/* ============================================================
   ALR Advisory — web design system
   Extends the brand: Syne display, Archivo text, true black on
   warm paper, the vertical-rule divider as a recurring motif.
   ============================================================ */

:root {
  --black:    #000000;
  --ink:      #0a0a0b;
  --paper:    #f7f5f0;
  --paper-2:  #efece4;
  --paper-3:  #e7e3d9;
  --white:    #ffffff;

  --line:     rgba(0,0,0,0.12);
  --line-2:   rgba(0,0,0,0.07);
  --mute:     rgba(0,0,0,0.56);
  --mute-2:   rgba(0,0,0,0.40);

  /* on-dark */
  --paper-on-dark: rgba(247,245,240,0.72);
  --line-on-dark:  rgba(247,245,240,0.16);

  --display: 'Syne', system-ui, sans-serif;
  --body:    'Archivo', system-ui, sans-serif;

  --container: 1240px;
  --gutter: clamp(22px, 5vw, 88px);
  --nav-h: 76px;

  --r: 5px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--black); color: var(--paper); }

/* ---- Layout ---- */
.container { max-width: var(--container); margin: 0 auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(64px, 9vw, 132px); }
.section--tight { padding-block: clamp(48px, 6vw, 84px); }
.view > .section:first-child { padding-top: clamp(48px, 7vw, 96px); }
.dark { background: var(--black); color: var(--paper); }
.dark .eyebrow, .dark .sec-num, .dark .muted { color: var(--paper-on-dark); }
.divider { height: 1px; background: var(--line); border: 0; margin: 0; }
.dark .divider { background: var(--line-on-dark); }

/* ---- Type ---- */
.eyebrow {
  font-family: var(--body);
  font-weight: 700; font-size: 12px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--mute);
}
.display {
  font-family: var(--display);
  font-weight: 800; letter-spacing: -0.02em; line-height: 0.98;
  margin: 0;
}
.h-hero  { font-size: clamp(44px, 7.4vw, 104px); }
.h1      { font-size: clamp(36px, 5vw, 68px); }
.h2      { font-size: clamp(28px, 3.6vw, 46px); }
.h3      { font-family: var(--display); font-weight: 700; font-size: clamp(20px, 2vw, 26px); letter-spacing: -0.01em; line-height: 1.1; margin: 0; }
.lede    { font-size: clamp(18px, 1.55vw, 22px); line-height: 1.55; color: rgba(0,0,0,0.74); font-weight: 450; }
.dark .lede { color: var(--paper-on-dark); }
.muted   { color: var(--mute); }
.measure { max-width: 60ch; }
.measure-sm { max-width: 46ch; }

/* Section label: 01 · TITLE ───────── (echoes the logo sheet) */
.sec-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: clamp(28px, 4vw, 52px); }
.sec-num  { font-family: var(--display); font-weight: 800; font-size: 13px; color: var(--ink); }
.sec-title{ font-weight: 700; font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; white-space: nowrap; }
.sec-rule { flex: 1; height: 1px; background: var(--line); align-self: center; }
.dark .sec-rule { background: var(--line-on-dark); }

/* ---- Buttons / links ---- */
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--body); font-weight: 600; font-size: 14px;
  letter-spacing: 0.02em; padding: 14px 22px; border-radius: var(--r);
  border: 1px solid var(--black); background: var(--black); color: var(--paper);
  cursor: pointer; transition: transform .18s ease, background .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--black); color: var(--paper); }
.dark .btn { background: var(--paper); color: var(--black); border-color: var(--paper); }
.dark .btn--ghost { background: transparent; color: var(--paper); border-color: var(--line-on-dark); }
.dark .btn--ghost:hover { background: var(--paper); color: var(--black); }
.btn .arr { transition: transform .18s ease; }
.btn:hover .arr { transform: translateX(3px); }

/* text link with rule */
.tlink {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 15px; padding-bottom: 3px;
  border-bottom: 1.5px solid var(--ink); transition: gap .18s ease;
}
.tlink:hover { gap: 14px; }
.dark .tlink { border-color: var(--paper); }

/* ---- Nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid var(--line-2);
}
.nav .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.nav__logo { cursor: pointer; display: inline-flex; align-items: center; }
.nav__links { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 40px); }
.nav__link {
  font-weight: 500; font-size: 15px; color: var(--mute);
  position: relative; padding: 6px 0; cursor: pointer; transition: color .16s ease;
}
.nav__link:hover { color: var(--ink); }
.nav__link.is-active { color: var(--ink); }
.nav__link.is-active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 1.5px; background: var(--ink);
}
.nav__cta { margin-left: clamp(6px, 1vw, 16px); }
.nav__burger { display: none; }

