/* ==========================================================================
   sulaimantidjani.com — Institutional Minimal
   Palette: paper / ink / single navy accent. Hairlines, not boxes.
   ========================================================================== */

:root {
  /* ---- Brand ----
     Navy  #071A33  — primary ink, drawn from the logo mark
     Gold  #AC8239  — single accent, used sparingly (rules, marks, eyebrows)
     Paper #FBFAF7  — warm off-white ground                                  */
  --navy:         #071A33;
  --navy-2:       #12294A;
  --gold:         #AC8239;
  --gold-soft:    #C9A461;
  --gold-wash:    #F4EDE0;

  --paper:        #FBFAF7;
  --paper-2:      #F4F2ED;
  --paper-3:      #EBE8E1;
  --ink:          #071A33;
  --ink-2:        #3F4C60;
  --ink-3:        #7B8698;
  --rule:         #E2DED5;
  --rule-strong:  #C9C4B8;
  /* Interactive text stays navy for contrast; gold is decorative only. */
  --accent:       #12294A;
  --accent-soft:  #2A4670;

  --serif: "Newsreader", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  /* Geometric sans that echoes the logo lettering — used for tracked uppercase UI. */
  --brandsans: "Jost", "Inter", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;

  --gut:   clamp(1.5rem, 5vw, 5rem);
  --maxw:  1200px;
  --headh: clamp(5.5rem, 8vw, 7rem);   /* header height — drives logo size + nav offsets */

  --ease:  cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 400; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--paper); padding: 0.75rem 1.25rem; font-size: 0.875rem;
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- layout primitives ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

/* Two-column institutional section: sticky label left, content right */
.sect { padding-block: clamp(4.5rem, 9vw, 8.5rem); border-top: 1px solid var(--rule); }
.sect__grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
  gap: clamp(2rem, 5vw, 5.5rem);
  align-items: start;
}
.sect__label { position: sticky; top: calc(var(--headh) + 2.75rem); }
.sect__label h2 { margin-top: 1.1rem; }

.eyebrow {
  font-family: var(--brandsans);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: var(--gold);
  flex: none;
}

/* ---------- type scale ---------- */
.display {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.55rem, 6.2vw, 4.9rem);
  line-height: 1.04;
  letter-spacing: -0.024em;
}
.h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  line-height: 1.12;
  letter-spacing: -0.018em;
}
.h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  line-height: 1.25;
  letter-spacing: -0.012em;
}
.lede {
  font-size: clamp(1.0625rem, 1.35vw, 1.25rem);
  line-height: 1.62;
  color: var(--ink-2);
  max-width: 46ch;
}
.body { color: var(--ink-2); max-width: 62ch; }
.body + .body { margin-top: 1.15em; }
.small { font-size: 0.875rem; color: var(--ink-3); }

/* ---------- header ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(251, 250, 247, 0.85);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-top: 3px solid var(--gold);   /* brand bar */
  border-bottom: 1px solid transparent;
  transition: border-bottom-color 0.35s var(--ease);
}
.site-head.is-stuck { border-bottom-color: var(--rule); }
.site-head__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: var(--headh);
}
/* Logo lockup in the header */
.brand { display: inline-flex; align-items: center; }
.brand img { height: clamp(2.75rem, 5vw, 4rem); width: auto; }
.brand__fallback {
  font-family: var(--brandsans);
  font-size: 0.9375rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 1.85rem); }
.nav a {
  font-family: var(--brandsans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-2);
  position: relative;
  padding-block: 0.35rem;
  transition: color 0.25s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0.1rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav__cta {
  border: 1px solid var(--gold);
  padding: 0.5rem 1.1rem !important;
  border-radius: 999px;
  color: var(--ink) !important;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.nav__cta::after { display: none !important; }
.nav__cta:hover { background: var(--navy); border-color: var(--navy); color: var(--paper) !important; }

.burger { display: none; width: 2.25rem; height: 2.25rem; position: relative; }
.burger i {
  position: absolute; left: 0.375rem; right: 0.375rem; height: 1px;
  background: var(--ink); transition: transform 0.35s var(--ease);
}
.burger i:nth-child(1) { top: 0.85rem; }
.burger i:nth-child(2) { top: 1.35rem; }
body.nav-open .burger i:nth-child(1) { transform: translateY(0.25rem) rotate(45deg); }
body.nav-open .burger i:nth-child(2) { transform: translateY(-0.25rem) rotate(-45deg); }

/* ---------- hero ---------- */
.hero { padding-top: clamp(4rem, 11vw, 9rem); padding-bottom: clamp(3.5rem, 7vw, 6rem); }
.hero__eyebrow { margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem); }
.hero h1 { max-width: 20ch; }
.hero h1 em { font-style: italic; color: var(--gold); }

