/* CV SPARES - PRODUCTION B2B STYLESHEET */

:root {
    --primary-navy: #0A192F;
    --secondary-navy: #1E293B;
    --accent-red: #DC2626;
    --accent-red-hover: #B91C1C;
    --whatsapp-green: #25D366;
    --whatsapp-hover: #1DA851;
    --bg-light: #F8FAFC;
    --surface-white: #FFFFFF;
    --text-main: #0F172A;
    --text-muted: #475569;
    --border-color: #E2E8F0;
    --focus-ring: #3B82F6;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --max-width: 1280px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-stack);
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
input, select, button, textarea { font: inherit; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* Utility Classes */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    text-align: center;
}

.btn-primary { background-color: var(--accent-red); color: var(--surface-white); }
.btn-primary:hover { background-color: var(--accent-red-hover); }

.btn-secondary { background-color: var(--primary-navy); color: var(--surface-white); }
.btn-secondary:hover { background-color: var(--secondary-navy); }

.btn-whatsapp { background-color: var(--whatsapp-green); color: var(--surface-white); }
.btn-whatsapp:hover { background-color: var(--whatsapp-hover); }

.btn-outline { border-color: var(--border-color); background-color: var(--surface-white); color: var(--text-main); }
.btn-outline:hover { background-color: var(--bg-light); }

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    background-color: #E2E8F0;
    color: var(--secondary-navy);
    text-transform: uppercase;
}

/* Header & Navigation */
.sticky-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--primary-navy);
    color: var(--surface-white);
    box-shadow: var(--shadow-md);
}

.top-bar {
    background-color: var(--secondary-navy);
    font-size: 0.8125rem;
    padding: 0.25rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.top-bar-content { display: flex; justify-content: space-between; align-items: center; }

.main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.875rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--surface-white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span { color: var(--accent-red); }

.search-wrapper { flex: 1; max-width: 650px; position: relative; }

.search-box { display: flex; background: var(--surface-white); border-radius: var(--radius-sm); overflow: hidden; }

.search-box input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    outline: none;
    color: var(--text-main);
    font-size: 0.9375rem;
}

.search-box button {
    background: var(--accent-red);
    color: var(--surface-white);
    border: none;
    padding: 0 1.25rem;
    cursor: pointer;
    font-weight: 600;
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface-white);
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    box-shadow: var(--shadow-md);
    max-height: 350px;
    overflow-y: auto;
    z-index: 101;
    display: none;
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.autocomplete-item:hover, .autocomplete-item.active {
    background-color: #EFF6FF;
    border-left: 3px solid var(--focus-ring);
}

.header-actions { display: flex; gap: 0.75rem; align-items: center; }

.nav-strip {
    background-color: var(--secondary-navy);
    border-top: 1px solid rgba(255,255,255,0.05);
    overflow-x: auto;
    white-space: nowrap;
}

.nav-strip ul { display: flex; list-style: none; }

.nav-strip a {
    display: block;
    padding: 0.625rem 1rem;
    color: #CBD5E1;
    font-size: 0.875rem;
    font-weight: 500;
}

.nav-strip a:hover { color: var(--surface-white); background: rgba(255,255,255,0.05); }

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--secondary-navy) 100%);
    color: var(--surface-white);
    padding: 3.5rem 0;
    text-align: center;
}

.hero h1 { font-size: 2.25rem; font-weight: 800; margin-bottom: 0.75rem; }
.hero p { font-size: 1.125rem; color: #94A3B8; max-width: 650px; margin: 0 auto 1.5rem auto; }

.hero-tags {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: #94A3B8;
}

.hero-tag-item {
    background: rgba(255,255,255,0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    cursor: pointer;
}
.hero-tag-item:hover { background: rgba(255,255,255,0.2); color: var(--surface-white); }

/* Layout Grids */
.section { padding: 2.5rem 0; }
.section-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; color: var(--primary-navy); display: flex; justify-content: space-between; align-items: flex-end; }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1.25rem; }

.product-card {
    background: var(--surface-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
}

.product-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.product-image {
    width: 100%;
    height: 180px;
    background-color: #F1F5F9;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94A3B8;
    font-weight: 600;
    position: relative;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.product-info { padding: 1rem; display: flex; flex-direction: column; flex: 1; }
.product-title { font-size: 1rem; font-weight: 700; color: var(--text-main); margin-bottom: 0.5rem; line-height: 1.3; }

