:root {
    --palta: #5BBD00;
    --palta-light: #7ED321;
    --palta-dark: #4A9900;
    --palta-bg: #F8FAF4;
    --palta-surface: #FFFFFF;
    --palta-text: #1A2E1C;
    --palta-text-secondary: #6B7F6D;
    --palta-border: #E8EDE5;
    --palta-border-light: #F0F4ED;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
    --radius: 16px;
    --radius-sm: 10px;
    --badge-sold-bg: #E8F5E9;
    --badge-sold-text: #2E7D32;
    --badge-stock-bg: #E3F2FD;
    --badge-stock-text: #1565C0;
    --badge-pending-bg: #FFF8E1;
    --badge-pending-text: #E65100;
    --badge-returned-bg: #FFEBEE;
    --badge-returned-text: #C62828;
    --badge-pagar-bg: #FFF3E0;
    --badge-pagar-text: #E65100;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', system-ui, sans-serif;
    background: var(--palta-bg);
    color: var(--palta-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* ═══════════ HEADER ═══════════ */
header {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--palta-border-light);
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    height: 56px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none !important;
    flex-shrink: 0;
    transition: opacity 0.2s;
}
.logo-container:hover { opacity: 0.8; }
.logo-svg {
    width: 32px;
    height: 32px;
    display: block;
}
.logo-text-group { display: flex; flex-direction: column; }
.logo-title {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--palta-dark);
    letter-spacing: 2.5px;
    text-transform: uppercase;
    line-height: 1;
}
.logo-subtitle {
    font-size: 0.5rem;
    color: var(--palta-text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 2px;
}

header nav { display: flex; gap: 0.15rem; align-items: center; }
header nav a {
    color: var(--palta-text-secondary);
    text-decoration: none;
    padding: 0.35rem 0.75rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.15s;
    position: relative;
}
header nav a:hover {
    color: var(--palta-dark);
    background: rgba(91, 189, 0, 0.06);
}
header nav a.active {
    color: var(--palta-dark);
    font-weight: 600;
    background: rgba(91, 189, 0, 0.08);
}

/* ═══════════ CONTAINER ═══════════ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem 3rem;
}

/* ═══════════ HEADINGS ═══════════ */
h1 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--palta-text);
    margin-bottom: 1.25rem;
    letter-spacing: -0.3px;
}
h2 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--palta-text);
    margin-bottom: 0.75rem;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

/* ═══════════ CARDS ═══════════ */
.card {
    background: var(--palta-surface);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid var(--palta-border-light);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s;
}
.card:hover { box-shadow: var(--shadow-md); }
.card p { margin-bottom: 0.25rem; font-size: 0.88rem; color: var(--palta-text-secondary); }
.card p strong { color: var(--palta-text); font-weight: 600; }
.card > p:first-child { color: var(--palta-text); }

/* ═══════════ BADGES ═══════════ */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 100px;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.badge-stock { background: var(--badge-stock-bg); color: var(--badge-stock-text); }
.badge-sold { background: var(--badge-sold-bg); color: var(--badge-sold-text); }
.badge-returned { background: var(--badge-returned-bg); color: var(--badge-returned-text); }
.badge-pending { background: var(--badge-pending-bg); color: var(--badge-pending-text); }
.badge-pagar { background: var(--badge-pagar-bg); color: var(--badge-pagar-text); }

/* ═══════════ STATS ═══════════ */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}
.stat-card {
    background: var(--palta-surface);
    border-radius: var(--radius-sm);
    padding: 1rem;
    text-align: left;
    border: 1px solid var(--palta-border-light);
    box-shadow: var(--shadow-sm);
}
.stat-card .num {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--palta-text);
    line-height: 1.1;
}
.stat-card .num.accent { color: var(--palta); }
.stat-card .label {
    font-size: 0.7rem;
    color: var(--palta-text-secondary);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 500;
}

/* ═══════════ TABLES ═══════════ */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}
thead th {
    color: var(--palta-text-secondary);
    font-weight: 600;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--palta-border);
    background: var(--palta-bg);
    border-radius: 0;
}
thead th:first-child { border-radius: 8px 0 0 0; }
thead th:last-child { border-radius: 0 8px 0 0; }
td {
    padding: 0.65rem 0.75rem;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--palta-border-light);
    color: var(--palta-text);
}
tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.1s; }
tbody tr:hover td { background: rgba(91, 189, 0, 0.02); }

/* Sortable table headers */
.sortable th a {
    color: var(--palta-dark);
    text-decoration: none;
    transition: opacity 0.15s;
    display: block;
    width: 100%;
}
.sortable th a:hover {
    opacity: 0.7;
    text-decoration: underline;
}
.sortable th a::after {
    content: " ↕";
    font-size: 0.7em;
    opacity: 0.5;
}

/* ═══════════ LINKS ═══════════ */
a { color: var(--palta); font-weight: 500; text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--palta-dark); }

/* ═══════════ BUTTONS ═══════════ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.15s;
    font-family: inherit;
}
.btn-primary {
    background: var(--palta);
    color: white;
}
.btn-primary:hover {
    background: var(--palta-dark);
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(91,189,0,0.25);
}
.btn-danger { background: #FEE2E2; color: #DC2626; }
.btn-danger:hover { background: #FECACA; }
.btn-success { background: var(--palta); color: white; }
.btn-success:hover { background: var(--palta-dark); color: white; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--palta-border);
    color: var(--palta-text-secondary);
}
.btn-outline:hover {
    border-color: var(--palta);
    color: var(--palta);
    background: rgba(91,189,0,0.04);
}

/* ═══════════ FORMS ═══════════ */
input, select, textarea {
    width: 100%;
    padding: 0.55rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--palta-border);
    background: var(--palta-surface);
    color: var(--palta-text);
    font-size: 0.85rem;
    font-family: inherit;
    transition: all 0.15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--palta);
    box-shadow: 0 0 0 3px rgba(91,189,0,0.1);
}
input::placeholder { color: var(--palta-text-secondary); opacity: 0.6; }
label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--palta-text-secondary);
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.form-group { margin-bottom: 0.8rem; }

/* ═══════════ UTILITIES ═══════════ */
.flex-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.mt-1 { margin-top: 0.75rem; }
.mb-1 { margin-bottom: 0.75rem; }
.text-muted { color: var(--palta-text-secondary) !important; }
.text-right { text-align: right; }
.text-center { text-align: center; }

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width: 700px) {
    header .header-inner { gap: 0.75rem; flex-wrap: wrap; }
    header nav { width: 100%; justify-content: center; }
    header nav a { padding: 0.3rem 0.55rem; font-size: 0.75rem; }
    .container { padding: 1rem 1.25rem 2rem; }
    .stats { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
    .stat-card { padding: 0.8rem; }
    .stat-card .num { font-size: 1.2rem; }
    table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    th, td { padding: 0.5rem 0.5rem; font-size: 0.8rem; }
}