:root {
    --primary-blue: #0ea5e9;
    --sky-blue: #e0f2fe;
    --dark-blue: #0369a1;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --bg-white: #ffffff;
    --shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans KR', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: #f0f9ff;
    color: var(--text-dark);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.navbar {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    color: var(--primary-blue);
    font-weight: 900;
    font-size: 1.7rem;
    letter-spacing: -1px;
}

.navbar nav a {
    text-decoration: none;
    color: var(--text-dark);
    margin-left: 20px;
    font-weight: 700;
    font-size: 1.05rem;
    transition: color 0.3s;
}

.navbar nav a:hover, .navbar nav a.active {
    color: var(--primary-blue);
}

/* Page Header for subpages */
.page-header {
    margin-top: 70px;
    background: linear-gradient(135deg, rgba(3, 105, 161, 0.9), rgba(14, 165, 233, 0.8));
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h2 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 15px;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.3);
}

.page-header p {
    font-size: 1.2rem;
    font-weight: 500;
}

/* Hero Section */
.hero {
    background-image: url('images/1.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-top: 70px; /* offset header */
    height: 60vh;
    min-height: 400px;
}

.fullscreen-hero {
    height: calc(100vh - 70px);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Changed to neutral dark overlay to keep original image colors while maintaining text legibility */
    background: rgba(0, 0, 0, 0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: white;
    padding: 20px;
    animation: fadeInUp 1s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.hero-content h2 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 15px;
    letter-spacing: -2px;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.3rem;
    font-weight: 500;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.3);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-btn {
    display: inline-block;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s;
    background: white;
    color: var(--primary-blue);
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.2);
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -3px rgba(0,0,0,0.3);
}

.hero-btn.outline {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.hero-btn.outline:hover {
    background: white;
    color: var(--primary-blue);
}

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



/* Sections */
.section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    color: var(--dark-blue);
    margin-bottom: 40px;
    font-weight: 900;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-blue);
    margin: 15px auto 0;
    border-radius: 2px;
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

/* Product Card */
.product-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 30px rgba(0,0,0,0.12);
}

.product-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-bottom: 1px solid #f1f5f9;
}

.product-info {
    padding: 25px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.product-desc {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 20px;
    flex-grow: 1;
}

.product-price {
    font-weight: 900;
    color: white;
    background-color: var(--primary-blue);
    padding: 8px 15px;
    border-radius: 8px;
    text-align: center;
    font-size: 1rem;
    display: inline-block;
    align-self: flex-start;
}

/* Portfolio Card */
.portfolio-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 30px rgba(0,0,0,0.15);
}

.portfolio-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 4px solid var(--primary-blue);
}

.portfolio-info {
    padding: 20px;
}

.portfolio-category {
    font-size: 0.8rem;
    font-weight: 900;
    color: var(--primary-blue);
    margin-bottom: 5px;
    text-transform: uppercase;
}

.portfolio-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
    line-height: 1.4;
}

.portfolio-date {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 15px;
}

.portfolio-desc {
    font-size: 0.95rem;
    color: var(--text-dark);
    line-height: 1.5;
    background: #f8fafc;
    padding: 15px;
    border-radius: 8px;
    border-left: 3px solid var(--primary-blue);
}

/* Previews View All Button */
.center-btn-container {
    text-align: center;
    margin-top: 40px;
}

.view-all-btn {
    display: inline-block;
    background: var(--dark-blue);
    color: white;
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.3s, transform 0.2s;
    box-shadow: 0 4px 6px -1px rgba(3, 105, 161, 0.3);
}

.view-all-btn:hover {
    background: var(--primary-blue);
    transform: translateY(-2px);
}

/* About Section */
.about-section {
    padding: 80px 0;
}

.about-flex {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

@media (min-width: 900px) {
    .about-flex {
        flex-direction: row;
        align-items: center;
    }
}

.about-image-wrapper {
    flex: 1;
}

.about-image {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    object-fit: cover;
    height: 100%;
    max-height: 500px;
}

.about-text-wrapper {
    flex: 1;
}

.about-title {
    font-size: 2rem;
    font-weight: 900;
    color: var(--dark-blue);
    margin-bottom: 20px;
    line-height: 1.3;
}

.about-desc {
    font-size: 1.05rem;
    color: var(--text-dark);
    margin-bottom: 30px;
}

.about-credentials {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.cred-item {
    display: flex;
    align-items: center;
    background: white;
    padding: 15px 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-blue);
}

.cred-icon {
    font-size: 2rem;
    margin-right: 20px;
}

.cred-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.cred-info p {
    font-size: 0.9rem;
    color: var(--text-light);
}



.qualifications {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.badge {
    display: block;
    background: var(--sky-blue);
    color: var(--dark-blue);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    text-align: center;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.contact-info {
    text-align: center;
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--dark-blue);
    margin-bottom: 20px;
    line-height: 1.4;
}

.btn-group {
    display: flex;
    gap: 10px;
}

.call-btn {
    flex: 1;
    display: block;
    background: var(--primary-blue);
    color: white;
    text-align: center;
    padding: 12px 10px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: background 0.3s, transform 0.2s;
    box-shadow: 0 4px 6px -1px rgba(14, 165, 233, 0.3);
}

.call-btn.outline {
    background: white;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    padding: 10px;
}

.call-btn:hover {
    background: var(--dark-blue);
    color: white;
    transform: translateY(-2px);
}

.kakao-btn {
    display: block;
    background: #FEE500;
    color: #191919;
    text-align: center;
    padding: 12px 10px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 800;
    font-size: 0.95rem;
    transition: background 0.3s, transform 0.2s;
    box-shadow: 0 4px 6px -1px rgba(254, 229, 0, 0.4);
    margin-top: 10px;
}

.kakao-btn:hover {
    background: #f4dc00;
    transform: translateY(-2px);
}


/* Footer */
footer {
    background: #0f172a;
    color: var(--text-light);
    text-align: center;
    padding: 40px 0;
    margin-top: 80px;
    font-size: 0.9rem;
}

/* Premium Footer Business Card */
.premium-business-card {
    background: #0f172a;
    background-image: linear-gradient(145deg, #090e17 0%, #1e293b 100%);
    padding: 80px 20px;
    color: white;
    text-align: center;
    border-top: 3px solid #d4af37; /* Gold accent */
}

.pbc-content {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 50px 30px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    backdrop-filter: blur(10px);
}

.pbc-logo {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 25px;
    letter-spacing: 2px;
    color: #f8fafc;
}

.pbc-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
}

.pbc-badge {
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid #d4af37;
    color: #fef08a; /* Soft gold text */
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.pbc-contacts {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}

.pbc-contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pbc-name {
    font-size: 1.1rem;
    color: #94a3b8;
    margin-bottom: 8px;
    font-weight: 500;
}

.pbc-phone {
    font-size: 2rem;
    font-weight: 900;
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.pbc-phone:hover {
    color: #d4af37;
}

.pbc-divider {
    width: 2px;
    height: 60px;
    background: rgba(255,255,255,0.15);
}

/* Footer override to blend with premium card if directly above it */
.premium-business-card + footer {
    margin-top: 0;
    background: #090e17; /* match premium dark bg */
}

/* Floating Actions */
.floating-menu-container {
    position: fixed;
    right: 25px;
    bottom: 25px;
    z-index: 1000;
}

.floating-actions-row {
    display: flex;
    align-items: flex-end;
    gap: 15px;
}

.floating-call-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    position: relative;
    gap: 0;
}

/* Floating Call Menu */
.floating-call-options {
    position: absolute;
    bottom: calc(100% + 15px);
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    white-space: nowrap;
}

