/* ==========================================================================
   Bildung mit Herz Sierra Leone e.V. — Editorial Modern Design System
   Zero external dependencies • WCAG 2.2 AA conform • DSGVO by default
   ========================================================================== */

:root {
  --color-bg: #faf8f5;
  --color-surface: #ffffff;
  --color-surface-muted: #f4efe6;
  --color-border: #e7e0d5;
  --color-border-subtle: #f0eae1;

  --color-text-main: #242220;
  --color-text-muted: #6b645c;
  --color-text-light: #9c9388;

  --color-terracotta: #c2410c;
  --color-terracotta-hover: #9a3412;
  --color-terracotta-light: #fff7ed;
  --color-terracotta-border: #fed7aa;

  --color-forest: #166534;
  --color-forest-light: #f0fdf4;
  --color-forest-border: #bbf7d0;

  --color-slate-dark: #1c1917;
  --color-warm-accent: #d97706;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.07), 0 4px 6px -4px rgba(0,0,0,0.05);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --container-max: 1200px;
  --container-narrow: 840px;
}

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

html {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* Accessible focus styling */
:focus-visible {
  outline: 3px solid var(--color-terracotta);
  outline-offset: 2px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-slate-dark);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.15rem; }

p {
  margin-bottom: 1.25rem;
  color: var(--color-text-main);
}

p.lead {
  font-size: 1.25rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

a {
  color: var(--color-terracotta);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

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

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

/* Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Header & Navigation */
.site-header {
  background-color: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--color-slate-dark);
}

.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-slate-dark);
}

.brand-subtitle {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-desktop {
  display: none;
}

@media (min-width: 980px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.5rem 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-terracotta);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 240px;
  padding: 0.5rem 0;
  display: none;
  z-index: 100;
}

.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
  display: block;
}

.dropdown-link {
  display: block;
  padding: 0.6rem 1.25rem;
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.dropdown-link:hover {
  background-color: var(--color-surface-muted);
  color: var(--color-terracotta);
}

/* Language Switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 2px;
  background-color: var(--color-surface);
}

.lang-btn {
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  transition: all 0.15s ease;
}

.lang-btn.active {
  background-color: var(--color-slate-dark);
  color: #ffffff;
}

/* Mobile Toggle & Menu */
.mobile-toggle {
  display: flex;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-slate-dark);
}

@media (min-width: 980px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-menu {
  display: none;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.5rem 2rem;
}

.mobile-menu.open {
  display: block;
}

.mobile-nav-link {
  display: block;
  padding: 0.75rem 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-slate-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-subtle);
}

.mobile-nav-sublink {
  display: block;
  padding: 0.5rem 0 0.5rem 1.25rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  text-decoration: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--color-terracotta);
  color: #ffffff;
  border-color: var(--color-terracotta);
}

.btn-primary:hover {
  background-color: var(--color-terracotta-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-slate-dark);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-surface-muted);
  border-color: var(--color-text-muted);
  color: var(--color-slate-dark);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-terracotta);
  border-color: var(--color-terracotta);
}

.btn-outline:hover {
  background-color: var(--color-terracotta-light);
  color: var(--color-terracotta-hover);
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
}

/* Hero Section */
.hero {
  padding: 4rem 0 3.5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }
}

.hero-tagline {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-terracotta);
  background-color: var(--color-terracotta-light);
  border: 1px solid var(--color-terracotta-border);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.hero-title {
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-badge {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  background-color: rgba(28, 25, 23, 0.88);
  backdrop-filter: blur(8px);
  color: #ffffff;
  padding: 0.85rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Trust Bar / Metrics */
.trust-bar {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 2.5rem 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-card {
  text-align: center;
  padding: 0.5rem;
}

.metric-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-terracotta);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.metric-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-main);
  line-height: 1.3;
}

.metric-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.2rem;
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-muted {
  background-color: var(--color-surface-muted);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  margin-bottom: 3rem;
  text-align: left;
}

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

.section-header .section-tag {
  color: var(--color-terracotta);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

/* Project Cards Grid */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.project-card-image-wrap {
  aspect-ratio: 16/10;
  position: relative;
  overflow: hidden;
  background-color: var(--color-surface-muted);
}

.project-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.status-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.status-badge.in_construction {
  background-color: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.status-badge.completed {
  background-color: var(--color-forest-light);
  color: var(--color-forest);
  border: 1px solid var(--color-forest-border);
}

.status-badge.planning {
  background-color: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.project-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-card-title {
  margin-bottom: 0.5rem;
  font-size: 1.35rem;
}

.project-card-summary {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  flex: 1;
}

/* Progress bar */
.funding-bar-wrap {
  margin-bottom: 1.25rem;
}

.funding-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.funding-progress {
  height: 8px;
  background-color: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.funding-progress-fill {
  height: 100%;
  background-color: var(--color-terracotta);
  border-radius: var(--radius-full);
}

/* Transparency & Data Tables */
.data-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  margin: 1.5rem 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.data-table th, .data-table td {
  padding: 0.9rem 1.2rem;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background-color: var(--color-surface-muted);
  font-weight: 700;
  color: var(--color-slate-dark);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.badge-verified {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-forest);
  background-color: var(--color-forest-light);
  border: 1px solid var(--color-forest-border);
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.badge-estimated {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #92400e;
  background-color: #fef3c7;
  border: 1px solid #fde68a;
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

/* Milestone Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
  margin: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--color-surface);
  border: 3px solid var(--color-terracotta);
}

.timeline-dot.completed {
  background-color: var(--color-forest);
  border-color: var(--color-forest);
}

.timeline-date {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

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

/* Donation Card & Copy Box */
.donation-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
  margin: 2rem 0;
}

.bank-detail-row {
  display: flex;
  flex-direction: column;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

@media (min-width: 600px) {
  .bank-detail-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.bank-label {
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.bank-val {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-slate-dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-copy {
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-copy:hover {
  background-color: var(--color-border);
}

/* Footer */
.site-footer {
  background-color: var(--color-slate-dark);
  color: #d6d3d1;
  padding: 4.5rem 0 2.5rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 800px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.footer-brand h3 {
  color: #ffffff;
  margin-bottom: 0.75rem;
  font-size: 1.3rem;
}

.footer-brand p {
  color: #a8a29e;
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: #a8a29e;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #292524;
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #78716c;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.social-links-row {
  display: flex;
  gap: 1rem;
}

.social-icon-link {
  color: #a8a29e;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  transition: color 0.15s ease;
}

.social-icon-link:hover {
  color: var(--color-terracotta);
}

/* Callout Box */
.callout {
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
  border-left: 4px solid var(--color-terracotta);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.callout-title {
  font-weight: 700;
  color: var(--color-slate-dark);
  margin-bottom: 0.35rem;
}

.callout p:last-child {
  margin-bottom: 0;
}