.tabs { 
    display: flex; 
    margin-bottom: 25px; 
    flex-wrap: wrap; 
    gap: 10px;
    justify-content: center;
}
.tab-link { 
    position: relative; 
    background-color: var(--input-bg); 
    border: 1px solid var(--input-border);
    color: var(--text-muted); 
    padding: 12px 20px; 
    font-size: 1em; 
    font-weight: 500; 
    cursor: pointer; 
    transition: all 0.2s ease; 
    border-radius: var(--radius);
    flex-grow: 1;
    text-align: center;
}
@media (min-width: 768px) {
    .tab-link {
        flex-grow: 0;
    }
}

.tab-link:hover { 
    color: var(--text-light); 
    border-color: var(--focus-border);
    background-color: #3f3f3f;
}
.tab-link.active { 
    color: var(--accent); 
    border-color: var(--accent);
    background-color: var(--container-dark);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.tab-link.has-notification::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 10px;
    height: 10px;
    background-color: var(--accent);
    border-radius: 50%;
    border: 1px solid var(--bg-dark);
    box-shadow: 0 0 8px var(--accent);
    animation: pulse-glow-tab 2s infinite;
}

@keyframes pulse-glow-tab {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.7; }
    100% { transform: scale(1); opacity: 1; }
}

.tab-content { 
    display: none; 
}
.tab-content.active { 
    display: block; 
    animation: fadeIn 0.5s; 
}
@keyframes fadeIn { 
    from { opacity: 0; transform: translateY(10px); } 
    to { opacity: 1; transform: translateY(0); } 
}

.btn { 
    padding: 14px 28px; 
    border: none; 
    border-radius: var(--radius); 
    font-size: 1.1em; 
    cursor: pointer; 
    transition: all 0.3s ease; 
    font-weight: bold; 
    letter-spacing: 1px; 
    width: 100%; 
    box-sizing: border-box; 
}
.btn-primary { 
    background: linear-gradient(145deg, var(--primary-grad-start), var(--primary-grad-end)); 
    color: #fff; 
}
.btn-primary:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 4px 15px rgba(140, 82, 255, 0.5); 
}
.btn-primary:disabled { 
    background: #555; 
    cursor: not-allowed; 
    transform: none; 
    box-shadow: none; 
    opacity: 0.7; 
}
.btn-secondary { 
    background-color: var(--input-bg); 
    color: var(--text-light); 
}

.message { 
    margin-top: 20px; 
    padding: 15px; 
    border-radius: var(--radius); 
    font-weight: bold; 
    border: 1px solid transparent; 
}
.message.success { 
    background-color: rgba(76, 175, 80, 0.2); 
    color: #4CAF50; 
    border-color: #4CAF50; 
}
.message.error { 
    background-color: rgba(244, 67, 54, 0.2); 
    color: #F44336; 
    border-color: #F44336; 
}
.message.info { 
    background-color: rgba(33, 150, 243, 0.2); 
    color: #2196F3; 
    border-color: #2196F3; 
}
.spinner { 
    border: 4px solid #333; 
    border-top: 4px solid var(--accent); 
    border-radius: 50%; 
    width: 40px; 
    height: 40px; 
    animation: spin 1s linear infinite; 
    margin: 40px auto; 
}
.spinner-small { 
    border: 2px solid #555; 
    border-top: 2px solid var(--accent); 
    border-radius: 50%; 
    width: 16px; 
    height: 16px; 
    animation: spin 1s linear infinite; 
    display: inline-block; 
    vertical-align: middle; 
}
@keyframes spin { 
    0% { transform: rotate(0deg); } 
    100% { transform: rotate(360deg); } 
}

.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 26, 26, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
    transition: opacity 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    pointer-events: none;
}


.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    padding: 20px;
    box-sizing: border-box;
}
.modal-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}
.modal-content {
    background-color: var(--container-dark);
    padding: 30px;
    border-radius: var(--radius);
    border: 1px solid var(--container-border);
    box-shadow: 0 8px 12px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,0,0,0.8);
    text-align: center;
    max-width: 95%;
    width: 500px;
    transform: scale(0.95);
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}
.modal-overlay.visible .modal-content {
    transform: scale(1);
}
.modal-content h3 {
    color: var(--accent);
    margin-top: 0;
    margin-bottom: 15px;
    flex-shrink: 0;
}
#modal-body {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
    overflow-y: auto;
    padding-right: 15px;
    flex-grow: 1;
}
#modal-text {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 1.1em;
    margin: 0;
}

.modal-body-image {
    max-width: 128px;
    height: auto;
    border-radius: var(--radius);
    margin: 0 auto 15px auto;
    display: block;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.modal-warning {
    background-color: rgba(241, 196, 15, 0.1);
    border: 1px solid rgba(241, 196, 15, 0.5);
    border-radius: var(--radius);
    padding: 12px;
    font-size: 0.9em;
    font-weight: 500;
    color: #f1c40f;
    line-height: 1.5;
}
.modal-warning strong {
    font-weight: 700;
}

.modal-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-shrink: 0;
}
.btn-modal-confirm, .btn-modal-cancel, .btn-modal-next {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    color: white;
    max-width: 180px;
}
.btn-modal-confirm {
    background-color: var(--modal-confirm-bg);
}
.btn-modal-confirm:hover {
    background-color: var(--modal-confirm-hover-bg);
    transform: translateY(-2px);
}
.btn-modal-cancel {
    background-color: var(--modal-cancel-bg);
}
.btn-modal-cancel:hover {
    background-color: var(--modal-cancel-hover-bg);
    transform: translateY(-2px);
}

.btn-modal-next {
    background-color: #3498db;
    animation: pulse-glow-blue 2s infinite;
}

@keyframes pulse-glow-blue {
    0% { box-shadow: 0 0 8px rgba(52, 152, 219, 0.5); }
    50% { box-shadow: 0 0 16px rgba(52, 152, 219, 1); }
    100% { box-shadow: 0 0 8px rgba(52, 152, 219, 0.5); }
}

#modal-body::-webkit-scrollbar {
  width: 8px;
}
#modal-body::-webkit-scrollbar-track {
  background: var(--bg-dark);
  border-radius: 10px;
}
#modal-body::-webkit-scrollbar-thumb {
  background-color: var(--input-border);
  border-radius: 10px;
  border: 2px solid var(--bg-dark);
}
#modal-body::-webkit-scrollbar-thumb:hover {
  background-color: #555;
}


.level-up-modal-content {
    text-align: left;
}
.level-up-modal-content h4 {
    color: var(--accent);
    margin-top: 20px;
    margin-bottom: 10px;
}
.level-up-rewards {
    list-style-type: none;
    padding: 0;
    margin: 0;
}
.level-up-rewards li {
    background-color: var(--bg-dark);
    padding: 10px 15px;
    border-radius: var(--radius);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    border: 1px solid var(--input-border);
}
.level-up-rewards img {
    width: 40px;
    height: auto;
    margin-right: 15px;
}

.mine-claim-reward-modal {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.mine-claim-reward-modal .reward-icon {
    width: 80px;
    height: 80px;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,0.5));
}

.mine-claim-reward-modal .reward-text {
    font-size: 1.2em;
    line-height: 1.5;
    color: var(--text-light);
}

.mine-claim-reward-modal .reward-text strong {
    color: var(--accent);
    font-size: 1.3em;
}