/* ---- Views ---- */
.view { display: none; }
.view.is-active { display: block; }

/* ---- Hero ---- */
.hero { padding-top: clamp(48px, 7vw, 96px); padding-bottom: clamp(56px, 8vw, 110px); }
.hero__eyebrow { margin-bottom: 26px; }
.hero__title { font-size: clamp(40px, 6.4vw, 80px); margin-bottom: 30px; max-width: 16ch; }
.hero__title .rule {
  display: inline-block; width: 0.5ch; height: 0.82em; background: currentColor;
  margin: 0 0.18em; vertical-align: baseline; transform: translateY(0.04em);
}
.hero__row { display: flex; flex-wrap: wrap; gap: 18px 40px; align-items: center; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---- Credibility strip ---- */
.cred { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; }
.cred__item { font-family: var(--display); font-weight: 600; font-size: clamp(15px, 1.4vw, 19px); letter-spacing: -0.01em; }
.cred__dot { width: 4px; height: 4px; border-radius: 50%; background: var(--mute-2); }

/* ---- Stat (positioning block) ---- */
.stat-split { display: grid; grid-template-columns: auto 1px 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
.stat__fig { display: inline-block; }
.stat__num { font-family: var(--display); font-weight: 800; font-size: clamp(104px, 13vw, 178px); letter-spacing: -0.03em; line-height: 0.88; position: relative; display: inline-block; color: var(--paper); }
.stat__digits { display: inline-block; }
.stat__plus { position: absolute; left: 100%; bottom: 0.04em; font-size: 1.35em; line-height: 0.7; letter-spacing: 0; margin-left: 0.02em; }
.stat__slab { font-family: var(--display); font-weight: 800; text-transform: lowercase; font-size: clamp(17px, 1.7vw, 20px); letter-spacing: -0.01em; line-height: 1.18; margin-top: -2px; max-width: 24ch; color: #fff; }
.stat__rule { width: 1px; align-self: stretch; background: var(--line-on-dark); }
.stat__para { font-size: clamp(15px, 1.3vw, 17px); line-height: 1.55; color: var(--paper-on-dark); font-weight: 450; margin: 22px 0 0; max-width: 46ch; }
@media (max-width: 760px) {
  .stat-split { grid-template-columns: 1fr; gap: 28px; }
  .stat__rule { display: none; }
  .stat__para { margin-top: 0; }
}

/* ---- Grids ---- */
.grid { display: grid; gap: clamp(20px, 3vw, 40px); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.col-split { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(28px, 5vw, 72px); }
.col-split--about { grid-template-columns: 1.15fr 0.85fr; }

/* ---- Track cards (the two service streams) ---- */
.track {
  border: 1px solid var(--line); border-radius: var(--r);
  padding: clamp(26px, 3vw, 40px); background: var(--white);
  display: flex; flex-direction: column; gap: 22px;
}
.track--dark { background: var(--black); color: var(--paper); border-color: transparent; }
.track .tlink { margin-top: auto; align-self: flex-start; }
.track__tag { font-weight: 700; font-size: 11.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--mute); }
.track--dark .track__tag { color: var(--paper-on-dark); }
.track__title { font-family: var(--display); font-weight: 700; font-size: clamp(22px, 2.4vw, 30px); letter-spacing: -0.015em; line-height: 1.04; }
.track__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.track__list li {
  display: flex; align-items: baseline; gap: 12px;
  padding: 13px 0; border-top: 1px solid var(--line-2); font-size: 15.5px;
}
.track--dark .track__list li { border-color: var(--line-on-dark); }
.track__list li::before { content: ''; flex: 0 0 auto; width: 7px; height: 1.5px; background: currentColor; transform: translateY(0.7em); opacity: 0.6; }

/* ---- Service detail rows ---- */
.svc-rows { border-top: 1px solid var(--line); }
.svc-row {
  display: grid; grid-template-columns: 56px 1fr 1.3fr; gap: 24px; align-items: start;
  padding: clamp(22px, 2.6vw, 34px) 0; border-bottom: 1px solid var(--line);
}
.svc-row__n { font-family: var(--display); font-weight: 800; font-size: 14px; color: var(--mute-2); padding-top: 4px; }
.svc-row__t { font-family: var(--display); font-weight: 700; font-size: clamp(19px, 1.8vw, 24px); letter-spacing: -0.01em; line-height: 1.12; }
.svc-row__d { color: var(--mute); font-size: 15.5px; }

