/* ============================================================
   THALATTA LABS — styles.css
   Premium defense AI startup website
   ============================================================ */

/* ──────────────────────────────────────────────────────────
   1. CUSTOM PROPERTIES (Design Tokens)
   ────────────────────────────────────────────────────────── */
:root {
  /* Color palette */
  --color-bg:             #061319;
  --color-bg-deep:        #050f14;
  --color-panel:          #0a1c24;
  --color-panel-2:        #0d222c;
  --color-text:           #f4f7f8;
  --color-text-muted:     #9fb3bf;
  --color-text-faint:     #5c7a89;
  --color-accent:         #4db6d8;
  --color-accent-deep:    #1e6f91;
  --color-accent-subtle:  rgba(77, 182, 216, 0.12);
  --color-accent-mid:     rgba(77, 182, 216, 0.22);
  --color-border:         rgba(77, 182, 216, 0.16);
  --color-border-hover:   rgba(77, 182, 216, 0.38);

  /* Typography */
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Fira Code", Consolas, monospace;

  /* Spacing scale */
  --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;

  /* Border radius */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  14px;
  --radius-xl:  20px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:  cubic-bezier(0.45, 0, 0.55, 1);
  --duration-fast: 160ms;
  --duration-base: 260ms;
  --duration-slow: 480ms;

  /* Layout */
  --container-max: 1160px;
  --nav-height:    68px;
}

/* ──────────────────────────────────────────────────────────
   2. RESET & BASE
   ────────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
}

/* ──────────────────────────────────────────────────────────
   3. TYPOGRAPHY UTILITIES
   ────────────────────────────────────────────────────────── */

/* Micro label — uppercase, spaced, muted cyan */
.label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0.85;
  margin-bottom: var(--space-4);
}

/* Section headings */
.section__heading {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  max-width: 22ch;
}

.section__body {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 56ch;
}

/* ──────────────────────────────────────────────────────────
   4. LAYOUT — CONTAINER & SECTION
   ────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-8);
}

.section {
  padding-block: var(--space-32);
}

.section__intro {
  margin-bottom: var(--space-16);
}

/* Alternating subtle dark panels */
.problem,
.validation,
.applications {
  background-color: var(--color-panel);
}

.outputs,
.integration {
  background-color: var(--color-bg-deep);
}

.capabilities {
  background-color: var(--color-bg);
}

.platform {
  background-color: var(--color-panel-2);
}

.team {
  background-color: var(--color-bg);
}

/* ──────────────────────────────────────────────────────────
   5. NAVIGATION
   ────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(6, 19, 25, 0.75);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out);
}

/* Scrolled state — slightly more opaque */
.nav.nav--scrolled {
  background: rgba(6, 19, 25, 0.92);
  border-color: var(--color-border-hover);
}

.nav__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-8);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.nav__logo-mark {
  flex-shrink: 0;
}

.nav__logo-text {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--color-text);
  white-space: nowrap;
}

/* Desktop nav links */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 450;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
  outline-offset: 3px;
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

/* CTA nav link */
.nav__link--cta {
  margin-left: var(--space-2);
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-5);
}

.nav__link--cta:hover,
.nav__link--cta:focus-visible {
  color: var(--color-text);
  background: var(--color-accent-subtle);
  border-color: var(--color-border-hover);
}

/* Active nav link state */
.nav__link.active {
  color: var(--color-text);
}

/* Hamburger button */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast);
  flex-shrink: 0;
  outline-offset: 3px;
}

.nav__hamburger:hover {
  background: rgba(255, 255, 255, 0.06);
}

.nav__hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-base) var(--ease-out),
              width var(--duration-base) var(--ease-out);
}

.nav__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  width: 0;
}
.nav__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile menu drawer */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(6, 19, 25, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6) var(--space-8) var(--space-8);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}

.nav__mobile[aria-hidden="false"] {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

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

.nav__mobile-link {
  display: block;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
  outline-offset: 3px;
}

.nav__mobile-link:hover,
.nav__mobile-link:focus-visible {
  color: var(--color-text);
  background: rgba(255,255,255,0.04);
}

