@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

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

:root {
    --primary: #1e293b;
    --primary-dark: #0f172a;
    --ink: #0f172a;
    --slate: #475569;
    --muted: #94a3b8;
    --line: #e2e8f0;
    --panel: #ffffff;
    --card: #ffffff;
    --success: #0f172a;
    --danger: #0f172a;
    --warning: #475569;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: #fafafa;
    color: #0f172a;
    min-height: 100vh;
    line-height: 1.4;
    padding-bottom: 1.5rem;
}

.page-shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 1rem 1.5rem;
}

@media (min-width: 640px) {
    .page-shell {
        padding: 0 1.5rem 2rem;
    }
}

.navbar {
    position: sticky;
    top: 0;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
    padding: 0.75rem 0;
    z-index: 10;
}

.navbar-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

@media (min-width: 640px) {
    .navbar {
        padding: 1rem 0;
    }
    .navbar-content {
        padding: 0 1.5rem;
    }
}

.logo {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    color: #0f172a;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
}

.logo i {
    color: var(--primary);
    font-size: 1rem;
}

@media (min-width: 640px) {
    .logo {
        font-size: 1.25rem;
    }
    .logo i {
        font-size: 1.15rem;
    }
}

.mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--slate);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: auto;
    transition: color 0.15s ease;
}

.mobile-menu-toggle:hover {
    color: var(--primary);
}

@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.nav-links {
    display: none;
    align-items: center;
    gap: 0.5rem;
}

.nav-links.active {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 0.75rem 1rem;
    gap: 0.25rem;
}

.nav-links.active .nav-link {
    width: 100%;
    justify-content: flex-start;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
        position: static;
        flex-direction: row;
        border: none;
        padding: 0;
    }
    .nav-links.active {
        position: static;
        flex-direction: row;
        padding: 0;
        border: none;
    }
}

.nav-link {
    padding: 0.6rem 1rem;
    border-radius: 3px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate);
    text-decoration: none;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
}

.nav-link i {
    font-size: 0.8rem;
    opacity: 0.7;
}

.nav-link:hover {
    background: var(--bg);
    color: var(--primary);
}

.nav-link.active {
    background: var(--bg);
    color: var(--primary);
    font-weight: 600;
}

.nav-link.active i {
    opacity: 1;
}

.user-section {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
    position: relative;
}

.profile-dropdown {
    position: relative;
}

.user-info-link {
    display: none;
    text-decoration: none;
    padding: 0.4rem 0.75rem;
    border-radius: 2px;
    transition: background 0.15s ease;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.user-info-link:hover {
    background: var(--bg);
}

.user-info-link.active {
    background: var(--bg);
}

.user-info-link i {
    flex-shrink: 0;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    min-width: 200px;
    margin-top: 0.5rem;
    z-index: 1000;
}

.dropdown-menu.show {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--slate);
    text-decoration: none;
    font-size: 0.875rem;
    transition: background 0.15s ease;
}

.dropdown-item:hover {
    background: var(--bg);
    color: var(--ink);
}

.dropdown-item i {
    width: 16px;
    text-align: center;
}

.dropdown-item.text-danger {
    color: #dc2626;
}

.dropdown-item.text-danger:hover {
    background: #fee2e2;
    color: #991b1b;
}

.dropdown-divider {
    height: 1px;
    background: var(--line);
    margin: 0.25rem 0;
}

.user-info {
    text-align: right;
    font-size: 0.75rem;
    color: var(--muted);
    min-width: 0;
}

.user-info strong {
    display: block;
    color: #0f172a;
    font-size: 0.85rem;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (min-width: 640px) {
    .user-info-link {
        display: flex;
    }
    .user-section {
        gap: 0.75rem;
    }
}

.btn {
    padding: 0.4rem 1rem;
    border-radius: 2px;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0;
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    white-space: nowrap;
}

@media (min-width: 640px) {
    .btn {
        padding: 0.45rem 1.25rem;
        font-size: 0.85rem;
    }
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--line);
    color: var(--slate);
}

.btn-outline:hover {
    background: #f1f5f9;
    border-color: var(--primary);
    color: var(--primary);
}

.main-stack {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .main-stack {
        gap: 1rem;
    }
}

.panel {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 0.875rem;
}

@media (min-width: 640px) {
    .panel {
        padding: 1rem;
    }
}

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    color: #0f172a;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.page-title i {
    color: var(--primary);
    font-size: 1.1rem;
}

@media (min-width: 640px) {
    .page-title {
        font-size: 1.5rem;
        margin-bottom: 0.75rem;
    }
    .page-title i {
        font-size: 1.35rem;
    }
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

@media (min-width: 640px) {
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 0.75rem;
    }
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    max-width: 600px;
}

@media (min-width: 640px) {
    .action-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.6rem;
    }
}

.stat-card,
.action-card {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 2px;
    padding: 0.75rem;
    transition: all 0.15s ease;
}

.action-card {
    padding: 0.6rem 0.5rem;
}

@media (min-width: 640px) {
    .stat-card {
        padding: 0.875rem;
        border-radius: 3px;
    }
    .action-card {
        padding: 0.7rem 0.6rem;
    }
}

.stat-card:hover,
.action-card:hover {
    border-color: var(--primary);
}

.stat-icon {
    width: 28px;
    height: 28px;
    border-radius: 2px;
    display: grid;
    place-items: center;
    background: #f1f5f9;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

