/* ============================================================
   Nader Abdelshahid — Portfolio
   Design system + homepage. Premium, restrained, engineering.
   ============================================================ */

/* ---- Design tokens ---------------------------------------- */
:root {
  /* Surfaces (cool ink, layered) */
  --bg: #0a0b0e;
  --bg-1: #0e1015;
  --bg-2: #14171f;
  --bg-3: #1a1e28;
  --bg-inset: #090a0d;

  /* Text */
  --text: #eef1f6;
  --text-2: #a7aebd;
  --text-3: #6f7787;

  /* Accent — iris / indigo (used sparingly) */
  --accent: #6e8bff;
  --accent-text: #8ea2ff;
  --accent-strong: #5b78ff;
  --accent-soft: rgba(110, 139, 255, 0.1);
  --accent-line: rgba(110, 139, 255, 0.24);

  /* Supporting tone — only inside diagrams for legibility */
  --mint: #5ed2a0;
  --mint-soft: rgba(94, 210, 160, 0.1);
  --mint-line: rgba(94, 210, 160, 0.24);

  /* Borders + effects */
  --border: rgba(255, 255, 255, 0.08);
  --border-2: rgba(255, 255, 255, 0.14);
  --ring: rgba(110, 139, 255, 0.55);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 32px 64px rgba(0, 0, 0, 0.45);

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'JetBrains Mono', 'Cascadia Code', Consolas, 'Liberation Mono', Menlo, monospace;

  --shell: 1180px;
  --gutter: 24px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 140ms var(--ease);
  --t-base: 240ms var(--ease);
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--text);
  font-weight: 680;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 4.15rem);
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.75rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.2rem;
}

p {
  color: var(--text-2);
}

::selection {
  background: rgba(110, 139, 255, 0.28);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---- Utilities -------------------------------------------- */
.shell {
  width: min(var(--shell), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.eyebrow::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--accent-line);
}

.eyebrow--plain::before {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  padding: 12px 18px;
  border-radius: var(--radius-xs);
  color: #0a0b0e;
  background: var(--accent);
  font-weight: 600;
  transition: top var(--t-base);
}

.skip-link:focus {
  top: 16px;
}

/* ---- Buttons ---------------------------------------------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--radius-xs);
  font-size: 0.94rem;
  font-weight: 560;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: transform var(--t-fast), background var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}

.button svg {
  width: 17px;
  height: 17px;
}

.button--primary {
  color: #0a0b0e;
  background: var(--accent);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2) inset;
}

.button--primary:hover {
  background: var(--accent-text);
  transform: translateY(-2px);
}

.button--ghost {
  color: var(--text);
  border: 1px solid var(--border-2);
  background: rgba(255, 255, 255, 0.02);
}

.button--ghost:hover {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: #fff;
  transform: translateY(-2px);
}

.button--sm {
  min-height: 40px;
  padding: 0 16px;
  font-size: 0.86rem;
}

/* ---- Inline link ------------------------------------------ */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--accent-text);
  font-weight: 560;
  font-size: 0.92rem;
  transition: gap var(--t-base), color var(--t-base);
}

.arrow-link::after {
  content: '→';
  transition: transform var(--t-base);
}

.arrow-link:hover {
  color: #fff;
}

.arrow-link:hover::after {
  transform: translateX(4px);
}

/* ---- Tag chips -------------------------------------------- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tags li,
.tags span {
  padding: 5px 11px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

/* ---- Header / nav ----------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: transparent;
  transition: background var(--t-base), border-color var(--t-base), backdrop-filter var(--t-base);
}

.site-header--scrolled {
  border-bottom-color: var(--border);
  background: rgba(10, 11, 14, 0.72);
  backdrop-filter: saturate(150%) blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  flex-shrink: 0;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  border: 1px solid var(--accent-line);
  background: linear-gradient(150deg, rgba(110, 139, 255, 0.22), rgba(110, 139, 255, 0.04));
  color: var(--accent-text);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand__text strong {
  font-size: 0.95rem;
  font-weight: 620;
}

.brand__text span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-menu a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 13px;
  border-radius: 8px;
  color: var(--text-2);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--t-fast), background var(--t-fast);
}

.nav-menu a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.nav-menu__cta {
  margin-left: 8px;
  color: #0a0b0e !important;
  background: var(--accent) !important;
  font-weight: 580 !important;
  padding: 0 16px !important;
  transition: background var(--t-base), transform var(--t-fast) !important;
}

.nav-menu__cta:hover {
  background: var(--accent-text) !important;
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border-2);
  background: rgba(255, 255, 255, 0.03);
}

.menu-toggle__bar {
  display: block;
  width: 19px;
  height: 1.5px;
  margin: 4px auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-base);
}

