/**
 * NirmanSathi - Frontend Stylesheet
 * Responsive, mobile-first, modern construction marketplace UI
 */

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

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

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: var(--max-w-container);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
}

/* -----------------------------------------------------------------------------
   Top Announcement Bar
----------------------------------------------------------------------------- */
.topbar {
    background-color: var(--dark);
    color: #D1D5DB;
    font-size: 0.825rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--dark-muted);
}
.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.topbar-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}
.topbar-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: color 0.15s;
}
.topbar-link:hover {
    color: var(--primary);
}
.location-badge {
    background: rgba(245, 158, 11, 0.15);
    color: var(--primary);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

/* -----------------------------------------------------------------------------
   Main Header & Navigation
----------------------------------------------------------------------------- */
.header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.85rem 0;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.02em;
}
.brand-logo span {
    color: var(--primary);
}

.header-search {
    flex: 1;
    max-width: 520px;
    position: relative;
}
.search-form {
    display: flex;
    align-items: center;
    background: var(--bg-muted);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-full);
    padding: 0.25rem 0.5rem 0.25rem 1.25rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.search-form:focus-within {
    border-color: var(--primary);
    background: #FFF;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}
.search-input {
    width: 100%;
    border: none;
    background: transparent;
    font-size: 0.925rem;
    color: var(--text-main);
    outline: none;
    padding: 0.4rem 0;
}
.search-btn {
    background: var(--primary);
    color: #FFF;
    border: none;
    border-radius: var(--radius-full);
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    white-space: nowrap;
}
.search-btn:hover {
    background: var(--primary-hover);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-md);
    transition: background 0.15s, color 0.15s;
    position: relative;
}
.action-btn:hover {
    background: var(--bg-muted);
    color: var(--primary-dark);
}
.badge-count {
    background: var(--primary);
    color: #FFF;
    font-size: 0.7rem;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 2px;
    right: 2px;
}
.btn-whatsapp-header {
    background: #25D366;
    color: #FFF;
    border-radius: var(--radius-full);
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: transform 0.15s, box-shadow 0.15s;
}
.btn-whatsapp-header:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

/* Secondary Navigation Bar */
.subnav {
    background: #FFF;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    white-space: nowrap;
}
.subnav-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 1.5rem;
    padding: 0.65rem 0;
}
.subnav-item a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-body);
    transition: color 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}
.subnav-item a:hover,
.subnav-item.active a {
    color: var(--primary-dark);
    font-weight: 600;
}

/* -----------------------------------------------------------------------------
   Hero Section
----------------------------------------------------------------------------- */
.hero {
    background: linear-gradient(135deg, #111827 0%, #1F2937 100%);
    color: #FFF;
    padding: 4rem 0 4.5rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.15) 0%, transparent 60%);
    pointer-events: none;
}
.hero-content {
    max-width: 780px;
    position: relative;
    z-index: 2;
}
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(245, 158, 11, 0.2);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: #FCD34D;
    font-size: 0.825rem;
    font-weight: 600;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    margin-bottom: 1.25rem;
}
.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}
.hero-title span {
    color: var(--primary);
}
.hero-sub {
    font-size: 1.2rem;
    color: #D1D5DB;
    margin-bottom: 2rem;
    line-height: 1.6;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}
.btn-primary {
    background: var(--primary);
    color: #FFF;
    font-weight: 700;
    font-size: 1rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}
.btn-outline-white {
    background: transparent;
    color: #FFF;
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-weight: 600;
    font-size: 1rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}
.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #FFF;
}

/* -----------------------------------------------------------------------------
   Trust Highlights Strip
----------------------------------------------------------------------------- */
.trust-strip {
    background: #FFF;
    border-bottom: 1px solid var(--border);
    padding: 1.75rem 0;
}
.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}
.trust-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.trust-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--primary-light);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}
.trust-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.15rem;
}
.trust-desc {
    font-size: 0.825rem;
    color: var(--text-muted);
}

/* -----------------------------------------------------------------------------
   Section Headings
----------------------------------------------------------------------------- */
.section {
    padding: 3.5rem 0;
}
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}
.section-title {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.02em;
    margin-bottom: 0.35rem;
}
.section-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
}
.section-link {
    color: var(--primary-dark);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.section-link:hover {
    text-decoration: underline;
}

