/* ==========================================================================
   filipemelo.ch — "Signal"
   Dark, one electric-lime accent, Space Grotesk + JetBrains Mono.
   Screen only (media="screen"); the printed / PDF CV is styled by cv.css.
   ========================================================================== */

/* Fonts (self-hosted, latin subset) -------------------------------------- */

@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/space-grotesk-latin.woff2") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin.woff2") format("woff2");
  font-weight: 400 500;
  font-style: normal;
  font-display: swap;
}

/* Tokens ------------------------------------------------------------------ */

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --line: #21262d;
  --line-strong: #30363d;
  --text: #e6edf3;
  --text-2: #adbac7;
  --muted: #7d8590;
  --accent: #c6f432;
  --accent-hover: #d6ff5c;
  --accent-ink: #0d1117;
  --accent-soft: rgb(198 244 50 / 8%);
  --header-bg: rgb(13 17 23 / 85%);
  --font-sans: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", consolas, monospace;
  --container: 68rem;
  --gutter: 1rem;
  --radius: 8px;
  --header-h: 3.5rem;
  --dates-col: 9rem;
}

@media (width >= 48rem) {
  :root {
    --gutter: 2rem;
  }
}

/* Language visibility ------------------------------------------------------
   Every translatable element exists once per language. Only the active one
   (set on <html data-ui-lang> by lang.js; English without JS) is shown.
   [data-fixed-lang] marks foreign-language content that is always visible. */

:root[data-ui-lang="en"] body [lang]:not([lang="en"], [data-fixed-lang]),
:root[data-ui-lang="de"] body [lang]:not([lang="de"], [data-fixed-lang]),
:root[data-ui-lang="pt"] body [lang]:not([lang="pt"], [data-fixed-lang]) {
  display: none !important;
}

/* Base -------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}

h1,
h2,
h3,
p,
ul,
ol,
dl,
dd {
  margin: 0;
}

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

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

a {
  color: inherit;
}

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

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--gutter);
  z-index: 100;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: 0.75rem;
}

/* Header ------------------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
}

.lang-switch {
  display: flex;
  gap: 0.25rem;
  margin-inline-start: auto;
}

.lang-switch a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  border-radius: 4px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s, background-color 0.15s;
}

.site-nav {
  display: none;
  margin-inline-start: auto;
}

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

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

.lang-switch a:hover,
.site-nav a:hover {
  color: var(--text);
}

:root[data-ui-lang="en"] .lang-switch [data-set-lang="en"],
:root[data-ui-lang="de"] .lang-switch [data-set-lang="de"],
:root[data-ui-lang="pt"] .lang-switch [data-set-lang="pt"] {
  background: var(--accent);
  color: var(--accent-ink);
}

@media (width >= 60rem) {
  .site-nav {
    display: block;
  }

  .lang-switch {
    margin-inline-start: 0;
  }
}

/* Hero -------------------------------------------------------------------- */

.hero {
  position: relative;
  padding-block: 3.5rem 3rem;
  overflow: hidden;
}

/* Faint dot grid fading out from behind the portrait: the "signal" field. */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgb(198 244 50 / 14%) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse 55% 75% at 12% 40%, #000 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  align-items: center;
  gap: 1.75rem;
}

.hero-photo img {
  width: 7rem;
  height: 7rem;
  border-radius: 50%;
  object-fit: cover;
  box-shadow:
    0 0 0 4px var(--bg),
    0 0 0 5px var(--accent);
}

h1 {
  font-size: clamp(2.75rem, 8vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.hero-role {
  margin-top: 0.875rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: clamp(0.875rem, 2.4vw, 1.0625rem);
}

.prompt {
  margin-inline-end: 0.25em;
}

.cursor {
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.hero-pitch {
  max-width: 58ch;
  margin-top: 1rem;
  color: var(--text-2);
  font-size: clamp(1.0625rem, 2.2vw, 1.25rem);
  line-height: 1.55;
}

.print-contact {
  display: none;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.5rem 1.125rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.15s, background-color 0.15s;
}

.btn:hover {
  border-color: var(--text-2);
  background: var(--surface);
}

.btn-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

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

@media (width >= 48rem) {
  .hero {
    padding-block: 6rem 5rem;
  }

  .hero-inner {
    grid-template-columns: auto 1fr;
    gap: 2.75rem;
  }

  .hero-photo img {
    width: 10.5rem;
    height: 10.5rem;
  }
}

/* Sections ---------------------------------------------------------------- */

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

.section-label {
  margin-bottom: 1.75rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
}

.section-label::before {
  content: "// " / "";
  color: var(--muted);
}

@media (width >= 48rem) {
  .section {
    padding-block: 5rem;
  }
}

/* Profile ----------------------------------------------------------------- */

.profile-grid {
  display: grid;
  gap: 2rem;
}

.profile-text > div {
  display: grid;
  gap: 1rem;
}

.profile-text p {
  max-width: 62ch;
  color: var(--text-2);
  font-size: 1.125rem;
}

.facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.fact {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.fact-value {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.2;
}

.fact-label {
  color: var(--text-2);
  font-size: 0.875rem;
  line-height: 1.4;
}

/* Approach ---------------------------------------------------------------- */

.principles {
  display: grid;
  gap: 0.875rem;
  counter-reset: principle;
}

.principle {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  counter-increment: principle;
}

.principle::before {
  content: counter(principle, decimal-leading-zero) / "";
  display: block;
  margin-bottom: 0.75rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.principle h3 {
  margin-bottom: 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.3;
}

.principle p {
  color: var(--text-2);
  font-size: 0.9375rem;
  line-height: 1.55;
}