/* ──────────────────────────────────────────────────────────
   6. BUTTONS
   ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: all var(--duration-base) var(--ease-out);
  outline-offset: 4px;
  cursor: pointer;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, #4db6d8 0%, #3aa8cc 100%);
  color: #051217;
  border: 1px solid rgba(77,182,216,0.4);
  box-shadow: 0 2px 12px rgba(77, 182, 216, 0.18);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: linear-gradient(135deg, #63c4e0 0%, #4db6d8 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(77, 182, 216, 0.28);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(77, 182, 216, 0.15);
}

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

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--color-accent-subtle);
  border-color: var(--color-border-hover);
  color: var(--color-accent);
  transform: translateY(-1px);
}

/* ──────────────────────────────────────────────────────────
   7. HERO
   ────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  /* Use block layout — the hero__grid handles internal centering */
  display: block;
  min-height: 100svh;
  padding-top: var(--nav-height);
  overflow: hidden;
  background: var(--color-bg);
}

/* Subtle radial vignette anchored to the right/visual side */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 70% 80% at 80% 50%,
    rgba(30, 111, 145, 0.14) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

/* Thin cyan hairline at the bottom of the hero */
.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--color-accent) 30%,
    var(--color-accent) 70%,
    transparent 100%
  );
  opacity: 0.2;
  z-index: 1;
}

/* ── TWO-COLUMN GRID WRAPPER ─────────────────────────────── */
.hero__grid {
  display: grid;
  /* Text column slightly wider; visual column slightly narrower for better balance */
  grid-template-columns: minmax(0, 1.12fr) minmax(380px, 0.88fr);
  column-gap: clamp(48px, 5vw, 84px);
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-8);
  align-items: center;
  position: relative;
  z-index: 1;
  /* Fill the full hero height so content stays vertically centred */
  min-height: calc(100svh - var(--nav-height));
}

/* ── LEFT COLUMN: copy ───────────────────────────────────── */
.hero__content {
  /* Tighter vertical padding — ensures chips clear the fold at 1440×900 */
  padding-block: clamp(4rem, 9vh, 6.5rem);
  padding-right: clamp(var(--space-8), 4vw, 72px);
}

/* ── RIGHT COLUMN: visual ────────────────────────────────── */
.hero__visual {
  /* Normal flow — contained entirely in the right grid cell */
  display: flex;
  align-items: center;
  /* Centre within column: sits slightly left of the hard right edge */
  justify-content: center;
  padding-block: var(--space-12);
  pointer-events: none;
  overflow: hidden;
  clip-path: inset(0);
  /* Lifted opacity — ambient but readable */
  opacity: 0.95;
}

.hero__svg {
  width: 100%;
  height: auto;
  /* Slightly smaller cap so the visual doesn’t dominate the column */
  max-height: 480px;
  display: block;
}

/* Scanline animation */
.hero__scanline {
  animation: scanline 7s ease-in-out infinite;
}

@keyframes scanline {
  0%   { transform: translateY(-170px); opacity: 0; }
  8%   { opacity: 0.9; }
  92%  { opacity: 0.4; }
  100% { transform: translateY(320px); opacity: 0; }
}

/* ── HERO TYPOGRAPHY ────────────────────────────────────── */
.hero__label {
  opacity: 0;
  transform: translateY(10px);
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.15s forwards;
}

.hero__heading {
  font-size: clamp(2.6rem, 4.2vw, 3.9rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--color-text);
  /* Narrower max-width matches the 3-line controlled break */
  max-width: 620px;
  margin-bottom: var(--space-8);
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.3s forwards;
}

/* Desktop: each span on its own line for intentional typographic control */
.hero__line {
  display: block;
}

.hero__sub {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  color: var(--color-text-muted);
  line-height: 1.72;
  max-width: 760px;
  margin-bottom: var(--space-6);
  opacity: 0;
  transform: translateY(12px);
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.45s forwards;
}

.hero__support {
  font-size: 0.9375rem;
  color: var(--color-text-faint);
  line-height: 1.68;
  max-width: 620px;
  /* Reduced from space-12 — tighter stack keeps chips above fold */
  margin-bottom: var(--space-8);
  opacity: 0;
  transform: translateY(10px);
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.58s forwards;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  /* Slightly tighter — compresses the stack above chips */
  margin-bottom: var(--space-8);
  opacity: 0;
  transform: translateY(8px);
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.7s forwards;
}

