/**
 * 파일명: style.css
 * 경로: /assets/css/
 * 기능: BizCard.kr 메인 스타일시트
 * 작성일: 2025-10-26
 */

/* ===================================
   전역 설정
   =================================== */
:root {
    --primary-color: #0EA5E9;
    --secondary-color: #06B6D4;
    --success-color: #10B981;
    --danger-color: #EF4444;
    --warning-color: #F59E0B;
    --dark-color: #1F2937;
    --light-color: #F9FAFB;
    --gradient-1: linear-gradient(135deg, #0EA5E9 0%, #06B6D4 100%);
    --gradient-2: linear-gradient(135deg, #38BDF8 0%, #0EA5E9 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #1F2937;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 900;
}

.navbar-brand i {
    font-size: 1.8rem;
    vertical-align: middle;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.1) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    border-radius: 50%;
}

.badge {
    font-weight: 500;
    border-radius: 50px;
    font-size: 0.9rem;
}

.display-3 {
    line-height: 1.2;
}

/* URL Check Form */
.input-group-text {
    font-weight: 500;
    color: #6B7280;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(14, 165, 233, 0.15);
}

/* Avatar Group */
.avatar-group {
    display: flex;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: -10px;
    border: 3px solid white;
    color: white;
    font-size: 1.2rem;
}

.avatar:first-child {
    margin-left: 0;
}

    .display-3 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
    
    .phone-mockup i {
        font-size: 10rem;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .step-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===================================
   Utilities
   =================================== */
.text-gradient {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: var(--gradient-2) !important;
}

/* Hero Image - 핸드폰 크게, 플로팅 카드 작게 */
.hero-image {
    position: relative;
    padding: 50px;
}

.phone-mockup {
    position: relative;
    display: inline-block;
    padding: 50px;
}

.phone-mockup > i {
    font-size: 20rem !important;
    filter: drop-shadow(0 20px 40px rgba(14, 165, 233, 0.3));
}

.floating-card {
    position: absolute;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    animation: float 3s ease-in-out infinite;
    font-size: 1.3rem;
    color: var(--primary-color);
}

.card-1 {
    top: 15%;
    left: 5%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: 5%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    left: 15%;
    animation-delay: 2s;
}

@media (max-width: 1199px) {
    .phone-mockup > i {
        font-size: 16rem !important;
    }
    
    .floating-card {
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }
}

@media (max-width: 991px) {
    .phone-mockup > i {
        font-size: 14rem !important;
    }
    
    .floating-card {
        display: none;
    }
}

@media (max-width: 767px) {
    .phone-mockup > i {
        font-size: 10rem !important;
    }
}