/* ==============================
   CSS RESET & BASE
   ============================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Dark palette */
  --bg-base:     #0b0f1a;
  --bg-surface:  #111827;
  --bg-raised:   #182035;
  --bg-card:     #141c2e;

  /* Borders */
  --border:      #1e2d42;
  --border-mid:  #2a3d58;

  /* Text */
  --text-bright: #f1f5f9;
  --text-body:   #c8d6e8;
  --text-muted:  #7a95b0;

  /* Accent blue */
  --blue:        #3b82f6;
  --blue-dark:   #2563eb;
  --blue-glow:   rgba(59,130,246,0.22);
  --blue-subtle: rgba(59,130,246,0.12);
  --blue-mid:    rgba(59,130,246,0.25);

  /* Other accents */
  --green:       #10b981;
  --green-subtle:rgba(16,185,129,0.12);
  --purple:      #8b5cf6;
  --purple-subtle:rgba(139,92,246,0.12);
  --orange:      #f59e0b;
  --orange-subtle:rgba(245,158,11,0.12);
  --teal:        #06b6d4;
  --teal-subtle: rgba(6,182,212,0.12);
  --indigo:      #6366f1;
  --indigo-subtle:rgba(99,102,241,0.12);

  --white: #ffffff;

  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 18px;

  --shadow:    0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.55);

  --transition: 0.2s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
  font-family: var(--font);
  color: var(--text-body);
  background: var(--bg-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

/* ==============================
   LAYOUT
   ============================== */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==============================
   TYPOGRAPHY HELPERS
   ============================== */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-subtle);
  border: 1px solid var(--blue-mid);
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--text-bright);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ==============================
   BUTTONS
   ============================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn-primary:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--blue-glow);
}

.btn-outline {
  background: transparent;
  color: var(--blue);
  border-color: var(--blue-mid);
}
.btn-outline:hover {
  background: var(--blue-subtle);
  border-color: var(--blue);
  transform: translateY(-1px);
}

.btn-sm   { padding: 8px 18px;  font-size: 0.875rem; }
.btn-lg   { padding: 14px 28px; font-size: 1rem; }
.btn-full { width: 100%; }

/* ==============================
   NAVIGATION
   ============================== */
.nav-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 9, 18, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(59,130,246,0.12);
  transition: box-shadow var(--transition), background var(--transition);
}
.nav-header.scrolled {
  background: rgba(6, 9, 18, 0.94);
  box-shadow: 0 4px 32px rgba(0,0,0,0.6);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 24px;
}

.nav-logo { display: flex; align-items: center; }

.logo-img {
  width: 250px;
  height: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-body);
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover {
  color: var(--text-bright);
  background: var(--bg-raised);
}

.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(--text-bright);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ==============================
   HERO
   ============================== */
.hero {
  padding: 96px 0 112px;
  background: radial-gradient(ellipse 80% 60% at 60% -10%, rgba(59,130,246,0.18) 0%, transparent 70%),
              linear-gradient(180deg, #0d1220 0%, var(--bg-base) 100%);
  overflow: hidden;
}

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

.hero-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-subtle);
  border: 1px solid var(--blue-mid);
  padding: 5px 14px;
  border-radius: 99px;
  margin-bottom: 20px;
}

.hero-headline {
  font-size: clamp(2.2rem, 4vw, 3.3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-bright);
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 500px;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-trust { display: flex; gap: 24px; flex-wrap: wrap; }

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}
.trust-item svg { color: var(--green); flex-shrink: 0; }

/* Hero visual card */
.hero-visual { display: flex; justify-content: center; }

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  width: 100%;
  max-width: 400px;
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-bright);
}

.card-dot { width: 10px; height: 10px; border-radius: 50%; }
.card-dot.green { background: var(--green); box-shadow: 0 0 0 3px var(--green-subtle); }

.hero-flow { display: flex; flex-direction: column; gap: 0; }

.flow-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius);
  background: var(--bg-raised);
  border: 1px solid var(--border);
}

.flow-connector {
  width: 2px;
  height: 14px;
  background: var(--border-mid);
  margin-left: 24px;
}

.flow-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-mid);
  border-radius: 8px;
  flex-shrink: 0;
  color: var(--blue);
}

.flow-text { flex: 1; display: flex; flex-direction: column; }
.flow-text strong { font-size: 0.875rem; color: var(--text-bright); }
.flow-text span   { font-size: 0.75rem;  color: var(--text-muted); }

.flow-status {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 99px;
}
.flow-status.done    { background: var(--green-subtle);  color: var(--green); }
.flow-status.running { background: var(--blue-subtle);   color: var(--blue);  }

.hero-card-footer {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.stat { font-size: 0.8rem; color: var(--text-muted); }

/* ==============================
   PROBLEMS
   ============================== */
.problems {
  padding: 96px 0;
  background: var(--bg-surface);
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.problem-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.problem-card:hover {
  border-color: var(--border-mid);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.problem-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-subtle);
  color: var(--blue);
  border-radius: 10px;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 8px;
}
.problem-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==============================
   SERVICES
   ============================== */
.services {
  padding: 96px 0;
  background: var(--bg-base);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
  border-color: var(--border-mid);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  margin-bottom: 20px;
}
.service-icon.blue   { background: var(--blue-subtle);   color: var(--blue);   }
.service-icon.green  { background: var(--green-subtle);  color: var(--green);  }
.service-icon.purple { background: var(--purple-subtle); color: var(--purple); }
.service-icon.orange { background: var(--orange-subtle); color: var(--orange); }
.service-icon.teal   { background: var(--teal-subtle);   color: var(--teal);   }
.service-icon.indigo { background: var(--indigo-subtle); color: var(--indigo); }

