/*
 * Rojan Dumaru — portfolio styles.
 *
 * Hand-written CSS with no build step: Django serves this file directly and
 * WhiteNoise compresses and fingerprints it in production. Mobile-first, with
 * min-width media queries for larger screens.
 *
 * Contents
 *   1. Tokens and themes      7. Experience
 *   2. Reset and base         8. Education and certifications
 *   3. Layout                 9. Contact and forms
 *   4. Navigation            10. Footer
 *   5. Hero                  11. Project detail
 *   6. Projects              12. Motion
 */

/* ------------------------------------------------------------------ *
 * 1. Tokens and themes
 * ------------------------------------------------------------------ */

:root {
  --bg: #09090b;
  --bg-elevated: #111113;
  --surface: #18181b;
  --surface-hover: #202024;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --text-subtle: #71717a;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --accent: #8b5cf6;
  --accent-solid: #7c3aed;
  --accent-contrast: #ffffff;
  --accent-soft: rgba(139, 92, 246, 0.12);
  --grid-line: rgba(255, 255, 255, 0.028);
  --success: #34d399;
  --danger: #f87171;

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo,
    Consolas, "Liberation Mono", monospace;

  --measure: 72rem;
  --radius: 12px;
  --radius-sm: 8px;

  color-scheme: dark;
}

.light {
  --bg: #ffffff;
  --bg-elevated: #fafafa;
  --surface: #f4f4f5;
  --surface-hover: #ececee;
  --text: #09090b;
  --text-muted: #52525b;
  --text-subtle: #71717a;
  --border: rgba(9, 9, 11, 0.1);
  --border-strong: rgba(9, 9, 11, 0.18);
  --accent: #6d28d9;
  --accent-solid: #6d28d9;
  --accent-contrast: #ffffff;
  --accent-soft: rgba(109, 40, 217, 0.08);
  --grid-line: rgba(9, 9, 11, 0.04);
  --success: #059669;
  --danger: #dc2626;

  color-scheme: light;
}

/* ------------------------------------------------------------------ *
 * 2. Reset and base
 * ------------------------------------------------------------------ */

*,
*::before,
*::after {
  box-sizing: border-box;
  border: 0 solid var(--border);
}

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  /* Sticky nav height plus breathing room, so anchors clear the header. */
  scroll-padding-top: 6rem;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Nothing on the page may scroll the body sideways. */
  overflow-x: hidden;
}

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

/* The rule above is more specific than the UA's `[hidden] { display: none }`,
   so without this an svg with the hidden attribute would still render. */
[hidden] {
  display: none !important;
}

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

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

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

h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

::selection {
  background-color: var(--accent-soft);
  color: var(--text);
}

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

:focus:not(:focus-visible) {
  outline: none;
}

.icon {
  width: 1rem;
  height: 1rem;
  flex: none;
}

.icon--sm {
  width: 0.875rem;
  height: 0.875rem;
}

.icon--lg {
  width: 2.25rem;
  height: 2.25rem;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 100;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  padding: 0.6rem 1rem;
  background: var(--accent-solid);
  color: var(--accent-contrast);
  border-radius: 999px;
  font-size: 0.875rem;
}

/* ------------------------------------------------------------------ *
 * 3. Layout
 * ------------------------------------------------------------------ */

.container {
  width: 100%;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  /* Anchor offset comes from `scroll-padding-top` on <html>; adding
     scroll-margin here as well would double it. */
  padding-block: 5rem;
}

.section__label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.section__label .num {
  color: var(--accent);
}

.section__label .dash {
  width: 1.5rem;
  height: 1px;
  background: var(--border-strong);
}

.section__title {
  margin-top: 1.25rem;
  max-width: 48rem;
  font-size: clamp(1.875rem, 5vw, 3rem);
}

.section__intro {
  margin-top: 1.25rem;
  max-width: 42rem;
  color: var(--text-muted);
  font-size: 1rem;
}

.section__body {
  margin-top: 3rem;
}

.rule-list {
  border-top: 1px solid var(--border);
}

.rule-list > li {
  border-bottom: 1px solid var(--border);
}

/* ------------------------------------------------------------------ *
 * 4. Navigation
 * ------------------------------------------------------------------ */

