:root {
    --bg: #222428;
    --bg-secondary: #292b31;
    --bg-tertiary: #272b31;
    --text: #ffffff;
    --text-secondary: #f0f4f8;
    --text-muted: #b8c5d6;
    --accent: #5dade2;
    --accent-dark: #3498db;
    --accent-light: #85c1e9;
    --success: #52c77a;
    --warning: #f39c12;
    --error: #e74c3c;
    --border: rgba(255, 255, 255, 0.15);
    --border-light: rgba(255, 255, 255, 0.25);
    --shadow: rgba(0, 0, 0, 0.2);
}

body {
    margin: 0;
    background: linear-gradient(135deg, #3a4256 0%, #4a5468 100%);
    background-attachment: fixed;
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    font-size: 17px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 5px;
    border: 2px solid var(--bg);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-dark);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 2px 8px var(--shadow);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.5px;
}

.logo a {
    background: linear-gradient(135deg, var(--accent-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-name {
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
}

.btn {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #ffffff;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(88, 166, 255, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.4);
    text-decoration: none;
}

.btn-link {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent);
    cursor: pointer;
    font: inherit;
}

.layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: calc(100vh - 64px);
}

.sidebar {
    background: var(--bg-secondary);
    padding: 24px 16px;
    border-right: 1px solid var(--border);
    box-shadow: 2px 0 8px var(--shadow);
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar a {
    padding: 12px 16px;
    border-radius: 8px;
    color: #ffffff;
    background: transparent;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 17px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar a:hover {
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.2), rgba(93, 173, 226, 0.15));
    color: #ffffff;
    transform: translateX(4px);
    text-decoration: none;
}

.content {
    padding: 32px 40px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 28px;
    background: linear-gradient(135deg, var(--accent-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.stat-card {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    box-shadow: 0 4px 12px var(--shadow);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--shadow);
    border-color: rgba(255, 255, 255, 0.3);
}

.stat-title {
    display: block;
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    opacity: 0.9;
}

.stat-value {
    display: block;
    font-size: 48px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 24px;
}

.card {
    background: var(--bg-secondary);
    padding: 28px;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 16px var(--shadow);
    transition: all 0.3s ease;
}

.card:hover {
    border-color: var(--border-light);
    box-shadow: 0 6px 24px var(--shadow);
}

.card h2 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 26px;
    font-weight: 600;
    color: #ffffff;
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 12px;
}

form label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
    font-size: 17px;
}

form input,
form select,
form textarea,
.inline-form input,
.inline-form select {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
    color: var(--text);
    margin-bottom: 16px;
    font-size: 17px;
    transition: all 0.2s ease;
}

form input:focus,
form select:focus,
form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(110, 180, 255, 0.15);
    background: var(--bg-secondary);
}

form button {
    width: 100%;
    padding: 14px 18px;
    border: none;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(110, 180, 255, 0.35);
}

form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.4);
}

.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid;
    font-weight: 500;
}

.alert-success { 
    background: rgba(63, 185, 80, 0.15); 
    color: #7ee787; 
    border-left-color: var(--success);
}
.alert-error { 
    background: rgba(248, 81, 73, 0.15); 
    color: #ff7b72; 
    border-left-color: var(--error);
}

.table-scroll {
    display: block;
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--border);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-tertiary);
    font-size: 17px;
}

thead {
    background: var(--bg-secondary);
}

th {
    text-align: left;
    padding: 16px 18px;
    border-bottom: 2px solid var(--border-light);
    font-weight: 600;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #ffffff;
    white-space: nowrap;
}

td {
    text-align: left;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    font-size: 17px;
}

tbody tr {
    transition: background 0.2s ease;
}

tbody tr:hover {
    background: rgba(88, 166, 255, 0.05);
}

.badge {
    display: inline-block;
    padding: 7px 14px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success { background: rgba(82, 199, 122, 0.3); color: #a8f0c0; }
.badge-error { background: rgba(231, 76, 60, 0.3); color: #ff9999; }
.badge-status-изчакващи { background: rgba(243, 156, 18, 0.3); color: #ffd699; }
.badge-status-потвърдени { background: rgba(93, 173, 226, 0.3); color: #b3d9ff; }
.badge-status-получени { background: rgba(82, 199, 122, 0.3); color: #a8f0c0; }
.badge-status-издадени { background: rgba(149, 165, 166, 0.3); color: #d5dbdb; }
.badge-status-отменени { background: rgba(231, 76, 60, 0.3); color: #ff9999; }
.badge-status-складирани { background: rgba(93, 173, 226, 0.3); color: #b3d9ff; }
.badge-status-монтирани { background: rgba(82, 199, 122, 0.3); color: #a8f0c0; }
.badge-status-продадени { background: rgba(243, 156, 18, 0.3); color: #ffd699; }
.badge-status-бракувани { background: rgba(149, 165, 166, 0.3); color: #d5dbdb; }

