/* ==========================================================================
   Design Tokens — Dillix / Dylan Lewis
   Palette: Navy (primary) · White (secondary) · Soft Blue (accent) · Light Grey (neutral)
   Type: Plus Jakarta Sans (display) · Inter (body) · IBM Plex Mono (flight data / utility)
   ========================================================================== */

:root {
  /* Colour */
  --color-navy-900: #0a1d33;
  --color-navy-800: #0d2b4e;
  --color-navy-700: #123a67;
  --color-ink: #101d30;
  --color-muted: #56698a;
  --color-muted-light: #7c8ba6;
  --color-white: #ffffff;
  --color-grey-50: #f6f8fa;
  --color-grey-100: #eef1f5;
  --color-grey-200: #e2e7ee;
  --color-border: #dfe5ed;
  --color-accent: #3f7cb8;
  --color-accent-600: #316395;
  --color-accent-tint: #eaf3fb;
  --color-accent-tint-2: #dcebf7;
  --color-success: #2a8f6d;
  --color-focus: #1d63a3;

  /* Elevation */
  --shadow-sm: 0 1px 2px rgba(10, 29, 51, 0.06);
  --shadow-md: 0 8px 24px -8px rgba(10, 29, 51, 0.16);
  --shadow-lg: 0 24px 48px -16px rgba(10, 29, 51, 0.22);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Type */
  --font-display: "Plus Jakarta Sans", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --fs-2xs: 0.75rem;
  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1.0625rem;
  --fs-md: 1.25rem;
  --fs-lg: 1.75rem;
  --fs-xl: 2.5rem;
  --fs-2xl: 3.25rem;
  --fs-3xl: 4.25rem;

  --lh-tight: 1.1;
  --lh-snug: 1.3;
  --lh-normal: 1.6;
  --lh-relaxed: 1.75;

  /* Spacing scale (rem) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 6.5rem;
  --space-10: 9rem;

  /* Layout */
  --container-max: 1180px;
  --container-pad: clamp(1.25rem, 4vw, 3rem);
  --nav-height: 76px;
  --route-rail-width: 34px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-sm: 220ms;
  --dur-md: 420ms;
  --dur-lg: 720ms;
}

@media (max-width: 780px) {
  :root {
    --fs-3xl: 2.75rem;
    --fs-2xl: 2.25rem;
    --fs-xl: 1.75rem;
    --fs-lg: 1.375rem;
    --nav-height: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-sm: 1ms;
    --dur-md: 1ms;
    --dur-lg: 1ms;
  }
}
/* ==========================================================================
   Base — reset, typography, utilities, accessibility
   ========================================================================== */

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-ink);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  color: var(--color-navy-900);
  line-height: var(--lh-tight);
  font-weight: 700;
  letter-spacing: -0.01em;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input,
textarea,
button {
  font-family: inherit;
  font-size: inherit;
}

/* Focus states — always visible, never suppressed */
:focus-visible {
  outline: 2.5px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  background: var(--color-navy-900);
  color: var(--color-white);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: 2000;
  font-weight: 600;
}

.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

/* Screen-reader only */
.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;
}

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

.section {
  padding-block: var(--space-9);
  scroll-margin-top: var(--nav-height);
  position: relative;
}

.section--tint {
  background: var(--color-grey-50);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-7);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-600);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1.5px;
  background: var(--color-accent);
  display: inline-block;
}

.section-title {
  font-size: var(--fs-2xl);
}

.section-lede {
  margin-top: var(--space-4);
  color: var(--color-muted);
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  max-width: 60ch;
}

.route-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-muted-light);
  margin-block: var(--space-8);
}

.route-divider::before,
.route-divider::after {
  content: "";
  flex: 1;
  height: 0;
  border-top: 1.5px dashed var(--color-border);
}

.route-divider__label {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.text-mono {
  font-family: var(--font-mono);
}

.visually-hidden-focusable:not(:focus):not(:focus-within) {
  position: absolute;
  clip: rect(0 0 0 0);
}
/* ==========================================================================
   Navigation
   ========================================================================== */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-sm) var(--ease-out), box-shadow var(--dur-sm) var(--ease-out);
}

.site-nav.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-nav__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-navy-900);
}

.brand__mark {
  color: var(--color-accent);
}

.brand__suffix {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fs-xs);
  color: var(--color-muted);
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links a {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-ink);
  padding-block: var(--space-2);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-sm) var(--ease-out);
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
  transform: scaleX(1);
}

