:root {
    --ink: #000e22;
    --panel: #1b212b;
    --panel-raised: #232b37;
    --panel-line: #2e3644;
    --parchment: #ede7da;
    --parchment-ink: #2a2620;
    --signal: #ff8a3d;
    --signal-dim: #a85a26;
    --circuit: #4fd1c5;
    --text: #eceef1;
    --text-muted: #8a93a3;
    --font-head: "Space Grotesk", sans-serif;
    --font-body: "Space Grotesk", sans-serif;
    --font-bangla: 'Hind Siliguri', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--ink);
    color: var(--text);
    font: 15px/1.6 var(--font-body);
}

body, .site-header, .ticker-bar, .partner-card, .method-card, .payment-strip {
    transition: background-color .25s ease, color .25s ease, border-color .25s ease;
}

h1, h2, h3, h4, .brand-name, .font-head {
    font-family: var(--font-head);
    letter-spacing: 0;
}

a {
    text-decoration: none;
}

.text-muted-2, .section-eyebrow {
    color: var(--text-muted);
}

.text-signal {
    color: var(--signal) !important;
}

.bg-panel {
    background-color: var(--panel);
}

.bg-schematic {
    background-image: radial-gradient(var(--panel-line) 1px, transparent 1px);
    background-size: 22px 22px;
    background-position: -8px -8px;
}

.site-header {
    background-color: rgba(18, 22, 28, .94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--panel-line);
}

.brand-lockup {
    color: var(--text);
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--signal), #c9611c);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--ink);
    font: 700 18px var(--font-head);
}

.small-mark {
    width: 30px;
    height: 30px;
    font-size: 14px;
}

.brand-name {
    display: block;
    color: var(--text);
    font-weight: 700;
    font-size: 1.05rem;
    line-height: 1.1;
}

.brand-sub {
    display: block;
    color: var(--text-muted);
    font-size: .68rem;
    letter-spacing: .06em;
}

.menu-button, .theme-button {
    border: 1px solid var(--panel-line);
    background: transparent;
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.menu-button {
    border: 0;
    font-size: 1.55rem;
    padding: 0;
}

.theme-button {
    width: 34px;
    height: 34px;
    border-radius: 6px;
}

.theme-button:hover, .menu-button:hover {
    color: var(--signal);
    border-color: var(--signal);
}

.nav-link-custom {
    color: var(--text-muted);
    font-weight: 500;
    padding: .5rem .9rem;
    border-radius: 8px;
    font-size: .92rem;
}

.nav-link-custom:hover, .nav-link-custom.active {
    color: var(--text);
    background-color: var(--panel-raised);
}

.btn-signal {
    background: #23a766;
    border-color: #23a766;
    color: var(--ink);
    font-weight: 600;
}

.btn-signal:hover {
    background: #ffa165;
    border-color: #ffa165;
    color: var(--ink);
}

.btn-outline-line {
    border: 1px solid #23a766;
    color: #23a766;
    font-weight: 500;
}

.btn-outline-line:hover {
    border-color: var(--circuit);
    color: var(--circuit);
}

.offcanvas-dark {
    background: var(--panel);
    color: var(--text);
}

.hero-zone {
    min-height: 500px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--panel-raised);
    border: 1px solid var(--panel-line);
    padding: .35rem .85rem;
    border-radius: 100px;
    color: var(--text-muted);
    font-size: .8rem;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--circuit);
}

.hero-heading {
    color: var(--text);
    font-size: clamp(2rem, 3.8vw, 3.2rem);
    font-weight: 700;
    line-height: 1.1;
}

.hero-sub {
    color: var(--text-muted);
}

.hero-note {
    max-width: 600px;
    padding-left: 1rem;
    border-left: 3px solid var(--signal);
    color: var(--text-muted);
}

.trust-panel {
    max-width: 620px;
    padding: 1.1rem 1.3rem;
    border-radius: 14px;
    background: var(--parchment);
    color: var(--parchment-ink);
}

.trust-stat-num {
    color: var(--signal-dim);
    font: 600 1.35rem var(--font-mono);
}

.trust-stat-label {
    color: #55503f;
    font-size: .78rem;
}

.trust-divider {
    width: 1px;
    height: 32px;
    background: rgba(42, 38, 32, .18);
}

