/* ====================================
   OJ INC. - Cyan/Teal Theme
   Logo-based Design System
   ==================================== */

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

:root {
    --primary-cyan: #00D9FF;
    --primary-cyan-dark: #00B8D4;
    --primary-cyan-light: #33E1FF;
    --accent-cyan: #80E5FF;
    --dark-bg: #0a0f1e;
    --dark-gray: #1a2332;
    --light-gray: #f8fafc;
    --text-white: #ffffff;
    --text-gray: #64748b;
    --shadow: rgba(0, 0, 0, 0.1);
    --cyan-shadow: rgba(0, 217, 255, 0.15);
    --cyan-glow: rgba(0, 217, 255, 0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ====================================
   Typography
   ==================================== */

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

.section-title {
    font-size: 3rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 1.5rem;
    color: #111;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1.2rem;
    text-align: center;
    color: #666;
    margin-bottom: 4rem;
    line-height: 1.8;
}

/* ====================================
   Buttons
   ==================================== */

.btn-primary {
    display: inline-block;
    background: #000000;
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-cyan);
    cursor: pointer;
    box-shadow: 0 4px 15px var(--cyan-shadow);
    white-space: nowrap;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--cyan-shadow);
    background: var(--primary-cyan);
    color: #000000;
}

.btn-primary.btn-large {
    padding: 18px 40px;
    font-size: 1.2rem;
}

.btn-secondary {
    display: inline-block;
    background: #ffffff;
    color: var(--primary-cyan);
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-cyan);
    cursor: pointer;
}

.btn-secondary:hover {
    background: var(--primary-cyan);
    color: #fff;
    transform: translateY(-2px);
}

.btn-secondary.btn-large {
    padding: 18px 40px;
    font-size: 1.2rem;
}

.btn-call {
    display: inline-block;
    background: #fff;
    color: #000;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: 2px solid #e0e0e0;
}

.btn-call:hover {
    border-color: var(--primary-cyan);
    transform: translateY(-2px);
}

.btn-kakao {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #FEE500;
    color: #3C1E1E;
    padding: 10px 18px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 4px 15px rgba(254, 229, 0, 0.3);
    white-space: nowrap;
}

.btn-kakao svg {
    width: 18px;
    height: 18px;
    color: #3C1E1E;
}

.btn-kakao:hover {
    background: #FDD835;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(254, 229, 0, 0.4);
}

.btn-call-large {
    display: inline-block;
    background: #fff;
    color: #000;
    padding: 18px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    border: 2px solid #e0e0e0;
}

.btn-call-large:hover {
    border-color: var(--primary-cyan);
    transform: translateY(-2px);
}

.btn-calculate {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-cyan-light));
    color: #fff;
    padding: 16px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--cyan-shadow);
}

.btn-calculate:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--cyan-shadow);
}

/* ====================================
   Header
   ==================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #000000;
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 217, 255, 0.2);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    cursor: pointer;
}

.logo-image {
    height: 140px;
    width: auto;
    transition: transform 0.3s ease;
}

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

.logo h1 {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-cyan);
}

.logo .tagline {
    font-size: 0.85rem;
    color: var(--primary-cyan);
    font-weight: 600;
}

.nav {
    display: flex;
    gap: 1.5rem;
}

.nav a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.nav a:hover {
    color: var(--primary-cyan);
}

.header-cta {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: #ffffff;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.social-link:hover {
    transform: translateY(-2px);
}

.social-link.instagram:hover {
    color: #E1306C;
    background: #ffffff;
}

.social-link.blog:hover {
    color: #03C75A;
    background: #ffffff;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ====================================
   Floating Buttons
   ==================================== */

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

.floating-btn {
    padding: 16px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.floating-btn.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.floating-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
}

