/* ============================================================
   Venkatramana Manchana | IAM portfolio
   Theme: dark, locked (dark-tech brief). Single accent: emerald.
   Radius system: cards/buttons/inputs 12px, chips/pills full.
   ============================================================ */

/* ---------- Fonts (self-hosted) ---------- */
@font-face {
  font-family: "Space Grotesk";
  src: url("../assets/fonts/space-grotesk-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("../assets/fonts/space-grotesk-500.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("../assets/fonts/space-grotesk-700.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../assets/fonts/jetbrains-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../assets/fonts/jetbrains-mono-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

/* ---------- Tokens ----------
   Dark is the default theme. Light overrides come from either the
   OS preference or the manual toggle ([data-theme] wins over OS). */
:root {
  --bg: #0b0d11;
  --surface: #10131a;
  --surface-2: #151923;
  --line: rgba(231, 235, 243, 0.09);
  --line-strong: rgba(231, 235, 243, 0.28);
  --text: #e7ebf3;
  --text-2: #9aa4b5;
  --accent: #34d399;
  --accent-strong: #23b381;
  --accent-ink: #06281c;
  --accent-soft: rgba(52, 211, 153, 0.14);
  --accent-faint: rgba(52, 211, 153, 0.07);
  --danger: #e26d6d;
  --danger-soft: rgba(226, 109, 109, 0.14);
  --nav-bg: rgba(11, 13, 17, 0.82);
  --nav-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --radius: 12px;
  --font-sans: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", Consolas, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f2f4f8;
  --surface: #fbfcfe;
  --surface-2: #e9edf3;
  --line: rgba(15, 19, 26, 0.1);
  --line-strong: rgba(15, 19, 26, 0.26);
  --text: #171b22;
  --text-2: #5b6472;
  --accent: #077552;
  --accent-strong: #065f43;
  --accent-ink: #ffffff;
  --accent-soft: rgba(7, 117, 82, 0.12);
  --accent-faint: rgba(7, 117, 82, 0.07);
  --danger: #b42318;
  --danger-soft: rgba(180, 35, 24, 0.1);
  --nav-bg: rgba(242, 244, 248, 0.85);
  --nav-shadow: 0 8px 24px rgba(15, 19, 26, 0.08);
  color-scheme: light;
}

:root[data-theme="neon"] {
  --bg: #060810;
  --surface: #0b0e18;
  --surface-2: #101527;
  --line: rgba(80, 240, 255, 0.12);
  --line-strong: rgba(80, 240, 255, 0.32);
  --text: #e6faff;
  --text-2: #7f9bb3;
  --accent: #22d3ee;
  --accent-strong: #67e8f9;
  --accent-ink: #03151a;
  --accent-soft: rgba(34, 211, 238, 0.16);
  --accent-faint: rgba(34, 211, 238, 0.09);
  --danger: #fb7185;
  --danger-soft: rgba(251, 113, 133, 0.16);
  --nav-bg: rgba(6, 8, 16, 0.85);
  --nav-shadow: 0 8px 30px rgba(34, 211, 238, 0.14);
  --glow: 0 0 18px rgba(34, 211, 238, 0.35);
  color-scheme: dark;
}

/* Neon-only glow details */
[data-theme="neon"] .btn-primary { box-shadow: var(--glow); }
[data-theme="neon"] .hero-role { text-shadow: 0 0 14px rgba(34, 211, 238, 0.55); }
[data-theme="neon"] h1 { text-shadow: 0 0 28px rgba(34, 211, 238, 0.22); }
[data-theme="neon"] .brand-dot { text-shadow: 0 0 10px rgba(34, 211, 238, 0.8); }
[data-theme="neon"] .flow-step.active .flow-node,
[data-theme="neon"] .flow-step.done .flow-node {
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
}
[data-theme="neon"] .flow-step.blocked .flow-node {
  box-shadow: 0 0 10px rgba(251, 113, 133, 0.7);
}
[data-theme="neon"] .work-card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 0 26px rgba(34, 211, 238, 0.12);
}
[data-theme="neon"] .metric-num { text-shadow: 0 0 16px rgba(34, 211, 238, 0.4); }

