/* ==========================================================================
   Brands Factory & Ali Mohmed - Ultra High-Performance 2026 Engine
   100/100 Speed, Native CSS, Hardware-Accelerated 60FPS Animations
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800;900&display=swap');

:root {
  --primary-purple: #8B5CF6;
  --primary-purple-dark: #7C3AED;
  --primary-purple-glow: rgba(139, 92, 246, 0.35);
  --cyan-accent: #06B6D4;
  --cyan-glow: rgba(6, 182, 212, 0.3);
  --emerald-accent: #10B981;
  --emerald-glow: rgba(16, 185, 129, 0.25);
  --gold-accent: #F59E0B;
  --bg-dark: #070913;
  --bg-card: rgba(13, 17, 34, 0.85);
  --bg-card-hover: rgba(20, 26, 52, 0.95);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(139, 92, 246, 0.4);
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Cairo', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  overflow-x: hidden;
  letter-spacing: 0 !important;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.7;
  letter-spacing: 0 !important;
  background-color: var(--bg-dark);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  letter-spacing: 0 !important;
  word-spacing: 0 !important;
  line-height: 1.35 !important;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

[dir="ltr"] {
  font-family: 'Outfit', system-ui, sans-serif;
}

/* Super Fast Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: #070913;
}
::-webkit-scrollbar-thumb {
  background: #232B47;
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #7C3AED;
}

/* Ambient Radial Glow Background */
.bg-mesh-glow {
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 50% 60%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 90%, rgba(16, 185, 129, 0.08) 0%, transparent 40%);
  background-attachment: fixed;
}

.bg-grid-pattern {
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
}

/* ==========================================
   Smooth Hardware-Accelerated Keyframe Animations
   ========================================== */
@keyframes floatSlow {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.04); }
}

@keyframes shimmerEffect {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-float {
  animation: floatSlow 5s ease-in-out infinite;
  will-change: transform;
}

.animate-pulse-glow {
  animation: pulseGlow 4s ease-in-out infinite;
  will-change: opacity, transform;
}

/* Luxury Glassmorphism Cards */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  will-change: transform;
}

.glass-panel:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  box-shadow: 0 20px 40px -10px rgba(124, 58, 237, 0.25);
  transform: translateY(-4px);
}

.glass-nav {
  background: rgba(7, 9, 19, 0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* Gradients */
.text-gradient-purple {
  background: linear-gradient(135deg, #D8B4FE 0%, #A855F7 50%, #60A5FA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  padding-bottom: 4px;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #38BDF8 0%, #06B6D4 50%, #34D399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.glow-btn-purple {
  background: linear-gradient(135deg, #7C3AED 0%, #9333EA 100%);
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, background 0.25s ease;
  will-change: transform;
}

.glow-btn-purple:hover {
  background: linear-gradient(135deg, #8B5CF6 0%, #A855F7 100%);
  box-shadow: 0 8px 30px rgba(147, 51, 234, 0.65);
  transform: translateY(-2px) scale(1.02);
}

.glow-badge {
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.35);
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.15);
}

/* Range Slider */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 4px;
  background: #1A213D;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #8B5CF6;
  border: 3px solid #FFFFFF;
  cursor: pointer;
  box-shadow: 0 0 12px #8B5CF6;
  transition: transform 0.15s ease, background 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: #A855F7;
}

/* Tabs */
.tab-btn.active {
  background: linear-gradient(135deg, #7C3AED, #6366F1);
  color: #FFFFFF;
  border-color: #A855F7;
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.35);
}

/* Modal Smooth Fade */
#caseStudyModal {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s ease;
}

#caseStudyModal.active {
  opacity: 1;
  visibility: visible;
}

#caseStudyModal .modal-dialog-box {
  transform: scale(0.96) translateY(12px);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

#caseStudyModal.active .modal-dialog-box {
  transform: scale(1) translateY(0);
}

/* Modal Responsive Mobile Safety */
@media (max-width: 640px) {
  #caseStudyModal .modal-dialog-box {
    max-height: 94vh;
    border-radius: 20px;
  }
}

/* Founder Glow Frame */
.founder-image-wrapper {
  position: relative;
}

.founder-image-wrapper::before {
  content: '';
  position: absolute;
  inset: -4px;
  background: linear-gradient(135deg, #7C3AED, #06B6D4, #10B981);
  border-radius: 26px;
  z-index: 0;
  opacity: 0.6;
  filter: blur(10px);
  transition: opacity 0.3s ease, filter 0.3s ease;
}

.founder-image-wrapper:hover::before {
  opacity: 0.95;
  filter: blur(16px);
}

/* ==========================================
   Luxury Custom UI Select & Dropdown Engine
   (Completely eliminates primitive phone dialogs)
   ========================================== */
.custom-select-wrapper {
  position: relative;
  user-select: none;
}

.custom-select-trigger {
  width: 100%;
  background: rgba(13, 17, 34, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 1rem;
  padding: 0.85rem 1rem;
  color: #FFFFFF;
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.2s ease;
}

.custom-select-trigger:hover,
.custom-select-wrapper.open .custom-select-trigger {
  border-color: #8B5CF6;
  background: rgba(20, 26, 52, 0.98);
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.25);
}

.custom-select-wrapper.open .custom-select-trigger i.chevron-icon {
  transform: rotate(180deg);
}

.custom-select-options {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 50;
  background: #0D1122;
  border: 1px solid rgba(139, 92, 246, 0.4);
  border-radius: 1rem;
  padding: 0.35rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.85), 0 0 20px rgba(139, 92, 246, 0.2);
  display: none;
  max-height: 260px;
  overflow-y: auto;
}

.custom-select-wrapper.open .custom-select-options {
  display: block;
  animation: dropdownSlideIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes dropdownSlideIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.custom-option {
  padding: 0.75rem 0.9rem;
  border-radius: 0.75rem;
  color: #CBD5E1;
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.15s ease;
}

.custom-option:hover {
  background: rgba(139, 92, 246, 0.2);
  color: #FFFFFF;
}

.custom-option.selected {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.35), rgba(6, 182, 212, 0.2));
  border: 1px solid rgba(139, 92, 246, 0.4);
  color: #FFFFFF;
}

/* Custom Interactive Chips for Calculator Industry */
.calc-chip {
  padding: 0.75rem 1rem;
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #94A3B8;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
  text-align: center;
}

.calc-chip:hover {
  border-color: rgba(139, 92, 246, 0.5);
  color: #FFFFFF;
}

.calc-chip.active {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.4), rgba(6, 182, 212, 0.2));
  border-color: #8B5CF6;
  color: #FFFFFF;
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
}