.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  opacity: 0;
  transform: translateY(6px);
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.85s forwards;
}

.chip {
  display: inline-flex;
  align-items: center;
  font-size: 0.6875rem;
  font-weight: 600;
  /* Slightly tighter letter-spacing — less shouting */
  letter-spacing: 0.055em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  /* Slimmer vertically — less bulky in the composition */
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

/* ──────────────────────────────────────────────────────────
   8. CARDS (generic)
   ────────────────────────────────────────────────────────── */
.cards {
  display: grid;
  gap: var(--space-5);
}

.cards--3 {
  grid-template-columns: repeat(3, 1fr);
}

.cards--2 {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: var(--color-panel-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8);
  transition: border-color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}

.card:hover {
  border-color: var(--color-border-hover);
  background: rgba(13, 34, 44, 0.95);
  transform: translateY(-2px);
}

.card__icon {
  margin-bottom: var(--space-6);
  color: var(--color-accent);
}

.card__icon--lg svg {
  width: 36px;
  height: 36px;
}

.card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.card__body {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  overflow-wrap: break-word;
}

/* Output card extras */
.card--output {
  position: relative;
  overflow: hidden;
}

.card__num {
  font-size: 0.6875rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.card__tags li {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border: 1px solid rgba(77, 182, 216, 0.18);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
}

/* Integration card */
.card--integration {
  background: rgba(10, 28, 36, 0.7);
}

/* ──────────────────────────────────────────────────────────
   9. WORKFLOW
   ────────────────────────────────────────────────────────── */
.workflow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: var(--space-16);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  /* Hide scrollbar but allow scroll */
  scrollbar-width: none;
}
.workflow::-webkit-scrollbar { display: none; }

.workflow__item {
  flex: 1;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(10, 28, 36, 0.5);
  cursor: default;
  transition: border-color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out);
  outline-offset: 3px;
  position: relative;
}

.workflow__item:hover,
.workflow__item:focus-visible {
  border-color: var(--color-border-hover);
  background: rgba(77, 182, 216, 0.06);
}

.workflow__item:hover .workflow__detail,
.workflow__item:focus-visible .workflow__detail {
  max-height: 120px;
  opacity: 1;
  margin-top: var(--space-4);
}

.workflow__item:hover .workflow__node,
.workflow__item:focus-visible .workflow__node {
  color: var(--color-accent);
}

.workflow__node {
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
  transition: color var(--duration-base) var(--ease-out);
}

.workflow__num {
  font-size: 0.625rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.15em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
  display: block;
}

.workflow__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

.workflow__detail {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--duration-slow) var(--ease-out),
              opacity var(--duration-slow) var(--ease-out),
              margin-top var(--duration-slow) var(--ease-out);
}

.workflow__arrow {
  flex-shrink: 0;
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-border), var(--color-border-hover));
  margin-top: 60px;
  position: relative;
}

.workflow__arrow::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -3px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--color-accent-deep);
  border-top: 1.5px solid var(--color-accent-deep);
  transform: rotate(45deg);
}

/* Value pillars */
.value-pillars {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6) var(--space-12);
}

.value-pillar {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.value-pillar__accent {
  color: var(--color-accent);
  font-size: 1.25rem;
  line-height: 1;
}

/* ──────────────────────────────────────────────────────────
   10. CAPABILITIES GRID
   ────────────────────────────────────────────────────────── */
.capabilities__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-1);
}

.cap {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-8) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: border-color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out);
}

.cap:hover {
  border-color: var(--color-border);
  background: var(--color-accent-subtle);
}

.cap__mark {
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 2px;
}

.cap__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  font-weight: 400;
}

/* ──────────────────────────────────────────────────────────
   11. METRICS / VALIDATION
   ────────────────────────────────────────────────────────── */
.metrics {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.metric {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-8) var(--space-6);
  background: var(--color-panel-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  gap: var(--space-2);
  transition: border-color var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}

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

.metric__num {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.metric__unit {
  font-size: 0.6em;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.metric__label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.45;
  font-weight: 400;
}

/* Validation callout */
.validation__callout {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-8);
  background: rgba(30, 111, 145, 0.08);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent-deep);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 780px;
}

.validation__callout-mark {
  flex-shrink: 0;
  margin-top: 2px;
}

.validation__callout p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  font-style: italic;
}

