:root {
    --navy: #2d4361;
    --navy-dark: #1f2f45;
    --bg: #f5f7fa;
    --card: #ffffff;
    --border: #e5e9ef;
    --text: #1f2937;
    --text-muted: #6b7280;
    --danger: #dc2626;
    --danger-bg: #fdecec;
    --radius: 12px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
th.sortable:focus-visible {
    outline: 2px solid var(--navy);
    outline-offset: 2px;
}

/* LOGIN */

html:has(.login-box) {
    height: 100%;
}

body:has(.login-box) {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at top, #eef1f6 0%, var(--bg) 60%);
}

.login-box {
    width: 100%;
    max-width: 380px;
    margin: 12vh auto;
    padding: 32px 24px;
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(45,67,97,0.12);
    text-align: center;
}

.login-box h2 {
    margin: 0 0 20px;
    font-size: 1.2rem;
    color: var(--text);
}

.logo {
    max-width: 100%;
    width: 180px;
    height: auto;
    margin-bottom: 20px;
    padding: 16px 20px;
    background: var(--navy);
    border-radius: 10px;
}

.error-msg {
    background: var(--danger-bg);
    color: var(--danger);
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
    margin: 0 0 14px;
}

input {
    width: 100%;
    padding: 12px 14px;
    font-size: 16px;
    border-radius: 8px;
    border: 1px solid #ddd;
    font-family: inherit;
}

input:focus {
    outline: none;
    border-color: var(--navy);
}

button {
    width: 100%;
    padding: 12px;
    margin-top: 15px;
    background: var(--navy);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    cursor: pointer;
    transition: 0.2s;
}

button:hover {
    background: var(--navy-dark);
}

/* TOPBAR */

.topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 16px;
    padding: 12px 16px;
    background: var(--card);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo-small {
    height: 34px;
    padding: 6px 10px;
    background: var(--navy);
    border-radius: 8px;
    flex-shrink: 0;
}

.search-wrap {
    position: relative;
    flex: 1 1 200px;
    min-width: 0;
    order: 3;
}

#search {
    width: 100%;
    padding-right: 36px;
}

.clear-search {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    margin: 0;
    padding: 0;
    line-height: 1;
    font-size: 18px;
    background: transparent;
    color: var(--text-muted);
    border-radius: 50%;
}

.clear-search:hover {
    background: var(--border);
    color: var(--text);
}

.logout-btn {
    text-decoration: none;
    background: var(--navy);
    color: white;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    white-space: nowrap;
    transition: 0.2s;
    margin-left: auto;
    order: 2;
}

.logout-btn:hover {
    background: var(--navy-dark);
}

@media (min-width: 640px) {
    .topbar {
        display: grid;
        grid-template-columns: auto 1fr auto;
        flex-wrap: nowrap;
    }
    .search-wrap {
        order: initial;
        max-width: 400px;
        margin: 0 auto;
    }
    .logout-btn {
        order: initial;
        margin-left: 0;
    }
}

/* TABELA */

.table-wrap {
    width: 95%;
    max-width: 1100px;
    margin: 14px auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

th {
    background: #f0f2f5;
    text-align: left;
    color: var(--text-muted);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

th.sortable {
    cursor: pointer;
    user-select: none;
}

th.sortable:hover {
    color: var(--navy);
}

th.sortable::after {
    content: '\21C5';
    display: inline-block;
    margin-left: 6px;
    font-size: 11px;
    opacity: 0.35;
}

th.sortable.sort-asc::after {
    content: '\2191';
    opacity: 1;
    color: var(--navy);
}

th.sortable.sort-desc::after {
    content: '\2193';
    opacity: 1;
    color: var(--navy);
}

th, td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
}

.col-num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

tr:hover {
    background: #fafafa;
}

tbody tr:last-child td {
    border-bottom: none;
}

.low {
    color: var(--danger);
    font-weight: 700;
}

.empty-state {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* RESPONSIVE TABLE -> CARDS */

@media (max-width: 700px) {
    .table-wrap {
        width: 92%;
    }

    table, thead, tbody, tr, td {
        display: block;
        width: 100%;
    }

    thead {
        display: none;
    }

    tbody tr {
        border: 1px solid var(--border);
        border-radius: 10px;
        margin-bottom: 12px;
        padding: 8px 14px;
        background: var(--card);
    }

    tbody tr:hover {
        background: var(--card);
    }

    td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        text-align: right;
        border-bottom: 1px solid var(--border);
        padding: 10px 0;
    }

    td:last-child {
        border-bottom: none;
    }

    td::before {
        content: attr(data-label);
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.03em;
        color: var(--text-muted);
        text-align: left;
        font-weight: 600;
    }

    td[data-label="#"] {
        display: none;
    }
}

/* PAGINACJA */

.pagination {
    width: 92%;
    max-width: 1100px;
    margin: 0 auto 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 14px 20px;
}

.pagination button {
    width: auto;
    margin-top: 0;
    padding: 10px 18px;
    background: var(--navy);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: 0.2s;
}

.pagination button:hover:not(:disabled) {
    background: var(--navy-dark);
}

.pagination button:disabled {
    background: #c7ccd4;
    cursor: default;
}

.pagination #pageInfo {
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
}