/* Brand tagline under the hero */
.tagline {
  font-family: var(--brandsans);
  font-size: clamp(0.6875rem, 1.15vw, 0.8125rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin-top: clamp(2rem, 3.5vw, 2.75rem);
  padding-top: 1.35rem;
  border-top: 1px solid var(--rule);
  max-width: 46rem;
}
.hero__lede { margin-top: clamp(1.75rem, 3vw, 2.5rem); }
.hero__actions {
  margin-top: clamp(2.25rem, 4vw, 3rem);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--brandsans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  padding: 0.9rem 1.6rem;
  border-radius: 999px;
  background: var(--navy);
  color: var(--paper);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.btn:hover { background: var(--navy-2); box-shadow: inset 0 0 0 1px var(--gold); }
.btn svg { transition: transform 0.35s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--brandsans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--gold);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.link-arrow:hover { border-color: var(--navy); color: var(--navy); }
.link-arrow svg { transition: transform 0.35s var(--ease); }
.link-arrow:hover svg { transform: translateX(3px); }

/* credential strip */
.strip { border-top: 1px solid var(--rule); padding-block: 1.5rem; }
.strip__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem clamp(1.15rem, 2.6vw, 2.25rem);
  align-items: center;
}
.strip__item {
  font-family: var(--brandsans);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: clamp(1.15rem, 2.6vw, 2.25rem);
}
.strip__item:not(:last-child)::after {
  content: "";
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold);
  flex: none;
}

/* ---------- numbered focus list ---------- */
.stack { border-top: 1px solid var(--rule); }
.stack__row {
  border-bottom: 1px solid var(--rule);
  padding-block: clamp(1.75rem, 3.2vw, 2.5rem);
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  gap: 0 clamp(1rem, 2.5vw, 2rem);
  transition: background 0.4s var(--ease);
}
.stack__row:hover { background: rgba(244, 242, 237, 0.7); }
.stack__num {
  font-family: var(--brandsans);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--gold);
  padding-top: 0.5rem;
  font-variant-numeric: tabular-nums;
}
.stack__body p { margin-top: 0.6rem; color: var(--ink-2); max-width: 58ch; font-size: 0.9375rem; }
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.tag {
  font-family: var(--brandsans);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.stack__row:hover .tag { border-color: var(--gold-soft); }

/* ---------- insights list ---------- */
.entries { border-top: 1px solid var(--rule); }
.entry {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr) 2rem;
  gap: 0 clamp(1rem, 2.5vw, 2.25rem);
  align-items: start;
  padding-block: clamp(1.6rem, 3vw, 2.25rem);
  border-bottom: 1px solid var(--rule);
  transition: background 0.4s var(--ease);
}
.entry:hover { background: rgba(244, 242, 237, 0.8); }
.entry__meta {
  font-family: var(--brandsans);
  font-size: 0.6875rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: 0.4rem;
  line-height: 1.9;
}
.entry__meta b { display: block; font-weight: 500; color: var(--gold); }
.entry__title { transition: color 0.3s var(--ease); }
.entry:hover .entry__title { color: var(--accent); }
.entry__sum { margin-top: 0.55rem; color: var(--ink-2); font-size: 0.9375rem; max-width: 60ch; }
.entry__arrow {
  align-self: center;
  color: var(--ink-3);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.3s var(--ease), transform 0.35s var(--ease);
}
.entry:hover .entry__arrow { opacity: 1; transform: translateX(0); }

/* ---------- cards (advisory) ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.card {
  background: var(--paper);
  padding: clamp(1.5rem, 2.6vw, 2.1rem);
  transition: background 0.4s var(--ease);
}
.card:hover { background: var(--paper-2); }
.card__n {
  font-family: var(--brandsans); font-weight: 500;
  font-size: 0.6875rem; letter-spacing: 0.15em; color: var(--gold);
  text-transform: uppercase; display: block; margin-bottom: 1.25rem;
}
.card h3 { margin-bottom: 0.65rem; }
.card p { font-size: 0.9375rem; color: var(--ink-2); }
.card ul { margin-top: 1.1rem; display: grid; gap: 0.45rem; }
.card li {
  font-size: 0.8125rem; color: var(--ink-2);
  padding-left: 1rem; position: relative;
}
.card li::before {
  content: ""; position: absolute; left: 0; top: 0.65em;
  width: 0.4rem; height: 1px; background: var(--gold);
}

/* ---------- quote ---------- */
.quote { padding-block: clamp(4rem, 8vw, 7rem); border-top: 1px solid var(--rule); }
.quote blockquote {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.4rem, 3.1vw, 2.35rem);
  line-height: 1.3;
  letter-spacing: -0.015em;
  max-width: 36ch;
}
.quote blockquote span { color: var(--gold); font-style: italic; }
.quote figcaption { margin-top: 1.75rem; }

/* ---------- speaking ---------- */
.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: clamp(2rem, 4vw, 3.5rem);
}
.deflist > div {
  border-top: 1px solid var(--rule);
  padding-block: 1.15rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: baseline;
}
.deflist > div:last-child { border-bottom: 1px solid var(--rule); }
.deflist dt { font-size: 0.9375rem; }
.deflist dd { margin: 0; font-family: var(--brandsans); font-weight: 500; font-size: 0.6875rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--gold); }

