/*
 * Peregrine House & Co. — Design System
 * Premium formation-based travel to Poland
 */

/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&display=swap');

/* ===== CSS RESET ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  font-family: 'EB Garamond', serif;
  background-color: var(--color-charcoal);
  color: var(--color-ivory);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ===== DESIGN TOKENS ===== */
:root {
  /* Colors */
  --color-charcoal: #1a1a1a;
  --color-charcoal-light: #2a2a2a;
  --color-ivory: #f5f2eb;
  --color-ivory-muted: rgba(245, 242, 235, 0.7);
  --color-gold: #c9a962;
  --color-gold-muted: rgba(201, 169, 98, 0.6);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  /* Typography */
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.75rem;
  --text-2xl: 2.5rem;
  --text-3xl: 3.5rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
}

/* ===== UTILITIES ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.text-muted {
  color: var(--color-ivory-muted);
}

.text-gold {
  color: var(--color-gold);
}

/* ===== HEADER & NAVIGATION ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: linear-gradient(to bottom, var(--color-charcoal), transparent);
  z-index: 1000;
  transition: background 0.3s ease;
}

.site-header.scrolled {
  background: var(--color-charcoal);
  border-bottom: 1px solid var(--color-charcoal-light);
}

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

.wordmark {
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ivory);
  text-decoration: none;
}

.wordmark:hover {
  color: var(--color-gold);
}

.main-nav {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.main-nav a {
  font-size: var(--text-sm);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-ivory-muted);
  text-decoration: none;
  transition: color 0.3s ease;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width 0.3s ease;
}

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

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

/* ===== PAGE LAYOUT ===== */
.page-content {
  padding-top: calc(var(--header-height) + var(--space-lg));
  padding-bottom: var(--space-xl);
  min-height: 100vh;
}

/* ===== HERO SECTION ===== */
.hero {
  text-align: center;
  padding: var(--space-lg) 0 var(--space-md);
  border-bottom: 1px solid var(--color-charcoal-light);
  margin-bottom: var(--space-md);
}

.hero-title {
  font-size: var(--text-3xl);
  font-weight: 400;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-ivory-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== PLACEHOLDER CONTENT BLOCKS ===== */
.placeholder-block {
  background: var(--color-charcoal-light);
  border: 1px dashed var(--color-gold-muted);
  border-radius: 4px;
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  position: relative;
}

.placeholder-block::before {
  content: attr(data-placeholder);
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  opacity: 0.8;
}

.placeholder-block p {
  color: var(--color-ivory-muted);
  font-style: italic;
}

/* ===== SECTION STYLING ===== */
.section {
  margin-bottom: var(--space-lg);
}

.section-title {
  font-size: var(--text-xl);
  font-weight: 500;
  margin-bottom: var(--space-md);
  color: var(--color-ivory);
}

/* ===== JOURNAL CARDS ===== */
.journal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.journal-card {
  background: var(--color-charcoal-light);
  border: 1px solid var(--color-charcoal-light);
  padding: var(--space-md);
  transition: border-color 0.3s ease;
}

.journal-card:hover {
  border-color: var(--color-gold-muted);
}

.journal-card-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
}

.journal-card-date {
  font-size: var(--text-sm);
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.journal-card-excerpt {
  color: var(--color-ivory-muted);
  font-style: italic;
}

/* ===== FORM STYLING ===== */
.invitation-form {
  max-width: 600px;
  margin: 0 auto;
}

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

.form-label {
  display: block;
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ivory-muted);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-sm);
  background: var(--color-charcoal-light);
  border: 1px solid var(--color-charcoal-light);
  color: var(--color-ivory);
  font-family: 'EB Garamond', serif;
  font-size: var(--text-base);
  transition: border-color 0.3s ease;
}

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

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

.form-button {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  font-family: 'EB Garamond', serif;
  font-size: var(--text-sm);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s ease;
}

.form-button:hover {
  background: var(--color-gold);
  color: var(--color-charcoal);
}

/* ===== FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--color-charcoal-light);
  padding: var(--space-lg) 0;
  text-align: center;
}

.footer-text {
  font-size: var(--text-sm);
  color: var(--color-ivory-muted);
  letter-spacing: 0.1em;
}

/* ===== PHOTOS ===== */
.photo {
  margin: var(--space-md) 0;
}

.photo img {
  width: 100%;
  height: auto;
  display: block;
}

.photo figcaption {
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-ivory-muted);
  text-align: center;
  margin-top: var(--space-xs);
}

/* ===== GALLERY ===== */
.gallery-grid {
  column-count: 3;
  column-gap: var(--space-md);
}

.gallery-item {
  break-inside: avoid;
  margin: 0 0 var(--space-md);
  overflow: hidden;
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}

.gallery-item:hover img {
  transform: scale(1.03);
}

.gallery-item figcaption {
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-ivory-muted);
  margin-top: var(--space-xs);
}

@media (max-width: 900px) {
  .gallery-grid { column-count: 2; }
}

@media (max-width: 560px) {
  .gallery-grid { column-count: 1; }
}

/* ===== MOBILE NAV TOGGLE ===== */
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }

  .site-header {
    height: auto;
  }

  .site-header.nav-open {
    background: var(--color-charcoal);
    border-bottom: 1px solid var(--color-charcoal-light);
  }

  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: var(--space-sm) var(--space-md);
    align-items: center;
  }

  .wordmark {
    margin-bottom: 0;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    margin-left: auto;
  }

  .nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-ivory);
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  nav {
    flex-basis: 100%;
  }

  .main-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .site-header.nav-open .main-nav {
    max-height: 60vh;
    margin-top: var(--space-sm);
  }

  .site-header.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero-title {
    font-size: var(--text-2xl);
  }

  .page-content {
    padding-top: calc(64px + var(--space-md));
  }
}