.menu-toggle[aria-expanded='true'] .menu-toggle__bar:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.menu-toggle[aria-expanded='true'] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded='true'] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

/* ---- Section rhythm --------------------------------------- */
.section {
  padding: clamp(72px, 10vw, 120px) 0;
  position: relative;
}

.section--tight {
  padding: clamp(52px, 7vw, 84px) 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 52px;
}

.section-head p {
  margin-top: 16px;
  font-size: 1.05rem;
}

.section-divider {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 0;
}

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  line-height: 1.65;
  color: var(--text-2);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(48px, 7vw, 88px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.hero::before,
.hero::after {
  content: '';
  position: absolute;
  z-index: 0;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(90px);
}

.hero::before {
  top: -180px;
  right: -120px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(110, 139, 255, 0.16), transparent 70%);
}

.hero::after {
  bottom: -220px;
  left: -160px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(94, 210, 160, 0.08), transparent 70%);
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.hero__status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 24px;
  padding: 7px 14px 7px 12px;
  border: 1px solid var(--border-2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.82rem;
  color: var(--text-2);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(94, 210, 160, 0.15);
}

.hero h1 {
  margin-bottom: 24px;
}

.hero h1 .accent {
  color: var(--accent-text);
}

.hero__lead {
  max-width: 560px;
  margin-bottom: 20px;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.6;
  color: var(--text-2);
}

.hero__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}

.hero__stack span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-3);
}

.hero__stack span:not(:last-child)::after {
  content: '·';
  margin-left: 8px;
  color: var(--border-2);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

.hero__social {
  display: flex;
  gap: 10px;
}

.hero__social a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  border: 1px solid var(--border);
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.02);
  transition: color var(--t-base), border-color var(--t-base), transform var(--t-fast), background var(--t-base);
}

.hero__social a:hover {
  color: #fff;
  border-color: var(--accent-line);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.hero__social svg {
  width: 19px;
  height: 19px;
}

/* Portrait card */
.hero__portrait {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-2);
  overflow: hidden;
  background: var(--bg-2);
  box-shadow: var(--shadow-lg);
}

.hero__portrait::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(9, 10, 13, 0.86));
  pointer-events: none;
}

.hero__portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 22%;
  filter: saturate(102%) contrast(102%);
}

.hero__portrait-meta {
  position: absolute;
  z-index: 1;
  left: 20px;
  right: 20px;
  bottom: 18px;
}

.hero__portrait-meta strong {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.hero__portrait-meta span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--text-2);
}

/* ---- Metrics strip ---------------------------------------- */
.metrics {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
}

.metrics__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.metric {
  padding: 34px clamp(16px, 2.4vw, 34px);
  border-left: 1px solid var(--border);
}

.metric:first-child {
  border-left: 0;
  padding-left: 0;
}

.metric strong {
  display: block;
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  font-weight: 660;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
}

.metric strong .unit {
  color: var(--accent-text);
}

.metric span {
  display: block;
  margin-top: 10px;
  font-size: 0.88rem;
  color: var(--text-3);
  line-height: 1.45;
}

/* ---- Capabilities ----------------------------------------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.cap {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-1);
  transition: border-color var(--t-base), transform var(--t-base), background var(--t-base);
}

.cap:hover {
  border-color: var(--border-2);
  transform: translateY(-3px);
  background: var(--bg-2);
}

.cap__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 22px;
  border-radius: 12px;
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent-text);
}

.cap__icon svg {
  width: 22px;
  height: 22px;
}

.cap h3 {
  margin-bottom: 12px;
}

.cap p {
  font-size: 0.95rem;
  margin-bottom: 18px;
}

/* ============================================================
   FEATURED WORK
   ============================================================ */
.section-head--split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  max-width: none;
}

.section-head--split > div {
  max-width: 640px;
}

/* Flagship */
.flagship {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-1);
  margin-bottom: 24px;
}

.flagship__body {
  padding: clamp(28px, 3.4vw, 48px);
  display: flex;
  flex-direction: column;
}

.flagship__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.pill--mint {
  border-color: var(--mint-line);
  background: var(--mint-soft);
  color: var(--mint);
}

.pill--muted {
  border-color: var(--border-2);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-3);
}

.flagship__body h3 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}

.flagship__body p {
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 16px;
}

.flagship__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
  margin: 8px 0 24px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.flagship__meta div span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 5px;
}

.flagship__meta div strong {
  font-size: 0.9rem;
  font-weight: 550;
  color: var(--text);
}

.flagship__foot {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  padding-top: 22px;
}

