/*
 * base.css — reset, layout, grid and responsive structure.
 * Structural only: display, positioning, sizing, gaps BETWEEN components,
 * section padding and breakpoints. Every value comes from the Contract 2
 * tokens in design/tokens.css. Colour, typography, borders, shadows and the
 * spacing INSIDE components (cards, timeline, certs, stats…) live in
 * design/theme.css (loaded after this file) — see design/DESIGN.md §7.
 * Breakpoints: 640px (2 columns), 896px (desktop header, about split),
 * 1024px (3 columns). Keep 896px in sync with MOBILE_QUERY in main.js.
 */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, dl, dt, dd,
figure, blockquote {
  margin: 0;
}

/* :where() keeps this reset at zero specificity so component rules in theme.css can set padding. */
:where(ul[class], ol[class]) {
  list-style: none;
  padding: 0;
}

body {
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  overflow-x: hidden;
  overflow-wrap: break-word;
}

h1, h2, h3, h4 {
  overflow-wrap: break-word;
}

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

img {
  height: auto;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

main:focus {
  outline: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  font-weight: var(--fw-medium);
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: none;
}

/* Default inline-icon size; theme.css sizes icons inside components. */
.icon {
  width: 1.25em;
  height: 1.25em;
  flex: none;
}

/* ------------------------------------------------------------------ */
/* Layout                                                              */
/* ------------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section,
.hero {
  scroll-margin-top: var(--header-h);
}

.section {
  padding-block: var(--space-9);
}

.section__head {
  max-width: 48rem;
  margin-bottom: var(--space-7);
}

.section__lead {
  max-width: var(--measure);
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid {
    gap: var(--space-6);
  }

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

/* Components: outer box behaviour only (look + inner spacing: theme.css). */
.btn {
  max-width: 100%;
}

.card {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ------------------------------------------------------------------ */
/* Header                                                              */
/* ------------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header > .container {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: var(--header-h);
}

.brand {
  margin-right: auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-5);
}

.nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.theme-toggle,
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  min-width: 44px;
  min-height: 44px;
}

@media (max-width: 895.98px) {
  /* Without JS the nav stays inline (wrapping); with JS it becomes a menu panel. */
  .js .site-header .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-2) var(--container-pad) var(--space-4);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

  .js .site-header.is-open .nav {
    display: flex;
  }

  .js .site-header .nav__link {
    padding-block: var(--space-3);
    font-size: var(--fs-base);
    border-bottom: 1px solid var(--color-border);
  }

  .js .site-header .nav__link:last-child {
    border-bottom: 0;
  }

  .site-header > .container {
    flex-wrap: wrap;
  }

  html:not(.js) .site-header > .container {
    padding-block: var(--space-3) var(--space-1);
  }

  .js .site-header > .container {
    flex-wrap: nowrap;
  }
}

@media (min-width: 896px) {
  .nav-toggle {
    display: none;
  }

  .nav {
    flex-wrap: nowrap;
    margin-right: var(--space-2);
  }
}

/* ------------------------------------------------------------------ */
/* Hero (DESIGN.md §8 rhythm: eyebrow → h1 → tagline → lead → actions  */
/* → meta → stats; the margins inside the heading block are theme's)   */
/* ------------------------------------------------------------------ */
.hero {
  padding-block: var(--space-10) var(--space-9);
}

.hero > .container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero__title {
  max-width: 100%;
}

.hero__tagline {
  max-width: 30ch;
}

.hero__lead {
  max-width: 40rem;     /* stays left of the motif hub (DESIGN.md §8) */
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-7);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-5);
  margin-top: var(--space-6);
}

.hero__availability {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr));
  gap: var(--space-6) var(--space-5);
  width: 100%;
  margin-top: var(--space-9);
}

.stat {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.noscript-fallback {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* ------------------------------------------------------------------ */
/* About: heading block left (5/12), paragraphs right (7/12) on wide   */
/* ------------------------------------------------------------------ */
.about__body {
  display: grid;
  gap: var(--space-4);
  max-width: var(--measure);
}

@media (min-width: 896px) {
  #about > .container {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-8);
    align-items: start;
  }

  #about .section__head {
    margin-bottom: 0;
  }
}

/* ------------------------------------------------------------------ */
/* Experience timeline (rail, nodes and indent are theme.css's)        */
/* ------------------------------------------------------------------ */
.timeline {
  position: relative;
  max-width: 48rem;
}

.timeline__item {
  min-width: 0;
}

.timeline__company {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
}

.earlier__heading {
  margin-top: var(--space-9);
  margin-bottom: var(--space-5);
}

.earlier {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .earlier {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.earlier__item {
  display: grid;
  align-content: start;
  min-width: 0;
}

/* ------------------------------------------------------------------ */
/* Projects                                                            */
/* ------------------------------------------------------------------ */
.project-card {
  min-width: 0;
}

/* ------------------------------------------------------------------ */
/* Certifications                                                      */
/* ------------------------------------------------------------------ */
.certs {
  align-items: start;     /* groups have very different lengths */
}

/* Two columns: flow the groups (balanced columns) instead of grid rows, so a
   long group doesn't leave a hole next to a short one. */
@media (min-width: 640px) and (max-width: 1023.98px) {
  .certs {
    display: block;
    columns: 2;
    column-gap: var(--space-5);
  }

  .certs > .cert-group {
    break-inside: avoid;
    margin-bottom: var(--space-5);
  }
}

.cert-group {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.cert-list {
  display: grid;
}

.cert {
  flex-wrap: wrap;
}

.cert__name {
  flex: 1 1 12rem;
  min-width: 0;
}

/* ------------------------------------------------------------------ */
/* Contact                                                             */
/* ------------------------------------------------------------------ */
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-5);
  max-width: 52rem;
}

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

@media (max-width: 480px) {
  .contact-card__actions {
    flex-direction: column;
    align-self: stretch;
  }
}

/* ------------------------------------------------------------------ */
/* Footer                                                              */
/* ------------------------------------------------------------------ */
.site-footer {
  padding-block: var(--space-6);
}

.site-footer > .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
}