/* ============================================================
   Bund & Co. Advisory — site styles
   Palette: deep navy + brass gold + warm off-white
   No external dependencies; pure CSS, system fonts.
   ============================================================ */

:root {
  --navy:        #0e2748;
  --navy-deep:   #081a33;
  --navy-soft:   #15355f;
  --gold:        #b8945a;
  --gold-bright: #d4af6d;
  --cream:       #faf7f1;
  --paper:       #ffffff;
  --ink:         #1a1f2c;
  --ink-soft:    #4a5468;
  --line:        #e6e1d6;
  --line-dark:   rgba(255,255,255,0.14);

  --serif:  Georgia, "Times New Roman", "Source Han Serif SC", serif;
  --sans:   -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
            "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;

  --maxw: 1120px;
  --pad:  clamp(20px, 4vw, 40px);
  --radius: 4px;
}

/* --- reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--gold); }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* --- header / nav --- */
.site-header {
  background: var(--navy);
  border-bottom: 1px solid var(--line-dark);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: var(--cream);
}
.brand-mark {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 700;
  font-size: 22px;
  color: var(--gold-bright);
  letter-spacing: 0.5px;
}
.brand-name {
  font-family: var(--serif);
  font-size: 17px;
  letter-spacing: 0.5px;
}
.site-nav {
  display: flex;
  gap: 28px;
  align-items: center;
}
.site-nav a {
  color: var(--cream);
  font-size: 14px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}
.site-nav a:hover { color: var(--gold-bright); }
.site-nav .nav-cta {
  border: 1px solid var(--gold);
  padding: 8px 16px;
  border-radius: var(--radius);
  color: var(--gold-bright);
}
.site-nav .nav-cta:hover {
  background: var(--gold);
  color: var(--navy-deep);
}

/* --- typography helpers --- */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  color: var(--gold);
  margin: 0 0 18px;
  font-weight: 600;
}
.eyebrow-light { color: var(--gold-bright); }

h1, h2, h3 { font-family: var(--serif); font-weight: 400; color: var(--navy-deep); }
h1 {
  font-size: clamp(38px, 5.5vw, 60px);
  line-height: 1.1;
  margin: 0 0 24px;
  letter-spacing: -0.5px;
}
h1 .accent { color: var(--gold); font-style: italic; }
h2 {
  font-size: clamp(28px, 3.8vw, 40px);
  line-height: 1.2;
  margin: 0 0 20px;
  letter-spacing: -0.3px;
}
.h2-light { color: var(--cream); }
h3 {
  font-size: 22px;
  margin: 0 0 8px;
  color: var(--navy-deep);
}

.lede {
  font-size: 19px;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 0 32px;
}
.lede-light { color: rgba(250, 247, 241, 0.85); }
.section-lede {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 720px;
  margin: 0 0 48px;
}

/* --- buttons --- */
.btn {
  display: inline-block;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: var(--sans);
}
.btn-primary {
  background: var(--gold);
  color: var(--navy-deep);
  border-color: var(--gold);
}
.btn-primary:hover {
  background: var(--gold-bright);
  border-color: var(--gold-bright);
  color: var(--navy-deep);
}
.btn-ghost {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-ghost:hover {
  background: var(--navy);
  color: var(--cream);
}

/* --- hero --- */
.hero {
  background: var(--cream);
  padding: clamp(60px, 9vw, 110px) 0 clamp(60px, 8vw, 100px);
  border-bottom: 1px solid var(--line);
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}
.hero-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  font-size: 15px;
  color: var(--ink-soft);
}
.hero-bullets li::before {
  content: "✓ ";
  color: var(--gold);
  font-weight: 700;
  margin-right: 4px;
}

/* --- generic section --- */
.section {
  padding: clamp(70px, 9vw, 110px) 0;
}
.section-light { background: var(--paper); }
.section-dark {
  background: var(--navy);
  color: var(--cream);
}
.section-dark .eyebrow { color: var(--gold-bright); }
.section-contact {
  background: var(--cream);
  border-top: 1px solid var(--line);
}