/* Navigation Blog Button */
.nav-blog-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #03c75a;
    color: white !important;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.95rem !important;
    transition: background 0.3s, transform 0.2s;
    margin-left: 15px;
    box-shadow: 0 4px 6px -1px rgba(3, 199, 90, 0.3);
}

.nav-blog-btn:hover {
    background: #02a148;
    transform: translateY(-2px);
    color: white !important;
}

.nav-blog-btn .blog-n {
    font-size: 1.2rem;
    font-weight: 900;
    font-family: Arial, Helvetica, sans-serif;
}

.floating-call-options.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.floating-call-option {
    background: white;
    color: var(--primary-blue);
    padding: 12px 20px;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    border: 2px solid var(--primary-blue);
    transition: background 0.3s, color 0.3s;
}

.floating-call-option:hover {
    background: var(--primary-blue);
    color: white;
}

.floating-call-btn {
    border: none;
    cursor: pointer;
    padding: 0 25px;
    height: 65px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    border-radius: 35px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s;
}

.floating-call-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    /* Navbar Mobile Fix */
    .navbar .container {
        flex-direction: column;
        justify-content: center;
        height: auto;
        padding: 12px 15px;
        gap: 12px;
    }
    .logo {
        font-size: 1.5rem;
    }
    .navbar nav {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        width: 100%;
        gap: 15px;
    }
    .navbar nav a {
        margin-left: 0;
        font-size: 0.95rem;
    }
    
    /* Offset for taller mobile navbar */
    .hero {
        margin-top: 90px; 
    }
    .page-header {
        margin-top: 90px;
        padding: 40px 15px;
    }
    .page-header h2 {
        font-size: 1.8rem;
        word-break: keep-all;
    }

    /* Hero Section Mobile Fix */
    .hero-content {
        padding: 0 15px;
    }
    .hero-content h2 {
        font-size: 1.7rem;
        line-height: 1.35;
        word-break: keep-all;
        margin-bottom: 15px;
    }
    .hero-content p {
        font-size: 1rem;
        line-height: 1.5;
        word-break: keep-all;
        margin-bottom: 25px;
    }
    .hero-content br {
        display: none; /* Let text wrap naturally */
    }
    .hero-buttons {
        flex-direction: column;
        gap: 10px;
        align-items: center;
        margin-top: 20px !important;
    }
    .hero-btn {
        width: 100%;
        max-width: 280px;
        padding: 14px 20px;
        font-size: 1rem;
    }

    /* Sections Mobile Fix */
    .section {
        padding: 45px 0;
    }
    .section-title {
        font-size: 1.6rem;
        margin-bottom: 30px;
        word-break: keep-all;
    }
    .grid {
        gap: 20px;
        grid-template-columns: 1fr;
    }

    /* Premium Business Card Mobile Fix */
    .pbc-content {
        padding: 35px 20px;
    }
    .pbc-logo {
        font-size: 1.8rem;
        margin-bottom: 20px;
    }
    .pbc-badges {
        gap: 10px;
    }
    .pbc-badge {
        font-size: 0.85rem;
        padding: 8px 14px;
        word-break: keep-all;
    }
    .pbc-contacts {
        flex-direction: column;
        gap: 15px;
    }
    .pbc-divider {
        width: 60px;
        height: 2px;
    }
    .pbc-phone {
        font-size: 1.5rem;
    }
    
    /* Floating Menu Mobile */
    .floating-menu-container {
        right: 15px;
        bottom: 15px;
    }
    .floating-actions-row {
        gap: 10px;
    }
    .floating-call-options {
        bottom: calc(100% + 10px);
    }
    .nav-blog-btn {
        margin-left: 0;
        margin-top: 5px;
    }
    .floating-call-option {
        font-size: 0.95rem;
        padding: 10px 15px;
    }
    .floating-call-btn {
        height: 55px;
        padding: 0 20px;
        font-size: 1.1rem;
        border-radius: 28px;
    }
}