/* ==========================================================================
   Design System & Styling — Tagihan Pemborong by Siap Niaga Digital
   Theme: Modern Industrial Rustik (Warm Amber, Slate Charcoal, Emerald Accent)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  /* Color Palette */
  --primary-amber: #d97706;
  --primary-amber-hover: #b45309;
  --primary-amber-light: rgba(217, 119, 6, 0.12);
  --primary-amber-glow: rgba(217, 119, 6, 0.25);
  
  --dark-slate-900: #0f172a;
  --dark-slate-800: #1e293b;
  --dark-slate-700: #334155;
  
  --neutral-100: #f8fafc;
  --neutral-200: #f1f5f9;
  --neutral-300: #e2e8f0;
  --neutral-400: #94a3b8;
  --neutral-600: #475569;
  --neutral-800: #1e293b;
  
  --wa-green: #25d366;
  --wa-green-hover: #1da851;
  --wa-green-glow: rgba(37, 211, 102, 0.3);
  
  --card-bg-light: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px -15px rgba(15, 23, 42, 0.12);
  --shadow-amber: 0 12px 30px -8px rgba(217, 119, 6, 0.35);
  --shadow-wa: 0 12px 30px -8px rgba(37, 211, 102, 0.35);

  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Reset & Global Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--neutral-100);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Utilities */
.text-amber { color: var(--primary-amber); }
.text-wa { color: var(--wa-green); }
.bg-amber-light { background-color: var(--primary-amber-light); }

/* Buttons */
.btn {
  display: inline-flex;
  items-center: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-amber) 0%, var(--primary-amber-hover) 100%);
  color: #ffffff;
  box-shadow: var(--shadow-amber);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px -6px rgba(217, 119, 6, 0.45);
}

.btn-wa {
  background: linear-gradient(135deg, var(--wa-green) 0%, var(--wa-green-hover) 100%);
  color: #ffffff;
  box-shadow: var(--shadow-wa);
}

.btn-wa:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px -6px rgba(37, 211, 102, 0.45);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--dark-slate-800);
  border: 1.5px solid var(--neutral-300);
}

.btn-secondary:hover {
  background-color: var(--neutral-200);
  border-color: var(--neutral-400);
  transform: translateY(-2px);
}

.btn-large {
  padding: 18px 36px;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
}

/* Header & Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

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

.logo-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-brand img {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark-slate-900);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary-amber);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.nav-links a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--neutral-600);
  transition: color 0.2s ease;
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

/* Hero Section */
.hero-section {
  padding-top: 150px;
  padding-bottom: 90px;
  position: relative;
  background: radial-gradient(circle at 80% 20%, rgba(217, 119, 6, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 20% 80%, rgba(37, 211, 102, 0.05) 0%, transparent 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--primary-amber-light);
  border: 1px solid rgba(217, 119, 6, 0.3);
  border-radius: 100px;
  color: var(--primary-amber-hover);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.18;
  color: var(--dark-slate-900);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--neutral-600);
  line-height: 1.65;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-trust-notes {
  display: flex;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--neutral-600);
  font-weight: 600;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.trust-item svg {
  color: var(--wa-green);
}

/* Hero Visual / Mockup Frame */
.hero-visual-wrapper {
  position: relative;
}

.mockup-card {
  position: relative;
  background: var(--dark-slate-900);
  padding: 12px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.5s ease;
}

.mockup-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.mockup-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
}

.floating-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--dark-slate-900);
  z-index: 10;
  border: 1px solid rgba(255, 255, 255, 0.5);
  animation: float 4s ease-in-out infinite;
}

.floating-badge-1 {
  top: 30px;
  left: -20px;
}

.floating-badge-2 {
  bottom: 30px;
  right: -20px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Stats Section */
.stats-section {
  padding: 40px 0;
  background-color: var(--dark-slate-900);
  color: #ffffff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-card {
  padding: 20px;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--primary-amber);
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.92rem;
  color: var(--neutral-400);
  font-weight: 500;
}

