@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #2563eb; /* Biru Primer */
    --secondary-color: #10b981; /* Hijau Sukses */
    --warning-color: #f59e0b; /* Oranye Peringatan */
    --danger-color: #ef4444; /* Merah Bahaya */
    
    --background-color: #f3f4f6; /* Abu-abu sangat terang */
    --card-background: #ffffff;
    --text-color: #1f2937; /* Abu-abu gelap */
    --label-color: #4b5563; /* Abu-abu medium */
    --border-color: #e5e7eb; /* Abu-abu terang */
    
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    padding: 2rem 1rem;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 800px;
    background-color: var(--card-background);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

header {
    text-align: center;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

header h1 {
    color: var(--primary-color);
    font-size: 2.2rem;
}

header p {
    color: var(--label-color);
    font-size: 1rem;
    max-width: 600px;
    margin: 0.5rem auto 0;
}

fieldset {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
}

legend {
    font-weight: 600;
    font-size: 1.2rem;
    padding: 0 0.75rem;
    color: var(--primary-color);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--label-color);
    margin-bottom: 0.5rem;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input.error {
    border-color: var(--danger-color);
}

.radio-group, .checkbox-group {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    border-radius: 6px;
}

.radio-group input, .checkbox-group input {
    margin-right: 0.75rem;
    width: 1.15em;
    height: 1.15em;
}

.checkbox-group-wrapper {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1rem;
    flex-wrap: wrap;
}

button {
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

#calculate-btn {
    background-color: var(--primary-color);
    color: white;
}

#calculate-btn:hover {
    background-color: #1e40af;
    transform: translateY(-2px);
}

#autofill-btn {
    background-color: #374151;
    color: white;
}

#autofill-btn:hover {
    background-color: #1f2937;
    transform: translateY(-2px);
}

#guide-btn {
    background-color: #f3f4f6;
    color: var(--label-color);
    border: 1px solid var(--border-color);
}

#guide-btn:hover {
    background-color: #e5e7eb;
    transform: translateY(-2px);
}

.hidden {
    display: none !important;
}

#auto-fee-display {
    background-color: #f7f8fa;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1.5rem;
    font-size: 0.9rem;
}

#auto-fee-display strong {
    font-size: 1.2rem;
    color: var(--secondary-color);
}

/* === DESAIN KARTU HASIL (SESUAI GAMBAR) === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

#results-section {
    margin-top: 2.5rem;
    border-top: 2px solid var(--border-color);
    padding-top: 2rem;
}

.result-card {
    border-radius: 16px;
    margin-bottom: 2rem;
    animation: fadeIn 0.5s ease-out forwards;
    overflow: hidden;
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.result-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background-color: #f9fafb;
}

.result-header h2 {
    font-size: 1.2rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.result-body {
    padding: 1.5rem;
}

.price-line {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.price-line:last-of-type {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.price-line .label {
    font-size: 1rem;
    color: var(--label-color);
}

.price-line .value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.price-line .strikethrough {
    color: var(--label-color);
    text-decoration: line-through;
}

.discount-summary {
    background: #fffbeb;
    padding: 0.75rem 1rem;
    margin: 1.5rem 0;
    border-radius: 8px;
    border-left: 4px solid var(--warning-color);
}

.discount-summary-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.discount-summary-total {
    font-weight: 700;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid #fee2e2;
}

.profit-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.profit-summary-item h4 {
    font-size: 0.9rem;
    color: var(--label-color);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.profit-summary-item p {
    font-size: 1.5rem;
    font-weight: 700;
}

.status-pill {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 99px;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
}

.status-pill.sehat { background-color: var(--secondary-color); }
.status-pill.cukup { background-color: var(--warning-color); }
.status-pill.risiko { background-color: var(--danger-color); }

.profit { color: var(--secondary-color); }
.loss { color: var(--danger-color); }

.advisor-box {
    background-color: #f9fafb;
    padding: 1.5rem;
    margin-top: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.advisor-box h3 { margin-bottom: 0.75rem; }
.advisor-box p { margin-bottom: 0.5rem; }
.advisor-box ul { padding-left: 20px; }

/* Modal Panduan */
.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;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #fefefe;
    margin: auto;
    padding: 30px;
    border: 1px solid #888;
    width: 90%;
    max-width: 800px;
    border-radius: 12px;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    animation: fadeIn 0.3s ease-out;
}

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

#guide-content h1, #guide-content h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

#guide-content li {
    background-color: #f9fafb;
    border-left: 3px solid var(--secondary-color);
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: 0 8px 8px 0;
}