/* ==========================================================================
   Ventar — Design System
   Aesthetic: True Airy Minimalism, Cloudy Apple Palette, Spacious Breathing Room
   NO Badges/Pills, NO Emojis, Pure Craft & Typography
   ========================================================================== */

:root {
  /* Ethereal Cloudy Atmosphere */
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f4f8;
  --bg-card: rgba(255, 255, 255, 0.48);
  --bg-card-hover: rgba(255, 255, 255, 0.72);
  --bg-card-solid: #ffffff;
  
  /* Apple Neutral Typographic Spectrum */
  --text-main: #111418;
  --text-secondary: #576574;
  --text-muted: #8392a5;
  --text-faint: #a6b5c7;

  /* Refined Accent & Horizon Blues */
  --accent-primary: #0071e3;
  --accent-hover: #0077ed;
  --accent-soft: rgba(0, 113, 227, 0.06);
  --accent-glow: rgba(0, 113, 227, 0.16);

  /* Delicate Glass Borders & Atmospheric Shadows */
  --glass-border: rgba(255, 255, 255, 0.85);
  --glass-border-subtle: rgba(18, 38, 63, 0.05);
  --glass-shadow: 0 30px 60px -20px rgba(24, 48, 77, 0.04), 0 2px 8px rgba(0, 0, 0, 0.02);
  --glass-shadow-hover: 0 36px 70px -20px rgba(24, 48, 77, 0.08), 0 4px 12px rgba(0, 0, 0, 0.03);
  --glass-blur: blur(28px);

  /* Radii & Timing */
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --radius-full: 9999px;

  --ease-apple: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s var(--ease-apple);
  --transition-smooth: 0.4s var(--ease-apple);
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Plus Jakarta Sans", "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background: 
    radial-gradient(ellipse 90% 60% at 50% -15%, rgba(220, 233, 248, 0.65) 0%, transparent 65%),
    radial-gradient(ellipse 70% 50% at 85% 35%, rgba(230, 238, 248, 0.45) 0%, transparent 70%),
    radial-gradient(ellipse 80% 60% at 15% 75%, rgba(225, 235, 246, 0.4) 0%, transparent 65%),
    var(--bg-primary);
}

/* Background Wind Particles Canvas (Delicate, Soft) */
.wind-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.9;
}

/* Interactive Cursor Follower */
.cursor-trail {
  position: fixed;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 999;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 113, 227, 0.14) 0%, rgba(0, 113, 227, 0) 70%);
  border: 1px solid rgba(0, 113, 227, 0.2);
  transition: width 0.3s ease, height 0.3s ease, background 0.3s ease, border-color 0.3s ease;
  will-change: left, top;
}

.cursor-trail.active {
  width: 32px;
  height: 32px;
  background: radial-gradient(circle, rgba(0, 113, 227, 0.22) 0%, rgba(0, 113, 227, 0) 75%);
  border-color: rgba(0, 113, 227, 0.35);
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(248, 250, 252, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border-subtle);
  transition: background 0.25s var(--ease-apple), border-color 0.25s var(--ease-apple), box-shadow 0.25s var(--ease-apple);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.88);
  border-bottom-color: rgba(18, 38, 63, 0.08);
  box-shadow: 0 4px 20px -6px rgba(18, 38, 63, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 32px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(145deg, #181b1e 0%, #2e343b 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.logo-mark svg {
  width: 18px;
  height: 18px;
}

.brand-logo:hover .logo-mark {
  transform: scale(1.05);
}

.brand-text {
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-main);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: 6px 0;
  position: relative;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1.5px;
  background: var(--text-main);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ==========================================================================
   Globe Language Dropdown (Apple Minimalist, Frosted Glass)
   ========================================================================== */
.lang-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.lang-globe-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 10px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(18, 38, 63, 0.08);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.lang-globe-btn:hover,
.lang-globe-btn[aria-expanded="true"] {
  color: var(--text-main);
  background: #ffffff;
  border-color: rgba(18, 38, 63, 0.16);
  box-shadow: 0 2px 8px rgba(18, 38, 63, 0.06);
}

