/* ==========================================================================
   AI 인맥자산화 플랫폼 - 모바일 퍼스트 랜딩페이지
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background: #ffffff;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Section */
.section {
    padding: 60px 0;
    position: relative;
}

.section-white {
    background: #ffffff;
}

.section-gray {
    background: #f8fafc;
}

.section-dark {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: #ffffff;
}

.section-gradient {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: #ffffff;
}

.section-cta {
    background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
    color: #ffffff;
    text-align: center;
}

.section-title {
    font-size: 28px;
    font-weight: 900;
    text-align: center;
    margin-bottom: 30px;
    line-height: 1.4;
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    margin-bottom: 30px;
    opacity: 0.9;
}

.section-highlight {
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1e40af 100%);
    color: #ffffff;
    position: relative;
    overflow: hidden;
    padding: 80px 20px 60px;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(249, 115, 22, 0.2);
    border: 2px solid #f97316;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 700;
    color: #f97316;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero-title {
    font-size: 36px;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.3;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-features {
    margin: 30px 0;
}

.hero-feature {
    font-size: 16px;
    margin: 12px 0;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.hero-emphasis {
    font-size: 28px;
    font-weight: 700;
    margin: 30px 0;
    padding: 20px;
    background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.scroll-indicator {
    margin-top: 40px;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: 24px;
    display: block;
}

.scroll-indicator p {
    font-size: 12px;
    margin-top: 8px;
    opacity: 0.7;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ==========================================================================
   CTA Button
   ========================================================================== */
.cta-button {
    display: inline-block;
    padding: 18px 40px;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
    transition: all 0.3s ease;
    text-decoration: none;
    font-family: 'Noto Sans KR', sans-serif;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(249, 115, 22, 0.6);
}

.cta-button:active {
    transform: translateY(0);
}

.cta-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
    }
    50% {
        box-shadow: 0 10px 40px rgba(249, 115, 22, 0.8);
    }
    100% {
        box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
    }
}

/* ==========================================================================
   Timeline
   ========================================================================== */
.timeline {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin: 40px 0;
}

.timeline-item {
    text-align: center;
    padding: 20px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    min-width: 100px;
}

.timeline-item-future {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.timeline-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.timeline-label {
    font-size: 12px;
    opacity: 0.7;
    margin-bottom: 8px;
}

.timeline-text {
    font-size: 16px;
    font-weight: 700;
}

.timeline-arrow {
    font-size: 24px;
    color: #64748b;
}

/* ==========================================================================
   Funnel Diagram
   ========================================================================== */
.funnel-diagram {
    margin: 40px 0;
}

.funnel-item {
    text-align: center;
    padding: 20px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin: 10px 0;
}

.funnel-number {
    font-size: 36px;
    font-weight: 900;
    color: #2563eb;
    font-family: 'Inter', sans-serif;
}

.funnel-label {
    font-size: 14px;
    margin-top: 8px;
    opacity: 0.7;
}

.funnel-arrow {
    text-align: center;
    font-size: 24px;
    color: #64748b;
    margin: 10px 0;
}

.alert-box {
    text-align: center;
    padding: 20px;
    background: #fee2e2;
    border: 2px solid #ef4444;
    border-radius: 12px;
    margin: 30px 0;
}

.alert-icon {
    font-size: 24px;
    margin-right: 10px;
}

.alert-text {
    font-size: 18px;
    font-weight: 700;
    color: #dc2626;
}

.problem-list {
    margin-top: 40px;
}

.problem-list h3 {
    font-size: 20px;
    text-align: center;
    margin-bottom: 20px;
}

.problem-item {
    padding: 15px;
    background: #ffffff;
    border-left: 4px solid #ef4444;
    border-radius: 8px;
    margin: 10px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* ==========================================================================
   Comparison Table
   ========================================================================== */
.comparison-table {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    overflow: hidden;
    margin: 30px 0;
}

.comparison-header,
.comparison-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.comparison-cell {
    padding: 15px 10px;
    background: rgba(30, 41, 59, 0.8);
    text-align: center;
    font-size: 13px;
}

.comparison-header .comparison-cell {
    font-weight: 700;
    background: rgba(30, 41, 59, 1);
}

.comparison-cell.highlight {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    font-weight: 700;
}

.comparison-summary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.summary-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
}

.summary-label {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 8px;
}

.summary-value {
    font-size: 18px;
    font-weight: 700;
}

.summary-highlight {
    background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
}

.summary-arrow {
    font-size: 24px;
    font-weight: 700;
}

/* ==========================================================================
   Process Flow
   ========================================================================== */
.process-flow {
    margin: 40px 0;
}

.process-step {
    background: #ffffff;
    border-radius: 16px;
    padding: 24px;
    margin: 15px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: relative;
}

.process-step-final {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff;
}

.process-number {
    position: absolute;
    top: -10px;
    left: 20px;
    width: 32px;
    height: 32px;
    background: #2563eb;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.process-icon {
    font-size: 48px;
    text-align: center;
    margin-bottom: 15px;
}

.process-title {
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.process-desc {
    font-size: 14px;
    text-align: center;
    opacity: 0.7;
}

.process-arrow {
    text-align: center;
    font-size: 32px;
    color: #2563eb;
    margin: 5px 0;
}

/* ==========================================================================
   Simple Diagram
   ========================================================================== */
.simple-diagram {
    margin: 40px 0;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.simple-step {
    text-align: center;
    margin: 20px 0;
}

