.crumble-page {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    position: relative;
    background: linear-gradient(180deg, #060606 0%, #0b0b0b 100%);
    color: #e6e6e6;
    padding: 40px 20px;
    overflow-x: hidden;
}

.crumble-container {
    width: 100%;
    max-width: 500px;
    z-index: 1;
}

.crumble-header {
    text-align: center;
    margin-bottom: 30px;
}

.crumble-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 8px;
    letter-spacing: -1px;
    user-select: none;
    cursor: pointer;
    position: relative;
    display: inline-block;
}

.crumble-letter {
    display: inline-block;
    opacity: 1;
    line-height: 1;
}

.crumble-subtitle {
    font-size: 1rem;
    opacity: 0.5;
    user-select: none;
}

.user-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid #333;
    border-radius: 8px;
    margin-bottom: 20px;
}

.user-info {
    font-size: 0.85rem;
    color: #888;
}

.user-info strong {
    color: #fff;
}

.logout-btn {
    background: transparent;
    border: 1px solid #444;
    color: #888;
    padding: 6px 12px;
    font-family: 'Monocraft', monospace;
    font-size: 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.logout-btn:hover {
    border-color: #888;
    color: #fff;
}

.tab-nav {
    display: flex;
    gap: 0;
    margin-bottom: 30px;
    border: 1px solid #333;
    border-radius: 8px;
    overflow: hidden;
}

.tab-btn {
    flex: 1;
    padding: 14px 20px;
    background: transparent;
    border: none;
    color: #888;
    font-family: 'Monocraft', monospace;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ccc;
}

.tab-btn.active {
    background: #fff;
    color: #000;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.auth-section {
    margin-bottom: 0;
}

.auth-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border: 1px solid #333;
    border-radius: 6px;
    overflow: hidden;
}

.auth-tab-btn {
    flex: 1;
    padding: 10px 15px;
    background: transparent;
    border: none;
    color: #666;
    font-family: 'Monocraft', monospace;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.auth-tab-btn:hover {
    background: rgba(255, 255, 255, 0.03);
    color: #888;
}

.auth-tab-btn.active {
    background: #222;
    color: #fff;
}

.auth-form {
    animation: fadeIn 0.2s ease;
}

.tab-info {
    color: #666;
    font-size: 0.85rem;
    margin-bottom: 20px;
    text-align: center;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.crumble-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.9rem;
    color: #aaa;
}

.form-hint {
    font-size: 0.75rem;
    color: #666;
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
    min-width: 0;
}

.form-row .form-group-wide {
    flex: 2;
}

.form-group-narrow {
    flex: 0 0 80px !important;
    max-width: 80px !important;
}

.form-group-narrow input[type="number"] {
    width: 100% !important;
    text-align: center;
    padding: 12px 6px !important;
    -moz-appearance: textfield;
    appearance: textfield;
}

.form-group-narrow input[type="number"]::-webkit-outer-spin-button,
.form-group-narrow input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="text"],
input[type="password"],
input[type="number"],
select {
    padding: 12px 14px;
    background: #111;
    border: 1px solid #333;
    border-radius: 6px;
    color: #fff;
    font-family: 'Monocraft', monospace;
    font-size: 1rem;
    transition: all 0.2s ease;
}

input:focus,
select:focus {
    outline: none;
    border-color: #fff;
    background: #1a1a1a;
}

input::placeholder {
    color: #555;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23888' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

select option {
    background: #111;
    color: #fff;
}

.input-with-prefix {
    display: flex;
    align-items: stretch;
}

.input-with-prefix.readonly {
    opacity: 0.7;
}

.input-with-prefix.readonly input {
    cursor: not-allowed;
    color: #888;
}

.input-prefix {
    padding: 12px 10px;
    background: #1a1a1a;
    border: 1px solid #333;
    border-right: none;
    border-radius: 6px 0 0 6px;
    color: #666;
    font-size: 1rem;
    display: flex;
    align-items: center;
}

.input-with-prefix input {
    border-radius: 0 6px 6px 0;
    flex: 1;
    min-width: 0;
    max-width: 200px;
}

.input-with-suffix {
    display: inline-flex;
    align-items: stretch;
}

.input-with-suffix input {
    border-radius: 6px 0 0 6px;
    border-right: none;
    width: 70px;
    text-align: center;
    padding: 12px 8px;
    -moz-appearance: textfield;
    appearance: textfield;
}

