:root {
    --bg: #f5efe6;
    --bg-soft: #fffaf4;
    --surface: rgba(255, 255, 255, 0.72);
    --surface-strong: #ffffff;
    --surface-dark: #132321;
    --text: #1f2b29;
    --muted: #60706a;
    --primary: #0f7f73;
    --primary-dark: #0a5f56;
    --accent: #ef8a57;
    --accent-soft: #f8d6c5;
    --line: rgba(23, 46, 42, 0.11);
    --shadow: 0 24px 70px rgba(27, 47, 43, 0.12);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(239, 138, 87, 0.15), transparent 28%),
        radial-gradient(circle at top right, rgba(15, 127, 115, 0.15), transparent 24%),
        linear-gradient(180deg, #f8f3eb 0%, #fffdf9 100%);
    font-family: "Epilogue", sans-serif;
}

body.is-bn {
    font-family: "Hind Siliguri", sans-serif;
}

.lang-bn {
    display: none;
}

body.is-bn .lang-en {
    display: none !important;
}

body.is-bn .lang-bn {
    display: inline;
}

body.is-bn .lang-bn.d-block,
body.is-bn .lang-bn.blockish,
body.is-bn .lang-bn.lead,
body.is-bn .lang-bn p,
body.is-bn .lang-bn h1,
body.is-bn .lang-bn h2,
body.is-bn .lang-bn h3 {
    display: block;
}

.site-header {
    backdrop-filter: blur(18px);
    background: rgba(250, 245, 238, 0.84);
    border-bottom: 1px solid rgba(30, 50, 46, 0.08);
}

.navbar {
    padding: 1rem 0;
}

.navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
    color: var(--text);
    text-decoration: none;
}

.navbar-brand img {
    border-radius: 18px;
    box-shadow: 0 16px 30px rgba(15, 127, 115, 0.18);
}

.brand-name {
    display: block;
    font-size: 1.05rem;
    letter-spacing: 0.02em;
}

.brand-tagline {
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
}

.nav-link {
    color: rgba(31, 43, 41, 0.78);
    font-weight: 600;
    border-radius: 999px;
    padding: 0.6rem 1rem !important;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(15, 127, 115, 0.08);
}

.nav-actions {
    margin-top: 1rem;
}

.btn {
    border-radius: 999px;
    font-weight: 700;
    padding: 0.82rem 1.35rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary), #13a797);
    box-shadow: 0 14px 32px rgba(15, 127, 115, 0.25);
}

.btn-primary:hover,
.btn-primary:focus {
    border-color: var(--primary-dark);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn-outline-dark {
    border-color: rgba(31, 43, 41, 0.18);
    color: var(--text);
    background: rgba(255, 255, 255, 0.6);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.42);
    color: #fff;
}

.btn-language {
    color: var(--text);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(31, 43, 41, 0.1);
}

.btn-language i {
    margin-right: 0.35rem;
}

.hero-section,
.page-hero {
    padding: 5.5rem 0 2rem;
}

.page-hero-inner {
    padding-bottom: 0;
}

.hero-copy,
.section-intro,
.feature-card,
.service-card,
.timeline-card,
.glass-panel,
.info-card,
.stack-panel,
.form-card,
.contact-card,
.map-frame,
.cta-panel,
.image-panel {
    opacity: 0;
    transform: translateY(28px);
}

.reveal-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    background: rgba(239, 138, 87, 0.14);
    color: #a6542c;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-copy h1,
.page-hero h1 {
    margin: 1.2rem 0 1rem;
    font-size: clamp(2.55rem, 6vw, 4.9rem);
    line-height: 1;
    letter-spacing: -0.06em;
}

.lead {
    color: var(--muted);
    font-size: 1.08rem;
    line-height: 1.8;
}

.hero-actions,
.cta-actions,
.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-top: 1.8rem;
}

.hero-status {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.4rem;
    padding: 0.95rem 1.1rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(15, 127, 115, 0.1);
    box-shadow: var(--shadow);
}

