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

body {
  font-family: Arial, Helvetica, sans-serif;
  background: radial-gradient(circle at top, #0b1b2b, #000);
  color: #fff;
  line-height: 1.6;
}

/* CONTAINER */
.container {
  max-width: 1200px;
  margin: auto;
  padding: 0 20px;
}

/* HEADER */
.header {
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo img {
  height: 56px;
  width: auto;
  object-fit: contain;
}

.nav a,
.nav span {
  margin-left: 18px;
  color: #cfd8e3;
  text-decoration: none;
  font-size: 14px;
}

.nav a:hover {
  color: #4da3ff;
}

.nav-soon {
  opacity: 0.5;
  cursor: default;
}

/* HERO */
.hero {
  padding: 80px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 20px;
}

.hero-subtitle {
  color: #cfd8e3;
  margin-bottom: 30px;
}

.hero-actions .btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 6px;
  margin-right: 12px;
  text-decoration: none;
  font-weight: bold;
}

.btn-primary {
  background: #1e88e5;
  color: #fff;
}

.btn-secondary {
  border: 1px solid #1e88e5;
  color: #1e88e5;
}

/* HERO VISUAL */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.app-panel {
  background: rgba(255,255,255,0.06);
  border-radius: 10px;
  padding: 18px 20px;
}

.app-panel.muted {
  opacity: 0.7;
}

/* IMAGE SHOWCASE */
.image-section {
  padding: 60px 0;
}

.showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.showcase img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 12px;
}

/* VALUE */
.value {
  padding: 80px 0;
}

.value h2 {
  text-align: center;
  margin-bottom: 50px;
}

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

.value-card {
  background: rgba(255,255,255,0.06);
  padding: 28px;
  border-radius: 12px;
}

/* FLOW */
.flow {
  padding: 80px 0;
  background: rgba(255,255,255,0.03);
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.step span {
  font-size: 28px;
  color: #1e88e5;
  font-weight: bold;
}

/* CONSULT */
.consult {
  padding: 90px 0;
}

.consult-box {
  max-width: 600px;
  margin: auto;
  text-align: center;
}

.consult-form input {
  width: 100%;
  padding: 14px;
  margin-bottom: 14px;
  border-radius: 6px;
  border: none;
}

.consult-form button {
  width: 100%;
  padding: 14px;
}

/* FOOTER */
.footer {
  padding: 30px 0;
  text-align: center;
  font-size: 13px;
  opacity: 0.6;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-grid,
  .value-grid,
  .flow-steps,
  .showcase {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 32px;
  }
}