/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
}

body {
    background: #1a1a2e;
    color: #e2e8f0;
    height: 100vh;
    overflow: hidden;
    line-height: 1.6;
}

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 10px;
    gap: 10px;
}

/* ===== HEADER STYLES ===== */
header {
    background: #16213e;
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 24px;
    background: #4a90e2;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

h1 {
    font-size: 24px;
    font-weight: 700;
    color: #4a90e2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.header-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ===== BUTTON STYLES ===== */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
}

.btn-primary {
    background: #4a90e2;
    color: white;
    box-shadow: 0 2px 4px rgba(74, 144, 226, 0.3);
}

.btn-primary:hover {
    background: #3a7bc8;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(74, 144, 226, 0.4);
}

.btn-secondary {
    background: #2d3748;
    color: #e2e8f0;
    border: 1px solid #4a5568;
}

.btn-secondary:hover {
    background: #4a5568;
    transform: translateY(-1px);
}

.btn-success {
    background: #38a169;
    color: white;
    box-shadow: 0 2px 4px rgba(56, 161, 105, 0.3);
}

.btn-success:hover {
    background: #2f855a;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(56, 161, 105, 0.4);
}

.btn-danger {
    background: #e53e3e;
    color: white;
    box-shadow: 0 2px 4px rgba(229, 62, 62, 0.3);
}

.btn-danger:hover {
    background: #c53030;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(229, 62, 62, 0.4);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ===== MAIN CONTENT LAYOUT ===== */
.main-content {
    display: flex;
    flex: 1;
    gap: 10px;
    overflow: hidden;
    min-height: 0;
    height: 100vh;
}

.editor-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #16213e;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    min-width: 300px;
}

.preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #16213e;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    min-width: 300px;
    height: 100%;
    min-height: 100vh;
}

/* ===== TABS STYLES ===== */
.tabs {
    display: flex;
    background: #0f3460;
    border-bottom: 1px solid #2d3748;
    overflow-x: auto;
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    transition: all 0.3s;
    border-right: 1px solid #2d3748;
    white-space: nowrap;
    position: relative;
    font-size: 14px;
}

.tab.active {
    background: #4a90e2;
    font-weight: 600;
}

.tab:hover:not(.active) {
    background: #1e3a5c;
}

.tab-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    background: #e53e3e;
    color: white;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== PANEL HEADER STYLES ===== */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: #0f3460;
    border-bottom: 1px solid #2d3748;
    flex-wrap: wrap;
    gap: 10px;
}

.panel-title {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.panel-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* ===== EDITOR CONTAINER STYLES ===== */
.editor-container {
    flex: 1;
    overflow: hidden;
    position: relative;
    background: #1a1a2e;
}

.CodeMirror {
    height: 100%;
    font-size: 14px;
    line-height: 1.5;
}

/* ===== PREVIEW CONTAINER STYLES ===== */
.preview-container {
    flex: 1;
    background: white;
    border: none;
    width: 100%;
    height: 100%;
    transition: all 0.3s;
}

.preview-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f7fafc;
    color: #4a5568;
    font-size: 16px;
}

/* ===== RESIZE HANDLE STYLES ===== */
.resize-handle {
    width: 10px;
    background: #0f3460;
    cursor: col-resize;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4a5568;
    transition: background 0.3s;
    position: relative;
}

.resize-handle:hover {
    background: #1e3a5c;
}

.resize-handle::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 20px;
    background: #4a5568;
    border-radius: 1px;
}

/* ===== STATUS BAR STYLES ===== */
.status-bar {
    background: #0f3460;
    padding: 8px 15px;
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #a0aec0;
    border-radius: 5px;
    margin-top: 5px;
}

.status-info {
    display: flex;
    gap: 15px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* ===== FORM CONTROL STYLES ===== */
.theme-selector, .font-size-selector {
    background: #2d3748;
    color: #e2e8f0;
    border: 1px solid #4a5568;
    border-radius: 4px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 12px;
}

.theme-selector:focus, .font-size-selector:focus {
    outline: none;
    border-color: #4a90e2;
}

/* ===== MODAL STYLES ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.share-modal {
    background: #16213e;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .share-modal {
    transform: translateY(0);
}

.modal-header {
    background: #0f3460;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #2d3748;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
}

.close-modal {
    background: none;
    border: none;
    color: #e2e8f0;
    font-size: 20px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.3s;
}

.close-modal:hover {
    background: rgba(255, 255, 255, 0.1);
}

.modal-body {
    padding: 20px;
}

.share-url-container {
    display: flex;
    margin-bottom: 20px;
}

.share-url {
    flex: 1;
    padding: 10px;
    background: #1a202c;
    border: 1px solid #2d3748;
    border-radius: 5px 0 0 5px;
    color: #e2e8f0;
    font-size: 14px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.copy-url-btn {
    background: #4a90e2;
    color: white;
    border: none;
    padding: 0 15px;
    border-radius: 0 5px 5px 0;
    cursor: pointer;
    transition: background 0.3s;
    font-weight: 600;
}

.copy-url-btn:hover {
    background: #3a7bc8;
}

.share-platforms {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.share-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px 10px;
    background: #1a202c;
    border: 1px solid #2d3748;
    border-radius: 8px;
    color: #e2e8f0;
    cursor: pointer;
    transition: all 0.3s;
}

.share-btn:hover {
    background: #2d3748;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.share-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.facebook .share-icon {
    background: #3b5998;
    color: white;
}

.twitter .share-icon {
    background: #1da1f2;
    color: white;
}

.linkedin .share-icon {
    background: #0077b5;
    color: white;
}

.whatsapp .share-icon {
    background: #25d366;
    color: white;
}

.telegram .share-icon {
    background: #0088cc;
    color: white;
}

.reddit .share-icon {
    background: #ff4500;
    color: white;
}

.email .share-icon {
    background: #ea4335;
    color: white;
}

.slack .share-icon {
    background: #4a154b;
    color: white;
}

.github .share-icon {
    background: #333;
    color: white;
}

.share-label {
    font-size: 12px;
    text-align: center;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
    
    .resize-handle {
        display: none;
    }
    
    header {
        flex-direction: column;
        gap: 15px;
    }

    .share-platforms {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .header-controls {
        justify-content: center;
    }
    
    .panel-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .panel-controls {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .tab {
        padding: 8px 15px;
        font-size: 12px;
    }
    
    .share-platforms {
        grid-template-columns: 1fr;
    }
    
    .status-bar {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
}

/* ===== UTILITY CLASSES ===== */
.hidden {
    display: none !important;
}

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

.text-success {
    color: #68d391;
}

.text-warning {
    color: #ecc94b;
}

.text-error {
    color: #e53e3e;
}

.mb-10 {
    margin-bottom: 10px;
}

.mt-10 {
    margin-top: 10px;
}

.p-10 {
    padding: 10px;
}

.flex {
    display: flex;
}

.flex-1 {
    flex: 1;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

/* ===== LOADING ANIMATION ===== */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== CUSTOM SCROLLBARS ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #2d3748;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #4a5568;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #718096;
}