/* ============================================================
   NeoTech GT — Reusable UI Components
   ============================================================ */

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
    padding: var(--space-3) var(--space-6); font-weight: var(--font-medium);
    font-size: var(--text-sm); border-radius: var(--radius-md);
    transition: all var(--transition-base); cursor: pointer; white-space: nowrap;
    text-decoration: none; border: 1px solid transparent; line-height: 1;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-white); color: var(--color-primary); border-color: var(--color-primary); box-shadow: 0 4px 12px var(--color-primary-shadow-soft); }
.btn-secondary { background: var(--color-secondary); color: var(--color-white); }
.btn-secondary:hover { background: var(--color-secondary-hover); }
.btn-outline { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-white); }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-white); background: var(--color-primary); box-shadow: 0 4px 12px var(--color-primary-shadow-soft); }
.btn-danger { background: var(--color-danger); color: var(--color-white); }
.btn-danger:hover { background: var(--color-danger-dark); }
.btn-success { background: var(--color-success); color: var(--color-white); }
.btn-success:hover { background: var(--color-success-dark); }
.btn-ghost { color: var(--color-gray-600); }
.btn-ghost:hover { background: var(--color-gray-100); color: var(--color-gray-900); }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn-icon { padding: var(--space-2); width: 36px; height: 36px; }
.btn:disabled, .btn.disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.btn .spinner { width: 16px; height: 16px; border: 2px solid transparent; border-top-color: currentColor; border-radius: 50%; animation: spin 0.6s linear infinite; }

/* ---- FORM INPUTS ---- */
.form-group { margin-bottom: var(--space-5); }
.form-label { display: block; font-size: var(--text-sm); font-weight: var(--font-medium); color: var(--color-gray-700); margin-bottom: var(--space-2); }
.form-input {
    width: 100%; padding: var(--space-3) var(--space-4); font-size: var(--text-sm);
    background: var(--color-white); border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md); transition: all var(--transition-fast);
    color: var(--color-gray-900);
}
.form-input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-ring); }
.form-input::placeholder { color: var(--color-gray-400); }
.form-input.error { border-color: var(--color-danger); }
.form-error { font-size: var(--text-xs); color: var(--color-danger); margin-top: var(--space-1); }
.form-hint { font-size: var(--text-xs); color: var(--color-gray-500); margin-top: var(--space-1); }
textarea.form-input { min-height: 100px; resize: vertical; }
select.form-input { appearance: none; background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 40px; }

/* ---- SWITCHES ---- */
.switch {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    user-select: none;
}
.switch input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.switch-indicator {
    width: 44px;
    height: 24px;
    border-radius: 999px;
    background: var(--color-gray-300);
    position: relative;
    flex-shrink: 0;
    transition: background var(--transition-fast);
}
.switch-indicator::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-white);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.2);
    transition: transform var(--transition-fast);
}
.switch input:checked + .switch-indicator {
    background: var(--color-primary);
}
.switch input:checked + .switch-indicator::after {
    transform: translateX(20px);
}
.switch-label {
    font-size: var(--text-sm);
    color: var(--color-gray-700);
}

/* ---- CARDS ---- */
.card {
    background: var(--color-white); border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200); box-shadow: var(--shadow-sm);
    overflow: hidden; transition: all var(--transition-base);
}
.card:hover { box-shadow: var(--shadow-md); }
.card-header { padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-gray-100); display: flex; align-items: center; justify-content: space-between; }
.card-body { padding: var(--space-6); }
.card-footer { padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-gray-100); background: var(--color-gray-50); }

/* ---- KPI / STAT CARDS ---- */
.stat-card {
    background: var(--color-white); border-radius: var(--radius-lg);
    padding: var(--space-6); border: 1px solid var(--color-gray-200);
    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%;
    background: var(--color-primary); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.stat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.stat-card .stat-icon {
    width: 48px; height: 48px; border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.stat-card .stat-content { flex: 1; }
.stat-card .stat-label { font-size: var(--text-sm); color: var(--color-gray-500); margin-bottom: var(--space-1); }
.stat-card .stat-value { font-size: var(--text-2xl); font-weight: var(--font-bold); color: var(--color-gray-900); }
.stat-card .stat-change { font-size: var(--text-xs); margin-top: var(--space-1); }

/* ---- BADGES ---- */
.badge {
    display: inline-flex; align-items: center; padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs); font-weight: var(--font-medium); border-radius: var(--radius-full);
    line-height: 1.4;
}
.badge-primary { background: var(--color-primary-light); color: var(--color-primary-dark); }
.badge-success { background: var(--color-success-light); color: var(--color-success-dark); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning-dark); }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger-dark); }
.badge-info { background: var(--color-info-light); color: var(--color-primary); }
.badge-neutral { background: var(--color-gray-100); color: var(--color-gray-600); }