/* 카카오톡 버튼 */
.floating-kakao {
    background: #FEE500;
    color: #3C1E1E;
}

.floating-kakao svg {
    width: 24px;
    height: 24px;
}

.floating-kakao:hover {
    background: #FDD835;
}

/* 견적 요청 버튼 */
.floating-cta {
    background: #000000;
    color: #ffffff;
    border: 2px solid var(--primary-cyan);
    box-shadow: 0 4px 15px var(--cyan-shadow);
}

.floating-cta:hover {
    background: var(--primary-cyan);
    color: #000000;
    box-shadow: 0 6px 25px var(--cyan-shadow);
    transform: translateY(-2px);
}

/* ====================================
   Hero Section
   ==================================== */

.hero {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-gray) 100%);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--cyan-glow) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--cyan-glow) 0%, transparent 70%);
    border-radius: 50%;
}

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

.hero-badge {
    display: inline-block;
    background: transparent;
    color: var(--accent-cyan);
    padding: 0;
    border-radius: 0;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 2rem;
    border: none;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 2rem;
    line-height: 1.3;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.6rem;
    color: #ccc;
    margin-bottom: 4rem;
    line-height: 2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.highlight-text {
    color: var(--accent-cyan);
    font-weight: 800;
    font-size: 2rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--primary-cyan-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(96, 165, 250, 0.3);
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

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

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    margin-top: 5rem;
}

.stat-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-cyan), var(--primary-cyan-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    white-space: nowrap;
}

.stat-label {
    font-size: 1.2rem;
    color: #ccc;
    font-weight: 500;
}

.hero-banner {
    background: rgba(0, 255, 136, 0.1);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    margin-top: 3rem;
    border-top: 1px solid rgba(0, 255, 136, 0.2);
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
}

.banner-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    font-size: 0.95rem;
    color: #ccc;
}

.banner-item {
    color: var(--primary-green);
    font-weight: 600;
}

.banner-divider {
    color: #666;
}

/* ====================================
   Problem Section
   ==================================== */

.problem {
    padding: 120px 0;
    background: #f9f9f9;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.problem-card {
    background: #fff;
    padding: 3rem 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    min-height: 280px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.problem-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.problem-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #111;
}

.problem-card p {
    color: #666;
    line-height: 1.8;
}

.problem-conclusion {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: #ffffff;
    border-radius: 20px;
    border: 2px solid var(--primary-cyan);
}

.problem-conclusion p {
    font-size: 1.2rem;
    color: #333;
    font-weight: 600;
    line-height: 2;
    margin-bottom: 0.5rem;
}

.problem-conclusion p:first-child {
    font-size: 1.4rem;
    color: #111;
    font-weight: 700;
    margin-bottom: 1rem;
}

.problem-conclusion p:nth-child(2) {
    font-size: 1.1rem;
    color: #666;
    font-weight: 500;
    font-style: italic;
}

/* ====================================
   Solution Section
   ==================================== */

.solution {
    padding: 120px 0;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.solution-card {
    background: #fff;
    padding: 3rem 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 2px solid transparent;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px var(--cyan-shadow);
    border-color: var(--primary-cyan);
}

.solution-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.solution-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #111;
    white-space: nowrap;
}

.solution-card p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.solution-highlight {
    display: inline-block;
    background: #ffffff;
    color: #111;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    border: 2px solid var(--primary-cyan);
}

.solution-cta {
    text-align: center;
}

/* ====================================
   Calculator Section
   ==================================== */

.calculator {
    padding: 120px 0;
    background: #f9f9f9;
}

.calculator-box {
    max-width: 1000px;
    margin: 0 auto;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.calculator-form {
    padding: 4rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Noto Sans KR', sans-serif;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-cyan);
}

.radio-group,
.checkbox-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 500;
}

.radio-label input,
.checkbox-label input {
    width: auto;
    cursor: pointer;
}

.form-group input[type="file"] {
    padding: 10px;
    border: 2px dashed #e0e0e0;
    background: #f9f9f9;
    cursor: pointer;
}

