/* ============================================================
   Component System
   Unified patterns for nav, cards, buttons, slide-over
   ============================================================ */

/* -- Navigation -- */

.nav-item-main {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: all 0.15s ease;
}

.nav-item-main:hover {
    color: var(--color-text-heading);
    background-color: var(--color-bg-surface-hover);
    text-decoration: none;
}

.nav-item-main.nav-active {
    color: #EE7700;
    background-color: rgba(238, 119, 0, 0.08);
    font-weight: 600;
}

[data-theme="dimmed"] .nav-item-main.nav-active,
[data-theme="dark"] .nav-item-main.nav-active {
    background-color: rgba(238, 119, 0, 0.15);
}

/* -- Ghost button (icon-only or subtle) -- */

.btn-ghost {
    background: none;
    border: none;
    color: var(--color-text-muted);
    padding: 0.375rem 0.5rem;
    border-radius: 0.375rem;
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn-ghost:hover {
    color: var(--color-text-heading);
    background-color: var(--color-bg-surface-hover);
}

/* -- Button hierarchy -- */

.btn-primary-action {
    background-color: #EE7700;
    border-color: #EE7700;
    color: white;
    font-weight: 500;
    border-radius: 0.5rem;
    padding: 0.5rem 1.25rem;
    transition: all 0.15s ease;
}

.btn-primary-action:hover {
    background-color: #d96b00;
    border-color: #d96b00;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(238, 119, 0, 0.3);
}

.btn-secondary-action {
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-text-section);
    font-weight: 500;
    border-radius: 0.5rem;
    padding: 0.5rem 1.25rem;
    transition: all 0.15s ease;
}

.btn-secondary-action:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text-heading);
    background-color: var(--color-bg-surface-hover);
}

.btn-tertiary {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-weight: 500;
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    transition: all 0.15s ease;
}

.btn-tertiary:hover {
    color: var(--color-text-heading);
    background-color: var(--color-bg-surface-hover);
}

.btn-destructive {
    background: none;
    border: 1px solid #fee2e2;
    color: #dc2626;
    font-weight: 500;
    border-radius: 0.5rem;
    padding: 0.5rem 1.25rem;
    transition: all 0.15s ease;
}

.btn-destructive:hover {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #b91c1c;
}

[data-theme="dimmed"] .btn-destructive,
[data-theme="dark"] .btn-destructive {
    border-color: rgba(220, 38, 38, 0.3);
}

[data-theme="dimmed"] .btn-destructive:hover,
[data-theme="dark"] .btn-destructive:hover {
    background-color: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.4);
}

/* -- Standard card -- */

.std-card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 1.25rem;
    transition: all 0.15s ease;
}

.std-card:hover {
    border-color: var(--color-border-light);
    box-shadow: 0 4px 12px var(--color-card-shadow);
}

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

.std-card-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-heading);
    margin: 0;
}

.std-card-meta {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.std-card-metric {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.std-card-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border);
}

/* -- Slide-over panel -- */

.slide-over-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.slide-over-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.slide-over-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 480px;
    max-width: 90vw;
    background-color: var(--color-bg-surface);
    border-left: 1px solid var(--color-border);
    z-index: 1050;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -8px 0 24px rgba(0, 0, 0, 0.15);
}

.slide-over-panel.open {
    transform: translateX(0);
}

.slide-over-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.slide-over-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-heading);
    margin: 0;
}

.slide-over-body {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

/* -- Metric chip (compact stat display) -- */

.metric-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    font-size: 0.8125rem;
}

.metric-chip-value {
    font-weight: 700;
    font-size: 1rem;
}

.metric-chip-label {
    color: var(--color-text-muted);
}

/* -- View toggle (table/card) -- */

.view-toggle {
    display: inline-flex;
    border: 1px solid var(--color-border);
    border-radius: 0.375rem;
    overflow: hidden;
}

.view-toggle button {
    background: none;
    border: none;
    padding: 0.375rem 0.625rem;
    color: var(--color-text-muted);
    transition: all 0.15s ease;
    cursor: pointer;
    font-size: 0.875rem;
}

.view-toggle button.active {
    background-color: var(--color-bg-section-header);
    color: var(--color-text-heading);
}

.view-toggle button:not(.active):hover {
    background-color: var(--color-bg-surface-hover);
}

/* -- Filter sidebar -- */

.filter-sidebar {
    width: 260px;
    flex-shrink: 0;
    border-right: 1px solid var(--color-border);
    padding: 1rem;
    overflow-y: auto;
    background-color: var(--color-bg-surface);
}

.filter-section {
    margin-bottom: 1.25rem;
}

.filter-section-title {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.filter-section-title .bi {
    font-size: 0.625rem;
    transition: transform 0.15s;
}

.filter-section-title.collapsed .bi {
    transform: rotate(-90deg);
}

.filter-option {
    display: flex;
    align-items: center;
    padding: 0.25rem 0;
    font-size: 0.8125rem;
    color: var(--color-text-section);
    cursor: pointer;
}

