/* ==========================================================================
   Subash Shrestha — portfolio styles
   Layered: reset → base → utilities → components → sections → motion
   ========================================================================== */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { min-height: 100dvh; line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img, svg, video { display: block; max-width: 100%; }
button, input, textarea { font: inherit; color: inherit; }
ul, ol { padding: 0; list-style: none; }
h1, h2, h3, h4 { line-height: 1.1; font-weight: 400; overflow-wrap: anywhere; }
a { color: inherit; text-decoration-color: var(--line-strong); text-underline-offset: 0.2em; }
::selection { background: var(--selection); }

/* ---------- Base ---------- */
body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  color: var(--text);
  background: var(--bg);
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}

/* Subtle paper grain so large flat areas are not dead */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    radial-gradient(60rem 40rem at 10% -10%, var(--glow), transparent 60%),
    radial-gradient(40rem 30rem at 110% 10%, var(--glow), transparent 60%);
  opacity: 0.9;
}

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

.container {
  width: min(100% - 2 * var(--gutter), var(--container));
  margin-inline: auto;
}

/* ---------- Utilities ---------- */
.skip-link {
  position: absolute; top: -100%; left: var(--gutter);
  padding: var(--space-2) var(--space-4);
  background: var(--accent); color: var(--accent-ink);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 500; z-index: 100;
}
.skip-link:focus { top: 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-mono); font-size: var(--step--1);
  color: var(--text-2); letter-spacing: 0.02em;
}
.eyebrow__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--accent-soft); }
  50% { box-shadow: 0 0 0 8px transparent; }
}

.button {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 0.8em 1.4em;
  border-radius: 999px;
  font-weight: 500; font-size: var(--step--1);
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
}
.button:active { transform: translateY(1px); }
.button--primary { background: var(--accent); color: var(--accent-ink); }
.button--primary:hover { filter: brightness(1.06); }
.button--ghost { border-color: var(--line-strong); color: var(--text); }
.button--ghost:hover { border-color: var(--accent); color: var(--accent); }

.link-arrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-weight: 500; text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: border-color var(--dur-fast), color var(--dur-fast);
}
.link-arrow:hover { color: var(--accent); border-color: var(--accent); }
.link-arrow span { transition: transform var(--dur-fast) var(--ease-out); display: inline-block; }
.link-arrow:hover span { transform: translate(2px, -2px); }

.tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.tags li {
  font-family: var(--font-mono); font-size: 0.75rem;
  padding: 0.25em 0.65em;
  border: 1px solid var(--line); border-radius: 999px;
  color: var(--text-2);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur), background-color var(--dur);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header__inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-5);
}

.brand {
  display: inline-flex; align-items: center; gap: var(--space-3);
  text-decoration: none; font-weight: 500;
}
.brand__mark {
  display: grid; place-items: center;
  width: 2.1rem; height: 2.1rem; border-radius: 10px;
  font-family: var(--font-display); font-size: 1.25rem;
  background: var(--accent); color: var(--accent-ink);
}
.brand__name { font-size: var(--step--1); }

.site-nav { margin-left: auto; }
.nav-list { display: flex; gap: var(--space-5); align-items: center; }
.nav-list a {
  position: relative;
  font-size: var(--step--1); color: var(--text-2);
  text-decoration: none; padding: var(--space-2) 0;
  transition: color var(--dur-fast);
}
.nav-list a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}
.nav-list a:hover, .nav-list a[aria-current="true"] { color: var(--text); }
.nav-list a[aria-current="true"]::after { transform: scaleX(1); }
.nav-list__external a { color: var(--text-3); }

