/* Dark theme base styles */
body {
    background-color: #1a1a1a;
    color: #e0e0e0;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

/* Tab Navigation */
.tab-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.tab-nav {
    display: flex;
    background-color: #2a2a2a;
    border-radius: 8px;
    padding: 4px;
    margin-bottom: 20px;
    gap: 4px;
}

.tab-btn {
    flex: 1;
    padding: 12px 24px;
    background: transparent;
    color: #999;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
    font-weight: 500;
}

.tab-btn:hover {
    color: #e0e0e0;
    background-color: #333;
}

.tab-btn.active {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.3);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

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

h2 {
    color: #e0e0e0;
    margin-bottom: 20px;
    text-align: center;
}

.gallery-upload-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #444;
}

.images {
    display: grid;
    width: 80%;
    margin: 20px auto;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-gap: 20px;
    justify-items: center;
}

.images img {
    width: 300px;
    height: 300px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.drop-zone {
    border: 2px dashed #555;
    border-radius: 10px;
    width: 80%;
    margin: 20px auto;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: #2a2a2a;
    color: #e0e0e0;
}

.drop-zone.drag-over {
    border-color: #007bff;
    background-color: #1a2a3a;
}

.drop-zone:hover {
    border-color: #007bff;
    background-color: #252525;
}

.upload-results {
    width: 80%;
    margin: 20px auto;
    color: #e0e0e0;
}

.upload-result {
    background-color: #2a2a2a;
    border: 1px solid #444;
    border-radius: 5px;
    padding: 15px;
    margin: 10px 0;
}

.upload-result a {
    color: #4dabf7;
}

.upload-result a:hover {
    color: #74c0fc;
}

.upload-result button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 5px;
}

.upload-result button:hover {
    background-color: #0056b3;
}

/* Message form styling */
.message-form {
    background: #2a2a2a;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.3);
    width: 80%;
    margin: 20px auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
    border: 1px solid #444;
}

.message-form input {
    padding: 12px 16px;
    border: 2px solid #555;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    outline: none;
    background-color: #1a1a1a;
    color: #e0e0e0;
}

.message-form input:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

.message-form input::placeholder {
    color: #999;
}

.submit-btn {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.submit-btn:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

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

/* Password section styling */
.password-section {
    background: #2a2a2a;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.3);
    width: 80%;
    margin: 20px auto;
    display: flex;
    gap: 15px;
    align-items: center;
    border: 1px solid #444;
}

.password-section input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #555;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    outline: none;
    background-color: #1a1a1a;
    color: #e0e0e0;
}

.password-section input:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

.password-section input::placeholder {
    color: #999;
}

.password-btn {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.password-btn:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 123, 255, 0.3);
}

.logout-btn {
    background: linear-gradient(135deg, #dc3545, #c82333) !important;
    margin-left: auto;
}

.logout-btn:hover {
    background: linear-gradient(135deg, #c82333, #bd2130) !important;
}

/* Upload progress styling */
.upload-progress {
    background-color: #2a2a2a;
    border: 1px solid #444;
    border-radius: 8px;
    padding: 20px;
    margin: 10px 0;
    text-align: center;
}

.progress-bar {
    width: 100%;
    height: 20px;
    background-color: #1a1a1a;
    border-radius: 10px;
    overflow: hidden;
    margin: 15px 0;
    border: 1px solid #555;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #007bff, #0056b3);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 10px;
}

#upload-status {
    color: #4dabf7;
    font-size: 14px;
    margin: 10px 0 0 0;
}