/* ========================================
   Global Styles & Theme
   Educational and Fun Theme for Coloring Book Website
   ======================================== */

@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Serif:wght@400;500;700&family=Work+Sans:wght@400;500;700&display=swap");

/* Base body styles */
body {
    font-family: 'Comic Sans MS', 'Arial Rounded MT Bold', Arial, sans-serif;
    background: linear-gradient(135deg, #b7eaff 0%, #ffe29a 100%);
    margin: 0;
    padding: 0;
    color: #364958;
    -webkit-font-smoothing: antialiased;
}

/* ========================================
   Header & Navigation
   ======================================== */

header {
    background: linear-gradient(90deg, #54d2d2 0%, #ffb347 100%);
    color: #fff;
    text-align: center;
    padding: 2rem 1rem 1rem;
    border-bottom: 6px solid #ff6f61;
    box-shadow: 0 4px 16px rgba(84,210,210,0.10);
}

h1 {
    font-size: 2.8rem;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
    text-shadow: 1px 1px 4px #ffb34780;
}

.subtitle {
    font-size: 1.3rem;
    margin-top: 0;
    font-weight: 500;
    color: #364958;
    text-shadow: 1px 1px 4px #b7eaff90;
}

.page-nav {
    display: flex;
    justify-content: center;
    gap: 3.1rem;
    margin: 1.2rem 0;
}

.nav-button {
    display: inline-block;
    padding: 0.85rem 2.2rem;
    background: linear-gradient(90deg, #54d2d2 0%, #ffe29a 100%);
    color: #364958;
    font-size: 1.2rem;
    font-weight: bold;
    border: 2px solid #ffb347;
    border-radius: 30px;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(255,182,71,0.12), 0 0 0 4px #fffbe6;
    transition: background 0.3s, transform 0.2s, color 0.3s;
    outline: none;
    position: relative;
}

.nav-button:hover,
.nav-button.active {
    background: linear-gradient(90deg, #ffb347 0%, #54d2d2 100%);
    color: #fff;
    transform: scale(1.09);
    box-shadow: 0 4px 12px rgba(84,210,210,0.18), 0 0 0 6px #ffe29a;
}

/* ========================================
   Book Section
   ======================================== */

.book-section {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
    gap: 2.2rem;
    margin: 2.5rem auto 2rem;
    max-width: 950px;
}

.book-cover {
    width: 310px;
    height: 420px;
    object-fit: cover;
    border: 6px dashed #54d2d2;
    box-shadow: 0 6px 18px rgba(84,210,210,0.18);
    border-radius: 18px;
    background: #fff;
}

.book-details {
    flex: 1;
    min-width: 260px;
    background: #fffbe6;
    border-radius: 20px;
    box-shadow: 0 2px 10px rgba(54,73,88,0.09);
    padding: 2rem 2rem 1.2rem;
}

.book-details h2 {
    color: #54d2d2;
    margin-top: 0;
    text-shadow: 1px 1px 2px #b7eaff80;
}

.book-details ul {
    list-style: disc inside;
    margin: 1rem 0;
    font-size: 1.1rem;
    color: #364958;
}

.buy-button {
    display: inline-block;
    padding: 0.8rem 2.2rem;
    background: linear-gradient(90deg, #ffb347 0%, #54d2d2 100%);
    color: #364958;
    font-size: 1.25rem;
    font-weight: bold;
    border: 2px solid #54d2d2;
    border-radius: 32px;
    text-decoration: none;
    margin-top: 1.2rem;
    margin-bottom: 0.5rem;
    box-shadow: 0 2px 8px rgba(84,210,210,0.12);
    transition: background 0.3s, color 0.3s, transform 0.2s;
}

.buy-button:hover {
    background: linear-gradient(90deg, #54d2d2 0%, #ffb347 100%);
    color: #fff;
    transform: scale(1.07);
}

/* ========================================
   Authors Section
   ======================================== */