.nav-toggle { display: none; }

.theme-toggle {
  display: grid; place-items: center;
  width: 2.4rem; height: 2.4rem; border-radius: 50%;
  border: 1px solid var(--line); background: transparent; cursor: pointer;
  color: var(--text-2);
  transition: border-color var(--dur-fast), color var(--dur-fast), transform var(--dur) var(--ease-out);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); transform: rotate(15deg); }
.theme-toggle__icon { grid-area: 1 / 1; transition: opacity var(--dur), transform var(--dur) var(--ease-out); }
.theme-toggle__icon--sun { opacity: 0; transform: scale(0.6) rotate(-90deg); }
.theme-toggle__icon--moon { opacity: 1; }
[data-resolved-theme="light"] .theme-toggle__icon--sun { opacity: 1; transform: none; }
[data-resolved-theme="light"] .theme-toggle__icon--moon { opacity: 0; transform: scale(0.6) rotate(90deg); }

/* ---------- Hero ---------- */
.hero {
  padding-block: clamp(5rem, 12vw, 10rem) clamp(3rem, 8vw, 6rem);
}
.hero__title {
  margin-top: var(--space-5);
  text-wrap: balance;
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.04;
  max-width: 22ch;
  font-variation-settings: "opsz" 144;
}
.hero__name {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step-0);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text-2);
  margin-bottom: var(--space-4);
}
.hero__title em {
  font-style: italic; font-weight: 400;
  color: var(--accent);
}

.hero__lead {
  margin-top: var(--space-6);
  max-width: 58ch;
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--text-2);
  font-weight: 400;
}
.hero__actions { margin-top: var(--space-6); display: flex; flex-wrap: wrap; gap: var(--space-3); }

.hero__facts {
  margin-top: clamp(3rem, 6vw, 5rem);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-5);
  border-top: 1px solid var(--line); padding-top: var(--space-5);
}
.hero__facts dt { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-3); letter-spacing: 0.04em; text-transform: uppercase; }
.hero__facts dd { margin-top: var(--space-1); font-size: var(--step-0); }

/* ---------- Ticker ---------- */
.ticker {
  overflow: hidden;
  border-block: 1px solid var(--line);
  padding-block: var(--space-3);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.ticker__track {
  display: flex; gap: var(--space-7); width: max-content;
  font-family: var(--font-mono); font-size: var(--step--1); color: var(--text-2);
  animation: ticker 40s linear infinite;
}
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__track li { white-space: nowrap; }
.ticker__track li::before { content: "◆"; font-size: 0.55em; color: var(--accent); margin-right: var(--space-7); vertical-align: middle; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding-block: var(--section-pad); }
.section--alt { background: var(--bg-elev); border-block: 1px solid var(--line); }

.section__head { margin-bottom: clamp(2.5rem, 5vw, 4rem); display: grid; gap: var(--space-3); }
.section__index { font-family: var(--font-mono); font-size: var(--step--1); color: var(--accent); }
.section__title {
  font-family: var(--font-display); font-size: var(--step-3); font-weight: 300;
  letter-spacing: -0.015em;
}
.section__lede { color: var(--text-2); max-width: 52ch; }
.section__foot { margin-top: var(--space-7); }

/* ---------- About ---------- */
.about {
  display: grid; gap: var(--space-8);
  grid-template-columns: 1fr;
}
@media (min-width: 56rem) {
  .about { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: var(--space-9); }
}
.about__text { display: grid; align-content: start; gap: var(--space-5); color: var(--text-2); max-width: 62ch; }
.about__intro { font-family: var(--font-display); font-size: var(--step-2); font-weight: 300; line-height: 1.3; color: var(--text); letter-spacing: -0.01em; }

.about__aside { display: grid; gap: var(--space-6); align-content: start; }
.portrait { display: grid; gap: var(--space-3); }
.portrait__placeholder {
  aspect-ratio: 4 / 5;
  display: grid; place-items: center;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, var(--bg-soft), var(--bg-elev)),
    var(--bg-elev);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-family: var(--font-display); font-size: var(--step-4); font-weight: 300;
  color: var(--accent);
  position: relative; overflow: hidden;
}
.portrait__placeholder::after {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(135deg, transparent 0 14px, var(--line) 14px 15px);
  opacity: 0.5;
}
.portrait img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; border-radius: var(--radius-lg); border: 1px solid var(--line); box-shadow: var(--shadow); }
.portrait figcaption { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-3); }

