/* =============================================
   아이템두잇 (ITEM DO IT) - B2B Seller Platform
   Color: Black / Navy / White
   Tone: Trust · Clean · Professional
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    /* Primary - Black */
    --black: #000000;
    --black-soft: #0a0a0a;
    --black-light: #141414;
    
    /* Secondary - Navy */
    --navy-dark: #0d1b2a;
    --navy: #1b263b;
    --navy-light: #415a77;
    --navy-lighter: #778da9;
    
    /* Neutral */
    --gray-900: #111111;
    --gray-800: #1f1f1f;
    --gray-700: #333333;
    --gray-600: #555555;
    --gray-500: #777777;
    --gray-400: #999999;
    --gray-300: #bbbbbb;
    --gray-200: #e0e0e0;
    --gray-100: #f2f2f2;
    --gray-50: #fafafa;
    
    /* White */
    --white: #ffffff;
    --white-soft: #fcfcfc;
    
    /* Accent */
    --accent: #2563eb;
    --accent-light: #3b82f6;
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);
    
    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --duration: 200ms;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
}

/* =============================================
   Reset & Base
   ============================================= */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 400;
    line-height: 1.7;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--black);
    letter-spacing: -0.02em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--duration) var(--ease);
}

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

/* =============================================
   Layout
   ============================================= */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-lg {
    max-width: 1400px;
}

section {
    padding: 5rem 0;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    transition: all var(--duration) var(--ease);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 85px;
}

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

.logo-img {
    height: 60px;
    width: auto;
    vertical-align: middle;
}

.logo-mark {
    width: 36px;
    height: 36px;
    background: var(--black);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text .ko {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--black);
}

.logo-text .en {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.6875rem;
    color: var(--gray-500);
    letter-spacing: 0.05em;
}

.nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    border-radius: var(--radius-md);
    transition: all var(--duration) var(--ease);
}

.nav-link:hover,
.nav-link.active {
    color: var(--black);
    background: var(--gray-100);
}

.nav-cta {
    margin-left: 1rem;
}

.mobile-toggle {
    display: none;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--black);
    margin: 4px 0;
    transition: all var(--duration) var(--ease);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration) var(--ease);
    white-space: nowrap;
}

.btn-primary {
    background: var(--black);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--gray-800);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--black);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--black);
}

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.3);
}

.btn-outline-white:hover {
    background: var(--white);
    color: var(--black);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-naver {
    background: #03c75a;
    color: var(--white);
}

.btn-naver:hover {
    background: #02b350;
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--black);
    overflow: hidden;
    padding-top: 72px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(27, 38, 59, 0.8) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(65, 90, 119, 0.4) 0%, transparent 50%),
        var(--black);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 80px 80px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 100px;
    margin-bottom: 1.5rem;
}

.hero-badge span {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--gray-300);
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero h1 {
    font-size: 3.25rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: -0.03em;
}

.hero h1 .highlight {
    color: var(--navy-lighter);
}

.hero-desc {
    font-size: 1.125rem;
    color: var(--gray-400);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    white-space: pre-line;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-features {
    display: flex;
    gap: 2rem;
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.hero-feature i {
    font-size: 1.25rem;
    color: var(--navy-lighter);
}

.hero-feature span {
    font-size: 0.9375rem;
    color: var(--gray-300);
}

/* =============================================
   Section Headers
   ============================================= */

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-label {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.section-title {
    margin-bottom: 0.75rem;
}

.section-desc {
    font-size: 1.0625rem;
    color: var(--gray-500);
    max-width: 560px;
    margin: 0 auto;
}

/* =============================================
   Categories Section
   ============================================= */

.categories-section {
    background: var(--gray-50);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

.category-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all var(--duration) var(--ease);
    cursor: pointer;
}

.category-card:hover {
    border-color: var(--black);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    margin: 0 auto 1rem;
    font-size: 1.375rem;
    color: var(--gray-600);
    transition: all var(--duration) var(--ease);
}

.category-card:hover .category-icon {
    background: var(--black);
    color: var(--white);
}

.category-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.category-card p {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

/* =============================================
   Strength Section
   ============================================= */

.strength-section {
    background: var(--navy-dark);
    position: relative;
    overflow: hidden;
}

