/* =========================================================================
   Julian Giovanelli — CV site
   Refined-professional: navy + Inter, a single navy "spine" as the signature.
   ========================================================================= */

/* ---- Tokens ---------------------------------------------------------- */
:root {
  /* Theme: Ocean Depths — deep navy + teal + seafoam on cream.
     --navy is the accent token (teal here), deepened for small-text contrast. */
  --navy: #1F6F6F;
  --navy-link: #1B6464;
  --ink: #16222E;
  --slate: #51616B;
  --paper: #F1FAEE;          /* Ocean cream */
  --surface: #FFFFFF;
  --hairline: #CFE0DA;       /* cool cream-teal hairline */
  --tag-bg: #E4EFEA;         /* soft seafoam tint */

  --maxw: 760px;
  --pad: clamp(1.25rem, 5vw, 2rem);

  --radius: 10px;
  --radius-sm: 7px;

  --shadow: 0 1px 2px rgba(26, 35, 50, 0.05), 0 6px 24px rgba(45, 139, 139, 0.08);

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

  --step-eyebrow: 0.7rem;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

[data-theme="dark"] {
  --navy: #5FB6B6;
  --navy-link: #8AD0D0;
  --ink: #E8F2EF;
  --slate: #93A3A8;
  --paper: #131C26;
  --surface: #1B2733;
  --hairline: #2A3946;
  --tag-bg: #19232E;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 24px rgba(0, 0, 0, 0.4);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem; /* offset for sticky nav */
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}

h1, h2, h3 { line-height: 1.15; margin: 0; font-weight: 700; letter-spacing: -0.02em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

a {
  color: var(--navy-link);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}
a:hover { color: var(--ink); }

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

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  background: var(--navy);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; color: #fff; }

/* ---- Nav ------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), background-color 0.3s var(--ease);
}
.nav.is-scrolled { border-bottom-color: var(--hairline); }

.nav__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 0.75rem var(--pad);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.nav__mark {
  display: inline-grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 7px;
  background: var(--navy);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}
[data-theme="dark"] .nav__mark { color: #0F131C; }
.nav__name { font-size: 0.95rem; }

.nav__links {
  display: none;
  margin-left: auto;
  gap: 1.35rem;
  font-size: 0.9rem;
  font-weight: 500;
}
.nav__links a { color: var(--slate); }
.nav__links a:hover { color: var(--ink); }

.theme-toggle {
  margin-left: auto;
  display: inline-grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  background: var(--surface);
  color: var(--slate);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.3s var(--ease);
}
.nav__links + .theme-toggle { margin-left: 1.35rem; }
.theme-toggle:hover { color: var(--ink); border-color: var(--navy-link); }
.theme-toggle__moon { display: none; }
[data-theme="dark"] .theme-toggle__sun { display: none; }
[data-theme="dark"] .theme-toggle__moon { display: block; }

@media (min-width: 680px) {
  .nav__links { display: inline-flex; }
}

/* ---- Hero ------------------------------------------------------------ */
.hero {
  padding-top: clamp(3.5rem, 9vw, 6rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}
.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step-eyebrow);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 1.1rem;
}
.hero__name {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}
.hero__lede {
  margin-top: 1.25rem;
  max-width: 52ch;
  font-size: clamp(1.05rem, 2.5vw, 1.2rem);
  color: var(--slate);
}
.hero__actions {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem 2rem;
  flex-wrap: wrap;
}
.hero__contact {
  display: inline-flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.hero__contact a { color: var(--slate); position: relative; }
.hero__contact a:hover { color: var(--ink); }

/* One restrained page-load reveal, hero only */
@media (prefers-reduced-motion: no-preference) {
  .hero > .wrap > * {
    animation: rise 0.7s var(--ease) both;
  }
  .hero__name { animation-delay: 0.06s; }
  .hero__lede { animation-delay: 0.12s; }
  .hero__actions { animation-delay: 0.18s; }
}
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Buttons --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s var(--ease), box-shadow 0.18s var(--ease), background-color 0.18s var(--ease);
}
.btn--primary {
  background: var(--navy);
  color: #fff;
  box-shadow: var(--shadow);
}
[data-theme="dark"] .btn--primary { color: #0F131C; }
.btn--primary:hover {
  color: #fff;
  background: #175E5E;
  transform: translateY(-1px);
}
[data-theme="dark"] .btn--primary:hover { color: #0F131C; background: #8AD0D0; }