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}

.service-list { display: flex; flex-direction: column; gap: 7px; }
.service-list li {
  font-size: 0.83rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}
.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}

/* ==============================
   HOW IT WORKS
   ============================== */
.how-it-works {
  padding: 96px 0;
  background: var(--bg-surface);
  text-align: center;
}
.how-it-works .section-sub { margin-left: auto; margin-right: auto; }

.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.step-card {
  flex: 1;
  max-width: 300px;
  padding: 40px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  text-align: center;
}

.step-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--blue-mid);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.step-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-subtle);
  border: 1px solid var(--blue-mid);
  border-radius: 16px;
  margin: 0 auto 20px;
  color: var(--blue);
}

.step-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 10px;
}
.step-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.step-divider {
  color: var(--border-mid);
  padding: 0 16px;
  flex-shrink: 0;
}

/* ==============================
   USE CASES
   ============================== */
.use-cases {
  padding: 96px 0;
  background: var(--bg-base);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.case-card:hover {
  border-color: var(--border-mid);
  box-shadow: var(--shadow);
}

.case-tag {
  display: inline-block;
  font-size: 0.73rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--blue);
  background: var(--blue-subtle);
  border: 1px solid var(--blue-mid);
  padding: 3px 10px;
  border-radius: 99px;
  align-self: flex-start;
}

.case-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.3;
}

.case-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.case-solution {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.case-solution-label {
  font-size: 0.73rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.case-solution ul { display: flex; flex-direction: column; gap: 8px; }
.case-solution li {
  font-size: 0.85rem;
  color: var(--text-body);
  padding-left: 18px;
  position: relative;
  line-height: 1.4;
}
.case-solution li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-size: 0.8rem;
}

.case-result {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--green);
  padding-top: 4px;
}
.case-result svg { flex-shrink: 0; }

/* ==============================
   BENEFITS
   ============================== */
.benefits {
  padding: 96px 0;
  background: linear-gradient(135deg, #0d1e3a 0%, #0b1628 50%, #0d1b30 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.benefits-inner {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
}

.benefits .section-label {
  color: #93c5fd;
  background: rgba(59,130,246,0.15);
  border-color: rgba(59,130,246,0.3);
}
.benefits .section-title { color: var(--white); }
.benefits .section-sub   { color: #93afc8; margin-bottom: 32px; }

.benefits .btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.benefits .btn-primary:hover {
  background: var(--blue-dark);
  box-shadow: 0 4px 16px var(--blue-glow);
}

.benefits-list { display: flex; flex-direction: column; gap: 24px; }

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

.benefit-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,130,246,0.15);
  color: #93c5fd;
  border-radius: 10px;
  flex-shrink: 0;
  border: 1px solid rgba(59,130,246,0.2);
}

.benefit-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--white); margin-bottom: 4px; }
.benefit-item p  { font-size: 0.875rem; color: #93afc8; line-height: 1.55; }

/* ==============================
   CONTACT / CTA
   ============================== */
.contact {
  padding: 96px 0;
  background: var(--bg-surface);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-text .section-title { margin-bottom: 16px; }
.contact-text p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 28px;
}

.contact-reassurances { display: flex; flex-direction: column; gap: 10px; }
.reassurance {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}
.reassurance svg { color: var(--green); flex-shrink: 0; }

.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

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

.required { color: var(--blue); }

.form-group input,
.form-group textarea {
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--text-bright);
  background: var(--bg-raised);
  border: 1.5px solid var(--border-mid);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-glow);
}
.form-group textarea { resize: vertical; min-height: 110px; }

.form-message {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
}
.form-message.success {
  background: var(--green-subtle);
  color: var(--green);
  border: 1px solid rgba(16,185,129,0.3);
}
.form-message.error {
  background: rgba(239,68,68,0.1);
  color: #f87171;
  border: 1px solid rgba(239,68,68,0.25);
}

/* ==============================
   FOOTER
   ============================== */
.footer {
  background: #070b14;
  color: var(--text-body);
  padding: 64px 0 0;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-logo {
  width: 200px;
  height: auto;
  margin-bottom: 18px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 14px;
}

.footer-email {
  font-size: 0.875rem;
  color: var(--blue);
  font-weight: 500;
  transition: color var(--transition);
}
.footer-email:hover { color: #93c5fd; }

.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-bright);
  margin-bottom: 16px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--text-bright); }

.footer-cta { margin-top: 20px; }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: 0.8rem; color: #3d5068; }

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual     { display: none; }
  .benefits-inner  { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid     { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 900px) {
  .problems-grid { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .cases-grid    { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .steps-grid    { flex-direction: column; gap: 0; }
  .step-divider  { transform: rotate(90deg); padding: 8px 0; }
  .step-card     { max-width: 100%; width: 100%; }
}

@media (max-width: 680px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(6, 9, 18, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(59,130,246,0.12);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 4px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-header { position: relative; }

  .logo-img { width: 180px; height: auto; }

  .hero { padding: 64px 0 80px; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { text-align: center; }

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

  .contact-form-wrap { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .section-sub { margin-bottom: 32px; }
}

@media (max-width: 400px) {
  .hero-trust { flex-direction: column; gap: 10px; }
}