.form-group input[type="file"]:hover {
    border-color: var(--primary-cyan);
    background: rgba(37, 99, 235, 0.05);
}

.file-help {
    font-size: 0.85rem;
    color: #999;
    margin-top: 0.5rem;
    line-height: 1.5;
}

/* 박스 사이즈 가이드 */
.box-size-guide {
    background: linear-gradient(135deg, #f0f7ff 0%, #e3f2fd 100%);
    border: 2px solid var(--primary-cyan);
    border-radius: 12px;
    padding: 1rem;  /* 1.5rem → 1rem 축소 */
    margin: 1rem 0;  /* 1.5rem → 1rem 축소 */
    text-align: center;
}

.guide-title {
    font-size: 1rem;  /* 1.1rem → 1rem 축소 */
    font-weight: 700;
    color: #111;
    margin-bottom: 0.75rem;  /* 1rem → 0.75rem 축소 */
}

.guide-image {
    background: #ffffff;
    border-radius: 8px;
    padding: 0.75rem;  /* 1rem → 0.75rem 축소 */
    margin: 0.5rem 0;  /* 1rem → 0.5rem 축소 */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.guide-image img {
    max-width: 100%;
    height: auto;
    max-height: 350px;  /* 250px → 350px 증가 */
    object-fit: contain;
    border-radius: 4px;
}

.guide-description {
    font-size: 0.9rem;  /* 0.95rem → 0.9rem 축소 */
    color: #555;
    margin-top: 0.75rem;  /* 1rem → 0.75rem 축소 */
    line-height: 1.6;
}

.guide-description strong {
    color: var(--primary-cyan);
    font-weight: 700;
}

.required {
    color: var(--primary-green);
}

.calculator-result {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-gray) 100%);
    padding: 3rem;
    text-align: center;
    color: #fff;
    display: none;
}

.calculator-result.active {
    display: block;
}

.calculator-result h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #ccc;
}

.result-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.result-price .currency,
.result-price .unit {
    font-size: 1.5rem;
    color: #999;
}

.result-price .price {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-cyan), var(--primary-cyan-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-note {
    font-size: 0.9rem;
    color: #999;
    margin-bottom: 2rem;
    line-height: 1.8;
}

/* ====================================
   Products Section
   ==================================== */

.products {
    padding: 120px 0;
    background: #f9f9f9;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: #fff;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.product-card.featured {
    border-color: var(--primary-cyan);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02), rgba(59, 130, 246, 0.05));
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--primary-cyan);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
}

.product-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.product-image {
    width: 100%;
    height: 420px;  /* 350px → 420px로 증가 */
    object-fit: contain;
    margin-bottom: 1.5rem;
    background-color: #ffffff !important;  /* 강제 흰색 배경 */
    background-image: linear-gradient(#ffffff, #ffffff) !important;  /* 그라데이션으로 배경 강제 */
    border-radius: 10px;
    padding: 1rem;  /* 1.5rem → 1rem으로 줄여서 이미지가 더 크게 보이도록 */
    border: 1px solid #f0f0f0;  /* 테두리 추가 */
    display: block;  /* 블록 요소로 명시 */
    position: relative;
}

/* 맞춤제작 이미지 특별 처리 - 흰색 배경 강제 */
.product-image-custom {
    background: #ffffff !important;
    background-color: #ffffff !important;
    background-image: none !important;
    box-shadow: inset 0 0 0 1000px #ffffff !important;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #111;
    white-space: nowrap;
}

.product-desc {
    margin-bottom: 1.5rem;  /* 설명과 특징 사이 간격 */
    color: #666;
    line-height: 1.6;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
    text-align: left;
}

.product-features li {
    padding: 0.6rem 0;
    color: #555;
    font-size: 0.95rem;
    line-height: 1.6;
    border-bottom: 1px solid #f0f0f0;
}

.product-features li:last-child {
    border-bottom: none;
}

.product-spec {
    background: rgba(37, 99, 235, 0.05);
    padding: 1rem;
    border-radius: 10px;
    font-size: 0.9rem;
    color: #666;
    line-height: 1.8;
}

