/**
 * Velto CMS - Front Theme CSS (default.css)
 * 프론트 테마 통합 스타일시트
 * Source: theme/velto/head.ejs, globals.css, index.ejs, views/
 */


/* ===== Velto CI v2 Color Tokens (2026 Design System) ===== */
:root {
  /* Accent Colors */
  --velto-accent: #D946EF;

  /* Status Colors (Soft Pastel) */
  --velto-success: #51CF66;
  --velto-danger: #FF6B6B;
  --velto-warning: #FCC419;
  --velto-info: #4DABF7;

  /* Fonts */
  --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* Dark Theme (Default) */
:root, [data-theme="dark"] {
  --velto-primary: #A78BFA;
  --velto-primary-hover: #7C3AED;
  --velto-secondary: #2DD4BF;

  --velto-bg: #0F0E17;
  --velto-surface: #1E1B2E;
  --velto-card-bg: linear-gradient(145deg, rgba(30, 27, 46, 0.7), rgba(15, 14, 23, 0.9));
  --velto-card-bg-solid: rgba(30, 27, 46, 0.7);
  --velto-glass-border: rgba(139, 92, 246, 0.15);

  --velto-text: #F3F4F6;
  --velto-text-secondary: #94A3B8;
  --velto-text-dim: #64748B;

  --velto-input-bg: #0F0E17;
  --velto-input-border: rgba(139, 92, 246, 0.15);
  --velto-border-hover: rgba(167, 139, 250, 0.4);

  --velto-grad-brand: linear-gradient(135deg, #A78BFA 0%, #2DD4BF 100%);
  --velto-grad-btn: linear-gradient(135deg, #7C3AED, #2DD4BF);
  --velto-shadow-glow: 0 0 20px rgba(124, 58, 237, 0.5);
  --velto-shadow-hover: 0 0 30px rgba(45, 212, 191, 0.5);
  --velto-title-glow: 0 0 30px rgba(167, 139, 250, 0.4);

  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Light Theme */
[data-theme="light"] {
  --velto-primary: #6366F1;
  --velto-primary-hover: #8B5CF6;
  --velto-secondary: #8B5CF6;

  --velto-bg: #FFFFFF;
  --velto-surface: #F5F3FF;
  --velto-card-bg: #FFFFFF;
  --velto-card-bg-solid: #FFFFFF;
  --velto-glass-border: #E2E8F0;

  --velto-text: #334155;
  --velto-text-secondary: #64748B;
  --velto-text-dim: #94A3B8;

  --velto-input-bg: #FFFFFF;
  --velto-input-border: #E2E8F0;
  --velto-border-hover: #C4B5FD;

  --velto-grad-brand: linear-gradient(135deg, #6366F1 0%, #D946EF 100%);
  --velto-grad-btn: linear-gradient(135deg, #8B5CF6, #6366F1);
  --velto-shadow-glow: 0 4px 15px rgba(139, 92, 246, 0.3);
  --velto-shadow-hover: 0 6px 20px rgba(139, 92, 246, 0.4);
  --velto-title-glow: none;

  --shadow-glass: 0 4px 20px rgba(0, 0, 0, 0.05);
}

/* Theme-aware Logo */
.logo-light { display: none; }
.logo-dark { display: inline-block; }
[data-theme="light"] .logo-light { display: inline-block; }
[data-theme="light"] .logo-dark:has(+ .logo-light) { display: none; }

/* Base Styles */
body {
  background-color: var(--velto-bg);
  color: var(--velto-text);
  font-family: var(--font-main);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Velto Signature Gradient Text */
.velto-gradient-text {
  background: var(--velto-grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Velto Button Gradient */
.velto-btn {
  background: var(--velto-grad-btn);
  transition: all 0.3s ease;
  display: inline-block;
  text-align: center;
  color: white;
  font-weight: bold;
  border-radius: 9999px;
  padding: 1rem 2rem;
}
.velto-btn:hover {
  box-shadow: var(--velto-shadow-hover);
  transform: translateY(-2px);
}