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]):not([data-theme="neon"]) {
    --bg: #f2f4f8;
    --surface: #fbfcfe;
    --surface-2: #e9edf3;
    --line: rgba(15, 19, 26, 0.1);
    --line-strong: rgba(15, 19, 26, 0.26);
    --text: #171b22;
    --text-2: #5b6472;
    --accent: #077552;
    --accent-strong: #065f43;
    --accent-ink: #ffffff;
    --accent-soft: rgba(7, 117, 82, 0.12);
    --accent-faint: rgba(7, 117, 82, 0.07);
    --danger: #b42318;
    --danger-soft: rgba(180, 35, 24, 0.1);
    --nav-bg: rgba(242, 244, 248, 0.85);
    --nav-shadow: 0 8px 24px rgba(15, 19, 26, 0.08);
    color-scheme: light;
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { padding: 0; list-style: none; }
[hidden] { display: none !important; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Type ---------- */
h1 {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 700;
}
h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-weight: 700;
}
h3 {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 12px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.15s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost {
  border-color: var(--line);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--line-strong); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.nav.scrolled {
  border-bottom-color: var(--line-strong);
  box-shadow: var(--nav-shadow);
}
.theme-toggle {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px; /* pill */
  color: var(--text-2);
  width: 36px;
  height: 36px;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.3s var(--ease);
}
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--line-strong);
  transform: rotate(180deg);
}
.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.brand-dot { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  color: var(--text-2);
  font-size: 0.95rem;
  transition: color 0.2s var(--ease);
}
.nav-links a:hover { color: var(--text); }
.nav-cta { padding: 9px 18px; }

/* Burger: hidden on desktop, shown under 700px */
.nav-burger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  flex: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px; /* pill */
  cursor: pointer;
}
.nav-burger span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.25s var(--ease);
}
.nav.nav-open .nav-burger span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav.nav-open .nav-burger span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

/* ---------- Background: aurora drift ---------- */
@media (prefers-reduced-motion: no-preference) {
  body::before {
    content: "";
    position: fixed;
    inset: -25%;
    z-index: -1;
    pointer-events: none;
    background:
      radial-gradient(38% 32% at 22% 24%, var(--accent-faint), transparent 70%),
      radial-gradient(30% 34% at 78% 72%, var(--accent-faint), transparent 70%);
    animation: aurora 28s ease-in-out infinite alternate;
  }
  @keyframes aurora {
    from { transform: translate(-2%, -1%) scale(1); }
    to { transform: translate(3%, 2.5%) scale(1.12); }
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100dvh - 68px);
  display: flex;
  align-items: center;
  padding: 64px 0 80px;
}
.hero-net {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.hero .hero-grid { position: relative; }
.hero-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 64px;
  align-items: center;
  width: 100%;
}
.hero-role {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-sub {
  color: var(--text-2);
  font-size: 1.12rem;
  max-width: 46ch;
  margin-top: 22px;
}
.hero-ctas {
  display: flex;
  gap: 14px;
  margin-top: 36px;
}

/* ---------- Auth-flow component ---------- */
.hero-visual { min-width: 0; }
.flow {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.flow-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}
.flow-title { font-weight: 500; font-size: 0.95rem; }
.flow-state {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  padding: 4px 12px;
  border-radius: 999px; /* pill */
  background: var(--surface-2);
  color: var(--text-2);
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.flow-state[data-state="granted"] {
  background: var(--accent-soft);
  color: var(--accent);
}
.flow-state[data-state="blocked"] {
  background: var(--danger-soft);
  color: var(--danger);
}
.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.flow-step {
  position: relative;
  display: flex;
  gap: 16px;
  padding: 12px 8px;
  border-radius: var(--radius);
  opacity: 0.38;
  transition: opacity 0.4s var(--ease), background 0.4s var(--ease);
}
.flow-step.active,
.flow-step.done { opacity: 1; }
.flow-step.active { background: var(--surface-2); }
.flow-node {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  border: 2px solid var(--text-2);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.flow-step.active .flow-node,
.flow-step.done .flow-node {
  border-color: var(--accent);
  background: var(--accent);
}
.flow-step.blocked .flow-node {
  border-color: var(--danger);
  background: var(--danger);
}
/* connector line between nodes; fills with accent as steps complete */
.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 12.5px;
  top: 30px;
  bottom: -8px;
  width: 1px;
  background: var(--line);
  transition: background-color 0.5s var(--ease);
}
.flow-step.done:not(:last-child)::after {
  background: var(--accent);
  opacity: 0.5;
}
.flow-step.blocked:not(:last-child)::after {
  background: var(--danger);
  opacity: 0.5;
}
.flow-label {
  display: block;
  font-weight: 500;
  font-size: 0.92rem;
}
.flow-detail {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-2);
  margin-top: 2px;
  min-height: 1.2em;
}
.flow-step.blocked .flow-detail { color: var(--danger); }

/* ---------- Stats ---------- */
.stats {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 40px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
}
.stat-label {
  color: var(--text-2);
  font-size: 0.92rem;
}

