/* ===========================================================================
   layout.css — page frame: header, navigation, hero, section rhythm, footer
   ========================================================================= */

body {
  /* faint engineering grid — the site's texture, kept far below text contrast */
  background-image:
    linear-gradient(to right, rgba(43, 58, 82, .035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 58, 82, .035) 1px, transparent 1px);
  background-size: 96px 96px;
}

/* --------------------------------------------------------------- header */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .22s var(--ease), border-color .22s;
}
.site-header.is-scrolled { box-shadow: var(--sh-1); border-bottom-color: var(--line-2); }
.header-inner {
  display: flex; align-items: center; gap: 18px;
  min-height: var(--header-h);
}
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; color: var(--ink); flex: none; }
.brand:hover { color: var(--ink); }
.brand-mark {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  font-family: var(--font-display); font-size: .82rem; font-weight: 700; letter-spacing: .02em;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: 10px;
  box-shadow: inset 0 -2px 0 rgba(180, 83, 13, .16);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-family: var(--font-display); font-size: .97rem; font-weight: 600; letter-spacing: -.01em; }
.brand-text small {
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-3);
  /* The full qualification is 52 characters and cannot share one line with eight nav
     items plus the CV button inside the 1180px column. Two capped lines keep the
     wording intact without growing the header. */
  white-space: normal; max-width: 27ch; line-height: 1.45;
}

.main-nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 2px; }
.nav-link {
  position: relative;
  display: block;
  padding: 9px 11px;
  font-size: .87rem; font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
  border-radius: var(--r-sm);
  transition: color .16s, background .16s;
  white-space: nowrap;
}
.nav-link:hover { color: var(--ink); background: var(--surface-2); }
.nav-link::after {
  content: ""; position: absolute; left: 11px; right: 11px; bottom: 2px;
  height: 2px; border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .26s var(--ease);
}
.nav-link.is-active { color: var(--ink); font-weight: 600; }
.nav-link.is-active::after { transform: scaleX(1); }
.nav-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.header-actions { display: flex; align-items: center; gap: 10px; flex: none; }

.nav-toggle {
  display: none;
  width: 42px; height: 38px;
  align-items: center; justify-content: center;
  background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--r-sm);
  cursor: pointer;
}
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  content: ""; display: block; position: relative;
  width: 18px; height: 2px; background: var(--ink); border-radius: 2px;
  transition: transform .22s var(--ease), opacity .18s;
}
.nav-toggle-bar::before { position: absolute; top: -6px; left: 0; }
.nav-toggle-bar::after { position: absolute; top: 6px; left: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-6px) rotate(-45deg); }

/* -------------------------------------------------------------- sections */
.section { padding-block: var(--section-gap); scroll-margin-top: calc(var(--header-h) + 8px); }
.section-alt { background: linear-gradient(180deg, var(--canvas-deep), var(--canvas)); border-block: 1px solid var(--line); }
.section-head { margin-bottom: clamp(28px, 4vw, 46px); max-width: 78ch; }
.section-head h2 { margin-bottom: 0; }

/* ------------------------------------------------------------------ hero */
.hero {
  position: relative;
  padding-top: clamp(48px, 7vw, 88px);
  padding-bottom: clamp(56px, 8vw, 104px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 88% 0%, var(--accent-soft) 0%, rgba(253, 240, 224, 0) 58%),
    linear-gradient(180deg, #fff 0%, var(--canvas) 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(280px, .58fr);
  gap: clamp(28px, 5vw, 68px);
  align-items: start;
}
.hero-copy h1 { margin-bottom: 18px; }
.hero-copy h1 .surname { color: var(--accent-deep); }
.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.06rem, 1.6vw, 1.3rem);
  line-height: 1.4;
  color: var(--slate);
  max-width: 34ch;
  margin: 0 0 14px;
  font-weight: 500;
}
.hero-role {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .04em;
  color: var(--ink-2);
  background: var(--surface); border: 1px solid var(--line-2);
  border-radius: var(--r-pill); padding: 6px 13px;
  margin: 0 0 26px;
}
.hero-role::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }

.social-row { display: flex; flex-wrap: wrap; gap: 8px; }
.social-link {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 13px;
  font-size: .82rem; font-weight: 500;
  color: var(--ink-2);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  text-decoration: none;
  transition: border-color .16s, color .16s, transform .16s var(--ease), box-shadow .16s;
}
.social-link:hover { color: var(--accent-deep); border-color: var(--accent-line); transform: translateY(-1px); box-shadow: var(--sh-1); }
.social-link[data-state="empty"] { color: var(--ink-3); background: var(--surface-2); border-style: dashed; cursor: default; }
.social-link[data-state="empty"]:hover { transform: none; box-shadow: none; border-color: var(--line-2); color: var(--ink-3); }
.social-ico { font-family: var(--font-mono); font-size: .72rem; font-weight: 700; color: var(--accent); }