/* Velto Outline Button */
.velto-btn-outline {
  border: 1px solid var(--velto-border-hover);
  color: var(--velto-primary);
  transition: all 0.3s ease;
  display: inline-block;
  text-align: center;
  font-weight: bold;
  border-radius: 9999px;
  padding: 0.5rem 1.25rem;
}
.velto-btn-outline:hover {
  background: var(--velto-primary);
  color: var(--velto-bg);
}

/* Hero Background with Purple Tint */
.bg-velto-hero {
  background-image: linear-gradient(to bottom, rgba(26, 26, 31, 0.3), var(--velto-bg)),
                    url('https://images.unsplash.com/photo-1620641788421-7f1c33b74304?q=80&w=2070&auto=format&fit=crop');
  background-size: cover;
  background-position: center;
  background-blend-mode: overlay;
}

[data-theme="light"] .bg-velto-hero {
  background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.7), var(--velto-bg)),
                    url('https://images.unsplash.com/photo-1620641788421-7f1c33b74304?q=80&w=2070&auto=format&fit=crop');
}

/* Glassmorphism Card */
.glass-card {
  background: var(--velto-card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--velto-glass-border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Velto Input */
.velto-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--velto-input-bg);
  border: 1px solid var(--velto-input-border);
  border-radius: 0.5rem;
  color: var(--velto-text);
  outline: none;
  transition: border-color 0.3s, background-color 0.3s;
}
.velto-input:focus {
  border-color: var(--velto-primary);
}
.velto-input::placeholder {
  color: var(--velto-text-dim);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--velto-bg); }
::-webkit-scrollbar-thumb { background: var(--velto-surface); border-radius: 9999px; }
::-webkit-scrollbar-thumb:hover { background: var(--velto-primary); }

/* Line clamp */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Theme Toggle Button */
.theme-toggle {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background: transparent;
  border: none;
  color: var(--velto-text-dim);
}
.theme-toggle:hover {
  background: var(--velto-glass-border);
  color: var(--velto-text);
}
.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  transition: opacity 0.3s, transform 0.3s;
}
[data-theme="dark"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0deg); }
[data-theme="dark"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(-90deg); }
[data-theme="light"] .theme-toggle .icon-sun { opacity: 0; transform: rotate(90deg); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0deg); }

/* Card hover effects */
[data-theme="light"] .hover\:bg-white\/5:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* Text color overrides for light theme */
[data-theme="light"] .text-white {
  color: var(--velto-text);
}
[data-theme="light"] .text-velto-mint {
  color: var(--velto-text);
}
[data-theme="light"] .text-velto-muted {
  color: var(--velto-text-dim);
}

/* Background overrides for light theme */
[data-theme="light"] .bg-velto-night {
  background-color: var(--velto-bg);
}
[data-theme="light"] .bg-velto-ink {
  background-color: var(--velto-input-bg);
}
[data-theme="light"] .bg-velto-charcoal {
  background-color: var(--velto-surface);
}

/* Border overrides for light theme */
[data-theme="light"] .border-white\/5,
[data-theme="light"] .border-white\/10 {
  border-color: var(--velto-glass-border);
}

/* ===== LIGHT THEME: Index Page Components ===== */

[data-theme="light"] .hero-bg {
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 70% 80%, rgba(139, 92, 246, 0.06), transparent),
    linear-gradient(to bottom, var(--velto-bg), #EFF1F5);
}

[data-theme="light"] .hero-grid {
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
}

[data-theme="light"] .hero-orb-1 {
  background: rgba(99, 102, 241, 0.15);
}

[data-theme="light"] .hero-orb-2 {
  background: rgba(139, 92, 246, 0.08);
}

[data-theme="light"] .hero-badge {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(99, 102, 241, 0.2);
}

[data-theme="light"] .hero-btn-primary {
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.2);
}

[data-theme="light"] .hero-btn-secondary {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(0, 0, 0, 0.1);
  color: var(--velto-text);
}

/* Power Cards - Light */
[data-theme="light"] .power-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(248, 249, 251, 0.95));
  border-color: rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .power-card:hover {
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.08),
    0 0 40px rgba(99, 102, 241, 0.1);
}

[data-theme="light"] .power-card::before {
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(99, 102, 241, 0.1), transparent 60%);
}

