/* Design System for BLACK & BROWN CLUB
   Theme: Commercial Real Estate Syndication • Private Capital Architecture
   Unique Fingerprint: blacknbrownclub.shop
*/
:root {
  --forest: #1E293B;
  --forest-dark: #0F172A;
  --terracotta: #D4AF37;
  --cream: #FAF8F5;
  --paper: #F8FAFC;
  --ink: #111827;
  --ink-body: #374151;
  --ink-muted: #6B7280;
  --border: #E5E7EB;
  --font-serif: 'Cinzel', 'Playfair Display', 'Georgia', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

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

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--cream);
  color: var(--ink-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.header-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-press {
  text-decoration: none;
  display: flex;
  flex-direction: column;
}

.brand-press .title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.brand-press .tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--forest);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.header-nav a {
  color: var(--ink-body);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.header-nav a:hover {
  color: var(--forest);
}

/* Hero Section */
.hero-book {
  padding: 72px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}

.edition-label {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--forest);
  margin-bottom: 18px;
}

.hero-grid h1 {
  font-family: var(--font-serif);
  font-size: 2.7rem;
  font-weight: 700;
  line-height: 1.18;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.hero-subhead {
  font-size: 1.12rem;
  line-height: 1.68;
  color: var(--ink-muted);
  margin-bottom: 32px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.btn-buy {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--forest);
  color: #FFFFFF !important;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 26px;
  border-radius: 6px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.12);
  transition: all 0.2s ease;
}

.btn-buy:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 22px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: background 0.15s ease;
}

.btn-outline:hover {
  background: rgba(0,0,0,0.03);
}

.book-specs-strip {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--ink-muted);
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

/* 3D Realistic Book Mockup */
.book-stage {
  display: flex;
  justify-content: center;
  perspective: 1200px;
}

.book-object {
  position: relative;
  width: 280px;
  height: 380px;
  border-radius: 4px 12px 12px 4px;
  transform: rotateY(-18deg) rotateX(8deg);
  transform-style: preserve-3d;
  box-shadow: 20px 25px 40px rgba(0,0,0,0.18), 5px 8px 15px rgba(0,0,0,0.1);
  transition: transform 0.4s ease;
}

.book-object:hover {
  transform: rotateY(-10deg) rotateX(4deg);
}

.book-cover {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--forest-dark) 0%, var(--forest) 100%);
  color: #FFFFFF;
  border-radius: 4px 12px 12px 4px;
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-left: 6px solid rgba(0,0,0,0.3);
}

.book-ribbon {
  position: absolute;
  top: -12px;
  left: 45px;
  width: 14px;
  height: 50px;
  background: #D4AF37;
  box-shadow: 0 4px 8px rgba(0,0,0,0.25);
  border-radius: 0 0 2px 2px;
  z-index: 10;
}

.book-pages-side {
  position: absolute;
  top: 6px;
  right: -16px;
  width: 16px;
  height: 368px;
  background: repeating-linear-gradient(to right, #FFF 0, #E5E7EB 2px);
  transform: rotateY(90deg);
  transform-origin: left;
}

.cover-publisher {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  font-weight: 700;
}

.cover-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 8px;
}

.cover-sub {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.4;
}

.cover-author {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.cover-location {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.65);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Editorial Sections */
.editorial-section {
  padding: 80px 0;
}

.editorial-section.alt {
  background: var(--paper);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.kicker-editorial {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--forest);
  margin-bottom: 12px;
}

.section-headline {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  color: var(--ink);
  margin-bottom: 16px;
}

.section-intro {
  font-size: 1.08rem;
  color: var(--ink-muted);
  max-width: 65ch;
  margin-bottom: 48px;
}

/* Package Cards Grid */
.package-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
}

.package-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.package-icon {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  background: var(--paper);
  color: var(--forest);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.package-card h3 {
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 8px;
}

.package-card p {
  font-size: 0.9rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