.input-with-suffix input::-webkit-outer-spin-button,
.input-with-suffix input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.input-suffix {
    padding: 12px 10px;
    background: #1a1a1a;
    border: 1px solid #333;
    border-left: none;
    border-radius: 0 6px 6px 0;
    color: #666;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
}

.file-drop-zone {
    position: relative;
    border: 2px dashed #333;
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.file-drop-zone:hover,
.file-drop-zone.dragover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.02);
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-drop-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.file-drop-text {
    color: #888;
    font-size: 0.95rem;
}

.file-drop-limit {
    color: #555;
    font-size: 0.8rem;
}

.file-selected {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.file-name {
    color: #fff;
    font-size: 0.95rem;
    word-break: break-all;
}

.file-size {
    color: #666;
    font-size: 0.85rem;
}

.file-remove {
    background: #333;
    border: none;
    color: #fff;
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Monocraft', monospace;
    transition: all 0.2s ease;
}

.file-remove:hover {
    background: #ff4444;
}

.checkbox-group {
    flex-direction: row !important;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    color: #888;
    font-size: 0.9rem;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #fff;
}

.submit-btn {
    padding: 14px 24px;
    background: #fff;
    border: none;
    border-radius: 6px;
    color: #000;
    font-family: 'Monocraft', monospace;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 10px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.2);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.submit-btn.secondary {
    background: transparent;
    border: 1px solid #444;
    color: #888;
}

.submit-btn.secondary:hover {
    border-color: #888;
    color: #fff;
    box-shadow: none;
}

.upload-success {
    text-align: center;
}

.upload-success h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #4ade80;
}

.success-details {
    background: #111;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.success-details p {
    color: #888;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.share-link-container {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.share-link-input {
    flex: 1;
    min-width: 0;
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 6px;
    padding: 14px 12px;
    color: #4ade80;
    font-family: 'Monocraft', monospace;
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.share-link-input:focus {
    outline: none;
    border-color: #4ade80;
}

.copy-btn {
    background: #4ade80;
    border: none;
    border-radius: 6px;
    padding: 14px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    min-width: 50px;
    flex-shrink: 0;
}

.copy-btn:hover {
    background: #22c55e;
}

.copy-btn .copy-icon {
    color: #000;
}

.copy-btn .copied-text {
    color: #000;
    font-family: 'Monocraft', monospace;
    font-size: 0.8rem;
    font-weight: bold;
}

.share-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.share-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #222;
}

.share-item:last-child {
    border-bottom: none;
}

.share-label {
    color: #666;
}

.share-value {
    color: #fff;
    font-weight: bold;
}

.file-preview {
    background: #111;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
}

.preview-header {
    margin-bottom: 15px;
}

.preview-header h3 {
    font-size: 1.2rem;
    color: #fff;
}

.preview-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.preview-item {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
}

.preview-label {
    color: #666;
}

.preview-value {
    color: #fff;
    text-align: right;
    word-break: break-all;
}

.warning-box {
    background: rgba(255, 100, 100, 0.1);
    border: 1px solid #663333;
    border-radius: 6px;
    padding: 12px 15px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: #ff8888;
}

.warning-box strong {
    color: #ff6666;
}

.message-box {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: #222;
    border: 1px solid #444;
    border-radius: 8px;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 100;
    animation: slideUp 0.3s ease;
    max-width: 90%;
}

.message-box.error {
    border-color: #663333;
    background: #221111;
}

.message-box.success {
    border-color: #336633;
    background: #112211;
}

.message-text {
    font-size: 0.9rem;
}

.message-close {
    background: transparent;
    border: none;
    color: #666;
    cursor: pointer;
    font-family: 'Monocraft', monospace;
    font-size: 1rem;
    padding: 0 5px;
}

.message-close:hover {
    color: #fff;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 20px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

.back-link-container {
    margin-top: 40px;
    text-align: center;
}

.disclaimer {
    margin-top: 30px;
    padding: 15px;
    text-align: center;
    font-size: 0.7rem;
    color: #555;
    border-top: 1px solid #222;
}

.disclaimer p {
    margin: 0;
}

@media (max-width: 600px) {
    .crumble-title {
        font-size: 2.2rem;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .tab-btn {
        padding: 12px 15px;
        font-size: 0.9rem;
    }
}