/* =========================================================================
   Ibrahim Njie — Portfolio
   Design tokens + layout. No external fonts/CDNs by design (security &
   privacy: zero third-party requests except the optional contact form POST).
   ========================================================================= */

/* ---------- Design tokens --------------------------------------------
   Palette: deep navy + signal blue/cyan — an IT/OT & cybersecurity read
   (network graphs, control-room glow), committed to as the site's
   identity rather than following the visitor's OS preference. A lighter
   variant is still available via the manual toggle for anyone who wants
   it, but dark navy is the default in both senses of the word.
   ------------------------------------------------------------------- */
:root {
  /* Dark navy (default, unconditional) */
  --bg: #060910;
  --bg-soft: #0a0f1c;
  --surface: #0d1424;
  --surface-2: #0a1120;
  --border: #1c2a44;
  --border-strong: #2c4066;
  --text: #e8edf8;
  --text-muted: #93a0bf;
  --text-faint: #5b6884;
  --accent: #4c8dff;
  --accent-strong: #85b4ff;
  --accent-soft: #101d38;
  --accent-on: #04060c;
  --ink: #38bdf8;
  --ink-soft: #0b2436;
  --danger: #f87171;
  --success: #34d399;
  --focus-ring: #6ba4ff;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 26px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.55);
  --glow: 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent),
    0 0 24px color-mix(in srgb, var(--accent) 22%, transparent);

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-pill: 2px; /* kept as a token for compatibility; intentionally not a pill */

  --font-display: Charter, "Iowan Old Style", Georgia, "Noto Serif", "Liberation Serif",
    "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas,
    "Liberation Mono", monospace;

  --container: 1120px;
  --gap: clamp(1rem, 2vw, 1.75rem);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* Optional lighter variant — reachable only via the manual toggle, never
   the default, since the whole point is a committed dark identity. */
:root[data-theme="light"] {
  --bg: #f3f6fc;
  --bg-soft: #e7edf8;
  --surface: #ffffff;
  --surface-2: #fbfcfe;
  --border: #d6deed;
  --border-strong: #b7c3db;
  --text: #0b1220;
  --text-muted: #4a5670;
  --text-faint: #717d99;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: #dde8fc;
  --accent-on: #ffffff;
  --ink: #0891b2;
  --ink-soft: #dff4fa;
  --danger: #dc2626;
  --success: #059669;
  --focus-ring: #2563eb;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.12);
  --glow: 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
}

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

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

@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;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background-color: var(--bg);
  background-image: linear-gradient(color-mix(in srgb, var(--accent) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 6%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

:root[data-theme="light"] body {
  background-image: linear-gradient(color-mix(in srgb, var(--accent) 4%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 4%, transparent) 1px, transparent 1px);
}

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

a {
  color: inherit;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  text-wrap: balance;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

/* ---------- Accessibility helpers -------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: var(--accent-on);
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Layout helpers --------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

section {
  padding-block: clamp(3.5rem, 8vw, 6rem);
  scroll-margin-top: 5.5rem;
}

main {
  counter-reset: section;
}

.section-head {
  max-width: 640px;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
  counter-increment: section;
}

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.85rem;
}

.eyebrow::before {
  content: counter(section, decimal-leading-zero) "  —  ";
  color: var(--accent);
  font-weight: 600;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.section-head p {
  margin-top: 0.85rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.alt-bg {
  background: var(--bg-soft);
  border-block: 1px solid var(--border);
}

/* ---------- Buttons ------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: box-shadow var(--transition-fast), background var(--transition-fast),
    border-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-on);
  box-shadow: 0 0 20px color-mix(in srgb, var(--accent) 35%, transparent);
}

.btn-primary:hover {
  background: var(--accent-strong);
  box-shadow: 0 0 28px color-mix(in srgb, var(--accent) 55%, transparent);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  border-color: var(--text);
}

