/**
 * TECH Menuiserie Configurator - 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-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 500;
    line-height: 1;
    border: 2px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-light);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--primary);
    color: white;
}

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

.btn-accent:hover:not(:disabled) {
    background: var(--accent-hover);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-icon:hover {
    background: var(--bg-alt);
    border-color: var(--primary);
}

/* ===== FORM ELEMENTS ===== */
.form-group {
    margin-bottom: var(--space-4);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 500;
    color: var(--text);
}

input[type="text"],
input[type="number"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text);
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 49, 104, 0.1);
    outline: none;
}

input[type="number"] {
    font-family: var(--font-mono);
    text-align: center;
}

.input-hint {
    display: block;
    margin-top: var(--space-1);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.input-with-controls {
    display: flex;
    align-items: stretch;
}

.input-with-controls input {
    border-radius: 0;
    border-left: none;
    border-right: none;
}

.input-btn {
    width: 48px;
    padding: 0;
    font-size: var(--text-xl);
    font-weight: 600;
    background: var(--bg-alt);
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all var(--transition);
}

.input-btn.minus {
    border-radius: var(--radius) 0 0 var(--radius);
}

.input-btn.plus {
    border-radius: 0 var(--radius) var(--radius) 0;
}

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

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Checkbox styling */
input[type="checkbox"] {
    appearance: none;
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

input[type="checkbox"]:checked {
    background: var(--primary);
    border-color: var(--primary);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='white' d='M10 3L4.5 8.5L2 6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

/* ===== HEADER ===== */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--primary);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.logo {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    color: white;
    text-decoration: none;
}

.logo-tech {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    color: white;
}

.logo-tagline {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
}

.header-nav {
    display: flex;
    gap: var(--space-6);
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: color var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: white;
}

.header-actions {
    display: flex;
    gap: var(--space-3);
}

.header-actions .btn-icon {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.header-actions .btn-icon:hover {
    background: rgba(255, 255, 255, 0.2);
}

.cart-btn {
    position: relative;
}

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    font-size: 11px;
    font-weight: 600;
    line-height: 18px;
    text-align: center;
    color: white;
    background: var(--accent);
    border-radius: var(--radius-full);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--primary);
    color: white;
    padding: var(--space-8) 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.footer-brand p {
    margin: 0;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-sm);
}

.footer-links a:hover {
    color: white;
}


/* ===== CARDS ===== */
.card {
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    transition: all var(--transition);
}

.card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.card.selected {
    border-color: var(--primary);
    background: rgba(0, 49, 104, 0.03);
}

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

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

.badge-accent {
    background: var(--accent);
    color: white;
}

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

/* ===== LOADING ===== */
.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    background: rgba(255, 255, 255, 0.95);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

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

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .header-nav {
        display: none;
    }
}

@media (max-width: 768px) {
    .footer-inner {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header-inner { padding: 0 var(--space-3); }
    .logo-img { height: 30px; }
    .header-actions { gap: var(--space-2); }
}