/* ============================================================
   Moinul Islam — Portfolio
   Warm paper & ink palette · serif headings · Inter body
   ============================================================ */

@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-var-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-var-latin.woff2") format("woff2");
  font-weight: 100 800;
  font-style: normal;
  font-display: swap;
}

/* ---------- tokens ---------- */
/* One rust accent, plus a few earthy tones used sparingly so sections
   don't all look the same. */
:root,
:root[data-theme="dark"] {
  --bg: #161412;
  --bg-alt: #1c1a17;
  --surface: #211e1b;
  --surface-2: #2a2622;
  --border: #3a352f;
  --text: #ece5d8;
  --muted: #b5ab9b;
  --accent: #e0895a;
  --accent-strong: #eea37a;
  --accent-ink: #1d120b;
  --accent-soft: rgba(224, 137, 90, 0.16);
  --olive: #b3bd72;
  --slate: #93b4cd;
  --ochre: #dbb45e;
  --plum: #c99bb3;
  --shadow: 0 1px 0 rgba(0, 0, 0, 0.4), 0 12px 28px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f4efe6;
  --bg-alt: #ece5d8;
  --surface: #fbf8f2;
  --surface-2: #f1ebdf;
  --border: #d8cdbb;
  --text: #231f1a;
  --muted: #5b5347;
  --accent: #a4451d;
  --accent-strong: #873512;
  --accent-ink: #fffaf2;
  --accent-soft: rgba(164, 69, 29, 0.12);
  --olive: #5f6c1c;
  --slate: #33607f;
  --ochre: #8a6512;
  --plum: #7d4262;
  --shadow: 0 1px 0 rgba(60, 40, 20, 0.08), 0 12px 26px rgba(60, 40, 20, 0.12);
  color-scheme: light;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 0.5em; }
h1, h2 {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}
h2 { font-size: clamp(1.7rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.05rem; font-weight: 650; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-strong); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
.mono { font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .container { padding: 0 28px; } }

.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 100;
  background: var(--accent); color: var(--accent-ink);
  padding: 8px 14px; border-radius: 4px; font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 16px; min-height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 600; }
.brand:hover { color: var(--text); }
.brand-mark {
  display: block; width: 34px; height: 34px; border-radius: 50%;
  object-fit: cover; border: 1px solid var(--border); background: var(--surface-2);
}
.site-nav { display: flex; gap: 2px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.site-nav::-webkit-scrollbar { display: none; }
.site-nav a {
  color: var(--muted); text-decoration: none; font-size: 0.93rem; font-weight: 500;
  padding: 6px 11px; white-space: nowrap; border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--text); }
.site-nav a[aria-current="true"] { color: var(--text); border-bottom-color: var(--accent); }
.theme-toggle, .menu-toggle {
  place-items: center; width: 38px; height: 38px; flex: none;
  border-radius: 6px; border: 1px solid var(--border); background: transparent;
  color: var(--text); cursor: pointer;
}
.theme-toggle { display: grid; }
.theme-toggle:hover, .menu-toggle:hover { border-color: var(--muted); }
:root[data-theme="dark"] .icon-moon, :root:not([data-theme]) .icon-moon { display: none; }
:root[data-theme="light"] .icon-sun { display: none; }

.menu-toggle { display: none; margin-left: auto; }
@media (max-width: 760px) {
  .header-inner { gap: 8px; position: relative; }
  .menu-toggle { display: grid; }
  .site-nav {
    display: none; position: absolute; top: 100%; left: -16px; right: -16px;
    flex-direction: column; gap: 0; padding: 6px 16px 14px;
    background: var(--bg); border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 11px 4px; font-size: 1rem; border-bottom: 1px solid var(--border); }
  .site-nav a:last-child { border-bottom: 0; }
  .site-nav a[aria-current="true"] { border-bottom-color: var(--border); color: var(--accent); }
}

/* ---------- hero ---------- */
.hero { padding: 64px 0 36px; }
.hero-grid { display: grid; gap: 40px; align-items: center; }
@media (min-width: 860px) { .hero-grid { grid-template-columns: 1.5fr 1fr; gap: 64px; } }

.hero-greeting { color: var(--muted); font-size: 1.1rem; margin: 0 0 4px; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 4.3rem); margin-bottom: 10px; }
/* a highlighter stroke under the name */
.hero h1 span {
  background: linear-gradient(transparent 64%, var(--accent-soft) 64%, var(--accent-soft) 90%, transparent 90%);
  padding: 0 4px; margin: 0 -4px;
}
.hero-role { font-size: clamp(1.08rem, 2.3vw, 1.3rem); color: var(--accent); font-weight: 600; margin-bottom: 14px; }
.hero-tagline { font-size: 1.1rem; color: var(--muted); max-width: 44ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 16px; }
.hero-meta { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* photo, framed like a print */
.portrait {
  margin: 0 auto; width: min(300px, 78%);
  padding: 10px 10px 12px; background: var(--surface);
  border: 1px solid var(--border); box-shadow: var(--shadow);
  transform: rotate(1.6deg);
}
.portrait img { width: 100%; height: auto; }
@media (min-width: 860px) { .portrait { width: 100%; max-width: 320px; } }

.btn {
  display: inline-flex; align-items: center; gap: 8px; min-height: 46px; padding: 0 20px;
  border-radius: 6px; font-weight: 600; font-size: 0.97rem; text-decoration: none;
  border: 1px solid transparent; transition: background 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-strong); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--text); color: var(--text); }

/* stats: a plain row of figures */
.stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px 0; margin: 52px 0 0;
  padding: 22px 0 0; border-top: 1px solid var(--border);
}
@media (min-width: 720px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stat { display: flex; flex-direction: column-reverse; justify-content: flex-end; padding: 0 18px; border-left: 1px solid var(--border); }
.stat:first-child, .stat:nth-child(3) { border-left: 0; padding-left: 0; }
@media (min-width: 720px) { .stat:nth-child(3) { border-left: 1px solid var(--border); padding-left: 18px; } }
.stat-value {
  margin: 0; font-size: 2rem; font-weight: 600; line-height: 1.1;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}
.stat:nth-child(1) .stat-value { color: var(--accent); }
.stat:nth-child(2) .stat-value { color: var(--olive); }
.stat:nth-child(3) .stat-value { color: var(--slate); }
.stat:nth-child(4) .stat-value { color: var(--ochre); }
.stat-label { color: var(--muted); font-size: 0.87rem; margin-top: 4px; }

/* ---------- sections ---------- */
.section { padding: 80px 0; }
.section.alt { background: var(--bg-alt); }
.section h2 { margin-bottom: 0.6em; }
.eyebrow { color: var(--accent); font-size: 0.85rem; margin-bottom: 10px; }
.lead { color: var(--muted); font-size: 1.07rem; max-width: 62ch; }
.sub-title { margin-top: 48px; margin-bottom: 16px; font-size: 1.1rem; }
.two-col { display: grid; gap: 32px; }
@media (min-width: 900px) { .two-col { grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: start; } }
.prose p { color: var(--muted); font-size: 1.04rem; }

.highlight-list { list-style: none; display: grid; gap: 0; }
.highlight { display: grid; gap: 2px; padding: 14px 0 14px 16px; border-left: 3px solid var(--border); }
.highlight + .highlight { margin-top: 10px; }
.highlight:nth-child(1) { border-left-color: var(--accent); }
.highlight:nth-child(2) { border-left-color: var(--olive); }
.highlight:nth-child(3) { border-left-color: var(--slate); }
.highlight:nth-child(4) { border-left-color: var(--ochre); }
.highlight strong { font-weight: 650; }
.highlight span { color: var(--muted); font-size: 0.95rem; }

/* tags */
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-size: 0.86rem; padding: 3px 9px; border-radius: 3px;
  background: var(--surface-2); color: var(--text);
}
.chips-sm .chip { font-size: 0.8rem; padding: 2px 8px; color: var(--muted); background: transparent; border: 1px solid var(--border); }

