/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--gradient-hero);
  display: flex;
  align-items: flex-start;
  padding-top: 3rem;
  overflow: visible;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.floating-coins {
  position: absolute;
  width: 100%;
  height: 100%;
}

.coin-float {
  position: absolute;
  font-size: 2rem;
  opacity: 0.7;
  animation: float 6s ease-in-out infinite;
}

.coin-1 { top: 20%; left: 10%; animation-delay: 0s; }
.coin-2 { top: 60%; left: 80%; animation-delay: 1s; }
.coin-3 { top: 30%; left: 70%; animation-delay: 2s; }
.coin-4 { top: 80%; left: 20%; animation-delay: 3s; }
.coin-5 { top: 10%; left: 50%; animation-delay: 4s; }

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: flex-start;
  position: relative;
  z-index: 2;
  padding: 2rem 0;
}

.hero-text {
  color: white;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.2);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--font-sm);
  font-weight: 500;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: var(--font-6xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, #ffd700, #ffed4e, #ffffff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: var(--font-2xl);
  font-weight: 400;
  opacity: 0.9;
}

.hero-message {
  margin-bottom: 2rem;
}

.hero-message p {
  font-size: var(--font-lg);
  opacity: 0.9;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.hero-question {
  color: #FFD700; /* Màu vàng gold để nổi bật */
  font-style: italic;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5); /* Thêm bóng đổ để dễ đọc */
  font-weight: 500; /* Làm đậm chữ thêm một chút */
}

.hero-solution {
  color: var(--text-white);
  font-weight: 500;
}

.hero-action {
  color: var(--text-white);
  font-weight: 600;
  background: linear-gradient(90deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
  padding: 1rem;
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary-light);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
}

/* Buttons: primary and secondary */
.btn-primary {
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  box-shadow: var(--shadow-md);
  font-weight: 700;
}
.btn-primary:hover { transform: translateY(-2px); }

.btn-secondary {
  background: transparent;
  color: white;
  border: 1px solid rgba(255,255,255,0.18);
  font-weight: 600;
}
.btn-secondary:hover { background: rgba(255,255,255,0.06); }


/* Hero visual card & stats (restored) */
.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

.hero-card {
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,0.06);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  justify-content: flex-start;
}

.card-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  color: white;
  font-size: 1.1rem;
}

.card-title {
  font-size: var(--font-lg);
  font-weight: 700;
  color: white;
  text-align: left;
}

.card-content {
  padding-top: 0.5rem;
}

.hero-stats {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  align-items: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: white;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFD700; /* gold */
  text-shadow: 0 2px 6px rgba(0,0,0,0.35);
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
}