/* ============================================================
   GSM Advisors — stylesheet.css
   Foundation stylesheet for future site buildout
   Modeled on benchmark.com visual design language

   COLORS
   --bg:        #f4f2ee   warm parchment — Lazard / Rothschild style
   --text:      #1a1a1a   near black — primary text
   --muted:     #888888   secondary labels and copyright
   --mark:      #1a1a1a   dark — wordmark and logo box
   --rule:      rgba(0,0,0,0.12)  divider lines

   FONTS
   Wordmark  : Gill Sans, Trebuchet MS — geometric sans-serif
   Body      : Helvetica Neue, Arial   — clean neutral sans-serif
   ============================================================ */


/* ── CSS Custom Properties ───────────────────────────────── */
:root {
  --bg:        #f4f2ee;
  --text:      #1a1a1a;
  --muted:     #888888;
  --mark:      #1a1a1a;
  --rule:      rgba(0,0,0,0.12);
  --max-width: 800px;
  --font-sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mark: "Gill Sans", "Gill Sans MT", "Trebuchet MS", "Helvetica Neue", Arial, sans-serif;
}


/* ── Reset ───────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}


/* ── Base ────────────────────────────────────────────────── */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 6vw, 6rem) clamp(1.5rem, 5vw, 3rem);
}


/* ── Page Wrapper ────────────────────────────────────────── */
.wrapper {
  width: 100%;
  max-width: var(--max-width);
  text-align: center;
}


/* ── Logo Box ────────────────────────────────────────────── */
.logo-box {
  display: inline-block;
  border: 2px solid var(--mark);
  padding: clamp(0.9rem, 2vw, 1.5rem) clamp(2.5rem, 7vw, 5rem);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.wordmark {
  display: block;
  font-family: var(--font-mark);
  font-size: clamp(1.6rem, 4.5vw, 3rem);
  font-weight: 600;
  font-style: normal;
  letter-spacing: 0.5em;
  padding-right: 0.5em;
  text-transform: uppercase;
  color: var(--mark);
  line-height: 1;
  white-space: nowrap;
}


/* ── Tagline ─────────────────────────────────────────────── */
.tagline {
  font-family: var(--font-sans);
  font-size: clamp(0.875rem, 1.8vw, 1.0625rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text);
  letter-spacing: 0.03em;
  line-height: 1.75;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}


/* ── Body Copy ───────────────────────────────────────────── */
.body-copy {
  font-family: var(--font-sans);
  font-size: clamp(0.8125rem, 1.5vw, 0.9375rem);
  font-weight: 300;
  color: var(--text);
  line-height: 1.9;
  margin-bottom: clamp(0.75rem, 2vw, 1.5rem);
}


/* ── Divider ─────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--rule);
  width: 50%;
  margin: clamp(1.5rem, 3.5vw, 2.5rem) auto;
}


/* ── Info Row ────────────────────────────────────────────── */
.info-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(2rem, 6vw, 5rem);
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
}

.info-col {
  font-family: var(--font-sans);
  font-style: normal;
  font-size: clamp(0.8rem, 1.4vw, 0.9rem);
  font-weight: 300;
  color: var(--text);
  line-height: 1.8;
  text-align: center;
}

.label {
  display: block;
  font-size: clamp(0.625rem, 1vw, 0.75rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.35rem;
}


/* ── Links ───────────────────────────────────────────────── */
a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--text);
  transition: opacity 0.2s ease;
}

a:hover,
a:focus {
  opacity: 0.45;
  outline: none;
}


/* ── More Info ───────────────────────────────────────────── */
.more-info {
  font-family: var(--font-sans);
  font-size: clamp(0.8rem, 1.4vw, 0.9rem);
  font-weight: 300;
  color: var(--text);
  margin-bottom: 1rem;
}


/* ── Copyright ───────────────────────────────────────────── */
.copyright {
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 1.1vw, 0.8125rem);
  font-weight: 300;
  font-style: italic;
  color: var(--muted);
}


/* ── Responsive Breakpoints ──────────────────────────────── */

/* 4K and large displays 27in+ */
@media (min-width: 1920px) {
  html { font-size: 20px; }
  :root { --max-width: 1100px; }
}

/* 1440p / 24in monitors */
@media (min-width: 1440px) and (max-width: 1919px) {
  html { font-size: 18px; }
  :root { --max-width: 920px; }
}

/* Standard laptop and desktop 1024–1439px */
@media (min-width: 1024px) and (max-width: 1439px) {
  html { font-size: 16px; }
  :root { --max-width: 760px; }
}

/* Tablets landscape 768–1023px */
@media (min-width: 768px) and (max-width: 1023px) {
  html { font-size: 15px; }
  :root { --max-width: 680px; }
}

/* Tablets portrait 520–767px */
@media (min-width: 520px) and (max-width: 767px) {
  html { font-size: 14px; }
  .logo-box { padding: 1rem 2.5rem; }
}

/* Smartphones max 519px */
@media (max-width: 519px) {
  html { font-size: 13px; }
  .wordmark { letter-spacing: 0.28em; padding-right: 0.28em; }
  .logo-box { padding: 0.8rem 1.6rem; }
  .info-row { flex-direction: column; gap: 1.25rem; }
  .divider { width: 70%; }
}