[data-theme="light"] .power-card-icon {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.08));
  border-color: rgba(99, 102, 241, 0.2);
}

[data-theme="light"] .power-card:hover .power-card-icon {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(139, 92, 246, 0.15));
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.2);
}

/* Tech Badges - Light */
[data-theme="light"] .tech-badge {
  background: rgba(248, 249, 251, 0.9);
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .tech-badge:hover {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.25);
}

[data-theme="light"] .tech-badges {
  border-top-color: rgba(0, 0, 0, 0.06);
}

/* Work Cards - Light */
[data-theme="light"] .work-card-image {
  border-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .work-card:hover .work-card-image {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Why Section - Light */
[data-theme="light"] .why-card {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .why-card-glow {
  background: rgba(99, 102, 241, 0.1);
}

[data-theme="light"] .comparison-item {
  background: rgba(248, 249, 251, 1);
  border-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .comparison-item.velto {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
  border-color: rgba(99, 102, 241, 0.3);
}

/* CTA Section - Light */
[data-theme="light"] .cta-section {
  background: linear-gradient(180deg, var(--velto-bg) 0%, #EFF1F5 100%);
}

[data-theme="light"] .cta-card {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .cta-glow-1 {
  background: rgba(99, 102, 241, 0.12);
}

[data-theme="light"] .cta-glow-2 {
  background: rgba(139, 92, 246, 0.08);
}

/* Section Tags - Light */
[data-theme="light"] .section-tag {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.15);
}

/* Scroll Indicator - Light */
[data-theme="light"] .hero-scroll-inner {
  color: var(--velto-text-dim);
}


/* ===== MAIN CONTENT (fixed nav offset) ===== */
.main-content {
  padding-top: 5rem; /* nav h-20 = 80px */
}

/* Index hero is full-screen behind nav, so remove offset */
.main-content:has(.hero-section) {
  padding-top: 0;
}

/* ===== GLOBALS (globals.css) ===== */

/* Note: @tailwind directives removed as they require build tooling.
   The component/utility classes below are kept as plain CSS. */

/* === CSS Variables === */
/* (Already defined in HEAD THEME section above - skipping duplicates) */

/* === Base Layer === */
::selection {
  background: rgba(167, 139, 250, 0.3);
  color: white;
}

/* === Component Layer === */

/* NextUI Card - Elevated with animation */
.nextui-card {
  background: linear-gradient(145deg, rgba(30, 27, 46, 0.9), rgba(15, 14, 23, 0.95));
  border: 1px solid var(--velto-glass-border);
  border-radius: 20px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  animation: slideUp 0.4s ease-out;
  transition: border-color 250ms, box-shadow 250ms;
}

.nextui-card:hover {
  border-color: rgba(167, 139, 250, 0.15);
}

/* Neon Effects */
.neon-glow {
  box-shadow: 0 0 20px rgba(167, 139, 250, 0.4);
}

.neon-glow-sm {
  box-shadow: 0 0 10px rgba(167, 139, 250, 0.3);
}

/* Line Clamp utilities */
.line-clamp-1 {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Hide scrollbar but keep functionality */
.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.scrollbar-hide::-webkit-scrollbar {
  display: none;
}

/* Text Shadow */
.text-shadow-neon {
  text-shadow: 0 0 20px rgba(167, 139, 250, 0.5);
}

/* === Animations (Global) === */
@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes slideUp {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  0% { opacity: 0; transform: translateY(-10px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  0% { opacity: 0; transform: scale(0.95); }
  100% { opacity: 1; transform: scale(1); }
}


/* ===== INDEX PAGE (index.ejs) ===== */

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(167, 139, 250, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 70% 80%, rgba(45, 212, 191, 0.08), transparent),
    linear-gradient(to bottom, var(--velto-bg), var(--velto-input-bg));
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(167, 139, 250, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167, 139, 250, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 8s ease-in-out infinite;
}

.hero-orb-1 {
  width: 400px;
  height: 400px;
  top: 10%;
  left: 20%;
  background: rgba(167, 139, 250, 0.2);
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 300px;
  height: 300px;
  bottom: 20%;
  right: 15%;
  background: rgba(45, 212, 191, 0.12);
  animation-delay: -4s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -30px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--velto-card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--velto-glass-border);
  border-radius: 9999px;
  margin-bottom: 2rem;
  animation: fadeSlideUp 0.6s ease-out both;
}

