/* ==========================================================================
   iocode.it - Minimalist Frappe-Inspired Stylesheet
   Pure White Background, Deep Black Typography, Clean Technical Aesthetics
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --bg-primary: #ffffff;
  --bg-secondary: #fafafa;
  --bg-subtle: #f4f4f5;
  --text-primary: #09090b;
  --text-muted: #52525b;
  --text-subtle: #71717a;
  --border-color: #e4e4e7;
  --border-hover: #a1a1aa;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  background-color: #ffffff;
  color: #09090b;
}

.font-mono-code {
  font-family: var(--font-mono);
}

/* Subtle Grid Background - Frappe / Tech style */
.bg-grid-pattern {
  background-size: 32px 32px;
  background-image: 
    linear-gradient(to right, rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
}

/* Crisp Frappe-style Borders and Cards */
/* Crisp Frappe-style Borders and Cards with Fluid Hover Transitions */
.frappe-card {
  background-color: #ffffff;
  border: 1px solid #e4e4e7;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, box-shadow, border-color;
  position: relative;
}

.frappe-card:hover {
  border-color: #09090b;
  transform: translateY(-5px);
  box-shadow: 0 16px 32px -8px rgba(0, 0, 0, 0.08), 0 4px 12px -2px rgba(0, 0, 0, 0.03);
}

.frappe-card .mod-cta-arrow {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.frappe-card:hover .mod-cta-arrow {
  transform: translateX(4px);
}

.mod-ai-pill {
  transition: all 0.25s ease-in-out;
}

.frappe-card:hover .mod-ai-pill {
  border-color: #18181b;
  background-color: #ffffff;
}

/* Minimalist Button Styles */
.btn-primary {
  background-color: #09090b;
  color: #ffffff;
  border: 1px solid #09090b;
  transition: all 0.15s ease-in-out;
}

.btn-primary:hover {
  background-color: #27272a;
  border-color: #27272a;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #ffffff;
  color: #09090b;
  border: 1px solid #e4e4e7;
  transition: all 0.15s ease-in-out;
}

.btn-secondary:hover {
  background-color: #f4f4f5;
  border-color: #d4d4d8;
  color: #000000;
}

/* Monospace Badge */
.frappe-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background-color: #f4f4f5;
  border: 1px solid #e4e4e7;
  color: #27272a;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-weight: 500;
}

/* Code Preview Box */
.terminal-window {
  background: #ffffff;
  border: 1px solid #18181b;
  border-radius: 0.5rem;
  box-shadow: 4px 4px 0px #18181b;
}

/* FAQ Accordion Transitions */
.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), opacity 0.2s ease-in-out;
  opacity: 0;
}

.faq-content.open {
  max-height: 500px;
  transition: max-height 0.4s ease-in-out, opacity 0.3s ease-in-out;
  opacity: 1;
}

.faq-icon {
  transition: transform 0.2s ease-in-out;
}

.faq-icon.rotated {
  transform: rotate(45deg);
}

/* Focus styles for accessibility */
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: #09090b !important;
  box-shadow: 0 0 0 2px rgba(9, 9, 11, 0.1);
}

/* Touch Optimization for Mobile */
a, button, [role="button"] {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* Flow Step Node Styles */
.flow-step-node {
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.flow-step-node:hover {
  transform: translateY(-2px);
  border-color: #09090b;
}

.flow-step-node:active {
  transform: translateY(0);
}

/* Language Switcher Buttons */
.lang-toggle-btn {
  cursor: pointer;
  transition: all 0.15s ease-in-out;
}

.module-switcher-btn {
  cursor: pointer;
  transition: all 0.15s ease-in-out;
}

/* ==========================================================================
   Interactive Micro-Transitions & Visual Polish
   ========================================================================== */

/* Smooth Viewport Scroll Reveals */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }
.delay-600 { transition-delay: 0.6s; }

/* AI Indicator Badge with subtle breathing pulse */
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background-color: #09090b;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  border: 1px solid #27272a;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ai-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 9999px;
  background-color: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.4);
    opacity: 0.5;
  }
}

/* AI Interactive Simulator Tab Transitions */
.ai-tab-btn {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.ai-tab-btn.active {
  background-color: #09090b;
  color: #ffffff;
  border-color: #09090b;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.ai-tab-btn:not(.active):hover {
  background-color: #f4f4f5;
  border-color: #d4d4d8;
  color: #000000;
}

/* Typing / Cursor Animation for Terminal */
.ai-terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background-color: #10b981;
  margin-left: 2px;
  vertical-align: middle;
  animation: blink-cursor 1s infinite step-start;
}

@keyframes blink-cursor {
  50% { opacity: 0; }
}

/* Subtle Shimmer for AI Feature Cards */
.ai-card-glow {
  position: relative;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid #e4e4e7;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-card-glow:hover {
  border-color: #09090b;
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -6px rgba(0, 0, 0, 0.08), 0 0 0 1px #09090b;
}

/* Smooth Fade Transition for Tab Content */
.tab-pane {
  transition: opacity 0.25s ease-in-out, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.tab-pane.fade-enter {
  opacity: 0;
  transform: translateY(8px);
}

.tab-pane.fade-enter-active {
  opacity: 1;
  transform: translateY(0);
}

/* Interactive Flow Transitions for modulo.html */
.flow-step-node {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, box-shadow, border-color;
}

.flow-step-node:hover:not(.active-node) {
  border-color: #52525b;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.06);
}

.module-switcher-btn {
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.module-switcher-btn:hover:not(.bg-neutral-950) {
  border-color: #09090b;
  color: #000000;
  transform: translateY(-1px);
}

/* Flow Section Cross-fade on Switch */
.flow-content-fade {
  animation: flowFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes flowFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Inspector Card Pop/Fade */
.inspector-fade {
  animation: inspectorFade 0.28s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes inspectorFade {
  from {
    opacity: 0.35;
    transform: scale(0.995);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}