.part-no-tag {
    font-family: monospace;
    background: #EFF6FF;
    color: #1D4ED8;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.8125rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.product-meta { font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 1rem; flex: 1; }
.product-actions { display: flex; gap: 0.5rem; }
.product-actions .btn { flex: 1; padding: 0.5rem; font-size: 0.8125rem; }

.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem; }

.category-card {
    background: var(--surface-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.category-card:hover { border-color: var(--primary-navy); box-shadow: var(--shadow-sm); background: #F1F5F9; }
.category-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.category-name { font-size: 0.9375rem; font-weight: 600; color: var(--primary-navy); }

/* Catalogue Layout */
.catalogue-layout { display: grid; grid-template-columns: 260px 1fr; gap: 1.5rem; }
.filter-sidebar { background: var(--surface-white); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 1.25rem; height: fit-content; }
.filter-group { margin-bottom: 1.25rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--border-color); }
.filter-group:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.filter-title { font-size: 0.875rem; font-weight: 700; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.75rem; }
.filter-list { list-style: none; }
.filter-item { margin-bottom: 0.375rem; }
.filter-label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; cursor: pointer; color: var(--text-main); }

/* Trust & SEO */
.trust-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; background: var(--surface-white); border: 1px solid var(--border-color); padding: 2rem; border-radius: var(--radius-md); }
.trust-item { text-align: center; }
.trust-item h3 { font-size: 1rem; font-weight: 700; color: var(--primary-navy); margin-bottom: 0.25rem; }
.trust-item p { font-size: 0.8125rem; color: var(--text-muted); }

.disclaimer-box { background: #FFFBEB; border: 1px solid #FCD34D; border-radius: var(--radius-sm); padding: 0.875rem; font-size: 0.75rem; color: #78350F; margin-top: 1.5rem; line-height: 1.4; }
.seo-content { background: var(--surface-white); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 2rem; margin-top: 2rem; }
.seo-content h2 { font-size: 1.25rem; color: var(--primary-navy); margin-bottom: 0.75rem; }
.seo-content p { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 1rem; }

.faq-item { border: 1px solid var(--border-color); border-radius: var(--radius-sm); margin-bottom: 0.5rem; background: var(--surface-white); }
.faq-question { padding: 1rem; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-answer { padding: 0 1rem 1rem 1rem; font-size: 0.875rem; color: var(--text-muted); display: none; }
.faq-item.active .faq-answer { display: block; }

/* Modal */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.75); display: flex; align-items: center; justify-content: center;
    z-index: 1000; opacity: 0; pointer-events: none; transition: opacity 0.2s ease;
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }

.modal-container {
    background: var(--surface-white); width: 100%; max-width: 600px;
    border-radius: var(--radius-md); overflow: hidden; box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    max-height: 90vh; display: flex; flex-direction: column;
}
.modal-header { background: var(--primary-navy); color: var(--surface-white); padding: 1rem 1.25rem; display: flex; justify-content: space-between; align-items: center; }
.modal-body { padding: 1.5rem; overflow-y: auto; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.8125rem; font-weight: 600; margin-bottom: 0.25rem; color: var(--text-main); }
.form-control { width: 100%; padding: 0.625rem; border: 1px solid var(--border-color); border-radius: var(--radius-sm); outline: none; }
.form-control:focus { border-color: var(--focus-ring); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* Footer & Mobile Bar */
footer { background-color: var(--primary-navy); color: #94A3B8; padding: 3rem 0 1.5rem 0; margin-top: 3rem; border-top: 1px solid rgba(255,255,255,0.1); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
.footer-col h4 { color: var(--surface-white); font-size: 1rem; margin-bottom: 1rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; font-size: 0.875rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 1.5rem; font-size: 0.8125rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }

.mobile-bottom-bar {
    display: none; position: fixed; bottom: 0; left: 0; right: 0;
    background: var(--surface-white); border-top: 1px solid var(--border-color);
    padding: 0.5rem 1rem; z-index: 99; box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}
.mobile-bottom-bar .bar-actions { display: flex; gap: 0.5rem; }
.mobile-bottom-bar .btn { flex: 1; padding: 0.625rem; font-size: 0.875rem; }

@media (max-width: 900px) {
    .catalogue-layout { grid-template-columns: 1fr; }
    .filter-sidebar { display: none; }
}

@media (max-width: 768px) {
    .main-header { flex-wrap: wrap; }
    .search-wrapper { order: 3; width: 100%; max-width: 100%; }
    .header-actions { display: none; }
    .mobile-bottom-bar { display: block; }
    body { padding-bottom: 60px; }
    .hero h1 { font-size: 1.625rem; }
    .form-row { grid-template-columns: 1fr; }
}