.nav {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}

.nav--scrolled {
  background-color: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom-color: var(--border);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  min-height: 1.5rem;
  padding-inline: 0.25rem;
  margin-inline: -0.25rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.logo .cursor {
  color: var(--accent);
  transition: opacity 0.3s;
}

.logo:hover .cursor {
  opacity: 0.6;
}

.nav__links {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  position: relative;
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav__link:hover,
.nav__link[aria-current="true"] {
  color: var(--text);
}

.nav__link::after {
  content: "";
  position: absolute;
  inset-inline: 0.75rem;
  bottom: -1px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.nav__link[aria-current="true"]::after {
  transform: scaleX(1);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}

.icon-button:hover {
  background: var(--surface);
  color: var(--text);
}

.nav__resume {
  display: none;
  align-items: center;
  gap: 0.4rem;
  padding: 0.375rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}

.nav__resume:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.nav__toggle {
  display: inline-flex;
}

.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background-color: color-mix(in srgb, var(--bg) 95%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.mobile-menu.is-open {
  display: block;
}

.mobile-menu ul {
  max-width: var(--measure);
  margin-inline: auto;
  padding: 0.5rem 1.25rem 1rem;
}

.mobile-menu li + li {
  border-top: 1px solid var(--border);
}

.mobile-menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
  font-size: 1rem;
}

.mobile-menu .num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-subtle);
}

/* ------------------------------------------------------------------ *
 * 5. Hero
 * ------------------------------------------------------------------ */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: 7rem 5rem;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 40%, transparent 100%);
  mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 40%, transparent 100%);
}

.hero__glow {
  position: absolute;
  top: -18rem;
  left: 50%;
  width: min(46rem, 120%);
  height: 36rem;
  transform: translateX(-50%);
  border-radius: 999px;
  background: var(--accent-soft);
  filter: blur(120px);
}

.hero__pointer {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    420px circle at var(--px, 70%) var(--py, 20%),
    var(--accent-soft),
    transparent 70%
  );
}

.hero__layout {
  display: grid;
  gap: 3.5rem;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.375rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 60%, transparent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.badge__dot {
  position: relative;
  display: inline-flex;
  width: 0.375rem;
  height: 0.375rem;
}

.badge__dot span {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--success);
}

.badge__dot span:first-child {
  animation: ping 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.badge__dot--muted span {
  background: var(--text-subtle);
}

@keyframes ping {
  75%,
  100% {
    transform: scale(2.2);
    opacity: 0;
  }
}

.hero__name {
  margin-top: 1.75rem;
  font-size: clamp(2.75rem, 11vw, 7.5rem);
  line-height: 0.88;
  letter-spacing: -0.045em;
}

.hero__name span {
  display: block;
}

.hero__name .line-1 {
  background: linear-gradient(180deg, var(--text) 30%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__name .line-2 {
  color: var(--text-muted);
}

.hero__headline {
  margin-top: 2rem;
  max-width: 34rem;
  font-size: clamp(1.125rem, 2.4vw, 1.5rem);
  font-weight: 500;
  line-height: 1.3;
}

.hero__intro {
  margin-top: 1.25rem;
  max-width: 32rem;
  color: var(--text-muted);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

/* Code panel */

.panel {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  min-width: 0;
}

.panel__chrome {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 60%, transparent);
}

.panel__dots {
  display: flex;
  gap: 0.375rem;
}

.panel__dots i {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 999px;
  background: var(--border-strong);
}

.panel__tabs {
  display: flex;
  gap: 0.25rem;
  margin-left: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.panel__tabs::-webkit-scrollbar {
  display: none;
}

.panel__tab {
  padding: 0.25rem 0.625rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-subtle);
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}

.panel__tab:hover {
  color: var(--text-muted);
}

.panel__tab[aria-selected="true"] {
  background: var(--bg);
  color: var(--text);
}

.panel__body {
  position: relative;
  min-height: 19rem;
  padding: 1rem;
  overflow-x: auto;
}

.panel__pane {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.9;
  white-space: pre;
}