.btn svg {
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
}

.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-block {
  width: 100%;
}

/* ---------- Header / Nav ------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: 1.15rem;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.logo-mark {
  width: 2rem;
  height: 2rem;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 22%, transparent), transparent 75%);
  box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 40%, transparent),
    inset 0 0 10px color-mix(in srgb, var(--accent) 14%, transparent);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.logo:hover .logo-mark {
  box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 60%, transparent),
    inset 0 0 12px color-mix(in srgb, var(--accent) 22%, transparent);
  transform: translateY(-1px);
}

.nav-desktop {
  display: none;
}

.nav-desktop ul {
  display: flex;
  align-items: center;
  gap: 1.9rem;
}

.nav-desktop a {
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-muted);
  padding-block: 0.3rem;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.nav-desktop a:hover,
.nav-desktop a[aria-current="true"] {
  color: var(--text);
  border-color: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.icon-btn {
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

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

.icon-btn svg {
  width: 1.15rem;
  height: 1.15rem;
}

.lang-toggle {
  min-width: 3.1rem;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.icon-swap [data-icon="alt"] {
  display: none;
}

:root[data-theme="dark"] .icon-swap [data-icon="default"] {
  display: none;
}
:root[data-theme="dark"] .icon-swap [data-icon="alt"] {
  display: block;
}

.nav-toggle {
  display: grid;
}

@media (min-width: 900px) {
  .nav-desktop {
    display: block;
  }
  .nav-toggle {
    display: none;
  }
}

/* Mobile nav panel */
.nav-mobile {
  border-top: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-base) ease;
}

.nav-mobile[data-open="true"] {
  max-height: 24rem;
}

.nav-mobile ul {
  padding: 1rem clamp(1.25rem, 4vw, 2.5rem) 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-mobile a {
  display: block;
  padding: 0.75rem 0.25rem;
  text-decoration: none;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}

@media (min-width: 900px) {
  .nav-mobile {
    display: none;
  }
}

/* ---------- Hero ---------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
  background: radial-gradient(120% 100% at 15% 0%, #0b1730 0%, var(--bg) 55%);
}

:root[data-theme="light"] .hero {
  background: radial-gradient(120% 100% at 15% 0%, #e4ecfb 0%, var(--bg) 60%);
}

#network-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.8;
}

:root[data-theme="light"] #network-canvas {
  opacity: 0.35;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, transparent 45%, var(--bg) 96%),
    linear-gradient(90deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 55%, transparent) 38%, transparent 62%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(2rem, 6vw, 3rem);
  align-items: center;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.45rem 0.8rem 0.45rem 0.65rem;
  margin-bottom: 1.75rem;
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--surface) 65%, transparent);
  backdrop-filter: blur(6px);
  border-radius: var(--radius-pill);
}

.hero-badge .dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 25%, transparent), 0 0 10px var(--success);
}

.hero h1 {
  font-size: clamp(2.8rem, 7.5vw, 5.2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 0.98;
  text-shadow: 0 0 40px color-mix(in srgb, var(--accent) 30%, transparent);
}

.hero .role {
  margin-top: 0.75rem;
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  font-weight: 500;
  font-style: italic;
  font-family: var(--font-display);
  color: var(--ink);
}

.hero .tagline {
  margin-top: 1.25rem;
  max-width: 46ch;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.hero-cta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero-meta {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem 1.75rem;
  color: var(--text-faint);
  font-size: 0.9rem;
}

.hero-meta li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.hero-meta svg {
  width: 1rem;
  height: 1rem;
  color: var(--accent);
}

/* Hero visual panel: a single clean LinkedIn callout card — no offset
   double-frame, just one confident surface with the platform's own blue
   as a deliberate, meaningful accent (this card only). */
:root {
  --linkedin-blue: #0a66c2;
  --linkedin-blue-soft: rgba(10, 102, 194, 0.14);
}

.hero-visual-wrap {
  max-width: 360px;
  margin-inline: auto;
}

.hero-visual {
  position: relative;
  aspect-ratio: 3 / 4;
  background: color-mix(in srgb, var(--surface-2) 92%, transparent);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.hero-linkedin {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  text-decoration: none;
  color: var(--text);
  transition: border-color var(--transition-fast), background var(--transition-fast),
    box-shadow var(--transition-fast);
}

