/* ============================================
   BKDF LLC - Corporate Website Styles
   ============================================ */

/* ----- CSS Variables ----- */
:root {
  --color-primary: #0c1929;
  --color-primary-light: #162d4a;
  --color-secondary: #1e4a76;
  --color-accent: #d4a34a;
  --color-accent-light: #e8c06a;
  --color-accent-dark: #b8892e;
  --color-light: #f4f7fb;
  --color-white: #ffffff;
  --color-dark: #0a0f1a;
  --color-text: #2c3e50;
  --color-text-light: #6b7a8d;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.2);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  line-height: 1.7;
  background-color: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
  position: relative;
}

.section-label::after {
  content: '';
  display: inline-block;
  width: 30px;
  height: 2px;
  background: var(--color-accent);
  margin-left: 12px;
  vertical-align: middle;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 600px;
  line-height: 1.8;
}

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

.text-center .section-subtitle {
  margin: 0 auto;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  letter-spacing: 0.3px;
}

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

.btn-primary:hover {
  background: var(--color-accent-light);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 163, 74, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* ----- Navigation ----- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(12, 25, 41, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}

.nav.scrolled {
  background: rgba(12, 25, 41, 0.98);
  box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
}

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

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--color-accent);
}

.nav-links a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition);
  border-radius: 2px;
}

/* ----- Hero Section ----- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-primary);
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(212,163,74,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,163,74,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-gradient-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(30,74,118,0.3) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(212,163,74,0.08) 0%, transparent 50%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 50%;
  opacity: 0;
  animation: floatParticle 8s infinite;
}

@keyframes floatParticle {
  0%, 100% { opacity: 0; transform: translateY(0) scale(0); }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { opacity: 0; transform: translateY(-100vh) scale(1); }
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: var(--nav-height);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(212,163,74,0.12);
  border: 1px solid rgba(212,163,74,0.2);
  border-radius: 50px;
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3.8rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.6);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 36px;
}

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

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  padding: 32px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.hero-stat-value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 6px;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ----- Services Section ----- */
.services {
  background: var(--color-white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(212,163,74,0.12), rgba(212,163,74,0.05));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ----- About Section ----- */
.about {
  background: var(--color-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 20px;
}

.about-content > p {
  font-size: 1.05rem;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 24px;
}

.about-details {
  display: grid;
  gap: 16px;
}

.about-detail-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.about-detail-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 2px;
}

.about-detail-text h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.about-detail-text p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.about-visual-card {
  background: var(--color-white);
  padding: 28px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.about-visual-card .number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  display: block;
  margin-bottom: 4px;
}

.about-visual-card .label {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.about-visual-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

/* ----- Why Us Section ----- */
.why-us {
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.why-us::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212,163,74,0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.why-us .section-title {
  color: var(--color-white);
}

.why-us .section-subtitle {
  color: rgba(255,255,255,0.5);
}

.why-us-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 50px;
  position: relative;
  z-index: 1;
}

.why-us-card {
  text-align: center;
  padding: 36px 20px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}

.why-us-card:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(212,163,74,0.2);
  transform: translateY(-4px);
}

.why-us-card .icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}

.why-us-card h4 {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.why-us-card p {
  color: rgba(255,255,255,0.5);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* ----- Contact Section ----- */
.contact {
  background: var(--color-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 50px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

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

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: rgba(212,163,74,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.contact-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.contact-item p, .contact-item a {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

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

.contact-form {
  background: var(--color-light);
  padding: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-text);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(212,163,74,0.1);
}

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

/* ----- Footer ----- */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.6);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-brand .nav-logo {
  margin-bottom: 16px;
  font-size: 1.3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

.footer h4 {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links a {
  display: block;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  padding: 6px 0;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.35);
}

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

.footer-bottom-links a {
  color: rgba(255,255,255,0.35);
  font-size: 0.85rem;
}

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

/* ----- Page Header (for subpages) ----- */
.page-header {
  background: var(--color-primary);
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(30,74,118,0.2) 0%, transparent 60%);
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.5);
  max-width: 600px;
}

/* ----- Legal Pages Content ----- */
.legal-content {
  padding: 80px 0;
}

.legal-content .container {
  max-width: 860px;
}

.legal-content .last-updated {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.legal-section {
  margin-bottom: 40px;
}

.legal-section h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.legal-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  margin-top: 24px;
}

.legal-section p {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 14px;
}

.legal-section ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 14px;
}

.legal-section ul li {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 4px;
}

/* ----- CTA Section ----- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(212,163,74,0.08) 0%, transparent 60%);
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.5);
  max-width: 600px;
  margin: 0 auto 32px;
}

/* ----- Animations ----- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----- Mobile Navigation ----- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .hero p {
    margin: 0 auto 36px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    max-width: 400px;
    margin: 0 auto;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-us-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(12,25,41,0.98);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-stat-value {
    font-size: 1.6rem;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-visual {
    grid-template-columns: 1fr 1fr;
  }

  .why-us-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-form {
    padding: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

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

  .legal-content {
    padding: 40px 0;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    padding: 20px;
  }

  .about-visual {
    grid-template-columns: 1fr;
  }
}