.strength-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(119, 141, 169, 0.1) 100%);
}

.strength-section .section-label {
    background: rgba(255,255,255,0.1);
    color: var(--gray-300);
}

.strength-section .section-title {
    color: var(--white);
}

.strength-section .section-desc {
    color: var(--gray-400);
}

.strength-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 2;
}

.strength-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    transition: all var(--duration) var(--ease);
}

.strength-card:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.15);
    transform: translateY(-4px);
}

.strength-num {
    font-family: 'Outfit', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: var(--navy-lighter);
    line-height: 1;
    margin-bottom: 1.5rem;
}

.strength-card h3 {
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.strength-card p {
    font-size: 0.9375rem;
    color: var(--gray-400);
    margin-bottom: 0;
    line-height: 1.7;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--duration) var(--ease);
}

.product-card:hover {
    border-color: var(--gray-400);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.product-image {
    position: relative;
    aspect-ratio: 1;
    background: var(--gray-100);
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s var(--ease);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-badges {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    display: flex;
    gap: 0.375rem;
}

.badge {
    padding: 0.25rem 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.badge-new {
    background: var(--black);
    color: var(--white);
}

.badge-featured {
    background: var(--navy);
    color: var(--white);
}

.product-content {
    padding: 1.25rem;
}

.product-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    margin-bottom: 0.375rem;
}

.product-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.product-card h3 a:hover {
    color: var(--navy);
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
    border-top: 1px solid var(--gray-100);
    margin-top: 0.75rem;
}

.product-moq {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.product-moq strong {
    color: var(--black);
}

.product-link {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--black);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.product-link i {
    transition: transform var(--duration) var(--ease);
}

.product-card:hover .product-link i {
    transform: translateX(3px);
}

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

.cta-section {
    background: var(--black);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(65, 90, 119, 0.3) 0%, transparent 70%);
}

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

.cta-content h2 {
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-content p {
    color: var(--gray-400);
    font-size: 1.0625rem;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.cta-contact {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.cta-contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-400);
}

.cta-contact-item i {
    color: var(--navy-lighter);
}

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

.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand .logo-mark {
    background: var(--gray-700);
}

.footer-brand .logo-text .ko {
    color: var(--white);
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-top: 1rem;
}

.footer h4 {
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.625rem;
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--gray-400);
    transition: color var(--duration) var(--ease);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    margin-bottom: 0.625rem;
}

.footer-contact i {
    color: var(--gray-500);
    width: 14px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--gray-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.footer-notice {
    font-size: 0.8125rem;
    color: var(--gray-500);
    background: var(--gray-800);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

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

.page-header {
    background: var(--black);
    padding: 8rem 0 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 50% 0%, rgba(65, 90, 119, 0.3) 0%, transparent 50%);
}

.page-header-content {
    position: relative;
    z-index: 2;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.breadcrumb a {
    color: var(--gray-500);
}

.breadcrumb a:hover {
    color: var(--white);
}

.breadcrumb span {
    color: var(--gray-600);
}

.page-header h1 {
    color: var(--white);
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
}

.page-header p {
    color: var(--gray-400);
    font-size: 1.0625rem;
}

/* =============================================
   About Page
   ============================================= */

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    background: var(--gray-100);
    border-radius: var(--radius-xl);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image-placeholder {
    text-align: center;
    color: var(--gray-400);
}

.about-image-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-content p {
    font-size: 1.0625rem;
    margin-bottom: 1.25rem;
}

.about-highlight {
    background: var(--gray-50);
    border-left: 4px solid var(--black);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.about-highlight p {
    font-size: 1rem;
    font-weight: 500;
    color: var(--black);
    margin-bottom: 0;
}

.target-section {
    background: var(--gray-50);
}

.target-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.target-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all var(--duration) var(--ease);
}

.target-card:hover {
    border-color: var(--black);
    transform: translateY(-4px);
}

.target-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: 50%;
    margin: 0 auto 1.25rem;
    font-size: 1.5rem;
    color: var(--gray-600);
}

.target-card:hover .target-icon {
    background: var(--black);
    color: var(--white);
}

.target-card h4 {
    font-size: 1.0625rem;
    margin-bottom: 0.5rem;
}

.target-card p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

.criteria-section {
    background: var(--navy-dark);
}

.criteria-section .section-label {
    background: rgba(255,255,255,0.1);
    color: var(--gray-300);
}

