:root {
    --primary-color: #0052FF;
    --primary-color-dark: #003DD1;
    --primary-light: #EBF2FF;
    --secondary-color: #0f172a;
    --accent-teal: #00C48C;
    --accent-cyan: #00d2ff;
    --accent-orange: #FF6B00;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --bg-color: #ffffff;
    --bg-light: #f8fafc;
    --bg-dark: #0b0f19;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 30px rgba(0, 82, 255, 0.25);
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-sm: 8px;
    --border-radius: 14px;
    --border-radius-lg: 20px;
}

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

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

body {
    font-family: 'Pretendard', 'Inter', 'Noto Sans KR', sans-serif;
    color: var(--text-main);
    line-height: 1.65;
    background-color: var(--bg-color);
    overflow-x: hidden;
    word-break: keep-all;
}

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

ul {
    list-style: none;
}

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

/* ==========================================================================
   Top Announcement Bar (Free Support Benefit Banner)
   ========================================================================== */
.top-banner {
    background: linear-gradient(90deg, #003dd1 0%, #0052ff 50%, #00a8ff 100%);
    color: #ffffff;
    padding: 9px 16px;
    font-size: 0.88rem;
    font-weight: 600;
    text-align: center;
    position: relative;
    z-index: 1001;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.2px;
}

.top-banner .badge {
    background-color: #ffd200;
    color: #0b0f19;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    animation: pulse 2s infinite;
}

.top-banner a {
    color: #ffffff;
    text-decoration: underline;
    margin-left: 6px;
    font-weight: 700;
}

.top-banner a:hover {
    color: #ffe600;
}

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

/* Layout Utilities */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 90px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 30px;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}

.section-header p {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 680px;
    margin: 0 auto;
}

.bg-light {
    background-color: var(--bg-light);
}

.bg-dark {
    background-color: var(--secondary-color);
    color: var(--white);
}

/* Typography & Effects */
.text-gradient {
    background: linear-gradient(135deg, #0052FF 0%, #00c6ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-cisco {
    background: linear-gradient(135deg, #005073 0%, #1ebfae 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-gold {
    background: linear-gradient(135deg, #FF9900 0%, #FF5E3A 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.98rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
    outline: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(0, 82, 255, 0.28);
}

.btn-primary:hover {
    background-color: var(--primary-color-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 82, 255, 0.4);
    color: var(--white);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.12);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}

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

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

.btn-primary-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-success {
    background-color: var(--accent-teal);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(0, 196, 140, 0.3);
}

.btn-success:hover {
    background-color: #00aa79;
    transform: translateY(-2px);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.88rem;
    border-radius: 8px;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
    border-radius: 12px;
}

/* ==========================================================================
   Navbar
   ========================================================================== */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    height: 76px;
    background-color: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.navbar.scrolled {
    height: 68px;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--secondary-color);
}

.logo img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-main);
    position: relative;
    padding: 6px 0;
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.nav-badge {
    background: #ff4757;
    color: #fff;
    font-size: 0.68rem;
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: 700;
    margin-left: 4px;
    vertical-align: top;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2.5px;
    background-color: var(--secondary-color);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    min-height: 82vh;
    display: flex;
    align-items: center;
    background-color: #0b1120;
    color: var(--white);
    overflow: hidden;
    padding: 80px 0;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.45;
}

.glow-1 {
    top: -15%;
    left: -10%;
    width: 600px;
    height: 600px;
    background-color: rgba(0, 82, 255, 0.45);
    animation: float 10s ease-in-out infinite;
}

.glow-2 {
    bottom: -15%;
    right: -10%;
    width: 550px;
    height: 550px;
    background-color: rgba(0, 210, 255, 0.35);
    animation: float 12s ease-in-out infinite reverse;
}

@keyframes float {
    0% { transform: translateY(0) scale(1); }
    50% { transform: translateY(24px) scale(1.06); }
    100% { transform: translateY(0) scale(1); }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    z-index: 2;
}

.hero-container {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 960px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #7dd3fc;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 3.4rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 22px;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.2rem;
    color: #94a3b8;
    margin-bottom: 38px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

/* Hero Key Metric Badges */
.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 36px;
    text-align: left;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.hero-feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(0, 82, 255, 0.2);
    border: 1px solid rgba(0, 82, 255, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #60a5fa;
    flex-shrink: 0;
}

.hero-feature-text h4 {
    font-size: 0.98rem;
    font-weight: 700;
    color: #f1f5f9;
}

.hero-feature-text p {
    font-size: 0.82rem;
    color: #94a3b8;
    margin: 0;
}

/* ==========================================================================
   Value Proposition Banner (무상 지원 4대 혜택)
   ========================================================================== */
.benefit-section {
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
    border-bottom: 1px solid var(--border-color);
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.benefit-card {
    background: var(--white);
    border: 1px solid #dbeafe;
    border-radius: var(--border-radius);
    padding: 32px 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: #93c5fd;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
}

