/* ===== Botones ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    min-height: 44px;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:active:not(:disabled) {
    background: var(--color-primary-dark);
    transform: scale(0.98);
}

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

.btn-secondary:active:not(:disabled) {
    background: var(--color-bg);
    transform: scale(0.98);
}

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

.btn-danger:active:not(:disabled) {
    opacity: 0.9;
    transform: scale(0.98);
}

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

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    min-height: 52px;
}

/* ===== Cards ===== */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.card-body {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ===== Pinpad Component ===== */
.pinpad {
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
}

/* PIN Display (dots) */
.pinpad-display {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.pin-dot {
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    background: transparent;
    transition: all var(--transition-fast);
}

.pin-dot.filled {
    border-color: var(--color-primary);
    background: var(--color-primary);
}

.pinpad-display.error .pin-dot {
    border-color: var(--color-danger);
    animation: shake 0.3s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Teclado numérico */
.pinpad-keys {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.pinpad-key {
    aspect-ratio: 1.3;
    min-height: 56px;
    border: none;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xl);
    font-weight: 500;
    font-family: inherit;
    color: var(--color-text);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.1s ease;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pinpad-key:active {
    transform: scale(0.95);
    background: var(--color-border);
}

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

.pinpad-key-cancel:active {
    color: var(--color-danger);
}

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

.pinpad-key-delete:active {
    color: var(--color-primary);
}

/* Legacy PIN Display (for backwards compatibility) */
.pin-display {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.pin-digit {
    width: 48px;
    height: 56px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 600;
    background: var(--color-surface);
    transition: all var(--transition-fast);
}

.pin-digit.filled {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
}

.pin-digit.filled::after {
    content: '●';
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding-bottom: env(safe-area-inset-bottom);
    z-index: var(--z-navbar);
}

.navbar.hidden {
    display: none;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-xs);
    position: relative;
    transition: color var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.nav-item .icon {
    font-size: 1.5rem;
    line-height: 1;
}

.nav-item.active {
    color: var(--color-primary);
}

.nav-badge {
    position: absolute;
    top: -2px;
    right: 4px;
    background: var(--color-danger);
    color: white;
    font-size: 10px;
    font-weight: 600;
    min-width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

.nav-badge.hidden {
    display: none;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Modal con clase directa (nuevo patrón) */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-container {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

.modal-container.modal-sm {
    max-width: 320px;
}

/* Modal overlay + inner modal (patrón antiguo para backwards compatibility) */
.modal-overlay .modal-inner {
    background: var(--color-surface);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--spacing-lg);
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(100%);
    transition: transform var(--transition-slow);
}

.modal-overlay.active .modal-inner {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs);
}

.modal-body {
    margin-bottom: var(--spacing-md);
}

.modal-footer {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.modal-handle {
    width: 40px;
    height: 4px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-md);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.modal-subtitle {
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.modal-error {
    color: var(--color-danger);
    text-align: center;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
}

/* Modal Resultado (centrado) */
.modal-resultado {
    text-align: center;
    padding-top: var(--spacing-2xl);
}

.resultado-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.resultado-icon.success {
    color: var(--color-success);
}

.resultado-icon.warning {
    color: var(--color-warning);
}

.resultado-icon.error {
    color: var(--color-danger);
}

.resultado-titulo {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.resultado-hora {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.resultado-detalle {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* ===== Toast ===== */
.toast-container {
    position: fixed;
    top: calc(var(--spacing-md) + env(safe-area-inset-top));
    left: var(--spacing-md);
    right: var(--spacing-md);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.toast {
    background: var(--color-text);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.toast.toast-success,
.toast.success {
    background: var(--color-success);
}

.toast.toast-error,
.toast.error {
    background: var(--color-danger);
}

.toast.toast-warning,
.toast.warning {
    background: var(--color-warning);
}

.toast.toast-info,
.toast.info {
    background: var(--color-info);
}

.toast-icon {
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
}

.toast-message {
    flex: 1;
}

.toast-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    opacity: 0.7;
}

.toast-close:hover {
    opacity: 1;
}

.toast-action {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: inherit;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.toast-action:hover {
    background: rgba(255, 255, 255, 0.3);
}

.toast.visible {
    opacity: 1;
    transform: translateY(0);
}

.toast.hiding {
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

/* ===== Inputs ===== */
.textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-md);
    resize: vertical;
    min-height: 80px;
}

.textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-secondary);
}

.empty-state .empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* ===== Loading ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ===== Badge ===== */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: white;
}

.badge-success { background: var(--color-success); }
.badge-warning { background: var(--color-warning); }
.badge-danger { background: var(--color-danger); }
.badge-secondary { background: var(--color-text-secondary); }

/* ===== Divider ===== */
.divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-md) 0;
}