/* ==========================================================
   টাঙ্গাইল সার্ভিস হাব — Design System
   Palette inspired by Tangail's brick-red homes (terracotta)
   and a deep, trustworthy teal for calm reliability.
   ========================================================== */

:root {
    --color-primary: #F5B700;
    --color-primary-dark: #C79300;
    --color-primary-tint: #FFF3D1;

    --color-secondary: #1C1C1C;
    --color-secondary-dark: #0E0E0E;
    --color-secondary-tint: #E9E9E7;

    --color-bg: #F2F1EE;
    --color-surface: #FFFFFF;
    --color-text: #1C1C1C;
    --color-text-muted: #6E6D68;
    --color-border: #E1E0DA;

    --color-success: #2F7A4D;
    --color-success-tint: #E3F1E7;
    --color-warning: #C98A1D;
    --color-warning-tint: #FBF0DD;

    --font-heading: 'Baloo Da 2', 'Hind Siliguri', sans-serif;
    --font-body: 'Hind Siliguri', 'Baloo Da 2', sans-serif;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --shadow-card: 0 2px 10px rgba(43, 38, 32, 0.06);
    --shadow-card-hover: 0 10px 24px rgba(43, 38, 32, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.65;
    font-size: 16px;
}

h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 0.5em;
    color: var(--color-text);
}

p { margin: 0 0 1em; }
a { color: var(--color-secondary); text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Top bar ---------- */
.topbar {
    background: var(--color-secondary-dark);
    color: #fff;
    font-size: 0.85rem;
}
.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 20px;
    flex-wrap: wrap;
    gap: 6px;
}
.topbar-phone { color: #fff; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.lang-switch { display: flex; align-items: center; gap: 6px; }
.lang-switch a {
    color: rgba(255,255,255,0.65);
    font-weight: 600;
    font-size: 0.85rem;
}
.lang-switch a.active { color: var(--color-primary); }
.lang-switch .lang-sep { color: rgba(255,255,255,0.3); }

/* ---------- Header ---------- */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 50;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    gap: 16px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}
.brand-mark { font-size: 2rem; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-primary-dark);
}
.brand-tagline { font-size: 0.72rem; color: var(--color-text-muted); }

.main-nav { display: flex; align-items: center; gap: 26px; }
.nav-link {
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
}
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 130%;
    left: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-card-hover);
    min-width: 220px;
    padding: 8px 0;
}
.nav-dropdown:hover .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a {
    display: block;
    padding: 10px 16px;
    color: var(--color-text);
    font-weight: 500;
}
.nav-dropdown-menu a:hover { background: var(--color-primary-tint); color: var(--color-primary-dark); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    padding: 13px 26px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-call {
    background: var(--color-primary);
    color: var(--color-secondary-dark);
    box-shadow: 0 4px 14px rgba(245, 183, 0, 0.4);
}
.btn-call:hover { background: var(--color-primary-dark); color: #fff; }
.btn-secondary {
    background: var(--color-secondary);
    color: #fff;
}
.btn-secondary:hover { background: var(--color-secondary-dark); }
.btn-outline {
    background: transparent;
    color: var(--color-secondary);
    border: 2px solid var(--color-secondary);
    padding: 11px 24px;
}
.btn-block { width: 100%; }
.btn-outline-hero {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline-hero:hover { border-color: #fff; background: rgba(255,255,255,0.08); }
.header-call-btn { padding: 10px 20px; font-size: 0.92rem; white-space: nowrap; }

/* ---------- Hero ---------- */
.hero {
    background: linear-gradient(135deg, var(--color-secondary-dark), var(--color-secondary));
    color: #fff;
    padding: 64px 0 56px;
}
.hero-inner { text-align: center; max-width: 760px; margin: 0 auto; }
.hero h1 {
    color: #fff;
    font-size: 2.4rem;
    margin-bottom: 0.4em;
}
.hero p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.88);
    margin-bottom: 1.6em;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-trust {
    margin-top: 34px;
    display: flex;
    gap: 28px;
    justify-content: center;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.85);
}
.hero-trust span { display: flex; align-items: center; gap: 6px; }

/* ---------- Section ---------- */
.section { padding: 56px 0; }
.section-title { text-align: center; margin-bottom: 10px; font-size: 1.8rem; }
.section-subtitle { text-align: center; color: var(--color-text-muted); margin-bottom: 36px; }

/* ---------- Category / Service cards ---------- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 22px;
}
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 26px;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.15s ease, transform 0.15s ease;
    display: block;
}
.card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-3px); }
.card-icon {
    font-size: 2rem;
    background: var(--color-primary-tint);
    color: var(--color-primary-dark);
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}
.card h3 { font-size: 1.15rem; margin-bottom: 6px; color: var(--color-text); }
.card p { color: var(--color-text-muted); font-size: 0.92rem; margin-bottom: 0; }

/* ---------- How it works ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.step {
    text-align: center;
    padding: 10px;
}
.step-num {
    width: 46px; height: 46px;
    background: var(--color-primary);
    color: var(--color-secondary-dark);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-heading);
    font-weight: 800;
    margin: 0 auto 14px;
}
.step h4 { margin-bottom: 6px; }
.step p { color: var(--color-text-muted); font-size: 0.9rem; }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    padding: 16px 0 0;
}
.breadcrumb a { color: var(--color-secondary); }