/* Diagram panel */
.flagship__visual {
  position: relative;
  padding: clamp(24px, 3vw, 40px);
  background:
    radial-gradient(circle at 80% 0%, rgba(110, 139, 255, 0.1), transparent 55%),
    var(--bg-inset);
  border-left: 1px solid var(--border);
  display: flex;
  align-items: center;
}

.diagram {
  width: 100%;
  display: grid;
  gap: 14px;
  font-family: var(--font-mono);
}

.diagram__row {
  display: grid;
  gap: 10px;
}

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

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

.node {
  padding: 12px 10px;
  border-radius: 10px;
  border: 1px solid var(--border-2);
  background: var(--bg-2);
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-2);
  line-height: 1.3;
}

.node small {
  display: block;
  margin-top: 3px;
  font-size: 0.62rem;
  color: var(--text-3);
}

.node--accent {
  border-color: var(--accent-line);
  background: linear-gradient(160deg, rgba(110, 139, 255, 0.16), rgba(110, 139, 255, 0.03));
  color: #fff;
}

.node--core {
  padding: 16px 12px;
  border-color: var(--accent-line);
  background: linear-gradient(160deg, rgba(110, 139, 255, 0.2), rgba(110, 139, 255, 0.04));
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
}

.node--mint {
  border-color: var(--mint-line);
  background: linear-gradient(160deg, rgba(94, 210, 160, 0.14), rgba(94, 210, 160, 0.03));
  color: var(--mint);
}

.diagram__flow {
  display: grid;
  place-items: center;
  color: var(--text-3);
  font-size: 0.9rem;
}

.diagram__caption {
  margin-top: 4px;
  text-align: center;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* Secondary featured cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-1);
  transition: border-color var(--t-base), transform var(--t-base), background var(--t-base);
}

.feature:hover {
  border-color: var(--border-2);
  transform: translateY(-3px);
  background: var(--bg-2);
}

.feature__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.feature__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  border: 1px solid var(--border-2);
  background: var(--bg-3);
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.82rem;
}

.feature h3 {
  margin-bottom: 10px;
  font-size: 1.22rem;
}

.feature p {
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 18px;
}

.feature .tags {
  margin-bottom: 20px;
}

.feature__foot {
  margin-top: auto;
}

/* ============================================================
   EXPERIENCE
   ============================================================ */
.exp-layout {
  display: grid;
  grid-template-columns: 0.62fr 1.38fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.exp-intro {
  position: sticky;
  top: 100px;
}

.exp-intro p {
  margin-top: 16px;
  font-size: 1rem;
}

.exp-intro .button {
  margin-top: 26px;
}

.timeline {
  display: grid;
  gap: 0;
}

.tl-item {
  position: relative;
  padding: 0 0 40px 32px;
  border-left: 1px solid var(--border);
}

.tl-item:last-child {
  padding-bottom: 0;
}

.tl-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 4px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}

.tl-item--present::before {
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.tl-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  margin-bottom: 4px;
}

.tl-item h3 {
  font-size: 1.12rem;
  font-weight: 620;
}

.tl-role {
  color: var(--accent-text);
  font-size: 0.92rem;
  font-weight: 550;
  margin-bottom: 10px;
}

.tl-date {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--text-3);
  white-space: nowrap;
}

.tl-item p {
  font-size: 0.94rem;
  line-height: 1.62;
}

.tl-item .tags {
  margin-top: 14px;
}

/* ============================================================
   PROJECTS / PRODUCTS
   ============================================================ */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}

.project-filter-btn {
  min-height: 38px;
  padding: 0 15px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-2);
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--t-base), border-color var(--t-base), background var(--t-base);
}

.project-filter-btn:hover {
  color: var(--text);
  border-color: var(--border-2);
}

.project-filter-btn--active {
  color: #0a0b0e;
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 560;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.projects-empty {
  grid-column: 1 / -1;
  padding: 40px;
  text-align: center;
  color: var(--text-3);
  border: 1px dashed var(--border-2);
  border-radius: var(--radius-md);
}

.project {
  display: flex;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-1);
  transition: border-color var(--t-base), transform var(--t-base), background var(--t-base);
}

.project:hover {
  border-color: var(--border-2);
  transform: translateY(-3px);
  background: var(--bg-2);
}

.project__mark {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 13px;
  border: 1px solid var(--border-2);
  background: var(--bg-3);
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
}

.project__body {
  min-width: 0;
}

.project__kicker {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.project h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.project p {
  font-size: 0.9rem;
  line-height: 1.58;
  margin-bottom: 14px;
}

.project--hidden {
  display: none;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-layout {
  display: grid;
  grid-template-columns: 0.62fr 1.38fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.skills-intro {
  position: sticky;
  top: 100px;
}

.skills-intro p {
  margin-top: 16px;
}

.skill-groups {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.skill-group {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-1);
}