@media (width >= 40rem) {
  .principles {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (width >= 64rem) {
  .principles {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Career ------------------------------------------------------------------ */

.role {
  display: grid;
  gap: 0.5rem 2rem;
  padding-block: 1.75rem;
  border-top: 1px solid var(--line);
}

.role:first-child {
  padding-top: 0;
  border-top: 0;
}

.role-dates {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  white-space: nowrap;
}

/* Timeline marker: hollow for past roles, filled lime for current ones. */
.role-dates::before {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  margin-inline-end: 0.375rem;
  border: 1px solid var(--muted);
  border-radius: 50%;
}

.role-current .role-dates::before {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.role-title {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
}

.role-note,
.role-org-inline {
  color: var(--text-2);
  font-weight: 400;
}

.role-note {
  font-size: 1rem;
}

.role-org {
  margin-top: 0.25rem;
  color: var(--text-2);
  font-size: 0.9375rem;
}

.role-points {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.875rem;
}

.role-points li {
  position: relative;
  max-width: 72ch;
  padding-left: 1.25rem;
  color: var(--text-2);
  line-height: 1.55;
}

.role-points li::before {
  content: "";
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 0.5rem;
  height: 1px;
  background: var(--accent);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 1rem;
}

.tags li {
  padding: 0.1875rem 0.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.tags-lg {
  margin-top: 0;
}

.tags-lg li {
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
}

.earlier {
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.earlier summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 2.75rem;
  padding: 1rem 1.25rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  list-style: none;
  cursor: pointer;
}

.earlier summary::-webkit-details-marker {
  display: none;
}

/* Chevron drawn with borders so it doesn't depend on font glyphs. */
.earlier summary::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid currentcolor;
  border-bottom: 2px solid currentcolor;
  transform: rotate(-45deg);
  transition: transform 0.2s;
}

.earlier[open] summary::before {
  transform: rotate(45deg);
}

.earlier-range {
  margin-inline-start: auto;
  color: var(--muted);
}

.earlier-list {
  padding: 0 1.25rem 0.5rem;
}

.earlier-list > li {
  display: grid;
  gap: 0.25rem 2rem;
  padding-block: 1rem;
  border-top: 1px solid var(--line);
}

.earlier-list .role-title {
  font-size: 1.0625rem;
}

.earlier-list p:not(.role-dates) {
  max-width: 72ch;
  margin-top: 0.375rem;
  color: var(--text-2);
  font-size: 0.9375rem;
}

@media (width >= 48rem) {
  .role,
  .earlier-list > li {
    grid-template-columns: var(--dates-col) 1fr;
  }

  .role-dates {
    align-self: start;
    padding-top: 0.3rem;
  }
}

/* Education --------------------------------------------------------------- */

.education-grid {
  display: grid;
  gap: 2.5rem;
}

.certs-title {
  margin-bottom: 0.75rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cert-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
}

.cert-meta {
  padding-top: 0.2rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  white-space: nowrap;
}

.degrees > li {
  display: grid;
  gap: 0.25rem 2rem;
  padding-block: 1rem;
  border-top: 1px solid var(--line);
}

.degrees > li:first-child {
  padding-top: 0;
  border-top: 0;
}

.degrees .role-dates::before {
  content: none;
}

.degrees .role-title {
  font-size: 1.0625rem;
}

.degrees p:not(.role-dates, .role-org) {
  color: var(--text-2);
  font-size: 0.9375rem;
}

@media (width >= 48rem) {
  .degrees > li {
    grid-template-columns: var(--dates-col) 1fr;
  }
}

/* Writing ----------------------------------------------------------------- */

.writing-grid {
  display: grid;
  gap: 0.875rem;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color 0.15s;
}

.card:hover {
  border-color: var(--line-strong);
}

.card-accent,
.card-accent:hover {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-soft), transparent 60%), var(--surface);
}

.card-kicker {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
}

.card p:not(.card-kicker) {
  color: var(--text-2);
  font-size: 0.9375rem;
}

.card-link {
  margin-top: auto;
  padding-top: 0.5rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-decoration: none;
}

.card-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Make the whole card clickable through the link. */
.card-link::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
}

@media (width >= 48rem) {
  .writing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Skills & languages ------------------------------------------------------ */

.skills-grid {
  display: grid;
  gap: 2rem;
}

.languages > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.5rem;
  border-top: 1px solid var(--line);
}

.languages > div:first-child {
  padding-top: 0;
  border-top: 0;
}

.languages dt {
  font-weight: 500;
}

.languages dd {
  padding-top: 0.2rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-align: right;
}

/* Contact ----------------------------------------------------------------- */

.contact {
  background: var(--surface);
}

.contact-inner {
  display: grid;
  gap: 2rem;
}

.contact-title {
  max-width: 22ch;
  margin-bottom: 0.875rem;
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.contact-inner p:not(.contact-title) {
  max-width: 52ch;
  color: var(--text-2);
}

.contact-actions {
  max-width: 34rem;
  margin-top: 0;
}

.contact .btn:hover {
  background: var(--bg);
}

.contact .btn-primary:hover {
  background: var(--accent-hover);
}

/* Footer ------------------------------------------------------------------ */

.site-footer {
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
}

/* Two-column layouts on wide screens ------------------------------------- */

@media (width >= 56rem) {
  .profile-grid,
  .skills-grid {
    grid-template-columns: 1.6fr 1fr;
    align-items: start;
    gap: 3.5rem;
  }

  .education-grid {
    grid-template-columns: 1.3fr 1fr;
    gap: 3.5rem;
  }

  .contact-inner {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .contact-actions {
    justify-content: flex-end;
  }
}

/* Motion ------------------------------------------------------------------ */

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

  .cursor {
    animation: none;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}