/* =====================================================================
   A2 Robotics — Sistema de Estoque
   Visual moderno, sóbrio, com leve identidade "tech industrial"
   ===================================================================== */

:root,
:root[data-tema="dark"] {
    /* ========== TEMA ESCURO (padrão) ========== */
    --bg:          #0f1419;
    --bg-elev:    #161c24;
    --bg-card:    #1c232d;
    --bg-input:   #0d1117;
    --border:     #2a3441;
    --border-strong: #3a4757;
    --text:       #e6edf3;
    --text-dim:   #8b96a5;
    --text-muted: #5b6573;

    --accent:     #00d68f;
    --accent-dark:#00a872;
    --accent-soft:rgba(0, 214, 143, 0.12);

    --warn:       #ffb454;
    --danger:     #ff5d6c;
    --info:       #6ab7ff;

    --radius:     8px;
    --radius-sm:  4px;
    --shadow:     0 4px 16px rgba(0,0,0,0.3);
    --shadow-lg:  0 10px 40px rgba(0,0,0,0.5);

    --font-display: 'Space Grotesk', system-ui, sans-serif;
    --font-mono:    'JetBrains Mono', 'Courier New', monospace;
}

/* ========== TEMA CLARO ========== */
:root[data-tema="light"] {
    --bg:          #f4f6f9;
    --bg-elev:    #ffffff;
    --bg-card:    #ffffff;
    --bg-input:   #f7f9fc;
    --border:     #e2e7ef;
    --border-strong: #c8d0db;
    --text:       #1a202c;
    --text-dim:   #6b7588;
    --text-muted: #9ba4b3;

    --accent:     #00a872;
    --accent-dark:#00875c;
    --accent-soft:rgba(0, 168, 114, 0.12);

    --warn:       #d97706;
    --danger:     #dc2626;
    --info:       #2563eb;

    --shadow:     0 2px 8px rgba(20, 30, 50, 0.06);
    --shadow-lg:  0 10px 30px rgba(20, 30, 50, 0.1);
}

/* Override sutil pro tema claro */
:root[data-tema="light"] body {
    background-image:
        radial-gradient(circle at 20% 0%, rgba(0, 168, 114, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 80% 100%, rgba(37, 99, 235, 0.03) 0%, transparent 50%);
}

:root[data-tema="light"] .topbar {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 3px rgba(20, 30, 50, 0.05);
}

:root[data-tema="light"] .brand-mark {
    color: #ffffff;
}

:root[data-tema="light"] .btn-logout {
    background: var(--bg-input);
}

:root[data-tema="light"] .modal-overlay {
    background: rgba(20, 30, 50, 0.5);
}

/* Transição suave ao trocar tema */
body, .card, .topbar, .stat, .form-input, .form-select, .form-textarea,
.table-wrap, .btn, .action-card, .chart-wrap {
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

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

html, body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-display);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

body {
    background-image:
        radial-gradient(circle at 20% 0%, rgba(0, 214, 143, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 80% 100%, rgba(106, 183, 255, 0.03) 0%, transparent 50%);
    background-attachment: fixed;
}

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

/* ---------------------- TOPBAR ------------------------------------- */
.topbar {
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.topbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 12px 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text) !important;
    font-weight: 700;
}

.brand-mark {
    background: var(--accent);
    color: var(--bg);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: grid;
    place-items: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: -0.5px;
}

.brand-text {
    font-size: 15px;
    line-height: 1.1;
}

.brand-text small {
    color: var(--text-dim);
    font-weight: 400;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    margin-left: 12px;
}

.main-nav a {
    color: var(--text-dim);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
}

.main-nav a:hover {
    background: var(--bg-card);
    color: var(--text);
}

.main-nav a.nav-admin {
    color: var(--accent);
}

.main-nav a.nav-admin:hover {
    background: var(--accent-soft);
}

.nav-sep {
    width: 1px;
    height: 18px;
    background: var(--border-strong);
    margin: 0 8px;
}

.user-box {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 1.2;
}

.user-name {
    font-size: 13px;
    font-weight: 600;
}

.user-role {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    font-family: var(--font-mono);
}

.user-role.role-admin {
    color: var(--accent);
}

.btn-logout {
    background: var(--bg-card);
    color: var(--text-dim) !important;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: grid;
    place-items: center;
    font-size: 16px;
    transition: background 0.15s, color 0.15s;
}

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

/* ---------------------- CONTAINER ---------------------------------- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 24px;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.page-title small {
    display: block;
    color: var(--text-dim);
    font-size: 13px;
    font-weight: 400;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 4px;
}

/* ---------------------- CARDS -------------------------------------- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}

