/*
  Saman Javidnia — portfolio
  A contemporary developer-tool site. Floating nav bar, a hero with the name in
  Departure Mono beside a working command palette, a bento grid of projects,
  then about, skills, resume and a centered contact close.
  Every value comes from tokens.css. Vertical rhythm: 128px between sections
  on desktop, 80px on phones; 48px from a heading to its content.
*/

/* ---------- Viewport-dependent layout ---------- */
:root {
  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  --section-pad: var(--s-20);
  --gap: var(--s-4);
}
@media (min-width: 768px) {
  :root {
    --gutter-l: max(32px, env(safe-area-inset-left, 0px));
    --gutter-r: max(32px, env(safe-area-inset-right, 0px));
    --section-pad: var(--s-24);
  }
}
@media (min-width: 1280px) {
  :root { --section-pad: var(--s-32); }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--s-24);
  scrollbar-color: var(--border-strong) var(--bg);
  accent-color: var(--accent);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--t-base);
  line-height: var(--leading-body);
  caret-color: var(--accent);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-wrap: break-word;
}

h1, h2, h3, p, ul, ol, dl, dd { margin: 0; }
ul, ol { list-style: none; padding: 0; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { font-weight: 500; text-wrap: balance; }
p { text-wrap: pretty; }

a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
  transition: color var(--d-fast) var(--ease-out), text-decoration-color var(--d-fast) var(--ease-out);
}
a:hover { text-decoration-color: var(--accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}
main:focus { outline: none; }
::selection { background: var(--selection); color: var(--text); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + 64px);
  margin-inline: auto;
  padding-left: var(--gutter-l);
  padding-right: var(--gutter-r);
}

.muted { color: var(--text-muted); }

/* Pixel icons: drawn on an 11px grid, rendered at whole multiples. */
.icon { width: 11px; height: 11px; flex: none; fill: currentColor; shape-rendering: crispEdges; }
.icon-lg { width: 22px; height: 22px; }
.icon-xl { width: 44px; height: 44px; }

/* Departure Mono roles: labels, tags, keycaps, dates. 11px multiples only. */
.label,
.tag,
.kbd,
.status,
.log-date,
.card-meta dt,
.pill,
.palette-group,
.palette-foot,
.brand-mark,
.resume-name,
.footer-year {
  font-family: var(--font-pixel);
  font-size: var(--px-1);
  letter-spacing: var(--tracking-pixel);
  font-weight: 400;
}
.label { text-transform: uppercase; letter-spacing: var(--tracking-label); color: var(--text-faint); }

/* Placeholder: dashed slot, still literally [TODO: …]. */
.todo {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--todo);
  border: 1px dashed var(--todo-line);
  border-radius: var(--r-sm);
  padding: 0.0625rem var(--s-2);
  overflow-wrap: anywhere;
}

.kbd {
  display: inline-grid;
  place-items: center;
  min-width: 1.375rem;
  height: 1.375rem;
  padding: 0 0.3125rem;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: var(--r-sm);
  line-height: 1;
}

.dot {
  display: inline-block;
  width: 0.4375rem;
  height: 0.4375rem;
  border-radius: var(--r-pill);
  background: var(--signal);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--signal) 20%, transparent);
  flex: none;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--gutter-l);
  top: calc(var(--s-2) + env(safe-area-inset-top, 0px));
  z-index: 100;
  padding: var(--s-2) var(--s-4);
  background: var(--btn-bg);
  color: var(--btn-text);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--r-pill);
  transform: translateY(-200%);
  transition: transform var(--d-fast) var(--ease-out);
}
.skip-link:focus, .skip-link:hover { transform: translateY(0); color: var(--btn-text); }

/* ---------- Header: floating bar ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  background: var(--bg);
  z-index: 49;
}

.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  padding: var(--s-3) var(--gutter-r) 0 var(--gutter-l);
}

.nav-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  max-width: calc(var(--wrap) + 32px);
  margin-inline: auto;
  min-height: 3.5rem;
  padding: var(--s-2) var(--s-2) var(--s-2) var(--s-4);
  background: color-mix(in srgb, var(--surface-1) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-panel);
}
@supports (backdrop-filter: blur(1px)) {
  .nav-bar { backdrop-filter: saturate(1.4) blur(12px); }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  min-height: var(--tap);
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  color: var(--bg);
  background: var(--text);
  border-radius: var(--r-sm);
  letter-spacing: 0;
}

.site-nav ul { display: flex; gap: var(--s-1); }
.site-nav a {
  display: flex;
  align-items: center;
  min-height: 2.25rem;
  padding-inline: var(--s-3);
  font-size: var(--t-sm);
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--r-pill);
  transition: color var(--d-fast) var(--ease-out), background-color var(--d-fast) var(--ease-out);
}
.site-nav a:hover { color: var(--text); background: var(--surface-2); }

.nav-actions { display: flex; align-items: center; gap: var(--s-2); }

.icon-button,
.kbd-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-1);
  height: 2.5rem;
  min-width: 2.5rem;
  padding: 0 var(--s-2);
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: background-color var(--d-fast) var(--ease-out), border-color var(--d-fast) var(--ease-out);
}
.icon-button:hover, .kbd-button:hover { background: var(--surface-2); border-color: var(--border-strong); }
.kbd-button { padding: 0 var(--s-2) 0 var(--s-3); gap: var(--s-2); color: var(--text-muted); }
.kbd-button .kbd { height: 1.25rem; min-width: 1.25rem; background: transparent; }
.kbd-button .kbd + .kbd { margin-left: -0.25rem; }

.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .theme-toggle .icon-sun { display: none; }
  :root:not([data-theme="dark"]) .theme-toggle .icon-moon { display: block; }
}

.menu-button { display: none; }
.menu-button .menu-close { display: none; }
.menu-button[aria-expanded="true"] .menu-open { display: none; }
.menu-button[aria-expanded="true"] .menu-close { display: inline; }

@media (max-width: 859px) {
  .js .menu-button { display: inline-flex; }
  .js .site-nav {
    position: absolute;
    top: calc(100% + var(--s-2));
    left: 0;
    right: 0;
    padding: var(--s-2);
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-panel);
  }
  .js .site-nav:not(.is-open) { display: none; }
  .js .site-nav ul { flex-direction: column; }
  .js .site-nav a { min-height: var(--tap); font-size: var(--t-base); color: var(--text); border-radius: var(--r-sm); }
  .kbd-button .kbd { display: none; }
  .kbd-button { padding: 0; width: 2.5rem; }
  .brand-name { font-size: var(--t-sm); }
  html:not(.js) .nav-bar { flex-wrap: wrap; }
  html:not(.js) .site-nav ul { flex-wrap: wrap; }
}

/* ---------- Buttons ---------- */
.button-row { display: flex; flex-wrap: wrap; gap: var(--s-3); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: var(--tap);
  padding: 0 var(--s-6);
  font: 500 var(--t-base) / 1 var(--font-sans);
  text-decoration: none;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--d-fast) var(--ease-out), border-color var(--d-fast) var(--ease-out), color var(--d-fast) var(--ease-out), transform var(--d-fast) var(--ease-out);
}
.button:active { transform: scale(0.98); }
.button-primary { background: var(--btn-bg); color: var(--btn-text); }
.button-primary:hover { background: var(--btn-bg-hover); color: var(--btn-text); }
.button-ghost { color: var(--text); background: transparent; border-color: var(--border-strong); }
.button-ghost:hover { background: var(--surface-2); color: var(--text); }
.button-sm { min-height: 2.5rem; padding: 0 var(--s-4); font-size: var(--t-sm); }
.button[aria-pressed="true"] { border-color: var(--accent); color: var(--accent-text); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: var(--s-16) var(--section-pad);
  overflow: clip;
}
.hero-glow {
  position: absolute;
  inset: -10% -10% auto auto;
  width: min(60rem, 90vw);
  height: 40rem;
  background:
    radial-gradient(closest-side, var(--glow), transparent 70%),
    radial-gradient(closest-side at 60% 40%, var(--glow-2), transparent 80%);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s-12);
  align-items: center;
}

.hero-copy { display: grid; gap: var(--s-6); justify-items: start; min-width: 0; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-2) var(--s-4);
  color: var(--text-muted);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  line-height: 1.4;
}

.hero-name {
  font-family: var(--font-pixel);
  font-weight: 400;
  font-size: var(--px-4);
  line-height: 1;
  letter-spacing: -0.01em;
}
.hero-name span { display: block; }

.hero-role { font-size: var(--t-lg); color: var(--text); letter-spacing: -0.01em; }
.hero-intro { max-width: 34rem; font-size: 1.125rem; line-height: var(--leading-body); color: var(--text-muted); }
.hero .button-row { padding-top: var(--s-2); }
.hero-facts { font-size: var(--t-sm); color: var(--text-faint); }

@media (min-width: 560px) { .hero-name { font-size: var(--px-6); } .hero-intro { font-size: var(--t-lg); } }
@media (min-width: 1024px) {
  .hero { padding-top: var(--s-20); }
  .hero-grid { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: var(--s-16); }
  .hero-name { font-size: var(--px-8); }
}

/* ---------- Command palette ---------- */
.palette {
  position: relative;
  width: 100%;
  max-width: 32rem;
  justify-self: end;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}
@media (max-width: 1023px) { .palette { justify-self: stretch; max-width: none; } }

.palette-head {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: 0 var(--s-4);
  border-bottom: 1px solid var(--border);
  color: var(--text-faint);
}
.palette-input {
  flex: 1;
  min-width: 0;
  height: 3.5rem;
  padding: 0;
  font: 400 var(--t-base) / 1 var(--font-sans);
  color: var(--text);
  background: transparent;
  border: 0;
  outline: none;
}
.palette-input::placeholder { color: var(--text-faint); opacity: 1; }
.palette:has(.palette-input:focus-visible) { border-color: var(--border-strong); outline: 2px solid var(--accent); outline-offset: 2px; }

.palette-list { padding: var(--s-2); max-height: 22rem; overflow: auto; }
.palette-group {
  padding: var(--s-3) var(--s-3) var(--s-2);
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
}
.palette-item {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  min-height: var(--tap);
  padding: 0 var(--s-3);
  color: var(--text-muted);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background-color var(--d-fast) var(--ease-out), color var(--d-fast) var(--ease-out);
}
.palette-item span { flex: 1; }
.palette-item .kbd { visibility: hidden; }
.palette-item:hover { background: var(--surface-2); color: var(--text); }
.palette-item[aria-selected="true"] { background: var(--surface-2); color: var(--text); box-shadow: inset 2px 0 0 var(--accent); }
.palette-item[aria-selected="true"] .kbd { visibility: visible; }
.palette-item[hidden], .palette-group[hidden] { display: none; }

.palette-empty { padding: var(--s-6) var(--s-4); color: var(--text-muted); font-size: var(--t-sm); }
.palette-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2) var(--s-4);
  padding: var(--s-3) var(--s-4);
  color: var(--text-faint);
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 50%, transparent);
}
.palette-foot > span { display: inline-flex; align-items: center; gap: var(--s-1); }
.palette-foot .kbd { height: 1.25rem; min-width: 1.25rem; }
.palette-status { margin-left: auto; color: var(--signal); }

/* ---------- Sections ---------- */
.section { padding-block: var(--section-pad) 0; }
.section-contact { padding-bottom: var(--section-pad); }

.section-title {
  max-width: 40rem;
  margin-bottom: var(--s-12);
  font-size: clamp(var(--t-2xl), 2.4vw + 1rem, var(--t-4xl));
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-heading);
  font-weight: 500;
}
.section-title span { color: var(--text-faint); }

/* ---------- Projects: bento ---------- */
.bento { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--gap); }
@media (min-width: 720px) {
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-wide { grid-column: 1 / -1; }
}
@media (min-width: 1100px) {
  .bento { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .card-wide { grid-column: span 2; }
}

.card {
  --mx: 50%;
  --my: 0%;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  min-height: 16rem;
  padding: var(--s-6);
  background:
    radial-gradient(28rem circle at var(--mx) var(--my), var(--spot), transparent 60%),
    var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color var(--d) var(--ease-out);
}
.card:has(.card-link):hover,
.card:has(.card-link:focus-visible) { border-color: var(--border-strong); }
.card:has(.card-link:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }

.card-top { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); color: var(--text-muted); margin-bottom: var(--s-6); }
.card-title { font-size: var(--t-xl); line-height: var(--leading-snug); letter-spacing: -0.02em; }
.card-desc { color: var(--text-muted); max-width: var(--measure); }
.card-meta { display: grid; gap: var(--s-2); }
.card-meta > div { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--s-3); }
.card-meta dt { min-width: 3.5rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: var(--tracking-label); }
.card-foot { margin-top: auto; padding-top: var(--s-4); border-top: 1px solid var(--border); font-size: var(--t-sm); }

.card-link { color: inherit; text-decoration: none; }
.card-link::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.card-link:focus-visible { outline: none; }

.status { display: inline-flex; align-items: center; gap: var(--s-2); color: var(--text-muted); text-transform: uppercase; letter-spacing: var(--tracking-label); }

.tags { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.5rem;
  padding: 0 var(--s-3);
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
}

/* ---------- About ---------- */
.about-grid { display: grid; gap: var(--s-12); }
@media (min-width: 1024px) {
  .about-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-16); }
}
.prose { display: grid; gap: var(--s-5); max-width: var(--measure); font-size: var(--t-lg); color: var(--text-muted); align-content: start; }
.prose p:first-child { color: var(--text); }

.log { display: grid; gap: var(--s-4); align-content: start; }
.log-list { margin-bottom: var(--s-8); border-top: 1px solid var(--border); }
.log-list:last-child { margin-bottom: 0; }
.log-list > li {
  display: grid;
  grid-template-columns: 6.75rem minmax(0, 1fr);
  gap: var(--s-4);
  padding-block: var(--s-4);
  border-bottom: 1px solid var(--border);
}
.log-date { padding-top: 0.25rem; color: var(--text-faint); font-variant-numeric: tabular-nums; }
.log-title { font-weight: 500; line-height: var(--leading-snug); }
.log-meta { padding-top: var(--s-1); font-size: var(--t-sm); color: var(--text-muted); line-height: var(--leading-snug); }

/* ---------- Skills ---------- */
.skills { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--gap); }
@media (min-width: 640px) { .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .skills { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.skill {
  display: grid;
  gap: var(--s-4);
  align-content: start;
  padding: var(--s-5) var(--s-6) var(--s-6);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}

/* ---------- Resume ---------- */
.resume {
  display: grid;
  gap: var(--s-8);
  align-items: center;
  padding: var(--s-8);
  background:
    radial-gradient(40rem circle at 0% 0%, var(--glow-2), transparent 60%),
    var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
.resume .section-title { margin-bottom: var(--s-6); }
.resume-copy { display: grid; justify-items: start; }
.resume-file {
  display: grid;
  justify-items: center;
  gap: var(--s-3);
  width: 8.25rem;
  padding: var(--s-6) var(--s-4);
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
}
.resume-name { color: var(--text); }
@media (min-width: 768px) {
  .resume { grid-template-columns: auto minmax(0, 1fr); gap: var(--s-12); padding: var(--s-12); }
}

/* ---------- Contact ---------- */
.contact { display: grid; justify-items: center; text-align: center; gap: var(--s-6); }
.contact-title {
  font-family: var(--font-pixel);
  font-weight: 400;
  font-size: var(--px-4);
  line-height: 1;
}
@media (min-width: 768px) { .contact-title { font-size: var(--px-6); } }
.contact-lead { max-width: 30rem; font-size: var(--t-lg); color: var(--text-muted); }
.contact-email { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: var(--s-3) var(--s-4); }
.email-link {
  font-size: clamp(var(--t-lg), 1.6vw + 0.9rem, var(--t-2xl));
  font-weight: 500;
  letter-spacing: -0.02em;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  overflow-wrap: anywhere;
}
.copy-status { min-height: 1.5rem; font-size: var(--t-sm); color: var(--signal); }
.contact-links { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--s-3) var(--s-8); }
.contact-links li { display: inline-flex; align-items: center; gap: var(--s-3); min-height: 1.75rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4) var(--s-8);
  padding-block: var(--s-8);
  font-size: var(--t-sm);
  color: var(--text-muted);
}
.footer-sign { display: inline-flex; align-items: center; gap: var(--s-3); color: var(--text); font-weight: 500; }
.footer-year { color: var(--text-faint); }
.footer-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2) var(--s-6); }
.back-to-top { display: inline-flex; align-items: center; min-height: var(--tap); color: var(--text-muted); }

/* ---------- Motion ---------- */
.reveal.is-pending { opacity: 0.001; transform: translateY(var(--s-3)); }
.reveal.is-revealed {
  opacity: 1;
  transform: none;
  transition: opacity var(--d-slow) var(--ease-out), transform var(--d-slow) var(--ease-out);
}

.theme-switching,
.theme-switching * {
  transition: background-color var(--d) var(--ease-out), border-color var(--d) var(--ease-out), color var(--d) var(--ease-out), fill var(--d) var(--ease-out) !important;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  .reveal.is-pending { opacity: 1; transform: none; }
  .button:active { transform: none; }
}

@media (forced-colors: active) {
  .button, .icon-button, .kbd-button, .card, .skill, .palette, .tag, .todo, .kbd, .nav-bar, .pill { border: 1px solid CanvasText; }
  .palette-item[aria-selected="true"] { outline: 2px solid Highlight; }
  :focus-visible { outline-color: Highlight; }
  .dot { background: CanvasText; forced-color-adjust: none; }
}