@media (min-width: 640px) {
    .stat-icon {
        width: 32px;
        height: 32px;
        margin-bottom: 0.625rem;
        font-size: 1rem;
    }
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: #0f172a;
    line-height: 1.2;
}

@media (min-width: 640px) {
    .stat-value {
        font-size: 1.5rem;
    }
}

.stat-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
    margin-top: 0.25rem;
}

@media (min-width: 640px) {
    .stat-label {
        font-size: 0.7rem;
    }
}

.action-card {
    text-align: center;
    text-decoration: none;
    color: #0f172a;
    font-size: 0.7rem;
}

@media (min-width: 640px) {
    .action-card {
        font-size: 0.8rem;
    }
}

.action-icon {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: var(--primary);
}

@media (min-width: 640px) {
    .action-icon {
        font-size: 1.1rem;
        margin-bottom: 0.4rem;
    }
}

.card {
    background: #ffffff;
    color: var(--ink);
    border-radius: 3px;
    padding: 1rem;
    border: 1px solid var(--line);
}

@media (min-width: 640px) {
    .card {
        padding: 1.25rem;
    }
}

.card-header {
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

@media (min-width: 640px) {
    .card-header {
        font-size: 0.8rem;
        margin-bottom: 0.875rem;
    }
}

.card-header i {
    color: var(--primary);
}

.card-body {
    color: var(--slate);
    font-size: 0.85rem;
}

@media (min-width: 640px) {
    .card-body {
        font-size: 0.9rem;
    }
}

.info-list {
    display: grid;
    gap: 0.5rem;
}

@media (min-width: 640px) {
    .info-list {
        gap: 0.625rem;
    }
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-weight: 500;
    font-size: 0.85rem;
}

@media (min-width: 640px) {
    .info-row {
        font-size: 0.9rem;
    }
}

.info-row span {
    color: var(--muted);
    font-size: 0.8rem;
}

@media (min-width: 640px) {
    .info-row span {
        font-size: 0.85rem;
    }
}

.table-wrapper {
    border-radius: 3px;
    overflow-x: auto;
    border: 1px solid var(--line);
    background: #ffffff;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
    min-width: 500px;
}

@media (min-width: 640px) {
    table {
        font-size: 0.85rem;
        min-width: 0;
    }
}

thead {
    background: #fafafa;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    font-size: 0.65rem;
}

@media (min-width: 640px) {
    thead {
        font-size: 0.7rem;
    }
}

th,
td {
    padding: 0.5rem 0.625rem;
    border-bottom: 1px solid var(--line);
    text-align: left;
}

@media (min-width: 640px) {
    th,
    td {
        padding: 0.625rem 0.875rem;
    }
}

tbody tr:hover {
    background: #fafafa;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.15rem 0.5rem;
    border-radius: 2px;
    font-size: 0.7rem;
    font-weight: 500;
}

@media (min-width: 640px) {
    .badge {
        padding: 0.175rem 0.55rem;
        font-size: 0.75rem;
    }
}

.badge-success {
    background: #f1f5f9;
    color: #0f172a;
    border: 1px solid #cbd5e1;
}

.badge-warning {
    background: #f8fafc;
    color: #475569;
    border: 1px solid #cbd5e1;
}

.badge-danger {
    background: #f1f5f9;
    color: #334155;
    border: 1px solid #cbd5e1;
}

.alert {
    border-radius: 3px;
    padding: 0.75rem 0.875rem;
    background: #ffffff;
    border: 1px solid var(--line);
    font-size: 0.8rem;
    color: var(--slate);
}

@media (min-width: 640px) {
    .alert {
        padding: 0.875rem 1rem;
        font-size: 0.85rem;
    }
}

.form-stack {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .form-stack {
        gap: 0.875rem;
    }
}

.form-group label {
    font-size: 0.7rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.25rem;
    display: block;
}

@media (min-width: 640px) {
    .form-group label {
        font-size: 0.75rem;
    }
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    border-radius: 2px;
    border: 1px solid var(--line);
    padding: 0.625rem 0.75rem;
    background: #ffffff;
    color: #0f172a;
    font-size: 0.85rem;
}

@media (min-width: 640px) {
    .form-input,
    .form-select,
    .form-textarea {
        padding: 0.7rem 0.875rem;
        font-size: 0.9rem;
    }
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.login-card {
    max-width: 380px;
    margin: 2rem auto;
}

@media (min-width: 640px) {
    .login-card {
        max-width: 420px;
        margin: 3rem auto;
    }
}

.login-card .card {
    background: #ffffff;
    color: #0f172a;
}

.login-card .form-input,
.login-card .form-textarea,
.login-card .form-select {
    background: #ffffff;
}

footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.7rem;
    padding: 0.75rem;
}

@media (min-width: 640px) {
    footer {
        font-size: 0.75rem;
        margin-top: 2rem;
    }
}

@media (max-width: 639px) {
    body {
        font-size: 14px;
    }
    
    .page-title {
        font-size: 1.15rem;
    }
    
    .stat-value {
        font-size: 1.15rem;
    }
    
    .btn {
        font-size: 0.75rem;
        padding: 0.35rem 0.85rem;
    }
}