/* =========================================================
   Machapuchare Labs — style.css
   ========================================================= */

:root {
  --bg: #07090f;
  --bg-2: #0c1019;
  --ink: #ecebe6;
  --ink-dim: rgba(236, 235, 230, 0.66);
  --ink-mute: rgba(236, 235, 230, 0.4);
  --line: rgba(236, 235, 230, 0.1);
  --line-strong: rgba(236, 235, 230, 0.22);

  --glow: #ff8b5e;      /* alpenglow */
  --glow-2: #ff5d7e;
  --ice: #9fd2ff;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Instrument Serif", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --pad: clamp(20px, 5vw, 72px);
  --max: 1280px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  overflow-wrap: break-word;
}

::selection { background: var(--glow); color: #14080a; }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; margin: 0; padding: 0; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.03em; line-height: 1.05; }
strong { font-weight: 600; color: var(--ink); }

.mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

/* --------- grain --------- */
.grain {
  position: fixed; inset: -50%;
  width: 200%; height: 200%;
  pointer-events: none; z-index: 60;
  opacity: 0.055;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation: grain 1.2s steps(6) infinite;
  mix-blend-mode: screen;
}
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-2%, 1%); }
  40% { transform: translate(1%, -2%); }
  60% { transform: translate(-1%, 2%); }
  80% { transform: translate(2%, -1%); }
}

/* --------- buttons --------- */
.btn {
  position: relative;
  display: inline-flex; align-items: center; gap: 0.5em;
  padding: 0.85em 1.4em;
  border-radius: 999px;
  font-size: 0.92rem; font-weight: 500;
  letter-spacing: -0.01em;
  border: 1px solid var(--line-strong);
  transition: transform .5s var(--ease), background .35s, border-color .35s, color .35s;
  will-change: transform;
}
.btn-sm { padding: 0.6em 1.1em; font-size: 0.82rem; }
.btn-ghost { color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); background: rgba(236,235,230,.06); }
.btn-solid {
  color: #0b0d14; background: var(--ink); border-color: var(--ink);
}
.btn-solid:hover { background: #fff; }
.btn:active { transform: scale(.97); }

/* --------- nav --------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 18px var(--pad);
  transition: padding .4s var(--ease), background .4s, border-color .4s, backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  padding: 12px var(--pad);
  background: rgba(7, 9, 15, 0.55);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { width: 20px; height: 20px; fill: var(--ink); }
.brand-name {
  font-weight: 600; letter-spacing: -0.02em; font-size: 0.98rem;
}
.brand-name em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400;
  margin-left: 0.28em; color: var(--ink-dim); font-size: 1.12em;
}
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  position: relative; font-size: 0.9rem; color: var(--ink-dim);
  transition: color .3s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -4px;
  height: 1px; background: var(--ink);
  transition: right .45s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { right: 0; }

/* --------- hero --------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: flex-end;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(120% 70% at 50% 0%, #10162a 0%, var(--bg) 60%);
}
.stars {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
.sky { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.glow {
  position: absolute; border-radius: 50%;
  filter: blur(70px);
  opacity: .55;
  will-change: transform;
}
.glow-a {
  width: 60vmax; height: 60vmax;
  left: 50%; top: 45%;
  transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(255,139,94,.55), rgba(255,93,126,.18) 55%, transparent 75%);
  animation: drift-a 16s ease-in-out infinite alternate;
}
.glow-b {
  width: 46vmax; height: 46vmax;
  left: 72%; top: 30%;
  transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(159,210,255,.32), transparent 70%);
  animation: drift-b 22s ease-in-out infinite alternate;
  opacity: .4;
}
@keyframes drift-a {
  from { transform: translate(-54%, -52%) scale(1); }
  to   { transform: translate(-46%, -44%) scale(1.12); }
}
@keyframes drift-b {
  from { transform: translate(-50%, -50%) scale(1); }
  to   { transform: translate(-58%, -40%) scale(0.9); }
}

.mountain {
  position: absolute; left: 0; right: 0; bottom: 0; height: 82%;
  z-index: 1; pointer-events: none;
}
.mountain svg { width: 100%; height: 100%; }
.mountain .layer { will-change: transform; transform-origin: 50% 100%; }

.peak-glow { animation: breathe 6s ease-in-out infinite; }
@keyframes breathe { 0%,100% { opacity: .75; } 50% { opacity: 1; } }