/* skills: each group gets its own colour on the top edge */
.skills-grid { display: grid; gap: 18px; margin-top: 24px; }
@media (min-width: 640px) { .skills-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .skills-grid { grid-template-columns: repeat(4, 1fr); } }
.skill-card {
  --c: var(--accent);
  background: var(--surface); border: 1px solid var(--border); border-top: 3px solid var(--c);
  border-radius: 4px; padding: 16px 16px 18px;
}
.skill-card:nth-child(5n+2) { --c: var(--olive); }
.skill-card:nth-child(5n+3) { --c: var(--slate); }
.skill-card:nth-child(5n+4) { --c: var(--ochre); }
.skill-card:nth-child(5n+5) { --c: var(--plum); }
.skill-card h3 { font-size: 0.98rem; margin-bottom: 12px; }

/* timeline */
.timeline { list-style: none; margin-top: 28px; }
.job { display: grid; gap: 4px 32px; padding: 26px 0; border-top: 1px solid var(--border); }
.job:first-child { border-top: 0; padding-top: 0; }
@media (min-width: 860px) { .job { grid-template-columns: 190px 1fr; } }
.job-head { display: contents; }
.job-head > div { grid-column: 1 / -1; }
@media (min-width: 860px) {
  .job-head > div { grid-column: 2; grid-row: 1; }
  .job-period { grid-column: 1; grid-row: 1; padding-top: 3px; }
  .job-points, .job .chips { grid-column: 2; }
}
.job-role { font-size: 1.15rem; margin-bottom: 2px; }
.job-company { color: var(--accent); font-weight: 550; margin: 0; }
.job-period { color: var(--muted); font-size: 0.85rem; margin: 0; }
.job-points { padding-left: 1.1em; margin: 10px 0 14px; color: var(--muted); }
.job-points li { margin-bottom: 6px; }
.job-points li::marker { color: var(--accent); }

/* cards */
.cards { display: grid; gap: 18px; margin-top: 24px; }
@media (min-width: 760px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card {
  display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--border);
  border-radius: 4px; padding: 20px 20px 22px; transition: border-color 0.2s ease;
}
.card:hover { border-color: var(--muted); }
.card-kind { color: var(--muted); font-size: 0.78rem; margin-bottom: 8px; }
.card h3 { font-size: 1.14rem; }
.card-summary { color: var(--muted); font-size: 0.95rem; }
.card-points { padding-left: 1.1em; color: var(--muted); font-size: 0.93rem; margin-bottom: 16px; }
.card-points li { margin-bottom: 4px; }
.card-points li::marker { color: var(--accent); }
.card .chips { margin-top: auto; }
.card-link { margin: 16px 0 0; font-weight: 600; font-size: 0.93rem; }
.card-compact .card-summary { margin: 0; }
.status {
  align-self: flex-start; font-size: 0.74rem; color: var(--ochre);
  border: 1px solid currentColor; padding: 1px 8px; border-radius: 3px; margin-bottom: 12px;
}
#security-now .card:nth-child(2) .status { color: var(--olive); }
#security-now .card:nth-child(3) .status { color: var(--slate); }

/* roadmap */
.roadmap { list-style: none; display: grid; gap: 14px; counter-reset: step; }
@media (min-width: 760px) { .roadmap { grid-template-columns: repeat(3, 1fr); } }
.road-step {
  display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px;
  border: 1px dashed var(--border); border-radius: 4px;
}
.road-num {
  color: var(--accent); font-weight: 600; font-size: 1.3rem; line-height: 1;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}
.road-step h4 { font-size: 1rem; margin-bottom: 4px; }
.road-step p { color: var(--muted); font-size: 0.9rem; margin: 0; }

/* education */
.edu-list { list-style: none; display: grid; gap: 0; }
.edu { padding: 14px 0; border-bottom: 1px solid var(--border); }
.edu:first-child { padding-top: 0; }
.edu:last-child { border-bottom: 0; }
.edu h3 { font-size: 1rem; margin-bottom: 4px; }
.edu p { color: var(--muted); margin: 0; font-size: 0.93rem; }

/* contact */
.contact { text-align: center; }
.contact-inner { display: flex; flex-direction: column; align-items: center; }
.contact .lead { margin-left: auto; margin-right: auto; }
.contact-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 12px; }
.contact-actions .btn-primary span { overflow-wrap: anywhere; }

/* footer */
.site-footer { border-top: 1px solid var(--border); padding: 24px 0; color: var(--muted); font-size: 0.86rem; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
.footer-inner p { margin: 0; }
.noscript { text-align: center; padding: 16px; }

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
  .portrait { transform: none; }
}