* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #e2e8f0;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 220px;
    height: 100%;
    background: #0f172a;
    border-right: 1px solid #334155;
    display: flex;
    flex-direction: column;
    z-index: 50;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid #334155;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, #22d3ee, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-nav {
    flex: 1;
    padding: 10px;
    overflow-y: auto;
}

.nav-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: #94a3b8;
    text-align: left;
    cursor: pointer;
    font-size: 14px;
}

.nav-btn:hover {
    background: #1e293b;
}

.nav-btn.active {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(168, 85, 247, 0.2));
    color: #22d3ee;
}

.sidebar-footer {
    padding: 10px;
    border-top: 1px solid #334155;
}

/* Main */
.main {
    margin-left: 220px;
    min-height: 100vh;
}

.header {
    position: sticky;
    top: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 16px 24px;
    border-bottom: 1px solid #334155;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 40;
}

.header h1 {
    font-size: 22px;
    background: linear-gradient(135deg, #06b6d4, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header h1 span {
    color: #64748b;
}

.header-actions {
    display: flex;
    gap: 12px;
}

.search-input {
    padding: 10px 16px;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 10px;
    color: #e2e8f0;
    width: 200px;
}

.search-input:focus {
    outline: none;
    border-color: #06b6d4;
}

.add-btn {
    padding: 10px 20px;
    background: linear-gradient(135deg, #06b6d4, #a855f7);
    border: none;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    cursor: pointer;
}

.add-btn:hover {
    opacity: 0.9;
}

/* Content */
.content {
    padding: 24px;
}

.loading {
    text-align: center;
    padding: 60px;
    color: #64748b;
}

/* Genre Section */
.genre-section {
    margin-bottom: 32px;
}

.genre-title {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 12px;
    margin-bottom: 16px;
    border-bottom: 1px solid #334155;
    font-size: 18px;
}

.genre-title .icon {
    font-size: 22px;
}

.genre-title .count {
    color: #64748b;
    font-size: 14px;
}

/* App Grid */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 16px;
}

/* App Card */
.app-card {
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.app-card:hover {
    border-color: #06b6d4;
    transform: translateY(-2px);
}

.app-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 10px;
    background: #334155;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    overflow: hidden;
}

.app-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.app-title {
    font-size: 13px;
    color: #e2e8f0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-actions {
    position: absolute;
    bottom: 8px;
    right: 8px;
    display: none;
    gap: 4px;
}

.app-card:hover .app-actions {
    display: flex;
}

.app-actions button {
    padding: 4px 8px;
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 6px;
    color: #94a3b8;
    cursor: pointer;
    font-size: 12px;
}

.app-actions button:hover {
    color: #f87171;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 16px;
    width: 100%;
    max-width: 440px;
    margin: 20px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid #1e293b;
}

.tabs {
    display: flex;
    gap: 8px;
}

.tab {
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: #94a3b8;
    cursor: pointer;
}

.tab.active {
    background: rgba(6, 182, 212, 0.2);
    color: #22d3ee;
}

.close-btn {
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    font-size: 18px;
}

.modal-body {
    padding: 20px;
}

.tab-content {
    display: none;
}

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

/* Forms */
label {
    display: block;
    margin-bottom: 16px;
    font-size: 14px;
    color: #94a3b8;
}

label input,
label textarea,
label select {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 12px;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 10px;
    color: #e2e8f0;
    font-family: inherit;
}

label input:focus,
label textarea:focus,
label select:focus {
    outline: none;
    border-color: #06b6d4;
}

label textarea {
    resize: none;
}

.submit-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #06b6d4, #a855f7);
    border: none;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    cursor: pointer;
}

/* Genre Form */
.add-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.icon-input {
    width: 50px !important;
    text-align: center;
    font-size: 18px;
}

.add-row input {
    flex: 1;
}

.add-row button {
    padding: 12px 16px;
    background: #06b6d4;
    border: none;
    border-radius: 10px;
    color: white;
    cursor: pointer;
}

#genreList {
    max-height: 250px;
    overflow-y: auto;
}

.genre-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: #1e293b;
    border-radius: 10px;
    margin-bottom: 8px;
}

.genre-item button {
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
}

.genre-item button:hover {
    color: #f87171;
}

/* Mobile */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }

    .sidebar .logo {
        display: none;
    }

    .sidebar-nav .nav-btn {
        padding: 12px;
        justify-content: center;
    }

    .sidebar-nav .nav-btn span:not(:first-child) {
        display: none;
    }

    .main {
        margin-left: 60px;
    }

    .header {
        padding: 12px;
    }

    .header h1 {
        font-size: 16px;
    }

    .search-input {
        width: 100px;
    }

    .add-btn {
        padding: 10px;
    }

    .add-btn span:last-child {
        display: none;
    }
}