:root {
    /* Brand Colors derived from Logo */
    --primary-orange: #F37021;
    /* Solar Orange from logo text */
    --secondary-blue: #326295;
    /* Deep Blue from logo arc */

    /* Layout Colors */
    --bg-light: #FFFFFF;
    /* Clean White */
    --bg-off-white: #F9FAFB;
    /* Cool Gray/White for sections */

    --text-dark: #222222;
    --text-light: #555555;
    --white: #FFFFFF;

    /* Functional Colors */
    --link-color: var(--secondary-blue);
    --badge-bg: var(--secondary-blue);
    --badge-text: #ffffff;
    --highlight: #FFF3E0;
    /* Light Orange highlight */
    --spacing-unit: 1rem;
}

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

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
}

strong {
    font-weight: 700;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

/* Header */
.header {
    background-color: var(--white);
    padding: 1rem 0;
    border-bottom: 1px solid #eaeaea;
    box-shadow: none;
    /* Cleaner look */
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    display: block;
    /* Height is set inline or here, max-height ensures it fits */
    max-height: 50px;
    width: auto;
}

.nav a {
    text-decoration: none;
    color: var(--text-dark);
    margin-left: 2rem;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

.nav .btn-consult {
    background-color: var(--primary-orange);
    color: var(--white);
    padding: 0.6rem 1.8rem;
    border-radius: 30px;
    /* More modern rounded button */
    transition: all 0.3s;
    font-weight: 600;
    box-shadow: 0 4px 6px rgba(243, 112, 33, 0.2);
}

.nav .btn-consult:hover {
    background-color: #d65a10;
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(243, 112, 33, 0.3);
    color: var(--white);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--secondary-blue) 0%, #1a3c5e 100%);
    /* Deep Blue Gradient */
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    word-break: keep-all;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    color: #cbd5e0;
}

/* Common Section */
.section {
    padding: 5rem 0;
    background-color: var(--bg-off-white);
}

.section-title {
    color: var(--text-dark);
    font-size: 2rem;
    margin-bottom: 3rem;
    padding-bottom: 1rem;
    border-bottom: 3px solid var(--primary-orange);
    /* Orange underline */
    display: inline-block;
}

/* Overview */
.overview-section .card {
    font-size: 1.1rem;
    border-left: 5px solid var(--primary-orange);
    /* Orange accent */
    background-color: var(--white);
}

.highlight-text {
    background-color: #ffe0b2;
    /* Soft Orange Highlight */
    padding: 0 4px;
    font-weight: 700;
}

/* Cards */
.card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    /* Modern shadow */
    margin-bottom: 0;
    height: 100%;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #f0f0f0;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* Grid Layout */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2rem;
}

/* Type Cards */
.type-card {
    display: flex;
    flex-direction: column;
}

.card-image-wrapper {
    width: 100%;
    margin-bottom: 1.5rem;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.card-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.type-card:hover .card-img {
    transform: scale(1.08);
    /* Zoom effect on hover */
}

.type-header {
    margin-bottom: 1.5rem;
}

.type-badge {
    background-color: var(--primary-orange);
    /* Orange Badges */
    color: var(--white);
    padding: 0.3rem 0.9rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 0.8rem;
    letter-spacing: 0.5px;
}

.type-header h4 {
    font-size: 1.5rem;
    color: var(--text-dark);
    font-weight: 700;
}

.type-header small {
    display: block;
    color: var(--secondary-blue);
    /* Blue sub-heading */
    font-size: 1rem;
    margin-top: 0.4rem;
    font-weight: 500;
}

.description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    background-color: #ffffcd;
    /* Very light yellow/warm bg */
    background-color: #FFF8E1;
    /* Warm Amber/Orange tint */
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.feature-list li {
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.feature-list li:last-child {
    margin-bottom: 0;
}

.solution {
    color: var(--primary-orange);
    font-weight: 700;
}

.case-study {
    border-top: 1px solid #eee;
    padding-top: 1rem;
    font-size: 0.95rem;
    color: var(--text-dark);
    background-color: #fafafa;
    padding: 1rem;
    border-radius: 6px;
    margin-top: auto;
}

.case-study strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--secondary-blue);
}

/* Strategy Section */
.strategy-list {
    list-style: none;
    margin-top: 1.5rem;
}

.strategy-list li {
    margin-bottom: 1.5rem;
    padding-left: 1rem;
    border-left: 4px solid var(--secondary-blue);
}

.strategy-list strong {
    font-size: 1.2rem;
    display: block;
    margin-bottom: 0.5rem;
    color: var(--secondary-blue);
}

/* Footer */
.footer {
    background-color: #e9ecef;
    padding: 3rem 0;
    text-align: center;
    color: var(--text-light);
    margin-top: auto;
    font-size: 0.9rem;
}

@media (max-width: 768px) {

    /* Layout */
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .container {
        padding: 0 1.25rem;
        /* Slightly more side padding */
    }

    /* Header Mobile */
    .header .container {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .nav {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 1rem;
        flex-wrap: wrap;
        /* Prevent overflow if text is long */
    }

    .nav a {
        margin-left: 0;
        /* Reset margins for flex gap */
        margin: 0 0.5rem;
        font-size: 0.9rem;
    }

    .nav .btn-consult {
        padding: 0.5rem 1.2rem;
        font-size: 0.9rem;
    }

    /* Hero Mobile */
    .hero {
        padding: 3rem 0;
    }

    .hero h2 {
        font-size: 1.8rem;
        line-height: 1.3;
        margin-bottom: 0.8rem;
    }

    .hero p {
        font-size: 1rem;
        padding: 0 1rem;
    }

    /* Section & Cards Mobile */
    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }

    .card {
        padding: 1.5rem;
        /* Reduce padding on mobile */
    }

    .type-header h4 {
        font-size: 1.3rem;
    }

    .type-card:hover .card-img {
        transform: none;
        /* Disable zoom on touch devices to prevent awkwardness */
    }
}