.lang-globe-icon {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.lang-globe-btn:hover .lang-globe-icon {
  transform: rotate(15deg);
}

.lang-code-indicator {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
}

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  padding: 6px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(18, 38, 63, 0.08);
  box-shadow: 0 16px 36px -8px rgba(18, 38, 63, 0.14), 0 2px 8px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(-4px) scale(0.97);
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.lang-menu.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.lang-menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 8px 12px;
  border-radius: 9px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.lang-menu-item:hover {
  background: rgba(18, 38, 63, 0.05);
  color: var(--text-main);
}

.lang-menu-item.active {
  background: rgba(0, 113, 227, 0.08);
  color: var(--accent-primary);
  font-weight: 600;
}

.lang-item-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.lang-menu-item.active .lang-item-code {
  color: var(--accent-primary);
}

.btn-header {
  padding: 8px 18px;
  font-size: 0.88rem;
}

/* ==========================================================================
   Hero Centerpiece Shimmer Button (Strictly 0 Neon, Pure Silvery Traveling Beam)
   ========================================================================== */
@keyframes heroBorderBeam {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.btn-shimmer-hero {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  border-radius: var(--radius-full);
  overflow: hidden;
  background: #111418;
  border: 1px solid rgba(0, 0, 0, 0.2);
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn-shimmer-hero::before {
  content: '';
  position: absolute;
  width: 460px;
  height: 460px;
  top: 50%;
  left: 50%;
  margin-top: -230px;
  margin-left: -230px;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    transparent 45deg,
    rgba(255, 255, 255, 0.45) 70deg,
    #ffffff 90deg,
    rgba(200, 225, 255, 0.7) 100deg,
    transparent 125deg,
    transparent 225deg,
    rgba(255, 255, 255, 0.45) 250deg,
    #ffffff 270deg,
    rgba(200, 225, 255, 0.7) 280deg,
    transparent 305deg,
    transparent 360deg
  );
  opacity: 0;
  transition: opacity 0.25s var(--ease-apple);
  animation: heroBorderBeam 2.2s linear infinite;
  pointer-events: none;
  will-change: transform;
}

.btn-shimmer-hero:hover::before {
  opacity: 1;
}

.btn-shimmer-hero:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 0, 0, 0.35);
  box-shadow: 0 10px 28px -4px rgba(18, 38, 63, 0.24);
}

.btn-shimmer-hero-inner {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 34px;
  border-radius: var(--radius-full);
  background: linear-gradient(180deg, #1d2229 0%, #111418 100%);
  color: #ffffff;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 600;
  transition: background var(--transition-fast);
  white-space: nowrap;
}

.btn-shimmer-hero:hover .btn-shimmer-hero-inner {
  background: linear-gradient(180deg, #262c36 0%, #161a20 100%);
}

.btn-shimmer-hero .btn-arrow {
  transition: transform var(--transition-fast);
}

.btn-shimmer-hero:hover .btn-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-smooth);
  user-select: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--text-main);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.btn-primary:hover {
  background: #23272c;
  transform: translateY(-1.5px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.12);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.85);
  color: var(--text-main);
  border-color: rgba(0, 0, 0, 0.07);
}

.btn-secondary:hover {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.14);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-main);
  border-color: rgba(0, 0, 0, 0.08);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(0, 0, 0, 0.16);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 16px 34px;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.86rem;
}

.btn-block {
  width: 100%;
}

.btn-arrow {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(3px);
}

/* ==========================================================================
   Hero Section (Airy, Spacious, Zero Badges)
   ========================================================================== */
.hero-section {
  padding: 100px 0 110px;
  text-align: center;
  position: relative;
}

.hero-container {
  max-width: 980px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.8rem, 6.8vw, 5.2rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--text-main);
  margin-bottom: 28px;
}

.gradient-text {
  background: linear-gradient(135deg, #181b1e 20%, #475569 65%, #0071e3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.1vw, 1.35rem);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 740px;
  margin-bottom: 44px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 70px;
}