.card-title {
    font-size: 15px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    margin-bottom: 16px;
    font-family: var(--font-mono);
    font-weight: 500;
}

/* ---------------------- GRID DE BOTÕES (HOME) ---------------------- */
.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.action-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    color: var(--text) !important;
    transition: transform 0.15s, border-color 0.15s, background 0.15s;
    display: block;
    position: relative;
    overflow: hidden;
}

.action-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.2s;
}

.action-card:hover {
    background: var(--bg-elev);
    border-color: var(--border-strong);
    transform: translateY(-2px);
}

.action-card:hover::before {
    transform: scaleY(1);
}

.action-card-icon {
    font-size: 22px;
    margin-bottom: 12px;
    display: inline-block;
    color: var(--accent);
}

.action-card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.action-card-desc {
    font-size: 12px;
    color: var(--text-dim);
}

/* ---------------------- FORMULÁRIOS -------------------------------- */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-label .required {
    color: var(--accent);
    margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.15s, background 0.15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-elev);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 640px) {
    .form-row { grid-template-columns: 1fr; }
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 24px;
    flex-wrap: wrap;
}

/* ---------------------- BOTÕES ------------------------------------- */
.btn {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn:hover {
    background: var(--bg-elev);
    border-color: var(--border-strong);
}

.btn-primary {
    background: var(--accent);
    color: var(--bg) !important;
    border-color: var(--accent);
    font-weight: 600;
}

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

.btn-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: white !important;
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--text-dim);
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* ---------------------- TABELA ------------------------------------- */
.table-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table thead th {
    background: var(--bg-elev);
    text-align: left;
    padding: 12px 16px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-dim);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

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

.table tbody tr:hover {
    background: var(--bg-elev);
}

.table .num {
    font-family: var(--font-mono);
    text-align: right;
}

.table .actions-cell {
    text-align: right;
    white-space: nowrap;
}

.table .actions-cell .btn {
    margin-left: 4px;
}

/* badges (etiquetas) */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 100px;
    font-size: 11px;
    font-family: var(--font-mono);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-admin   { background: var(--accent-soft); color: var(--accent); }
.badge-funcionario { background: rgba(106,183,255,0.12); color: var(--info); }
.badge-zerado  { background: rgba(255,93,108,0.15); color: var(--danger); }
.badge-baixo   { background: rgba(255,180,84,0.15); color: var(--warn); }
.badge-ok      { background: var(--accent-soft); color: var(--accent); }
.badge-inativo { background: rgba(139,150,165,0.15); color: var(--text-dim); }

.op-adicao    { color: var(--accent); }
.op-subtracao { color: var(--danger); }

/* ---------------------- FLASH MESSAGES ----------------------------- */
.flash {
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 13px;
    border-left: 3px solid;
}

.flash-success { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.flash-error   { background: rgba(255,93,108,0.1); color: var(--danger); border-color: var(--danger); }
.flash-warning { background: rgba(255,180,84,0.1); color: var(--warn);   border-color: var(--warn); }
.flash-info    { background: rgba(106,183,255,0.1); color: var(--info);  border-color: var(--info); }

/* ---------------------- LOGIN PAGE --------------------------------- */
.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 380px;
    box-shadow: var(--shadow-lg);
}

.login-brand {
    text-align: center;
    margin-bottom: 32px;
}

.login-brand .brand-mark {
    width: 56px;
    height: 56px;
    font-size: 22px;
    margin: 0 auto 12px;
}

.login-brand h1 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.login-brand p {
    color: var(--text-dim);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-family: var(--font-mono);
    margin-top: 4px;
}

/* ---------------------- DASHBOARD STATS ---------------------------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.stat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.stat-value.accent { color: var(--accent); }
.stat-value.warn   { color: var(--warn); }
.stat-value.danger { color: var(--danger); }

/* ---------------------- FILTROS ------------------------------------ */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: end;
}

.filter-bar .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 180px;
}

/* ---------------------- FOOTER ------------------------------------- */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* ---------------------- RESPONSIVO --------------------------------- */
@media (max-width: 768px) {
    .topbar-inner {
        flex-wrap: wrap;
        padding: 10px 16px;
    }
    .main-nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
        margin-left: 0;
        padding-bottom: 4px;
    }
    .main-nav a {
        white-space: nowrap;
    }
    .container {
        padding: 20px 16px;
    }
    .user-info {
        align-items: flex-end;
    }
    .user-info .user-name {
        font-size: 12px;
    }
}

/* ---------------------- UTILITIES ---------------------------------- */
.mono { font-family: var(--font-mono); }
.text-dim { color: var(--text-dim); }
.text-muted { color: var(--text-muted); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }