/* ============================================================
   VRPro Landing Page — Standalone Stylesheet
   기존 index.html / style.css 와 완전 독립
   ============================================================ */

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

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #0f1629;
    --bg-card: rgba(15, 22, 41, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.04);
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --primary-glow: rgba(59, 130, 246, 0.25);
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.2);
    --cyan: #22d3ee;
    --emerald: #10b981;
    --amber: #f59e0b;
    --rose: #f43f5e;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: rgba(148, 163, 184, 0.1);
    --border-light: rgba(148, 163, 184, 0.06);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --shadow-glow: 0 0 80px rgba(59, 130, 246, 0.08);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: 'Pretendard', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

/* ─── Layout Container ─── */
.landing-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ─── Background Decorations ─── */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow-1 {
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow-2 {
    position: fixed;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    pointer-events: none;
    z-index: 0;
}

/* ─── Navigation ─── */
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition-smooth);
}

.landing-nav.scrolled {
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.6rem 0;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.nav-logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px var(--primary-glow);
}

.nav-logo-icon img {
    width: 22px;
    height: 22px;
    filter: brightness(10);
}

.nav-logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-glass);
}

.nav-cta {
    padding: 0.55rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-full);
    box-shadow: 0 4px 16px var(--primary-glow);
    transition: var(--transition-fast);
    margin-left: 0.5rem;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}

.nav-mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
}

.nav-mobile-toggle svg {
    width: 24px;
    height: 24px;
}

.nav-mobile-close {
    display: none;
}

/* ─── Hero Section ─── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem 0.4rem 0.5rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 1.5rem;
}

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

@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--primary-light), var(--cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-title .highlight-amber {
    background: linear-gradient(135deg, var(--amber), #fbbf24);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

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

.btn-hero-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 2rem;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-full);
    box-shadow: 0 6px 24px var(--primary-glow);
    transition: var(--transition-fast);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 36px rgba(59, 130, 246, 0.4);
}

.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

.btn-hero-secondary:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(148, 163, 184, 0.2);
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.hero-stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff, #cbd5e1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

/* Hero Visual — 3D Rotating Cube */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.cube-scene {
    width: 320px;
    height: 320px;
    perspective: 800px;
    position: relative;
}

.cube {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    animation: cube-rotate 20s linear infinite;
}

.cube-face {
    position: absolute;
    width: 280px;
    height: 280px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: rgba(15, 22, 41, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    left: 20px;
    top: 20px;
}

.cube-face-label {
    font-size: 0.9rem;
    font-weight: 700;
    margin-top: 0.75rem;
    color: var(--text-secondary);
}

.cube-face-front {
    transform: rotateY(0deg) translateZ(140px);
}

.cube-face-right {
    transform: rotateY(90deg) translateZ(140px);
}

.cube-face-back {
    transform: rotateY(180deg) translateZ(140px);
}

.cube-face-left {
    transform: rotateY(-90deg) translateZ(140px);
}

@keyframes cube-rotate {
    from {
        transform: rotateX(-15deg) rotateY(0deg);
    }

    to {
        transform: rotateX(-15deg) rotateY(360deg);
    }
}

/* ─── Section Shared ─── */
.landing-section {
    position: relative;
    padding: 6rem 0;
    z-index: 1;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3.5rem;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.9rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary-light);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ─── Problem Section ─── */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--rose), var(--amber));
    opacity: 0;
    transition: var(--transition-smooth);
}

.problem-card:hover {
    transform: translateY(-4px);
    border-color: rgba(244, 63, 94, 0.2);
}

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

.problem-icon {
    width: 52px;
    height: 52px;
    background: rgba(244, 63, 94, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

.problem-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.problem-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ─── Process Steps ─── */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 48px;
    left: 16.66%;
    right: 16.66%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--emerald));
    opacity: 0.3;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 96px;
    height: 96px;
    margin: 0 auto 1.5rem;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    transition: var(--transition-smooth);
}

.step-number-text {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.step-number-icon {
    font-size: 2rem;
    margin-top: 0.2rem;
}

.process-step:hover .step-number {
    border-color: var(--primary);
    box-shadow: 0 0 30px var(--primary-glow);
    transform: scale(1.05);
}

.process-step h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.process-step p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ─── Features (Differentiators) ─── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2rem;
    display: flex;
    gap: 1.25rem;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.feature-icon.blue {
    background: rgba(59, 130, 246, 0.12);
}