.rim {
  stroke-dasharray: 600; stroke-dashoffset: 600;
  animation: draw 2.4s var(--ease) .6s forwards;
  filter: drop-shadow(0 0 6px rgba(255,139,94,.8));
}
.route {
  stroke-dasharray: 4 6;
  stroke-dashoffset: 0;
  opacity: 0;
  animation: route-in 1.2s ease 1.6s forwards, route-flow 6s linear 1.6s infinite;
}
@keyframes route-in { to { opacity: 1; } }
@keyframes route-flow { to { stroke-dashoffset: -100; } }
.route-dot, .route-ring, .route-label { opacity: 0; animation: fade-in .8s ease 2.6s forwards; }
.route-ring { animation: fade-in .8s ease 2.6s forwards, ping 2.4s ease-out 3.2s infinite; transform-origin: 968px 105px; }
.route-label { font: 500 10px/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade-in { to { opacity: 1; } }
@keyframes ping {
  0% { transform: scale(1); opacity: .9; }
  100% { transform: scale(5); opacity: 0; }
}

.hero-copy {
  position: relative; z-index: 2;
  width: min(100% - 2 * var(--pad), var(--max));
  margin: 0 auto;
  padding: 150px 0 clamp(72px, 12vh, 128px);
  display: flex; flex-direction: column; align-items: flex-start; gap: 26px;
  will-change: transform, opacity;
}
.eyebrow { color: var(--ink-mute); }
.hero h1 {
  font-size: clamp(3rem, 9vw, 8.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
  font-weight: 600;
}
.hero h1 em {
  font-family: var(--font-serif);
  font-style: italic; font-weight: 400;
  letter-spacing: -0.02em;
  font-size: 1.14em; line-height: 0.9;
  background: linear-gradient(100deg, #ffd4bd 0%, var(--glow) 45%, var(--glow-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-right: .1em;
}
.hero .lede {
  max-width: 34rem;
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  color: var(--ink-dim);
  line-height: 1.75;
  text-wrap: pretty;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 6px; }

.reveal-up {
  opacity: 0; transform: translateY(26px);
  animation: reveal-up 1.1s var(--ease) forwards;
  animation-delay: calc(0.35s + var(--d, 0) * 0.13s);
}
@keyframes reveal-up { to { opacity: 1; transform: none; } }

.scroll-cue {
  position: absolute; right: var(--pad); bottom: 28px; z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--ink-mute);
  opacity: 0; animation: fade-in 1s ease 1.8s forwards;
}
.scroll-cue i {
  width: 1px; height: 44px; display: block;
  background: linear-gradient(to bottom, var(--ink), transparent);
  transform-origin: top;
  animation: cue 1.8s var(--ease) infinite;
}
@keyframes cue { 0% { transform: scaleY(0); opacity: 0; } 30% { opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }

/* --------- marquee --------- */
.marquee {
  position: relative; z-index: 2;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  overflow: hidden; background: var(--bg);
  padding: 18px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: flex; align-items: center; gap: 34px;
  width: max-content;
  animation: marquee 34s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  font-family: var(--font-serif); font-style: italic;
  font-size: clamp(1.4rem, 2.6vw, 2.2rem);
  color: var(--ink-dim); white-space: nowrap; letter-spacing: -0.01em;
}
.marquee-track i { color: var(--glow); font-style: normal; font-size: .8rem; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* --------- sections --------- */
.section {
  position: relative;
  width: min(100% - 2 * var(--pad), var(--max));
  margin: 0 auto;
  padding: clamp(88px, 10vw, 140px) 0;
}
.section + .section { border-top: 1px solid var(--line); }

.section-head {
  display: flex; align-items: baseline; gap: 20px;
  margin-bottom: clamp(40px, 5vw, 64px);
}
.section-head .index { color: var(--glow); }
.section-head h2 {
  font-family: var(--font-serif); font-weight: 400; font-style: italic;
  font-size: clamp(2rem, 4.2vw, 3.4rem); letter-spacing: -0.02em;
}

/* reveal on scroll */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
  transition-delay: calc(var(--d, 0) * 0.12s);
}
.reveal.in { opacity: 1; transform: none; }