/* ---- TABLE ---- */
.table-wrapper { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--color-gray-200); }
.data-table { width: 100%; }
.data-table thead { background: var(--color-gray-50); }
.data-table th {
    padding: var(--space-3) var(--space-4); text-align: left;
    font-size: var(--text-xs); font-weight: var(--font-semibold);
    color: var(--color-gray-500); text-transform: uppercase; letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-gray-200);
}
.data-table td {
    padding: var(--space-4); font-size: var(--text-sm);
    border-bottom: 1px solid var(--color-gray-100); vertical-align: middle;
}
.data-table tbody tr { transition: background var(--transition-fast); }
.data-table tbody tr:hover { background: var(--color-gray-50); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* ---- TOAST NOTIFICATIONS ---- */
.toast-container {
    position: fixed; top: var(--space-6); right: var(--space-6);
    display: flex; flex-direction: column; gap: var(--space-3);
    z-index: var(--z-toast); pointer-events: none;
}
.toast {
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-4) var(--space-5); min-width: 320px; max-width: 420px;
    background: var(--color-white); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl); border-left: 4px solid; pointer-events: auto;
    animation: toastIn 0.4s var(--transition-spring);
    transition: all var(--transition-base);
}
.toast.removing { animation: toastOut 0.3s ease forwards; }
.toast-success { border-left-color: var(--color-success); }
.toast-error { border-left-color: var(--color-danger); }
.toast-warning { border-left-color: var(--color-warning); }
.toast-info { border-left-color: var(--color-info); }
.toast .toast-icon { flex-shrink: 0; width: 20px; height: 20px; }
.toast .toast-message { flex: 1; font-size: var(--text-sm); color: var(--color-gray-700); }
.toast .toast-close { flex-shrink: 0; cursor: pointer; color: var(--color-gray-400); transition: color var(--transition-fast); padding: 4px; }
.toast .toast-close:hover { color: var(--color-gray-700); }

/* ---- MODAL ---- */
.modal-backdrop {
    position: fixed; inset: 0; background: rgba(15,23,42,0.6);
    backdrop-filter: blur(4px); z-index: var(--z-modal-backdrop);
    opacity: 0; visibility: hidden; transition: all var(--transition-base);
}
.modal-backdrop.active { opacity: 1; visibility: visible; }
.modal {
    position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.95);
    background: var(--color-white); border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl); z-index: var(--z-modal);
    width: 90%; max-width: 540px; max-height: 90vh; overflow: auto;
    opacity: 0; visibility: hidden; transition: all var(--transition-base);
}
.modal.active { opacity: 1; visibility: visible; transform: translate(-50%, -50%) scale(1); }
.modal-header { padding: var(--space-6); border-bottom: 1px solid var(--color-gray-100); display: flex; align-items: center; justify-content: space-between; }
.modal-header h3 { font-size: var(--text-lg); margin: 0; }
.modal-body { padding: var(--space-6); }
.modal-footer { padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-gray-100); display: flex; justify-content: flex-end; gap: var(--space-3); }

/* ---- PAGINATION ---- */
.pagination { display: flex; align-items: center; gap: var(--space-1); }
.pagination .page-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(--color-gray-600); transition: all var(--transition-fast); cursor: pointer;
}
.pagination .page-btn:hover { background: var(--color-gray-100); }
.pagination .page-btn.active { background: var(--color-primary); color: var(--color-white); }
.pagination .page-btn.disabled { opacity: 0.4; cursor: not-allowed; }

/* ---- EMPTY STATE ---- */
.empty-state {
    text-align: center; padding: var(--space-16) var(--space-6);
    color: var(--color-gray-400);
}
.empty-state svg { width: 64px; height: 64px; margin: 0 auto var(--space-4); opacity: 0.5; }
.empty-state h3 { color: var(--color-gray-500); font-size: var(--text-lg); margin-bottom: var(--space-2); }
.empty-state p { font-size: var(--text-sm); margin-bottom: var(--space-6); }

/* ---- ANIMATIONS ---- */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes toastIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes toastOut { from { transform: translateX(0); opacity: 1; } to { transform: translateX(100%); opacity: 0; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.animate-fade-in { animation: fadeIn 0.4s ease; }
.animate-slide-up { animation: slideUp 0.5s ease; }

/* ---- LOADING SKELETON ---- */
.skeleton { background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%); background-size: 200% 100%; animation: pulse 1.5s ease-in-out infinite; border-radius: var(--radius-md); }