@import url('https://fonts.googleapis.com/css2?family=Nanum+Gothic:wght@700;800&display=swap');

:root {
    --bg-gradient: linear-gradient(to top, #f3e7e9 0%, #e3eeff 100%);
    --container-bg: rgba(255, 255, 255, 0.8);
    --text-color: #333;
    --btn-bg: linear-gradient(145deg, #6e8efb, #a777e3);
    --btn-shadow: rgba(110, 142, 251, 0.4);
    --toggle-btn-bg: #fff;
    --toggle-btn-text: #333;
    --input-bg: #fff;
    --input-border: #ddd;
}

body.dark-mode {
    --bg-gradient: linear-gradient(to top, #0f2027 0%, #203a43 50%, #2c5364 100%);
    --container-bg: rgba(30, 30, 30, 0.85);
    --text-color: #f0f0f0;
    --btn-bg: linear-gradient(145deg, #43e97b, #38f9d7);
    --btn-shadow: rgba(67, 233, 123, 0.4);
    --toggle-btn-bg: #333;
    --toggle-btn-text: #fff;
    --input-bg: #444;
    --input-border: #555;
}

body {
    background: var(--bg-gradient);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    font-family: 'Nanum Gothic', sans-serif;
    transition: background 0.3s ease;
    box-sizing: border-box;
}

.theme-toggle {
    margin-bottom: 20px;
}

#theme-btn {
    padding: 10px 20px;
    border-radius: 20px;
    border: none;
    background-color: var(--toggle-btn-bg);
    color: var(--toggle-btn-text);
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    font-weight: bold;
    transition: all 0.3s ease;
}

.container {
    background-color: var(--container-bg);
    padding: 30px 40px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: background-color 0.3s ease;
    width: 100%;
    max-width: 500px;
    margin-bottom: 30px;
}

h1 {
    font-size: 2.5em;
    color: var(--text-color);
    text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 25px;
    transition: color 0.3s ease;
}

.lotto-numbers {
    display: flex;
    flex-wrap: wrap; 
    justify-content: center;
    margin-bottom: 30px;
}

#generator-btn {
    padding: 15px 35px;
    font-size: 1.2em;
    font-weight: 700;
    cursor: pointer;
    color: white;
    background: var(--btn-bg);
    border: none;
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--btn-shadow);
    transition: all 0.2s ease-in-out;
}

#generator-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--btn-shadow);
}

#generator-btn:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px var(--btn-shadow);
}

/* Partnership Form Styles */
.form-container {
    background-color: var(--container-bg);
    padding: 30px 40px;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    backdrop-filter: blur(10px);
    width: 100%;
    max-width: 500px;
    transition: background-color 0.3s ease;
}

.form-container h2 {
    color: var(--text-color);
    margin-bottom: 20px;
}

.form-group {
    text-align: left;
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-color);
    font-weight: bold;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-color);
    font-family: inherit;
    box-sizing: border-box;
    font-size: 1em;
}

.submit-btn {
    width: 100%;
    padding: 12px;
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    color: white;
    background: var(--btn-bg);
    border: none;
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--btn-shadow);
    transition: all 0.2s ease-in-out;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--btn-shadow);
}