/* ==========================================================================
   Floor Up Studio - Master Stylesheet
   Modern Glassmorphism, Responsive Design System & Dark/Light Theme Support
   ========================================================================== */

:root {
  /* Color Palette - Dark Mode (Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --bg-card: rgba(31, 41, 55, 0.65);
  --bg-glass: rgba(17, 24, 39, 0.75);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-highlight: rgba(99, 102, 241, 0.4);

  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  /* Accent Colors */
  --slack-purple: #4A154B;
  --slack-purple-light: #611f69;
  --slack-green: #2EB67D;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);

  --accent-spark: #ec4899;
  --accent-spark-glow: rgba(236, 72, 153, 0.35);
  --accent-ticket: #3b82f6;
  --accent-ticket-glow: rgba(59, 130, 246, 0.35);
  --accent-amber: #f59e0b;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px var(--primary-glow);

  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.5);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 25px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
}

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

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

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }

.gradient-text {
  background: linear-gradient(135deg, #818cf8 0%, #c084fc 50%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-spark {
  background: linear-gradient(135deg, #f43f5e 0%, #ec4899 50%, #d946ef 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-ticket {
  background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 50%, #10b981 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Background Effects */
.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.glow-purple {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, rgba(0, 0, 0, 0) 70%);
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
}

.glow-pink {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.3) 0%, rgba(0, 0, 0, 0) 70%);
}

.glow-blue {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, rgba(0, 0, 0, 0) 70%);
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 900px;
}

section {
  position: relative;
  padding: 5rem 0;
}

/* Header Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--slack-purple), var(--primary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  box-shadow: 0 4px 12px rgba(74, 21, 75, 0.4);
}

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

.nav-link {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.theme-toggle:hover {
  background: var(--border-color);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--primary-glow);
  color: #ffffff;
}

.btn-slack {
  background: var(--slack-purple);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(74, 21, 75, 0.4);
}

.btn-slack:hover {
  background: var(--slack-purple-light);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-spark {
  background: linear-gradient(135deg, #f43f5e, #ec4899);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--accent-spark-glow);
}

.btn-spark:hover {
  transform: translateY(-2px);
  color: #ffffff;
  box-shadow: 0 8px 30px var(--accent-spark-glow);
}

.btn-ticket {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--accent-ticket-glow);
}

.btn-ticket:hover {
  transform: translateY(-2px);
  color: #ffffff;
  box-shadow: 0 8px 30px var(--accent-ticket-glow);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: var(--bg-tertiary);
  color: var(--primary);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: var(--radius-md);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge-spark {
  background: rgba(236, 72, 153, 0.15);
  color: var(--accent-spark);
  border-color: rgba(236, 72, 153, 0.3);
}

.badge-ticket {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-ticket);
  border-color: rgba(59, 130, 246, 0.3);
}

.badge-dev {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border-color: rgba(245, 158, 11, 0.3);
}

/* Cards & Glassmorphism */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Hero Section */
.hero {
  padding: 10rem 0 5rem;
  text-align: center;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 760px;
  margin: 1.5rem auto 2.5rem;
  font-weight: 500;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* App Showcase Section */
.section-title {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-title p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-top: 0.75rem;
}

.app-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.app-card-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.app-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.icon-spark {
  background: linear-gradient(135deg, #f43f5e, #ec4899);
  color: #fff;
}

.icon-ticket {
  background: linear-gradient(135deg, #1e1e2e, #3b82f6);
  color: #fff;
}

.app-features-list {
  list-style: none;
  margin: 1.5rem 0 2rem;
}

.app-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.app-features-list li svg {
  color: var(--slack-green);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

/* Product Feature Highlights */
.feature-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
}

.feature-box:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

/* Modal / Card UI Visual Previews */
.preview-window {
  background: #1e1e2e;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-top: 2rem;
}

.preview-header {
  background: #181825;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.preview-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #f38ba8; }
.dot-yellow { background: #f9e2af; }
.dot-green { background: #a6e3a1; }

.preview-title {
  margin-left: 0.5rem;
  font-size: 0.85rem;
  color: #a6adc8;
  font-family: var(--font-mono);
}

.preview-body {
  padding: 1.5rem;
  font-family: var(--font-family);
  color: #cdd6f4;
}

/* Slack Message UI Mockup */
.slack-msg {
  background: #181825;
  border-left: 4px solid var(--slack-purple);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.slack-msg-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.slack-avatar {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: var(--slack-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
}

.slack-bot-name {
  font-weight: 700;
  color: #f5e0dc;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.slack-bot-tag {
  background: #45475a;
  color: #bac2de;
  font-size: 0.65rem;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  text-transform: uppercase;
}

.slack-time {
  font-size: 0.75rem;
  color: #6c7086;
}

/* Legal Documents / Privacy & Terms Layout */
.legal-wrapper {
  padding: 8rem 0 5rem;
}

.legal-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2rem;
  margin-bottom: 3rem;
}

.legal-meta {
  display: flex;
  gap: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
}

.legal-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
  align-items: start;
}

.legal-toc {
  position: sticky;
  top: 100px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.legal-toc h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.legal-toc-list {
  list-style: none;
}

.legal-toc-list li {
  margin-bottom: 0.6rem;
}

.legal-toc-list a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: block;
  padding: 0.3rem 0;
  transition: var(--transition);
}

.legal-toc-list a:hover {
  color: var(--primary);
  padding-left: 0.3rem;
}

.legal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
}

.legal-content h2 {
  font-size: 1.6rem;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  font-size: 1.25rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-primary);
}

.legal-content p {
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  line-height: 1.7;
}

.legal-content ul, .legal-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--text-secondary);
}

.legal-content li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.legal-box {
  background: var(--bg-tertiary);
  border-left: 4px solid var(--primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
}

.legal-box p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-primary);
}

/* FAQ Accordion */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--border-highlight);
}

.faq-question {
  padding: 1.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-primary);
  user-select: none;
}

.faq-question svg {
  transition: var(--transition);
  color: var(--primary);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding: 0 1.5rem;
  color: var(--text-secondary);
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding-bottom: 1.5rem;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  margin-top: 6rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 1rem;
  max-width: 320px;
  font-size: 0.95rem;
}

.footer-heading {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Mobile Responsive Adjustments */
@media (max-width: 992px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .legal-toc {
    display: none;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none; /* Mobile menu can be toggled */
  }

  .hero {
    padding: 7rem 0 3rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}