/* --- services grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 16px;
}
.service-card {
  background: var(--cream);
  border: 1px solid var(--line);
  padding: 36px 30px 30px;
  border-radius: var(--radius);
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.service-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(14, 39, 72, 0.10);
  border-color: var(--gold);
}
.service-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 28px;
  color: var(--gold);
  margin-bottom: 14px;
}
.service-card h3 { margin-bottom: 6px; }
.service-sub {
  font-style: italic;
  color: var(--ink-soft);
  margin: 0 0 18px;
  font-size: 15px;
}
.service-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
}
.service-card li {
  padding: 6px 0 6px 18px;
  position: relative;
  font-size: 15px;
  border-bottom: 1px dotted var(--line);
}
.service-card li:last-child { border-bottom: none; }
.service-card li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}
.service-time {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.service-time strong { color: var(--navy); }

.services-footer {
  margin-top: 56px;
  text-align: center;
  font-size: 17px;
  color: var(--ink-soft);
}
.services-footer a {
  color: var(--navy);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
}

/* --- about / two-col --- */
.two-col {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: start;
}
.why-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.why-list li {
  padding: 22px 0;
  border-bottom: 1px solid var(--line-dark);
  color: rgba(250, 247, 241, 0.85);
  font-size: 16px;
  line-height: 1.6;
}
.why-list li:last-child { border-bottom: none; }
.why-list strong {
  display: block;
  font-family: var(--serif);
  font-size: 19px;
  color: var(--gold-bright);
  font-weight: 400;
  margin-bottom: 6px;
}

/* --- FAQ --- */
.faq-container { max-width: 820px; }
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 36px 22px 0;
  font-family: var(--serif);
  font-size: 19px;
  color: var(--navy-deep);
  position: relative;
  transition: color 0.15s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 26px;
  color: var(--gold);
  font-weight: 300;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after {
  content: "−";
  color: var(--navy);
}
.faq-item summary:hover { color: var(--gold); }
.faq-body {
  padding: 0 36px 22px 0;
  color: var(--ink-soft);
  font-size: 16px;
}
.faq-body p { margin: 0 0 12px; }
.faq-body p:last-child { margin-bottom: 0; }
.faq-body strong { color: var(--navy-deep); }

/* --- contact --- */
.contact-container {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-container .eyebrow,
.contact-container h2,
.contact-container .section-lede {
  grid-column: 1 / -1;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ink-soft);
}
.contact-form input,
.contact-form textarea {
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  text-transform: none;
  letter-spacing: normal;
  transition: border-color 0.15s ease;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--gold);
}
.contact-form button {
  align-self: flex-start;
  margin-top: 4px;
}
.form-note {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 4px 0 0;
}

.contact-direct {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 30px;
}
.contact-direct h3 {
  font-size: 18px;
  margin: 0 0 18px;
  color: var(--navy);
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
}
.contact-list li {
  padding: 12px 0;
  border-bottom: 1px dotted var(--line);
}
.contact-list li:last-child { border-bottom: none; }
.contact-label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--gold);
  margin-bottom: 4px;
}
.contact-value {
  font-size: 15px;
  color: var(--navy-deep);
  word-break: break-all;
}
.wechat-qr { text-align: center; }
.wechat-qr-placeholder {
  width: 160px;
  height: 160px;
  margin: 0 auto 10px;
  border: 2px dashed var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 12px;
  color: var(--ink-soft);
  background: var(--cream);
}
.wechat-qr-caption {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0;
}

/* --- footer --- */
.site-footer {
  background: var(--navy-deep);
  color: rgba(250, 247, 241, 0.65);
  padding: 32px 0;
  font-size: 14px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-inner .brand-mark {
  margin-right: 10px;
}
.footer-legal { font-size: 13px; }

/* --- responsive --- */
@media (max-width: 880px) {
  .services-grid { grid-template-columns: 1fr; }
  .two-col,
  .contact-container { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .site-nav { gap: 16px; }
  .site-nav a { font-size: 13px; }
}
@media (max-width: 560px) {
  .brand-name { display: none; }
  .hero-ctas .btn { width: 100%; text-align: center; }
  .footer-inner { flex-direction: column; align-items: flex-start; text-align: left; }
}