.hero-badge span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--velto-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--velto-success);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  animation: fadeSlideUp 0.6s ease-out 0.1s both;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(243, 244, 246, 0.7);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
  font-weight: 300;
  animation: fadeSlideUp 0.6s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  animation: fadeSlideUp 0.6s ease-out 0.3s both;
}

.hero-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--velto-grad-btn);
  color: white;
  font-weight: 600;
  border-radius: 9999px;
  transition: all 0.3s ease;
  box-shadow: var(--velto-shadow-glow);
}

.hero-btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--velto-shadow-hover);
}

.hero-btn-primary:active {
  transform: scale(0.96);
}

.hero-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--velto-card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(167, 139, 250, 0.2);
  color: var(--velto-text);
  font-weight: 600;
  border-radius: 9999px;
  transition: all 0.3s ease;
}

.hero-btn-secondary:hover {
  background: rgba(167, 139, 250, 0.15);
  border-color: rgba(167, 139, 250, 0.4);
  transform: translateY(-2px);
}

.hero-btn-secondary:active {
  transform: scale(0.96);
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s ease-in-out infinite;
}

.hero-scroll-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--velto-primary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Power Grid Section */
.power-grid-section {
  padding: 6rem 0;
  background: linear-gradient(180deg, var(--velto-input-bg) 0%, var(--velto-bg) 100%);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: rgba(167, 139, 250, 0.1);
  border: 1px solid rgba(167, 139, 250, 0.2);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--velto-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--velto-text);
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--velto-text-dim);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Power Grid Cards */
.power-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .power-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .power-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.power-card {
  position: relative;
  background: linear-gradient(145deg, rgba(30, 27, 46, 0.8), rgba(15, 14, 23, 0.9));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 1.5rem;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  animation: cardSlideUp 0.5s ease-out both;
  animation-delay: calc(var(--delay, 0) * 0.1s);
}

.power-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(167, 139, 250, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.power-card:hover {
  transform: translateY(-8px);
  border-color: rgba(167, 139, 250, 0.3);
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.3),
    0 0 60px rgba(167, 139, 250, 0.1);
}

.power-card:hover::before {
  opacity: 1;
}

.power-card:active {
  transform: translateY(-4px) scale(0.98);
}

@keyframes cardSlideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.power-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.2), rgba(124, 58, 237, 0.1));
  border: 1px solid rgba(167, 139, 250, 0.3);
  border-radius: 1rem;
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
}

.power-card-icon i,
.power-card-icon svg {
  font-size: 1.5rem;
  color: var(--velto-primary);
  transition: transform 0.3s ease;
}

.power-card:hover .power-card-icon {
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.3), rgba(124, 58, 237, 0.2));
  box-shadow: 0 0 20px rgba(167, 139, 250, 0.3);
}

.power-card:hover .power-card-icon i,
.power-card:hover .power-card-icon svg {
  transform: scale(1.1);
}

.power-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--velto-text);
  margin-bottom: 0.75rem;
}

.power-card-desc {
  font-size: 0.875rem;
  color: var(--velto-text-dim);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* Tech Spec Badges */
.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  background: rgba(20, 20, 23, 0.8);
  border: 1px solid var(--velto-input-border);
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--velto-primary);
  transition: all 0.2s ease;
}

.tech-badge:hover {
  background: rgba(167, 139, 250, 0.1);
  border-color: rgba(167, 139, 250, 0.3);
  color: var(--velto-primary);
}

.tech-badge i {
  font-size: 0.65rem;
  opacity: 0.7;
}

/* Featured Work Section */
.work-section {
  padding: 6rem 0;
  background: var(--velto-bg);
}

.work-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 3rem;
}

.work-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--velto-primary);
  border-bottom: 1px solid var(--velto-primary);
  padding-bottom: 0.25rem;
  transition: all 0.2s ease;
}

.work-link:hover {
  color: var(--velto-primary);
  border-color: var(--velto-primary);
}