/* ──────────────────────────────────────────────────────────
   12. APPLICATIONS GRID
   ────────────────────────────────────────────────────────── */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.app-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-10) var(--space-8);
  background: var(--color-panel-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  gap: var(--space-4);
  transition: border-color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}

.app-card:hover {
  border-color: var(--color-border-hover);
  background: rgba(13, 34, 44, 0.95);
  transform: translateY(-3px);
}

.app-card__icon {
  color: var(--color-accent);
}

.app-card__title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

.app-card__body {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ──────────────────────────────────────────────────────────
   13. TEAM
   ────────────────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.team-card {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-8);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}

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

.team-card__avatar {
  flex-shrink: 0;
  position: relative;
  width: 52px;
  height: 52px;
}

.team-card__initials {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(77, 182, 216, 0.12);
  border: 1px solid var(--color-border);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.team-card__avatar-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  animation: ringPulse 4s ease-in-out infinite;
}

@keyframes ringPulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%       { opacity: 0.1; transform: scale(1.08); }
}

.team-card__info {
  flex: 1;
  min-width: 0;
}

.team-card__name {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.team-card__role {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.team-card__bio {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ──────────────────────────────────────────────────────────
   14. CONTACT
   ────────────────────────────────────────────────────────── */
.contact {
  background: var(--color-panel);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 80% at 50% 100%,
    rgba(30, 111, 145, 0.10) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.contact__inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.contact__heading {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.contact__body {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-10);
  max-width: min(52ch, 100%);
}

.contact__details {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-5);
}

.contact__btn {
  font-size: 0.9375rem;
  letter-spacing: 0.005em;
}

.contact__location {
  font-size: 0.875rem;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}

/* ──────────────────────────────────────────────────────────
   15. FOOTER
   ────────────────────────────────────────────────────────── */
.footer {
  background: var(--color-bg-deep);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-12) var(--space-8);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

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

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.footer__wordmark {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text);
  text-transform: uppercase;
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--color-text-faint);
  padding-left: calc(24px + var(--space-3));
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-6);
  justify-content: flex-end;
  max-width: 560px;
}

.footer__link {
  font-size: 0.875rem;
  color: var(--color-text-faint);
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out);
  outline-offset: 3px;
}

.footer__link:hover,
.footer__link:focus-visible {
  color: var(--color-text);
}

.footer__bottom {
  border-top: 1px solid rgba(77, 182, 216, 0.08);
  padding-top: var(--space-6);
}

.footer__copy {
  font-size: 0.8125rem;
  color: var(--color-text-faint);
}

/* ──────────────────────────────────────────────────────────
   16. SCROLL REVEAL ANIMATION
   ────────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* Stagger children when parent has .reveal--stagger */
.cards.reveal--stagger .card,
.metrics.reveal--stagger .metric,
.team-grid.reveal--stagger .team-card {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

/* ──────────────────────────────────────────────────────────
   17. ANIMATIONS
   ────────────────────────────────────────────────────────── */
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ──────────────────────────────────────────────────────────
   18. FOCUS STYLES (keyboard nav)
   ────────────────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ──────────────────────────────────────────────────────────
   19. REDUCED MOTION
   ────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero__label,
  .hero__heading,
  .hero__sub,
  .hero__support,
  .hero__ctas,
  .hero__chips {
    opacity: 1;
    transform: none;
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ──────────────────────────────────────────────────────────
   20. RESPONSIVE — TABLET (≤ 1024px)
   ────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__mobile {
    display: block;
  }

  .cards--3,
  .cards--2 {
    grid-template-columns: 1fr 1fr;
  }

  .capabilities__grid {
    grid-template-columns: 1fr 1fr;
  }

  .metrics {
    grid-template-columns: repeat(3, 1fr);
  }

  .app-grid {
    grid-template-columns: 1fr 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr 1fr;
  }

  .workflow {
    gap: var(--space-2);
  }

  .workflow__arrow {
    width: 16px;
    margin-top: 52px;
  }
}

/* ──────────────────────────────────────────────────────────
   20b. HERO GRID COLLAPSE (≤ 860px)
   At this width the right column’s min-width of 420px would cause overflow;
   switch to a single column — copy on top, visual below.
   ────────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .hero__grid {
    grid-template-columns: 1fr;
    padding-inline: var(--space-8);
    column-gap: 0;
  }

