/* === Base Reset and Typography === */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-success: #16a34a;
    --color-success-bg: #dcfce7;
    --color-error: #dc2626;
    --color-error-bg: #fef2f2;
    --color-warning: #d97706;
    --color-warning-bg: #fffbeb;
    --color-info: #2563eb;
    --color-info-bg: #eff6ff;
    --color-text: #1f2937;
    --color-text-muted: #6b7280;
    --color-bg: #f9fafb;
    --color-white: #ffffff;
    --color-border: #e5e7eb;
    --color-border-dark: #d1d5db;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --radius: 6px;
    --nav-height: 56px;
}

html {
    font-size: 16px;
    line-height: 1.6;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text);
    background: linear-gradient(135deg, #cb3556 0%, #6d4889 100%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* === Navigation === */
.navbar {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--nav-height);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-primary);
    white-space: nowrap;
    margin-right: 2rem;
}

.nav-brand:hover {
    text-decoration: none;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: auto;
}

.nav-toggle-icon {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
    content: "";
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    position: absolute;
}

.nav-toggle-icon::before {
    top: -7px;
}

.nav-toggle-icon::after {
    top: 7px;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.nav-item {
    position: relative;
}

.nav-item-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-link {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: color 0.15s, background-color 0.15s;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-info-bg);
    text-decoration: none;
}

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

.nav-link-logout {
    color: var(--color-error);
}

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

.nav-logout-form {
    display: inline;
}

.nav-logout-form button {
    background: none;
    border: none;
    font-family: inherit;
    cursor: pointer;
}

.nav-user {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* === Main Content === */
.main-content {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

/* === Flash Messages === */
.flash-messages {
    margin-bottom: 1.5rem;
}

.flash {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
}

.flash-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
    border-color: #bbf7d0;
}

.flash-error {
    background-color: var(--color-error-bg);
    color: var(--color-error);
    border-color: #fecaca;
}

.flash-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
    border-color: #fde68a;
}

.flash-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
    border-color: #bfdbfe;
}

.flash-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    padding: 0 0.25rem;
    line-height: 1;
}

.flash-close:hover {
    opacity: 1;
}

/* === Tables === */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

thead {
    background-color: #f3f4f6;
}

th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--color-text);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

tbody tr:hover {
    background-color: #f9fafb;
}

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

/* === Forms === */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius);
    background-color: var(--color-white);
    color: var(--color-text);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

.form-error {
    font-size: 0.75rem;
    color: var(--color-error);
    margin-top: 0.25rem;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover {
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-text);
    border-color: var(--color-border-dark);
}

.btn-secondary:hover {
    background-color: #f3f4f6;
}

.btn-danger {
    background-color: var(--color-error);
    color: var(--color-white);
}

.btn-danger:hover {
    background-color: #b91c1c;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}
.btn-group form {
    margin: 0;
    display: flex;
    align-items: center;
}

/* === Cards === */
.card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
}

/* === Pagination === */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    margin-top: 1.5rem;
    list-style: none;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    height: 2rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.8125rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text-muted);
    text-decoration: none;
}

.pagination a:hover {
    background-color: var(--color-info-bg);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.pagination .active {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.pagination .disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* === Badges === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    white-space: nowrap;
    line-height: 1;
}

.badge-active {
    background-color: var(--color-info-bg);
    color: var(--color-primary);
}

.badge-completed {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.badge-paused {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-stopped {
    background-color: var(--color-error-bg);
    color: var(--color-error);
}

/* === Category Section === */
.category-section {
    margin-bottom: 2rem;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.category-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
}

.category-count {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    background-color: #f3f4f6;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius);
}

/* === Checkbox === */
.checkbox-cell {
    width: 2.5rem;
    text-align: center;
}

.checkbox-cell input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

/* === Action Bar === */
.action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.action-bar-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.action-bar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* === Utilities === */
.text-muted {
    color: var(--color-text-muted);
}

.text-success {
    color: var(--color-success);
}

.text-error {
    color: var(--color-error);
}

.text-warning {
    color: var(--color-warning);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

/* === Footer === */
.footer {
    background-color: var(--color-white);
    border-top: 1px solid var(--color-border);
    padding: 1rem;
    margin-top: auto;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background-color: var(--color-white);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        padding: 0.5rem;
        gap: 0;
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-item-right {
        margin-left: 0;
        padding-top: 0.5rem;
        border-top: 1px solid var(--color-border);
        margin-top: 0.5rem;
    }

    .nav-link {
        padding: 0.625rem 0.75rem;
    }

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

    .table-container {
        font-size: 0.8125rem;
    }

    th, td {
        padding: 0.5rem 0.75rem;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 1rem 0.75rem;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* === Filter Form === */
.filter-form {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-start;
}

.filter-form .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 150px;
}

.filter-form .form-select,
.filter-form .form-input {
    min-width: 140px;
}

/* === Detail List (Definition List) === */
.detail-list {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.5rem 1.5rem;
    font-size: 0.875rem;
}

.detail-list dt {
    font-weight: 600;
    color: var(--color-text-muted);
}

.detail-list dd {
    color: var(--color-text);
}

/* === Sort Header Links === */
th a {
    color: inherit;
    text-decoration: none;
    white-space: nowrap;
}

th a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

@media (max-width: 768px) {
    .filter-form {
        flex-direction: column;
    }

    .filter-form .form-group {
        min-width: 100%;
    }

    .detail-list {
        grid-template-columns: 1fr;
    }

    .detail-list dt {
        margin-top: 0.5rem;
    }
}

/* === Dark Gradient Theme Overrides === */
.page-title { color: #ffffff; }
.footer p { color: rgba(255, 255, 255, 0.8); }

.footer-transparent { background: transparent !important; border-top: none !important; }

/* Theme adjustments for text on dark background */
.main-content .text-muted {
    color: rgba(255, 255, 255, 0.8) !important;
}
.card .text-muted, .table-container .text-muted {
    color: var(--color-text-muted) !important;
}

.pagination a, .pagination span {
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.3);
}
.pagination a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border-color: #ffffff;
}
.pagination .active {
    background-color: #ffffff;
    color: var(--color-primary);
    border-color: #ffffff;
}
.pagination .disabled {
    color: rgba(255, 255, 255, 0.5);
    border-color: rgba(255, 255, 255, 0.2);
}