.feature-icon.purple {
    background: rgba(139, 92, 246, 0.12);
}

.feature-icon.cyan {
    background: rgba(34, 211, 238, 0.12);
}

.feature-icon.emerald {
    background: rgba(16, 185, 129, 0.12);
}

.feature-icon.amber {
    background: rgba(245, 158, 11, 0.12);
}

.feature-icon.rose {
    background: rgba(244, 63, 94, 0.12);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ─── Pricing Section ─── */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    position: relative;
}

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 0 40px var(--primary-glow);
}

.pricing-card.popular::before {
    content: '추천';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.25rem 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-full);
}

.pricing-card:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 130, 246, 0.15);
}

.pricing-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.pricing-price {
    font-size: 2.25rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 0.25rem;
}

.pricing-price .currency {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
}

.pricing-price .period {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

.pricing-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 2rem;
    flex: 1;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pricing-features li .check {
    color: var(--emerald);
    font-weight: 700;
}

.pricing-btn {
    width: 100%;
    padding: 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    text-align: center;
}

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

.pricing-btn-outline:hover {
    color: var(--text-primary);
    border-color: rgba(148, 163, 184, 0.3);
    background: var(--bg-glass);
}

.pricing-btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 4px 16px var(--primary-glow);
}

.pricing-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}

.pricing-enterprise-note {
    text-align: center;
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.pricing-enterprise-note strong {
    color: var(--text-primary);
}

/* ─── FAQ Section ─── */
.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-fast);
}

.faq-item:hover {
    border-color: rgba(59, 130, 246, 0.15);
}

.faq-question {
    width: 100%;
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary-light);
}

.faq-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
    color: var(--primary-light);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.open .faq-answer {
    max-height: 300px;
}

.faq-answer-inner {
    padding: 0 1.5rem 1.25rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ─── CTA Band ─── */
.cta-band {
    position: relative;
    padding: 5rem 0;
    z-index: 1;
}

.cta-band-inner {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.08));
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.cta-band-inner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(59, 130, 246, 0.05), transparent 30%);
    animation: cta-rotate 15s linear infinite;
    pointer-events: none;
}

@keyframes cta-rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.cta-band h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.cta-band p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.cta-band-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
}

/* ─── Footer ─── */
.landing-footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: 3rem 0 2rem;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-brand {
    max-width: 280px;
}

.footer-brand-name {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-col a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 0.25rem 0;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 2rem auto 0;
    padding: 1.5rem 1.5rem 0;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ─── Scroll-In Animation ─── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-visual {
        display: none;
    }

    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .landing-section {
        padding: 4rem 0;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 14, 26, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 1rem;
        z-index: 999;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-link {
        font-size: 1.25rem;
        padding: 0.75rem 1.5rem;
    }

    .nav-mobile-toggle {
        display: flex;
    }

    .nav-mobile-close {
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        width: 40px;
        height: 40px;
        display: none;
        align-items: center;
        justify-content: center;
        color: var(--text-secondary);
        font-size: 1.5rem;
    }

    .nav-links.open .nav-mobile-close {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding: 7rem 0 3rem;
    }

    .hero-stats {
        gap: 1.25rem;
    }

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

    .process-steps {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .process-steps::before {
        display: none;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .footer-inner {
        flex-direction: column;
    }

    .footer-links {
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .cta-band-inner {
        padding: 3rem 1.5rem;
    }
}

/* ─── Custom Cursor (Evertech-Style 3-Layer) ─── */
.custom-cursor-wrap {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.cursor-glow {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    mix-blend-mode: screen;
}

.cursor-ring {
    position: absolute;
    width: 36px;
    height: 36px;
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
    transition: width 0.3s, height 0.3s, border-width 0.3s, border-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

.cursor-ring .cursor-label {
    font-size: 9px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: #fff;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s;
}

.cursor-ring.hover {
    width: 50px;
    height: 50px;
    border-width: 1px;
    border-color: rgba(255, 255, 255, 0.4);
}

.cursor-ring.hover .cursor-label {
    opacity: 1;
}

.cursor-dot {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
    transition: transform 0.15s;
}

