/* CentraMEDKIT Inventory Management — Modern */

:root {
    --inv-ink: #0f172a;
    --inv-ink-700: #334155;
    --inv-ink-500: #64748b;
    --inv-ink-400: #94a3b8;
    --inv-line: #e2e8f0;
    --inv-brand: #2563eb;
    --inv-brand-700: #1d4ed8;
    --inv-green: #059669;
    --inv-blue: #2563eb;
    --inv-amber: #b45309;
    --inv-red: #dc2626;
    --inv-violet: #7c3aed;
    --inv-teal: #0d9488;
    --inv-orange: #ea580c;
    --inv-indigo: #4f46e5;
    --inv-surface: #ffffff;
}

.inv-wrap {
    padding: 1.5rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ---------- Header ---------- */

.inv-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.inv-title {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--inv-ink);
}

.inv-subtitle {
    margin: 0.3rem 0 0;
    font-size: 0.88rem;
    color: var(--inv-ink-500);
}

.inv-header-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.inv-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 1.1rem;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.inv-btn svg {
    width: 15px;
    height: 15px;
}

.inv-btn-primary {
    background: var(--inv-brand);
    color: #fff;
    box-shadow: 0 8px 20px -8px rgba(37, 99, 235, 0.6);
}

.inv-btn-primary:hover {
    background: var(--inv-brand-700);
    color: #fff;
    transform: translateY(-1px);
}

.inv-btn-outline {
    background: #fff;
    color: var(--inv-ink-700);
    border-color: var(--inv-line);
}

.inv-btn-outline:hover {
    border-color: var(--inv-brand);
    color: var(--inv-brand);
}

/* ---------- Stock health strip ---------- */

.inv-health {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.05);
    border-radius: 14px;
    padding: 0.9rem 1.25rem;
    box-shadow: 0 8px 24px -16px rgba(2, 24, 72, 0.25);
    flex-wrap: wrap;
}

.inv-health-track {
    flex: 1 1 260px;
    height: 10px;
    border-radius: 999px;
    background: #eef2f7;
    overflow: hidden;
    display: flex;
}

.inv-health-fill {
    height: 100%;
    transition: width 0.4s ease;
}

.inv-health-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--inv-ink-500);
    white-space: nowrap;
}

.inv-health-label strong {
    color: var(--inv-ink);
}

/* ---------- Stats ---------- */

.inv-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.inv-stat {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--inv-surface);
    border: 1px solid rgba(15, 23, 42, 0.05);
    border-radius: 14px;
    box-shadow: 0 8px 24px -16px rgba(2, 24, 72, 0.25);
    padding: 1.1rem 1.25rem;
    position: relative;
    overflow: hidden;
}

.inv-stat::after {
    content: '';
    position: absolute;
    right: -22px;
    top: -22px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    opacity: 0.06;
    pointer-events: none;
}

.inv-stat-icon {
    flex: none;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.inv-stat-icon svg {
    width: 22px;
    height: 22px;
}

.inv-stat-blue .inv-stat-icon { background: rgba(59, 130, 246, 0.12); color: var(--inv-blue); }
.inv-stat-blue::after { background: var(--inv-blue); }
.inv-stat-amber .inv-stat-icon { background: rgba(245, 158, 11, 0.14); color: var(--inv-amber); }
.inv-stat-amber::after { background: var(--inv-amber); }
.inv-stat-red .inv-stat-icon { background: rgba(239, 68, 68, 0.12); color: var(--inv-red); }
.inv-stat-red::after { background: var(--inv-red); }
.inv-stat-green .inv-stat-icon { background: rgba(16, 185, 129, 0.12); color: var(--inv-green); }
.inv-stat-green::after { background: var(--inv-green); }
.inv-stat-violet .inv-stat-icon { background: rgba(124, 58, 237, 0.12); color: var(--inv-violet); }
.inv-stat-violet::after { background: var(--inv-violet); }
.inv-stat-orange .inv-stat-icon { background: rgba(234, 88, 12, 0.12); color: var(--inv-orange); }
.inv-stat-orange::after { background: var(--inv-orange); }

.inv-stat-number {
    display: block;
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--inv-ink);
    line-height: 1.2;
}

.inv-stat-number small {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--inv-ink-400);
}

.inv-stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--inv-ink-500);
    font-weight: 500;
    margin-top: 0.1rem;
}

/* ---------- Management cards ---------- */

.inv-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.1rem;
}

.inv-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.05);
    border-radius: 16px;
    box-shadow: 0 8px 24px -16px rgba(2, 24, 72, 0.25);
    padding: 1.5rem 1.5rem 1.4rem;
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    position: relative;
    overflow: hidden;
}

.inv-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 34px -16px rgba(2, 24, 72, 0.3);
}

.inv-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.inv-card:hover::before { opacity: 1; }

.inv-card-green::before { background: linear-gradient(90deg, #10b981, #059669); }
.inv-card-blue::before { background: linear-gradient(90deg, #3b82f6, #2563eb); }
.inv-card-violet::before { background: linear-gradient(90deg, #8b5cf6, #7c3aed); }
.inv-card-teal::before { background: linear-gradient(90deg, #14b8a6, #0d9488); }
.inv-card-amber::before { background: linear-gradient(90deg, #f59e0b, #d97706); }
.inv-card-indigo::before { background: linear-gradient(90deg, #6366f1, #4f46e5); }

.inv-card-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 0.9rem;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.inv-card-icon svg {
    width: 26px;
    height: 26px;
}