/* ---------- Service detail ---------- */
.service-hero {
    background: var(--color-primary-tint);
    padding: 40px 0;
    border-radius: var(--radius-lg);
    margin: 20px 0 40px;
}
.service-hero-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.service-hero h1 { color: var(--color-secondary-dark); font-size: 1.8rem; margin-bottom: 8px; }
.service-price-tag {
    background: var(--color-success-tint);
    color: var(--color-success);
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    display: inline-block;
    font-size: 0.88rem;
}

/* ---------- Quote form ---------- */
.quote-form-wrap {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 640px;
    margin: 0 auto;
    box-shadow: var(--shadow-card);
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 7px;
    font-size: 0.95rem;
}
.form-group .required { color: var(--color-primary); }
.form-control {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    background: var(--color-bg);
    color: var(--color-text);
}
.form-control:focus {
    outline: none;
    border-color: var(--color-secondary);
    background: #fff;
}
textarea.form-control { resize: vertical; min-height: 100px; }
.form-hint { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 4px; }
.form-alt-call {
    text-align: center;
    margin-top: 22px;
    padding-top: 22px;
    border-top: 1px dashed var(--color-border);
    font-size: 0.92rem;
    color: var(--color-text-muted);
}

/* ---------- Alert / thank you ---------- */
.alert-success {
    background: var(--color-success-tint);
    border: 1px solid var(--color-success);
    color: var(--color-success);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}
.thankyou-box {
    text-align: center;
    max-width: 560px;
    margin: 40px auto;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 44px 32px;
    box-shadow: var(--shadow-card);
}
.thankyou-box .icon { font-size: 3.2rem; margin-bottom: 14px; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-secondary-dark);
    color: rgba(255,255,255,0.85);
    margin-top: 60px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    padding: 48px 20px 30px;
}
.footer-col h3, .footer-col h4 { color: #fff; }
.footer-col a { display: block; color: rgba(255,255,255,0.78); margin-bottom: 8px; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.12);
    padding: 16px 0;
    font-size: 0.85rem;
    text-align: center;
    color: rgba(255,255,255,0.6);
}

/* ---------- Mobile call FAB ---------- */
.mobile-call-fab {
    display: none;
    position: fixed;
    bottom: 18px;
    right: 18px;
    background: var(--color-primary);
    color: var(--color-secondary-dark);
    padding: 14px 22px;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 700;
    box-shadow: 0 6px 18px rgba(245, 183, 0, 0.5);
    z-index: 60;
}

/* ---------- Hero stats ---------- */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 36px;
    flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat-num {
    display: block;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.8rem;
    color: var(--color-primary);
}
.hero-stat-label {
    display: block;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
    margin-top: 2px;
}

/* ---------- Category icon strip ---------- */
.cat-strip-wrap {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 18px 0;
}
.cat-strip {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    scrollbar-width: none;
}
.cat-strip::-webkit-scrollbar { display: none; }
.cat-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    padding: 9px 18px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
    transition: all 0.15s ease;
}
.cat-pill:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-secondary-dark);
}
.cat-pill-icon { font-size: 1.1rem; }

/* ---------- Eyebrow label ---------- */
.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 6px;
    text-align: center;
}

/* ---------- Why Choose Us ---------- */
.why-choose { background: var(--color-bg); }
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-top: 30px;
}
.why-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 30px 26px;
    text-align: center;
    box-shadow: var(--shadow-card);
    border-top: 4px solid var(--color-primary);
}
.why-icon { font-size: 2.2rem; margin-bottom: 14px; }
.why-card h3 { font-size: 1.1rem; }
.why-card p { color: var(--color-text-muted); font-size: 0.92rem; margin-bottom: 0; }

/* ---------- CTA banner ---------- */
.cta-banner {
    background: var(--color-primary);
    padding: 40px 0;
}
.cta-banner-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.cta-banner h2 {
    color: var(--color-secondary-dark);
    font-size: 1.5rem;
    margin-bottom: 4px;
}
.cta-banner p { color: rgba(28,28,28,0.75); margin: 0; }
.cta-banner .btn-call { background: var(--color-secondary-dark); color: #fff; }
.cta-banner .btn-call:hover { background: #000; color: var(--color-primary); }

/* ---------- Testimonials ---------- */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
}
.testimonial-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 26px;
    box-shadow: var(--shadow-card);
}
.testimonial-stars { font-size: 0.85rem; margin-bottom: 10px; }
.testimonial-card p { color: var(--color-text); font-style: italic; margin-bottom: 16px; }
.testimonial-author { display: flex; flex-direction: column; font-size: 0.88rem; }
.testimonial-author span { color: var(--color-text-muted); font-size: 0.82rem; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 6px 20px;
}
.faq-item summary {
    cursor: pointer;
    font-weight: 700;
    padding: 14px 0;
    list-style: none;
    position: relative;
    padding-right: 24px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 12px;
    font-size: 1.3rem;
    color: var(--color-primary-dark);
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p { color: var(--color-text-muted); padding-bottom: 16px; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
    .main-nav { display: none; }
    .header-call-btn { padding: 9px 16px; font-size: 0.85rem; }
    .hero h1 { font-size: 1.7rem; }
    .mobile-call-fab { display: inline-flex; align-items: center; gap: 6px; }
    .quote-form-wrap { padding: 22px; }
    .service-hero-inner { flex-direction: column; align-items: flex-start; }
    .hero-stats { gap: 24px; }
    .cta-banner-inner { text-align: center; justify-content: center; }
}