.cursor-dot.clicking {
    transform: translate(-50%, -50%) scale(0.5);
}

.cursor-ripple {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.4);
    mix-blend-mode: difference;
    transform: translate(-50%, -50%);
    animation: cursor-ripple-out 0.6s ease-out forwards;
}

@keyframes cursor-ripple-out {
    0% { width: 10px; height: 10px; opacity: 1; }
    100% { width: 80px; height: 80px; opacity: 0; }
}

/* Hide cursor on mobile */
@media (max-width: 1024px) {
    .custom-cursor-wrap { display: none; }
}

/* ─── Enhanced Buttons (Evertech 3D Style) ─── */
.btn-hero-primary {
    position: relative;
    overflow: hidden;
    background: linear-gradient(to bottom, var(--primary), var(--primary-dark));
    box-shadow:
        0 6px 24px var(--primary-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.15),
        inset 0 -2px 4px rgba(0, 0, 0, 0.15);
}

.btn-hero-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.15) 50%, transparent 100%);
    transform: translateX(-100%) skewX(-15deg);
    transition: none;
}

.btn-hero-primary:hover::after {
    animation: btn-shine 0.8s ease forwards;
}

.btn-hero-primary:hover {
    transform: translateY(-4px);
    box-shadow:
        0 16px 40px rgba(59, 130, 246, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        inset 0 -2px 4px rgba(0, 0, 0, 0.15);
}

.btn-hero-primary:active {
    transform: translateY(1px);
    box-shadow:
        0 2px 8px rgba(59, 130, 246, 0.2),
        inset 0 2px 6px rgba(0, 0, 0, 0.2);
}

@keyframes btn-shine {
    0% { transform: translateX(-100%) skewX(-15deg); }
    100% { transform: translateX(200%) skewX(-15deg); }
}

/* Secondary Button Enhanced */
.btn-hero-secondary {
    position: relative;
    overflow: hidden;
}

.btn-hero-secondary::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255,255,255,0.05), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

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

.btn-hero-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* Cards Enhanced Hover */
.problem-card:hover,
.feature-card:hover {
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.08), 0 0 0 1px rgba(59, 130, 246, 0.15);
}

.pricing-card:hover {
    box-shadow: 0 25px 60px rgba(59, 130, 246, 0.1);
}

/* ─── Quick Menu (Right Side Fixed) ─── */
.quick-menu {
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 60;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    opacity: 0;
    animation: quick-menu-in 0.6s 1s ease forwards;
}

@keyframes quick-menu-in {
    to { opacity: 1; }
}

.quick-menu-box {
    background: rgba(15, 22, 41, 0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: 20px;
    width: 160px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.quick-menu-header {
    padding: 16px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    text-align: center;
}

.quick-menu-header .label {
    display: block;
    font-size: 9px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--primary-light);
    margin-bottom: 6px;
}

.quick-menu-header .phone {
    font-size: 13px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.quick-menu-header .email {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
}

.quick-menu-links {
    display: flex;
    flex-direction: column;
}

.quick-menu-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(148, 163, 184, 0.06);
    transition: var(--transition-fast);
}

.quick-menu-link:last-child {
    border-bottom: none;
}

.quick-menu-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.quick-menu-link:hover .qm-icon {
    color: var(--primary-light);
}

.qm-icon {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: var(--transition-fast);
    flex-shrink: 0;
}

/* Quick Menu Floating Buttons */
.quick-menu-floats {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.qm-float-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    cursor: pointer;
}

.qm-float-btn:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.qm-float-btn .qm-tooltip {
    position: absolute;
    right: calc(100% + 12px);
    padding: 5px 10px;
    background: rgba(15, 22, 41, 0.9);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.qm-float-btn:hover .qm-tooltip {
    opacity: 1;
}

.qm-kakao {
    background: #FEE500;
    color: #3A1D1D;
}

.qm-chat {
    background: var(--accent);
    color: #fff;
}

/* TOP Button */
.qm-top-btn {
    width: 100%;
    height: 38px;
    margin-top: 12px;
    background: linear-gradient(to bottom, var(--primary), var(--primary-dark));
    color: #fff;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 4px 16px var(--primary-glow);
    opacity: 0;
    transform: scale(0);
    transition: opacity 0.3s, transform 0.3s, background 0.2s;
}

.qm-top-btn.visible {
    opacity: 1;
    transform: scale(1);
}

.qm-top-btn:hover {
    background: linear-gradient(to bottom, var(--primary-light), var(--primary));
}

