/* Korean font */
@font-face {
    font-family: 'Typo Dodam M';
    src: url('../font/Typo_Dodam_M.ttf') format('truetype');
}

:root {
    --primary-color: #0f4c75;
    /* Deep Ocean Blue */
    --secondary-color: #3282b8;
    /* Lighter Blue */
    --accent-color: #ffa500;
    /* Sunset Orange/Gold */
    --text-color: #333;
    --bg-color: #f4f7f6;
    --white: #ffffff;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --font-main: 'Typo Dodam M', sans-serif;

    --navigation-height: 60px;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 10px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    /* max-width: 1200px; */
    /* margin: 0 auto; */

    /* default for large screen */
    display: grid;
    grid-template-columns: 250px 1fr;

    /* display: flex;
    justify-content: space-between;
    align-items: center; */
}

/* .header-content .menu-toggle {
    display: none;
} */

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 100px;
    width: auto;
}

.logo-text {
    display: block;
    text-align: center;
}

.brand-name {
    /* Korean font */
    font-family: "Noto Serif KR", serif;
    font-style: normal;
    font-size: 1.5rem;
    color: black;
    text-decoration: none;
}

/* Navigation */

nav {
    display: flex;
    justify-content: right;
    /* align to the right */
    align-items: center;
    /* vertically center */
    flex-wrap: nowrap;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 0;
    align-items: center;
}

nav ul li {
    display: flex;
    align-items: center;
}

nav ul li:not(:last-child)::after {
    content: "";
    height: 14px;
    width: 1px;
    background-color: var(--accent-color);
    margin: 0 1rem;
}

nav button {
    background: none;
    border: none;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

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

nav button::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

nav button:hover::after,
nav button.active::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--primary-color);
    padding: 0 10px;
}

/* Main Content */
main {
    flex: 1;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
    width: 100%;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Section (Home) */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(rgba(15, 76, 117, 0.8), rgba(15, 76, 117, 0.8)), url('https://images.unsplash.com/photo-1506748686214-e9df14d4d9d0?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    /* Placeholder BG */
    background-size: cover;
    background-position: center;
    color: var(--white);
    border-radius: 15px;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--accent-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 165, 0, 0.4);
}

/* Service Cards */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
}

.card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.card p {
    color: #666;
    margin-bottom: 1rem;
}

/* Package Details */
.package-list {
    list-style: none;
}

.package-item {
    background: var(--white);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.package-icon {
    font-size: 2rem;
    color: var(--accent-color);
}

/* Contact Form */
.contact-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: var(--font-main);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 2rem;
    margin-top: auto;
}

/* Responsive, for smaller screen */
@media (max-width: 768px) {

    .header-content {
        grid-template-columns: 1fr fit-content(var(--navigation-height));
    }

    .menu-toggle {
        display: block;
    }

    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: var(--shadow);
        padding: 1rem;
        text-align: center;
    }

    nav ul.show {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }
}