/* Section Shared */
.section-padding {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-amber);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--dark-slate-900);
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--neutral-600);
}

/* Pain Points vs Solusi */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.comp-card {
  padding: 40px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.comp-card-bad {
  background-color: #ffffff;
  border: 1px solid #fee2e2;
}

.comp-card-good {
  background: linear-gradient(145deg, #ffffff 0%, var(--primary-amber-light) 100%);
  border: 1.5px solid var(--primary-amber);
}

.comp-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.comp-card-bad .comp-title { color: #dc2626; }
.comp-card-good .comp-title { color: var(--primary-amber-hover); }

.comp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.comp-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--neutral-800);
}

.comp-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  margin-top: 2px;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.feature-card {
  background-color: #ffffff;
  padding: 36px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-amber);
}

.feature-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background-color: var(--primary-amber-light);
  color: var(--primary-amber);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark-slate-900);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 1rem;
  color: var(--neutral-600);
  line-height: 1.6;
}

/* How It Works (Timeline) */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.step-card {
  background-color: #ffffff;
  padding: 36px 28px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--neutral-200);
  text-align: center;
  position: relative;
}

.step-number {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--dark-slate-900);
  color: var(--primary-amber);
  font-size: 1.3rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px auto;
  box-shadow: var(--shadow-sm);
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark-slate-900);
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--neutral-600);
}

/* Pricing / Sales Box */
.pricing-section {
  background-color: var(--dark-slate-900);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 70px 40px;
  margin-bottom: 100px;
  text-align: center;
  background-image: radial-gradient(circle at 50% 0%, rgba(217, 119, 6, 0.18) 0%, transparent 60%);
}

.pricing-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.pricing-sub {
  font-size: 1.1rem;
  color: var(--neutral-400);
  max-width: 680px;
  margin: 0 auto 36px auto;
}

/* Testimonial Section */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.testi-card {
  background-color: #ffffff;
  padding: 32px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testi-text {
  font-size: 0.98rem;
  color: var(--neutral-800);
  line-height: 1.65;
  margin-bottom: 24px;
  font-style: italic;
}

.testi-user {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testi-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-amber-light);
  color: var(--primary-amber-hover);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.testi-name {
  font-weight: 700;
  color: var(--dark-slate-900);
  font-size: 0.95rem;
}

.testi-role {
  font-size: 0.82rem;
  color: var(--neutral-600);
}

/* FAQ Accordion */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--neutral-200);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark-slate-900);
  cursor: pointer;
  gap: 16px;
}

.faq-answer {
  padding: 0 28px 22px 28px;
  font-size: 0.98rem;
  color: var(--neutral-600);
  line-height: 1.6;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-icon {
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Final Lead Form Section */
.lead-section {
  background: linear-gradient(135deg, var(--dark-slate-900) 0%, var(--dark-slate-800) 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 60px;
  box-shadow: var(--shadow-lg);
}

.lead-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.lead-info-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
}

.lead-info-desc {
  color: var(--neutral-400);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.lead-form {
  background: #ffffff;
  padding: 36px;
  border-radius: var(--radius-lg);
  color: var(--dark-slate-900);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--dark-slate-800);
}

.form-input, .form-select {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--neutral-300);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.form-input:focus, .form-select:focus {
  border-color: var(--primary-amber);
}

/* Footer */
.footer {
  background-color: var(--dark-slate-900);
  color: var(--neutral-400);
  padding: 60px 0 30px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 100px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 40px;
}

.footer-brand p {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--neutral-400);
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--neutral-400);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.85rem;
  color: var(--neutral-600);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-trust-notes {
    justify-content: center;
  }

  .floating-badge {
    display: none;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .comparison-grid, .features-grid, .testimonials-grid, .lead-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  }

  .nav-links.active {
    display: flex;
  }

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

  .hero-title {
    font-size: 2.2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }
  
  .lead-section {
    padding: 30px 20px;
  }

  .lead-form {
    padding: 24px 18px;
  }
}