.nav-links a.is-active {
  color: var(--color-accent-600);
}

.nav-cta {
  display: none;
}

@media (min-width: 981px) {
  .nav-cta {
    display: inline-flex;
  }
}

.nav-toggle {
  display: none;
  border: none;
  background: none;
  padding: var(--space-2);
  color: var(--color-navy-900);
}

.nav-toggle svg {
  width: 26px;
  height: 26px;
}

@media (max-width: 980px) {
  .nav-links {
    position: fixed;
    inset: var(--nav-height) 0 0 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-6) var(--container-pad);
    gap: var(--space-5);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur-sm) var(--ease-out), transform var(--dur-sm) var(--ease-out), visibility var(--dur-sm);
  }

  .nav-links a {
    font-size: var(--fs-md);
  }

  .site-nav.is-menu-open .nav-links {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-cta {
    display: none;
  }
}

/* ==========================================================================
   Signature element — Flight Progress rail
   A vertical dashed route line that tracks scroll position through the
   page, with a small aircraft marker travelling along it, echoing a
   flight-progress display. Hidden on touch/narrow viewports in favour
   of a slim top progress bar.
   ========================================================================== */

.flight-rail {
  position: fixed;
  top: calc(var(--nav-height) + 24px);
  bottom: 24px;
  left: 22px;
  width: var(--route-rail-width);
  z-index: 900;
  display: none;
  pointer-events: none;
}

@media (min-width: 1240px) {
  .flight-rail {
    display: block;
  }
}

.flight-rail__line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 0;
  border-left: 1.5px dashed var(--color-border);
  transform: translateX(-50%);
}

.flight-rail__progress {
  position: absolute;
  left: 50%;
  top: 0;
  width: 0;
  border-left: 1.5px solid var(--color-accent);
  transform: translateX(-50%);
  height: 0%;
  transition: height 80ms linear;
}

.flight-rail__marker {
  position: absolute;
  left: 50%;
  top: 0%;
  width: 22px;
  height: 22px;
  margin-left: -11px;
  margin-top: -11px;
  color: var(--color-accent-600);
  transition: top 80ms linear;
  filter: drop-shadow(0 2px 4px rgba(10, 29, 51, 0.25));
}

.flight-rail__marker svg {
  width: 100%;
  height: 100%;
  transform: rotate(90deg);
}

/* Mobile fallback: slim top progress bar */
.top-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--color-accent);
  z-index: 1100;
  transition: width 80ms linear;
}

@media (min-width: 1240px) {
  .top-progress {
    display: none;
  }
}
/* ==========================================================================
   Components — buttons, cards, badges, forms
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: var(--fs-sm);
  padding: 0.85em 1.6em;
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  transition: transform var(--dur-sm) var(--ease-out), box-shadow var(--dur-sm) var(--ease-out),
    background var(--dur-sm) var(--ease-out), border-color var(--dur-sm) var(--ease-out), color var(--dur-sm) var(--ease-out);
}

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

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--color-navy-900);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-navy-700);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-navy-900);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-600);
  box-shadow: var(--shadow-sm);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-accent:hover {
  background: var(--color-accent-600);
  box-shadow: var(--shadow-md);
}

.btn svg {
  width: 1.1em;
  height: 1.1em;
}

/* Card shell */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--dur-md) var(--ease-out), box-shadow var(--dur-md) var(--ease-out), border-color var(--dur-md) var(--ease-out);
}

.card--hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-tint-2);
}

.card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-accent-tint);
  color: var(--color-accent-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

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

.card__title {
  font-size: var(--fs-md);
  margin-bottom: var(--space-2);
}

.card__text {
  color: var(--color-muted);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
}

/* Badge / tag */
.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent-600);
  background: var(--color-accent-tint);
  padding: 0.3em 0.75em;
  border-radius: var(--radius-pill);
  font-weight: 600;
}

/* Grid helpers */
.grid {
  display: grid;
  gap: var(--space-5);
}

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

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

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

@media (max-width: 980px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Form */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-field label {
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--color-navy-900);
  letter-spacing: 0.02em;
}

.form-field input,
.form-field textarea {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.9em 1em;
  background: var(--color-white);
  color: var(--color-ink);
  transition: border-color var(--dur-sm) var(--ease-out), box-shadow var(--dur-sm) var(--ease-out);
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-tint);
  outline: none;
}