/* -----------------------------------------------------------------------------
   Categories Grid
----------------------------------------------------------------------------- */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 1.25rem;
}
.cat-card {
    background: #FFF;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1rem;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 140px;
}
.cat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}
.cat-icon-wrap {
    width: 54px;
    height: 54px;
    background: var(--bg-muted);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: 0.85rem;
    transition: background 0.2s, color 0.2s;
}
.cat-card:hover .cat-icon-wrap {
    background: var(--primary);
    color: #FFF;
}
.cat-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
}

/* -----------------------------------------------------------------------------
   Product Cards & Grid
----------------------------------------------------------------------------- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}
.product-card {
    background: #FFF;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.product-thumb {
    height: 180px;
    background: var(--bg-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.product-thumb img {
    max-height: 150px;
    object-fit: contain;
    transition: transform 0.3s;
}
.product-card:hover .product-thumb img {
    transform: scale(1.05);
}
.product-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    background: var(--primary);
    color: #FFF;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}
.product-details {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.product-brand {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.35rem;
}
.product-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.4;
    margin-bottom: 0.5rem;
    min-height: 2.8em;
}
.product-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}
.product-price-box {
    margin-top: auto;
    margin-bottom: 1rem;
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}
.product-price {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--dark);
}
.product-unit {
    font-size: 0.825rem;
    color: var(--text-muted);
}
.product-retail {
    font-size: 0.85rem;
    text-decoration: line-through;
    color: var(--text-light);
}
.product-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}
.btn-quote {
    background: var(--dark);
    color: #FFF;
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.5rem;
    font-size: 0.825rem;
    font-weight: 600;
    text-align: center;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
}
.btn-quote:hover {
    background: var(--dark-surface);
}
.btn-wa-card {
    background: #25D366;
    color: #FFF;
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.5rem;
    font-size: 0.825rem;
    font-weight: 600;
    text-align: center;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
}
.btn-wa-card:hover {
    background: #1eb857;
}

/* -----------------------------------------------------------------------------
   How It Works Strip
----------------------------------------------------------------------------- */
.how-it-works {
    background: #FFF;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    position: relative;
}
.step-item {
    text-align: center;
}
.step-number {
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: #FFF;
    font-weight: 800;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.1rem;
}
.step-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.35rem;
}
.step-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* -----------------------------------------------------------------------------
   Lucknow Areas Strip
----------------------------------------------------------------------------- */
.locations-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}
.area-pill {
    background: #FFF;
    border: 1px solid var(--border);
    padding: 0.45rem 0.95rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-body);
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.area-pill:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary-dark);
}

/* -----------------------------------------------------------------------------
   FAQ Accordion
----------------------------------------------------------------------------- */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}
.faq-card {
    background: #FFF;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 0.85rem;
    overflow: hidden;
}
.faq-question {
    padding: 1.15rem 1.5rem;
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #FFF;
    border: none;
    width: 100%;
    text-align: left;
}
.faq-question:hover {
    background: var(--bg-muted);
}
.faq-answer {
    padding: 0 1.5rem 1.25rem;
    font-size: 0.925rem;
    color: var(--text-body);
    line-height: 1.6;
}

/* -----------------------------------------------------------------------------
   Floating WhatsApp Button
----------------------------------------------------------------------------- */
.whatsapp-float {
    position: fixed;
    bottom: 1.75rem;
    right: 1.75rem;
    background: #25D366;
    color: #FFF;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.85rem;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45);
    z-index: 999;
    transition: transform 0.2s, box-shadow 0.2s;
}
.whatsapp-float:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.6);
}

/* -----------------------------------------------------------------------------
   Footer
----------------------------------------------------------------------------- */
.footer {
    background: var(--dark);
    color: #9CA3AF;
    padding: 4rem 0 2rem;
    font-size: 0.9rem;
    border-top: 1px solid var(--dark-muted);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
}
.footer-title {
    color: #FFF;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}
.footer-links {
    list-style: none;
}
.footer-links li {
    margin-bottom: 0.65rem;
}
.footer-links a:hover {
    color: var(--primary);
}
.footer-bottom {
    border-top: 1px solid var(--dark-muted);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.825rem;
}

/* -----------------------------------------------------------------------------
   Mobile Responsiveness
----------------------------------------------------------------------------- */
@media (max-width: 900px) {
    .header-search { display: none; }
    .hero-title { font-size: 2.25rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    .hero-title { font-size: 1.85rem; }
    .hero-sub { font-size: 1rem; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .btn-primary, .btn-outline-white { justify-content: center; }
    .products-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .topbar { display: none; }
}