.skill-group h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.skill-group h3 svg {
  width: 17px;
  height: 17px;
}

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.cert-band {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.certificate-card {
  display: flex;
  align-items: center;
  gap: 18px;
  width: 100%;
  padding: 18px;
  text-align: left;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-1);
  transition: border-color var(--t-base), transform var(--t-base), background var(--t-base);
}

.certificate-card:hover {
  border-color: var(--accent-line);
  transform: translateY(-2px);
  background: var(--bg-2);
}

.certificate-card > img {
  width: 62px;
  height: 62px;
  flex-shrink: 0;
  object-fit: contain;
}

.certificate-card__copy {
  min-width: 0;
}

.certificate-card__copy strong {
  display: block;
  font-size: 0.98rem;
  font-weight: 580;
  line-height: 1.3;
  margin-bottom: 4px;
}

.certificate-card__copy > span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-3);
}

.certificate-card__action {
  display: inline-block;
  margin-top: 8px;
  color: var(--accent-text);
  font-size: 0.8rem;
  font-weight: 560;
}

/* Certificate modal */
.certificate-modal {
  width: min(880px, calc(100% - 32px));
  max-height: calc(100% - 40px);
  padding: 0;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  background: var(--bg-2);
  color: var(--text);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.certificate-modal::backdrop {
  background: rgba(6, 7, 9, 0.78);
  backdrop-filter: blur(6px);
}

.certificate-modal__panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.certificate-modal__visual {
  padding: 30px;
  display: grid;
  place-items: center;
  background: var(--bg-inset);
  border-right: 1px solid var(--border);
}

.certificate-modal__visual img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: var(--radius-xs);
}

.certificate-modal__content {
  padding: clamp(28px, 4vw, 44px);
  align-self: center;
}

.certificate-modal__content h2 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.certificate-modal__meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-text);
  margin-bottom: 16px;
}

.certificate-modal__content p {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

.certificate-modal__verify[hidden] {
  display: none;
}

.certificate-modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border-2);
  background: rgba(10, 11, 14, 0.7);
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
  transition: background var(--t-base), border-color var(--t-base);
}

.certificate-modal__close:hover {
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

body.has-open-modal {
  overflow: hidden;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  border-top: 1px solid var(--border);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: clamp(40px, 6vw, 88px);
  align-items: start;
}

.contact__copy h2 {
  margin-bottom: 20px;
}

.contact__copy .lead {
  margin-bottom: 32px;
}

.contact__direct {
  display: grid;
  gap: 10px;
}

.contact__direct a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-1);
  transition: border-color var(--t-base), background var(--t-base), transform var(--t-fast);
}

.contact__direct a:hover {
  border-color: var(--accent-line);
  background: var(--bg-2);
  transform: translateX(4px);
}

.contact__direct svg {
  width: 20px;
  height: 20px;
  color: var(--accent-text);
  flex-shrink: 0;
}

.contact__direct span {
  display: block;
}

.contact__direct .k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.contact__direct .v {
  font-size: 0.95rem;
  color: var(--text);
}

.contact-form {
  padding: clamp(24px, 3vw, 34px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-1);
}

.contact-form label {
  display: block;
  margin-bottom: 16px;
}

.contact-form label span {
  display: block;
  margin-bottom: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-2);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-2);
  background: var(--bg-inset);
  color: var(--text);
  font-size: 0.94rem;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-3);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .button {
  width: 100%;
  margin-top: 6px;
}

.contact-form__status {
  min-height: 20px;
  margin: 12px 0 0;
  font-size: 0.85rem;
  color: var(--text-3);
}

.contact-form__status[data-state='ok'] {
  color: var(--mint);
}

.contact-form__status[data-state='error'] {
  color: #ff8f8f;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-inset);
  padding: 44px 0;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-grid p {
  font-size: 0.86rem;
  color: var(--text-3);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.footer-nav a {
  font-size: 0.86rem;
  color: var(--text-2);
  transition: color var(--t-fast);
}

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

/* ============================================================
   MOTION — reveal on scroll (reduced-motion safe)
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }

  .hero__portrait {
    max-width: 380px;
    margin-inline: auto;
    order: -1;
  }

  .exp-layout,
  .skills-layout {
    grid-template-columns: 1fr;
  }

  .exp-intro,
  .skills-intro {
    position: static;
  }

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

  .flagship__visual {
    border-left: 0;
    border-top: 1px solid var(--border);
    order: -1;
  }

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

@media (max-width: 860px) {
  .nav-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: var(--gutter);
    left: var(--gutter);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px;
    border: 1px solid var(--border-2);
    border-radius: var(--radius-md);
    background: rgba(14, 16, 21, 0.96);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(-8px) scale(0.99);
    pointer-events: none;
    transition: opacity var(--t-base), transform var(--t-base);
  }