.benefit-icon {
    font-size: 2.2rem;
    margin-bottom: 16px;
    display: inline-block;
}

.benefit-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.benefit-card p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.benefit-badge {
    display: inline-block;
    background: #e0f2fe;
    color: #0369a1;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    margin-top: 12px;
}

/* ==========================================================================
   Page Headers (Common for sub-pages)
   ========================================================================== */
.page-header {
    padding: 90px 0 50px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}

.page-header p {
    font-size: 1.18rem;
    color: #cbd5e1;
    max-width: 720px;
    margin: 0 auto;
}

.page-header-cisco {
    background: linear-gradient(135deg, #002c3d 0%, #004b6e 100%);
}

.page-header-omada {
    background: linear-gradient(135deg, #0b1f3a 0%, #0c3b6d 100%);
}

/* ==========================================================================
   E-Commerce Store Styles (TP-Link Omada Instant Buy)
   ========================================================================== */
.store-notice-bar {
    background-color: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: var(--border-radius);
    padding: 16px 24px;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.store-notice-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.store-notice-icon {
    font-size: 1.6rem;
}

.store-notice-text h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #1e40af;
}

/* Category Filter Tabs */
.category-tabs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.category-tab-btn {
    padding: 11px 22px;
    border-radius: 30px;
    border: 1px solid #cbd5e1;
    background: #ffffff;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-sm);
}

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

.category-tab-btn.active {
    background: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 14px rgba(0, 82, 255, 0.35);
}

.category-tab-count {
    font-size: 0.78rem;
    padding: 2px 8px;
    border-radius: 12px;
    background: #f1f5f9;
    color: var(--text-muted);
}

.category-tab-btn.active .category-tab-count {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.product-card.hidden {
    display: none !important;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.product-tag-free-support {
    position: absolute;
    top: 14px;
    left: 14px;
    background: #0052FF;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    z-index: 2;
    box-shadow: 0 2px 8px rgba(0, 82, 255, 0.4);
}

.product-image-wrap {
    height: 220px;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    overflow: hidden;
    position: relative;
}

.product-image-wrap img {
    max-height: 170px;
    object-fit: contain;
    transition: var(--transition);
}

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

.product-info {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-brand {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.product-name {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 12px;
}

.product-specs {
    margin-bottom: 20px;
    flex-grow: 1;
}

.product-specs ul {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.product-specs li {
    margin-bottom: 6px;
    position: relative;
    padding-left: 14px;
}

.product-specs li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Pricing and Order Section in Product Card */
.product-price-box {
    background: #f8fafc;
    border-radius: 8px;
    padding: 12px 14px;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.price-label {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.product-price {
    font-size: 1.35rem;
    font-weight: 800;
    color: #0f172a;
}

.product-price-tax {
    font-size: 0.75rem;
    color: #94a3b8;
    font-weight: normal;
    margin-left: 4px;
}

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

.qty-selector {
    display: flex;
    align-items: center;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
    width: 96px;
    flex-shrink: 0;
}

.qty-btn {
    width: 30px;
    height: 38px;
    background: #f1f5f9;
    border: none;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-btn:hover {
    background: #e2e8f0;
}

.qty-input {
    width: 36px;
    height: 38px;
    border: none;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
}

.btn-buy-now {
    flex-grow: 1;
    padding: 10px 14px;
    font-size: 0.92rem;
    font-weight: 700;
}

/* ==========================================================================
   Cisco Enterprise Quotation Cards
   ========================================================================== */
.cisco-card {
    border-top: 4px solid #005073;
}

.cisco-badge {
    background: #005073;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 12px;
}

.cisco-spec-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 12px 0 18px;
}

.cisco-tag {
    background: #f1f5f9;
    color: #475569;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
}

/* ==========================================================================
   SD-WAN Solution Showcase Page Styles
   ========================================================================== */
.sdwan-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 70px;
}

.sdwan-box {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 40px 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.sdwan-box.omada-box {
    border-top: 5px solid #0052FF;
}

.sdwan-box.cisco-box {
    border-top: 5px solid #005073;
}

.sdwan-box-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.sdwan-logo-icon {
    font-size: 2.2rem;
}

.sdwan-box-header h3 {
    font-size: 1.6rem;
    font-weight: 800;
}

.sdwan-feature-list {
    margin: 24px 0 32px;
}

.sdwan-feature-list li {
    padding: 10px 0;
    border-bottom: 1px dashed #e2e8f0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
}

.sdwan-feature-list li:last-child {
    border-bottom: none;
}

.check-icon {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.1rem;
}

/* SD-WAN Comparison Matrix Table */
.comparison-table-wrap {
    overflow-x: auto;
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin: 40px 0;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.comparison-table th,
.comparison-table td {
    padding: 16px 20px;
    border-bottom: 1px solid #e2e8f0;
    font-size: 0.95rem;
}