/* ---------- contact ---------- */
.contact { padding-block: clamp(4.5rem, 9vw, 8rem); border-top: 1px solid var(--rule); }
.contact__mail {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.35rem, 4.2vw, 2.85rem);
  letter-spacing: -0.02em;
  display: inline-block;
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 0.1em;
  margin-top: 1.5rem;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
  word-break: break-word;
}
.contact__mail { border-bottom-color: var(--gold); }
.contact__mail:hover { color: var(--gold); }

/* newsletter */
.subscribe {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  border-top: 1px solid var(--rule);
  padding-top: clamp(2rem, 4vw, 2.75rem);
  max-width: 34rem;
}
.field { display: flex; gap: 0.5rem; margin-top: 1.1rem; flex-wrap: wrap; }
.field input {
  flex: 1 1 14rem;
  min-width: 0;
  font: inherit;
  font-size: 0.9375rem;
  padding: 0.8rem 1rem;
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  color: var(--ink);
  transition: border-color 0.3s var(--ease);
}
.field input::placeholder { color: var(--ink-3); }
.field input:focus { outline: none; border-color: var(--gold); }
.form-note { margin-top: 0.85rem; font-size: 0.75rem; color: var(--ink-3); }

/* ---------- footer ---------- */
.site-foot { border-top: 1px solid var(--rule); background: var(--paper-2); }
.site-foot__inner {
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 2rem clamp(2rem, 5vw, 4rem);
}
.site-foot h4 {
  font-family: var(--brandsans); font-weight: 500;
  font-size: 0.6875rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 1rem;
}
.site-foot__brand img { height: 2.4rem; width: auto; margin-bottom: 1.1rem; }
.site-foot li + li { margin-top: 0.5rem; }
.site-foot a { font-size: 0.875rem; color: var(--ink-2); transition: color 0.25s var(--ease); }
.site-foot a:hover { color: var(--accent); }
.site-foot__base {
  border-top: 1px solid var(--rule);
  padding-block: 1.35rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--ink-3);
}

/* ---------- page header (insights index) ---------- */
.page-head { padding-top: clamp(3.5rem, 8vw, 6.5rem); padding-bottom: clamp(2.5rem, 5vw, 4rem); }
.page-head h1 { max-width: 22ch; margin-top: 1.35rem; }
.page-head .lede { margin-top: 1.75rem; }

/* ---------- article ---------- */
.article-head { padding-top: clamp(3rem, 7vw, 5.5rem); padding-bottom: clamp(2rem, 4vw, 3rem); }
.article-head h1 { max-width: 26ch; margin-top: 1.5rem; font-size: clamp(2.1rem, 4.6vw, 3.5rem); }
.article-meta {
  margin-top: clamp(2rem, 4vw, 2.75rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  display: flex; flex-wrap: wrap; gap: 0.5rem 2.5rem;
  font-family: var(--brandsans);
  font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3);
}
.prose {
  max-width: 40rem;
  padding-bottom: clamp(3rem, 7vw, 6rem);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--ink-2);
}
.prose > * + * { margin-top: 1.35em; }
.prose h2 {
  font-family: var(--serif); font-weight: 400; color: var(--ink);
  font-size: clamp(1.35rem, 2.4vw, 1.75rem); line-height: 1.25;
  letter-spacing: -0.014em; margin-top: 2.6em;
}
.prose h3 { font-family: var(--serif); font-weight: 400; color: var(--ink); font-size: 1.2rem; margin-top: 2em; }
.prose strong { color: var(--ink); font-weight: 500; }
.prose ul { display: grid; gap: 0.6rem; }
.prose ul li { padding-left: 1.35rem; position: relative; }
.prose ul li::before {
  content: ""; position: absolute; left: 0; top: 0.8em;
  width: 0.6rem; height: 1px; background: var(--gold);
}
.prose blockquote {
  margin: 2.4em 0;
  padding-left: 1.5rem;
  border-left: 2px solid var(--gold);
  font-family: var(--serif);
  font-size: 1.3rem;
  line-height: 1.4;
  color: var(--ink);
}
.prose a { color: var(--accent); border-bottom: 1px solid var(--gold); }
.prose a:hover { color: var(--gold); }
.prose hr { border: 0; height: 1px; background: var(--rule); margin-block: 2.75em; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(14px); }
.is-in { opacity: 1; transform: none; transition: opacity 0.75s var(--ease), transform 0.75s var(--ease); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .sect__grid { grid-template-columns: 1fr; }
  .sect__label { position: static; }
  .entry { grid-template-columns: minmax(0, 1fr); }
  .entry__meta { padding-top: 0; margin-bottom: 0.65rem; line-height: 1.6; display: flex; gap: 1rem; }
  .entry__meta b { display: inline; }
  .entry__arrow { display: none; }

  .nav {
    position: fixed;
    inset: var(--headh) 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    padding: 0.5rem var(--gut) 1.75rem;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  body.nav-open .nav { opacity: 1; transform: none; pointer-events: auto; }
  .nav a { font-size: 1.0625rem; padding-block: 0.85rem; width: 100%; border-bottom: 1px solid var(--rule); }
  .nav a::after { display: none; }
  .nav__cta { border: 0 !important; padding: 0.85rem 0 !important; border-radius: 0; }
  .nav__cta:hover { background: none; color: var(--accent) !important; }
  .burger { display: block; }
}

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