/* ==========================================================================
   Dr. Sarah Waheed - Author & Historian Official Website
   Custom Styling & Responsive Design
   ========================================================================== */

:root {
  --color-bg: #faf8f5;
  --color-card-bg: #ffffff;
  --color-primary: #1e293b;
  --color-secondary: #475569;
  --color-accent: #b45309; /* Warm Deccan amber/terracotta */
  --color-accent-hover: #92400e;
  --color-border: #e2e8f0;
  --color-muted: #64748b;
  --font-serif: 'Georgia', 'Cambria', 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1100px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-primary);
  line-height: 1.7;
  font-size: 16px;
}

/* --- Header & Navigation --- */
header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-subtitle {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  font-weight: 600;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.8rem;
  align-items: center;
}

nav a {
  text-decoration: none;
  color: var(--color-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

nav a:hover, nav a.active {
  color: var(--color-accent);
}

.nav-cta {
  background-color: var(--color-accent);
  color: #ffffff !important;
  padding: 0.5rem 1.1rem;
  border-radius: 4px;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

.nav-cta:hover {
  background-color: var(--color-accent-hover);
}

/* --- Hero Sections --- */
.hero {
  padding: 5rem 2rem 4rem;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-book {
  grid-template-columns: 2fr 3fr;
}

.hero-content h1 {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  line-height: 1.2;
  margin-bottom: 1.2rem;
  color: var(--color-primary);
}

.hero-content .subtitle {
  font-size: 1.25rem;
  color: var(--color-secondary);
  margin-bottom: 1.8rem;
  font-weight: 400;
}

.hero-content p {
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.hero-image-box {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.book-cover-placeholder {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  color: #f8fafc;
  aspect-ratio: 2 / 3;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  border-radius: 4px;
  border: 2px solid #cbd5e1;
  margin-bottom: 1rem;
  position: relative;
  overflow: hidden;
}

.book-cover-placeholder::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(180,83,9,0.15) 0%, rgba(0,0,0,0) 70%);
  pointer-events: none;
}

.book-cover-placeholder .author-name {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #94a3b8;
  margin-bottom: 1rem;
}

.book-cover-placeholder .title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.book-cover-placeholder .tagline {
  font-size: 0.9rem;
  font-style: italic;
  color: #cbd5e1;
  margin-top: 1rem;
}

/* --- Buttons --- */
.btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
  border: 1px solid var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background-color: #f8fafc;
}

/* --- Layout Sections --- */
.section {
  padding: 4rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-alt {
  background-color: #ffffff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  width: 100%;
}

.section-alt .inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 2rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.section-subtitle {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
}

/* --- Grids & Cards --- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.card h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.card p {
  color: var(--color-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.tag {
  display: inline-block;
  background-color: #f1f5f9;
  color: #475569;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.tag-accent {
  background-color: #fef3c7;
  color: #92400e;
}

/* --- Blurbs & Praise --- */
.quote-box {
  border-left: 4px solid var(--color-accent);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--color-primary);
}

.quote-author {
  display: block;
  font-style: normal;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: 0.5rem;
}

/* --- Footer --- */
footer {
  background-color: #1e293b;
  color: #cbd5e1;
  padding: 4rem 2rem 2rem;
  margin-top: 4rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: #ffffff;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.footer-col p {
  font-size: 0.9rem;
  color: #94a3b8;
  line-height: 1.6;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid #334155;
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: #64748b;
}

/* --- Responsive Table / Lists --- */
.meta-list {
  list-style: none;
  margin: 1.5rem 0;
}

.meta-list li {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
}

.meta-list li strong {
  width: 140px;
  color: var(--color-primary);
}

.meta-list li span {
  flex: 1;
  color: var(--color-secondary);
}

/* --- Responsive Media Queries --- */
@media (max-width: 850px) {
  .hero, .hero-book {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  nav ul {
    flex-wrap: wrap;
    gap: 1rem;
  }
}