  .nav-menu.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav-menu a {
    min-height: 46px;
    padding: 0 14px;
  }

  .nav-menu__cta {
    margin-left: 0;
    margin-top: 6px;
    justify-content: center;
  }

  .menu-toggle {
    display: block;
  }

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

  .metric:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }

  .metric {
    border-top: 1px solid var(--border);
    padding: 26px clamp(16px, 3vw, 28px);
  }

  .metric:nth-child(1),
  .metric:nth-child(2) {
    border-top: 0;
  }

  .metric:nth-child(1) {
    padding-left: 0;
  }

  .section-head--split {
    flex-direction: column;
    align-items: flex-start;
  }

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

@media (max-width: 620px) {
  :root {
    --gutter: 18px;
  }

  .feature-grid,
  .cap-grid,
  .skill-groups,
  .project-grid,
  .cert-band {
    grid-template-columns: 1fr;
  }

  .flagship__meta {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .certificate-modal__panel {
    grid-template-columns: 1fr;
  }

  .certificate-modal__visual {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    max-height: 42vh;
  }

  .hero__actions .button {
    flex: 1 1 auto;
  }

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

  .metric {
    border-left: 0 !important;
    padding: 22px 0 !important;
    border-top: 1px solid var(--border);
  }

  .metric:first-child {
    border-top: 0;
  }
}

@media (max-width: 400px) {
  .hero__portrait {
    max-width: 100%;
  }

  .project {
    flex-direction: column;
    gap: 16px;
  }
}

/* ---- Reduced motion --------------------------------------- */


/* ============================================================
   ANIMATED ENGINEERING SYSTEM SHOWCASE
   ============================================================ */
.system-showcase {
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr);
  gap: 20px;
  align-items: stretch;
}

.showcase__rail {
  display: grid;
  gap: 8px;
  align-content: start;
}

.showcase-tab {
  --tab-accent: var(--accent);
  width: 100%;
  min-height: 62px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  text-align: left;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.018);
  color: var(--text-2);
  transition: transform var(--t-base), border-color var(--t-base), background var(--t-base), color var(--t-base);
}

.showcase-tab:hover {
  transform: translateX(3px);
  border-color: var(--border-2);
  color: var(--text);
  background: rgba(255, 255, 255, 0.035);
}

.showcase-tab.is-active {
  border-color: color-mix(in srgb, var(--tab-accent) 42%, transparent);
  background: linear-gradient(110deg, color-mix(in srgb, var(--tab-accent) 12%, transparent), rgba(255,255,255,.02));
  color: #fff;
  box-shadow: inset 3px 0 0 var(--tab-accent);
}

.showcase-tab__mark {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid color-mix(in srgb, var(--tab-accent) 32%, var(--border));
  border-radius: 9px;
  background: color-mix(in srgb, var(--tab-accent) 8%, var(--bg-3));
  color: var(--tab-accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
}

.showcase-tab > span:last-child {
  min-width: 0;
}

.showcase-tab strong,
.showcase-tab small {
  display: block;
}

.showcase-tab strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.84rem;
  font-weight: 620;
  letter-spacing: -0.01em;
}

.showcase-tab small {
  margin-top: 2px;
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 0.61rem;
  letter-spacing: 0.02em;
}

.showcase__stage {
  min-width: 0;
}

.showcase-panel {
  --system-accent: #9cff57;
  min-height: 620px;
  display: grid;
  grid-template-columns: minmax(250px, 0.72fr) minmax(0, 1.28fr);
  overflow: hidden;
  border: 1px solid var(--border-2);
  border-radius: 22px;
  background:
    radial-gradient(circle at 82% -10%, color-mix(in srgb, var(--system-accent) 9%, transparent), transparent 42%),
    linear-gradient(135deg, #0d1118, #0a0c11 60%, #080a0e);
  box-shadow: var(--shadow-md);
}

.showcase-panel[hidden] {
  display: none;
}

.showcase-panel[data-tone="cyan"] { --system-accent: #65d7ff; }
.showcase-panel[data-tone="blue"] { --system-accent: #7ca7ff; }
.showcase-panel[data-tone="gold"] { --system-accent: #e9c46a; }
.showcase-panel[data-tone="orange"] { --system-accent: #f3a86a; }
.showcase-panel[data-tone="teal"] { --system-accent: #79e0d0; }
.showcase-panel[data-tone="chartreuse"] { --system-accent: #b6f36d; }
.showcase-panel[data-tone="violet"] { --system-accent: #c99bff; }
.showcase-panel[data-tone="sky"] { --system-accent: #67b8ff; }
.showcase-panel[data-tone="mint"] { --system-accent: #68e0b0; }

