/* ==========================================================================
   ONU — meetonu.com
   Palette derived from the project's own artifacts:
   drafting paper, graphite, PCB green, printed-model orange.
   ========================================================================== */

/* Self-hosted fonts — no Google Fonts CDN call, no third-party request, no GDPR exposure. */
@font-face {
  font-family: 'Archivo Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  src: url('../fonts/archivo-latin-wdth-normal.woff2') format('woff2-variations');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'Archivo Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  src: url('../fonts/archivo-latin-ext-wdth-normal.woff2') format('woff2-variations');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'Newsreader Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 200 800;
  src: url('../fonts/newsreader-latin-opsz-normal.woff2') format('woff2-variations');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'Newsreader Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 200 800;
  src: url('../fonts/newsreader-latin-ext-opsz-normal.woff2') format('woff2-variations');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url('../fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url('../fonts/ibm-plex-mono-latin-ext-400-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 500;
  src: url('../fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 500;
  src: url('../fonts/ibm-plex-mono-latin-ext-500-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

:root {
  --paper:    #dfdbd2;
  --paper-lo: #d4cfc4;
  --card:     #f0eee8;
  --ink:      #1b1a17;
  --graphite: #6b6862;
  --rule:     #b6b0a4;
  --board:    #14503f;
  --board-lo: #0e3b2e;
  --signal:   #d96a1e;

  --display: 'Archivo Variable', system-ui, sans-serif;
  --body:    'Newsreader Variable', Georgia, serif;
  --mono:    'IBM Plex Mono', ui-monospace, monospace;

  /* device proportion: 55 x 30 x 10mm */
  --radius:  14px;
  --radius-s: 8px;

  --measure: 62ch;
  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --section: clamp(4.5rem, 11vw, 9rem);
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: clamp(1.02rem, 0.98rem + 0.25vw, 1.16rem);
  line-height: 1.62;
  font-optical-sizing: auto;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

::selection { background: var(--signal); color: #fff; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

/* ---------- type ---------- */

h1, h2, h3, .display {
  font-family: var(--display);
  font-weight: 600;
  font-stretch: 112%;
  letter-spacing: -0.018em;
  line-height: 1.06;
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: clamp(2.6rem, 1.6rem + 4.6vw, 5.4rem); }
h2 { font-size: clamp(1.9rem, 1.4rem + 2.2vw, 3.1rem); }
h3 { font-size: clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem); font-stretch: 105%; letter-spacing: -0.01em; }

p { margin: 0 0 1.1em; max-width: var(--measure); }
p:last-child { margin-bottom: 0; }

.lede {
  font-size: clamp(1.2rem, 1.05rem + 0.7vw, 1.6rem);
  line-height: 1.46;
  color: #2c2a26;
}

.tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--graphite);
  display: block;
  margin-bottom: 1.4rem;
}

.tag::before {
  content: "";
  display: inline-block;
  width: 1.6rem;
  height: 1px;
  background: var(--rule);
  vertical-align: 0.28em;
  margin-right: 0.7rem;
}

/* ---------- layout ---------- */

.wrap {
  width: min(1240px, 100% - (var(--gutter) * 2));
  margin-inline: auto;
}

.section { padding-block: var(--section); }
.section--tight { padding-block: calc(var(--section) * 0.6); }

.rule-top { border-top: 1px solid var(--rule); }

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.05rem;
}

.brand {
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 118%;
  font-size: 1.34rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand span { color: var(--signal); }

.nav__links {
  display: flex;
  gap: clamp(1rem, 2.4vw, 2.3rem);
  align-items: center;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.nav__links a {
  text-decoration: none;
  color: var(--graphite);
  padding-block: 0.3rem;
  border-bottom: 1px solid transparent;
  transition: color 0.18s, border-color 0.18s;
}

.nav__links a:hover { color: var(--ink); border-bottom-color: var(--ink); }
.nav__links a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--signal); }

@media (max-width: 720px) {
  .nav__inner { flex-direction: column; align-items: flex-start; gap: 0.7rem; }
  .nav__links { flex-wrap: wrap; gap: 0.9rem 1.3rem; }
}

/* ---------- hero ---------- */

.hero { padding-block: clamp(3.5rem, 7vw, 7rem) clamp(3rem, 6vw, 6rem); }

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.hero__title { margin-bottom: 1.6rem; }

.hero__sub {
  font-size: clamp(1.1rem, 1rem + 0.6vw, 1.42rem);
  line-height: 1.5;
  max-width: 34ch;
  margin-bottom: 2.2rem;
}

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
}

/* ---------- buttons ---------- */

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.79rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-s);
  border: 1px solid var(--ink);
  transition: background 0.18s, color 0.18s, transform 0.18s;
}

.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--board); border-color: var(--board); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn:active { transform: translateY(1px); }

/* ---------- figures + the measurement signature ---------- */

.fig { margin: 0; position: relative; }

.fig__img {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper-lo);
}

.fig__img img { width: 100%; height: 100%; object-fit: cover; }

.fig__cap {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--graphite);
  margin-top: 0.85rem;
  display: flex;
  gap: 0.55rem;
  align-items: baseline;
}

.fig__cap b { font-weight: 500; color: var(--ink); }

/* dimension callout — lifted from the hand-drawn dimension sheet */
.dim {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.09em;
  color: var(--graphite);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.dim::before,
.dim::after {
  content: "";
  height: 1px;
  background: var(--rule);
  flex: 1;
  position: relative;
}