/* Статуси на фактури */
.badge-status-чернова { background: rgba(149, 165, 166, 0.3); color: #d5dbdb; }
.badge-status-издадена { background: rgba(93, 173, 226, 0.3); color: #b3d9ff; }
.badge-status-платена { background: rgba(82, 199, 122, 0.3); color: #a8f0c0; }
.badge-status-просрочена { background: rgba(231, 76, 60, 0.3); color: #ff9999; }
.badge-status-анулирана { background: rgba(149, 165, 166, 0.3); color: #bdc3c7; }
/* Backwards compatibility */
.badge-status-draft { background: rgba(149, 165, 166, 0.3); color: #d5dbdb; }
.badge-status-issued { background: rgba(93, 173, 226, 0.3); color: #b3d9ff; }
.badge-status-paid { background: rgba(82, 199, 122, 0.3); color: #a8f0c0; }
.badge-status-overdue { background: rgba(231, 76, 60, 0.3); color: #ff9999; }
.badge-status-cancelled { background: rgba(149, 165, 166, 0.3); color: #bdc3c7; }

.grid-two {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
}

.inline-form {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
}

.inline-form button {
    width: auto;
}

.auth-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: linear-gradient(135deg, #0f172a, #1e293b);
}

.auth-card {
    background: rgba(15, 23, 42, 0.9);
    padding: 32px;
    border-radius: 16px;
    width: 320px;
    box-shadow: 0 18px 36px rgba(2, 8, 23, 0.6);
}

.auth-card h1 {
    margin-top: 0;
    text-align: center;
}

/* Autocomplete styling */
input[list]::-webkit-calendar-picker-indicator {
    opacity: 0.6;
    cursor: pointer;
}

input[list]:hover::-webkit-calendar-picker-indicator {

/* Активен линк в менюто */
.sidebar a.active,
.sidebar a[aria-current="page"] {
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.25), rgba(93, 173, 226, 0.18));
    box-shadow: inset 3px 0 0 var(--accent);
    transform: none;
}
    opacity: 1;
}

/* Charts and Analytics */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.chart-card {
    min-height: 350px;
    display: flex;
    flex-direction: column;
}

.chart-card h3 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.25rem;
    color: var(--accent-light);
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 12px;
    font-weight: 600;
}

.chart-card canvas {
    flex: 1;
    max-height: 280px;
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 10px;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px;
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.05), rgba(88, 166, 255, 0.02));
    border-radius: 8px;
    border-left: 3px solid var(--accent);
    transition: all 0.3s ease;
}

.summary-item:hover {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.1), rgba(88, 166, 255, 0.05));
    transform: translateX(5px);
    box-shadow: 0 4px 12px var(--shadow);
}

.summary-icon {
    font-size: 2rem;
    line-height: 1;
}

.summary-item strong {
    display: block;
    font-size: 2rem;
    color: var(--accent-light);
    margin-bottom: 5px;
    font-weight: 700;
}

.summary-item small {
    display: block;
    font-size: 0.95rem;
    color: var(--text-muted);
}

@media (max-width: 860px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: sticky;
        top: 0;
        z-index: 10;
        display: flex;
        overflow-x: auto;
        gap: 8px;
    }

    .sidebar nav {
        flex-direction: row;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .summary-stats {
        grid-template-columns: 1fr;
    }

    .content {
        padding: 20px 16px;
    }

    h1 {
        font-size: 32px;
    }

    .stat-value {
        font-size: 40px;
    }

    .grid-two {
        grid-template-columns: 1fr;
    }
}

/* Бутони за действия */
.btn-edit, .btn-delete {
    padding: 10px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    margin: 2px;
    white-space: nowrap;
}

.btn-edit {
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.3), rgba(93, 173, 226, 0.2));
    color: #ffffff;
    border: 1px solid rgba(93, 173, 226, 0.4);
}

.btn-edit:hover {
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.4), rgba(93, 173, 226, 0.3));
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(93, 173, 226, 0.3);
}

.btn-delete {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.3), rgba(231, 76, 60, 0.2));
    color: #ffffff;
    border: 1px solid rgba(231, 76, 60, 0.4);
}

.btn-delete:hover {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.4), rgba(231, 76, 60, 0.3));
    border-color: var(--error);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(231, 76, 60, 0.3);
}

/* Flatpickr Calendar стилове */
.flatpickr-calendar {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-light) !important;
    box-shadow: 0 12px 32px var(--shadow) !important;
    border-radius: 8px !important;
}

.flatpickr-months {
    background: var(--bg) !important;
    border-radius: 8px 8px 0 0 !important;
}

.flatpickr-current-month .flatpickr-monthDropdown-months,
.flatpickr-current-month input.cur-year {
    background: var(--bg-tertiary) !important;
    color: var(--text) !important;
    font-weight: 600 !important;
}

.flatpickr-day {
    color: var(--text-secondary) !important;
    border-radius: 6px !important;
}

.flatpickr-day:hover {
    background: rgba(88, 166, 255, 0.15) !important;
    border-color: var(--accent) !important;
    color: var(--accent-light) !important;
}

.flatpickr-day.today {
    border-color: var(--accent) !important;
    background: rgba(88, 166, 255, 0.1) !important;
    font-weight: 700 !important;
}

.flatpickr-day.selected {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark)) !important;
    border-color: var(--accent) !important;
    color: #ffffff !important;
    font-weight: 700 !important;
}

.flatpickr-weekday {
    color: var(--text-muted) !important;
    font-weight: 600 !important;
}

span.flatpickr-weekday {
    background: var(--bg) !important;
}

.flatpickr-months .flatpickr-month,
.flatpickr-months .flatpickr-prev-month,
.flatpickr-months .flatpickr-next-month {
    color: var(--text) !important;
    fill: var(--text) !important;
}

.flatpickr-months .flatpickr-prev-month:hover svg,
.flatpickr-months .flatpickr-next-month:hover svg {
    fill: var(--accent-light) !important;
}