.showcase-panel__copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  padding: clamp(28px, 3vw, 42px);
  border-right: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,.006));
}

.showcase-panel__copy::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, transparent 4%, var(--system-accent) 40%, transparent 96%);
  opacity: .65;
}

.showcase-panel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.showcase-panel__meta span {
  padding: 5px 9px;
  border: 1px solid color-mix(in srgb, var(--system-accent) 25%, var(--border));
  border-radius: 999px;
  background: color-mix(in srgb, var(--system-accent) 7%, transparent);
  color: color-mix(in srgb, var(--system-accent) 88%, white 12%);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.showcase-panel__copy h3 {
  margin-bottom: 14px;
  font-size: clamp(1.65rem, 2.8vw, 2.25rem);
  letter-spacing: -0.035em;
}

.showcase-panel__copy > p {
  margin-bottom: 22px;
  font-size: 0.96rem;
  line-height: 1.7;
}

.showcase-panel__copy .tags {
  margin-bottom: 24px;
}

.showcase-panel__copy .arrow-link {
  margin-top: auto;
  color: color-mix(in srgb, var(--system-accent) 86%, white 14%);
}

.showcase-panel__visual {
  min-width: 0;
  padding: clamp(20px, 2.5vw, 34px);
  display: grid;
  align-items: center;
}

.motion-console {
  --motion-progress: 0;
  position: relative;
  isolation: isolate;
  min-height: 500px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--system-accent) 22%, var(--border));
  border-radius: 18px;
  background:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px),
    #080b10;
  background-size: 32px 32px;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.04),
    0 22px 55px rgba(0,0,0,.3);
}

.motion-console::before {
  content: "";
  position: absolute;
  inset: -40% -20%;
  z-index: -1;
  background: radial-gradient(circle, color-mix(in srgb, var(--system-accent) 14%, transparent), transparent 55%);
  transform: translate3d(-20%, -8%, 0);
  animation: showcaseGlow 10s ease-in-out infinite alternate;
}

.motion-console::after {
  content: "";
  position: absolute;
  inset: 38px 0 auto;
  height: 90px;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--system-accent) 7%, transparent), transparent);
  opacity: .75;
  animation: showcaseScan 8.5s linear infinite;
}

.motion-console__chrome {
  position: relative;
  z-index: 2;
  height: 38px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 13px;
  border-bottom: 1px solid var(--border);
  background: rgba(7,9,13,.88);
}

.motion-console__chrome > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-3);
  opacity: .55;
}

.motion-console__chrome > span:first-child {
  background: var(--system-accent);
  opacity: .8;
}

.motion-console__chrome strong {
  margin-left: auto;
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 0.59rem;
  font-weight: 500;
  letter-spacing: 0.11em;
}

.motion-focus {
  position: relative;
  z-index: 2;
  min-height: 122px;
  margin: 18px;
  padding: 18px 20px;
  border: 1px solid color-mix(in srgb, var(--system-accent) 24%, var(--border));
  border-radius: 13px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--system-accent) 8%, #0b0f15), rgba(12,15,21,.88));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03);
}

.motion-focus > span {
  display: block;
  margin-bottom: 7px;
  color: var(--system-accent);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.motion-focus strong {
  display: block;
  margin-bottom: 6px;
  color: #fff;
  font-size: 1.02rem;
  font-weight: 620;
}

.motion-focus p {
  max-width: 60ch;
  color: var(--text-2);
  font-size: 0.78rem;
  line-height: 1.5;
}

.motion-flow {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 9px;
  padding: 0 18px 18px;
}

.motion-step {
  min-width: 0;
  min-height: 78px;
  padding: 11px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(14,18,25,.78);
  transition: border-color 420ms var(--ease), background 420ms var(--ease), transform 420ms var(--ease), box-shadow 420ms var(--ease), opacity 420ms var(--ease);
}

.motion-step > span {
  display: block;
  margin-bottom: 7px;
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: .08em;
  transition: color 420ms var(--ease);
}

.motion-step strong {
  display: block;
  color: #aeb6c5;
  font-size: 0.68rem;
  font-weight: 560;
  line-height: 1.3;
  transition: color 420ms var(--ease);
}

.motion-step.is-complete {
  border-color: color-mix(in srgb, var(--system-accent) 30%, var(--border));
  background: color-mix(in srgb, var(--system-accent) 5%, rgba(14,18,25,.9));
}

.motion-step.is-complete > span,
.motion-step.is-complete strong {
  color: color-mix(in srgb, var(--system-accent) 62%, var(--text-2));
}

