/* ===========================
   The Duck Pond — Main Stylesheet
   =========================== */

/* --- CSS Custom Properties (Light Theme — Default) --- */
:root {
  /* Brand palette */
  --color-ground: #F7F2E9;
  --color-primary: #3F5D4E;
  --color-primary-light: #5a7d6a;
  --color-secondary: #D9A441;
  --color-secondary-light: #e4ba6a;
  --color-sky: #A9C4C9;
  --color-sky-light: #d4e4e7;
  --color-text: #332B22;
  --color-text-muted: #5c5248;

  /* Surface colours (these flip in dark mode) */
  --surface-page: var(--color-ground);
  --surface-card: #ffffff;
  --surface-card-alt: #f0ebe2;
  --surface-header: rgba(247, 242, 233, 0.95);
  --surface-footer: var(--color-primary);

  /* Text on swappable surfaces */
  --text-on-surface: var(--color-text);
  --text-on-surface-muted: var(--color-text-muted);

  /* Text on brand-coloured backgrounds (stays light in both themes) */
  --text-on-brand: #ffffff;
  --text-on-brand-muted: rgba(255, 255, 255, 0.85);

  /* Borders & shadows */
  --border-color: rgba(51, 43, 34, 0.12);
  --shadow-sm: 0 1px 3px rgba(51, 43, 34, 0.08);
  --shadow-md: 0 4px 12px rgba(51, 43, 34, 0.1);
  --shadow-lg: 0 8px 24px rgba(51, 43, 34, 0.12);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Typography */
  --font-heading: 'Lora', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
  --border-radius: 8px;
  --border-radius-lg: 12px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* --- Dark Theme --- */
[data-theme="dark"] {
  --surface-page: #1a2420;
  --surface-card: #243029;
  --surface-card-alt: #2a3830;
  --surface-header: rgba(26, 36, 32, 0.95);
  --surface-footer: #141c18;

  --text-on-surface: #e8e2d9;
  --text-on-surface-muted: #b8b0a5;

  --border-color: rgba(232, 226, 217, 0.12);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);

  --color-primary-light: #7fa892;
  --color-secondary-light: #e4ba6a;
  --color-sky-light: #7fa8af;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-on-surface);
  background-color: var(--surface-page);
  transition: background-color var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

[data-theme="dark"] a {
  color: var(--color-primary-light);
}

a:hover {
  color: var(--color-secondary);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-on-surface);
  line-height: 1.2;
  font-weight: 600;
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); margin-bottom: var(--space-lg); }
h3 { font-size: var(--font-size-2xl); margin-bottom: var(--space-md); }
h4 { font-size: var(--font-size-xl); margin-bottom: var(--space-sm); }

p {
  margin-bottom: var(--space-md);
}

ul, ol {
  padding-left: var(--space-lg);
}

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section--alt {
  background-color: var(--surface-card-alt);
}

.text-center {
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  line-height: 1.4;
}

.btn--primary {
  background-color: var(--color-secondary);
  color: var(--color-text);
}

.btn--primary:hover {
  background-color: var(--color-secondary-light);
  color: var(--color-text);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: var(--color-primary);
  color: var(--text-on-brand);
}

.btn--secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--text-on-brand);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--text-on-surface);
  border: 2px solid var(--border-color);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

[data-theme="dark"] .btn--outline:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}

.btn--call {
  background-color: var(--color-primary);
  color: var(--text-on-brand);
}

.btn--call:hover {
  background-color: var(--color-primary-light);
  color: var(--text-on-brand);
}

/* --- Header & Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--surface-header);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  transition: background-color var(--transition-base);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.header__logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

[data-theme="dark"] .header__logo {
  color: var(--color-primary-light);
}

.header__logo:hover {
  color: var(--color-secondary);
}

.header__logo-icon {
  font-size: 1.5rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  padding: 0;
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-on-surface);
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

[data-theme="dark"] .nav__link:hover,
[data-theme="dark"] .nav__link--active {
  color: var(--color-primary-light);
  border-bottom-color: var(--color-primary-light);
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-on-surface);
  transition: all var(--transition-fast);
  font-size: 1.2rem;
}

.theme-toggle:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: block; }

[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-on-surface);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-sm);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  margin-top: var(--header-height);
  overflow: hidden;
}

.hero__image {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(26, 36, 32, 0.4) 0%,
    rgba(26, 36, 32, 0.65) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: var(--space-3xl) var(--space-lg);
}