.authors-section {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2.2rem;
    margin: 3rem auto;
    max-width: 950px;
}

.author-card {
    background: #e9faff;
    border-radius: 22px;
    box-shadow: 0 2px 12px rgba(54,73,88,0.07);
    padding: 2rem 1.5rem 1.2rem;
    text-align: center;
    width: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 2px dashed #ffb347;
}

.author-photo {
    width: 160px;
    height: 160px;
    object-fit: cover;
    border-radius: 50%;
    border: 5px solid #54d2d2;
    box-shadow: 0 2px 8px rgba(84,210,210,0.12);
    background: #fff;
    margin-bottom: 1.2rem;
}

.author-name {
    font-size: 1.35rem;
    color: #ff6f61;
    margin: 0.5rem 0 0.8rem;
    letter-spacing: 1px;
    font-weight: bold;
}

.author-bio {
    font-size: 1.05rem;
    color: #364958;
    margin: 0;
}

/* ========================================
   Shared Info Sections
   ======================================== */

.why-section, .contact-section {
    text-align: center;
    margin: 2rem auto;
    max-width: 700px;
    background: #ffe29a;
    padding: 1.6rem 1rem;
    border-radius: 16px;
    box-shadow: 0 2px 10px rgba(255,182,71,0.09);
    border: 2px solid #54d2d2;
}

.why-section h2, .contact-section h2 {
    color: #54d2d2;
    margin-bottom: 0.5rem;
}

/* ========================================
   Footer
   ======================================== */

footer {
    text-align: center;
    padding: 1rem;
    background: linear-gradient(90deg, #54d2d2 0%, #ffe29a 100%);
    color: #364958;
    font-size: 1.1rem;
    margin-top: 2rem;
    border-top: 4px solid #ff6f61;
    box-shadow: 0 -2px 10px rgba(255,182,71,0.09);
}

/* ========================================
   Form Styles (Re-themed)
   ======================================== */

:root {
  --color-background: #ffe29a;
  --color-background-alt: #e9faff;
  --color-border-active: #54d2d2;
  --color-border-default: #ffb347;
  --color-highlight: #ff6f61;
  --color-primary: #54d2d2;
  --color-primary-active: #ffb347;
  --color-text-default: #364958;
  --color-text-muted: #6b7280;

  --font-family-body: "Work Sans", system-ui, sans-serif;
  --font-family-display: "IBM Plex Serif", system-ui, sans-serif;
}

.fs-form {
  display: grid;
  row-gap: 1.5rem;
}

.fs-field {
  display: flex;
  flex-direction: column;
  row-gap: 0.375rem;
}

.fs-label {
  color: var(--color-text-default);
  font-family: var(--font-family-display);
  font-size: 0.95rem;
  font-weight: 600;
}

.fs-input,
.fs-select,
.fs-textarea {
  border-radius: 0.5rem;
  border: 2px solid var(--color-border-default);
  padding: 0.75rem;
  font-size: 1rem;
  font-family: var(--font-family-body);
  background: #fff;
  color: var(--color-text-default);
  box-shadow: 0 2px 6px rgba(84,210,210,0.12);
  transition: all 0.2s;
}

.fs-input:focus,
.fs-select:focus,
.fs-textarea:focus {
  border-color: var(--color-border-active);
  box-shadow: 0 0 0 4px #ffe29a;
  outline: none;
}

.fs-button {
  background: linear-gradient(90deg, #ffb347 0%, #54d2d2 100%);
  border-radius: 32px;
  color: #fff;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
  padding: 0.9rem 2rem;
  border: none;
  box-shadow: 0 2px 6px rgba(84,210,210,0.18);
  transition: transform 0.2s, background 0.3s;
}