/* ---------- Work ---------- */
.work { padding: 120px 0; }
.work h2 { margin-bottom: 48px; }
.work-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.work-card {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.work-card:hover {
  border-color: var(--accent-soft);
}
/* Cursor spotlight: radial highlight follows the pointer (set via --mx/--my) */
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .work-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(
      260px circle at var(--mx, 50%) var(--my, 50%),
      var(--accent-faint),
      transparent 65%
    );
    opacity: 0;
    transition: opacity 0.3s var(--ease);
    pointer-events: none;
  }
  .work-card:hover::before { opacity: 1; }
}
.work-card h3 { font-size: 1.3rem; font-weight: 700; }
.work-card p {
  color: var(--text-2);
  font-size: 0.98rem;
  margin-top: 14px;
}
.work-card-wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  align-items: center;
  background: linear-gradient(135deg, var(--surface) 60%, var(--accent-faint));
}
.work-card-metric {
  border-left: 1px solid var(--line);
  padding-left: 48px;
}
.metric-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 2.4rem;
  color: var(--accent);
  letter-spacing: -0.03em;
}
.work-card-metric .metric-label {
  color: var(--text-2);
  font-size: 0.9rem;
}
.work-outcome {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.work-outcome .metric-num {
  display: inline;
  font-size: 1.25rem;
  margin-right: 6px;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.tags li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-2);
  border: 1px solid var(--line);
  border-radius: 999px; /* pill */
  padding: 4px 12px;
}

/* ---------- Experience ---------- */
.experience {
  padding: 120px 0;
  border-top: 1px solid var(--line);
}
.experience h2 { margin-bottom: 48px; }
.exp-list { display: flex; flex-direction: column; }
.exp-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
}
.exp-dates {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-2);
  padding-top: 4px;
}
.exp-body h3 { font-size: 1.25rem; font-weight: 700; }
.exp-company {
  color: var(--accent);
  font-size: 0.92rem;
  margin-top: 4px;
}
.exp-body p:not(.exp-company) {
  color: var(--text-2);
  font-size: 0.98rem;
  margin-top: 12px;
  max-width: 62ch;
}

/* ---------- Capabilities ---------- */
.capabilities {
  padding: 120px 0;
  border-top: 1px solid var(--line);
}
.capabilities h2 { margin-bottom: 48px; }
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}
.cap-col { border-top: 1px solid var(--line); padding-top: 20px; }
.cap-col h3 {
  color: var(--accent);
  font-size: 0.95rem;
  margin-bottom: 14px;
}
.cap-col li {
  color: var(--text-2);
  font-size: 0.95rem;
  padding: 5px 0;
}

/* ---------- About ---------- */
.about {
  padding: 120px 0;
  border-top: 1px solid var(--line);
}
.about-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 72px;
  align-items: start;
}
/* Identity orbit: chips circle the IAM core, text stays upright */
.orbit {
  --r-inner: 105px;
  --r-outer: 165px;
  position: relative;
  width: 360px;
  max-width: 100%;
  aspect-ratio: 1;
  margin: 24px auto 0;
}
.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110px;
  height: 110px;
  border-radius: 50%;
  border: 1px solid var(--accent-soft);
  background: var(--accent-faint);
  display: grid;
  place-items: center;
}
.orbit-core span {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  color: var(--accent);
}
.orbit-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px dashed var(--line);
  border-radius: 50%;
}
.orbit-ring-inner { width: calc(var(--r-inner) * 2); height: calc(var(--r-inner) * 2); }
.orbit-ring-outer { width: calc(var(--r-outer) * 2); height: calc(var(--r-outer) * 2); }
.orbit-chip {
  position: absolute;
  top: 50%;
  left: 50%;
  padding: 5px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px; /* pill */
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-2);
  white-space: nowrap;
  transform: translate(-50%, -50%) rotate(var(--angle)) translateX(var(--r)) rotate(calc(var(--angle) * -1));
}
.chip-inner { --r: var(--r-inner); }
.chip-outer { --r: var(--r-outer); }
@media (prefers-reduced-motion: no-preference) {
  .chip-inner {
    animation: orbitCW 36s linear infinite;
    animation-delay: var(--delay);
  }
  .chip-outer {
    animation: orbitCCW 48s linear infinite;
    animation-delay: var(--delay);
  }
  @keyframes orbitCW {
    from { transform: translate(-50%, -50%) rotate(0deg) translateX(var(--r)) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg) translateX(var(--r)) rotate(-360deg); }
  }
  @keyframes orbitCCW {
    from { transform: translate(-50%, -50%) rotate(0deg) translateX(var(--r)) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(-360deg) translateX(var(--r)) rotate(360deg); }
  }
}
[data-theme="neon"] .orbit-chip { box-shadow: 0 0 12px rgba(34, 211, 238, 0.12); }
[data-theme="neon"] .orbit-core { box-shadow: 0 0 30px rgba(34, 211, 238, 0.18); }
.about-copy h2 { margin-bottom: 24px; }
.about-copy p {
  color: var(--text-2);
  max-width: 58ch;
}
.about-copy p + p { margin-top: 16px; }
.certs { margin-top: 40px; }
.certs h3 { margin-bottom: 14px; }
.certs li {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--text-2);
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