.product-spec strong {
    color: #111;
}

.products-note {
    text-align: center;
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    border: 2px solid rgba(37, 99, 235, 0.1);
}

.products-note p {
    margin: 0.5rem 0;
    color: #666;
    font-size: 1rem;
    line-height: 1.8;
}

.products-note strong {
    color: #111;
}

/* ====================================
   Process Section
   ==================================== */

.process {
    padding: 120px 0;
}

.process-timeline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1000px;
    margin: 0 auto 2rem;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 2rem 1rem;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.process-step:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-cyan-light));
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0 auto 1rem;
}

.process-step h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: #111;
    white-space: nowrap;
}

.process-step p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.4;
    margin-bottom: 1rem;
    min-height: 2.8em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-time {
    display: inline-block;
    background: rgba(0, 217, 255, 0.15);
    color: #111;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 2px solid var(--primary-cyan);
}

.process-arrow {
    font-size: 2rem;
    color: #111;
    margin: 0 0.5rem;
}

.process-note {
    text-align: center;
    font-size: 1rem;
    color: #666;
}

/* ====================================
   Trust Section
   ==================================== */

.trust {
    padding: 120px 0;
    background: #f9f9f9;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.trust-card {
    background: #fff;
    padding: 3rem 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.trust-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.trust-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.trust-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #111;
    white-space: nowrap;
}

.trust-card p {
    color: #666;
    line-height: 1.8;
}

/* ====================================
   Partners Rolling Banner
   ==================================== */

.partners-banner {
    padding: 80px 0;
    background: #fff;
    overflow: hidden;
}

.partners-title {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 3rem;
}

.partners-marquee {
    overflow: hidden;
    position: relative;
    width: 100%;
}

.partners-track {
    display: flex;
    gap: 4rem;
    animation: scroll 30s linear infinite;
    width: fit-content;
}

.partner-item {
    flex-shrink: 0;
    width: 280px;
    height: 140px;
    background: #ffffff;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.partner-item img {
    max-width: 100%;
    height: 80px;
    width: auto;
    object-fit: contain;
    transition: all 0.3s ease;
}

.partner-item:hover img {
    transform: scale(1.1);
}

.partner-item:hover {
    transform: scale(1.05);
    border-color: var(--primary-cyan);
    box-shadow: 0 4px 15px var(--cyan-shadow);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Pause on hover */
.partners-marquee:hover .partners-track {
    animation-play-state: paused;
}

/* ====================================
   Portfolio Section
   ==================================== */

.portfolio {
    padding: 120px 0;
}

.blog-link {
    font-size: 1.05rem;
    color: #64748b;
    margin-top: 0.75rem;
}

.blog-link-text {
    color: #03c75a;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.blog-link-text:hover {
    color: #02a04a;
    text-decoration: underline;
}

.blog-link-text svg {
    transition: transform 0.3s ease;
}

.blog-link-text:hover svg {
    transform: translateY(-2px);
}

/* 포트폴리오 슬라이더 컨테이너 */
.portfolio-slider-container {
    position: relative;
    overflow: hidden;
    max-width: 100%;
    padding: 2rem 0;
}

.portfolio-grid {
    display: flex;
    gap: 2rem;
    animation: portfolioScroll 40s linear infinite;
    width: fit-content;
}

.portfolio-grid:hover {
    animation-play-state: paused;
}

@keyframes portfolioScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.portfolio-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    width: calc((100vw - 200px) / 4);
    min-width: 300px;
    max-width: 350px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.portfolio-image {
    background: #ffffff !important;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
}

.portfolio-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    z-index: 0;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #ffffff !important;
    position: relative;
    z-index: 1;
    padding: 1rem;
    /* Force white background for PNG transparency */
    image-rendering: auto;
    mix-blend-mode: normal;
}