/* ---- Project / track-record rows ---- */
.proj { border-top: 1px solid var(--line); }
.proj__row {
  display: grid; grid-template-columns: 1.4fr 1fr 0.9fr; gap: 24px; align-items: baseline;
  padding: clamp(13px, 1.5vw, 19px) 0; border-bottom: 1px solid var(--line);
  transition: padding-left .2s ease;
}
.proj__row:hover { padding-left: 10px; }
.proj__title { font-family: var(--display); font-weight: 700; font-size: clamp(18px, 1.7vw, 23px); letter-spacing: -0.01em; }
.proj__meta { color: var(--mute); font-size: 14.5px; }
.proj__role { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); justify-self: start; }
.dark .proj, .dark .proj__row { border-color: var(--line-on-dark); }

/* ---- Approach principles ---- */
.principle { display: flex; flex-direction: column; gap: 12px; padding-top: 22px; border-top: 1.5px solid var(--ink); }
.dark .principle { border-color: var(--paper); }
.principle__n { font-family: var(--display); font-weight: 800; font-size: 13px; letter-spacing: 0.04em; }
.principle__t { font-family: var(--display); font-weight: 700; font-size: clamp(18px, 1.7vw, 22px); letter-spacing: -0.01em; line-height: 1.1; }
.principle__d { color: var(--mute); font-size: 15px; }
.dark .principle__d { color: var(--paper-on-dark); }

/* ---- About ---- */
.portrait { width: 100%; aspect-ratio: 4/5; border-radius: var(--r); }
.bio p { margin: 0 0 18px; }
.creds-list { list-style: none; margin: 0; padding: 0; }
.creds-list li { padding: 14px 0; border-top: 1px solid var(--line); display: flex; gap: 16px; align-items: baseline; font-size: 15.5px; }
.creds-list li span { font-family: var(--display); font-weight: 700; color: var(--mute-2); font-size: 13px; flex: 0 0 64px; }

/* ---- Contact ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 88px); }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.field label { font-size: 12.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.field input, .field select, .field textarea {
  font-family: var(--body); font-size: 16px; color: var(--ink);
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r);
  padding: 13px 15px; width: 100%; transition: border-color .16s ease;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--black); }
.contact-detail { padding: 16px 0; border-top: 1px solid var(--line); }
.contact-detail .k { font-size: 12.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); margin-bottom: 5px; }
.contact-detail .v { font-family: var(--display); font-weight: 600; font-size: clamp(18px, 1.7vw, 22px); letter-spacing: -0.01em; }
.form-done { padding: 28px 0; font-family: var(--display); font-weight: 700; font-size: 22px; letter-spacing: -0.01em; }

/* ---- Footer ---- */
.footer { background: var(--black); color: var(--paper); padding-block: clamp(48px, 6vw, 80px); }
.footer__top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 32px; align-items: flex-start; }
.footer__nav { display: flex; gap: 28px; flex-wrap: wrap; }
.footer__nav a { color: var(--paper-on-dark); font-size: 15px; cursor: pointer; transition: color .16s; }
.footer__nav a:hover { color: var(--paper); }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: clamp(36px, 5vw, 60px); padding-top: 22px; border-top: 1px solid var(--line-on-dark); font-size: 13px; color: var(--paper-on-dark); }

/* ---- image slot styling ---- */
image-slot { --is-bg: var(--paper-2); border-radius: var(--r); }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .col-split, .col-split--about, .contact-grid { grid-template-columns: 1fr; }
  .svc-row { grid-template-columns: 40px 1fr; }
  .svc-row__d { grid-column: 2; }
  .proj__row { grid-template-columns: 1fr 1fr; }
  .proj__role { grid-column: 1 / -1; }
  .nav__links { display: none; }
  .nav__burger {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border: 1px solid var(--line); border-radius: var(--r);
    background: transparent; cursor: pointer;
  }
  .nav__burger span { width: 18px; height: 1.5px; background: var(--ink); position: relative; }
  .nav__burger span::before, .nav__burger span::after { content: ''; position: absolute; left: 0; width: 18px; height: 1.5px; background: var(--ink); }
  .nav__burger span::before { top: -5px; } .nav__burger span::after { top: 5px; }
  .nav__links.is-open {
    display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 16px var(--gutter) 24px;
  }
  .nav__links.is-open .nav__cta { margin: 10px 0 0; }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .proj__row { grid-template-columns: 1fr; gap: 6px; }
}