/* =====================================================================
   Components — card, stats, table, button, form, badge, modal, toast
   ===================================================================== */

/* ===== Form helpers — used by JS-injected HTML ===== */
.session-checkbox,
.form-input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    cursor: pointer;
    vertical-align: middle;
}

/* JS inlines "background:#f5f5f5" for readonly fields — neutralize on dark */
.form-input[readonly] {
    background: var(--color-surface-2) !important;
    color: var(--color-muted) !important;
    border-color: var(--color-hairline) !important;
}

/* ===== Card ===== */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: var(--t-title-sm);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-on-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    letter-spacing: -0.1px;
}

.card-title > div,
.card-title > button,
.card-title > input,
.card-title > select {
    margin-left: 0;
}

.card-title .btn-sm { margin-left: var(--space-xs); }

.card-title .muted { color: var(--color-muted); font-weight: 500; font-size: var(--t-body-sm); margin-left: var(--space-xs); }

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-md);
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    color: var(--color-body);
    position: relative;
    overflow: hidden;
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.stat-card:hover { border-color: var(--color-surface-3); }

.stat-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-primary);
    opacity: 0.9;
}

/* accent variants — used as left-bar + stat-icon hue */
.stat-card.purple::before { background: var(--color-info); }
.stat-card.purple .stat-icon { color: var(--color-info); background: var(--color-info-soft); }

.stat-card.green::before { background: var(--color-up); }
.stat-card.green .stat-icon { color: var(--color-up); background: var(--color-up-soft); }

.stat-card.pink::before { background: var(--color-down); }
.stat-card.pink .stat-icon { color: var(--color-down); background: var(--color-down-soft); }

.stat-card.blue::before { background: #60a5fa; }
.stat-card.blue .stat-icon { color: #60a5fa; background: rgba(96, 165, 250, 0.12); }

.stat-card.orange::before { background: var(--color-primary); }
.stat-card.orange .stat-icon { color: var(--color-primary); background: var(--color-primary-soft); }

.stat-card .stat-label {
    font-size: var(--t-body-sm);
    color: var(--color-muted);
    margin-bottom: 6px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.stat-card .stat-value {
    font-family: var(--font-number);
    font-size: 28px;
    font-weight: 700;
    color: var(--color-on-dark);
    line-height: 1.15;
    letter-spacing: -0.4px;
    font-variant-numeric: tabular-nums;
}

.stat-card .stat-icon {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    opacity: 1;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    background: var(--color-primary-soft);
}

/* ===== Table ===== */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: var(--t-body-sm);
    color: var(--color-body);
}

.data-table th {
    background: var(--color-surface-2);
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-hairline);
    font-weight: 600;
    color: var(--color-muted);
    white-space: nowrap;
    font-size: var(--t-caption);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--color-hairline);
    color: var(--color-body);
    vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: 0; }

.data-table tr {
    transition: background 0.12s ease;
}

.data-table tbody tr:hover td { background: var(--color-surface-2); }

.data-table .col-mono {
    font-family: var(--font-number);
    font-size: 12.5px;
    color: var(--color-muted-strong);
    font-variant-numeric: tabular-nums;
}

/* ===== Badge ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    line-height: 1.6;
    letter-spacing: 0.1px;
    border: 1px solid transparent;
}

.badge-success {
    background: var(--color-up-soft);
    color: var(--color-up);
    border-color: rgba(14, 203, 129, 0.25);
}
.badge-danger {
    background: var(--color-down-soft);
    color: var(--color-down);
    border-color: rgba(246, 70, 93, 0.25);
}
.badge-info {
    background: var(--color-info-soft);
    color: var(--color-info);
    border-color: rgba(59, 130, 246, 0.25);
}
.badge-warning {
    background: var(--color-warning-soft);
    color: var(--color-warning);
    border-color: rgba(240, 185, 11, 0.25);
}
.badge-primary {
    background: var(--color-primary-soft);
    color: var(--color-primary);
    border-color: rgba(252, 213, 53, 0.25);
}
.badge-muted {
    background: var(--color-surface-2);
    color: var(--color-muted);
    border-color: var(--color-hairline);
}

