/* ============================================================
   PONTOAZT — Componentes CSS
   Botões, cards, inputs, badges, tabelas, etc.
   ============================================================ */

/* ============================================================
   BOTÕES
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    line-height: 1;
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    transition: all var(--transition-base);
    white-space: nowrap;
    cursor: pointer;
    min-height: 40px;
    position: relative;
    overflow: hidden;
}
.btn:active { transform: scale(0.97); }
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}
.btn .icon { width: 18px; height: 18px; flex-shrink: 0; }

/* Variantes */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-color-strong);
}
.btn-secondary:hover {
    background: var(--bg-surface-hover);
    border-color: var(--primary-300);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    color: white;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), var(--success-dark));
    color: white;
}

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

.btn-icon {
    padding: var(--space-2);
    min-width: 40px;
    min-height: 40px;
    border-radius: var(--radius-lg);
}

.btn-sm { padding: var(--space-1) var(--space-3); min-height: 32px; font-size: var(--text-xs); }
.btn-lg { padding: var(--space-3) var(--space-6); min-height: 48px; font-size: var(--text-base); }

/* ============================================================
   CARDS
   ============================================================ */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}
.card:hover {
    box-shadow: var(--shadow-md);
}
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-color);
}
.card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}
.card-subtitle {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-top: var(--space-1);
}

/* Stat Cards */
.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    border-radius: var(--radius-full) 0 0 var(--radius-full);
}
.stat-card.stat-primary::before { background: var(--primary-500); }
.stat-card.stat-success::before { background: var(--success); }
.stat-card.stat-warning::before { background: var(--warning); }
.stat-card.stat-danger::before { background: var(--danger); }
.stat-card.stat-info::before { background: var(--info); }

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}
.stat-icon.icon-primary { background: transparent; color: var(--primary-600); }
.stat-icon.icon-success { background: transparent; color: var(--success-dark); }
.stat-icon.icon-warning { background: transparent; color: var(--warning-dark); }
.stat-icon.icon-danger { background: transparent; color: var(--danger-dark); }
.stat-icon.icon-info { background: transparent; color: var(--info-dark); }

[data-theme="dark"] .stat-icon.icon-primary { background: transparent; }
[data-theme="dark"] .stat-icon.icon-success { background: transparent; }
[data-theme="dark"] .stat-icon.icon-warning { background: transparent; }
[data-theme="dark"] .stat-icon.icon-danger { background: transparent; }
[data-theme="dark"] .stat-icon.icon-info { background: transparent; }

.stat-content { flex: 1; min-width: 0; }
.stat-label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    margin-bottom: var(--space-1);
}
.stat-value {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    line-height: 1;
}
.stat-change {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    margin-top: var(--space-1);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.stat-change.positive { color: var(--success); }
.stat-change.negative { color: var(--danger); }

/* ============================================================
   INPUTS & FORMULÁRIOS
   ============================================================ */
.form-group {
    margin-bottom: var(--space-5);
}
.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}
.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-input);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    min-height: 42px;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
}
.form-input.error,
.form-select.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}
.form-error {
    font-size: var(--text-xs);
    color: var(--danger);
    margin-top: var(--space-1);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.form-hint {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-top: var(--space-1);
}
.form-textarea {
    resize: vertical;
    min-height: 100px;
}
.form-input::placeholder {
    color: var(--text-tertiary);
}

/* Input Group */
.input-group {
    display: flex;
    align-items: stretch;
}
.input-group .form-input {
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.input-group-append {
    display: flex;
    align-items: center;
    padding: 0 var(--space-3);
    background: var(--bg-surface-hover);
    border: 1px solid var(--border-input);
    border-left: none;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* Search Input */
.search-input-wrapper {
    position: relative;
}
.search-input-wrapper .search-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}
.search-input-wrapper .form-input {
    padding-left: var(--space-10);
}

/* Toggle Switch */
.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    display: inline-block;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--border-color-strong);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}
.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
}
.toggle input:checked + .toggle-slider {
    background: var(--primary-500);
}
.toggle input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* ============================================================
   BADGES & TAGS
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    line-height: 1.5;
    white-space: nowrap;
}
.badge-primary { background: var(--primary-100); color: var(--primary-700); }
.badge-success { background: var(--success-light); color: var(--success-dark); }
.badge-warning { background: var(--warning-light); color: var(--warning-dark); }
.badge-danger { background: var(--danger-light); color: var(--danger-dark); }
.badge-info { background: var(--info-light); color: var(--info-dark); }
.badge-neutral { background: var(--bg-surface-active); color: var(--text-secondary); }