.criteria-section .section-title {
    color: var(--white);
}

.criteria-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.criteria-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.criteria-check {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--success);
    border-radius: 50%;
    color: var(--white);
    font-size: 0.875rem;
    flex-shrink: 0;
}

.criteria-text h4 {
    color: var(--white);
    font-size: 1.0625rem;
    margin-bottom: 0.375rem;
}

.criteria-text p {
    color: var(--gray-400);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

/* =============================================
   Items Page
   ============================================= */

.items-section {
    padding-top: 2rem;
}

.filter-bar {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.filter-btn {
    padding: 0.625rem 1.25rem;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 100px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--duration) var(--ease);
}

.filter-btn:hover {
    border-color: var(--black);
    color: var(--black);
}

.filter-btn.active {
    background: var(--black);
    border-color: var(--black);
    color: var(--white);
}

.items-count {
    font-size: 0.9375rem;
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

.items-count strong {
    color: var(--black);
}

/* =============================================
   Item Detail Page
   ============================================= */

.item-detail-section {
    padding-top: 6rem;
    padding-bottom: 4rem;
}

.item-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.item-gallery {
    position: sticky;
    top: 100px;
}

.item-main-image {
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    aspect-ratio: 1;
    overflow: hidden;
    margin-bottom: 1rem;
}

.item-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.item-main-image .placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 4rem;
}

.item-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.item-thumb {
    background: var(--gray-100);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    aspect-ratio: 1;
    cursor: pointer;
    overflow: hidden;
    transition: border-color var(--duration) var(--ease);
}

.item-thumb:hover,
.item-thumb.active {
    border-color: var(--black);
}

.item-info h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.item-code {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

.item-desc {
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.item-specs h3 {
    font-size: 1.0625rem;
    margin-bottom: 1rem;
}

.specs-table {
    width: 100%;
    margin-bottom: 2rem;
}

.specs-table tr {
    border-bottom: 1px solid var(--gray-200);
}

.specs-table th,
.specs-table td {
    padding: 0.875rem 0;
    font-size: 0.9375rem;
    text-align: left;
}

.specs-table th {
    width: 120px;
    font-weight: 600;
    color: var(--gray-600);
}

.specs-table td {
    color: var(--black);
}

.color-chips {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.color-chip {
    padding: 0.25rem 0.75rem;
    background: var(--gray-100);
    border-radius: 100px;
    font-size: 0.8125rem;
    color: var(--gray-700);
}

.item-order-info {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.order-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-200);
}

.order-row:last-child {
    border-bottom: none;
}

.order-label {
    font-weight: 600;
    color: var(--gray-600);
}

.order-value {
    color: var(--black);
}

.item-usage {
    margin-bottom: 2rem;
}

.item-usage h3 {
    font-size: 1.0625rem;
    margin-bottom: 0.75rem;
}

.item-usage p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 0;
}

.seller-tip {
    background: var(--navy-dark);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.seller-tip h4 {
    color: var(--navy-lighter);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.seller-tip p {
    color: var(--gray-300);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

.item-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.naver-notice {
    text-align: center;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.naver-notice a {
    color: #03c75a;
    font-weight: 600;
}

/* =============================================
   Process Page
   ============================================= */

.process-steps {
    max-width: 800px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.process-step::before {
    content: '';
    position: absolute;
    left: 27px;
    top: 60px;
    bottom: -3rem;
    width: 2px;
    background: var(--gray-200);
}

.process-step:last-child::before {
    display: none;
}

.step-num {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--black);
    color: var(--white);
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.step-content {
    flex: 1;
    padding-top: 0.75rem;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.step-content p {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.step-details {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
}

.step-details li {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 0.375rem;
    padding-left: 1rem;
    position: relative;
}

.step-details li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--gray-400);
}

.notice-section {
    background: var(--gray-50);
}

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

.notice-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.notice-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.notice-card h4 i {
    color: var(--navy);
}

.notice-card p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 0;
}

/* =============================================
   Inquiry Page
   ============================================= */