.portfolio-placeholder {
    font-size: 3.5rem;
    position: relative;
    z-index: 1;
}

.portfolio-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.portfolio-tags {
    margin-bottom: 1rem;
}

.tag {
    display: inline-block;
    background: rgba(0, 217, 255, 0.15);
    color: #111;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 2px solid var(--primary-cyan);
}

.portfolio-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #111;
}

.portfolio-client {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: #111;
    height: 1.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.portfolio-product {
    font-size: 0.9rem;
    color: #333;
    margin-bottom: 0.4rem;
    font-weight: 600;
    height: 2.5rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.portfolio-quantity,
.portfolio-period {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

/* 새로운 포트폴리오 정보 스타일 */
.portfolio-specs {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 0.4rem;
    font-weight: 500;
}

.portfolio-usage {
    font-size: 0.85rem;
    color: #555;
    margin-bottom: 0.4rem;
}

.portfolio-size {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 0.8rem;
    font-family: 'Courier New', monospace;
}

.portfolio-spec {
    font-size: 0.9rem;
    color: #999;
    margin-bottom: 0.5rem;
}

.portfolio-info {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 1rem;
}

.portfolio-review {
    font-size: 0.85rem;
    color: #333;
    font-style: italic;
    line-height: 1.5;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid #f0f0f0;
    height: 4rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* ====================================
   Contact Section
   ==================================== */

.contact {
    padding: 120px 0;
    background: #f9f9f9;
}

.contact-box {
    max-width: 900px;
    margin: 0 auto 4rem;
    background: #fff;
    padding: 4rem;
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.contact-form {
    margin-bottom: 0;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.info-item {
    text-align: center;
    padding: 2rem;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.info-item strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: #111;
}

.info-item p {
    color: #666;
    line-height: 1.8;
}

.info-item a {
    color: #111;
    text-decoration: none;
    font-weight: 600;
}

.info-item a:hover {
    color: var(--primary-cyan);
    text-decoration: underline;
}

/* ====================================
   Privacy Consent Section
   ==================================== */

.privacy-consent-section {
    margin: 2rem 0;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
}

.privacy-consent-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
}

.privacy-checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    flex: 1;
}

.privacy-checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    cursor: pointer;
    accent-color: var(--primary-cyan);
}

.privacy-checkbox-text {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
}

.privacy-toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #fff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    color: #64748b;
    transition: all 0.3s ease;
}

.privacy-toggle-btn:hover {
    background: #f1f5f9;
    border-color: var(--primary-cyan);
    color: var(--primary-cyan);
}

.toggle-icon {
    transition: transform 0.3s ease;
}

.privacy-toggle-btn.active .toggle-icon {
    transform: rotate(180deg);
}

.privacy-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.privacy-content.active {
    max-height: 500px;
}

.privacy-scroll {
    max-height: 400px;
    overflow-y: auto;
    padding: 2rem;
    background: #fff;
}

.privacy-scroll::-webkit-scrollbar {
    width: 8px;
}

.privacy-scroll::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}

.privacy-scroll::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.privacy-scroll::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

.privacy-scroll h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.privacy-intro {
    font-size: 0.95rem;
    color: #475569;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.privacy-section {
    margin-bottom: 1.5rem;
}

.privacy-section h5 {
    font-size: 1rem;
    font-weight: 700;
    color: #334155;
    margin-bottom: 0.5rem;
}

.privacy-section p {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.8;
    padding-left: 1rem;
}

.privacy-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
    font-size: 0.9rem;
    color: #475569;
    font-weight: 600;
}

/* ====================================
   Final CTA Section
   ==================================== */

.final-cta {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-gray) 100%);
    color: #fff;
    text-align: center;
}

.final-cta h2 {
    font-size: 3.2rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.3;
    letter-spacing: -1px;
}

.final-cta p {
    font-size: 1.5rem;
    color: #ccc;
    margin-bottom: 4rem;
}