.hero__tagline {
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--text-on-brand-muted);
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero__title {
  font-size: var(--font-size-5xl);
  color: var(--text-on-brand);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-on-brand-muted);
  margin-bottom: var(--space-2xl);
  max-width: 550px;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* --- Cards --- */
.card {
  background-color: var(--surface-card);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--border-color);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card__body {
  padding: var(--space-xl);
}

.card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.card__text {
  color: var(--text-on-surface-muted);
  margin-bottom: var(--space-lg);
}

/* --- Feature Grid --- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

/* --- Trust Signals --- */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2xl);
  padding: var(--space-2xl) 0;
}

.trust-item {
  text-align: center;
}

.trust-item__icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.trust-item__label {
  font-weight: 600;
  font-size: var(--font-size-lg);
  color: var(--text-on-surface);
}

.trust-item__detail {
  font-size: var(--font-size-sm);
  color: var(--text-on-surface-muted);
}

/* --- Page Header (internal pages) --- */
.page-header {
  background-color: var(--color-primary);
  padding: var(--space-4xl) 0 var(--space-2xl);
  margin-top: var(--header-height);
  text-align: center;
}

.page-header__title {
  color: var(--text-on-brand);
  margin-bottom: var(--space-sm);
}

.page-header__subtitle {
  color: var(--text-on-brand-muted);
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Accommodation --- */
.room-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  background-color: var(--surface-card);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.room-card__image {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
}

.room-card__content {
  padding: var(--space-2xl);
}

.room-card__price {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
}

.room-card__details {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-xl);
}

.room-card__details li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.room-card__details li:last-child {
  border-bottom: none;
}

/* --- Info Box --- */
.info-box {
  background-color: var(--surface-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

.info-box__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

/* --- Gallery --- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.gallery__item {
  border-radius: var(--border-radius);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.gallery__item:hover img {
  transform: scale(1.03);
}

/* --- Contact Form --- */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--text-on-surface);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--text-on-surface);
  background-color: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(63, 93, 78, 0.1);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group select:focus,
[data-theme="dark"] .form-group textarea:focus {
  box-shadow: 0 0 0 3px rgba(127, 168, 146, 0.15);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-note {
  font-size: var(--font-size-sm);
  color: var(--text-on-surface-muted);
  margin-top: var(--space-md);
  text-align: center;
}

/* --- Map --- */
.map-container {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.map-container iframe {
  width: 100%;
  height: 400px;
  border: 0;
}

/* --- Footer --- */
.footer {
  background-color: var(--surface-footer);
  color: var(--text-on-brand);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__heading {
  font-size: var(--font-size-lg);
  color: var(--text-on-brand);
  margin-bottom: var(--space-md);
}

.footer p,
.footer li {
  color: var(--text-on-brand-muted);
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

.footer ul {
  list-style: none;
  padding: 0;
}

.footer a {
  color: var(--text-on-brand-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--space-xl);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-on-brand-muted);
}

/* --- Events/Conference Feature List --- */
.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list__icon {
  color: var(--color-secondary);
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Two-column content --- */
.content-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.content-split--reverse {
  direction: rtl;
}

.content-split--reverse > * {
  direction: ltr;
}

.content-split__image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.content-split__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 350px;
}

/* --- Contact Details Block --- */
.contact-details {
  background-color: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
}

.contact-details__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-color);
}

.contact-details__item:last-child {
  border-bottom: none;
}

.contact-details__icon {
  color: var(--color-primary);
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 2px;
}

[data-theme="dark"] .contact-details__icon {
  color: var(--color-primary-light);
}

/* --- CTA Banner --- */
.cta-banner {
  background-color: var(--color-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--space-3xl);
  text-align: center;
}

.cta-banner__title {
  color: var(--text-on-brand);
  margin-bottom: var(--space-md);
}

.cta-banner__text {
  color: var(--text-on-brand-muted);
  margin-bottom: var(--space-xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner .btn--primary {
  background-color: var(--color-secondary);
  color: var(--color-text);
}

/* --- Responsive --- */
@media (max-width: 968px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  .content-split {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .content-split--reverse {
    direction: ltr;
  }

  .room-card {
    grid-template-columns: 1fr;
  }

  .room-card__image {
    min-height: 200px;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --header-height: 64px;
  }

  .nav__list {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--surface-header);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    gap: var(--space-sm);
  }

  .nav__list--open {
    display: flex;
  }

  .nav__toggle {
    display: block;
  }

  .hero {
    min-height: 70vh;
  }

  .hero__content {
    padding: var(--space-2xl) var(--space-lg);
  }

  .trust-bar {
    gap: var(--space-xl);
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .gallery {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero__ctas {
    flex-direction: column;
  }

  .hero__ctas .btn {
    width: 100%;
    justify-content: center;
  }
}