.motion-step.is-active {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--system-accent) 78%, white 4%);
  background: color-mix(in srgb, var(--system-accent) 11%, #0d1218);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--system-accent) 12%, transparent),
    0 0 24px color-mix(in srgb, var(--system-accent) 12%, transparent);
}

.motion-step.is-active > span,
.motion-step.is-active strong {
  color: #fff;
}

.motion-step.is-active > span {
  color: var(--system-accent);
}

.motion-progress {
  position: absolute;
  z-index: 3;
  left: 18px;
  right: 18px;
  bottom: 15px;
  height: 2px;
  border-radius: 2px;
  background: rgba(255,255,255,.07);
}

.motion-progress__fill {
  position: absolute;
  inset: 0;
  transform-origin: left center;
  transform: scaleX(var(--motion-progress));
  border-radius: inherit;
  background: linear-gradient(90deg, color-mix(in srgb, var(--system-accent) 45%, transparent), var(--system-accent));
  box-shadow: 0 0 16px color-mix(in srgb, var(--system-accent) 30%, transparent);
  transition: transform 580ms var(--ease);
}

.motion-progress__dot {
  position: absolute;
  top: 50%;
  left: calc(var(--motion-progress) * 100%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: var(--system-accent);
  box-shadow: 0 0 16px color-mix(in srgb, var(--system-accent) 65%, transparent);
  transition: left 580ms var(--ease);
}

@keyframes showcaseScan {
  from { transform: translateY(-110px); }
  to { transform: translateY(450px); }
}

@keyframes showcaseGlow {
  from { transform: translate3d(-18%, -8%, 0) scale(.94); opacity: .6; }
  to { transform: translate3d(20%, 10%, 0) scale(1.08); opacity: 1; }
}

@media (max-width: 980px) {
  .system-showcase {
    grid-template-columns: 1fr;
  }

  .showcase__rail {
    display: flex;
    overflow-x: auto;
    padding-bottom: 7px;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
  }

  .showcase-tab {
    flex: 0 0 190px;
    scroll-snap-align: start;
  }

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

  .showcase-panel {
    grid-template-columns: 1fr;
  }

  .showcase-panel__copy {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .showcase-panel__copy .arrow-link {
    margin-top: 0;
  }
}