/* ===== Button ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--t-button);
    font-weight: 600;
    font-family: var(--font-body);
    background: var(--color-surface);
    color: var(--color-body);
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.05s ease;
    white-space: nowrap;
    line-height: 1;
}

.btn:hover {
    border-color: var(--color-surface-3);
    background: var(--color-surface-2);
    color: var(--color-on-dark);
}

.btn:active { transform: translateY(1px); }

.btn[disabled] {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* Primary — Binance Yellow with black text (signature) */
.btn-primary {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-color: var(--color-primary);
    font-weight: 600;
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: var(--color-on-primary);
}

/* Danger — used for kick / delete */
.btn-danger {
    background: var(--color-down-soft);
    color: var(--color-down);
    border-color: rgba(246, 70, 93, 0.35);
}
.btn-danger:hover {
    background: var(--color-down);
    color: var(--color-on-dark);
    border-color: var(--color-down);
}

.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-block { width: 100%; justify-content: center; padding: 11px 16px; height: 40px; font-size: 15px; }

/* ===== Form ===== */
.form-group { margin-bottom: var(--space-md); }

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: var(--t-body-sm);
    color: var(--color-muted);
    font-weight: 500;
}

.form-input,
select.form-input {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-md);
    font-size: var(--t-body-md);
    font-family: var(--font-body);
    background: var(--color-surface-2);
    color: var(--color-on-dark);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    line-height: 1.4;
    height: 40px;
}

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

.form-input:hover { border-color: var(--color-surface-3); }

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--ring-focus);
    background: var(--color-surface);
}

select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23707A8A' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
    cursor: pointer;
}

textarea.form-input {
    height: auto;
    min-height: 80px;
    resize: vertical;
}

input[type="checkbox"] {
    accent-color: var(--color-primary);
    width: 14px;
    height: 14px;
    cursor: pointer;
    vertical-align: middle;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: var(--space-xxl) var(--space-lg);
    color: var(--color-muted);
}

.empty-state .empty-icon {
    font-size: 36px;
    margin-bottom: var(--space-sm);
    opacity: 0.55;
}

.empty-state .empty-text { font-size: var(--t-body-sm); }

/* ===== Direction Tags ===== */
.dir-in  {
    color: var(--color-up);
    font-weight: 600;
    font-size: var(--t-body-sm);
}
.dir-out {
    color: var(--color-info);
    font-weight: 600;
    font-size: var(--t-body-sm);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--space-md) 0 0;
    border-top: 1px solid var(--color-hairline);
    margin-top: var(--space-sm);
    flex-wrap: wrap;
}

.pagination-info {
    font-size: var(--t-caption);
    color: var(--color-muted);
    margin-right: var(--space-sm);
    font-weight: 500;
}

.pagination .btn-sm {
    min-width: 30px;
    justify-content: center;
    padding: 4px 8px;
    font-family: var(--font-number);
}

.pagination-ellipsis {
    font-size: var(--t-caption);
    color: var(--color-muted);
    padding: 0 4px;
    font-family: var(--font-number);
}

/* ===== Network Status ===== */
.network-status {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    border: 1px solid transparent;
}

.network-status.online {
    background: var(--color-up-soft);
    color: var(--color-up);
    border-color: rgba(14, 203, 129, 0.25);
}

.network-status.offline {
    background: var(--color-down-soft);
    color: var(--color-down);
    border-color: rgba(246, 70, 93, 0.25);
    animation: pulse-soft 1.5s infinite;
}

@keyframes pulse-soft {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.6; }
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(2px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
    padding: var(--space-lg);
    animation: fadeIn 0.15s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
    background: var(--color-surface);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    width: 480px;
    max-width: 100%;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.2s ease;
}

@keyframes modalIn {
    from { transform: translateY(8px) scale(0.98); opacity: 0; }
    to   { transform: translateY(0)    scale(1);    opacity: 1; }
}

.modal-title {
    font-size: var(--t-title-md);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-on-dark);
    letter-spacing: -0.2px;
}

