/* =========================
   QR GENERATOR
========================= */

.qr-generator .container {
    max-width: 900px;
    margin: 40px auto;
    padding: 40px;
    box-shadow: 0 20px 50px rgba(0, 63, 127, 0.2);
    border-radius: 16px;
    background: white;
}

.qr-generator h1 {
    font-size: 2em;
    color: #003f7f;
    margin: 0 0 28px 0;
    text-align: center;
}

.qr-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    width: 100%;
}

.qr-controls label {
    font-size: 0.95rem;
    font-weight: 600;
    color: #333;
}

.qr-input-row {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.qr-controls textarea {
    width: 100%;
    max-width: 100%;
    padding: 14px 18px;
    font-size: 16px;
    border: 2px solid #ddd;
    border-radius: 12px;
    resize: vertical;
    box-sizing: border-box;
}

.file-upload-area {
    display: flex;
    justify-content: center;
}

.file-upload-area input[type="file"] {
    position: absolute;
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    z-index: -1;
}

.file-upload-btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 0.9rem;
    background: #e8f4fd;
    color: #007BFF;
    border: 2px dashed #b8d4f0;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.file-upload-btn:hover {
    background: #d0e8f9;
    border-color: #007BFF;
}

.qr-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    width: 100%;
}

.qr-option-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.qr-option-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: #555;
}

.qr-option-group input[type="color"] {
    width: 48px;
    height: 36px;
    padding: 2px;
    border: 2px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
}

.qr-custom-select {
    position: relative;
}

.qr-select-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 140px;
    padding: 8px 14px;
    font-size: 0.9rem;
    border: 2px solid #ddd;
    border-radius: 12px;
    background: white;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.qr-select-trigger:hover {
    border-color: #007BFF;
    background: #f8fcff;
}

.qr-select-trigger::after {
    content: "";
    width: 0;
    height: 0;
    margin-left: 8px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #555;
}

.qr-select-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin: 4px 0 0 0;
    padding: 6px 0;
    min-width: 100%;
    list-style: none;
    background: white;
    border: 2px solid #ddd;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 63, 127, 0.15);
    z-index: 100;
    display: none;
}

.qr-custom-select.open .qr-select-menu {
    display: block;
}

.qr-select-menu li {
    padding: 10px 14px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s;
}

.qr-select-menu li:first-child {
    border-radius: 10px 10px 0 0;
}

.qr-select-menu li:last-child {
    border-radius: 0 0 10px 10px;
}

.qr-select-menu li:hover {
    background: #e8f4fd;
}

.qr-select-menu li.selected {
    background: #d0e8f9;
    font-weight: 600;
}

.qr-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.qr-presets-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #555;
}

.qr-preset {
    padding: 6px 12px;
    font-size: 0.8rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    background: white;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.qr-preset:hover {
    border-color: #007BFF;
    background: #f0f7ff;
}

.qr-preset.selected {
    border-color: #007BFF;
    background: #d0e8f9;
    font-weight: 600;
}

.qr-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.reset-qr-btn {
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    background: white;
    color: #666;
    border: 2px solid #ddd;
    border-radius: 12px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.reset-qr-btn:hover {
    border-color: #e8a5a5;
    background: #ffe6e6;
    color: #c82333;
}

.qr-controls textarea:focus {
    outline: none;
    border-color: #007BFF;
}

#generate-qr {
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    background: #003f7f;
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}

#generate-qr:hover {
    background: #0056b3;
    transform: scale(1.05);
}

.qr-result {
    margin-top: 28px;
    padding: 24px;
    display: none;
    justify-content: center;
    align-items: center;
    background: #f8fcff;
    border: 2px dashed #b8d4f0;
    border-radius: 16px;
    min-height: 200px;
}

.qr-result.show {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.download-qr-btn {
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}

.download-qr-btn:hover {
    background: #34c759;
    transform: scale(1.05);
}

#qr-output {
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 63, 127, 0.15);
}

#qr-output canvas,
#qr-output img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

@media (max-width: 768px) {
    .qr-generator .container {
        margin: 20px 16px;
        padding: 28px 24px;
    }
}

@media (max-width: 600px) {
    .qr-generator .container {
        margin: 12px 10px;
        padding: 24px 18px;
    }
    .qr-generator h1 {
        font-size: 1.5em;
    }
    .qr-controls textarea {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .qr-generator .container {
        margin: 8px 8px;
        padding: 20px 14px;
    }
}