/* Business Expert — Redesign 2026 */

:root {
  --primary: #3B82F6;
  --primary-hover: #2563EB;
  --primary-light: rgba(59, 130, 246, 0.08);
  --primary-glow: rgba(59, 130, 246, 0.25);
  --gradient: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(59,130,246,0.06) 0%, rgba(37,99,235,0.04) 100%);

  --accent: #F59E0B;
  --accent-hover: #D97706;

  --bg-page: #FAFAF8;
  --bg-section: #F5F3F0;
  --surface: #FFFFFF;

  --text-primary: #1C1917;
  --text-secondary: #57534E;
  --text-tertiary: #A8A29E;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-primary: 0 4px 14px rgba(59,130,246,0.3);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --transition: 300ms ease;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-page);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Header ─── */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
}

.cta-button {
  background: var(--gradient);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all var(--transition);
  box-shadow: var(--shadow-primary);
}

.cta-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(59,130,246,0.4);
}

/* Hamburger */

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav overlay */

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--transition);
}

.mobile-nav.open {
  opacity: 1;
}

.mobile-nav-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background: var(--surface);
  padding: 80px 32px 32px;
  transform: translateX(100%);
  transition: transform var(--transition);
  box-shadow: var(--shadow-lg);
}

.mobile-nav.open .mobile-nav-panel {
  transform: translateX(0);
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav-links a {
  display: block;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.mobile-nav-links a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.mobile-nav-cta {
  display: block;
  margin-top: 24px;
  text-align: center;
  background: var(--gradient);
  color: #fff;
  padding: 14px;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 600;
}

/* ─── Hero ─── */

.hero {
  padding: 120px 0 80px;
  background: linear-gradient(160deg, #F0F9FF 0%, #E0F2FE 50%, #BAE6FD 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.12;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.hero-title .highlight {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
  max-width: 540px;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient);
  color: #fff;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(59,130,246,0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  background: var(--surface);
  color: var(--text-primary);
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.hero-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.7);
  padding: 8px 16px;
  border-radius: var(--radius-full);
}

.hero-note svg {
  width: 16px;
  height: 16px;
  color: #10B981;
  flex-shrink: 0;
}

/* ─── Stats ─── */

.stats-section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--surface);
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: 40px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ─── Services ─── */

.services-section {
  padding: 0 0 80px;
}

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

.feature-card {
  background: var(--surface);
  padding: 32px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--gradient-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.feature-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-description {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ─── Process ─── */

.process-section {
  background: var(--bg-section);
  padding: 80px 0;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  background: var(--surface);
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.step-number {
  width: 36px;
  height: 36px;
  background: var(--gradient);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 16px;
}

.step-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-description {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ─── Promo ─── */

.promo-section {
  background: var(--gradient);
  border-radius: var(--radius-xl);
  padding: 56px;
  color: #fff;
  text-align: center;
  margin: 80px 0;
  position: relative;
  overflow: hidden;
}

.promo-section::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -30%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  pointer-events: none;
}

.promo-content {
  position: relative;
  z-index: 2;
}

.promo-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
}

.promo-title {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  margin-bottom: 12px;
}

.promo-subtitle {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.promo-offers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 600px;
  margin: 0 auto 32px;
}

.promo-offer {
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
}

.offer-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.offer-price {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
}

.offer-original {
  text-decoration: line-through;
  opacity: 0.6;
  font-size: 14px;
  margin-bottom: 8px;
}

.offer-description {
  font-size: 13px;
  opacity: 0.85;
}

.btn-white {
  background: #fff !important;
  color: var(--primary) !important;
  box-shadow: var(--shadow-md) !important;
}

.btn-white:hover {
  box-shadow: var(--shadow-lg) !important;
}

/* ─── Contact ─── */

.contact-section {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 56px;
  margin: 0 0 80px;
  box-shadow: var(--shadow-sm);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.contact-info h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.6;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--gradient-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.contact-item-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.contact-item-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.contact-item-text a {
  color: var(--primary);
  text-decoration: none;
}

.contact-item-text a:hover {
  text-decoration: underline;
}

.contact-form {
  display: grid;
  gap: 20px;
}

.form-group {
  display: grid;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  padding: 12px 16px;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 15px;
  background: var(--bg-section);
  transition: all var(--transition);
  font-family: inherit;
  color: var(--text-primary);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.submit-btn {
  background: var(--gradient);
  color: #fff;
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--shadow-primary);
}

.submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(59,130,246,0.4);
}

.submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.form-note {
  font-size: 12px;
  color: var(--text-tertiary);
  text-align: center;
}

/* ─── Footer ─── */

.footer {
  background: var(--text-primary);
  color: rgba(255,255,255,0.6);
  padding: 24px 0;
  text-align: center;
  font-size: 14px;
}

/* ─── Floating WhatsApp ─── */

.floating-wa {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 900;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  transition: all var(--transition);
  text-decoration: none;
}

.floating-wa:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
}

.floating-wa svg {
  width: 28px;
  height: 28px;
  fill: #fff;
}

/* ─── Alerts ─── */

.alert {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
  display: none;
  animation: fadeInUp 0.3s ease;
}

.alert.show { display: block; }

.alert-success {
  background: #ECFDF5;
  color: #065F46;
}

.alert-error {
  background: #FEF2F2;
  color: #991B1B;
}

/* ─── Animations ─── */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ─── */

@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links,
  .nav .cta-button { display: none; }

  .menu-toggle { display: flex; }
  .mobile-nav { display: block; }

  .hero { padding: 100px 0 60px; }

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

  .hero-buttons { flex-direction: column; }
  .btn-primary, .btn-secondary { justify-content: center; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-card { padding: 24px 16px; }
  .stat-number { font-size: 32px; }

  .features-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .promo-offers { grid-template-columns: 1fr; }

  .promo-section { padding: 40px 24px; margin: 60px 0; }

  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-section { padding: 40px 24px; margin-bottom: 60px; }

  .floating-wa { bottom: 20px; right: 20px; width: 52px; height: 52px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}