/* Hide quick menu on mobile/tablet */
@media (max-width: 1280px) {
    .quick-menu { display: none; }
}

/* ─── Contact Page Styles ─── */
.contact-hero {
    position: relative;
    padding: 10rem 0 6rem;
    text-align: center;
    overflow: hidden;
}

.contact-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        var(--bg-primary) 0%,
        rgba(59, 130, 246, 0.08) 50%,
        var(--bg-primary) 100%);
    pointer-events: none;
}

.contact-hero .section-tag {
    position: relative;
    z-index: 1;
}

.contact-hero-title {
    position: relative;
    z-index: 1;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-top: 1rem;
}

.contact-hero-desc {
    position: relative;
    z-index: 1;
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-top: 0.75rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Contact Layout */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
    margin-top: -2rem;
}

/* Info Panel */
.contact-info {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    height: fit-content;
}

.contact-info h2 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.contact-info .info-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.contact-info-text h5 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.15rem;
}

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

/* Contact Form */
.contact-form-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem 3rem;
}

.contact-form-header {
    margin-bottom: 2rem;
}

.contact-form-header h3 {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 0.3rem;
}

.contact-form-header p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full {
    grid-column: span 2;
}

.form-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    padding-left: 2px;
}

.form-input,
.form-textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.04);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
    resize: none;
    min-height: 120px;
    line-height: 1.6;
}

/* Custom Dropdown */
.form-dropdown {
    position: relative;
}

.form-dropdown-trigger {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.form-dropdown-trigger.has-value {
    color: var(--text-primary);
    font-weight: 600;
}

.form-dropdown-trigger:hover {
    border-color: rgba(148, 163, 184, 0.2);
}

.form-dropdown-trigger .dd-arrow {
    transition: transform 0.2s;
    font-size: 0.7rem;
}

.form-dropdown.open .dd-arrow {
    transform: rotate(180deg);
}

.form-dropdown-list {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: rgba(15, 22, 41, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    padding: 6px;
    z-index: 50;
    display: none;
    max-height: 240px;
    overflow-y: auto;
}

.form-dropdown.open .form-dropdown-list {
    display: block;
    animation: dd-in 0.2s ease;
}

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

.form-dropdown-option {
    padding: 0.65rem 0.85rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.form-dropdown-option:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.form-dropdown-option.selected {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-light);
    font-weight: 700;
}

.form-dropdown-option .dd-check {
    opacity: 0;
    font-size: 0.8rem;
}

.form-dropdown-option.selected .dd-check {
    opacity: 1;
}

/* Submit Button */
.contact-submit {
    width: 100%;
    padding: 1rem;
    margin-top: 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(to bottom, var(--primary), var(--primary-dark));
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition-fast);
    box-shadow:
        0 6px 20px var(--primary-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        inset 0 -2px 4px rgba(0, 0, 0, 0.12);
}

.contact-submit::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.12) 50%, transparent 100%);
    transform: translateX(-100%) skewX(-15deg);
}

.contact-submit:hover {
    transform: translateY(-3px);
    box-shadow:
        0 16px 40px rgba(59, 130, 246, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.contact-submit:hover::after {
    animation: btn-shine 0.8s ease forwards;
}

.contact-submit:active {
    transform: translateY(1px);
}

/* Success State */
.contact-success {
    text-align: center;
    padding: 5rem 2rem;
}

.contact-success-icon {
    width: 80px;
    height: 80px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
}

.contact-success h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.contact-success p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 360px;
    margin: 0 auto 2rem;
}

.contact-success-btn {
    display: inline-flex;
    padding: 0.7rem 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

.contact-success-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--primary-glow);
}

/* Error Message */
.form-error {
    display: none;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    margin-top: 1rem;
    background: rgba(244, 63, 94, 0.08);
    border: 1px solid rgba(244, 63, 94, 0.2);
    border-radius: var(--radius-md);
    color: var(--rose);
    font-size: 0.85rem;
    font-weight: 500;
}

.form-error.show {
    display: flex;
}

/* Contact Responsive */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-group.full {
        grid-column: span 1;
    }

    .contact-form-wrap {
        padding: 2rem 1.5rem;
    }

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

/* ─── Noise Overlay (Evertech) ─── */
.noise-overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    pointer-events: none;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px;
}