.inv-card-green .inv-card-icon { background: rgba(16, 185, 129, 0.12); color: var(--inv-green); }
.inv-card-blue .inv-card-icon { background: rgba(59, 130, 246, 0.12); color: var(--inv-blue); }
.inv-card-violet .inv-card-icon { background: rgba(124, 58, 237, 0.12); color: var(--inv-violet); }
.inv-card-teal .inv-card-icon { background: rgba(20, 184, 166, 0.12); color: var(--inv-teal); }
.inv-card-amber .inv-card-icon { background: rgba(245, 158, 11, 0.14); color: var(--inv-amber); }
.inv-card-indigo .inv-card-icon { background: rgba(99, 102, 241, 0.12); color: var(--inv-indigo); }

.inv-card-title {
    margin: 0 0 0.45rem;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--inv-ink);
}

.inv-card-desc {
    margin: 0 0 1rem;
    color: var(--inv-ink-500);
    font-size: 0.84rem;
    line-height: 1.55;
    flex: 1;
}

.inv-card-action {
    align-self: center;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1.1rem;
    border-radius: 9px;
    font-weight: 600;
    font-size: 0.82rem;
    transition: all 0.2s ease;
}

.inv-card-action svg {
    width: 13px;
    height: 13px;
}

.inv-card-green .inv-card-action { background: rgba(16, 185, 129, 0.12); color: var(--inv-green); }
.inv-card-blue .inv-card-action { background: rgba(59, 130, 246, 0.12); color: var(--inv-blue); }
.inv-card-violet .inv-card-action { background: rgba(124, 58, 237, 0.12); color: var(--inv-violet); }
.inv-card-teal .inv-card-action { background: rgba(20, 184, 166, 0.12); color: var(--inv-teal); }
.inv-card-amber .inv-card-action { background: rgba(245, 158, 11, 0.14); color: var(--inv-amber); }
.inv-card-indigo .inv-card-action { background: rgba(99, 102, 241, 0.12); color: var(--inv-indigo); }

.inv-card:hover .inv-card-action { color: #fff; }
.inv-card-green:hover .inv-card-action { background: var(--inv-green); }
.inv-card-blue:hover .inv-card-action { background: var(--inv-blue); }
.inv-card-violet:hover .inv-card-action { background: var(--inv-violet); }
.inv-card-teal:hover .inv-card-action { background: var(--inv-teal); }
.inv-card-amber:hover .inv-card-action { background: var(--inv-amber); }
.inv-card-indigo:hover .inv-card-action { background: var(--inv-indigo); }

/* ---------- Bottom grid ---------- */

.inv-bottom {
    display: grid;
    grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr);
    gap: 1.1rem;
    align-items: start;
}

.inv-panel {
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.05);
    border-radius: 16px;
    box-shadow: 0 8px 24px -16px rgba(2, 24, 72, 0.25);
    overflow: hidden;
}

.inv-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid #eef2f7;
}

.inv-panel-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--inv-ink);
}

.inv-panel-title svg {
    width: 17px;
    height: 17px;
    color: var(--inv-brand);
}

.inv-panel-link {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--inv-brand);
    text-decoration: none;
}

.inv-panel-link:hover {
    text-decoration: underline;
}

/* ---------- Activity feed ---------- */

.inv-feed {
    padding: 0.35rem 1.25rem 1rem;
}

.inv-feed-empty {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--inv-ink-400);
}

.inv-feed-item {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.inv-feed-item:last-child {
    border-bottom: none;
}

.inv-feed-badge {
    flex: none;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 800;
}

.inv-feed-badge-in { background: rgba(16, 185, 129, 0.14); color: var(--inv-green); }
.inv-feed-badge-out { background: rgba(239, 68, 68, 0.12); color: var(--inv-red); }
.inv-feed-badge-adj { background: rgba(59, 130, 246, 0.12); color: var(--inv-blue); }

.inv-feed-body {
    flex: 1;
    min-width: 0;
}

.inv-feed-title {
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--inv-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.inv-feed-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-size: 0.74rem;
    color: var(--inv-ink-400);
    margin-top: 0.15rem;
}

.inv-feed-right {
    flex: none;
    text-align: right;
}

.inv-feed-qty {
    font-size: 0.88rem;
    font-weight: 800;
}

.inv-feed-qty-up { color: var(--inv-green); }
.inv-feed-qty-down { color: var(--inv-red); }

.inv-feed-value {
    font-size: 0.74rem;
    color: var(--inv-ink-400);
}

/* ---------- Stock alerts ---------- */

.inv-alerts {
    padding: 0.35rem 1.25rem 1rem;
}

.inv-alert-group {
    margin-bottom: 0.9rem;
}

.inv-alert-group:last-child {
    margin-bottom: 0;
}

.inv-alert-group-title {
    font-size: 0.74rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--inv-ink-400);
    margin: 0 0 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.inv-alert-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.inv-alert-item:last-child {
    border-bottom: none;
}

.inv-alert-name {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--inv-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.inv-alert-count {
    flex: none;
    font-size: 0.76rem;
    font-weight: 700;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
}

.inv-alert-count-low { background: rgba(245, 158, 11, 0.14); color: var(--inv-amber); }
.inv-alert-count-out { background: rgba(239, 68, 68, 0.12); color: var(--inv-red); }

.inv-alerts-empty {
    text-align: center;
    padding: 1.5rem 1rem;
    color: var(--inv-ink-400);
    font-size: 0.85rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
    .inv-bottom {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .inv-wrap {
        padding: 1rem;
    }

    .inv-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .inv-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .inv-stats {
        grid-template-columns: 1fr;
    }

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

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}