/* Chapters Accordion / List */
.modules-accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.module-strip {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 20px;
  align-items: start;
}

.module-num {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--forest);
  line-height: 1;
}

.module-details h3 {
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 6px;
}

.module-details p {
  font-size: 0.92rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

/* Fit Boxes */
.fit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.fit-box {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 36px;
}

.fit-box h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  margin-bottom: 24px;
}

.fit-good h3 {
  color: var(--forest);
}

.fit-bad h3 {
  color: #DC2626;
}

.fit-box ul {
  list-style: none;
}

.fit-box li {
  padding-left: 24px;
  position: relative;
  font-size: 0.94rem;
  color: var(--ink-body);
  margin-bottom: 14px;
}

.fit-good li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--forest);
  font-weight: 700;
}

.fit-bad li::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: #DC2626;
  font-weight: 700;
}

/* Order Slip CTA Card */
.order-slip-card {
  background: linear-gradient(135deg, var(--forest-dark) 0%, var(--forest) 100%);
  color: #FFFFFF;
  border-radius: 12px;
  padding: 48px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.15);
}

.order-slip-flex {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 40px;
  align-items: center;
}

.order-slip-left h2 {
  color: #FFFFFF;
  font-family: var(--font-serif);
  font-size: 1.95rem;
  margin-bottom: 14px;
}

.order-slip-left p {
  color: rgba(255,255,255,0.85);
  font-size: 1.05rem;
}

.order-slip-right {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
}

.slip-price {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: #FFFFFF;
}

.slip-note {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.7);
  margin-top: 14px;
}

/* Policies Grid */
.policy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.policy-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 30px;
}

.policy-card h4 {
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 12px;
}

.policy-card p {
  font-size: 0.9rem;
  color: var(--ink-muted);
  line-height: 1.6;
}

/* Author Letter */
.author-letter-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 48px;
  max-width: 820px;
  margin: 0 auto;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.letter-greeting {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--ink);
  margin-bottom: 24px;
}

.letter-body p {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--ink-body);
  margin-bottom: 18px;
}

.letter-signoff {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 20px;
}

.author-signature-block .name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
}

.author-signature-block .role {
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.author-address-stamp {
  font-size: 0.85rem;
  color: var(--ink-muted);
  text-align: right;
  line-height: 1.5;
}

/* Contact Office & Form */
.contact-section-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
}

.office-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 36px;
}

.office-card h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--ink);
  margin-bottom: 8px;
}

.office-table {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.office-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  font-size: 0.9rem;
}

.office-row span:first-child {
  color: var(--ink-muted);
}

.office-row span:last-child {
  font-weight: 600;
  color: var(--ink);
  text-align: right;
}

.contact-form-box {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 36px;
}

.contact-form-box h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--ink);
  margin-bottom: 20px;
}

.form-row {
  margin-bottom: 18px;
}

.form-row label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-row input, .form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.95rem;
  background: #FFFFFF;
  color: var(--ink);
}

.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--forest);
}

.form-alert {
  padding: 14px;
  border-radius: 6px;
  font-size: 0.9rem;
  margin-bottom: 18px;
}

.form-success {
  background: #ECFDF5;
  color: #065F46;
  border: 1px solid #A7F3D0;
}

.form-error {
  background: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FECACA;
}

/* Footer */
.site-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
  font-size: 0.92rem;
}

.footer-columns {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  color: var(--ink-body);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--forest);
}

.footer-legal-bar {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--ink-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* Responsive */
@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .fit-grid {
    grid-template-columns: 1fr;
  }
  .order-slip-flex {
    grid-template-columns: 1fr;
  }
  .contact-section-grid {
    grid-template-columns: 1fr;
  }
  .footer-columns {
    grid-template-columns: 1fr;
  }
  .letter-signoff {
    flex-direction: column;
    align-items: flex-start;
  }
  .author-address-stamp {
    text-align: left;
  }
}