/* Google Sans & Google Sans Text Typography */
@font-face {
  font-family: 'Google Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/googlesans/v70/4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIKli.ttf) format('truetype');
}
@font-face {
  font-family: 'Google Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/googlesans/v70/4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IKli.ttf) format('truetype');
}
@font-face {
  font-family: 'Google Sans';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/googlesans/v70/4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrzjJ6li.ttf) format('truetype');
}
@font-face {
  font-family: 'Google Sans Text';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/googlesanstext/v25/5aUu9-KzpRiLCAt4Unrc-xIKmCU5mE0.ttf) format('truetype');
}
@font-face {
  font-family: 'Google Sans Text';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/googlesanstext/v25/5aUp9-KzpRiLCAt4Unrc-xIKmCU5oPFTrm8.ttf) format('truetype');
}

/* NK App - Light Theme Mobile-First Responsive CSS */
:root {
    --nk-bg: #F8FAFC;
    --nk-surface: #FFFFFF;
    --nk-surface-alt: #F1F5F9;
    --nk-border: #E2E8F0;
    --nk-border-hover: #CBD5E1;
    --nk-primary: #F34213;
    --nk-primary-hover: #D93307;
    --nk-primary-light: #FFF5F2;
    --nk-text-main: #0F172A;
    --nk-text-muted: #64748B;
    --nk-text-light: #94A3B8;
    --nk-success: #10B981;
    --nk-success-bg: #ECFDF5;
    --nk-danger: #EF4444;
    --nk-danger-bg: #FEF2F2;
    --nk-warning: #F59E0B;
    --nk-warning-bg: #FFFBEB;
    --nk-info: #3B82F6;
    --nk-info-bg: #EFF6FF;
    --nk-font-main: 'Google Sans', 'Google Sans Text', -apple-system, BlinkMacSystemFont, sans-serif;
    --nk-font-display: 'Google Sans', 'Google Sans Text', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    box-shadow: none !important;
}

body {
    background-color: var(--nk-bg);
    color: var(--nk-text-main);
    font-family: var(--nk-font-main);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Layout */
.nk-app-container {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

/* Mobile Topbar */
.nk-mobile-topbar {
    display: none;
    background: #FFFFFF;
    border-bottom: 1px solid var(--nk-border);
    padding: 12px 16px;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 40;
}

.nk-mobile-menu-btn {
    background: #F1F5F9;
    border: 1px solid var(--nk-border);
    border-radius: 8px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--nk-text-main);
}

.nk-mobile-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nk-mobile-logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.nk-mobile-title {
    font-family: var(--nk-font-display);
    font-size: 15px;
    font-weight: 800;
    color: var(--nk-text-main);
}

/* Sidebar */
.nk-sidebar {
    width: 260px;
    background: var(--nk-surface);
    border-right: 1px solid var(--nk-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 50;
    transition: transform 0.25s ease-in-out;
}

.nk-sidebar-brand {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--nk-border);
}

.nk-sidebar-logo-img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.nk-brand-title {
    font-family: var(--nk-font-display);
    font-size: 16px;
    font-weight: 800;
    color: var(--nk-text-main);
    line-height: 1.2;
}

.nk-brand-sub {
    font-size: 12px;
    color: var(--nk-text-muted);
    font-weight: 600;
}

/* Sidebar Nav */
.nk-nav {
    padding: 16px 12px;
    flex: 1;
    overflow-y: auto;
}

.nk-nav-section {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--nk-text-light);
    margin: 16px 12px 8px;
}

.nk-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--nk-text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 13.5px;
    border: 1px solid transparent;
    transition: all 0.15s ease;
    margin-bottom: 2px;
}

.nk-nav-link svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.nk-nav-link:hover {
    background: var(--nk-primary-light);
    color: var(--nk-primary);
    border-color: var(--nk-primary-light);
}