.final-cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ====================================
   FAQ Section
   ==================================== */

.faq-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.15);
    transform: translateY(-2px);
}

.faq-question {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.faq-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.faq-question h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.5;
}

.faq-answer {
    padding-left: 2.5rem;
}

.faq-answer p {
    font-size: 1.05rem;
    color: #475569;
    line-height: 1.8;
}

.faq-seo-keywords {
    text-align: center;
    margin-top: 4rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
}

.faq-seo-keywords p {
    font-size: 0.85rem;
    color: #64748b;
    line-height: 1.8;
}

/* ====================================
   Footer
   ==================================== */

.footer {
    background: #111;
    color: #999;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #333;
}

.footer-brand h3 {
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--primary-cyan);
    font-weight: 600;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-col h4 {
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-col p {
    line-height: 1.8;
    font-size: 0.9rem;
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 0.9rem;
}

.footer-copyright-warning {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 8px;
    font-size: 0.8rem !important;
    color: #ffc107 !important;
    line-height: 1.8;
}

/* ====================================
   Modal
   ==================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: #fff;
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.modal-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #111;
}

.modal-content p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
    margin-bottom: 2rem;
}

/* ====================================
   Animations
   ==================================== */

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

.fade-in {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

/* ====================================
   Responsive Design
   ==================================== */

@media (max-width: 1024px) {
    .solution-grid,
    .problem-grid,
    .trust-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .portfolio-card {
        width: calc((100vw - 120px) / 2);
        min-width: 250px;
        max-width: 300px;
    }

    .portfolio-grid {
        gap: 1.5rem;
        animation: portfolioScroll 30s linear infinite;
    }

    .process-timeline {
        flex-direction: column;
        gap: 1rem;
    }

    .process-arrow {
        transform: rotate(90deg);
        margin: 0.5rem 0;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

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

@media (max-width: 768px) {
    .header-content {
        justify-content: center;
        position: relative;
    }

    .logo {
        flex: 1;
        justify-content: center;
    }

    .logo-image {
        height: 105px;
    }

    .mobile-menu-toggle {
        position: absolute;
        right: 0;
    }

    .nav {
        display: none;
        position: fixed;
        top: 130px;
        left: 0;
        right: 0;
        background: #000000;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        z-index: 999;
    }

    .nav.active {
        display: flex;
    }

    .nav a {
        padding: 1rem;
        border-bottom: 1px solid #333;
        text-align: center;
        font-size: 1rem;
        color: #ffffff;
    }

    .nav a:last-child {
        border-bottom: none;
    }

    .header-cta {
        display: none;
    }

    .social-links {
        display: none;
    }

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

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2rem;
        line-height: 1.3;
        padding: 0 1rem;
        word-break: keep-all;
    }

    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.6;
        padding: 0 1rem;
        word-break: keep-all;
    }

    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }

    .banner-content {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0 1rem;
    }

    .banner-content h2 {
        font-size: 1.3rem;
        line-height: 1.4;
        word-break: keep-all;
    }

    .banner-content p {
        font-size: 0.9rem;
        line-height: 1.5;
        word-break: keep-all;
    }

    .banner-divider {
        display: none;
    }

    .portfolio-card {
        width: calc(100vw - 80px);
        min-width: 260px;
        max-width: 320px;
    }

    .portfolio-grid {
        gap: 1rem;
        animation: portfolioScroll 25s linear infinite;
    }

    .portfolio-image {
        height: 180px;
    }

    .portfolio-content {
        padding: 1.2rem;
    }

    .portfolio-client {
        font-size: 1.1rem;
    }

    .portfolio-product {
        font-size: 0.85rem;
        height: 2.4rem;
    }

    .portfolio-review {
        font-size: 0.8rem;
        height: 3.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .blog-link {
        font-size: 0.95rem;
    }