@media (max-width: 660px) {
  .showcase-tab {
    flex-basis: 168px;
  }

  .showcase-panel {
    min-height: 0;
    border-radius: 18px;
  }

  .showcase-panel__copy,
  .showcase-panel__visual {
    padding: 22px;
  }

  .motion-console {
    min-height: 570px;
  }

  .motion-console__chrome strong {
    max-width: 64%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .motion-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .motion-step {
    min-height: 70px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Ask Nader AI recruiter assistant */
body.has-open-assistant { overflow: hidden; }
.assistant-dialog { box-sizing: border-box; width: min(760px, calc(100% - 32px)); max-width: 760px; max-height: min(88vh, 760px); padding: 0; overflow: hidden; border: 1px solid rgba(159, 178, 205, .2); border-radius: 22px; background: #10141d; color: #eff4fb; box-shadow: 0 30px 90px rgba(0, 0, 0, .6); }
.assistant-dialog::backdrop { background: rgba(4, 7, 13, .78); backdrop-filter: blur(7px); }
.assistant-shell { display: grid; width: 100%; min-width: 0; grid-template-rows: auto auto auto minmax(220px, 1fr) auto; max-height: min(88vh, 760px); overflow-x: hidden; }
.assistant-header { display: flex; width: 100%; min-width: 0; box-sizing: border-box; align-items: flex-start; justify-content: space-between; gap: 1.25rem; padding: 1.45rem 1.6rem 1rem; border-bottom: 1px solid rgba(159, 178, 205, .14); }
.assistant-header > div { min-width: 0; flex: 1 1 0; }
.assistant-header .eyebrow { margin: 0 0 .35rem; color: #80d8f4; }
.assistant-header h2 { margin: 0; color: #fff; font-size: clamp(1.4rem, 3vw, 1.75rem); letter-spacing: -.035em; }
.assistant-header p:last-child { max-width: 100%; margin: .35rem 0 0; overflow-wrap: anywhere; color: #a8b3c3; font-size: .9rem; }
.assistant-close { display: grid; place-items: center; flex: 0 0 auto; width: 42px; height: 42px; border: 1px solid rgba(159, 178, 205, .24); border-radius: 50%; background: #171e29; color: #eaf2fc; font-size: 1.55rem; cursor: pointer; }
.assistant-close:hover { background: #222d3b; }
.assistant-controls { display: flex; width: 100%; min-width: 0; box-sizing: border-box; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .8rem; padding: .9rem 1.6rem; }
.assistant-depth { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; color: #a8b3c3; font-size: .8rem; }
.assistant-depth > span { margin-right: .25rem; }
.assistant-depth button, .assistant-brief { min-height: 36px; padding: .45rem .7rem; border: 1px solid rgba(159, 178, 205, .2); border-radius: 999px; background: #171e29; color: #dfe8f3; font: inherit; font-size: .8rem; cursor: pointer; }
.assistant-depth button.is-active { border-color: rgba(128, 216, 244, .55); background: rgba(48, 127, 159, .2); color: #b8edff; }
.assistant-brief { border-color: rgba(128, 216, 244, .42); color: #b8edff; font-size: .84rem; font-weight: 700; }
.assistant-brief span { margin-left: .3rem; color: #94a3b8; font-size: .72rem; font-weight: 500; }
.assistant-prompts { display: flex; width: 100%; min-width: 0; box-sizing: border-box; flex-wrap: wrap; gap: .5rem; padding: 0 1.6rem 1rem; }
.assistant-prompts button { min-width: 0; max-width: 100%; padding: .55rem .75rem; overflow-wrap: anywhere; border: 1px solid rgba(159, 178, 205, .18); border-radius: 12px; background: rgba(22, 29, 41, .8); color: #d4deea; font: inherit; font-size: .79rem; text-align: left; cursor: pointer; transition: border-color .16s ease, background .16s ease; }
.assistant-prompts button:hover { border-color: rgba(128, 216, 244, .5); background: rgba(31, 48, 63, .8); }
.assistant-log { width: 100%; min-width: 0; box-sizing: border-box; overflow-x: hidden; overflow-y: auto; min-height: 220px; max-height: 42vh; padding: .25rem 1.6rem 1rem; border-top: 1px solid rgba(159, 178, 205, .11); }
.assistant-message { width: fit-content; max-width: min(92%, 620px); margin: .85rem 0 0; padding: .85rem 1rem; border: 1px solid rgba(159, 178, 205, .12); border-radius: 15px 15px 15px 4px; background: #171e29; }
.assistant-message p { margin: 0; color: #e1e8f1; font-size: .93rem; line-height: 1.62; white-space: pre-wrap; }
.assistant-message--question { margin-left: auto; border-color: rgba(128, 216, 244, .24); border-radius: 15px 15px 4px 15px; background: rgba(30, 72, 91, .42); }
.assistant-message--answer { margin-right: auto; }
.assistant-references { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: .7rem; }
.assistant-references a { color: #8de0fb; font-size: .81rem; font-weight: 600; text-decoration: none; }
.assistant-references a:hover { color: #c1f1ff; text-decoration: underline; text-underline-offset: 3px; }
.assistant-form { display: flex; width: 100%; min-width: 0; box-sizing: border-box; gap: .65rem; padding: 1rem 1.6rem 1.35rem; border-top: 1px solid rgba(159, 178, 205, .14); background: #10141d; }
.assistant-form input { width: 100%; max-width: 100%; min-width: 0; flex: 1 1 auto; height: 48px; padding: 0 .95rem; border: 1px solid rgba(159, 178, 205, .24); border-radius: 12px; outline: none; background: #0b0f16; color: #f4f7fb; font: inherit; font-size: .92rem; }
.assistant-form input::placeholder { color: #7f8ca0; }
.assistant-form input:focus { border-color: #70cce9; box-shadow: 0 0 0 3px rgba(112, 204, 233, .14); }
.assistant-form .button { min-width: 74px; justify-content: center; border: 0; cursor: pointer; }
.nav-menu button.nav-menu__cta { display: inline-flex; align-items: center; min-height: 40px; border: 0; border-radius: 8px; font: inherit; font-size: .9rem; cursor: pointer; }
.nav-menu .nav-menu__resume { text-decoration: none; }
@media (max-width: 620px) {
  .assistant-dialog { width: 100%; max-width: none; max-height: 100dvh; height: 100dvh; border: 0; border-radius: 0; }
  .assistant-shell { max-height: 100dvh; height: 100%; grid-template-rows: auto auto auto minmax(180px, 1fr) auto; }
  .assistant-header { padding: 1.05rem 1rem .85rem; }
  .assistant-controls { padding: .75rem 1rem; }
  .assistant-prompts { gap: .4rem; padding: 0 1rem .8rem; }
  .assistant-prompts button { flex: 1 1 calc(50% - .4rem); font-size: .74rem; }
  .assistant-log { max-height: none; padding: .2rem 1rem .8rem; }
  .assistant-form { padding: .8rem 1rem calc(.9rem + env(safe-area-inset-bottom)); }
  .nav-menu button.nav-menu__cta { min-height: 46px; justify-content: center; margin-left: 0; margin-top: 6px; padding: 0 14px !important; }
}