:root {
    --bg-color: #f0f2f5;
    --container-bg: #ffffff;
    --text-color: #333333;
    --text-muted: #666666;
    --accent-color: #fbc400;
    --accent-dark: #c89c00;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --nav-bg: rgba(255, 255, 255, 0.8);
    --bg-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'%3E%3Cpath fill='%23cccccc' fill-opacity='0.4' d='M1 3h1v1H1V3zm2-2h1v1H3V1z'%3E%3C/path%3E%3C/svg%3E");
}

[data-theme='dark'] {
    --bg-color: #1a1a1a;
    --container-bg: #2c2c2c;
    --text-color: #ffffff;
    --text-muted: #cccccc;
    --accent-color: #fbc400;
    --accent-dark: #c89c00;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --nav-bg: rgba(26, 26, 26, 0.8);
    --bg-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'%3E%3Cpath fill='%23333333' fill-opacity='0.4' d='M1 3h1v1H1V3zm2-2h1v1H3V1z'%3E%3C/path%3E%3C/svg%3E");
}

* {
    scroll-behavior: smooth;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--bg-color);
    background-image: var(--bg-pattern);
    color: var(--text-color);
    margin: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
    line-height: 1.6;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--shadow-color);
    padding: 10px 0;
}

.nav-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-size: 1.5em;
    font-weight: bold;
    color: var(--accent-color);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Main Layout */
.main-wrapper {
    padding-top: 100px;
    padding-bottom: 60px;
    display: flex;
    justify-content: center;
}

.container {
    background: var(--container-bg);
    padding: 40px 50px;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-color);
    text-align: center;
    width: 90%;
    max-width: 800px;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* Theme Toggle inside Nav */
.navbar .theme-toggle {
    background: none;
    border: none;
    font-size: 1.2em;
    cursor: pointer;
    padding: 5px;
    box-shadow: none;
}

/* Header */
header h1 {
    font-size: 2.5em;
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--accent-color);
    margin: 0;
}

header p {
    font-size: 1.1em;
    color: var(--text-muted);
    margin-top: 10px;
}

/* Sections */
.content-section {
    margin-top: 60px;
    text-align: left;
    padding: 20px;
    background: var(--bg-color);
    border-radius: 15px;
}

.content-section h2 {
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
    margin-bottom: 15px;
}

/* Buttons */
#generate-btn {
    background: linear-gradient(145deg, var(--accent-color), var(--accent-dark));
    color: #2c2c2c;
    border: none;
    padding: 15px 35px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.2em;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 5px 15px rgba(251, 196, 0, 0.4);
    transition: all 0.3s ease;
    margin: 20px 0;
}

#generate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(251, 196, 0, 0.6);
}

/* Inquiry Section */
.inquiry-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--shadow-color);
    text-align: left;
}

.inquiry-section h2 {
    color: var(--accent-color);
    text-align: center;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--shadow-color);
    background: var(--bg-color);
    color: var(--text-color);
}

.submit-btn {
    width: 100%;
    padding: 15px;
    border-radius: 10px;
    border: none;
    background: var(--accent-color);
    color: #2c2c2c;
    font-weight: bold;
    cursor: pointer;
}

/* Footer */
.footer {
    padding: 40px 20px;
    text-align: center;
    background: var(--container-bg);
    border-top: 1px solid var(--shadow-color);
}

.footer-links {
    margin-top: 10px;
}

.footer-links a {
    margin: 0 10px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9em;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
}

.modal-content {
    background-color: var(--container-bg);
    margin: 10% auto;
    padding: 30px;
    border-radius: 20px;
    width: 80%;
    max-width: 600px;
    position: relative;
}

.close {
    position: absolute;
    right: 20px;
    top: 10px;
    font-size: 28px;
    cursor: pointer;
}

@media (max-width: 600px) {
    .nav-links {
        display: none;
    }
    .container {
        padding: 20px;
    }
}