/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* BASE */
body {
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

/* =========================
   NAVIGATION (STICKY + SCROLL)
========================= */
.nav {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;

  background: transparent;
  transition: all 0.3s ease;
  padding: 20px 0;
}

.nav.scrolled {
  background: rgba(2, 6, 23, 0.95);
  backdrop-filter: blur(10px);
  padding: 10px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* LOGO */
.logo {
  font-size: 1.5rem;
  transition: 0.3s;
}

.nav.scrolled .logo {
  font-size: 1.2rem;
}

/* MENU */
nav {
  display: flex;
  align-items: center;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #e2e8f0;
  transition: 0.2s;
}

nav a:hover {
  color: #6366f1;
}

/* CTA BUTTON */
.cta {
  background: #6366f1;
  padding: 8px 14px;
  border-radius: 6px;
  color: white;
}

/* MOBILE MENU */
.menu-toggle {
  display: none;
  font-size: 24px;
  cursor: pointer;
}

@media (max-width: 768px) {

  .menu-toggle {
    display: block;
  }

  nav {
    position: absolute;
    top: 60px;
    right: 10px;
    background: #020617;
    flex-direction: column;
    width: 220px;
    display: none;
    padding: 20px;
    border-radius: 10px;
  }

  nav.active {
    display: flex;
  }

  nav a {
    margin: 10px 0;
  }
}

/* =========================
   HERO
========================= */
.hero {
  padding: 120px 20px;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
}

.hero p {
  max-width: 600px;
  margin: auto;
  margin-bottom: 30px;
  font-size: 1.1rem;
}

/* BUTTONS */
.btn-primary {
  background: #6366f1;
  padding: 12px 24px;
  border-radius: 8px;
  color: white;
  text-decoration: none;
  margin-right: 10px;
  display: inline-block;
}

.btn-secondary {
  border: 1px solid #6366f1;
  padding: 12px 24px;
  border-radius: 8px;
  color: #6366f1;
  text-decoration: none;
}

.large {
  margin-top: 20px;
}

/* =========================
   SECTIONS
========================= */
section {
  padding: 80px 0;
}

h1, h2, h3 {
  margin-bottom: 15px;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

/* CARDS */
.card {
  background: #1e293b;
  padding: 20px;
  border-radius: 10px;
}

.highlight {
  border: 2px solid #6366f1;
}

/* STEPS */
.steps {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
}

.step {
  width: 22%;
}

/* =========================
   EXPANDABLE APPROACH
========================= */
.approach-expand {
  background: #020617;
  padding: 60px 0;
  transition: all 0.3s ease;
}

.approach-expand.hidden {
  display: none;
}

.approach-expand .intro {
  max-width: 700px;
  margin-bottom: 40px;
}

/* =========================
   CTA SECTION
========================= */
.cta-section {
  text-align: center;
  background: #020617;
}

/* =========================
   FORM (BOOK DEMO)
========================= */
.subtitle {
  margin-bottom: 30px;
  max-width: 600px;
}

form label {
  display: block;
  margin-top: 10px;
  font-size: 0.9rem;
}

form input,
form textarea,
form select {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  margin-bottom: 10px;
  border-radius: 6px;
  border: none;
}

/* DEMO STEPS */
.demo-steps li {
  margin-bottom: 10px;
}

/* =========================
   FOOTER
========================= */
footer {
  text-align: center;
  padding: 20px;
  background: #020617;
}

/* =========================
   RESPONSIVE GRID FIXES
========================= */
@media (max-width: 900px) {

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .steps {
    flex-direction: column;
  }

  .step {
    width: 100%;
    margin-bottom: 20px;
  }
}
/* FORM CONTAINER */
.demo-form {
  background: #1e293b;
  padding: 25px;
  border-radius: 12px;
}

/* LABELS */
.demo-form label {
  display: block;
  margin-top: 12px;
  margin-bottom: 5px;
  font-size: 0.9rem;
  color: #e2e8f0;
}

/* INPUTS + TEXTAREA + SELECT */
.demo-form input,
.demo-form textarea,
.demo-form select {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  background: #0f172a;
  color: #e2e8f0;
  outline: none;
}

/* FOCUS STATE (IMPORTANT UX IMPROVEMENT) */
.demo-form input:focus,
.demo-form textarea:focus,
.demo-form select:focus {
  border: 1px solid #6366f1;
  box-shadow: 0 0 0 2px rgba(99,102,241,0.2);
}

/* BUTTON ALIGNMENT */
.demo-form button {
  margin-top: 20px;
  width: 100%;
}
/* CONTACT STRIP */
.contact-strip {
  background: #020617;
  padding: 80px 0;
  text-align: center;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
}

/* MOBILE RESPONSIVE */
@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}
/* WIDER GRID FOR CONTACT + FORM */
.contact-grid-wide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 30px;
}

/* CALLBACK FORM */
.callback-form input,
.callback-form textarea,
.callback-form select {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 6px;
  border: none;
  background: #0f172a;
  color: #e2e8f0;
}

/* MOBILE RESPONSIVE */
@media (max-width: 768px) {
  .contact-grid-wide {
    grid-template-columns: 1fr;
  }
}