:root {
    --primary: #FFB7B2; --secondary: #FFDAC1; --accent: #B2CEFE;
    --bg: #FFF9F9; --card: #FFFFFF; --text: #4A4A4A;
    --input-bg: #FFFFFF; --input-border: var(--secondary);
    --header-bg: #FFFFFF; --shadow: rgba(255, 183, 178, 0.15);
}

[data-theme="dark"] {
    --bg: #1A1A1A; --card: #2D2D2D; --text: #F0F0F0;
    --input-bg: #3D3D3D; --input-border: #4D4D4D;
    --header-bg: #252525; --shadow: rgba(0, 0, 0, 0.3);
    --secondary: #5D4D4D; --accent: #4D5D7D;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--bg); color: var(--text);
    margin: 0; padding: 0; display: flex; flex-direction: column; align-items: center; min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

header {
    width: 100%; padding: 15px 0; text-align: center; background: var(--header-bg);
    border-bottom: 1px solid var(--secondary); margin-bottom: 20px;
    position: relative; transition: background-color 0.3s;
}
.header-controls {
    position: absolute; right: 15px; top: 50%; transform: translateY(-50%);
    display: flex; align-items: center; gap: 10px;
}
.theme-toggle {
    background: none; border: none; font-size: 1.2rem; cursor: pointer; padding: 5px;
    width: auto; border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.lang-toggle { display: flex; gap: 5px; }
.lang-btn {
    background: var(--input-bg); border: 1px solid var(--input-border); padding: 4px 8px; border-radius: 6px;
    font-size: 0.7rem; cursor: pointer; color: var(--text); transition: 0.3s;
    width: auto;
}
.lang-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

.logo { 
    font-family: 'Jua', sans-serif; 
    font-size: 1.8rem; font-weight: normal; color: var(--primary); letter-spacing: 0.5px; 
}

.container { width: 95%; max-width: 480px; padding-bottom: 40px; flex: 1; }

.main-card {
    background: var(--card); padding: 30px; border-radius: 25px;
    box-shadow: 0 10px 30px var(--shadow); margin-bottom: 25px;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.summary-card {
    background: #FFF0F0; padding: 20px; border-radius: 15px; margin: 20px 0;
    text-align: left; border-left: 5px solid var(--primary); font-size: 0.95rem;
    line-height: 1.6; color: #555;
}
[data-theme="dark"] .summary-card { background: #3D3535; color: #EEE; }
.summary-card h4 { margin-top: 0; color: var(--primary); font-size: 1rem; margin-bottom: 10px; }

.input-group { margin-bottom: 25px; text-align: left; }
label { display: block; font-size: 0.85rem; color: var(--text); opacity: 0.7; margin-bottom: 8px; margin-left: 5px; }

input[type="text"], input[type="date"] {
    width: 100%; padding: 16px; border: 1.5px solid var(--input-border);
    border-radius: 15px; font-size: 1rem; box-sizing: border-box; outline: none;
    background-color: var(--input-bg); color: var(--text); transition: 0.3s;
}

button {
    background: var(--primary); color: white; border: none; padding: 18px;
    width: 100%; border-radius: 15px; font-weight: bold; font-size: 1.1rem; 
    cursor: pointer; transition: 0.3s;
}
button:hover { background: #FF9E99; transform: translateY(-2px); }

#resultArea { display: none; animation: fadeIn 0.6s ease; }

.status-badge {
    display: inline-block; padding: 6px 18px; border-radius: 20px;
    color: white; font-size: 0.9rem; font-weight: bold; margin-bottom: 15px;
}

.week-number { font-size: 2.8rem; font-weight: 900; color: var(--primary); margin: 5px 0; }

.progress-container {
    width: 100%; height: 10px; background-color: #f0f0f0; border-radius: 10px;
    margin: 25px 0 10px 0; overflow: hidden;
}
.progress-bar {
    height: 100%; background: linear-gradient(90deg, var(--secondary), var(--primary));
    width: 0%; transition: width 1.2s ease-in-out;
}

.task-item {
    background: #fff; padding: 22px; border-radius: 20px; margin-bottom: 20px;
    border: 1px solid #f3f3f3; text-align: left;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    transition: background-color 0.3s, border-color 0.3s;
}
[data-theme="dark"] .task-item { background: var(--card); border-color: var(--input-border); }

.task-label { font-size: 0.75rem; color: var(--primary); font-weight: bold; margin-bottom: 5px; display: block; }
.task-text { font-weight: bold; margin-bottom: 10px; font-size: 1.1rem; color: #333; }
[data-theme="dark"] .task-text { color: var(--text); }

.task-tip { 
    font-size: 0.88rem; color: #666; line-height: 1.6; margin-bottom: 18px; 
    background: #fdf5f5; padding: 12px; border-radius: 12px; border-left: 4px solid var(--primary);
    transition: background-color 0.3s;
}
[data-theme="dark"] .task-tip { background: var(--bg); color: var(--text); opacity: 0.9; }

.btn-search {
    display: inline-block; width: 48%; padding: 12px 0; font-size: 0.8rem; border-radius: 10px; 
    border: 1px solid var(--input-border); text-align: center; text-decoration: none; 
    color: var(--text); font-weight: bold; background: var(--input-bg);
}

.medical-disclaimer {
    margin-top: 15px; padding: 20px; font-size: 0.7rem; color: #999;
    line-height: 1.3; border-top: 1px solid #f0f0f0; word-break: keep-all; text-align: center;
}

footer {
    width: 100%; padding: 30px 0; text-align: center; font-size: 0.8rem; color: #999;
    background: var(--header-bg); border-top: 1px solid var(--secondary); margin-top: auto;
}
.footer-links a { color: var(--primary); text-decoration: none; margin: 0 5px; }

/* Modal */
.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.5); }
.modal-content { background-color: var(--card); margin: 15% auto; padding: 30px; border-radius: 20px; width: 80%; max-width: 400px; position: relative; }
.close { position: absolute; right: 20px; top: 10px; color: #aaa; font-size: 28px; font-weight: bold; cursor: pointer; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; } }