.modal-body { font-size: var(--t-body-md); color: var(--color-body); }

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-xs);
    margin-top: var(--space-lg);
}

/* ===== Toast ===== */
.toast-container {
    position: fixed;
    top: calc(var(--header-height) + 12px);
    right: var(--space-lg);
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    max-width: 360px;
}

.toast {
    background: var(--color-surface-2);
    border: 1px solid var(--color-hairline);
    border-left: 3px solid var(--color-info);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 12px 18px;
    font-size: var(--t-body-sm);
    color: var(--color-on-dark);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    animation: slideInRight 0.25s ease;
    min-width: 240px;
}

.toast-success { border-left-color: var(--color-up); }
.toast-error   { border-left-color: var(--color-down); }
.toast-info    { border-left-color: var(--color-info); }
.toast-warning { border-left-color: var(--color-primary); }

@keyframes slideInRight {
    from { transform: translateX(110%); opacity: 0; }
    to   { transform: translateX(0);    opacity: 1; }
}

/* ===== Loading ===== */
.loading-state {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    color: var(--color-muted);
}

.loading-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 2.5px solid var(--color-hairline);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-text {
    margin-top: var(--space-sm);
    font-size: var(--t-body-sm);
    color: var(--color-muted);
}

/* ===== Error State ===== */
.error-state {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    color: var(--color-down);
}

.error-state .error-text { font-size: var(--t-body-md); margin-bottom: 6px; font-weight: 500; }
.error-state .error-hint { font-size: var(--t-caption); color: var(--color-muted); }

/* ===== Inline progress bars (used by DashboardPage thread-pool) ===== */
.progress {
    margin-bottom: var(--space-sm);
}
.progress-label {
    display: flex;
    justify-content: space-between;
    font-size: var(--t-body-sm);
    margin-bottom: 4px;
    color: var(--color-muted);
}
.progress-label .progress-value {
    color: var(--color-on-dark);
    font-family: var(--font-number);
    font-weight: 500;
    font-size: var(--t-num-sm);
}
.progress-track {
    background: var(--color-surface-2);
    border-radius: var(--radius-pill);
    height: 6px;
    overflow: hidden;
    position: relative;
}
.progress-fill {
    height: 100%;
    border-radius: var(--radius-pill);
    background: var(--color-primary);
    transition: width 0.3s ease;
    box-shadow: 0 0 8px rgba(252, 213, 53, 0.4);
}
.progress-fill.up    { background: var(--color-up);    box-shadow: 0 0 6px rgba(14, 203, 129, 0.35); }
.progress-fill.down  { background: var(--color-down);  box-shadow: 0 0 6px rgba(246, 70, 93, 0.35); }
.progress-fill.info  { background: var(--color-info);  box-shadow: 0 0 6px rgba(59, 130, 246, 0.35); }

/* ===== Definition list (server info / detail) ===== */
.server-info-grid {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 10px var(--space-md);
    font-size: var(--t-body-sm);
}
.server-info-grid dt {
    color: var(--color-muted);
    font-weight: 500;
}
.server-info-grid dd {
    color: var(--color-on-dark);
    font-weight: 500;
    word-break: break-all;
}

/* ===== Code blocks (HMAC etc.) ===== */
pre, code pre {
    background: var(--color-canvas) !important;
    color: var(--color-body);
    padding: 14px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-hairline);
    font-size: 12.5px;
    overflow-x: auto;
    font-family: var(--font-number);
    line-height: 1.6;
}

/* ===== Event log row (DashboardPage) ===== */
.event-row {
    display: flex;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-hairline);
    font-size: var(--t-body-sm);
    gap: var(--space-xs);
}
.event-row:last-child { border-bottom: 0; }
.event-row .event-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-info);
    margin-right: var(--space-xs);
    flex-shrink: 0;
}
.event-row .event-time {
    color: var(--color-muted);
    font-family: var(--font-number);
    font-size: 12px;
    min-width: 64px;
}
.event-row .event-type {
    margin: 0 var(--space-xs);
    font-weight: 600;
    font-size: var(--t-caption);
}
.event-row .event-detail {
    color: var(--color-body);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}