[data-theme="dark"] .badge-primary { background: rgba(99,102,241,0.15); color: var(--primary-300); }
[data-theme="dark"] .badge-success { background: rgba(16,185,129,0.15); color: #6ee7b7; }
[data-theme="dark"] .badge-warning { background: rgba(245,158,11,0.15); color: #fbbf24; }
[data-theme="dark"] .badge-danger { background: rgba(239,68,68,0.15); color: #fca5a5; }
[data-theme="dark"] .badge-info { background: rgba(59,130,246,0.15); color: #93c5fd; }

/* Dot indicator */
.badge-dot::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ============================================================
   TABELA
   ============================================================ */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    background: var(--bg-surface);
}
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}
.data-table thead th {
    padding: var(--space-4) var(--space-4);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 1;
}
.data-table thead th:first-child { border-radius: var(--radius-xl) 0 0 0; }
.data-table thead th:last-child { border-radius: 0 var(--radius-xl) 0 0; }

.data-table tbody td {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}
.data-table tbody tr:hover td {
    background: var(--bg-surface-hover);
}
.data-table tbody tr:last-child td {
    border-bottom: none;
}
.data-table tbody tr:last-child td:first-child { border-radius: 0 0 0 var(--radius-xl); }
.data-table tbody tr:last-child td:last-child { border-radius: 0 0 var(--radius-xl) 0; }

/* Sortable header */
.data-table th.sortable {
    cursor: pointer;
    user-select: none;
}
.data-table th.sortable:hover {
    color: var(--primary-600);
}
.data-table th.sortable::after {
    content: '↕';
    margin-left: var(--space-1);
    opacity: 0.3;
}
.data-table th.sortable.asc::after { content: '↑'; opacity: 1; }
.data-table th.sortable.desc::after { content: '↓'; opacity: 1; }

/* ============================================================
   PAGINAÇÃO
   ============================================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: var(--space-3);
}
.pagination-info {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}
.pagination-controls {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.pagination-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}
.pagination-btn:hover:not(:disabled) {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}
.pagination-btn.active {
    background: var(--primary-500);
    color: white;
    border-color: var(--primary-500);
}
.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ============================================================
   AVATARES
   ============================================================ */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
    color: white;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 32px; height: 32px; font-size: var(--text-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-lg); }
.avatar-xl { width: 80px; height: 80px; font-size: var(--text-2xl); }

/* ============================================================
   SKELETON LOADING
   ============================================================ */
.skeleton {
    background: linear-gradient(90deg,
        var(--bg-surface-hover) 25%,
        var(--bg-surface-active) 50%,
        var(--bg-surface-hover) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}
.skeleton-text { height: 16px; width: 100%; margin-bottom: var(--space-2); }
.skeleton-text:last-child { width: 60%; }
.skeleton-title { height: 24px; width: 40%; margin-bottom: var(--space-3); }
.skeleton-avatar { width: 40px; height: 40px; border-radius: 50%; }
.skeleton-card { height: 120px; width: 100%; }
.skeleton-btn { height: 40px; width: 120px; }

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) var(--space-4);
    text-align: center;
}
.empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}
.empty-state-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}
.empty-state-desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    max-width: 360px;
}

/* ============================================================
   LOADER / SPINNER
   ============================================================ */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }
.spinner-sm { width: 14px; height: 14px; border-width: 2px; }

/* Page loader */
.page-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-20);
    flex-direction: column;
    gap: var(--space-4);
}
.page-loader-text {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* ============================================================
   DROPDOWN
   ============================================================ */
.dropdown {
    position: relative;
    display: inline-block;
}
.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 200px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-1);
    z-index: var(--z-dropdown);
    display: none;
    animation: fadeInDown var(--transition-fast) ease-out;
}
.dropdown-menu.show { display: block; }
.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    width: 100%;
    text-align: left;
}
.dropdown-item:hover {
    background: var(--bg-surface-hover);
    color: var(--primary-600);
}
.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--space-1) 0;
}

/* ============================================================
   TABS
   ============================================================ */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    gap: var(--space-1);
    overflow-x: auto;
}
.tab {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
    cursor: pointer;
    white-space: nowrap;
}
.tab:hover { color: var(--text-primary); }
.tab.active {
    color: var(--primary-600);
    border-bottom-color: var(--primary-500);
}

/* ============================================================
   RESPONSIVE GRID
   ============================================================ */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}