.panel__pane[hidden] {
  display: none;
}

/* Syntax tokens */
.tok-key { color: var(--accent); }
.tok-str { color: #34d399; }
.tok-kw { color: #c4b5fd; }
.tok-fn { color: #7dd3fc; }
.tok-dim { color: var(--text-subtle); }

.light .tok-str { color: #059669; }
.light .tok-kw { color: #6d28d9; }
.light .tok-fn { color: #0369a1; }

/* ------------------------------------------------------------------ *
 * 6. Projects
 * ------------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.625rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s, opacity 0.2s;
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.55;
  pointer-events: none;
}

.btn--primary {
  background: var(--accent-solid);
  color: var(--accent-contrast);
}

.btn--primary:hover {
  opacity: 0.9;
}

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

.btn--secondary:hover {
  background: var(--surface);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.filter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.25rem;
  padding: 0.375rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}

.filter:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.filter[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  background: var(--accent-soft);
  color: var(--accent);
}

.filter .count {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-subtle);
  font-variant-numeric: tabular-nums;
}

.project-grid {
  display: grid;
  gap: 1.25rem;
}

.project-grid > li[hidden] {
  display: none;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  transition: border-color 0.3s;
}

.card:hover,
.card:focus-within {
  border-color: var(--border-strong);
}

.card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.25rem;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.card__meta .num {
  color: var(--accent);
}

.card__title {
  margin-top: 0.75rem;
  font-size: 1.125rem;
}

/* The whole card is the click target; only the title is announced. */
.card__title a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.card__type {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-subtle);
}

.card__desc {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.card__tech {
  margin-top: 1.25rem;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.card__cta svg {
  color: var(--accent);
  transition: transform 0.3s;
}

.card:hover .card__cta svg {
  transform: translateX(4px);
}

.card__repo {
  position: relative;
  z-index: 10;
  display: inline-flex;
  padding: 0.25rem;
  margin: -0.25rem;
  color: var(--text-subtle);
  transition: color 0.2s;
}

.card__repo:hover {
  color: var(--text);
}

/* Generated project visual */

.visual {
  position: relative;
  overflow: hidden;
  height: 11rem;
  background: var(--bg-elevated);
}

.visual--tall {
  height: 14rem;
}

.visual--hero {
  height: 14rem;
}

.visual__pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.55;
}

.visual__glow {
  position: absolute;
  top: -33%;
  left: 50%;
  width: 70%;
  height: 130%;
  border-radius: 999px;
  background: var(--accent-soft);
  filter: blur(48px);
  transition: transform 0.7s ease-out;
}

.visual__line {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.35;
}

.visual__content {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  padding: 1.25rem;
}

.visual__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--text-subtle);
}

.visual__label {
  text-align: right;
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.visual__name {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  line-height: 1.1;
}

.visual__tags {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.empty-state {
  padding: 3.5rem 1.5rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-muted);
}

.subheading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

/* ------------------------------------------------------------------ *
 * 7. Experience
 * ------------------------------------------------------------------ */

.experience__item {
  padding-block: 2rem;
}

.experience__period {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.experience__current {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--success);
}

.experience__current i {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 999px;
  background: var(--success);
}

.experience__company {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
}

.experience__company a:hover {
  color: var(--accent);
}

.experience__role {
  margin-top: 0.375rem;
  color: var(--accent);
}

.experience__dates {
  margin-top: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.experience__project {
  margin-top: 0.625rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

.experience__summary {
  margin-top: 1rem;
  max-width: 42rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.bullets {
  margin-top: 1.25rem;
  display: grid;
  gap: 0.625rem;
}

.bullets li {
  display: flex;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.bullets li::before {
  content: "";
  flex: none;
  width: 0.25rem;
  height: 0.25rem;
  margin-top: 0.6rem;
  border-radius: 999px;
  background: var(--accent);
}

/* ------------------------------------------------------------------ *
 * 8. Skills, education, certifications
 * ------------------------------------------------------------------ */

.skill-grid {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--border);
}

.skill-group {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  background: var(--bg);
}

.skill-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.skill-group__head h3 {
  font-size: 1rem;
  font-weight: 500;
}

.skill-group__head .num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-subtle);
}