.hero-linkedin:hover {
  border-color: var(--linkedin-blue);
  background: var(--linkedin-blue-soft);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--linkedin-blue) 45%, transparent),
    0 0 26px color-mix(in srgb, var(--linkedin-blue) 30%, transparent);
}

.hero-linkedin-top {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.hero-linkedin-icon-wrap {
  width: 2.4rem;
  height: 2.4rem;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--linkedin-blue-soft);
  color: var(--linkedin-blue);
}

.hero-linkedin-icon {
  width: 1.15rem;
  height: 1.15rem;
}

.hero-linkedin-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.hero-linkedin-name {
  margin-top: 1.25rem;
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hero-linkedin-sub {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 22ch;
}

.hero-linkedin-cta {
  margin-top: auto;
  align-self: flex-start;
  padding-top: 1.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--linkedin-blue);
}

.hero-linkedin-cta svg {
  width: 1rem;
  height: 1rem;
}

/* ---------- Stats strip ---------------------------------------------- */
.stats-section {
  padding-block: 0 clamp(3rem, 6vw, 4rem);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  overflow: hidden;
}

@media (min-width: 700px) {
  .stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat {
  background: var(--surface);
  padding: 1.5rem 1.25rem;
  text-align: left;
}

.stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}

.stat span {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.83rem;
  color: var(--text-muted);
}

/* ---------- About ------------------------------------------------------- */
.about-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
}

@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.about-body p {
  font-size: 1.08rem;
  color: var(--text-muted);
}

.about-body p + p {
  margin-top: 1rem;
}

.about-body--spaced {
  margin-top: 1.25rem;
}

.privacy-note {
  margin-top: 1.75rem;
  display: flex;
  gap: 0.75rem;
  padding: 1rem 1.15rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  color: var(--text-faint);
}

.privacy-note svg {
  width: 1.3rem;
  height: 1.3rem;
  color: var(--accent);
  flex-shrink: 0;
}

/* A deliberate break from the grid-of-cards rhythm: one plain, confident
   statement instead of another bordered box. */
.about-quote {
  margin: clamp(3rem, 7vw, 4.5rem) 0 0;
  padding-left: clamp(1.25rem, 3vw, 2rem);
  border-left: 3px solid var(--accent);
  max-width: 62ch;
}

.about-quote p {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.05rem, 1.3vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-muted);
}

.detail-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.detail-list li {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}

.detail-list li:first-child {
  border-top: none;
  padding-top: 0;
}

.detail-list .icon {
  width: 1.3rem;
  height: 1.3rem;
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 0.2rem;
}

.detail-list .icon svg {
  width: 100%;
  height: 100%;
}

.detail-list h3 {
  font-size: 0.95rem;
  font-weight: 700;
}

.detail-list p {
  margin-top: 0.15rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ---------- Skills grid ------------------------------------------------ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--gap);
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.4rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.skill-card:hover {
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.skill-card .icon {
  width: 1.4rem;
  height: 1.4rem;
  color: var(--accent);
  display: block;
  margin-bottom: 1rem;
}

.skill-card .icon svg {
  width: 100%;
  height: 100%;
}

.skill-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
}

.skill-card p {
  margin-top: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ---------- Timeline (experience) --------------------------------------- */
.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0.6rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: var(--border);
}

@media (min-width: 700px) {
  .timeline::before {
    left: 1.15rem;
  }
}

.timeline-item {
  position: relative;
  padding-left: 2.4rem;
}

@media (min-width: 700px) {
  .timeline-item {
    padding-left: 3.4rem;
  }
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.45rem;
  width: 0.9rem;
  height: 0.9rem;
  background: var(--surface);
  border: 2px solid var(--accent);
  transform: rotate(45deg);
}

@media (min-width: 700px) {
  .timeline-item::before {
    width: 1.1rem;
    height: 1.1rem;
  }
}

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

.timeline-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  margin-bottom: 0.35rem;
}

.timeline-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
}

.timeline-card .company {
  color: var(--accent);
  font-weight: 500;
  font-style: italic;
  font-family: var(--font-display);
}

.timeline-card .dates {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-faint);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.timeline-card .note {
  font-size: 0.85rem;
  color: var(--text-faint);
  font-style: italic;
  margin-bottom: 0.6rem;
}

.timeline-card ul {
  margin-top: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.timeline-card li {
  display: flex;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.timeline-card li svg {
  width: 1.1rem;
  height: 1.1rem;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

/* ---------- Projects ----------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--gap);
  counter-reset: project;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 2px solid var(--border-strong);
  padding: clamp(1.4rem, 3vw, 1.9rem);
  counter-increment: project;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.project-card:hover {
  border-color: var(--accent);
  border-top-color: var(--accent);
  box-shadow: var(--glow);
}

.project-tag {
  align-self: flex-start;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1rem;
}

.project-tag::before {
  content: "File " counter(project, decimal-leading-zero);
  color: var(--accent);
  font-weight: 600;
}

.project-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.3;
}

.project-body {
  margin-top: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.project-body p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.project-body strong {
  color: var(--text);
}

.chip-row {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.chip {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ---------- Certifications / education ----------------------------------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--gap);
}

.cert-card {
  display: flex;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.4rem;
}

.cert-card .icon {
  width: 1.6rem;
  height: 1.6rem;
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 0.15rem;
}

.cert-card .icon svg {
  width: 100%;
  height: 100%;
}

.cert-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

.cert-card .issuer {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 700;
  margin-top: 0.15rem;
}

.cert-card p {
  margin-top: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.cert-card a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.6rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}

.cert-card a:hover {
  text-decoration: underline;
}

/* ---------- Tools --------------------------------------------------------- */
.tools-groups {
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .tools-groups {
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  }
}

.tools-group h3 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  margin-bottom: 0.9rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

.tools-group .chip-row {
  margin-top: 0;
}

.tools-group .chip {
  background: var(--surface);
}

/* ---------- Contact -------------------------------------------------------- */
.contact-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

@media (min-width: 960px) {
  .contact-grid {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--border);
  text-decoration: none;
  color: var(--text);
  transition: padding-left var(--transition-fast), color var(--transition-fast);
}

.contact-cards a.contact-card:last-child,
.contact-cards .contact-card--static {
  border-bottom: 1px solid var(--border);
}

.contact-card:hover {
  padding-left: 0.5rem;
  color: var(--accent);
}

.contact-card--static {
  cursor: default;
}

.contact-card--static:hover {
  padding-left: 0;
  color: var(--text);
}

.contact-card .icon {
  width: 1.4rem;
  height: 1.4rem;
  flex-shrink: 0;
  color: var(--accent);
}

.contact-card .icon svg {
  width: 100%;
  height: 100%;
}

.contact-card .label {
  font-size: 0.78rem;
  color: var(--text-faint);
  font-weight: 600;
}

.contact-card .value {
  font-weight: 700;
  font-size: 0.98rem;
  word-break: break-word;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.25rem);
}

.form-row {
  margin-bottom: 1.15rem;
}

.form-row label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 0.45rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.form-row textarea {
  resize: vertical;
  min-height: 130px;
}

.form-hint {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-faint);
}

.form-status {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}

.form-status[data-state="success"] {
  display: block;
  background: color-mix(in srgb, var(--success) 15%, transparent);
  color: var(--success);
}

.form-status[data-state="error"] {
  display: block;
  background: color-mix(in srgb, var(--danger) 15%, transparent);
  color: var(--danger);
}

/* honeypot: hidden from sighted users AND kept out of the tab order */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Footer ---------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2.5rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-faint);
}

.footer-inner nav ul {
  display: flex;
  gap: 1.25rem;
}

.footer-inner nav a {
  text-decoration: none;
  color: var(--text-faint);
}

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

/* ---------- Reveal-on-scroll --------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Print ---------------------------------------------------------- */
@media print {
  .site-header,
  .nav-mobile,
  .contact-form,
  .hero-visual,
  .icon-btn {
    display: none !important;
  }
}