.dim--left::after { display: none; }
.dim--left::before { flex: 0 0 2.4rem; }

.spec-line {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.9rem;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--graphite);
  padding-block: 0.72rem;
  border-bottom: 1px solid var(--rule);
}

.spec-line span:first-child { color: var(--ink); letter-spacing: 0.03em; }
.spec-line i { border-bottom: 1px dotted var(--rule); transform: translateY(-0.28em); }
.spec-line b { font-weight: 500; color: var(--ink); }

/* image placeholder — replace with <img> once assets are dropped in */
.ph {
  position: relative;
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(-45deg, transparent 0 9px, rgba(107,104,98,0.055) 9px 18px),
    var(--paper-lo);
  border: 1px solid var(--rule);
  display: grid;
  place-items: center;
  min-height: 200px;
  padding: 1.6rem;
}

.ph::after {
  content: attr(data-img);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--graphite);
  text-align: center;
  line-height: 1.6;
}

.ph--wide { aspect-ratio: 55 / 30; }
.ph--tall { aspect-ratio: 3 / 4; }
.ph--sq   { aspect-ratio: 1 / 1; }
.ph--band { aspect-ratio: 21 / 8; min-height: 240px; }

/* ---------- value grid ---------- */

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1.6rem, 3.4vw, 3.4rem); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.4rem, 2.8vw, 2.6rem); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.2rem, 2.4vw, 2rem); }

@media (max-width: 940px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.value { padding-top: 1.3rem; border-top: 1px solid var(--rule); }
.value h3 { margin-bottom: 0.65rem; }
.value p { font-size: 0.97rem; color: #35332e; }

.value__no {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--signal);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.9rem;
}

/* ---------- reversed board section ---------- */

.board {
  background: var(--board);
  color: #e6e9e5;
}

.board h2, .board h3 { color: #fff; }
.board .tag { color: #8fb3a5; }
.board .tag::before { background: #35705d; }
.board p { color: #cbd6d0; }
.board .spec-line { border-color: #2a6a56; color: #9dbcae; }
.board .spec-line span:first-child,
.board .spec-line b { color: #fff; }
.board .spec-line i { border-bottom-color: #2a6a56; }
.board .btn { border-color: #7fae9c; color: #fff; }
.board .btn:hover { background: #fff; color: var(--board); }
.board .ph {
  background:
    repeating-linear-gradient(-45deg, transparent 0 9px, rgba(255,255,255,0.05) 9px 18px),
    var(--board-lo);
  border-color: #2a6a56;
}
.board .ph::after { color: #8fb3a5; }
.board .fig__cap { color: #8fb3a5; }
.board .fig__cap b { color: #fff; }

/* ---------- status ---------- */

.status {
  background: var(--card);
  border-radius: var(--radius);
  padding: clamp(1.6rem, 3.4vw, 2.8rem);
}

.status__now {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.status__now::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--signal);
}

/* ---------- doors (cross-links) ---------- */

.door {
  display: block;
  text-decoration: none;
  padding: 1.4rem 1.5rem 1.6rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: transparent;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.door:hover { background: var(--card); border-color: var(--ink); transform: translateY(-2px); }
.door h3 { margin-bottom: 0.5rem; }
.door p { font-size: 0.94rem; color: var(--graphite); margin: 0; }

.door__go {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--signal);
  letter-spacing: 0.06em;
  margin-top: 1.1rem;
  display: block;
}

/* ---------- notes (instagram language cards) ---------- */

.note {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink);
  color: #fff;
  aspect-ratio: 4 / 5;
  display: grid;
  place-items: center;
  padding: 1.6rem;
  text-align: center;
  font-family: var(--display);
  font-weight: 600;
  font-stretch: 108%;
  font-size: 1.02rem;
  line-height: 1.28;
  text-decoration: none;
  transition: transform 0.2s;
}

.note:hover { transform: translateY(-3px); }

/* ---------- person ---------- */

.person { display: grid; grid-template-columns: 200px 1fr; gap: clamp(1.5rem, 3.5vw, 3rem); align-items: start; }
@media (max-width: 620px) { .person { grid-template-columns: 1fr; } }
.person .ph { min-height: 0; }

/* ---------- form ---------- */

.field { margin-bottom: 1.25rem; max-width: 34rem; }

.field label {
  display: block;
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.06em;
  color: var(--graphite);
  margin-bottom: 0.5rem;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  font-family: var(--body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius-s);
  padding: 0.8rem 0.95rem;
}

.field textarea { min-height: 8rem; resize: vertical; }

.field input:focus,
.field textarea:focus,
.field select:focus { border-color: var(--ink); outline: none; }

/* ---------- footer ---------- */

.foot {
  border-top: 1px solid var(--rule);
  padding-block: 3rem 3.5rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--graphite);
  letter-spacing: 0.02em;
}

.foot a { text-decoration: none; border-bottom: 1px solid var(--rule); }
.foot a:hover { color: var(--ink); border-bottom-color: var(--ink); }

.foot__grid { display: flex; flex-wrap: wrap; gap: 2rem 3.5rem; justify-content: space-between; }
.foot__col p { margin-bottom: 0.45rem; max-width: 30ch; }
.foot__links { display: flex; flex-direction: column; gap: 0.5rem; }

.foot__prog { margin-top: 2.6rem; padding-top: 1.6rem; border-top: 1px solid var(--rule); }
.foot__prog p { max-width: 60ch; line-height: 1.7; }

/* ---------- reveal ---------- */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .door:hover, .note:hover { transform: none; }
}