.hero-visual {
    overflow: hidden;
}

.carousel-track {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    padding-bottom: 2px;
}

.carousel-track::-webkit-scrollbar {
    display: none;
}

.field-slide {
    min-width: 90%;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    scroll-snap-align: start;
    flex-shrink: 0;
    padding: 1.4rem;
    border: 1px solid var(--panel-line);
    border-radius: 10px;
    background-color: var(--panel-raised);
    background-position: center;
    background-size: cover;
}

.field-tag {
    color: var(--circuit);
    font: 600 .72rem var(--font-mono);
    text-transform: uppercase;
}

.field-title {
    margin-top: .35rem;
    font: 600 1.25rem var(--font-head);
}

.field-desc {
    color: #c3c9d2;
    font-size: .86rem;
}

.hero-placeholder {
    min-height: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .75rem;
    background: linear-gradient(160deg, var(--panel-raised), var(--panel));
    border: 1px solid var(--panel-line);
    border-radius: 16px;
    color: var(--circuit);
    font-family: var(--font-head);
}

.hero-placeholder i {
    font-size: 3rem;
}

@media (min-width: 768px) {
    .field-slide {
        min-width: 58%;
    }
}

@media (min-width: 992px) {
    .field-slide {
        min-width: 70%;
        min-height: 340px;
    }
}

.ticker-bar {
    background: var(--panel);
    border-top: 1px solid var(--panel-line);
    border-bottom: 1px solid var(--panel-line);
}

.ticker-tag {
    flex-shrink: 0;
    padding: .3rem .6rem;
    border-radius: 4px;
    background: var(--signal);
    color: var(--ink);
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
}

.ticker-track {
    display: inline-block;
    white-space: nowrap;
    color: var(--text-muted);
    font-size: .85rem;
    animation: ticker-scroll 26s linear infinite;
}

@keyframes ticker-scroll {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}

.section-heading {
    color: var(--text);
    font-size: 1.45rem;
    font-weight: 600;
}

.count-badge {
    padding: .2rem .55rem;
    border-radius: 100px;
    background: var(--panel-raised);
    color: var(--signal);
    font: 500 .7rem var(--font-mono);
}

.search-box {
    max-width: 260px;
}

.search-box .input-group-text, .search-box .form-control {
    background: var(--panel);
    border-color: var(--panel-line);
    color: var(--text);
}

.search-box .input-group-text {
    color: var(--text-muted);
}

.search-box .form-control:focus {
    box-shadow: none;
    border-color: var(--circuit);
}

.search-box .form-control::placeholder {
    color: var(--text-muted);
}

.partner-card {
    height: 225px;
    perspective: 1200px;
    background: transparent;
    border-left: 0;
}

.partner-card:hover {
    border-left-color: transparent;
}

.partner-card-inner { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform .55s cubic-bezier(.2, .8, .3, 1); }
.partner-card.is-flipped .partner-card-inner { transform: rotateY(180deg); }
.partner-face { position: absolute; inset: 0; padding: 1.1rem; border: 1px solid var(--panel-line); border-left: 3px solid var(--circuit); border-radius: 12px; backface-visibility: hidden; background: linear-gradient(145deg, rgba(35, 43, 55, .98), rgba(27, 33, 43, .98)); }
.partner-face:hover { border-left-color: var(--signal); }
.partner-front { display: flex; flex-direction: column; }
.partner-back { transform: rotateY(180deg); border-left-color: var(--signal); display: flex; flex-direction: column; justify-content: center; }

.partner-card-head, .partner-actions, .spec-row {
    display: flex;
    align-items: center;
    justify-content: center;
}

.cat-label, .partner-index, .demo-label {
    color: var(--text-muted);
    font: 500 .68rem var(--font-mono);
    text-transform: uppercase;
}

.partner-index {
    color: var(--circuit);
}

.partner-logo {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0px;
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.partner-card h3 {
    margin: 0 0 .7rem;
    color: var(--text);
    font-size: 1.1rem;
}

.partner-actions {
    border-top: 1px dashed var(--panel-line);
    padding-top: .8rem;
}

.spec-toggle {
    display: flex;
    align-items: center;
    gap: .35rem;
    padding: 0;
    border: 0;
    background: none;
    color: var(--circuit);
    font-size: .82rem;
    font-weight: 600;
}

