/* === DBK Solutions — Design System === */

:root {
  --bg-dark: #0f172a;
  --bg-light: #f8fafc;
  --bg-mid: #1e293b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --text-light: #f8fafc;
  --text-dark: #0f172a;
  --text-muted-dark: #94a3b8;
  --text-muted-dark-2: #64748b;
  --text-muted-light: #475569;
  --border-dark: #334155;
  --border-light: #e2e8f0;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --max-width: 960px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-light);
  background: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* === Skip Link === */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: 4px;
  z-index: 1000;
  font-size: 13px;
}
.skip-link:focus { top: 8px; }

/* === Navigation === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-dark);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  color: var(--text-light);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted-dark);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text-light); }

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 6px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 12px !important;
  transition: background 0.15s;
}
.nav-cta:hover { background: var(--accent-hover) !important; }

.nav-lang {
  color: var(--text-muted-dark-2) !important;
  font-size: 11px !important;
  border: 1px solid var(--border-dark);
  padding: 3px 10px;
  border-radius: 4px;
  transition: border-color 0.15s;
}
.nav-lang:hover { border-color: var(--text-muted-dark); }

/* Hamburger */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-light);
  margin: 5px 0;
  transition: transform 0.2s, opacity 0.2s;
}

/* === Sections === */
.section-dark { background: var(--bg-dark); }
.section-light { background: var(--bg-light); color: var(--text-dark); }
.section-mid { background: var(--bg-mid); }

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 24px;
}

.section-label {
  color: var(--accent);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  font-weight: 600;
  margin-bottom: 8px;
}

.section-heading {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

/* === Hero === */
.hero {
  text-align: center;
  padding: 80px 24px 72px;
}

.hero .section-inner {
  padding: 0;
  max-width: 600px;
}

.hero-eyebrow {
  color: var(--accent);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-headline {
  color: var(--text-light);
  font-size: 36px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  white-space: pre-line;
}

.hero-subline {
  color: var(--text-muted-dark-2);
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
  cursor: pointer;
  border: none;
}

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

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-dark);
  color: var(--text-muted-dark);
}
.btn-outline:hover { border-color: var(--text-muted-dark); color: var(--text-light); }

/* === Services Grid === */
.services-section { border-left: 3px solid var(--accent); }
.services-section .section-inner { padding-left: 32px; }

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 24px;
}

.service-icon {
  font-size: 24px;
  margin-bottom: 8px;
}

.service-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.service-card p {
  color: var(--text-muted-light);
  font-size: 13px;
}

/* === How We Work === */
.steps {
  display: flex;
  gap: 24px;
  margin-top: 8px;
}

.step {
  flex: 1;
  text-align: center;
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-mid);
  color: var(--accent);
  font-weight: 700;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
}

.step h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 2px;
}

.step p {
  color: var(--text-muted-dark-2);
  font-size: 12px;
}

/* === About === */
.about-text {
  color: var(--text-muted-light);
  font-size: 15px;
  line-height: 1.7;
  max-width: 600px;
}

/* === CTA Banner === */
.cta-banner {
  text-align: center;
}

.cta-banner .section-heading {
  color: var(--text-light);
}

.cta-banner p {
  color: var(--text-muted-dark-2);
  font-size: 14px;
  margin-bottom: 24px;
}

/* === Footer === */
.footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-dark);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left {
  color: var(--text-muted-dark-2);
  font-size: 12px;
}

.footer-right {
  display: flex;
  gap: 20px;
}

.footer-right a,
.footer-right span {
  color: var(--text-muted-dark-2);
  font-size: 12px;
}

/* === Contact Form === */
.contact-form {
  max-width: 480px;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted-dark);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-mid);
  border: 1px solid var(--border-dark);
  border-radius: 6px;
  color: var(--text-light);
  font-family: var(--font);
  font-size: 14px;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

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

.form-checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 12px;
  color: var(--text-muted-dark);
  line-height: 1.5;
}

.form-checkbox input[type="checkbox"] {
  width: auto;
  margin-top: 3px;
  accent-color: var(--accent);
}

.form-errors {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 20px;
}

.form-errors li {
  color: #f87171;
  font-size: 13px;
  list-style: none;
}

.form-success {
  text-align: center;
  padding: 40px 0;
}

.form-success h2 {
  color: var(--text-light);
  font-size: 22px;
  margin-bottom: 8px;
}

.form-success p {
  color: var(--text-muted-dark);
  font-size: 14px;
}

/* === Privacy === */
.privacy-content h2 {
  font-size: 18px;
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 8px;
}

.section-light .privacy-content h2 { color: var(--text-dark); }

.privacy-content p {
  color: var(--text-muted-light);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 12px;
}

/* === Responsive === */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-dark);
    padding: 16px 24px;
    gap: 16px;
  }
  .nav-hamburger { display: block; }

  .hero-headline { font-size: 26px; }
  .hero-subline { font-size: 14px; }

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

  .steps { flex-direction: column; gap: 20px; }

  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}