var(--space-12), 6vw, var(--space-20));
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-16);
  padding-bottom: var(--space-12);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo { margin-bottom: var(--space-4); }

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-3);
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  gap: clamp(var(--space-10), 4vw, var(--space-16));
}

.footer-col { min-width: 140px; }

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-5);
  letter-spacing: 0.02em;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-3);
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--color-text); }

.footer-location {
  font-size: var(--text-sm);
  color: var(--color-text-3);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-legal {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-3);
}

/* --------------------------------------------------------------------------
   18. Responsive — Tablet & Mobile
   -------------------------------------------------------------------------- */

/* ── 1024px — hide nav links, show burger ── */
@media (max-width: 1024px) {
  .nav-links,
  .nav-cta { display: none; }

  .nav-burger {
    display: flex;
  }

  .mobile-menu {
    display: block;
  }

  .hero-badge { display: none; }

  .platform-overview-inner {
    grid-template-columns: 1fr;
  }

  .mission-inner {
    grid-template-columns: 1fr;
  }

  .mission-values { padding-top: 0; }

  .contact-inner {
    grid-template-columns: 1fr;
  }

  .contact-info {
    position: static;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
}

/* ── 768px ── */
@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .strip-item {
    grid-template-columns: 2.5rem 1fr auto;
    gap: var(--space-4);
  }

  .strip-name { font-size: var(--text-lg); }

  .field-group--halves {
    grid-template-columns: 1fr;
  }

  .footer-nav {
    flex-direction: column;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .service-cards {
    grid-template-columns: 1fr;
  }
}

/* ── 480px ── */
@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn-full-mobile {
    width: 100%;
  }

  .pillars-grid,
  .testimonials-grid,
  .team-grid,
  .built-grid {
    grid-template-columns: 1fr;
  }

  .dash-row {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
  }

  .dash-stat {
    padding: var(--space-3);
  }
}