/* Reset dan Font Dasar */
:root {
    --primary-color: #00529B;
    --secondary-color: #0077CC;
    --background-color: #f4f7f9;
    --text-color: #333;
    --card-bg-color: #ffffff;
    --border-color: #e0e0e0;
    --error-color: #D8000C;
    --error-bg-color: #FFD2D2;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Header */
header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
}

/* Konten Utama */
main {
    padding: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

/* Kontrol */
.controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--card-bg-color);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.controls label {
    font-weight: 500;
}

.controls select, .controls button {
    font-size: 1rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: #fff;
}

.controls select {
    flex-grow: 1;
}

.controls button {
    background-color: var(--secondary-color);
    color: white;
    cursor: pointer;
    border: none;
    transition: background-color 0.2s;
}

.controls button:hover {
    background-color: var(--primary-color);
}

.button-danger {
    background-color: #D8000C !important;
}

.button-danger:hover {
    background-color: #a00000 !important;
}

/* Kontainer Statistik */
#stats-container {
    margin-top: 1rem;
}

.hidden {
    display: none;
}

/* Indikator Loading dan Pesan Error */
#loading-indicator {
    text-align: center;
    padding: 2rem;
    font-size: 1.2rem;
    color: var(--secondary-color);
}

#error-message {
    text-align: center;
    padding: 1rem;
    background-color: var(--error-bg-color);
    color: var(--error-color);
    border: 1px solid var(--error-color);
    border-radius: 8px;
}

/* Tampilan Kartu Statistik */
#stats-display h2 {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.stat-card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.08);
}

.stat-card h3 {
    margin-top: 0;
    color: var(--secondary-color);
}

.stat-card p {
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.stat-card p strong {
    font-weight: 500;
    min-width: 180px;
    display: inline-block;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    color: #888;
    font-size: 0.9rem;
}

/* Modal Styling */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--card-bg-color);
    margin: auto;
    padding: 2rem;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 500px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    position: relative;
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    position: absolute;
    top: 10px;
    right: 20px;
}

.close-button:hover,
.close-button:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

/* Form Styling */
form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

form label {
    font-weight: 500;
    margin-bottom: -0.5rem;
}

form input[type="text"],
form input[type="password"],
form input[type="number"],
form button {
    width: 100%;
    padding: 0.8rem;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    box-sizing: border-box; /* Important for padding */
}

form button {
    background-color: var(--primary-color);
    color: white;
    cursor: pointer;
    border: none;
    transition: background-color 0.2s;
    margin-top: 1rem;
}

form button:hover {
    background-color: var(--secondary-color);
}

#modal-error-message {
    margin-top: 1rem;
    color: var(--error-color);
    background-color: var(--error-bg-color);
    border: 1px solid var(--error-color);
    padding: 0.8rem;
    border-radius: 5px;
    text-align: center;
}