.hero-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  width: 100%;
}

.metric-card {
  padding: 24px 20px;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: transform var(--transition-smooth), background var(--transition-smooth);
}

.metric-card:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.7);
}

.metric-value {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.metric-label {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.35;
  text-align: center;
}

/* ==========================================================================
   Section Headers & Glass Cards
   ========================================================================== */
.section {
  padding: 120px 0;
  position: relative;
}

.section-intro {
  margin-bottom: 64px;
}

.section-intro.text-center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: clamp(2.1rem, 4.2vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  color: var(--text-main);
  line-height: 1.15;
  margin-bottom: 18px;
}

.section-desc {
  font-size: 1.18rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.6;
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.glass-card:hover {
  background: var(--bg-card-hover);
  box-shadow: var(--glass-shadow-hover);
}

/* ==========================================================================
   Interactive Wind Line & Why Us Section
   ========================================================================== */
.interactive-guide-wrapper {
  position: relative;
  padding-left: 40px;
}

.interactive-line-track {
  position: absolute;
  top: 12px;
  bottom: 24px;
  left: 10px;
  width: 2px;
  background: rgba(18, 38, 63, 0.06);
  border-radius: 2px;
}

.line-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, #0071e3, #4f7899);
  border-radius: 2px;
  transition: height 0.15s ease-out;
}

.line-dot-head {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #0071e3;
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.2);
  transition: top 0.15s ease-out;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.guide-card {
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
}

.guide-card.featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.72) 0%, rgba(240, 246, 255, 0.5) 100%);
  border-color: rgba(0, 113, 227, 0.18);
}

.card-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
  margin-bottom: 24px;
}

.card-title {
  font-size: 1.48rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.25;
}

.card-text {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.62;
  margin-bottom: 24px;
}

.card-highlight {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 10px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.highlight-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #0071e3;
  margin-top: 8px;
  flex-shrink: 0;
}

.tech-spec {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 20px;
}

.spec-tag {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-secondary);
}

/* ==========================================================================
   Scenario Tabs (Clean, Airy, Zero Emojis)
   ========================================================================== */
.scenario-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 28px;
}

.scenario-tab {
  font-family: inherit;
  font-size: 0.94rem;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.scenario-tab:hover {
  background: #ffffff;
  color: var(--text-main);
  transform: translateY(-1px);
}

.scenario-tab.active {
  background: var(--text-main);
  color: #ffffff;
  border-color: var(--text-main);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.scenario-content-panel {
  padding: 48px;
  max-width: 920px;
  margin: 0 auto;
}

.scenario-heading {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  color: var(--text-main);
}

.scenario-p {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 34px;
}

.scenario-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 36px;
}

.step-item {
  padding: 22px 20px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.step-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: 10px;
  display: block;
}

.step-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.step-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   Honest Manifesto & Portfolio Showcase
   ========================================================================== */
.manifesto-card {
  padding: 44px;
  margin-bottom: 48px;
  border-left: 3px solid #0071e3;
}

.manifesto-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
}

.manifesto-body p {
  font-size: 1.06rem;
  color: var(--text-secondary);
  line-height: 1.68;
  margin-bottom: 18px;
}

.quote-italic {
  display: block;
  font-style: italic;
  padding: 12px 18px;
  margin: 12px 0;
  border-left: 2px solid rgba(0, 0, 0, 0.12);
  background: rgba(0, 0, 0, 0.015);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.manifesto-footer-note {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-main);
}

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

.showcase-card {
  display: flex;
  flex-direction: column;
}

.mockup-window {
  background: #ffffff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.window-bar {
  display: flex;
  align-items: center;
  padding: 11px 18px;
  background: #f3f5f8;
  gap: 6px;
}

.win-btn {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #d1d5db;
}

.win-url {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  color: #7b8b9a;
  background: #ffffff;
  padding: 3px 12px;
  border-radius: 4px;
  margin-left: 8px;
  flex-grow: 1;
}

.mockup-screen {
  padding: 34px 26px;
  background: #fafbfc;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.screen-meta-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #64748b;
  margin-bottom: 8px;
}

.screen-h {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: #14171a;
  line-height: 1.25;
}

.screen-p {
  font-size: 0.88rem;
  color: #64748b;
  margin-bottom: 16px;
}

.screen-btn {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: #14171a;
  color: #ffffff;
  width: fit-content;
}

.screen-btn-accent {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: #0071e3;
  color: #ffffff;
  width: fit-content;
}

.screen-stats {
  display: flex;
  gap: 20px;
  font-size: 0.78rem;
  color: #64748b;
  padding-top: 16px;
  border-top: 1px dashed rgba(0, 0, 0, 0.06);
}

.screen-stats strong {
  color: #16a34a;
}

.showcase-info {
  padding: 28px 26px;
}

.showcase-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.showcase-category {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.showcase-status {
  font-size: 0.82rem;
  font-weight: 600;
  color: #16a34a;
}

.showcase-info h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.showcase-info p {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   Project Calculator
   ========================================================================== */
.calculator-layout {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 40px;
  padding: 48px;
}

.calc-group {
  margin-bottom: 30px;
}

.calc-label {
  display: block;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
}

.calc-pills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.calc-pill {
  font-family: inherit;
  font-size: 0.94rem;
  font-weight: 500;
  padding: 13px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.calc-pill:hover {
  background: #ffffff;
  color: var(--text-main);
  border-color: rgba(0, 0, 0, 0.12);
}

.calc-pill.active {
  background: #ffffff;
  color: var(--text-main);
  border-color: var(--text-main);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
}

.calc-checkbox-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.custom-checkbox {
  display: flex;
  align-items: center;
  position: relative;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(0, 0, 0, 0.04);
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.custom-checkbox:hover {
  background: rgba(255, 255, 255, 0.8);
}

.custom-checkbox input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.checkmark {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  border: 1.5px solid #94a3b8;
  margin-right: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  background: #ffffff;
}

.custom-checkbox input:checked ~ .checkmark {
  background: #0071e3;
  border-color: #0071e3;
}

.custom-checkbox input:checked ~ .checkmark::after {
  content: '';
  width: 5px;
  height: 9px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-bottom: 2px;
}

.check-title {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-main);
}

/* Summary Box */
.calc-summary {
  display: flex;
  flex-direction: column;
}

.summary-box {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.03);
}

.summary-title {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  font-size: 0.94rem;
}

.summary-label {
  color: var(--text-secondary);
}

.summary-val {
  font-weight: 600;
  color: var(--text-main);
}

.summary-val.price {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--accent-primary);
}

.summary-divider {
  margin: 18px 0;
}

.summary-note {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 24px;
}

/* ==========================================================================
   Contact Section & Lead Form (Modern Web Guidance Compliant)
   ========================================================================== */
.contact-card {
  padding: 60px;
}

.contact-content {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
}

.contact-title {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 18px;
}

.contact-desc {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.62;
  margin-bottom: 36px;
}

.contact-highlights {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-bottom: 40px;
}

.c-point {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.c-point-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.c-point strong {
  display: block;
  font-size: 1.02rem;
  color: var(--text-main);
  margin-bottom: 2px;
}

.c-point p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.direct-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.messenger-buttons {
  display: flex;
  gap: 12px;
}

.messenger-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.08);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.messenger-pill:hover {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.18);
  transform: translateY(-1px);
}

.messenger-pill.tg {
  color: #229ed9;
}

/* Contact Form Wrapper */
.contact-form-wrapper {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 38px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.02);
}

.form-header {
  margin-bottom: 24px;
}

.form-header h3 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

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

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.field-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.field-hint {
  font-size: 0.8rem;
  color: #dc2626;
  display: none;
}

.form-input,
.form-select,
.form-textarea {
  font-family: inherit;
  font-size: 0.96rem;
  padding: 13px 16px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(0, 0, 0, 0.12);
  background: #ffffff;
  color: var(--text-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: #0071e3;
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

/* Modern Validation Pseudo-classes (:user-valid and :user-invalid) */
.form-input:user-invalid,
.form-input.user-invalid-fallback {
  border-color: #dc2626;
  background-color: #fff8f8;
}

.form-input:user-invalid + .field-hint,
.form-input.user-invalid-fallback + .field-hint {
  display: block;
}

.form-input:user-valid {
  border-color: #16a34a;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.btn-submit {
  margin-top: 8px;
  padding: 15px 24px;
}

.form-disclaimer {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 14px;
  line-height: 1.45;
}

/* Success Box */
.form-success-box,
.dialog-success-view {
  text-align: center;
  padding: 36px 20px;
}

.success-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #16a34a;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.form-success-box h3,
.dialog-success-view h3 {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-success-box p,
.dialog-success-view p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 22px;
}

/* ==========================================================================
   Modal Dialog (<dialog closedby="any"> + Modern Web Top-Layer Transitions)
   ========================================================================== */
dialog.consultation-dialog {
  border: none;
  background: transparent;
  padding: 0;
  max-width: 500px;
  width: 90vw;
  margin: auto;
  border-radius: var(--radius-xl);
  box-shadow: 0 30px 70px -15px rgba(0, 0, 0, 0.22);
  
  opacity: 0;
  transform: scale(0.94) translateY(12px);
  transition: 
    opacity 0.25s var(--ease-apple),
    transform 0.25s var(--ease-apple),
    overlay 0.25s var(--ease-apple) allow-discrete,
    display 0.25s var(--ease-apple) allow-discrete;
}

dialog.consultation-dialog[open] {
  opacity: 1;
  transform: scale(1) translateY(0);
}

@starting-style {
  dialog.consultation-dialog[open] {
    opacity: 0;
    transform: scale(0.94) translateY(12px);
  }
}

dialog.consultation-dialog::backdrop {
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: 
    opacity 0.25s var(--ease-apple),
    overlay 0.25s var(--ease-apple) allow-discrete,
    display 0.25s var(--ease-apple) allow-discrete;
}

dialog.consultation-dialog[open]::backdrop {
  opacity: 1;
}

@starting-style {
  dialog.consultation-dialog[open]::backdrop {
    opacity: 0;
  }
}

.dialog-content {
  padding: 40px 36px;
  background: #ffffff;
  border-radius: var(--radius-xl);
  position: relative;
}

.dialog-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.05);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background var(--transition-fast);
}

.dialog-close-btn:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-main);
}

.dialog-title {
  font-size: 1.48rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 8px;
  color: var(--text-main);
  line-height: 1.25;
}

.dialog-subtitle {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}

.modal-time-guarantee {
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 14px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  padding: 70px 0 44px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: var(--glass-blur);
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.footer-col-main {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-tagline {
  font-size: 0.98rem;
  color: var(--text-secondary);
  max-width: 500px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.footer-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--text-main);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.response-pledge {
  font-weight: 500;
  color: var(--text-secondary);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 992px) {
  .hero-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
  
  .showcase-grid {
    grid-template-columns: 1fr;
  }

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

  .calculator-layout {
    grid-template-columns: 1fr;
    padding: 32px;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-card {
    padding: 36px 26px;
  }
}

@media (max-width: 768px) {
  .site-header {
    border-bottom: 1px solid rgba(18, 38, 63, 0.08);
  }

  .header-inner {
    height: 60px;
    padding: 0 20px;
  }

  .nav-links {
    display: none;
  }

  .btn-shimmer-hero-inner {
    padding: 13px 26px;
    font-size: 0.95rem;
  }

  .hero-section {
    padding: 60px 0 60px;
  }

  .interactive-guide-wrapper {
    padding-left: 0;
  }

  .interactive-line-track {
    display: none;
  }

  .calc-pills {
    grid-template-columns: 1fr;
  }

  .cursor-trail {
    display: none;
  }
}

@media (max-width: 520px) {
  .header-actions {
    gap: 8px;
  }

  .btn-header {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .lang-globe-btn {
    height: 32px;
    padding: 0 8px;
    font-size: 0.74rem;
  }

  .lang-globe-icon {
    width: 15px;
    height: 15px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .wind-canvas, .cursor-trail {
    display: none !important;
  }
}