.comparison-table th {
    background: #f8fafc;
    font-weight: 700;
    color: var(--secondary-color);
}

.comparison-table tr:hover {
    background: #f1f5f9;
}

/* ==========================================================================
   Company Profile (About Us) & CCIE Engineer Section
   ========================================================================== */
.profile-hero {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 60px;
}

.profile-text h2 {
    font-size: 2.3rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 20px;
    line-height: 1.35;
}

.profile-text p {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 18px;
    line-height: 1.75;
}

.ccie-card {
    background: linear-gradient(135deg, #0b1727 0%, #1e293b 100%);
    color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ccie-badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(90deg, #d97706 0%, #f59e0b 100%);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 800;
    margin-bottom: 18px;
}

.ccie-card h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.ccie-card p {
    font-size: 0.92rem;
    color: #cbd5e1;
    line-height: 1.65;
    margin-bottom: 20px;
}

.ccie-number {
    font-family: 'Inter', monospace;
    font-size: 1.4rem;
    font-weight: 800;
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.1);
    padding: 6px 14px;
    border-radius: 8px;
    display: inline-block;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

/* Company Timeline / Stats */
.company-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin: 48px 0;
}

.stat-item {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    text-align: center;
}

.stat-number {
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 6px;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* ==========================================================================
   Modals (Order Modal, Quote Modal, Image Modal)
   ========================================================================== */
.modal-overlay {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(6px);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
    animation: fadeIn 0.25s forwards;
}

.modal-window {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 36px;
    max-width: 540px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: zoomIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--secondary-color);
}

.modal-header {
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 6px;
}

.modal-header p {
    font-size: 0.92rem;
    color: var(--text-muted);
}

/* Form Styles */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--secondary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 82, 255, 0.15);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Order Summary Box inside Order Modal */
.order-summary-box {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
}

.order-item-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.92rem;
    margin-bottom: 6px;
}

.order-total-row {
    display: flex;
    justify-content: space-between;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary-color);
    border-top: 1px solid #cbd5e1;
    padding-top: 10px;
    margin-top: 8px;
}

.free-support-notice-card {
    background: #eff6ff;
    border: 1px dashed #93c5fd;
    border-radius: 8px;
    padding: 12px 14px;
    font-size: 0.85rem;
    color: #1e40af;
    margin-bottom: 20px;
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

/* ==========================================================================
   Floating Quick Action Buttons & Kakao/Call
   ========================================================================== */
.floating-actions {
    position: fixed;
    bottom: 28px;
    right: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.fab-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: var(--transition);
    color: #fff;
    font-size: 1.3rem;
    border: none;
    position: relative;
}

.fab-btn:hover {
    transform: scale(1.1);
}

.fab-kakao {
    background-color: #FEE500;
    color: #191919;
}

.fab-call {
    background-color: #0052FF;
}

.fab-top {
    background-color: #1e293b;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.fab-top.show {
    opacity: 1;
    pointer-events: auto;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10001;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: #0f172a;
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 0.92rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideUp 0.3s ease forwards;
    pointer-events: auto;
}

.toast-success {
    background: #065f46;
    border: 1px solid #10b981;
}

/* ==========================================================================
   Partners & Footer
   ========================================================================== */
.partners-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.p-logo {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.p-logo:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.p-name {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.p-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.footer {
    background-color: #0b0f19;
    color: #94a3b8;
    padding: 80px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand .footer-logo {
    height: 48px;
    width: auto;
    margin-bottom: 16px;
    border-radius: 8px;
}

.footer-desc {
    font-size: 0.92rem;
    line-height: 1.7;
    color: #64748b;
    margin-bottom: 20px;
}

.footer-contact h4,
.footer-links h4 {
    font-size: 1.1rem;
    color: #f1f5f9;
    margin-bottom: 20px;
    font-weight: 700;
}

.footer-contact p {
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.footer-contact strong {
    color: #cbd5e1;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #94a3b8;
    font-size: 0.92rem;
}

.footer-links a:hover {
    color: #ffffff;
    padding-left: 4px;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    font-size: 0.85rem;
    color: #475569;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }

/* Responsive Media Queries */
@media (max-width: 992px) {
    .hero h1 { font-size: 2.7rem; }
    .sdwan-intro-grid { grid-template-columns: 1fr; }
    .profile-hero { grid-template-columns: 1fr; }
    .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        padding: 24px;
        box-shadow: var(--shadow-md);
        gap: 16px;
    }
    .mobile-menu-btn { display: flex; }
    .hero h1 { font-size: 2.2rem; }
    .hero p { font-size: 1rem; }
    .section { padding: 60px 0; }
    .products-grid { grid-template-columns: 1fr; }
    .footer-container { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
}