.inquiry-section {
    padding: 4rem 0;
}

.inquiry-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
}

.inquiry-form-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
}

.inquiry-form-card h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.inquiry-form-card > p {
    color: var(--gray-500);
    margin-bottom: 2rem;
}

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

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-group label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: inherit;
    font-size: 1rem;
    color: var(--black);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--duration) var(--ease);
}

.form-control:focus {
    outline: none;
    border-color: var(--black);
    box-shadow: 0 0 0 3px rgba(0,0,0,0.05);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

.inquiry-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-card {
    background: var(--black);
    border-radius: var(--radius-xl);
    padding: 2rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.sidebar-card h3 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.contact-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.contact-row:last-child {
    border-bottom: none;
}

.contact-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--navy-lighter);
}

.contact-info {
    flex: 1;
}

.contact-info span {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 0.125rem;
}

.contact-info strong {
    font-size: 1rem;
    color: var(--white);
}

.benefits-card {
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    padding: 2rem;
}

.benefits-card h4 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.benefit-row {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.benefit-row i {
    color: var(--success);
    margin-top: 0.25rem;
}

.benefit-row span {
    font-size: 0.9375rem;
    color: var(--gray-600);
}

/* =============================================
   Flash Messages
   ============================================= */

.flash-container {
    position: fixed;
    top: 90px;
    right: 20px;
    z-index: 9999;
    max-width: 400px;
}

.flash-msg {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s var(--ease);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.flash-success {
    background: var(--success);
    color: var(--white);
}

.flash-error {
    background: var(--danger);
    color: var(--white);
}

/* =============================================
   Admin Styles
   ============================================= */

.admin-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
}

.admin-login-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 3rem;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.admin-login-card h1 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.admin-header {
    background: var(--black);
    color: var(--white);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    font-size: 1.125rem;
    color: var(--white);
}

.admin-layout {
    display: flex;
    min-height: calc(100vh - 60px);
}

.admin-sidebar {
    width: 240px;
    background: var(--gray-900);
    padding: 1.5rem 0;
}

.admin-nav {
    list-style: none;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    color: var(--gray-400);
    font-size: 0.9375rem;
    transition: all var(--duration) var(--ease);
}

.admin-nav a:hover,
.admin-nav a.active {
    color: var(--white);
    background: rgba(255,255,255,0.05);
}

.admin-nav a i {
    width: 20px;
}

.admin-content {
    flex: 1;
    background: var(--gray-100);
    padding: 2rem;
}

.admin-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
}

.stat-card i {
    font-size: 2rem;
    color: var(--gray-400);
    margin-bottom: 0.75rem;
}

.stat-card .number {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--black);
}

.stat-card .label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.admin-table th {
    font-weight: 600;
    color: var(--gray-600);
    font-size: 0.875rem;
}

.admin-table td {
    font-size: 0.9375rem;
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-new {
    background: #fef3c7;
    color: #92400e;
}

.status-in_progress {
    background: #dbeafe;
    color: #1e40af;
}

.status-completed {
    background: #d1fae5;
    color: #065f46;
}

.type-badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.type-wholesale {
    background: #e0e7ff;
    color: #3730a3;
}

.type-purchasing {
    background: #fce7f3;
    color: #9d174d;
}

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

/* 초기 상태 - 숨김 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 순차적 딜레이 */
.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }

/* Fade in only */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease;
}

.fade-in.animated {
    opacity: 1;
}

/* Scale up */
.scale-up {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.scale-up.animated {
    opacity: 1;
    transform: scale(1);
}

/* =============================================
   Enhanced Hover Effects
   ============================================= */

/* 제품 카드 호버 강화 */
.item-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.item-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.item-card:hover .item-image img {
    transform: scale(1.05);
}

.item-image {
    overflow: hidden;
}

.item-image img {
    transition: transform 0.5s ease;
}

/* 카테고리 카드 호버 */
.category-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

/* 강점 카드 호버 */
.strength-card {
    transition: transform 0.3s ease, background 0.3s ease;
}

.strength-card:hover {
    transform: translateY(-5px);
    background: rgba(255,255,255,0.08);
}

/* 버튼 호버 강화 */
.btn {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* =============================================
   Counter Animation
   ============================================= */

.counter-number {
    display: inline-block;
    font-weight: 700;
    font-family: var(--font-en);
}