/* --------- about --------- */
.about-grid {
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}
.about-col p + p { margin-top: 1.1em; }
.about-col > p { color: var(--ink-dim); font-size: 1.06rem; line-height: 1.8; text-wrap: pretty; }
.word {
  display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap;
  font-size: clamp(1.8rem, 3vw, 2.6rem) !important;
  font-weight: 600; letter-spacing: -0.03em;
  color: var(--ink) !important; line-height: 1.1 !important;
  margin-bottom: 24px;
}
.word .mono { color: var(--ink-mute); }
blockquote {
  margin: 0 0 24px;
  font-size: clamp(1.7rem, 3.1vw, 2.7rem);
  line-height: 1.2; letter-spacing: -0.03em; font-weight: 600;
  text-wrap: balance;
}
blockquote em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400; font-size: 1.12em;
  color: var(--glow);
}

.stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  margin-top: clamp(56px, 7vw, 96px);
  border-top: 1px solid var(--line);
}
.stats li {
  padding: 32px 28px 28px 0;
  display: flex; flex-direction: column; gap: 8px;
  border-right: 1px solid var(--line);
}
.stats li + li { padding-left: 28px; }
.stats li:last-child { border-right: 0; }
.stats .num {
  font-size: clamp(2.6rem, 5.6vw, 4.8rem);
  font-weight: 600; letter-spacing: -0.045em; line-height: 1;
  font-variant-numeric: tabular-nums;
  display: inline-flex; align-items: baseline; gap: .1em;
}
.stats .num small { font-size: .38em; font-weight: 500; color: var(--ink-mute); letter-spacing: 0; }
.stats .inf {
  font-family: var(--font-serif); font-style: italic;
  background: linear-gradient(100deg, #ffd4bd, var(--glow), var(--glow-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-right: .1em;
}
.stats .label { color: var(--ink-mute); }

/* --------- build --------- */
.section-lede {
  max-width: 46rem;
  font-size: clamp(1.15rem, 1.9vw, 1.6rem);
  line-height: 1.5; letter-spacing: -0.02em;
  color: var(--ink-dim);
  margin-bottom: clamp(48px, 6vw, 80px);
  text-wrap: pretty;
}
.cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.card {
  --mx: 50%; --my: 50%;
  position: relative;
  padding: 30px 28px 34px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(236,235,230,.045), rgba(236,235,230,.015));
  border: 1px solid var(--line);
  overflow: hidden;
  min-height: 290px;
  display: flex; flex-direction: column; gap: 18px;
  transition: transform .6s var(--ease), border-color .4s;
}
.card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(360px circle at var(--mx) var(--my), rgba(255,139,94,.16), transparent 60%);
  opacity: 0; transition: opacity .5s;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.card:hover::before { opacity: 1; }
.card-tag { color: var(--ink-mute); }
.card h3 { font-size: clamp(1.4rem, 1.9vw, 1.75rem); letter-spacing: -0.03em; margin-top: auto; }
.card p { color: var(--ink-dim); line-height: 1.7; }
.card-tbd { border-style: dashed; background: transparent; }
.card-tbd::before {
  background: radial-gradient(360px circle at var(--mx) var(--my), rgba(159,210,255,.14), transparent 60%);
}
.card-tbd h3 {
  font-family: var(--font-serif); font-style: italic; font-weight: 400; font-size: clamp(1.6rem, 2.1vw, 2rem);
}
.blink { color: var(--ice); animation: blink 1.6s steps(2, start) infinite; }
@keyframes blink { to { visibility: hidden; } }

.principles {
  margin-top: clamp(56px, 7vw, 88px);
  border-top: 1px solid var(--line);
}
.principles li {
  display: grid; grid-template-columns: 48px 1.1fr 1.6fr; gap: 20px; align-items: baseline;
  padding: 22px 0; border-bottom: 1px solid var(--line);
  transition: padding-left .5s var(--ease);
}
.principles li:hover { padding-left: 10px; }
.principles li .mono { color: var(--glow); }
.principles li strong { font-size: 1.15rem; letter-spacing: -0.02em; }
.principles li span:last-child { color: var(--ink-dim); }

