/* ===== DDZAM BIRR - Corporate Redesign ===== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #0F4C81;
  --navy-light: #1A6B8A;
  --navy-dark: #0a3560;
  --accent: #00ACC1;
  --accent-light: #26c6da;
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  --font-body: 'Inter', sans-serif;
  --transition: all 0.3s ease;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--gray-800);
  line-height: 1.6;
  background: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

a { text-decoration: none; color: inherit; }

/* --- Navbar --- */
.navbar-custom {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  padding: 0.75rem 0;
}

.navbar-custom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand-custom {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--navy);
}

.logo-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: var(--transition);
}

.navbar-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.25rem;
}

.navbar-links li a {
  padding: 0.5rem 0.75rem;
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: 6px;
  transition: var(--transition);
}

.navbar-links li a:hover,
.navbar-links li a.active {
  color: var(--navy);
  background: var(--gray-50);
}

.btn-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: 8px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-cta:hover {
  background: var(--navy-light);
  transform: translateY(-1px);
}

/* --- Page Header --- */
.page-header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  padding: 7rem 0 3rem;
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

.page-header p {
  margin-top: 0.75rem;
  opacity: 0.85;
  font-size: 1.1rem;
}

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 50%, #0d1b2a 100%);
  color: var(--white);
  padding: 8rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(0,172,193,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.hero h1 span {
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.85;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-img {
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

/* --- Sections --- */
.section {
  padding: 5rem 0;
}

.section-gray {
  background: var(--gray-50);
}

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

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--accent);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg { display: none; }

.feature-icon::after {
  content: '';
  width: 28px;
  height: 28px;
  background: var(--white);
  border-radius: 50%;
}

.feature-card:nth-child(2) .feature-icon {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

.feature-card:nth-child(3) .feature-icon {
  background: linear-gradient(135deg, #10B981, #059669);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* --- Steps --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.step-card {
  text-align: center;
  padding: 2rem;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--accent));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.25rem;
}

.step-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* --- Products --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card {
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

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

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

.product-content {
  padding: 1.5rem;
}

.product-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.product-price {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.product-content p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.btn-product {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  border: 2px solid var(--navy);
  color: var(--navy);
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.btn-product:hover {
  background: var(--navy);
  color: var(--white);
}

/* --- Advantages / Stats --- */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.advantage-card {
  padding: 2rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
}

.advantage-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.75rem;
}

.advantage-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  background: linear-gradient(135deg, var(--navy), var(--navy-dark));
  border-radius: 16px;
  padding: 2.5rem;
  margin-top: 3rem;
  text-align: center;
  color: var(--white);
}

.stat-item h3 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-item p {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* --- Blockchain Networks --- */
.networks-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.network-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--navy);
  transition: var(--transition);
}

.network-badge:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.network-badge .ticker {
  color: var(--gray-500);
  font-weight: 400;
  font-size: 0.8rem;
}

/* --- Contact Bar --- */
.contact-bar {
  background: var(--gray-50);
  padding: 3rem 0;
}

.contact-bar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.75rem;
  font-size: 1.1rem;
}

.contact-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy);
}

.contact-item h4 a {
  color: var(--navy);
}

.contact-item h4 a:hover {
  color: var(--accent);
}

.contact-item p {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-top: 0.25rem;
}

/* --- Footer --- */
.footer {
  background: var(--navy-dark);
  color: var(--white);
  padding: 2rem 0;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.85rem;
  opacity: 0.7;
}

.footer-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--white);
  opacity: 0.7;
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--accent);
}

/* --- Legal Pages --- */
.legal-date {
  color: var(--gray-500);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.section h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-size: 1.5rem;
  color: var(--navy);
}

.section h2:first-of-type { margin-top: 0; }

.section h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--navy);
}

.section ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.section ul li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
  color: var(--gray-700);
}

.section p {
  line-height: 1.8;
  color: var(--gray-700);
  margin-bottom: 1rem;
}

/* --- Two Column Layout --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.two-col img {
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  width: 100%;
}

/* --- Map --- */
.map-section iframe {
  width: 100%;
  height: 350px;
  border: none;
  display: block;
}

/* --- Responsive --- */
@media (max-width: 992px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-image { display: none; }
  .features-grid, .steps-grid, .products-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; }
  .contact-bar-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .navbar-toggle { display: block; }
  .navbar-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-md);
    padding: 1rem;
  }
  .navbar-links.open { display: flex; }
  .navbar-cta { margin-left: 0; margin-top: 0.5rem; }
  .hero { padding: 6rem 0 3rem; }
  .hero h1 { font-size: 2rem; }
  .section { padding: 3rem 0; }
  .page-header { padding: 6rem 0 2rem; }
  .page-header h1 { font-size: 2rem; }
  .footer .container { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.7rem; }
  .section-header h2 { font-size: 1.5rem; }
  .container { padding: 0 1rem; }
  .stats-bar { grid-template-columns: 1fr 1fr; gap: 1rem; padding: 1.5rem; }
  .stat-item h3 { font-size: 1.5rem; }
}