.hero-aside { display: grid; gap: 18px; }
.portrait {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-lg);
  padding: 12px;
  box-shadow: var(--sh-2);
}
.portrait img {
  width: 100%; height: auto;
  border-radius: var(--r);
  background: var(--surface-2);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: top center;
}
.portrait figcaption {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .07em; text-transform: uppercase;
  color: var(--ink-3); text-align: center; padding: 10px 0 2px;
}

.stat-strip {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}
.stat {
  background: var(--surface);
  padding: 14px 15px;
  display: flex; flex-direction: column; gap: 2px;
}
.stat dt { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--slate); letter-spacing: -.02em; line-height: 1.1; }
.stat dd { margin: 0; font-size: .76rem; line-height: 1.3; color: var(--ink-3); }

.scroll-cue {
  margin: clamp(30px, 5vw, 54px) 0 0;
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-3);
  display: flex; align-items: center; gap: 8px;
}
.scroll-cue span { animation: cue 2.4s var(--ease) infinite; }
@keyframes cue { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(4px); } }

/* ------------------------------------------------------------ about grid */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(240px, .5fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
/* Delivery examples read as labelled points, not bullets: the category is the
   information, so it sits above the sentence it introduces. */
.about-point {
  display: grid; gap: 3px;
  margin: 14px 0; padding: 1px 0 1px 14px;
  border-left: 2px solid var(--accent-line);
}
.about-point strong {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent-deep);
}
.about-point span { color: var(--ink-2); max-width: 68ch; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-left: 3px solid var(--accent);
  border-radius: var(--r);
  padding: 20px 22px;
  box-shadow: var(--sh-1);
  position: sticky;
  top: calc(var(--header-h) + 18px);
}
.panel h3 { font-size: .95rem; margin-bottom: 12px; }
.panel-list { display: grid; gap: 12px; }
.panel-item dt {
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-3); margin-bottom: 2px;
}
.panel-item dd { margin: 0; font-size: .92rem; color: var(--ink); }

/* ------------------------------------------------ education & experience */
.timeline { display: grid; gap: 20px; }
.edu-card {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  gap: clamp(16px, 3vw, 34px);
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3vw, 30px);
  box-shadow: var(--sh-1);
  position: relative;
}
.edu-card + .edu-card::before {
  content: ""; position: absolute; left: 0; right: 0; top: -21px; height: 20px;
  border-left: 1px dashed var(--line-2);
  margin-left: clamp(20px, 3vw, 30px);
}
.edu-when { display: grid; gap: 6px; align-content: start; }
.edu-period { font-family: var(--font-mono); font-size: .8rem; color: var(--accent-deep); letter-spacing: .02em; }
.edu-badge {
  justify-self: start;
  font-size: .7rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em;
  padding: 3px 9px; border-radius: var(--r-pill);
  background: var(--slate-soft); color: var(--slate);
}
.edu-cgpa {
  font-family: var(--font-display); font-size: 1.7rem; font-weight: 700; color: var(--slate);
  letter-spacing: -.02em; line-height: 1;
}
.edu-cgpa small { display: block; font-family: var(--font-mono); font-size: .62rem; font-weight: 400; letter-spacing: .12em; color: var(--ink-3); margin-top: 4px; }
.edu-card h3 { margin-bottom: 4px; }
.edu-inst { color: var(--ink-2); font-weight: 500; margin-bottom: 12px; }
.edu-body p { font-size: .95rem; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 0; }
/* these chips hold project titles, not one-word tags, so they may wrap */
.tag-list .chip { white-space: normal; line-height: 1.35; text-align: left; }
.edu-ach { margin: 16px 0 0; padding: 14px 16px; background: var(--accent-soft); border-radius: var(--r); border: 1px solid var(--accent-line); }
.edu-ach h4 { font-size: .74rem; font-family: var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-deep); margin-bottom: 8px; }
.edu-ach li { display: flex; align-items: flex-start; gap: 9px; font-size: .9rem; margin-bottom: 6px; }
.edu-ach .ach-ico { color: var(--accent); flex: none; margin-top: 1px; }

.exp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 18px; margin-top: 4px; }
.exp-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r);
  padding: 20px 22px; box-shadow: var(--sh-1);
}
.exp-card h4 { margin-bottom: 2px; font-size: 1.02rem; }
.exp-meta { font-family: var(--font-mono); font-size: .74rem; color: var(--ink-3); margin-bottom: 12px; letter-spacing: .03em; }
.exp-card li { font-size: .9rem; color: var(--ink-2); padding-left: 16px; position: relative; margin-bottom: 8px; }
.exp-card li::before { content: ""; position: absolute; left: 0; top: .6em; width: 6px; height: 1px; background: var(--accent); }

