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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: linear-gradient(180deg, #1a0000 0%, #2d0000 30%, #4a0000 60%, #1a0000 100%);
    min-height: 100vh;
    padding: 20px 16px 40px;
}

.container {
    max-width: 420px;
    margin: 0 auto;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 24px;
    padding-top: 10px;
}

.header h1 {
    font-size: 22px;
    color: #fff;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    color: rgba(255,255,255,0.75);
    font-size: 14px;
    margin-top: 8px;
}

/* Card */
.form-card {
    background: #fff;
    border-radius: 12px;
    padding: 24px 20px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

/* Admin card */
.admin-card {
    background: #fff;
    border-radius: 12px;
    padding: 24px 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
}

.success-card {
    background: #fff;
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    margin-bottom: 20px;
}

.success-icon {
    font-size: 56px;
    margin-bottom: 16px;
}

.success-card h2 {
    font-size: 20px;
    color: #333;
    margin-bottom: 8px;
}

.success-card p {
    color: #666;
    font-size: 15px;
}

/* Form groups */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    color: #333;
    font-weight: 600;
    margin-bottom: 6px;
}

.required {
    color: #D32F2F;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    font-size: 15px;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    outline: none;
    transition: border-color 0.2s;
    background: #fafafa;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: #8B0000;
    background: #fff;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Button */
.btn-submit {
    width: 100%;
    padding: 14px;
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #8B0000 0%, #B22222 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    margin-top: 4px;
    transition: opacity 0.2s, transform 0.1s;
    -webkit-appearance: none;
}

.btn-submit:active {
    opacity: 0.85;
    transform: scale(0.98);
}

/* Error */
.error-msg {
    background: #fff3f3;
    color: #D32F2F;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    margin-bottom: 16px;
    border: 1px solid #ffcccc;
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 20px;
    color: rgba(255,255,255,0.55);
    font-size: 12px;
}

/* QR section */
.qr-section {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    margin-top: 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.qr-section p {
    margin-bottom: 12px;
    font-size: 14px;
    color: #333;
}

.qr-placeholder {
    width: 160px;
    height: 160px;
    margin: 12px auto 0;
    border: 2px dashed #ddd;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #fafafa;
}

/* Admin */
.admin-bar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 16px;
}

.btn-logout {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    text-decoration: none;
    padding: 6px 12px;
    background: rgba(255,255,255,0.15);
    border-radius: 6px;
}

.table-wrapper {
    background: #fff;
    border-radius: 12px;
    overflow-x: auto;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    min-width: 1000px;
    display: block;
    overflow-x: auto;
}

thead {
    background: #fafafa;
}

th {
    padding: 12px 10px;
    text-align: left;
    font-weight: 600;
    color: #555;
    border-bottom: 2px solid #e0e0e0;
    white-space: nowrap;
}

td {
    padding: 10px;
    border-bottom: 1px solid #f0f0f0;
    color: #333;
}

tr:last-child td {
    border-bottom: none;
}

.note-cell {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.empty-state {
    text-align: center;
    color: #999;
    padding: 60px 20px;
    background: #fff;
    border-radius: 12px;
}

/* Mobile */
@media (max-width: 380px) {
    body {
        padding: 12px 10px 30px;
    }

    .header h1 {
        font-size: 20px;
    }

    .form-card {
        padding: 20px 16px;
    }

    .region-row {
        flex-direction: column;
        gap: 8px;
    }
}