/**
 * RESPIRO Design System - Component Styles
 */

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--stone-100);
    color: var(--stone-950);
}

.btn-secondary:hover {
    background: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--stone-200);
    border: 1px solid var(--stone-700);
}

.btn-outline:hover {
    border-color: var(--stone-500);
    color: white;
}

.btn-outline-primary {
    background: transparent;
    color: var(--color-primary-light);
    border: 1px solid var(--color-primary);
}

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

.btn-ghost {
    background: transparent;
    color: var(--stone-400);
}

.btn-ghost:hover {
    color: var(--color-primary-light);
}

.btn-icon {
    padding: var(--space-3);
    border-radius: var(--radius-full);
}

.btn-lg {
    padding: var(--space-6) var(--space-12);
    font-size: var(--text-sm);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ========================================
   FORMS
   ======================================== */

.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    color: var(--stone-500);
    margin-bottom: var(--space-3);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-5) var(--space-6);
    font-size: var(--text-base);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-3xl);
    color: var(--color-text);
    transition: all var(--transition-base);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--stone-600);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-primary);
    background: var(--stone-900);
}

.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
    border-color: var(--color-error);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
    border-radius: var(--radius-3xl);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2378716c' 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 var(--space-4) center;
    background-size: 20px;
    padding-right: var(--space-12);
}

.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.form-checkbox input,
.form-radio input {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--stone-700);
    background: var(--stone-900);
    cursor: pointer;
    appearance: none;
    transition: all var(--transition-base);
}

.form-radio input {
    border-radius: var(--radius-full);
}

.form-checkbox input:checked,
.form-radio input:checked {
    background: var(--color-primary);
    border-color: var(--color-primary);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.form-error {
    font-size: var(--text-sm);
    color: var(--color-error);
    margin-top: var(--space-2);
}

.form-help {
    font-size: var(--text-sm);
    color: var(--stone-500);
    margin-top: var(--space-2);
}

/* ========================================
   CARDS
   ======================================== */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-4xl);
    overflow: hidden;
    transition: all var(--transition-slow);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    position: relative;
    aspect-ratio: 1 / 1.2;
    overflow: hidden;
    background: var(--stone-900);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slowest);
}

.card:hover .card-image img {
    transform: scale(1.08);
}

.card-body {
    padding: var(--space-6);
    text-align: center;
}

.card-title {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    color: var(--stone-100);
    margin-bottom: var(--space-2);
}

.card-price {
    font-size: var(--text-lg);
    color: var(--color-primary-light);
}

.card-price-old {
    font-size: var(--text-sm);
    color: var(--stone-500);
    text-decoration: line-through;
    margin-left: var(--space-2);
}

.card-badge {
    position: absolute;
    top: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    z-index: 10;
}

/* ========================================
   BADGES
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    border-radius: var(--radius-full);
}

.badge-primary {
    background: var(--color-primary-muted);
    color: var(--color-primary-light);
}

.badge-success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-error {
    background: var(--color-error-bg);
    color: var(--color-error);
}

.badge-info {
    background: var(--color-info-bg);
    color: var(--color-info);
}

/* ========================================
   ALERTS
   ======================================== */

.alert {
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.alert-success {
    background: var(--color-success-bg);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: var(--color-success);
}

.alert-warning {
    background: var(--color-warning-bg);
    border: 1px solid rgba(234, 179, 8, 0.2);
    color: var(--color-warning);
}

.alert-error {
    background: var(--color-error-bg);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--color-error);
}

.alert-info {
    background: var(--color-info-bg);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--color-info);
}

/* ========================================
   MODALS
   ======================================== */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-backdrop.is-open {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--stone-900);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-4xl);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
}

.modal-close {
    color: var(--stone-500);
    transition: color var(--transition-base);
}

.modal-close:hover {
    color: var(--color-error);
}

.modal-body {
    padding: var(--space-6);
}

.modal-footer {
    padding: var(--space-6);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
}

/* ========================================
   LOADING
   ======================================== */

.loading {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-spinner-lg {
    width: 48px;
    height: 48px;
    border-width: 3px;
}

.loading-dots {
    display: flex;
    gap: var(--space-1);
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

/* ========================================
   QUANTITY SELECTOR
   ======================================== */

.qty-selector {
    display: inline-flex;
    align-items: center;
    background: var(--stone-900);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.qty-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--stone-500);
    transition: all var(--transition-base);
}

.qty-btn:hover {
    color: white;
    background: var(--stone-800);
}

.qty-value {
    width: 50px;
    text-align: center;
    font-weight: 600;
    color: var(--stone-200);
}

/* ========================================
   BREADCRUMBS
   ======================================== */

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--stone-500);
    margin-bottom: var(--space-6);
}

.breadcrumbs a {
    color: var(--stone-500);
    transition: color var(--transition-base);
}

.breadcrumbs a:hover {
    color: var(--color-primary-light);
}

.breadcrumbs span {
    color: var(--stone-600);
}

/* ========================================
   PAGINATION
   ======================================== */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-12);
}

.pagination-item {
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--stone-400);
    background: var(--stone-900);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.pagination-item:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-light);
}

.pagination-item.is-active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.pagination-item.is-disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* ========================================
   TABS
   ======================================== */

.tabs {
    display: flex;
    gap: var(--space-2);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-6);
    overflow-x: auto;
}

.tab {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--stone-500);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.tab:hover {
    color: var(--stone-200);
}

.tab.is-active {
    color: var(--color-primary-light);
    border-bottom-color: var(--color-primary);
}

/* ========================================
   TOOLTIPS
   ======================================== */

[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    color: white;
    background: var(--stone-800);
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: var(--z-tooltip);
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}