  .hero__content {
    padding-right: 0;
    padding-top: clamp(4rem, 10vh, 6rem);
    padding-bottom: var(--space-8);
  }

  /* Spans become inline so the heading wraps naturally */
  .hero__line {
    display: inline;
  }

  /* Visual drops below copy, slightly shorter */
  .hero__visual {
    justify-content: center;
    padding-block: 0;
    padding-bottom: var(--space-10);
    max-height: 340px;
    overflow: hidden;
    opacity: 0.75;
  }

  .hero__svg {
    max-height: 340px;
  }

  /* Metrics: 3-col at this width, 5-col is too cramped */
  .metrics {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Workflow items: allow shrinking below 160px to avoid overflow */
  .workflow__item {
    min-width: 0;
  }
}

/* ──────────────────────────────────────────────────────────
   21. RESPONSIVE — MOBILE (≤ 640px)
   ────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  :root {
    --space-32: 4rem;
    --space-24: 3rem;
    --space-20: 2.5rem;
    --space-16: 2.5rem;
  }

  .container {
    padding-inline: var(--space-5);
  }

  .nav__inner {
    padding-inline: var(--space-5);
  }

  .nav__mobile {
    padding-inline: var(--space-5);
  }

  .hero__grid {
    grid-template-columns: 1fr;
    padding-inline: var(--space-5);
    column-gap: 0;
  }

  .hero__content {
    padding-inline: 0;
    padding-block: var(--space-12) var(--space-6);
    padding-right: 0;
  }

  /* Spans inline so the heading wraps as a single flow */
  .hero__line {
    display: inline;
  }

  .hero__heading {
    font-size: clamp(2rem, 8vw, 2.75rem);
  }

  .hero__ctas {
    flex-direction: column;
    align-items: stretch;
  }

  /* Visual: compact strip below copy */
  .hero__visual {
    justify-content: center;
    padding-block: 0;
    padding-bottom: var(--space-10);
    max-height: 260px;
    overflow: hidden;
    clip-path: inset(0);
    opacity: 0.65;
  }

  .hero__svg {
    max-height: 260px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .cards--3,
  .cards--2 {
    grid-template-columns: 1fr;
  }

  .card {
    padding: var(--space-8) var(--space-6);
  }

  .capabilities__grid {
    grid-template-columns: 1fr;
  }

  .metrics {
    grid-template-columns: 1fr 1fr;
  }

  .app-grid {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .team-card {
    flex-direction: column;
    gap: var(--space-4);
  }

  .workflow {
    flex-direction: column;
    gap: var(--space-3);
    overflow-x: visible;
  }

  .workflow__item {
    min-width: unset;
    width: 100%;
  }

  .workflow__arrow {
    display: none;
  }

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

  .footer__nav {
    justify-content: flex-start;
    max-width: 100%;
  }

  .validation__callout {
    padding: var(--space-5) var(--space-5);
  }
}

/* ──────────────────────────────────────────────────────────
   22. SELECTION COLOR
   ────────────────────────────────────────────────────────── */
::selection {
  background: rgba(77, 182, 216, 0.25);
  color: var(--color-text);
}

/* ──────────────────────────────────────────────────────────
   23. MICRO-BREAKPOINT — SMALL PHONES (≤ 430px)
   ────────────────────────────────────────────────────────── */
@media (max-width: 430px) {
  :root {
    --nav-height: 60px;
  }

  .nav__inner {
    padding-inline: var(--space-4);
  }

  .nav__logo-text {
    font-size: 0.875rem;
  }

  .hero__grid {
    padding-inline: var(--space-4);
  }

  /* Ensure spans are inline at smallest sizes */
  .hero__line {
    display: inline;
  }

  .hero__heading {
    font-size: clamp(1.75rem, 7vw, 2.25rem);
  }

  .hero__sub {
    font-size: 0.9375rem;
  }

  .hero__visual {
    max-height: 220px;
    opacity: 0.55;
  }

  .hero__svg {
    max-height: 220px;
  }

  .container {
    padding-inline: var(--space-4);
  }

  .metrics {
    grid-template-columns: 1fr 1fr;
  }

  .section__heading {
    font-size: clamp(1.625rem, 6vw, 2rem);
  }
}