/* ===== CSS Variables ===== */
:root {
  --primary: #1a5276;
  --primary-light: #2980b9;
  --primary-dark: #0e3650;
  --accent: #27ae60;
  --accent-light: #2ecc71;
  --accent-dark: #1e8449;
  --bg: #f8f9fa;
  --bg-alt: #ffffff;
  --text: #2c3e50;
  --text-light: #5d6d7e;
  --text-muted: #95a5a6;
  --border: #dee2e6;
  --shadow: 0 2px 15px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }

h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
h3 { font-size: 1.3rem; }

p { margin-bottom: 1rem; }

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Skip Link ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  z-index: 10000;
  font-weight: 600;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 10px;
  color: #fff;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 8px 16px;
  color: var(--text);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: rgba(26,82,118,0.08);
}

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--accent-dark) !important;
  transform: translateY(-1px);
}

/* Mobile Nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 3px;
  background: var(--text);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(39,174,96,0.3);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== Sections ===== */
section { padding: 100px 0; }

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  color: var(--primary);
  margin-bottom: 16px;
}

.section-title p {
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.05)" d="M0,96L48,112C96,128,192,160,288,165.3C384,171,480,149,576,128C672,107,768,85,864,90.7C960,96,1056,128,1152,138.7C1248,149,1344,139,1392,133.3L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom center;
  background-size: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  color: #fff;
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero h1 {
  color: #fff;
  margin-bottom: 20px;
  font-size: clamp(2.5rem, 5vw, 3.8rem);
}

.hero h1 span {
  color: var(--accent-light);
}

.hero p {
  color: rgba(255,255,255,0.9);
  font-size: 1.2rem;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.stat h3 {
  color: var(--accent-light);
  font-size: 2.5rem;
  margin-bottom: 4px;
}

.stat p {
  color: rgba(255,255,255,0.8);
  margin: 0;
  font-size: 0.95rem;
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--bg-alt);
  padding: 40px 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: #fff;
}

.feature-card h3 { margin-bottom: 12px; color: var(--primary); }
.feature-card p { color: var(--text-light); margin: 0; }

/* ===== About ===== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image-text {
  color: #fff;
  font-size: 4rem;
  font-weight: 800;
  opacity: 0.3;
}

.about-text h2 {
  color: var(--primary);
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-light);
  font-size: 1.05rem;
}

/* ===== Team ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.team-card {
  background: var(--bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.team-avatar {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 3rem;
  font-weight: 700;
}

.team-info { padding: 24px; text-align: center; }
.team-info h3 { color: var(--primary); margin-bottom: 4px; }
.team-info .role { color: var(--accent); font-weight: 600; font-size: 0.9rem; margin-bottom: 8px; }
.team-info p { color: var(--text-light); font-size: 0.9rem; margin: 0; }

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h3 {
  color: var(--primary);
  margin-bottom: 24px;
  font-size: 1.4rem;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: rgba(26,82,118,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-item h4 { color: var(--primary); margin-bottom: 4px; }
.contact-item p { color: var(--text-light); margin: 0; }

.contact-form {
  background: var(--bg-alt);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 4px rgba(41,128,185,0.1);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* ===== Donate ===== */
.donate-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
}

.donate-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.donate-content h2 {
  color: #fff;
  margin-bottom: 20px;
}

.donate-content p {
  color: rgba(255,255,255,0.9);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.donate-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.donate-method {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.2);
}

.donate-method h3 {
  color: var(--accent-light);
  margin-bottom: 12px;
}

.donate-method p {
  color: rgba(255,255,255,0.8);
  margin: 0;
  font-size: 0.95rem;
}

.iban {
  background: rgba(255,255,255,0.15);
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  color: #fff;
  margin-top: 20px;
  display: inline-block;
  letter-spacing: 1px;
}

/* ===== Legal Pages ===== */
.legal-section {
  padding: 120px 0 80px;
  min-height: 100vh;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h1 {
  color: var(--primary);
  margin-bottom: 30px;
}

.legal-content h2 {
  color: var(--primary);
  margin: 40px 0 16px;
  font-size: 1.4rem;
}

.legal-content p {
  color: var(--text-light);
  line-height: 1.8;
}

.legal-content ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem 0;
}

.legal-content ul li {
  padding: 8px 0 8px 24px;
  position: relative;
  color: var(--text-light);
}

.legal-content ul li::before {
  content: '•';
  color: var(--accent);
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* ===== Footer ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-about h3 {
  color: #fff;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.footer-about p {
  line-height: 1.8;
  font-size: 0.95rem;
}

.footer-links h4 {
  color: #fff;
  margin-bottom: 20px;
  font-size: 1.1rem;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.9rem;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 968px) {
  .about-content,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-stats {
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    padding: 12px 16px;
    width: 100%;
  }

  .nav-toggle { display: block; }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .hero-content { text-align: center; }
  .hero-buttons { justify-content: center; }
  .hero-stats { justify-content: center; flex-wrap: wrap; }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  section { padding: 60px 0; }
  .feature-card, .contact-form { padding: 24px; }
}