.hero-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1rem;
}

.hero-highlights span,
.service-pill {
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    background: rgba(15, 127, 115, 0.09);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 700;
}

.hero-visual {
    position: relative;
    min-height: 540px;
}

.hero-card {
    position: absolute;
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.58);
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}

.hero-card-main {
    inset: 3rem 1rem 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.hero-card-floating {
    left: 0;
    top: 2rem;
    width: min(280px, 78%);
    padding: 1.3rem 1.4rem;
}

.floating-label {
    display: block;
    margin-bottom: 0.55rem;
    color: var(--primary);
    font-size: 0.76rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-card-floating p {
    margin: 0.45rem 0 0;
    color: var(--muted);
}

.hero-orb {
    position: absolute;
    border-radius: 999px;
    filter: blur(20px);
}

.orb-one {
    left: 1rem;
    top: 0;
    width: 150px;
    height: 150px;
    background: rgba(239, 138, 87, 0.28);
}

.orb-two {
    right: 2rem;
    top: 1.3rem;
    width: 180px;
    height: 180px;
    background: rgba(15, 127, 115, 0.2);
}

.strip-section {
    padding-bottom: 1rem;
}

.info-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    padding: 1.2rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(15, 127, 115, 0.06), rgba(239, 138, 87, 0.08));
    border: 1px solid rgba(15, 127, 115, 0.08);
}

.info-strip div {
    padding: 1rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.7);
}

.info-strip strong,
.info-strip span {
    display: block;
}

.info-strip strong {
    margin-bottom: 0.4rem;
}

.info-strip span {
    color: var(--muted);
}

.section-space {
    padding: 5rem 0;
}

.section-soft {
    background: rgba(255, 255, 255, 0.54);
    border-top: 1px solid rgba(255, 255, 255, 0.6);
    border-bottom: 1px solid rgba(31, 43, 41, 0.05);
}

.section-intro {
    margin-bottom: 2rem;
}

.section-intro h2 {
    margin-top: 1rem;
    font-size: clamp(2rem, 4vw, 3.3rem);
    line-height: 1.08;
    letter-spacing: -0.05em;
}

.section-intro p,
.compact-intro p {
    color: var(--muted);
}

.feature-card,
.service-card,
.glass-panel,
.info-card,
.stack-panel,
.form-card,
.contact-card,
.contact-quick a,
.timeline-card,
.map-frame,
.image-panel {
    height: 100%;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid rgba(31, 43, 41, 0.08);
    box-shadow: var(--shadow);
}

.icon-wrap,
.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 18px;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, rgba(15, 127, 115, 0.13), rgba(239, 138, 87, 0.14));
    color: var(--primary);
    font-size: 1.4rem;
}

.feature-card h3,
.service-card h3,
.info-card h3,
.stack-panel h3,
.contact-card h3,
.glass-panel h2 {
    font-size: 1.22rem;
    line-height: 1.35;
}

.feature-card p,
.service-card p,
.timeline-card p,
.glass-panel p,
.info-card p,
.stack-panel p,
.contact-card p,
.footer-copy,
.footer-bottom p,
.check-list li,
.footer-links a,
.footer-contact li {
    color: var(--muted);
    line-height: 1.8;
}

.inline-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: 1rem;
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
}

.inline-link::after {
    content: "\2192";
}

.timeline-stack,
.stacked-panels,
.contact-stack {
    display: grid;
    gap: 1rem;
}

.timeline-card {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.timeline-card > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 52px;
    height: 52px;
    border-radius: 16px;
    background: var(--surface-dark);
    color: #fff;
    font-weight: 800;
}

.faq-accordion .accordion-item {
    margin-bottom: 1rem;
    border: 1px solid rgba(31, 43, 41, 0.08);
    border-radius: 20px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.78);
}

.faq-accordion .accordion-button {
    background: transparent;
    font-weight: 700;
    box-shadow: none;
}

.faq-accordion .accordion-button:not(.collapsed) {
    color: var(--primary-dark);
    background: rgba(15, 127, 115, 0.06);
}

