/* =============================================
   WCSS Construction — Modern One-Page Site
   ============================================= */

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

:root {
  --navy-900: #0a1628;
  --navy-800: #0f2140;
  --navy-700: #1a3560;
  --navy-600: #2563a8;
  --blue-accent: #3b82f6;
  --blue-light: #dbeafe;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-800: #1e293b;
  --amber: #f59e0b;
  --amber-dark: #d97706;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 12px 48px rgba(10, 22, 40, 0.12);
  --transition: 0.2s ease;
  --header-h: 72px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

address {
  font-style: normal;
}

/* --- Utilities --- */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-accent);
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--navy-900);
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--gray-600);
  font-size: 1.0625rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--amber);
  color: var(--navy-900);
  border-color: var(--amber);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  background: var(--amber-dark);
  border-color: var(--amber-dark);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-light {
  background: var(--white);
  color: var(--navy-900);
  border-color: var(--white);
}

.btn-light:hover {
  background: var(--gray-100);
}

.btn-lg {
  padding: 0.9375rem 2rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

/* --- Header --- */
.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy-900);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  color: var(--white);
  font-weight: 700;
  font-size: 1.125rem;
  z-index: 101;
}

.logo-mark {
  background: var(--amber);
  color: var(--navy-900);
  font-weight: 800;
  font-size: 0.875rem;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  letter-spacing: 0.04em;
}

.logo-text {
  font-weight: 500;
  opacity: 0.9;
}

.nav-toggle-label {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 101;
  padding: 4px;
}

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

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition);
}

.main-nav a:hover {
  color: var(--white);
}

.btn-nav {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

/* --- Hero --- */
.hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 50%, var(--navy-700) 100%);
  color: var(--white);
  padding: 5rem 0 6rem;
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 10% 80%, rgba(245, 158, 11, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
}

.hero-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.hero-trust li {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-trust li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 50%;
  flex-shrink: 0;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(12px);
  width: 100%;
  max-width: 380px;
}

.waveform {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 80px;
  margin-bottom: 1.5rem;
}

.waveform span {
  display: block;
  width: 4px;
  background: var(--amber);
  border-radius: 4px;
  animation: wave 1.2s ease-in-out infinite;
}

.waveform span:nth-child(1) { height: 20px; animation-delay: 0s; }
.waveform span:nth-child(2) { height: 40px; animation-delay: 0.1s; }
.waveform span:nth-child(3) { height: 60px; animation-delay: 0.2s; }
.waveform span:nth-child(4) { height: 45px; animation-delay: 0.3s; }
.waveform span:nth-child(5) { height: 70px; animation-delay: 0.4s; }
.waveform span:nth-child(6) { height: 50px; animation-delay: 0.5s; }
.waveform span:nth-child(7) { height: 35px; animation-delay: 0.6s; }
.waveform span:nth-child(8) { height: 15px; animation-delay: 0.7s; }

@keyframes wave {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50% { transform: scaleY(0.4); opacity: 1; }
}

.hero-card-label {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.5rem;
}

.hero-card-stat {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-card-stat strong {
  color: var(--amber);
  font-size: 1.75rem;
  font-weight: 800;
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 2rem;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--blue-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--navy-700);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.625rem;
}

.card p {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* --- Applications --- */
.applications {
  background: var(--gray-50);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.app-item {
  background: var(--white);
  padding: 2rem;
  transition: background var(--transition);
}

.app-item:hover {
  background: var(--gray-50);
}

.app-number {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--blue-accent);
  margin-bottom: 0.75rem;
}

.app-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.5rem;
}

.app-item p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* --- Process --- */
.process {
  background: var(--white);
}

.process-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.process-text h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--navy-900);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.process-text p {
  color: var(--gray-600);
  margin-bottom: 2rem;
  font-size: 1.0625rem;
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: step;
}

.process-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--gray-200);
  counter-increment: step;
}

.process-steps li:last-child {
  border-bottom: none;
}

.process-steps li::before {
  content: counter(step, decimal-leading-zero);
  grid-row: span 2;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blue-accent);
  line-height: 1;
  padding-top: 0.125rem;
}

.process-steps strong {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-900);
}

.process-steps span {
  grid-column: 2;
  font-size: 0.9375rem;
  color: var(--gray-600);
}

/* --- About --- */
.about {
  background: var(--gray-50);
}

.about-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--navy-900);
  margin-bottom: 1.25rem;
  line-height: 1.2;
}

.about-content p {
  color: var(--gray-600);
  margin-bottom: 1rem;
  font-size: 1.0625rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-200);
}

.about-stats strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 0.25rem;
}

.about-stats span {
  font-size: 0.8125rem;
  color: var(--gray-600);
}

.testimonial {
  background: var(--navy-900);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
}

.testimonial::before {
  content: '\201C';
  font-size: 5rem;
  line-height: 1;
  color: var(--amber);
  opacity: 0.4;
  position: absolute;
  top: 1rem;
  left: 1.5rem;
  font-family: Georgia, serif;
}

.testimonial p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.25rem;
  position: relative;
  z-index: 1;
}

.testimonial footer {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-700) 100%);
  padding: 4rem 0;
}

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cta-banner h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.0625rem;
}

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

.contact-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy-900);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font);
  font-size: 0.9375rem;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  color: var(--gray-800);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

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

.contact-info {
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.info-block h3 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--blue-accent);
  margin-bottom: 0.5rem;
}

.info-block p,
.info-block address {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.info-block a {
  color: var(--navy-700);
  font-weight: 500;
  transition: color var(--transition);
}

.info-block a:hover {
  color: var(--blue-accent);
}

.info-label {
  font-size: 0.75rem;
  color: var(--gray-400);
  font-weight: 400;
}

/* --- Footer --- */
.site-footer {
  background: var(--navy-900);
  color: rgba(255, 255, 255, 0.6);
  padding: 3rem 0 2rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
}

.footer-brand {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.footer-brand p {
  font-size: 0.875rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 0.75rem;
  max-width: 360px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-content: start;
  justify-content: flex-end;
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

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

.footer-copy {
  grid-column: 1 / -1;
  font-size: 0.8125rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.35);
}

/* =============================================
   Responsive
   ============================================= */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

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

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

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

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

  .process-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .cta-banner-inner {
    flex-direction: column;
    text-align: center;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .nav-toggle-label {
    display: flex;
  }

  .main-nav {
    position: fixed;
    inset: 0;
    background: var(--navy-900);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    padding: 2rem;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .main-nav a {
    font-size: 1.125rem;
  }

  .nav-toggle:checked ~ .site-header .main-nav {
    transform: translateX(0);
  }

  .nav-toggle:checked ~ .site-header .nav-toggle-label span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle:checked ~ .site-header .nav-toggle-label span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked ~ .site-header .nav-toggle-label span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .section {
    padding: 3.5rem 0;
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 3.5rem 0 4rem;
  }

  .hero-visual {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .btn-nav {
    width: 100%;
    text-align: center;
  }
}