/* ============================================
   DeLeeno.com — Phase 1 Base Styles
   Basic/functional theme for prototyping
   ============================================ */

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

:root {
  --color-bg: #f5f5f5;
  --color-surface: #ffffff;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-accent: #e8913a;
  --color-accent-hover: #d07a2a;
  --color-border: #e0e0e0;
  --color-nav-bg: #2c2c2c;
  --color-nav-text: #ffffff;
  --color-breadcrumb: #999999;
  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --max-width: 1200px;
  --nav-height: 56px;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
  --transition: 200ms ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
}

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

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

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

/* --- Header & Navigation --- */
.site-header {
  background: var(--color-nav-bg);
  color: var(--color-nav-text);
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: 100%;
  gap: 32px;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-nav-text);
  letter-spacing: 0.5px;
}

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

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--color-nav-text);
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  transition: background var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-accent);
}

/* --- Breadcrumbs --- */
.breadcrumbs {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 20px;
  font-size: 0.8125rem;
  color: var(--color-breadcrumb);
}

.breadcrumbs a {
  color: var(--color-breadcrumb);
}

.breadcrumbs a:hover {
  color: var(--color-accent);
}

.breadcrumbs .separator {
  margin: 0 6px;
  color: var(--color-border);
}

/* --- Main Content --- */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 20px 60px;
}

/* --- Page Header --- */
.page-hero {
  text-align: center;
  padding: 48px 20px;
}

.page-hero h1 {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 300;
  margin-bottom: 8px;
}

.page-hero .subtitle {
  color: var(--color-text-light);
  font-size: 1.125rem;
  font-style: italic;
}

/* --- Cards --- */
.card-grid {
  display: grid;
  gap: 20px;
}

.card-grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text);
  display: block;
}

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

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--color-border);
}

.card-body {
  padding: 16px;
}

.card-body h3 {
  font-size: 1.125rem;
  margin-bottom: 4px;
}

.card-body .card-desc {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 8px;
  display: block;
}

/* --- Tab Navigation --- */
.tab-nav {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-nav a {
  padding: 10px 16px;
  font-size: 0.875rem;
  color: var(--color-text-light);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  transition: color var(--transition), border-color var(--transition);
}

.tab-nav a:hover {
  color: var(--color-text);
}

.tab-nav a.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  font-weight: 600;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* --- Filter Chips --- */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.chip {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8125rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}

.chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.chip.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

.chip-clear {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8125rem;
  border: 1px dashed var(--color-border);
  background: transparent;
  color: var(--color-text-light);
  cursor: pointer;
  display: none;
}

.chip-clear.visible {
  display: inline-block;
}

/* --- Search Bar --- */
.search-bar {
  width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-family: var(--font-main);
  margin-bottom: 16px;
  transition: border-color var(--transition);
}

.search-bar:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* --- Accordion --- */
.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
}

.accordion-header {
  padding: 14px 18px;
  background: var(--color-surface);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 500;
  transition: background var(--transition);
}

.accordion-header:hover {
  background: #fafafa;
}

.accordion-header .arrow {
  transition: transform var(--transition);
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.accordion-item.open .accordion-header .arrow {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 250ms ease;
}

.accordion-item.open .accordion-body {
  max-height: 2000px;
}

.accordion-body-inner {
  padding: 0 18px 18px;
  color: var(--color-text-light);
  font-size: 0.9375rem;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-nav-bg);
  color: var(--color-nav-text);
  text-align: center;
  padding: 24px 20px;
  font-size: 0.8125rem;
  margin-top: auto;
}

.site-footer a {
  color: var(--color-accent);
}

/* --- Utility --- */
.text-center { text-align: center; }
.mt-24 { margin-top: 24px; }
.mt-48 { margin-top: 48px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .site-header {
    position: static;
  }

  .nav-container {
    flex-wrap: wrap;
    padding: 8px 12px;
    gap: 8px;
    height: auto;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    gap: 2px;
    -webkit-overflow-scrolling: touch;
  }

  .nav-links a {
    font-size: 0.75rem;
    padding: 6px 10px;
  }

  .page-hero h1 {
    font-size: 2rem;
  }

  .card-grid--4,
  .card-grid--3 {
    grid-template-columns: 1fr;
  }

  .tab-nav {
    gap: 2px;
  }

  .tab-nav a {
    font-size: 0.75rem;
    padding: 8px 12px;
  }
}

@media (min-width: 769px) and (max-width: 1199px) {
  .card-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}