.faq-accordion .accordion-body {
    color: var(--muted);
    line-height: 1.8;
}

.check-list {
    margin: 1rem 0 0;
    padding-left: 1.2rem;
}

.check-list li {
    margin-bottom: 0.6rem;
}

.image-panel img,
.hero-card-main img {
    width: 100%;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 2rem;
}

.service-filter-btn {
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid rgba(31, 43, 41, 0.1);
    color: var(--text);
}

.service-filter-btn.active {
    color: #fff;
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary), #13a797);
}

.service-meta {
    margin-bottom: 0.95rem;
}

.service-card-large {
    min-height: 100%;
}

.service-grid-item.is-hidden {
    display: none;
}

.contact-quick {
    display: grid;
    gap: 1rem;
}

.contact-quick a {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text);
    text-decoration: none;
}

.contact-quick i {
    font-size: 1.4rem;
    color: var(--primary);
}

.form-card .form-control,
.form-card .form-select {
    border-radius: 16px;
    padding: 0.9rem 1rem;
    border: 1px solid rgba(31, 43, 41, 0.12);
}

.form-card .form-control:focus,
.form-card .form-select:focus {
    box-shadow: 0 0 0 0.2rem rgba(15, 127, 115, 0.14);
    border-color: rgba(15, 127, 115, 0.5);
}

.form-response {
    display: none;
    padding: 0.95rem 1rem;
    border-radius: 14px;
    font-weight: 600;
}

.form-response.is-visible {
    display: block;
}

.form-response.is-success {
    color: #0d5d45;
    background: rgba(18, 160, 102, 0.12);
}

.form-response.is-error {
    color: #952f44;
    background: rgba(214, 63, 96, 0.12);
}

.map-frame {
    padding: 0.75rem;
}

.map-frame iframe {
    width: 100%;
    min-height: 420px;
    border-radius: 20px;
}

.closing-cta {
    padding: 2rem 0 0;
}

.cta-panel {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    border-radius: calc(var(--radius-xl) + 4px);
    background: linear-gradient(135deg, #0f7f73, #0d6158);
    color: #fff;
}

.cta-panel h2 {
    margin: 1rem 0 0;
    max-width: 720px;
    font-size: clamp(1.7rem, 3vw, 2.7rem);
    line-height: 1.1;
}

.site-footer {
    padding: 4rem 0 2.5rem;
    color: rgba(255, 255, 255, 0.78);
    background: #10211f;
}

.site-footer h3,
.site-footer h4,
.site-footer a {
    color: #fff;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-brand img {
    border-radius: 18px;
}

.footer-links,
.footer-contact {
    margin: 1rem 0 0;
    padding: 0;
    list-style: none;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 0.75rem;
}

.footer-links a,
.footer-contact a {
    text-decoration: none;
}

.footer-contact i {
    margin-right: 0.5rem;
    color: #8ed8cf;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.6rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 991.98px) {
    .nav-actions {
        justify-content: flex-start;
        margin-top: 1.25rem;
    }

    .hero-visual {
        min-height: 430px;
    }

    .hero-card-main {
        inset: 1.5rem 0 0 0;
    }

    .hero-card-floating {
        bottom: 0;
    }

    .info-strip {
        grid-template-columns: 1fr;
    }

    .cta-panel,
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 767.98px) {
    .hero-section,
    .page-hero,
    .section-space {
        padding-top: 3.8rem;
        padding-bottom: 3.8rem;
    }

    .hero-copy h1,
    .page-hero h1 {
        font-size: 2.45rem;
    }

    .hero-status,
    .hero-actions,
    .cta-actions,
    .contact-actions {
        width: 100%;
    }

    .hero-actions .btn,
    .cta-actions .btn,
    .contact-actions .btn {
        width: 100%;
    }

    .hero-visual {
        min-height: 360px;
    }

    .hero-card-main {
        padding: 1rem;
    }

    .hero-card-floating {
        position: relative;
        width: 100%;
        margin-top: 1rem;
    }

    .timeline-card {
        flex-direction: column;
    }
}