/* =============================================
   AKETING - Professional Clean Design
   깔끔한 블랙 & 화이트 전문 디자인 시스템
   Version: v36-professional-redesign
   ============================================= */

:root {
    /* Colors */
    --black: #000000;
    --white: #FFFFFF;
    --gray-50: #FAFAFA;
    --gray-100: #F5F5F5;
    --gray-200: #EEEEEE;
    --gray-300: #E0E0E0;
    --gray-400: #BDBDBD;
    --gray-600: #757575;
    --gray-900: #212121;
    
    /* Typography */
    --font-primary: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* =============================================
   Global Reset
   ============================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--white);
    color: var(--black);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: 80px; /* Space for fixed nav */
}

/* =============================================
   Navigation
   ============================================= */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
    z-index: 1000;
}

.nav-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 900;
    color: var(--black);
    text-decoration: none;
    letter-spacing: -0.5px;
}

/* Hamburger Menu */
.hamburger-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger-btn span {
    width: 24px;
    height: 2px;
    background: var(--black);
    transition: var(--transition);
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-item {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-actions {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-icon {
    color: var(--black);
    font-size: 18px;
    text-decoration: none;
    transition: var(--transition);
}

.nav-icon:hover {
    opacity: 0.6;
}

.nav-icon.download {
    width: 36px;
    height: 36px;
    background: var(--black);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.nav-icon.download:hover {
    opacity: 0.8;
}

/* =============================================
   Hero Section
   ============================================= */
.hero {
    padding: 100px 0 80px;
    background: var(--white);
    text-align: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--black);
    letter-spacing: -1px;
}

.hero-desc {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.btn {
    padding: 16px 32px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    display: inline-block;
}

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

.btn-black:hover {
    background: var(--gray-900);
}

.btn-outline {
    background: transparent;
    color: var(--black);
    border: 2px solid var(--black);
}

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

/* =============================================
   Sections
   ============================================= */
.section {
    padding: 80px 0;
}

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

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 32px;
    font-weight: 900;
    color: var(--black);
    letter-spacing: -0.5px;
}

.link-arrow {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

.link-arrow:hover {
    color: var(--black);
}

.text-center {
    text-align: center;
    margin-top: 40px;
}

/* =============================================
   Grid System
   ============================================= */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

/* =============================================
   Project Cards
   ============================================= */
.card {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

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

.card-image {
    width: 100%;
    height: 240px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--gray-400);
    letter-spacing: 1px;
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--black);
    padding: 24px 24px 8px;
}

.card-category {
    font-size: 14px;
    color: var(--gray-600);
    padding: 0 24px 24px;
}

/* =============================================
   Service Cards
   ============================================= */
.service-card {
    text-align: center;
    padding: 40px 24px;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--black);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
}

.service-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 12px;
}

.service-desc {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.8;
}

/* =============================================
   Footer
   ============================================= */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    font-size: 24px;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.footer-tagline {
    font-size: 14px;
    color: var(--gray-400);
    line-height: 1.8;
}

.footer-heading {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--gray-900);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--gray-600);
}

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

/* Tablet */
@media (max-width: 1024px) {
    .nav-wrapper {
        padding: 20px 30px;
    }
    
    .nav-menu {
        gap: 30px;
    }
    
    .container {
        padding: 0 30px;
    }
    
    .hero {
        padding: 140px 0 80px;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-wrapper {
        padding: 12px 15px;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .hamburger-btn {
        display: flex;
    }
    
    .logo {
        font-size: 18px;
        margin: 0 auto;
    }
    
    .nav-menu {
        display: none;
        order: 3;
        width: 100%;
        flex-direction: column;
        padding: 20px 0;
        gap: 16px;
        border-top: 1px solid var(--gray-200);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-item {
        font-size: 16px;
        text-align: center;
        padding: 12px 0;
    }
    
    .nav-actions {
        gap: 12px;
        margin-left: auto;
    }
    
    .nav-icon {
        font-size: 16px;
    }
    
    .nav-icon.download {
        width: 32px;
        height: 32px;
        font-size: 12px;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-desc {
        font-size: 16px;
        margin-bottom: 32px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 32px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .card-image {
        height: 200px;
    }
    
    .service-icon {
        width: 64px;
        height: 64px;
        font-size: 28px;
    }
    
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .logo {
        font-size: 20px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-desc {
        font-size: 14px;
    }
    
    .section-title {
        font-size: 20px;
    }
    
    .btn {
        padding: 14px 24px;
        font-size: 14px;
    }
}

.prod-img {
  width: 100%;
  height: auto !important;
  object-fit: contain !important;
  border-radius: 12px;
  display: block;
  background: #f9f9f9;
}