/* ==========================================================================
   Oxide Admin Panel - Dark Theme Stylesheet
   ========================================================================== */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-display);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--accent-purple);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-purple-hover);
}

img {
    max-width: 100%;
    height: auto;
}

/* ---------- Layout ---------- */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 250px;
    height: 100vh;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.main-content {
    margin-left: 250px;
    padding: 32px;
    min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar__header {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.sidebar__logo img {
    display: block;
}

.sidebar__close {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}

.sidebar__nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar__link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.sidebar__link:hover {
    background-color: var(--bg-surface-elevated);
    color: var(--text-primary);
}

.sidebar__link--active {
    background-color: var(--accent-purple);
    color: var(--text-primary);
}

.sidebar__link--active:hover {
    background-color: var(--accent-purple-hover);
    color: var(--text-primary);
}

.sidebar__link--logout {
    color: var(--danger);
}

.sidebar__link--logout:hover {
    background-color: rgba(255, 107, 107, 0.1);
    color: var(--danger);
}

.sidebar__icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar__divider {
    height: 1px;
    background-color: var(--border);
    margin: 12px 0;
}

.sidebar__footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.sidebar__user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.sidebar__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--accent-purple);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    flex-shrink: 0;
}

.sidebar__user-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar__user-email {
    font-size: 13px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar__user-role {
    font-size: 11px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ---------- Hamburger (mobile) ---------- */
.hamburger {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 200;
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 1px;
    transition: transform 0.2s ease;
}

/* ---------- Page Header ---------- */
.page-header {
    margin-bottom: 32px;
}

.page-header__title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.page-header__subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ---------- Cards ---------- */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
}

.card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card__title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ---------- Metric Cards ---------- */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.metric-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
}

.metric-card__label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.metric-card__value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
    line-height: 1.2;
}

.metric-card__change {
    font-size: 13px;
    margin-top: 8px;
}

.metric-card__change--up {
    color: var(--success);
}

.metric-card__change--down {
    color: var(--danger);
}

.metric-card__change--neutral {
    color: var(--text-secondary);
}

/* ---------- Tables ---------- */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th {
    text-align: left;
    padding: 12px 16px;
    background-color: var(--bg-surface);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    vertical-align: middle;
}

.table tr:nth-child(even) td {
    background-color: var(--bg-surface-elevated);
}

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

.table tr:hover td {
    background-color: rgba(108, 92, 231, 0.05);
}

.table td.mono {
    font-family: var(--font-mono);
    font-size: 13px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-display);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    text-decoration: none;
    line-height: 1;
}

.btn:active {
    transform: scale(0.98);
}

.btn--primary {
    background-color: var(--accent-purple);
    color: var(--text-primary);
}

.btn--primary:hover {
    background-color: var(--accent-purple-hover);
    color: var(--text-primary);
}

.btn--secondary {
    background-color: var(--bg-surface-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

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

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

.btn--danger:hover {
    background-color: #e05555;
    color: var(--text-primary);
}

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

.btn--success:hover {
    background-color: #27ae60;
    color: var(--text-primary);
}

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

.btn--lg {
    padding: 14px 28px;
    font-size: 16px;
}

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

/* ---------- Forms ---------- */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-family: var(--font-display);
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
}

.form-input:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
}

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

.form-input--error {
    border-color: var(--danger);
}

.form-input--error:focus {
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.2);
}

.form-error {
    font-size: 12px;
    color: var(--danger);
    margin-top: 4px;
}

.form-select {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-family: var(--font-display);
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23A0A0A8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

.form-select:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-primary);
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-purple);
    cursor: pointer;
}

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

/* ---------- Badges ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 100px;
    line-height: 1.4;
}

.badge--active,
.badge--success {
    background-color: rgba(46, 204, 113, 0.15);
    color: var(--success);
}

.badge--inactive,
.badge--danger {
    background-color: rgba(255, 107, 107, 0.15);
    color: var(--danger);
}

.badge--warning {
    background-color: rgba(243, 156, 18, 0.15);
    color: var(--warning);
}

.badge--info {
    background-color: rgba(0, 210, 211, 0.15);
    color: var(--data-teal);
}

.badge--neutral {
    background-color: rgba(160, 160, 168, 0.15);
    color: var(--text-secondary);
}

.badge--purple {
    background-color: rgba(108, 92, 231, 0.15);
    color: var(--accent-purple);
}