/* --------------------------------------------------------- toolbar & rows */
.toolbar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-bottom: 16px;
}
.field-grow { position: relative; flex: 1 1 320px; min-width: 240px; }
.field-grow .input { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2377828f' stroke-width='2.2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-4.3-4.3'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: 13px center; }
.result-count { margin: 0; font-family: var(--font-mono); font-size: .76rem; color: var(--ink-3); letter-spacing: .02em; white-space: nowrap; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: clamp(22px, 3vw, 32px); }

/* ---------------------------------------------------------------- footer */
.site-footer {
  background: var(--slate);
  color: #cfd8e6;
  padding: clamp(40px, 6vw, 64px) 0 26px;
  border-top: 3px solid var(--accent);
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.footer-name { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; color: #fff; margin-bottom: 8px; }
.footer-copy { font-size: .85rem; color: #a9b6c9; margin: 0; max-width: 40ch; }
.footer-nav ul { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 16px; }
.footer-nav a { color: #cfd8e6; text-decoration: none; font-size: .88rem; }
.footer-nav a:hover { color: var(--accent-bright); text-decoration: underline; }
.site-footer .social-row { align-content: start; }
.site-footer .social-link {
  background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .16); color: #dbe3ee;
}
.site-footer .social-link:hover { background: rgba(255, 255, 255, .12); color: #fff; border-color: var(--accent-bright); }
.site-footer .social-ico { color: var(--accent-bright); }
.site-footer .social-link[data-state="empty"] { color: #8b98ab; border-style: dashed; background: transparent; }
.footer-meta {
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  padding-top: 18px; font-size: .8rem; color: #93a1b6;
}
.footer-meta .link-btn { color: var(--accent-bright); }

/* ---------------------------------------------------------- edit banner */
.edit-banner {
  position: fixed; left: 12px; bottom: 12px; z-index: 150;
  max-width: min(520px, 92vw);
  background: #fff8e8; border: 1px solid var(--accent-line); border-left: 4px solid var(--accent);
  border-radius: var(--r); padding: 14px 16px; font-size: .82rem; color: var(--ink-2);
  box-shadow: var(--sh-3); max-height: 46vh; overflow: auto;
}
.edit-banner h4 { margin: 12px 0 4px; font-size: .8rem; }
.edit-banner p { margin: 0 0 6px; }

.noscript-note {
  margin: 12px auto; max-width: var(--wrap);
  background: var(--accent-soft); border: 1px solid var(--accent-line);
  border-radius: var(--r); padding: 14px 18px; font-size: .9rem;
}

/* ---------------------------------------------------------- responsive */
/* eight nav items plus the CV button need roughly 1240px. Below that the
   button goes first — the same download is offered in the hero, the contact
   block and the footer — and below 1060 the nav folds into the drawer. */
@media (max-width: 1180px) {
  .nav-link { padding: 9px 7px; font-size: .82rem; }
  .hero-grid { grid-template-columns: minmax(0, 1.15fr) minmax(240px, .85fr); }
}

@media (max-width: 1240px) {
  .header-actions .btn { display: none; }
}

@media (max-width: 1060px) {
  :root { --header-h: 62px; }
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: fixed; inset: var(--header-h) 0 auto 0;
    margin: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line-2);
    box-shadow: var(--sh-3);
    transform: translateY(-8px);
    opacity: 0; visibility: hidden;
    transition: transform .2s var(--ease), opacity .2s, visibility .2s;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .main-nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; padding: 10px var(--gutter) 18px; }
  .nav-link { padding: 13px 10px; border-bottom: 1px solid var(--line); font-size: .95rem; }
  .nav-link::after { display: none; }
  .nav-link.is-active { color: var(--accent-deep); background: var(--accent-soft); border-radius: var(--r-sm); }
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-aside { grid-template-columns: 200px minmax(0, 1fr); align-items: start; }
  .about-grid { grid-template-columns: 1fr; }
  .panel { position: static; }
  .edu-card { grid-template-columns: 1fr; }
  .edu-card + .edu-card::before { display: none; }
  /* a grid item's min-width defaults to its min-content, which is how one long
     word can push the whole column wider than the viewport */
  .timeline > *, .edu-card > * { min-width: 0; }
  .edu-when { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-id { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .hero-aside { grid-template-columns: 1fr; }
  .portrait { max-width: 260px; }
  .brand-text { display: none; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
  .toolbar { gap: 10px; }
  .field-grow { flex: 1 1 100%; }
  .contact-grid { grid-template-columns: 1fr !important; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-id { grid-column: auto; }
  .footer-meta { justify-content: flex-start; }
  .btn { padding: 11px 16px; }
}