.skill-group__desc {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-subtle);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.skill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}

.skill:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.skill small {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-subtle);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--border);
}

.stats > div {
  padding: 1.25rem;
  background: var(--bg);
}

.stats dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.stats dd {
  margin: 0.5rem 0 0;
  font-size: 1.125rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.timeline-entry {
  padding-block: 1.5rem;
}

.timeline-entry__date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.timeline-entry h4 {
  margin-top: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
}

.timeline-entry p {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ------------------------------------------------------------------ *
 * 9. Contact and forms
 * ------------------------------------------------------------------ */

.contact__details {
  display: grid;
  gap: 1rem;
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding-block: 0.25rem;
  transition: color 0.2s;
  word-break: break-word;
}

.contact__link:hover {
  color: var(--accent);
}

.contact__link svg {
  flex: none;
  color: var(--text-subtle);
  transition: color 0.2s;
}

.contact__link:hover svg {
  color: var(--accent);
}

.social-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1rem;
}

.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}

.social-pill:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.form {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.form__row {
  display: grid;
  gap: 1.25rem;
}

.field {
  display: block;
}

.field__label {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.field__label .optional {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.field__label .required {
  color: var(--accent);
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-size: 0.875rem;
  transition: border-color 0.2s;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-subtle);
}

.field input:hover,
.field textarea:hover {
  border-color: var(--border-strong);
}

.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
}

.field textarea {
  min-height: 8rem;
  resize: vertical;
}

.field--error input,
.field--error textarea {
  border-color: color-mix(in srgb, var(--danger) 60%, transparent);
}

.field__error {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--danger);
}

.form__foot {
  display: flex;
  flex-direction: column;
  /* Keeps the submit button at its natural width instead of stretching it
     across the whole form. */
  align-items: flex-start;
  gap: 1rem;
  margin-top: 1.75rem;
}

.form__error {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--danger);
}

.form__success {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  text-align: center;
}

.form__success svg {
  margin-inline: auto;
  color: var(--success);
}

.form__success h3 {
  margin-top: 1rem;
  font-size: 1.125rem;
  font-weight: 500;
}

.form__success p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* ------------------------------------------------------------------ *
 * 10. Footer
 * ------------------------------------------------------------------ */

.footer {
  border-top: 1px solid var(--border);
  padding-block: 3.5rem;
}

.footer__top {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.footer__name {
  margin-top: 1rem;
  font-size: 1rem;
  font-weight: 500;
}

.footer__title {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer__location {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.footer__links {
  display: grid;
  gap: 0.75rem;
}

.footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding-block: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.footer__links svg {
  color: var(--text-subtle);
  transition: color 0.2s;
}

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

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.footer__note {
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-subtle);
}

/* ------------------------------------------------------------------ *
 * 11. Project detail
 * ------------------------------------------------------------------ */

.detail {
  padding-block: 7rem 5rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 1.5rem;
  padding-block: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-subtle);
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--text);
}

.detail__title {
  margin-top: 2rem;
  font-size: clamp(2.25rem, 6vw, 3.75rem);
}

.detail__summary {
  margin-top: 1.25rem;
  max-width: 42rem;
  font-size: 1.0625rem;
  color: var(--text-muted);
}

.detail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.detail__figure {
  margin-top: 3.5rem;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.detail__layout {
  display: grid;
  gap: 3rem;
  margin-top: 3.5rem;
}

.detail__lead {
  font-size: 1.0625rem;
  color: var(--text-muted);
}

.block {
  margin-top: 3rem;
}

.block > h2 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.block__body {
  margin-top: 1rem;
  color: var(--text-muted);
}

.meta-list {
  border-top: 1px solid var(--border);
}

.meta-list > div {
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.meta-list dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.meta-list dd {
  margin: 0.375rem 0 0;
  font-size: 0.875rem;
}

.architecture {
  margin-top: 1.5rem;
  padding: 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.architecture .node {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.architecture .children {
  margin: 0.25rem 0 0 1rem;
  padding-left: 1rem;
  border-left: 1px solid var(--border);
  display: grid;
  gap: 0.25rem;
}