.form-field .field-error {
  font-size: var(--fs-2xs);
  color: #b3403c;
  min-height: 1em;
}

.form-field[data-invalid="true"] input,
.form-field[data-invalid="true"] textarea {
  border-color: #b3403c;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  font-size: var(--fs-sm);
  font-weight: 600;
  display: none;
}

.form-status.is-success {
  display: block;
  background: #eaf6f1;
  color: var(--color-success);
}

.form-status.is-error {
  display: block;
  background: #fbeceb;
  color: #b3403c;
}

/* Reveal-on-scroll animation primitive */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-lg) var(--ease-out), transform var(--dur-lg) var(--ease-out);
}

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

.reveal-stagger > * {
  transition-delay: calc(var(--stagger-index, 0) * 70ms);
}
/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: calc(100svh - var(--nav-height));
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-grey-50) 100%);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.9;
}

.hero__bg svg {
  width: 100%;
  height: 100%;
}

.hero__route-path {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.5;
  stroke-dasharray: 8 8;
  opacity: 0.55;
  stroke-dashoffset: 1000;
  animation: dash-draw 3.6s var(--ease-out) forwards 0.2s;
}

.hero__route-dot {
  fill: var(--color-accent-600);
  opacity: 0;
  animation: dot-appear 0.4s ease forwards 3.4s;
}

@keyframes dash-draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes dot-appear {
  to {
    opacity: 1;
  }
}

.hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-block: var(--space-9);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-accent-600);
  background: var(--color-accent-tint);
  padding: 0.5em 1em;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-5);
  letter-spacing: 0.04em;
}

.hero__eyebrow svg {
  width: 14px;
  height: 14px;
}

.hero h1 {
  font-size: var(--fs-3xl);
  max-width: 16ch;
}

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

.hero__tagline {
  margin-top: var(--space-5);
  font-size: var(--fs-md);
  color: var(--color-navy-700);
  font-weight: 600;
  max-width: 40ch;
}

.hero__intro {
  margin-top: var(--space-4);
  color: var(--color-muted);
  font-size: var(--fs-base);
  max-width: 56ch;
  line-height: var(--lh-relaxed);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-7);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px dashed var(--color-border);
  max-width: 620px;
}

.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.2em;
}

.hero__meta-value {
  font-family: var(--font-mono);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--color-navy-900);
}

.hero__meta-label {
  font-size: var(--fs-2xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted-light);
}

@media (max-width: 620px) {
  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }
}
/* ==========================================================================
   About
   ========================================================================== */

.about__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: start;
}

@media (max-width: 900px) {
  .about__grid {
    grid-template-columns: 1fr;
  }
}

.about__lede {
  font-size: var(--fs-md);
  color: var(--color-navy-800);
  line-height: var(--lh-relaxed);
  font-weight: 500;
}

.about__body p {
  margin-top: var(--space-5);
  color: var(--color-muted);
  line-height: var(--lh-relaxed);
}

.about__body strong {
  color: var(--color-navy-900);
}

.about__paths {
  background: var(--color-grey-50);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.about__paths h3 {
  font-size: var(--fs-base);
  margin-bottom: var(--space-1);
}

.about__paths .card__text {
  margin-bottom: var(--space-5);
}

.path-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.path-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.path-item__index {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  color: var(--color-accent-600);
  font-weight: 700;
  padding-top: 0.2em;
}

.path-item h4 {
  font-size: var(--fs-sm);
  margin-bottom: 0.2em;
}

.path-item p {
  font-size: var(--fs-xs);
  color: var(--color-muted);
  line-height: var(--lh-normal);
}

.interest-grid {
  margin-top: var(--space-8);
}
/* ==========================================================================
   Journey — vertical timeline
   ========================================================================== */

.timeline {
  position: relative;
  max-width: 780px;
  margin-inline: auto;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 108px;
  top: 0;
  bottom: 0;
  width: 0;
  border-left: 1.5px dashed var(--color-border);
}

@media (max-width: 640px) {
  .timeline::before {
    left: 20px;
  }
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 88px 40px 1fr;
  gap: var(--space-4);
  padding-bottom: var(--space-7);
}

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

@media (max-width: 640px) {
  .timeline-item {
    grid-template-columns: 0px 40px 1fr;
  }
  .timeline-item__year {
    display: none;
  }
}