/* ---------- Pagination ---------- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 24px;
}

.pagination__link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.pagination__link:hover {
    background-color: var(--bg-surface-elevated);
    color: var(--text-primary);
}

.pagination__link--active {
    background-color: var(--accent-purple);
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.pagination__link--disabled {
    opacity: 0.4;
    pointer-events: none;
}

.pagination__info {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0 8px;
}

/* ---------- Flash Messages ---------- */
.flash {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
    animation: flashIn 0.3s ease;
}

.flash--success {
    background-color: rgba(46, 204, 113, 0.12);
    color: var(--success);
    border: 1px solid rgba(46, 204, 113, 0.25);
}

.flash--error {
    background-color: rgba(255, 107, 107, 0.12);
    color: var(--danger);
    border: 1px solid rgba(255, 107, 107, 0.25);
}

.flash--warning {
    background-color: rgba(243, 156, 18, 0.12);
    color: var(--warning);
    border: 1px solid rgba(243, 156, 18, 0.25);
}

.flash--info {
    background-color: rgba(0, 210, 211, 0.12);
    color: var(--data-teal);
    border: 1px solid rgba(0, 210, 211, 0.25);
}

.flash__close {
    background: none;
    border: none;
    color: inherit;
    font-size: 20px;
    cursor: pointer;
    padding: 0 0 0 16px;
    opacity: 0.7;
    line-height: 1;
}

.flash__close:hover {
    opacity: 1;
}

@keyframes flashIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Modals ---------- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 500;
    align-items: center;
    justify-content: center;
}

.modal-overlay--active {
    display: flex;
}

.modal {
    background-color: var(--bg-surface-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.2s ease;
}

.modal__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.modal__text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.5;
}

.modal__actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ---------- Filters Bar ---------- */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-bottom: 24px;
}

.filters .form-input,
.filters .form-select {
    width: auto;
    min-width: 180px;
}

.filters__search {
    flex: 1;
    min-width: 200px;
}

/* ---------- Bulk Actions ---------- */
.bulk-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: var(--bg-surface-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.bulk-actions__count {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ---------- Charts ---------- */
.chart-container {
    position: relative;
    width: 100%;
    max-height: 400px;
}

/* ---------- Empty State ---------- */
.empty-state {
    text-align: center;
    padding: 64px 24px;
    color: var(--text-secondary);
}

.empty-state__icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state__text {
    font-size: 14px;
    margin-bottom: 24px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ---------- Login Page ---------- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}

.login-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
}

.login-card__logo {
    display: flex;
    justify-content: center;
    margin-bottom: 32px;
}

.login-card__title {
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.login-card__subtitle {
    font-size: 14px;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ---------- Detail View ---------- */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-row__label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.detail-row__value {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

/* ---------- Tabs ---------- */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.tabs__tab {
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: var(--font-display);
}

.tabs__tab:hover {
    color: var(--text-primary);
}

.tabs__tab--active {
    color: var(--accent-purple);
    border-bottom-color: var(--accent-purple);
}

/* ---------- Utility Classes ---------- */
.text-mono {
    font-family: var(--font-mono);
}

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

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

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

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

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

.text-teal {
    color: var(--data-teal);
}

.text-sm {
    font-size: 12px;
}

.text-lg {
    font-size: 18px;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.p-16 { padding: 16px; }
.p-24 { padding: 24px; }

.flex {
    display: flex;
}

.flex--between {
    justify-content: space-between;
}

.flex--center {
    align-items: center;
}

.flex--gap-8 {
    gap: 8px;
}

.flex--gap-12 {
    gap: 12px;
}

.flex--gap-16 {
    gap: 16px;
}

.flex--wrap {
    flex-wrap: wrap;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.hidden {
    display: none !important;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar__close {
        display: block;
    }

    .hamburger {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: 24px 16px;
        padding-top: 72px;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .modal {
        margin: 16px;
        padding: 24px;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
    }

    .filters .form-input,
    .filters .form-select {
        width: 100%;
        min-width: unset;
    }

    .page-header__title {
        font-size: 22px;
    }

    .login-card {
        padding: 32px 24px;
    }

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

    .table-container {
        margin-left: -16px;
        margin-right: -16px;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
}

@media (max-width: 480px) {
    .pagination {
        flex-wrap: wrap;
    }

    .bulk-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .modal__actions {
        flex-direction: column;
    }

    .modal__actions .btn {
        width: 100%;
    }
}