:root {
    --bg-main: #0b0f19;
    --bg-card: #111827;
    --bg-card-hover: #1f2937;
    --border-color: #1e293b;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --danger: #ef4444;
    --success: #22c55e;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body.bg-dark-theme {
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Tela de Login */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.login-card img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 20px;
    border-radius: 12px;
}

.login-card h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--text-main);
}

.login-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.form-group {
    position: relative;
    margin-bottom: 16px;
    text-align: left;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus, .form-group select:focus {
    border-color: var(--accent-color);
}

.toggle-password {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
}

.toggle-password:hover {
    color: var(--text-main);
}

.btn-primary {
    width: 100%;
    padding: 12px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 8px;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
    padding: 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    margin-bottom: 16px;
}

/* Dashboard Principal */
header.app-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-brand img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.header-brand h1 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-main);
}

.header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.btn-logout, .btn-action-custom {
    background-color: var(--bg-card-hover);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.btn-logout:hover {
    background-color: var(--danger);
    border-color: var(--danger);
    color: white;
}

.btn-action-custom:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.dashboard-main {
    padding: 30px 20px;
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Sistema de Abas / Categorias */
.categories-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 15px;
    margin-bottom: 20px;
    scrollbar-width: thin;
}

.tab-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
}

.tab-btn:hover, .tab-btn.active {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.search-bar-container {
    margin-bottom: 25px;
    text-align: center;
}

.search-bar-container input {
    width: 100%;
    max-width: 600px;
    padding: 14px 20px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
    transition: border-color 0.2s;
}

.search-bar-container input:focus {
    border-color: var(--accent-color);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.link-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 18px 20px;
    text-decoration: none;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: relative;
}

.link-card:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px -3px rgba(59, 130, 246, 0.15);
}

.link-info {
    display: flex;
    align-items: center;
    gap: 14px;
    overflow: hidden;
    flex: 1;
}

.link-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.link-text {
    overflow: hidden;
}

.link-text h3 {
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-main);
}

.link-text span {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

.link-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.btn-fav {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1rem;
    cursor: pointer;
    transition: color 0.2s;
    padding: 4px;
    text-decoration: none;
}

.btn-fav.active, .btn-fav:hover {
    color: #eab308;
}

.server-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-muted);
    display: inline-block;
    box-shadow: 0 0 6px rgba(0,0,0,0.5);
}

.server-status.online {
    background-color: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.server-status.offline {
    background-color: var(--danger);
    box-shadow: 0 0 8px var(--danger);
}

.link-arrow {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: transform 0.2s;
}

.link-card:hover .link-arrow {
    color: var(--accent-color);
    transform: translateX(3px);
}

footer.app-footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-card);
}