.timeline-item__year {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-navy-900);
  font-size: var(--fs-sm);
  text-align: right;
  padding-top: 0.15em;
}

.timeline-item__node {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.timeline-item__dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2.5px solid var(--color-accent);
  margin-top: 0.35em;
  transition: background var(--dur-sm) var(--ease-out), transform var(--dur-sm) var(--ease-out);
}

.timeline-item.is-visible .timeline-item__dot {
  background: var(--color-accent);
  transform: scale(1.1);
}

.timeline-item__content {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.timeline-item__year-mobile {
  display: none;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-accent-600);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

@media (max-width: 640px) {
  .timeline-item__year-mobile {
    display: block;
  }
}

.timeline-item__title {
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--color-navy-900);
  margin-bottom: var(--space-2);
}

.timeline-item__desc {
  color: var(--color-muted);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-3);
}
/* ==========================================================================
   Skills
   ========================================================================== */

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

.skill-card__top {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.skill-card__icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-tint);
  color: var(--color-accent-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.skill-card__icon svg {
  width: 19px;
  height: 19px;
}

.skill-card__name {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-navy-900);
}

.skill-card__status {
  font-size: var(--fs-2xs);
  color: var(--color-accent-600);
  font-family: var(--font-mono);
}

.skill-card__bar-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-grey-200);
  overflow: hidden;
}

.skill-card__bar-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-600) 100%);
  width: 0%;
  transition: width 1.1s var(--ease-out);
}

.skill-card__value {
  align-self: flex-end;
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  color: var(--color-muted-light);
}
/* ==========================================================================
   Aviation — stats, aircraft, airlines, airports
   ========================================================================== */

.stat-card {
  text-align: left;
  padding: var(--space-5);
}

.stat-card__value {
  font-family: var(--font-mono);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-navy-900);
  display: flex;
  align-items: baseline;
  gap: 0.15em;
}

.stat-card__suffix {
  font-size: var(--fs-md);
  color: var(--color-accent-600);
}

.stat-card__label {
  margin-top: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.aviation__panels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-8);
}

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

.data-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.data-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.data-panel__title {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-navy-900);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.data-panel__title svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
}

.data-panel__count {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  color: var(--color-muted-light);
}

.data-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-top: 1px solid var(--color-grey-100);
  font-size: var(--fs-sm);
}

.data-row:first-of-type {
  border-top: none;
}

.data-row__primary {
  font-weight: 600;
  color: var(--color-navy-900);
}

.data-row__secondary {
  color: var(--color-muted);
  font-size: var(--fs-xs);
}

.data-row__code {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  color: var(--color-accent-600);
  background: var(--color-accent-tint);
  padding: 0.2em 0.6em;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.aviation__extra {
  margin-top: var(--space-5);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

@media (max-width: 780px) {
  .aviation__extra {
    grid-template-columns: 1fr;
  }
}
/* ==========================================================================
   Interactive world map
   ========================================================================== */

.map-panel {
  background: var(--color-navy-900);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
}

.map-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.map-panel__title {
  color: var(--color-white);
  font-size: var(--fs-md);
}

.map-panel__legend {
  display: flex;
  gap: var(--space-4);
  font-size: var(--fs-2xs);
  color: rgba(255, 255, 255, 0.7);
}

.map-panel__legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}

.map-panel__legend i {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

.legend-visited i {
  background: var(--color-accent);
}

.legend-unvisited i {
  background: rgba(255, 255, 255, 0.18);
}

.map-wrap {
  position: relative;
  width: 100%;
}

.world-map-svg {
  width: 100%;
  height: auto;
  display: block;
}

.world-map-svg .country {
  fill: rgba(255, 255, 255, 0.1);
  stroke: rgba(10, 29, 51, 0.6);
  stroke-width: 0.4;
  transition: fill var(--dur-sm) var(--ease-out);
}

.world-map-svg .country.is-visited {
  fill: var(--color-accent);
  cursor: pointer;
}

.world-map-svg .country.is-visited:hover,
.world-map-svg .country.is-visited:focus-visible {
  fill: #6fa8de;
}

.world-map-svg .country.is-home {
  fill: var(--color-white);
}

.route-line {
  fill: none;
  stroke: rgba(255, 255, 255, 0.55);
  stroke-width: 1;
  stroke-dasharray: 3 4;
  opacity: 0;
  animation: route-fade-in 0.6s ease forwards;
}