.simple-icon {
    font-size: 64px;
    margin-bottom: 10px;
}

.simple-label {
    font-size: 20px;
    font-weight: 700;
}

.simple-arrow {
    text-align: center;
    font-size: 32px;
    margin: 10px 0;
}

/* ==========================================================================
   ROI Comparison
   ========================================================================== */
.roi-comparison {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin: 40px auto;
    max-width: 600px;
    align-items: center;
}

.roi-box {
    background: #ffffff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.roi-box-highlight {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border: 3px solid #2563eb;
}

.roi-label {
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: #1e293b;
}

.roi-flow {
    margin: 20px 0;
}

.roi-item {
    padding: 12px;
    text-align: center;
    font-size: 16px;
    color: #1e293b;
}

.roi-number {
    font-size: 28px;
    font-weight: 900;
    color: #2563eb;
    font-family: 'Inter', sans-serif;
}

.roi-arrow {
    text-align: center;
    font-size: 24px;
    color: #64748b;
    margin: 8px 0;
}

.roi-result {
    text-align: center;
    font-size: 24px;
    font-weight: 900;
    padding: 16px;
    background: #f1f5f9;
    border-radius: 12px;
    margin-top: 20px;
    color: #1e293b;
}

.roi-result-highlight {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
}

.roi-summary {
    text-align: center;
    margin-top: 30px;
}

.roi-badge {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff;
    font-size: 20px;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

/* ==========================================================================
   Feature Grid
   ========================================================================== */
.feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin: 40px 0;
}

.feature-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 48px;
    text-align: center;
    margin-bottom: 15px;
}

.feature-title {
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    color: #1e293b;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 8px 0;
    color: #64748b;
    font-size: 14px;
}

.feature-list li:before {
    content: "• ";
    color: #2563eb;
    font-weight: 700;
    margin-right: 8px;
}

/* ==========================================================================
   Scale Comparison
   ========================================================================== */
.scale-comparison {
    margin: 40px 0;
}

.scale-box {
    background: #ffffff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin: 15px 0;
}

.scale-box-highlight {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border: 3px solid #2563eb;
}

.scale-label {
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    color: #1e293b;
}

.scale-bar {
    height: 40px;
    background: #e2e8f0;
    border-radius: 20px;
    overflow: hidden;
    margin: 15px 0;
}

.scale-fill {
    height: 100%;
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
    border-radius: 20px;
    transition: width 1s ease;
}

.scale-fill-full {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.scale-number {
    text-align: center;
    font-size: 24px;
    font-weight: 900;
    color: #1e293b;
    font-family: 'Inter', sans-serif;
}

.scale-arrow {
    text-align: center;
    font-size: 32px;
    color: #2563eb;
    margin: 20px 0;
}

/* ==========================================================================
   Checklist
   ========================================================================== */
.checklist {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 30px 20px;
    margin: 30px 0;
    backdrop-filter: blur(10px);
}

.checklist-title {
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
}

.checklist-item {
    padding: 12px;
    font-size: 16px;
    margin: 8px 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

.cta-heading {
    font-size: 28px;
    font-weight: 900;
    text-align: center;
    margin: 20px 0;
}

.cta-subtext {
    text-align: center;
    font-size: 18px;
    margin: 20px 0;
}

.cta-notes {
    text-align: center;
    margin-top: 20px;
    opacity: 0.8;
}

.cta-notes p {
    font-size: 14px;
    margin: 5px 0;
}

/* ==========================================================================
   Floating Buttons
   ========================================================================== */
.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.floating-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    font-family: 'Noto Sans KR', sans-serif;
    text-decoration: none;
}

.floating-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.floating-btn-apply {
    background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
    color: #ffffff;
    animation: pulse 2s infinite;
}

.floating-btn-share {
    background: #ffffff;
    color: #1e293b;
    border: 2px solid #e2e8f0;
}

.floating-btn-kakao {
    background: #FEE500;
    color: #000000;
    border: 2px solid #FEE500;
}

.floating-btn-kakao:hover {
    background: #FDD835;
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(254, 229, 0, 0.4);
}

.floating-icon {
    font-size: 20px;
}

.floating-text {
    font-size: 14px;
    line-height: 1.3;
    text-align: center;
}

/* ==========================================================================
   Toast
   ========================================================================== */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 16px 32px;
    background: rgba(30, 41, 59, 0.95);
    color: #ffffff;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease;
    text-align: center;
    max-width: 90%;
    line-height: 1.5;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: #1e293b;
    color: #94a3b8;
    padding: 30px 0;
    text-align: center;
    font-size: 14px;
}

/* ==========================================================================
   Responsive - Tablet
   ========================================================================== */
@media (min-width: 768px) {
    .section {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .timeline {
        flex-wrap: nowrap;
    }
    
    .roi-comparison {
        flex-direction: row;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .comparison-cell {
        font-size: 14px;
        padding: 18px 12px;
    }
}

/* ==========================================================================
   Responsive - Desktop
   ========================================================================== */
@media (min-width: 1024px) {
    .section {
        padding: 100px 0;
    }
    
    .section-title {
        font-size: 42px;
    }
    
    .hero-title {
        font-size: 56px;
    }
    
    .feature-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .comparison-cell {
        font-size: 15px;
        padding: 20px 15px;
    }
}

/* ==========================================================================
   Print
   ========================================================================== */
@media print {
    .floating-buttons,
    .modal,
    .toast {
        display: none !important;
    }
}