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

@media (min-width: 768px) {
  .work-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.work-card {
  position: relative;
  cursor: pointer;
  animation: cardSlideUp 0.5s ease-out both;
  animation-delay: calc(var(--delay, 0) * 0.1s);
}

.work-card-image {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--velto-surface);
  border-radius: 1.25rem;
  overflow: hidden;
  margin-bottom: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.4s ease;
}

.work-card:hover .work-card-image {
  border-color: rgba(167, 139, 250, 0.4);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.work-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.work-card:hover .work-card-image img {
  transform: scale(1.08);
}

.work-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 26, 31, 0.9), transparent 60%);
}

.work-card-info {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
}

.work-card-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--velto-primary);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 4px;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.work-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--velto-text);
}

.work-card-desc {
  font-size: 0.875rem;
  color: var(--velto-text-dim);
  line-height: 1.6;
}

/* Why Velto Section */
.why-section {
  padding: 6rem 0;
  background: var(--velto-bg);
  border-top: 1px solid rgba(44, 44, 51, 0.5);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .why-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.why-content h3 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--velto-text);
  margin-bottom: 1.5rem;
  line-height: 1.4;
}

.why-content p {
  color: var(--velto-text-dim);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.why-list-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.why-list-item i {
  color: var(--velto-primary);
  font-size: 1.125rem;
}

.why-list-item span {
  color: var(--velto-text);
  font-weight: 300;
}

.why-visual {
  position: relative;
}

.why-card {
  background: var(--velto-card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(167, 139, 250, 0.1);
  border-radius: 1.5rem;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.why-card-glow {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 150px;
  height: 150px;
  background: rgba(167, 139, 250, 0.15);
  border-radius: 50%;
  filter: blur(50px);
}

.comparison-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background: var(--velto-surface);
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.comparison-item.velto {
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.15), rgba(124, 58, 237, 0.08));
  border-color: rgba(167, 139, 250, 0.4);
}

.comparison-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.comparison-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.comparison-icon.gray {
  background: var(--velto-surface);
  color: var(--velto-text-dim);
}

.comparison-icon.purple {
  background: var(--velto-primary);
  color: white;
}

.comparison-label {
  font-size: 0.7rem;
  color: var(--velto-text-dim);
}

.comparison-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--velto-text);
}

.comparison-status i {
  font-size: 1rem;
}

.comparison-status .fa-times { color: var(--velto-danger); }
.comparison-status .fa-check { color: var(--velto-primary); }

.comparison-arrow {
  display: flex;
  justify-content: center;
  padding: 0.5rem 0;
  color: var(--velto-text-dim);
}

/* CTA Section */
.cta-section {
  padding: 6rem 0;
  background: linear-gradient(180deg, var(--velto-bg) 0%, var(--velto-input-bg) 100%);
}

.cta-card {
  max-width: 900px;
  margin: 0 auto;
  background: var(--velto-card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(167, 139, 250, 0.1);
  border-radius: 2rem;
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-glow-1 {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 200px;
  height: 200px;
  background: rgba(167, 139, 250, 0.2);
  border-radius: 50%;
  filter: blur(60px);
}

.cta-glow-2 {
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 200px;
  height: 200px;
  background: rgba(45, 212, 191, 0.15);
  border-radius: 50%;
  filter: blur(60px);
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--velto-text);
  margin-bottom: 1rem;
}

.cta-desc {
  font-size: 1.125rem;
  color: var(--velto-text-dim);
  margin-bottom: 2rem;
  font-weight: 300;
}

/* Banner Section */
.banner-section {
  padding: 2rem 0;
  background: var(--velto-bg);
  border-top: 1px solid rgba(44, 44, 51, 0.5);
}

.banner-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.banner-item {
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.banner-item:hover {
  opacity: 1;
}

.banner-item img {
  max-height: 48px;
  object-fit: contain;
}

/* Popup Styles */
.popup-container {
  position: fixed;
  z-index: 50;
  background: rgba(44, 44, 51, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(167, 139, 250, 0.15);
  border-radius: 1rem;
  padding: 1.25rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid rgba(44, 44, 51, 0.8);
}

.popup-title {
  font-weight: 600;
  color: var(--velto-text);
}

.popup-close {
  color: var(--velto-text-dim);
  transition: color 0.2s ease;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.popup-close:hover {
  color: var(--velto-text);
}