@keyframes route-fade-in {
  to {
    opacity: 1;
  }
}

.route-marker {
  fill: var(--color-white);
}

.map-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--color-white);
  color: var(--color-ink);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-xs);
  box-shadow: var(--shadow-lg);
  min-width: 170px;
  opacity: 0;
  transform: translate(-50%, -100%) translateY(-10px);
  transition: opacity var(--dur-sm) var(--ease-out);
  z-index: 20;
}

.map-tooltip.is-visible {
  opacity: 1;
}

.map-tooltip__name {
  font-weight: 700;
  color: var(--color-navy-900);
  margin-bottom: 0.3em;
}

.map-tooltip__row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  color: var(--color-muted);
}

.map-panel__note {
  margin-top: var(--space-4);
  font-size: var(--fs-2xs);
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--font-mono);
}
/* ==========================================================================
   YouTube
   ========================================================================== */

.youtube-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (max-width: 820px) {
  .youtube-card {
    grid-template-columns: 1fr;
  }
}

.youtube-card__media {
  position: relative;
  background: var(--color-navy-900);
  aspect-ratio: 16/9;
}

.youtube-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--dur-md) var(--ease-out);
}

.youtube-card__media img.is-loaded {
  opacity: 1;
}

.youtube-card__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.youtube-card__play svg {
  width: 56px;
  height: 56px;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.35));
}

.youtube-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
}

.youtube-card__label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: #d92c20;
  font-weight: 700;
  font-size: var(--fs-xs);
  margin-bottom: var(--space-4);
}

.youtube-card__label svg {
  width: 18px;
  height: 18px;
}

.youtube-card__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
}

.youtube-card__desc {
  color: var(--color-muted);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.youtube-card__date {
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  color: var(--color-muted-light);
  margin-top: var(--space-4);
  margin-bottom: var(--space-5);
}

.youtube-card__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.youtube-card__skeleton {
  animation: pulse 1.6s ease-in-out infinite;
  background: linear-gradient(90deg, var(--color-grey-100) 25%, var(--color-grey-200) 37%, var(--color-grey-100) 63%);
  background-size: 400% 100%;
  border-radius: var(--radius-sm);
}

@keyframes pulse {
  0% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0 50%;
  }
}

/* ==========================================================================
   Projects
   ========================================================================== */

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
  margin-bottom: var(--space-5);
}

.project-card__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--color-accent-600);
}

.project-card__link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--dur-sm) var(--ease-out);
}

.project-card__link:hover svg {
  transform: translate(3px, -3px);
}

/* ==========================================================================
   Goals
   ========================================================================== */

.goal-card {
  display: flex;
  gap: var(--space-4);
}

.goal-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-navy-900);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.goal-card__icon svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

@media (max-width: 900px) {
  .contact__grid {
    grid-template-columns: 1fr;
  }
}

.contact-info__item {
  display: flex;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.contact-info__item:first-child {
  border-top: none;
}

.contact-info__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-accent-tint);
  color: var(--color-accent-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info__icon svg {
  width: 18px;
  height: 18px;
}

.contact-info__label {
  font-size: var(--fs-xs);
  color: var(--color-muted-light);
  margin-bottom: 0.2em;
}

.contact-info__value {
  font-weight: 700;
  color: var(--color-navy-900);
}

.contact-info__value a:hover {
  color: var(--color-accent-600);
}

.social-row {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.social-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy-900);
  transition: all var(--dur-sm) var(--ease-out);
}

.social-btn:hover {
  background: var(--color-navy-900);
  color: var(--color-white);
  border-color: var(--color-navy-900);
  transform: translateY(-3px);
}

.social-btn svg {
  width: 19px;
  height: 19px;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-navy-900);
  color: rgba(255, 255, 255, 0.75);
  padding-block: var(--space-8) var(--space-6);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-7);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

@media (max-width: 780px) {
  .footer__top {
    grid-template-columns: 1fr;
  }
}

.footer__brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.footer__tagline {
  font-size: var(--fs-sm);
  max-width: 34ch;
  line-height: var(--lh-relaxed);
}

.footer__heading {
  color: var(--color-white);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
  font-weight: 700;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--fs-sm);
}

.footer__links a:hover {
  color: var(--color-white);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-6);
  font-size: var(--fs-xs);
}

.footer__bottom .social-btn {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  width: 38px;
  height: 38px;
}

.footer__bottom .social-row {
  margin-top: 0;
}