/* Minimalist / Clean UI */
:root {
    --bg-color: #e0f2fe;
    --text-color: #334155;
    --text-muted: #64748b;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
    --success-color: #10b981;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;

    --table-header-bg: #f8fafc;
    --progress-bg: #e2e8f0;
    --toggle-off-bg: #cbd5e1;
    --badge-active-bg: #d1fae5;
    --badge-active-text: #065f46;
    --badge-inactive-bg: #fee2e2;
    --badge-inactive-text: #991b1b;
    --btn-secondary-bg: #ffffff;
    --hover-bg: #f1f5f9;
    --input-bg: #ffffff;

    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --border-radius: 12px;
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --primary-color: #3b82f6;
    --primary-hover: #60a5fa;
    --danger-color: #ef4444;
    --danger-hover: #f87171;
    --success-color: #10b981;
    --card-bg: #1e293b;
    --border-color: #334155;
    
    --table-header-bg: #0f172a;
    --progress-bg: #334155;
    --toggle-off-bg: #475569;
    --badge-active-bg: #064e3b;
    --badge-active-text: #34d399;
    --badge-inactive-bg: #7f1d1d;
    --badge-inactive-text: #fca5a5;
    --btn-secondary-bg: #1e293b;
    --hover-bg: #334155;
    --input-bg: #0f172a;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-stack);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1800px;
    width: 96%;
    margin: 0 auto;
    padding: 2rem;
}

header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: -0.025em;
}

.subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Navigation Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tab-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    padding: 0.75rem 1.25rem;
    font-family: var(--font-stack);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.tab-btn.active {
    background: var(--primary-color);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

/* Panels / Cards */
.panel {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    transition: box-shadow 0.2s;
}
.panel:hover {
    box-shadow: var(--shadow-md);
}

.panel h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.mt-4 { margin-top: 1.5rem; }

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.data-table th, .data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--table-header-bg);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.data-table tr:hover td {
    background: var(--table-header-bg);
}

.text-danger { color: var(--danger-color); font-weight: 500; }
.text-success { color: var(--success-color); font-weight: 500; }

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-stack);
    font-size: 0.95rem;
    color: var(--text-color);
    background-color: var(--input-bg);
    transition: all 0.2s;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-stack);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 8px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

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

.btn-secondary {
    background-color: var(--btn-secondary-bg);
    color: var(--text-color);
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--hover-bg);
}

.btn-danger {
    background-color: var(--btn-secondary-bg);
    color: var(--danger-color);
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-danger:hover {
    background-color: var(--badge-inactive-bg);
    border-color: var(--danger-color);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
}

.btn-submit {
    width: 100%;
}

.btn-lang {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.75rem;
    font-size: 0.85rem;
    border-radius: 20px;
}

/* Menu Grid */
.menu-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.btn-menu {
    background: var(--btn-secondary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 2rem;
    font-size: 1.1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.btn-menu:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Utilities */
.hidden { display: none !important; }

footer {
    margin-top: 3rem;
    text-align: right;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-weight: 500;
}

.status-indicator.online {
    color: var(--success-color);
}
.status-indicator.online::before {
    content: "";
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success-color);
    box-shadow: 0 0 5px var(--success-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.close-modal {
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    opacity: 0.6;
}

.close-modal:hover {
    opacity: 1;
}

/* Switch Toggle Component */
.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: .4s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

input:checked + .slider {
    background-color: #10B981; /* Success Green */
}

input:focus + .slider {
    box-shadow: 0 0 1px #10B981;
}

input:checked + .slider:before {
    transform: translateX(16px);
}

.slider.round {
    border-radius: 20px;
}

.slider.round:before {
    border-radius: 50%;
}

.switch-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}