/* /author-website/css/style.css */
/* ==============================
   Global Styles
   ============================== */
:root {
  --color-bg: #f7f7f7;
  --color-primary: #2d2d2d;
  --color-secondary: #4a4a4a;
  --color-accent: #0055a5;
  --color-white: #fff;
  --color-border: #e0e0e0;
  --color-footer: #222;
  --color-link-hover: #0055a5;
  --font-main: "Segoe UI", Arial, sans-serif;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-primary);
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.7;
}

/* ==============================
   Navigation Bar
   ============================== */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 2rem;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 1px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  color: var(--color-secondary);
  text-decoration: none;
  font-size: 1rem;
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  transition: background 0.2s, color 0.2s;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--color-accent);
  background: #eaf4fb;
}

/* ==============================
   Hero Section (Home)
   ============================== */
.hero {
  max-width: 700px;
  margin: 3rem auto 2rem auto;
  text-align: center;
  padding: 2rem 1rem;
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.tagline {
  font-size: 1.2rem;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.book-cover {
  width: 160px;
  height: 240px;
  object-fit: cover;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
  margin-bottom: 1.5rem;
}

.book-desc {
  margin-bottom: 1.5rem;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  margin: 0.5rem 0;
  transition: background 0.2s, color 0.2s;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
}

.btn-primary:hover {
  background: #003e7a;
}

.btn-secondary {
  background: #eaf4fb;
  color: var(--color-accent);
  font-weight: 500;
  border: 1px solid var(--color-accent);
}

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

/* ==============================
   Call-to-Action Section
   ============================== */
.cta {
  max-width: 600px;
  margin: 2rem auto;
  text-align: center;
  background: var(--color-white);
  border-radius: 8px;
  padding: 2rem 1rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

.cta h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

/* ==============================
   About Author Page
   ============================== */
.about-author {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 900px;
  margin: 3rem auto 2rem auto;
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
  padding: 2rem 1rem;
  align-items: flex-start;
}

.author-photo {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
  margin-bottom: 1rem;
  background: #e0e0e0;
}

.bio {
  flex: 1;
}

.bio h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.bio h2 {
  font-size: 1.2rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.bio ul {
  padding-left: 1.2rem;
  margin: 0.5rem 0;
}

.bio ul li {
  margin-bottom: 0.5rem;
}

/* ==============================
   Book Details Page
   ============================== */
.book-details {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 1000px;
  margin: 3rem auto 2rem auto;
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
  padding: 2rem 1rem;
  align-items: flex-start;
}

.book-cover-large img {
  width: 220px;
  height: 330px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
  background: #e0e0e0;
}

.book-info {
  flex: 1;
}

.book-info h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.book-info h2 {
  font-size: 1.2rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.book-info ul {
  padding-left: 1.2rem;
  margin: 0.5rem 0;
}

.book-info ul li {
  margin-bottom: 0.5rem;
}

.book-info blockquote {
  font-style: italic;
  color: var(--color-secondary);
  border-left: 3px solid var(--color-accent);
  margin: 1rem 0;
  padding-left: 1rem;
}

.purchase-buttons {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ==============================
   Contact Page
   ============================== */
.contact-section {
  max-width: 500px;
  margin: 3rem auto 2rem auto;
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
  padding: 2rem 1rem;
}

.contact-section h1 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

label {
  font-weight: 500;
  margin-bottom: 0.3rem;
}

input,
textarea {
  padding: 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 1rem;
  background: #fafafa;
  color: var(--color-primary);
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: #f0f8ff;
}

.form-success {
  color: var(--color-accent);
  font-weight: 600;
  margin-top: 1rem;
  text-align: center;
}

/* ==============================
   Footer
   ============================== */
footer {
  background: var(--color-footer);
  color: var(--color-white);
  padding: 1.5rem 0 1rem 0;
  margin-top: 3rem;
}

.footer-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  font-size: 0.95rem;
}

.footer-content nav a {
  color: var(--color-white);
  text-decoration: none;
  margin: 0 0.5rem;
  transition: color 0.2s;
}

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

/* ==============================
   Responsive Design
   ============================== */
@media (max-width: 900px) {
  .about-author,
  .book-details {
    flex-direction: column;
    align-items: center;
  }
  .book-cover-large img,
  .author-photo {
    margin-bottom: 1rem;
  }
}

@media (max-width: 600px) {
  .navbar {
    flex-direction: column;
    padding: 0.5rem 1rem;
  }
  .nav-links {
    gap: 1rem;
  }
  .hero,
  .cta,
  .about-author,
  .book-details,
  .contact-section {
    padding: 1.2rem 0.5rem;
    margin: 2rem auto 1rem auto;
  }
  .book-cover,
  .book-cover-large img {
    width: 120px;
    height: 180px;
  }
  .author-photo {
    width: 120px;
    height: 120px;
  }
}

/* ==============================
   Utility Classes
   ============================== */
.hidden {
  display: none !important;
}