.meta-list { display: grid; gap: var(--space-3); }
.meta-list div { display: grid; grid-template-columns: 6rem 1fr; gap: var(--space-3); padding-block: var(--space-3); border-top: 1px solid var(--line); font-size: var(--step--1); }
.meta-list dt { color: var(--text-3); font-family: var(--font-mono); font-size: 0.75rem; padding-top: 0.15em; }

/* ---------- Timeline ---------- */
.timeline { display: grid; gap: 0; }
.timeline__item {
  display: grid; gap: var(--space-4);
  padding-block: var(--space-7);
  border-top: 1px solid var(--line);
}
.timeline__item:last-child { border-bottom: 1px solid var(--line); }
@media (min-width: 56rem) {
  .timeline__item { grid-template-columns: 16rem 1fr; gap: var(--space-8); }
  .timeline__meta { position: sticky; top: calc(var(--header-h) + var(--space-5)); align-self: start; }
}
.timeline__meta { display: grid; gap: var(--space-1); }
.timeline__period { font-family: var(--font-mono); font-size: var(--step--1); color: var(--accent); }
.timeline__company { font-weight: 500; }
.timeline__place { font-size: var(--step--1); color: var(--text-3); }

.timeline__body { display: grid; gap: var(--space-4); max-width: 62ch; }
.timeline__role { font-family: var(--font-display); font-size: var(--step-2); font-weight: 400; letter-spacing: -0.01em; }
.timeline__body > p { color: var(--text-2); }
.timeline__points { display: grid; gap: var(--space-2); color: var(--text-2); }
.timeline__points li { position: relative; padding-left: 1.25rem; }
.timeline__points li::before {
  content: ""; position: absolute; left: 0; top: 0.72em;
  width: 0.5rem; height: 1px; background: var(--accent);
}

/* ---------- Work ---------- */
.work-grid {
  display: grid; gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 48rem) {
  .work-grid { grid-template-columns: repeat(2, 1fr); }
  .work-card--wide { grid-column: 1 / -1; }
}
.work-card__link {
  position: relative; display: grid; gap: var(--space-5);
  height: 100%;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--bg-elev);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
a.work-card__link:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow); }
.work-card--wide .work-card__link { background: linear-gradient(135deg, var(--accent-soft), transparent 60%), var(--bg-elev); }
@media (min-width: 48rem) {
  .work-card--wide .work-card__link { grid-template-columns: auto 1fr auto; align-items: start; }
}
.work-card__index { font-family: var(--font-mono); font-size: var(--step--1); color: var(--accent); }
.work-card__body { display: grid; gap: var(--space-3); }
.work-card__title { font-family: var(--font-display); font-size: var(--step-2); font-weight: 400; letter-spacing: -0.01em; }
.work-card__client { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-3); margin-top: calc(-1 * var(--space-2)); }
.work-card__desc { color: var(--text-2); max-width: 52ch; }
.work-card__cta { font-size: var(--step--1); color: var(--text-2); align-self: end; justify-self: end; }
a.work-card__link:hover .work-card__cta { color: var(--accent); }

/* ---------- Skills ---------- */
.skills {
  display: grid; gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}
.skills__group { padding-top: var(--space-4); border-top: 1px solid var(--line-strong); }
.skills__group h3 { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); margin-bottom: var(--space-4); }
.skills__group ul { display: grid; gap: var(--space-2); }
.skills__group li { color: var(--text-2); }
.skills__group li:first-child { color: var(--text); font-weight: 500; }