/* ---------- Contact ---------- */
.contact {
  padding: 140px 0;
  border-top: 1px solid var(--line);
}
.contact h2 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
.contact-sub {
  color: var(--text-2);
  margin-top: 18px;
  max-width: 48ch;
}
.contact-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 40px;
}
.social-link {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px; /* pill */
  display: grid;
  place-items: center;
  color: var(--text-2);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.social-link:hover {
  color: var(--accent);
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
[data-theme="neon"] .social-link:hover { box-shadow: var(--glow); }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  color: var(--text-2);
  font-size: 0.85rem;
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 1; }
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  }
  .reveal.in {
    opacity: 1;
    transform: none;
  }

  /* Stagger cards inside grids as they reveal together */
  .work-grid > .reveal:nth-child(2) { transition-delay: 0.08s; }
  .work-grid > .reveal:nth-child(3) { transition-delay: 0.16s; }
  .cap-grid > .reveal:nth-child(2) { transition-delay: 0.06s; }
  .cap-grid > .reveal:nth-child(3) { transition-delay: 0.12s; }
  .cap-grid > .reveal:nth-child(4) { transition-delay: 0.18s; }

  /* Hero entrance cascade: role, name, sub, CTAs, then the flow card */
  .hero-copy > * {
    opacity: 0;
    transform: translateY(18px);
    animation: rise 0.7s var(--ease) forwards;
  }
  .hero-copy > :nth-child(1) { animation-delay: 0.05s; }
  .hero-copy > :nth-child(2) { animation-delay: 0.14s; }
  .hero-copy > :nth-child(3) { animation-delay: 0.24s; }
  .hero-copy > :nth-child(4) { animation-delay: 0.34s; }
  .hero-visual {
    opacity: 0;
    transform: translateY(26px);
    animation: rise 0.8s var(--ease) 0.42s forwards;
  }
  @keyframes rise {
    to { opacity: 1; transform: none; }
  }

  /* Active policy-step node pulses while evaluating */
  .flow-step.active .flow-node {
    animation: nodePulse 1.1s ease-in-out infinite;
  }
  @keyframes nodePulse {
    50% { transform: scale(1.4); }
  }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { min-height: auto; padding: 72px 0; }
  .work-card-wide { grid-template-columns: 1fr; gap: 28px; }
  .work-card-metric {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 24px;
  }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .exp-item { grid-template-columns: 1fr; gap: 8px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 700px) {
  .container { padding: 0 20px; }

  /* Nav: burger + dropdown panel */
  .nav-inner { gap: 12px; padding: 0 20px; }
  .nav-burger { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    flex-direction: column;
    gap: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    padding: 6px 20px 14px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  }
  .nav.nav-open .nav-links {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .nav-links a {
    padding: 12px 0;
    font-size: 1.05rem;
    border-top: 1px solid var(--line);
  }
  .nav-links a:first-child { border-top: 0; }
  .nav-cta { margin-left: auto; padding: 8px 14px; font-size: 0.88rem; }

  /* Type + spacing */
  h1 { font-size: clamp(2.1rem, 11vw, 2.8rem); }
  .hero { padding: 48px 0 64px; }
  .hero-grid { gap: 40px; }
  .hero-sub { font-size: 1.02rem; }
  .flow { padding: 18px; }
  .stats { padding: 32px 0; }
  .stats-grid { grid-template-columns: 1fr; gap: 20px; }
  .work, .capabilities, .about, .experience { padding: 72px 0; }
  .contact { padding: 88px 0; }
  .work h2, .capabilities h2, .experience h2 { margin-bottom: 32px; }
  .work-grid { grid-template-columns: 1fr; gap: 16px; }
  .work-card { padding: 24px; }
  .work-card-wide { gap: 24px; }
  .cap-grid { grid-template-columns: 1fr; gap: 28px; }
  .exp-item { padding: 28px 0; gap: 6px; }
  .about-grid { gap: 32px; }
  .orbit { --r-inner: 85px; --r-outer: 132px; width: 300px; }
  .hero-ctas { flex-wrap: wrap; }
  .contact-actions { flex-wrap: wrap; gap: 20px; }
}