:root {
    --bg-color: #f5f5f7;
    --card-bg: rgba(255, 255, 255, 0.8);
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --accent-blue: #0071e3;
    --border-color: #d2d2d7;
    --radius: 18px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    max-width: 980px;
    margin: 0 auto;
    padding: 20px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.brand-logo {
    height: 38px;
    vertical-align: middle;
}

.brand-name {
    font-weight: 600;
    font-size: 1.2rem;
    margin-left: 10px;
    letter-spacing: -0.5px;
}

.card {
    background: #ffffff;
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 0;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

/* Apple Dropzone */
.dropzone-label {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #fafafa;
}

.dropzone-label:hover {
    border-color: var(--accent-blue);
    background: #f0f7ff;
}

.btn-primary, .btn-apple-action {
    background-color: var(--accent-blue);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 980px;
    font-weight: 500;
    cursor: pointer;
    font-size: 0.95rem;
    transition: transform 0.1s ease, background 0.2s;
}

.btn-primary:hover, .btn-apple-action:hover {
    background-color: #0077ed;
    transform: scale(1.01);
}

/* Table Styling */
.apple-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.apple-table th {
    text-align: left;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.apple-table td {
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.table-input {
    width: 90%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    outline: none;
}

.table-input:focus {
    border-color: var(--accent-blue);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.input-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-sizing: border-box;
}

.summary-box {
    margin-top: 25px;
    float: right;
    width: 280px;
}

.summary-line {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.summary-line.total {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
    margin-top: 6px;
}

.form-footer {
    clear: both;
    padding-top: 30px;
    text-align: right;
}