.architecture .children li {
  position: relative;
  padding-block: 0.25rem;
}

.architecture .children li::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 50%;
  width: 0.75rem;
  height: 1px;
  background: var(--border);
}

.architecture .children .node {
  background: var(--bg-elevated);
  color: var(--text-muted);
}

.architecture .arrow {
  padding: 0.25rem 0 0.25rem 1rem;
  color: var(--text-subtle);
}

.gallery {
  display: grid;
  gap: 1.25rem;
}

.gallery img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.gallery figcaption {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.pager {
  display: grid;
  gap: 1rem;
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.pager a {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.pager a:hover {
  border-color: var(--border-strong);
}

.pager .label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.pager .title {
  display: block;
  margin-top: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
}

.pager .next {
  text-align: right;
}

.pager .next .label {
  justify-content: flex-end;
}

/* Error pages */

.error-page {
  display: flex;
  align-items: center;
  min-height: 70vh;
  padding-block: 6rem;
}

.error-page .code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.error-page h1 {
  margin-top: 1.25rem;
  font-size: clamp(2rem, 6vw, 3.75rem);
}

.error-page p {
  margin-top: 1.25rem;
  max-width: 30rem;
  color: var(--text-muted);
}

.error-page .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

/* ------------------------------------------------------------------ *
 * 12. Motion
 * ------------------------------------------------------------------ */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

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

/* Without JavaScript nothing should ever stay hidden. */
.no-js .reveal {
  opacity: 1;
  transform: none;
}

.drift {
  animation: drift 24s ease-in-out infinite alternate;
  will-change: transform;
}

@keyframes drift {
  from {
    transform: translateX(-50%) translate3d(-3%, -2%, 0) scale(1);
  }
  to {
    transform: translateX(-50%) translate3d(3%, 2%, 0) scale(1.08);
  }
}

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

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

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

/* ------------------------------------------------------------------ *
 * Responsive
 * ------------------------------------------------------------------ */

@media (min-width: 640px) {
  .container,
  .nav__inner,
  .mobile-menu ul {
    padding-inline: 2rem;
  }

  .section {
    padding-block: 6rem;
  }

  .form,
  .form__success {
    padding: 2rem;
  }

  .card__body,
  .visual__content {
    padding: 1.5rem;
  }

  .visual {
    height: 12rem;
  }

  .visual--tall {
    height: 16rem;
  }

  .visual--hero {
    height: 18rem;
  }

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

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

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

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

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

  .footer__top,
  .footer__bottom {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
  }

  .footer__bottom {
    align-items: center;
  }

  .experience__item {
    display: grid;
    grid-template-columns: 8rem minmax(0, 1fr);
    gap: 2rem;
    padding-block: 2.5rem;
  }

  .panel__body {
    min-height: 21rem;
    padding: 1.25rem;
  }

  .panel__pane {
    font-size: 0.8125rem;
  }

  .visual__name {
    font-size: 1.5rem;
  }

  .card__title {
    font-size: 1.25rem;
  }

  .experience__company {
    font-size: 1.5rem;
  }
}

@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }

  .nav__toggle {
    display: none;
  }

  .nav__resume {
    display: inline-flex;
  }

  .mobile-menu {
    display: none !important;
  }

  .section__intro,
  .experience__summary,
  .bullets li,
  .detail__lead,
  .block__body {
    font-size: 1rem;
  }
}

@media (min-width: 1024px) {
  .container,
  .nav__inner {
    padding-inline: 3rem;
  }

  .section {
    padding-block: 8rem;
  }

  .hero {
    padding-block: 10rem 8rem;
  }

  .hero__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 26rem);
    gap: 4rem;
  }

  .project-grid,
  .skill-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .split {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 5rem;
  }

  .split--even {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4rem;
  }

  .split--form {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 4rem;
  }

  .experience__item {
    grid-template-columns: 12rem minmax(0, 1fr);
  }

  .detail__layout {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 4rem;
  }

  .detail__aside {
    position: sticky;
    top: 6rem;
    align-self: start;
  }

  .visual--hero {
    height: 24rem;
  }
}

@media (min-width: 1280px) {
  .hero__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 30rem);
  }
}