.filter-option input[type="checkbox"] {
    margin-right: 0.5rem;
    accent-color: #EE7700;
}

.filter-option-count {
    margin-left: auto;
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    background-color: var(--color-bg-section-subtle);
    padding: 0.125rem 0.375rem;
    border-radius: 9999px;
}

/* -- Result count bar -- */

.result-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1rem;
}

.result-count {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.result-count strong {
    color: var(--color-text-heading);
    font-weight: 600;
}

/* -- Attendee table -- */

.attendee-table {
    width: 100%;
    border-collapse: collapse;
}

.attendee-table th {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    padding: 0.625rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
}

.attendee-table td {
    padding: 0.625rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.8125rem;
    color: var(--color-text-primary);
    vertical-align: middle;
}

.attendee-table tr {
    cursor: pointer;
    transition: background-color 0.1s ease;
}

.attendee-table tr:hover {
    background-color: var(--color-bg-surface-hover);
}

.attendee-table .attendee-name {
    font-weight: 500;
    color: var(--color-text-heading);
}

.attendee-table .attendee-company {
    color: var(--color-text-section);
    font-size: 0.75rem;
}

/* -- Role badges (compact) -- */

.role-badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: capitalize;
}

.role-badge.buyer { background-color: #dbeafe; color: #1e40af; }
.role-badge.visitor { background-color: #f3f4f6; color: #4b5563; }
.role-badge.teammember { background-color: #d1fae5; color: #065f46; }
.role-badge.speaker { background-color: #fef3c7; color: #92400e; }
.role-badge.moderator { background-color: #ede9fe; color: #5b21b6; }

[data-theme="dimmed"] .role-badge.buyer { background-color: rgba(59, 130, 246, 0.2); }
[data-theme="dimmed"] .role-badge.visitor { background-color: rgba(107, 114, 128, 0.2); }
[data-theme="dimmed"] .role-badge.teammember { background-color: rgba(16, 185, 129, 0.2); }
[data-theme="dimmed"] .role-badge.speaker { background-color: rgba(245, 158, 11, 0.2); }
[data-theme="dimmed"] .role-badge.moderator { background-color: rgba(139, 92, 246, 0.2); }

[data-theme="dark"] .role-badge.buyer { background-color: rgba(59, 130, 246, 0.15); }
[data-theme="dark"] .role-badge.visitor { background-color: rgba(107, 114, 128, 0.15); }
[data-theme="dark"] .role-badge.teammember { background-color: rgba(16, 185, 129, 0.15); }
[data-theme="dark"] .role-badge.speaker { background-color: rgba(245, 158, 11, 0.15); }
[data-theme="dark"] .role-badge.moderator { background-color: rgba(139, 92, 246, 0.15); }

/* -- Stepper (for Messages flow) -- */

.stepper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0;
}

.stepper-step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.stepper-step.active {
    color: #EE7700;
}

.stepper-step.completed {
    color: #01996A;
}

.stepper-number {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6875rem;
    font-weight: 700;
    border: 2px solid currentColor;
}

.stepper-step.active .stepper-number {
    background-color: #EE7700;
    border-color: #EE7700;
    color: white;
}

.stepper-step.completed .stepper-number {
    background-color: #01996A;
    border-color: #01996A;
    color: white;
}

.stepper-divider {
    flex: 1;
    height: 1px;
    background-color: var(--color-border);
    min-width: 2rem;
}

/* -- Empty state -- */

.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--color-text-muted);
}

.empty-state i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
    opacity: 0.4;
}

.empty-state p {
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

/* -- Page tabs (underline style) -- */

.page-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
}

.page-tab {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.page-tab:hover {
    color: var(--color-text-section);
}

.page-tab.active {
    color: #EE7700;
    border-bottom-color: #EE7700;
}

/* -- Filter chips (Data Explorer) -- */

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 500;
    background-color: rgba(238, 119, 0, 0.12);
    color: #EE7700;
    border: 1px solid rgba(238, 119, 0, 0.25);
    line-height: 1.3;
}

.filter-chip-label {
    font-weight: 600;
    text-transform: capitalize;
}

.filter-chip-x {
    background: none;
    border: none;
    color: inherit;
    font-size: 0.875rem;
    line-height: 1;
    padding: 0;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.15s;
}

.filter-chip-x:hover {
    opacity: 1;
}

[data-theme="dimmed"] .filter-chip,
[data-theme="dark"] .filter-chip {
    background-color: rgba(238, 119, 0, 0.18);
    border-color: rgba(238, 119, 0, 0.35);
}

/* -- Responsive -- */

@media (max-width: 768px) {
    .filter-sidebar {
        display: none;
    }

    .slide-over-panel {
        width: 100%;
        max-width: 100vw;
    }
}