.fs-button:hover {
  background: linear-gradient(90deg, #54d2d2 0%, #ffb347 100%);
  transform: scale(1.05);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 900px) {
    .book-section,
    .authors-section {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    .book-cover,
    .author-card {
        margin-bottom: 1rem;
    }
    .book-details {
        padding: 1rem 1rem 1rem;
    }
}
/* Fun Contact Icon */
.contact-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 1rem;
  transition: transform 0.2s ease-in-out;
}

.contact-icon:hover {
  animation: wiggle 0.5s ease-in-out infinite;
}

@keyframes wiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-10deg); }
  75% { transform: rotate(10deg); }
}
.success-message {
  display: none;
}

/* ========================================
   Dark Mode Overrides (applied to body.dark-mode)
   ======================================== */

body.dark-mode {
  background: linear-gradient(135deg, #1e1e1e 0%, #2a2a2a 100%);
  color: #ffffff;
}

body.dark-mode header {
  background: linear-gradient(90deg, #2a2a2a 0%, #3a3a3a 100%);
  border-bottom: 6px solid #ff6f61;
  color: #fff;
}

body.dark-mode .subtitle {
  color: #ffffff;
  text-shadow: none;
}

body.dark-mode .nav-button {
  background: linear-gradient(90deg, #3a3a3a 0%, #5a5a5a 100%);
  color: #fff;
  border: 2px solid #777;
  box-shadow: none;
}

body.dark-mode .nav-button:hover,
body.dark-mode .nav-button.active {
  background: linear-gradient(90deg, #5a5a5a 0%, #3a3a3a 100%);
  color: #fff;
}

body.dark-mode .book-details {
  background: #2a2a2a;
  color: #fff;
}

body.dark-mode .book-details h2 {
  color: #ffb347;
}

body.dark-mode .book-details ul {
  color: #ffffff; /* bullet list fix */
}

body.dark-mode .author-card {
  background: #2a2a2a;
  border: 2px dashed #777;
  color: #fff;
}

body.dark-mode .why-section,
body.dark-mode .contact-section {
  background: #3a3a3a;
  border: 2px solid #777;
  color: #fff;
}

body.dark-mode .why-section h2,
body.dark-mode .contact-section h2 {
  color: #ffb347;
}

body.dark-mode footer {
  background: linear-gradient(90deg, #2a2a2a 0%, #3a3a3a 100%);
  color: #fff;
  border-top: 4px solid #ff6f61;
}

/* Contact form fixes */
body.dark-mode .fs-input,
body.dark-mode .fs-select,
body.dark-mode .fs-textarea {
  background: #2a2a2a;
  border: 2px solid #777;
  color: #fff;
}

body.dark-mode .fs-input:focus,
body.dark-mode .fs-select:focus,
body.dark-mode .fs-textarea:focus {
  border-color: #ffb347;
  box-shadow: 0 0 0 4px #444;
}

body.dark-mode .fs-label {
  color: #fff;
}

.fs-description {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

body.dark-mode .fs-description {
  color: #bbb;
}
/* Authors page fixes */
body.dark-mode .author-name {
  color: #ffb347; /* brighter amber, easier to read in dark mode */
}

body.dark-mode .author-bio {
  color: #fff; /* make bios readable on dark background */
}



/* ========================================
   Theme Toggle Switch (Top Right with Labels)
   ======================================== */
.theme-switch {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 100px;
  height: 34px;
  z-index: 1000;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: relative;
  cursor: pointer;
  width: 100%;
  height: 100%;
  border-radius: 34px;
  background: linear-gradient(90deg, #ffb347 0%, #54d2d2 100%);
  transition: 0.4s;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.85rem;
  font-weight: bold;
}

.slider:before {
  position: absolute;
  content: attr(data-light);
  left: 10px;
  transition: 0.4s;
}

input:checked + .slider {
  background: linear-gradient(90deg, #2a2a2a 0%, #3a3a3a 100%);
}

input:checked + .slider:before {
  content: attr(data-dark);
  left: auto;
  right: 10px;
}