/* --------- work / expeditions --------- */
.projects {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
.project {
  position: relative;
  display: flex; flex-direction: column;
  border-radius: 22px; overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(236,235,230,.04), rgba(236,235,230,.012));
  transition: transform .6s var(--ease), border-color .4s;
}
.project:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.project-visual {
  aspect-ratio: 16 / 10; overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.project-visual svg { width: 100%; height: 100%; display: block; transition: transform 1.2s var(--ease); }
.project:hover .project-visual svg { transform: scale(1.03); }
.project-body { padding: 26px 28px 30px; display: flex; flex-direction: column; gap: 14px; }
.project-meta { display: flex; align-items: center; gap: 14px; color: var(--ink-mute); flex-wrap: wrap; }
.project-meta .status { display: inline-flex; align-items: center; gap: 7px; color: var(--ice); margin-left: auto; }
.project-meta .status i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--ice);
  box-shadow: 0 0 0 0 rgba(159,210,255,.6);
  animation: status-pulse 2.2s ease-out infinite;
}
@keyframes status-pulse { 0% { box-shadow: 0 0 0 0 rgba(159,210,255,.6); } 100% { box-shadow: 0 0 0 8px rgba(159,210,255,0); } }
.project h3 { font-size: clamp(1.5rem, 2vw, 1.9rem); letter-spacing: -0.03em; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.project h3 .wt { color: var(--ink-mute); font-weight: 500; }
.project p { color: var(--ink-dim); line-height: 1.7; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.chips li {
  font-size: .78rem; color: var(--ink-dim);
  padding: .35em .8em; border-radius: 999px;
  border: 1px solid var(--line-strong);
}

/* sonar ping (trench) */
.ping { transform-origin: 160px 150px; animation: ping-out 3.2s ease-out infinite; }
.ping-2 { animation-delay: 1.6s; }
@keyframes ping-out { 0% { transform: scale(1); opacity: .9; } 100% { transform: scale(4.2); opacity: 0; } }
.rig { animation: bob 4s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }
.bubbles circle { animation: rise 3.6s linear infinite; }
.bubbles circle:nth-child(2) { animation-delay: 1.2s; }
.bubbles circle:nth-child(3) { animation-delay: 2.4s; }
@keyframes rise { 0% { transform: translateY(0); opacity: .6; } 100% { transform: translateY(-40px); opacity: 0; } }

/* --------- contact --------- */
.contact { text-align: left; }
.contact-big {
  font-size: clamp(2.2rem, 5.2vw, 4.6rem);
  line-height: 1.05; letter-spacing: -0.04em; font-weight: 600;
  margin-bottom: clamp(36px, 5vw, 56px);
  text-wrap: balance;
}
.contact-big em {
  font-family: var(--font-serif); font-style: italic; font-weight: 400; font-size: 1.12em;
  background: linear-gradient(100deg, #ffd4bd, var(--glow), var(--glow-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-right: .1em;
}
.email {
  position: relative;
  display: inline-flex; align-items: center; gap: 18px;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.2vw, 1.6rem); letter-spacing: -0.01em;
  padding-bottom: 10px;
}
.email::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--line-strong);
}
.email::before {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px;
  background: var(--glow); z-index: 1; transition: right .6s var(--ease);
}
.email:hover::before { right: 0; }
.email svg { width: 1.1em; height: 1.1em; transition: transform .5s var(--ease); }
.email:hover svg { transform: translateX(8px); }

/* --------- footer --------- */
.footer {
  width: min(100% - 2 * var(--pad), var(--max));
  margin: 0 auto;
  padding: 36px 0 44px;
  border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--ink-mute); font-size: .9rem;
}
.footer-left { display: inline-flex; align-items: center; gap: 10px; color: var(--ink-dim); }
.footer .brand-mark { width: 16px; height: 16px; fill: var(--ink-dim); }

/* --------- responsive --------- */
.br-wide { display: none; }
@media (min-width: 900px) { .br-wide { display: inline; } }

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .card { min-height: 0; }
  .projects { grid-template-columns: 1fr; }
  .principles li { grid-template-columns: 36px 1fr; }
  .principles li span:last-child { grid-column: 2; }
  .footer { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 900px) {
  .route-label { display: none; }
  .scroll-cue { display: none; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .mountain { height: 64%; }
  .stats { grid-template-columns: 1fr; }
  .stats li { border-right: 0; border-bottom: 1px solid var(--line); padding: 22px 0 !important; }
  .stats li:last-child { border-bottom: 0; }
  .hero-copy { padding: 120px 0 72px; gap: 20px; }
}

/* --------- reduced motion --------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; animation-iteration-count: 1 !important; transition-duration: .001s !important; }
  .reveal, .reveal-up { opacity: 1; transform: none; }
  .marquee-track { animation: none; }
  .grain { animation: none; }
}