.spec-toggle i {
    transition: transform .2s ease;
}

.partner-card.is-open .spec-toggle i {
    transform: rotate(180deg);
}

.partner-link {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--panel-line);
    border-radius: 50%;
    color: var(--signal);
}

.demo-label {
    color: var(--signal);
}

.credential-row {
    display: flex;
    flex-direction: column;
    align-items: start;
    gap: 2px;
    border-bottom: 1px dotted var(--panel-line);
    font-size: .8rem;
    padding: .5rem 0;
}

.credential-row span {
    color: var(--text-muted);
    font-size: 11px;
}

.credential-row strong {
    color: var(--text);
    font: 500 .78rem var(--font-mono);
}

.back-button, .copy-button { border: 1px solid var(--panel-line); background: transparent; color: var(--text-muted); }
.back-button { width: 30px; height: 30px; border-radius: 50%; }
.copy-button { width: 20px; height: 20px; border-radius: 4px; color: var(--circuit); margin-left: 3px; }
.back-button:hover, .copy-button:hover { border-color: var(--signal); color: var(--signal); }

.placeholder-note {
    padding: 1.5rem;
    border: 1px dashed var(--panel-line);
    color: var(--text-muted);
    text-align: center;
}

.method-card, .disclosure-panel {
    height: 100%;
    padding: 1.35rem;
    background: var(--panel);
    border: 1px solid var(--panel-line);
    border-radius: 12px;
}

.method-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: .9rem;
    border-radius: 10px;
    font-size: 1.3rem;
}

.method-icon.circuit {
    color: var(--circuit);
    background: rgba(79, 209, 197, .12);
}

.method-icon.signal {
    color: var(--signal);
    background: rgba(255, 138, 61, .12);
}

.method-icon.violet {
    color: #c792ea;
    background: rgba(199, 146, 234, .12);
}

.method-card h3 {
    font-size: 1rem;
}

.method-card p, .disclosure-panel p {
    margin: 0;
    color: var(--text-muted);
    font-size: .88rem;
}

.disclosure-panel {
    height: auto;
    background: var(--panel-raised);
}

.payment-strip {
    overflow: hidden;
    padding: 1.25rem 0;
    border: 1px solid var(--panel-line);
    border-radius: 14px;
    background: var(--panel);
}

.payment-track {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 2rem;
    width: max-content;
    min-width: 100%;
    animation: payment-scroll 24s linear infinite;
}

.payment-track img {
    width: 90px;
    height: 48px;
    object-fit: contain;
    border-radius: 6px;
    background: #fff;
    padding: 4px;
}

@keyframes payment-scroll {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-35%);
    }
}

.fab-ask {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 1040;
    width: 54px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--signal);
    color: var(--ink);
    font-size: 1.35rem;
    box-shadow: 0 8px 24px rgba(255, 138, 61, .35);
}

.site-footer {
    background: var(--panel);
    border-top: 1px solid var(--panel-line);
}

.footer-copy {
    max-width: 46ch;
    font-size: .88rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.footer-links a {
    color: var(--text-muted);
    font-size: .88rem;
}

.footer-links a:hover {
    color: var(--circuit);
}

.site-footer hr {
    border-color: var(--panel-line);
    margin: 1.5rem 0 1rem;
}

.footer-legal {
    font-size: .76rem;
}

html[data-theme="light"] {
    --ink: #eef2f5;
    --panel: #ffffff;
    --panel-raised: #e4ebee;
    --panel-line: #c8d3d8;
    --text: #182127;
    --text-muted: #5c6a71;
    --parchment: #fff8e8;
}

html[data-theme="light"] .site-header {
    background-color: rgba(238, 242, 245, .94);
}

html[data-theme="light"] .hero-note {
    color: #516069;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}

@media (max-width: 575.98px) {
    .hero-heading {
        font-size: 28px;
    }

    .trust-panel {
        gap: 1rem !important;
    }

    .search-box {
        max-width: none;
    }

    .payment-track {
        justify-content: flex-start;
    }

    .fab-ask {
        right: 1rem;
        bottom: 1rem;
    }
}

.bangla {
    font-family: var(--font-bangla);
}