/* =============================================
   Smooth Section Transitions
   ============================================= */

section {
    position: relative;
}

/* Hero 배경 그라디언트 애니메이션 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #000000 0%, #1b263b 50%, #000000 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    z-index: 0;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

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

.floating-buttons {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.floating-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    transition: all var(--duration) var(--ease);
    position: relative;
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.floating-btn i {
    font-size: 1.375rem;
}

.floating-label {
    position: absolute;
    right: 68px;
    background: var(--gray-900);
    color: var(--white);
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all var(--duration) var(--ease);
}

.floating-btn:hover .floating-label {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.floating-label::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--gray-900);
}

.kakao-btn {
    background: #FEE500;
    color: #3C1E1E;
}

.kakao-btn:hover {
    background: #F5DC00;
}

.inquiry-btn {
    background: var(--black);
    color: var(--white);
}

.inquiry-btn:hover {
    background: var(--gray-800);
}

/* Kakao specific button style */
.btn-kakao {
    background: #FEE500;
    color: #3C1E1E;
    font-weight: 600;
}

.btn-kakao:hover {
    background: #F5DC00;
    transform: translateY(-1px);
}

.btn-kakao svg {
    width: 20px;
    height: 20px;
    margin-right: 0.5rem;
}

@media (max-width: 768px) {
    .floating-buttons {
        bottom: 16px;
        right: 16px;
    }
    
    .floating-btn {
        width: 52px;
        height: 52px;
    }
    
    .floating-label {
        display: none;
    }
    
    .logo-img {
        height: 55px;
    }
}

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

@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .strength-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .about-intro {
        grid-template-columns: 1fr;
    }
    
    .item-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .item-gallery {
        position: relative;
        top: 0;
    }
    
    .inquiry-grid {
        grid-template-columns: 1fr;
    }
    
    .inquiry-sidebar {
        position: relative;
        top: 0;
    }
}

@media (max-width: 768px) {
    section {
        padding: 3.5rem 0;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .header-inner {
        height: 64px;
    }
    
    .nav {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        gap: 0;
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav-cta {
        margin-left: 0;
        margin-top: 1rem;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero {
        min-height: auto;
        padding: 7rem 0 4rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-desc {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .strength-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .target-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .criteria-list {
        grid-template-columns: 1fr;
    }
    
    .notice-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-contact {
        flex-direction: column;
        gap: 1rem;
    }
    
    .page-header {
        padding: 7rem 0 2.5rem;
    }
    
    .filter-bar {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .target-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
}

/* =============================================
   Purchasing Page (구매대행)
   ============================================= */

.platform-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.platform-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.platform-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

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

.platform-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--black);
}

.platform-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.5;
}

.pricing-info {
    max-width: 600px;
    margin: 2rem auto 0;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--black);
}

.pricing-detail {
    background: var(--gray-100);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.pricing-detail p {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.pricing-detail p:last-child {
    margin-bottom: 0;
}

.highlight-text {
    color: var(--navy);
    font-weight: 700;
    font-size: 1.3rem;
}

.pricing-note {
    list-style: none;
    padding: 0;
}

.pricing-note li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray-600);
}

.pricing-note li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--navy);
    font-weight: 700;
}

.pricing-disclaimer {
    text-align: center;
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-top: 1.5rem;
}

.bg-gray {
    background: var(--gray-100);
}

.section {
    padding: 5rem 0;
}

@media (max-width: 1024px) {
    .platform-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .platform-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card {
        padding: 1.5rem;
    }
}

/* =============================================
   Inquiry Type Buttons
   ============================================= */

.inquiry-type-btns {
    display: flex;
    gap: 1rem;
}

.type-btn {
    flex: 1;
    cursor: pointer;
}

.type-btn input {
    display: none;
}

.type-btn span {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--gray-600);
    transition: all 0.2s ease;
}

.type-btn:hover span {
    border-color: var(--navy);
    color: var(--navy);
}

.type-btn input:checked + span {
    border-color: var(--navy);
    background: var(--navy);
    color: var(--white);
}

@media (max-width: 480px) {
    .inquiry-type-btns {
        flex-direction: column;
    }
}

.purchasing-fields {
    background: #fef3c7;
    border: 1px solid #fcd34d;
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1rem;
}