/* ==========================================================================
   PT BERKAH WALIDAIN (BWD) - ENTERPRISE IT SOLUTIONS
   Design System & Styling
   Eye-Friendly Dark Slate & Crimson Teal Palette
   ========================================================================== */

:root {
  /* Color Palette - Eye Friendly & Premium */
  --bg-dark: #0b0f19;
  --bg-card: #151c2e;
  --bg-card-hover: #1e2942;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(225, 29, 72, 0.3);

  /* Primary Accent - Crimson Red (Matching Logo Emblem) */
  --primary-red: #e11d48;
  --primary-red-hover: #f43f5e;
  --primary-red-glow: rgba(225, 29, 72, 0.25);

  /* Secondary Accent - Soft Cyan / Teal (Eye Friendly Tech Vibe) */
  --accent-teal: #14b8a6;
  --accent-cyan: #38bdf8;
  --accent-cyan-glow: rgba(56, 189, 248, 0.15);

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Typography */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Shadows & Glassmorphism */
  --glass-bg: rgba(21, 28, 46, 0.75);
  --glass-border: rgba(255, 255, 255, 0.1);
  --shadow-lg: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(225, 29, 72, 0.15);

  /* Layout */
  --max-width: 1240px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables (Toggleable) */
[data-theme="light"] {
  --bg-dark: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-highlight: rgba(225, 29, 72, 0.4);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Gradient Text */
.text-gradient-red {
  background: linear-gradient(135deg, #f43f5e 0%, #e11d48 50%, #fb7185 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #38bdf8 0%, #14b8a6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(225, 29, 72, 0.12);
  color: #fb7185;
  border: 1px solid rgba(225, 29, 72, 0.3);
  margin-bottom: 1rem;
}

.badge-cyan {
  background: rgba(56, 189, 248, 0.1);
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.25);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-red) 0%, #be123c 100%);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-red-hover) 0%, var(--primary-red) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(225, 29, 72, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-secondary);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
}

.btn-whatsapp:hover {
  background: #20ba5a;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo img {
  height: 48px;
  width: auto;
  border-radius: 6px;
  background: #ffffff;
  padding: 4px;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 600;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Theme Toggle Button */
.theme-toggle {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* Hero Section */
.hero {
  padding: 160px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero-glow-1 {
  position: absolute;
  top: -10%;
  left: 20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.15) 0%, rgba(0,0,0,0) 70%);
  z-index: 0;
  pointer-events: none;
}

.hero-glow-2 {
  position: absolute;
  top: 10%;
  right: 10%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.12) 0%, rgba(0,0,0,0) 70%);
  z-index: 0;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 3.25rem;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.stat-item h4 {
  font-size: 1.75rem;
  color: var(--text-primary);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Hero Visual Box */
.hero-visual {
  position: relative;
}

.visual-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.dot-group {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.visual-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.metric-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.metric-box label {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
}

.metric-box .value {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-top: 4px;
}

.agent-status-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.status-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 10px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(20, 184, 166, 0.15);
  color: var(--accent-teal);
}

/* Technology Partners Section */
.partners-section {
  padding: 40px 0 60px;
  border-y: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.2);
}

.section-label {
  text-align: center;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-weight: 600;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  align-items: center;
}

.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: var(--transition-normal);
}

.partner-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.partner-card h3 {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.partner-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Solutions Section */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3.5rem;
}

.section-header h2 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.solution-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.solution-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(225, 29, 72, 0.1);
  color: var(--primary-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(225, 29, 72, 0.2);
}

.solution-card.cyan .solution-icon {
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-cyan);
  border-color: rgba(56, 189, 248, 0.2);
}

.solution-card.teal .solution-icon {
  background: rgba(20, 184, 166, 0.1);
  color: var(--accent-teal);
  border-color: rgba(20, 184, 166, 0.2);
}

.solution-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.solution-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
}

.feature-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-list li svg {
  color: var(--accent-teal);
  flex-shrink: 0;
}

/* Interactive Calculator / Solution Estimator Section */
.estimator-section {
  background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(21, 28, 46, 0.6) 100%);
  border-y: 1px solid var(--border-color);
}

.estimator-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.custom-checkbox {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  transition: var(--transition-fast);
}

.custom-checkbox:hover {
  border-color: var(--accent-cyan);
}

.custom-checkbox input[type="checkbox"] {
  accent-color: var(--primary-red);
  width: 18px;
  height: 18px;
}

.range-slider {
  width: 100%;
  accent-color: var(--primary-red);
}

.slider-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  float: right;
}

.estimator-summary {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.summary-details h4 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.summary-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.summary-item span:last-child {
  color: var(--text-primary);
  font-weight: 600;
}

/* Why BWD Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition-normal);
}

.feature-box:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
}

.feature-box h4 {
  font-size: 1.1rem;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.feature-box p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.info-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(225, 29, 72, 0.1);
  color: var(--primary-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  border: 1px solid rgba(225, 29, 72, 0.2);
}

.info-text h4 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.info-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: var(--transition-fast);
  margin-top: 0.4rem;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary-red);
  box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.footer {
  background: #070a12;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 1rem;
  max-width: 320px;
}

.footer-column h4 {
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Floating WhatsApp Button */
.floating-wa {
  position: fixed;
  bottom: 25px;
  right: 25px;
  z-index: 999;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  transition: var(--transition-normal);
}

.floating-wa:hover {
  transform: scale(1.1);
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .partners-grid, .solutions-grid, .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .estimator-box {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-container {
    height: 70px;
  }
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-dark);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-150%);
    transition: var(--transition-normal);
  }
  .nav-links.active {
    transform: translateY(0);
  }
  .mobile-toggle {
    display: block;
  }
  .hero {
    padding: 120px 0 60px;
  }
  .hero-content h1 {
    font-size: 2.25rem;
  }
  .partners-grid, .solutions-grid, .features-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .checkbox-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}