    .portfolio-grid {
        gap: 1rem;
    }

    .portfolio-card {
        min-width: 280px;
    }

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

    .contact-info {
        grid-template-columns: 1fr;
    }

    .privacy-consent-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .privacy-toggle-btn {
        width: 100%;
        justify-content: center;
    }

    .privacy-scroll {
        padding: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .final-cta h2 {
        font-size: 2rem;
    }

    .final-cta p {
        font-size: 1.1rem;
    }

    .final-cta-buttons {
        flex-direction: column;
    }

    .calculator-form {
        padding: 2rem;
    }

    .calculator-result {
        padding: 2rem;
    }

    .contact-box {
        padding: 2rem;
    }

    .faq-item {
        padding: 1.5rem;
    }

    .faq-question h3 {
        font-size: 1.1rem;
    }

    .faq-answer {
        padding-left: 2rem;
    }

    .faq-answer p {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .logo-image {
        height: 90px;
    }

    .hero {
        padding: 140px 0 60px;
        min-height: auto;
    }

    .hero-badge {
        font-size: 1rem !important;
        margin-bottom: 1rem !important;
    }

    .hero-title {
        font-size: 1.5rem !important;
        line-height: 1.5 !important;
        padding: 0 1rem !important;
        word-break: keep-all !important;
        margin-bottom: 1rem !important;
    }

    .hero-subtitle {
        font-size: 0.9rem !important;
        line-height: 1.7 !important;
        padding: 0 1rem !important;
        word-break: keep-all !important;
        margin-bottom: 2rem !important;
    }

    .highlight-text {
        font-size: 1rem !important;
    }

    .btn-primary.btn-large,
    .btn-secondary.btn-large,
    .btn-call-large {
        padding: 14px 28px;
        font-size: 1rem;
    }

    .container {
        padding: 0 15px !important;
    }

    .section-title {
        font-size: 1.5rem;
        line-height: 1.4;
        padding: 0 0.5rem;
        word-break: keep-all;
    }

    .section-subtitle {
        font-size: 0.95rem;
        line-height: 1.6;
        padding: 0 0.5rem;
        word-break: keep-all;
    }

    .blog-link {
        font-size: 0.9rem;
    }

    .banner-content h2 {
        font-size: 0.95rem !important;
        line-height: 1.6 !important;
        padding: 0 1rem !important;
        word-break: keep-all !important;
        max-width: 100% !important;
    }

    .banner-content p {
        font-size: 0.8rem !important;
        line-height: 1.7 !important;
        padding: 0 1rem !important;
        word-break: keep-all !important;
        max-width: 100% !important;
    }

    .hero-banner {
        padding: 1rem 0 !important;
        margin-top: 2rem !important;
    }

    .banner-item {
        font-size: 0.8rem !important;
        white-space: normal !important;
        text-align: center !important;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1.5rem !important;
        margin-top: 2rem !important;
    }

    .stat-number {
        font-size: 1.8rem !important;
    }

    .stat-label {
        font-size: 0.85rem !important;
    }

    .result-price .price {
        font-size: 2.5rem;
    }
    
    /* 박스 사이즈 가이드 - 모바일 */
    .box-size-guide {
        padding: 1rem;
        margin: 1rem 0;
    }
    
    .guide-title {
        font-size: 0.95rem;
    }
    
    .guide-image {
        padding: 0.5rem;
    }
    
    .guide-image img {
        max-height: 200px;
    }
    
    .guide-description {
        font-size: 0.85rem;
    }

    .faq-item {
        padding: 1.2rem;
    }

    .faq-question {
        gap: 0.75rem;
    }

    .faq-icon {
        font-size: 1.2rem;
    }

    .faq-question h3 {
        font-size: 1rem;
    }

    .faq-answer {
        padding-left: 1.7rem;
    }

    .faq-answer p {
        font-size: 0.9rem;
    }

    .faq-seo-keywords p {
        font-size: 0.75rem;
    }

    .footer-copyright-warning {
        padding: 1rem;
        font-size: 0.7rem !important;
    }
}