/* ---------- Contact ---------- */
.section--contact { padding-bottom: clamp(5rem, 10vw, 9rem); }
.contact { display: grid; gap: var(--space-6); max-width: 60ch; }
.contact__lede { font-size: var(--step-1); color: var(--text-2); line-height: 1.5; }
.contact__email { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.contact__email-link {
  font-family: var(--font-display); font-size: var(--step-2); font-weight: 300;
  text-decoration: none; letter-spacing: -0.01em;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.contact__email-link:hover { color: var(--accent); border-color: var(--accent); }
.copy-button {
  padding: 0.35em 0.8em; border-radius: 999px;
  border: 1px solid var(--line); background: transparent; cursor: pointer;
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-2);
  transition: border-color var(--dur-fast), color var(--dur-fast);
}
.copy-button:hover { border-color: var(--accent); color: var(--accent); }
.copy-button.is-copied { border-color: var(--accent); color: var(--accent); }
.contact__links { display: flex; flex-wrap: wrap; gap: var(--space-5); font-size: var(--step--1); }
.contact__links a { color: var(--text-2); text-decoration: none; transition: color var(--dur-fast); }
.contact__links a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: var(--space-6); font-size: var(--step--1); color: var(--text-3); }
.site-footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-4); }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--accent); }
.site-footer__meta { display: flex; gap: var(--space-3); }

/* ---------- Cursor glow (desktop pointers only) ---------- */
.cursor-glow { display: none; }
@media (hover: hover) and (pointer: fine) {
  .cursor-glow {
    display: block;
    position: fixed; top: 0; left: 0; z-index: 0;
    width: 36rem; height: 36rem; border-radius: 50%;
    background: radial-gradient(circle, var(--glow), transparent 60%);
    transform: translate(-50%, -50%);
    pointer-events: none; opacity: 0;
    transition: opacity var(--dur-slow);
    will-change: transform;
  }
  .cursor-glow.is-active { opacity: 1; }
}
main, .site-header, .site-footer { position: relative; z-index: 1; }

/* ---------- Mobile navigation ---------- */
@media (max-width: 47.99rem) {
  .brand__name { display: none; }
  .nav-toggle {
    display: inline-flex; align-items: center; gap: var(--space-2);
    padding: 0.45em 0.9em; border-radius: 999px;
    border: 1px solid var(--line); background: transparent; cursor: pointer;
    font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-2);
  }
  .nav-toggle__bar {
    width: 14px; height: 1px; background: currentColor; position: relative;
  }
  .nav-toggle__bar::before, .nav-toggle__bar::after {
    content: ""; position: absolute; left: 0; width: 100%; height: 1px; background: currentColor;
    transition: transform var(--dur-fast);
  }
  .nav-toggle__bar::before { top: -4px; }
  .nav-toggle__bar::after { top: 4px; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: transparent; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { transform: translateY(4px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar::after { transform: translateY(-4px) rotate(-45deg); }

  .nav-list {
    position: fixed; inset: var(--header-h) 0 auto 0;
    display: grid; gap: 0;
    padding: var(--space-4) var(--gutter) var(--space-6);
    background: var(--bg-elev); border-bottom: 1px solid var(--line);
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: transform var(--dur) var(--ease-out), opacity var(--dur), visibility 0s linear var(--dur);
  }
  .nav-list.is-open { transform: none; opacity: 1; visibility: visible; transition-delay: 0s; }
  .nav-list a { display: block; padding: var(--space-3) 0; font-size: var(--step-1); border-bottom: 1px solid var(--line); }
  .nav-list a::after { display: none; }
}

/* ---------- Reveal on scroll ---------- */
.js [data-reveal] {
  opacity: 0; transform: translateY(18px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }
/* Stagger siblings slightly */
.js [data-reveal]:nth-child(2) { transition-delay: 60ms; }
.js [data-reveal]:nth-child(3) { transition-delay: 120ms; }
.js [data-reveal]:nth-child(4) { transition-delay: 180ms; }
.js [data-reveal]:nth-child(5) { transition-delay: 240ms; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .ticker__track { animation: none; flex-wrap: wrap; width: auto; }
  .ticker { mask-image: none; -webkit-mask-image: none; }
  .cursor-glow { display: none; }
}

/* ---------- Print ---------- */
@media print {
  .site-header, .ticker, .cursor-glow, .theme-toggle, .hero__actions, .copy-button { display: none !important; }
  body { background: #fff; color: #000; }
  .js [data-reveal] { opacity: 1; transform: none; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; color: #555; }
}