.nk-nav-link.active {
    background: var(--nk-primary-light);
    color: var(--nk-primary);
    border-color: rgba(243, 66, 19, 0.2);
    font-weight: 700;
}

/* Sidebar Bottom User Profile */
.nk-sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--nk-border);
    background: var(--nk-surface-alt);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nk-user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nk-user-avatar {
    width: 36px;
    height: 36px;
    background: var(--nk-primary);
    color: #FFF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 13px;
    font-family: var(--nk-font-display);
}

.nk-user-name {
    font-weight: 700;
    font-size: 13px;
    color: var(--nk-text-main);
}

.nk-user-role {
    font-size: 12px;
    color: var(--nk-text-muted);
}

.nk-lock-btn {
    background: #FFF;
    border: 1px solid var(--nk-border);
    color: var(--nk-danger);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
}

.nk-lock-btn:hover {
    background: var(--nk-danger-bg);
    border-color: var(--nk-danger);
}

/* Backdrop Overlay */
.nk-backdrop {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    z-index: 45;
}

/* Main Body Content Area */
.nk-main-content {
    margin-left: 260px;
    flex: 1;
    padding: 32px;
    max-width: 1300px;
    width: calc(100% - 260px);
}

/* Page Header */
.nk-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--nk-border);
    flex-wrap: wrap;
    gap: 16px;
}

.nk-page-title {
    font-family: var(--nk-font-display);
    font-size: 22px;
    font-weight: 800;
    color: var(--nk-text-main);
    line-height: 1.3;
}

.nk-page-subtitle {
    font-size: 13px;
    color: var(--nk-text-muted);
    margin-top: 2px;
}

/* Metrics Count Grid */
.nk-metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.nk-metric-card {
    background: var(--nk-surface);
    border: 1px solid var(--nk-border);
    border-radius: 12px;
    padding: 18px;
}

.nk-metric-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--nk-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 6px;
}

.nk-metric-value {
    font-family: var(--nk-font-display);
    font-size: 22px;
    font-weight: 800;
    color: var(--nk-text-main);
    word-break: break-word;
}

.nk-metric-value.revenue { color: var(--nk-success); }
.nk-metric-value.expense { color: var(--nk-primary); }
.nk-metric-value.invoices { color: var(--nk-info); }
.nk-metric-value.customers { color: var(--nk-warning); }

/* Content Card */
.nk-card {
    background: var(--nk-surface);
    border: 1px solid var(--nk-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.nk-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--nk-border);
}

.nk-card-title {
    font-family: var(--nk-font-display);
    font-size: 16px;
    font-weight: 800;
    color: var(--nk-text-main);
}

/* Buttons */
.nk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 13.5px;
    font-weight: 700;
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
    transition: all 0.15s ease;
}

.nk-btn-primary {
    background: var(--nk-primary);
    color: #FFFFFF;
    border-color: var(--nk-primary);
}

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

.nk-btn-secondary {
    background: var(--nk-surface);
    color: var(--nk-text-main);
    border-color: var(--nk-border);
}

.nk-btn-secondary:hover {
    background: var(--nk-surface-alt);
    border-color: var(--nk-border-hover);
}

/* Media Queries for Mobile Responsiveness */
@media (max-width: 768px) {
    .nk-mobile-topbar {
        display: flex;
    }

    .nk-sidebar {
        transform: translateX(-100%);
    }

    .nk-sidebar.open {
        transform: translateX(0);
    }

    .nk-backdrop.open {
        display: block;
    }

    .nk-main-content {
        margin-left: 0;
        width: 100%;
        padding: 16px;
    }

    .nk-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .nk-header .nk-btn {
        width: 100%;
    }

    .nk-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .nk-metric-card {
        padding: 14px;
    }

    .nk-metric-value {
        font-size: 19px;
    }

    .nk-card {
        padding: 16px;
    }

    .nk-card shortcuts {
        flex-direction: column;
    }

    .nk-btn {
        width: 100%;
    }
}

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