.popup-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  margin-top: 0.75rem;
  border-top: 1px solid rgba(44, 44, 51, 0.8);
}

.popup-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--velto-text-dim);
  cursor: pointer;
  transition: color 0.2s ease;
}

.popup-checkbox:hover {
  color: var(--velto-text);
}


/* ===== INSTALL PAGE (install/index.ejs) ===== */

.velto-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.velto-input:focus {
  box-shadow: 0 0 0 2px rgba(167, 139, 250, 0.2);
}


/* ===== INSTALL COMPLETE PAGE (install/complete.ejs) ===== */

.success-icon {
  animation: successScaleIn 0.5s ease-out;
}

@keyframes successScaleIn {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}


/* ===== CAPTCHA WIDGET (_captcha.ejs) ===== */

.captcha-widget {
  display: flex;
  justify-content: center;
}

/* Dark theme adjustments */
.captcha-widget iframe {
  border-radius: 8px;
}


/* ===== ALERT PAGE ===== */

.alert-container {
  width: 100%;
  max-width: 420px;
  animation: alertFadeInUp 0.3s ease-out;
}

@keyframes alertFadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.alert-card {
  background: var(--velto-card-bg, rgba(30, 30, 36, 0.95));
  border: 1px solid var(--velto-glass-border, rgba(255, 255, 255, 0.08));
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  backdrop-filter: blur(20px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.alert-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  animation: alertPulse 2s ease-in-out infinite;
}

.alert-icon.info {
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.2), rgba(124, 58, 237, 0.2));
  color: var(--velto-primary);
}

.alert-icon.success {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(16, 185, 129, 0.2));
  color: var(--velto-success);
}

.alert-icon.error {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(220, 38, 38, 0.2));
  color: var(--velto-danger);
}

.alert-icon.warning {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.2));
  color: var(--velto-warning);
}

@keyframes alertPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.05); opacity: 0.9; }
}

.alert-icon svg {
  width: 2rem;
  height: 2rem;
}

.alert-message {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--velto-text, #e4e4e7);
  margin-bottom: 2rem;
  word-break: keep-all;
}

.alert-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.alert-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 12px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  border: none;
}

.alert-btn-primary {
  background: var(--velto-grad-btn);
  color: #fff;
  box-shadow: var(--velto-shadow-glow);
}

.alert-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--velto-shadow-hover);
}

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

.alert-btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--velto-glass-border);
  color: var(--velto-text-secondary);
}

.alert-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--velto-text);
}

.alert-countdown {
  margin-top: 1.5rem;
  font-size: 0.8125rem;
  color: var(--velto-text-dim);
}

.alert-countdown span {
  color: var(--velto-primary);
  font-weight: 600;
}

.alert-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  opacity: 0.5;
}

.alert-logo-icon {
  width: 1.5rem;
  height: 1.5rem;
  background: linear-gradient(135deg, var(--velto-primary), var(--velto-primary-hover));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.75rem;
}

.alert-logo-text {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--velto-text-dim);
}


/* ===== ERROR PAGES (404, 500) ===== */

.error-page-body {
  background: var(--velto-bg, #0F0E17);
  color: var(--velto-text, #F3F4F6);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-main, 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif);
}

.error-glass-card {
  background: var(--velto-card-bg, rgba(30, 27, 46, 0.7));
  backdrop-filter: blur(12px);
  border: 1px solid var(--velto-glass-border, rgba(139, 92, 246, 0.15));
  border-radius: 1rem;
  padding: 3rem;
  text-align: center;
  max-width: 28rem;
}

.error-code {
  font-size: 5rem;
  font-weight: 700;
  background: var(--velto-grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
  line-height: 1;
}

.error-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.error-message {
  color: var(--velto-text-dim);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.error-btn {
  display: inline-block;
  background: var(--velto-grad-btn);
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-weight: bold;
  box-shadow: var(--velto-shadow-glow);
  transition: all 0.3s;
  text-decoration: none;
}

.error-btn:hover {
  box-shadow: var(--velto-shadow-hover);
  transform: translateY(-2px);
}