/* ---- Sections -------------------------------------------------------- */
.section {
  padding-block: clamp(2.75rem, 7vw, 4.5rem);
  border-top: 1px solid var(--hairline);
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step-eyebrow);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 0.6rem;
}
.section__title {
  font-size: clamp(1.55rem, 4vw, 2rem);
  position: relative;
  padding-bottom: 0.85rem;
  margin-bottom: 1.75rem;
}
.section__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 2.75rem;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
}
.prose { max-width: 64ch; color: var(--ink); }

/* ---- Experience: "statement of work" (signature) -------------------- */
/* The career, itemized like an account: role on the left, mono tabular
   dates aligned down the right, hairline rules between line items. */
.ledger { display: flex; flex-direction: column; }

.entry {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--hairline);
}
.entry:first-child { border-top: 2px solid var(--navy); }
.entry:last-child { padding-bottom: 0; }

.entry__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.1rem;
}
.entry__role { font-size: 1.22rem; }
.entry__org {
  margin-top: 0.15rem;
  font-weight: 600;
  color: var(--navy);
}
.entry__date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--slate);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  flex-shrink: 0;
}

.entry__line + .entry__line { margin-top: 1.4rem; }
.line__title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  flex-wrap: wrap;
  font-weight: 600;
  font-size: 0.98rem;
  margin-bottom: 0.65rem;
  color: var(--ink);
}
.line__date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--slate);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.bullets li {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: 0.6rem;
  color: var(--ink);
}
.bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--navy);
}

/* ---- Skills ---------------------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem 2rem;
}
@media (min-width: 560px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
}
.skill-group__title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  font-weight: 500;
  margin-bottom: 0.7rem;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tags li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  padding: 0.26rem 0.6rem;
  border-radius: 5px;
  background: var(--tag-bg);
  color: var(--ink);
  border: 1px solid var(--hairline);
}
.tags--sm li { font-size: 0.72rem; padding: 0.18rem 0.5rem; }

/* ---- Cards (Education / Projects) ----------------------------------- */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 620px) {
  #projects .cards { grid-template-columns: repeat(3, 1fr); }
  #education .cards { grid-template-columns: repeat(2, 1fr); }
}
.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 1.25rem 1.3rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}
.card:hover { transform: translateY(-2px); border-color: var(--navy-link); }
.card__title { font-size: 1.05rem; }
.card__note { font-weight: 400; color: var(--slate); font-size: 0.92rem; }
.card__meta { font-family: var(--font-mono); font-size: 0.75rem; color: var(--slate); font-variant-numeric: tabular-nums; letter-spacing: 0.01em; }
.card__body { color: var(--ink); font-size: 0.95rem; }
.card .tags { margin-top: auto; padding-top: 0.25rem; }

/* ---- Contact --------------------------------------------------------- */
.contact-list {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.7rem;
}
.contact-list li {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1rem;
  align-items: baseline;
}
.contact-list__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy);
  font-weight: 500;
}
.contact-cv { margin-top: 1.75rem; }
.link-arrow { font-weight: 600; }

/* ---- Footer ---------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--hairline);
  padding-block: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.01em;
  color: var(--slate);
}
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.footer__top { color: var(--slate); }
.footer__top:hover { color: var(--ink); }

/* ---- Motion preferences --------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---- Print ----------------------------------------------------------- */
@media print {
  :root {
    --ink: #000;
    --slate: #333;
    --navy: #1F6F6F;
    --paper: #fff;
    --surface: #fff;
    --hairline: #bbb;
    --shadow: none;
  }
  body { font-size: 10.5pt; line-height: 1.4; color: #000; background: #fff; }
  .nav, .theme-toggle, .skip-link, .btn, .contact-cv, .footer__top { display: none !important; }
  .hero { padding-top: 0.5rem; padding-bottom: 1rem; }
  .hero__actions { margin-top: 0.75rem; }
  .section { padding-block: 0.85rem; border-top: 1px solid #ccc; break-inside: avoid; }
  .entry { padding-block: 0.6rem 0.9rem; break-inside: avoid; }
  .entry:first-child { border-top-color: #000; }
  .card { box-shadow: none; break-inside: avoid; }
  a { color: #000; }
  .wrap { max-width: none; }
  @page { margin: 1.5cm; }
}