@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Bengali:wght@400;600;700;800&display=swap');

/* Reset & Variables */
*, *::before, *::after { 
    box-sizing: border-box; 
    margin: 0; 
    padding: 0; 
}

:root {
    --blue: #1a3a6b;
    --blue-dark: #0f2347;
    --blue-light: #e8eef8;
    --gold: #c8902a;
    --gold-light: #fdf3e3;
    --text: #1a1a1a;
    --muted: #555;
    --red-cta: #e53935;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,0.10);
}

html { scroll-behavior: smooth; }

.nibras-landing-wrapper {
    font-family: 'Noto Sans Bengali', sans-serif; 
    color: var(--text); 
    background: #f5f7fc; 
    line-height: 1.7;
}

/* STICKY BAR */
.sticky-bar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 999;
    background: var(--blue-dark);
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 24px; box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.sticky-bar .logo-name { color: #fff; font-weight: 700; font-size: 1rem; }
.sticky-bar .logo-name span { color: var(--gold); }
.sticky-bar a.call-btn {
    background: var(--red-cta); color: #fff; text-decoration: none; border-radius: 50px;
    padding: 8px 20px; font-weight: 700; font-size: .95rem;
    display: flex; align-items: center; gap: 8px;
    animation: pulse 2s infinite; white-space: nowrap;
}

@keyframes pulse {
    0%,100% { box-shadow: 0 0 0 0 rgba(229,57,53,.5); }
    50% { box-shadow: 0 0 0 10px rgba(229,57,53,0); }
}

/* HERO */
.hero {
    margin-top: 56px;
    background: linear-gradient(135deg, var(--blue-dark) 0%, #1e3d8f 60%, #2756c5 100%);
    color: #fff; padding: 64px 24px 56px; text-align: center;
    position: relative; overflow: hidden; z-index: 1;
}
.hero::before {
    content: ''; position: absolute; inset: 0; z-index: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-badge, .hero h1, .hero p, .hero-phone-link, .hero-cta-group {
    position: relative; z-index: 2;
}
.hero-badge { 
    display: inline-block; background: rgba(255,255,255,.15); 
    padding: 6px 18px; border-radius: 50px; font-size: .9rem; 
    font-weight: 600; margin-bottom: 16px; color: #fff;
}
.hero h1 { 
    font-size: clamp(1.8rem,5vw,3rem); font-weight: 800; 
    line-height: 1.3; margin-bottom: 12px; color: #fff; 
}
.hero h1 span { color: #a8c4f0; }
.hero p { 
    font-size: 1.05rem; opacity: .9; max-width: 580px; 
    margin: 0 auto 28px; 
}
.hero-phone-link {
    display: inline-flex; align-items: center; gap: 10px;
    background: rgba(255,255,255,.12); border: 2px solid rgba(255,255,255,.35);
    color: #fff; text-decoration: none; border-radius: 50px;
    padding: 10px 26px; font-size: 1.25rem; font-weight: 800;
    margin-bottom: 24px; letter-spacing: .5px;
    transition: background .2s;
}
.hero-phone-link:hover { background: rgba(255,255,255,.22); }
.hero-cta-group { 
    display: flex; gap: 14px; justify-content: center; 
    flex-wrap: wrap; 
}
.btn-primary {
    background: var(--red-cta); color: #fff; padding: 16px 32px; 
    border-radius: 50px; font-size: 1.05rem; font-weight: 800; 
    text-decoration: none; display: inline-flex; align-items: center; 
    gap: 10px; animation: pulse 2s infinite; 
    box-shadow: 0 6px 20px rgba(229,57,53,.45);
}
.btn-secondary {
    background: rgba(255,255,255,.15); color: #fff; 
    padding: 16px 28px; border-radius: 50px; font-size: 1rem; 
    font-weight: 700; text-decoration: none; 
    border: 2px solid rgba(255,255,255,.5); 
    display: inline-flex; align-items: center; gap: 8px;
}

/* TRUST STRIP */
.trust-strip { 
    background: var(--gold); color: #fff; 
    display: flex; justify-content: center; flex-wrap: wrap; 
}
.trust-item {
    padding: 14px 20px; display: flex; align-items: center; gap: 8px;
    font-weight: 700; font-size: .88rem; 
    border-right: 1px solid rgba(255,255,255,.3);
}
.trust-item:last-child { border-right: none; }

/* CAROUSEL */
.carousel-section { 
    background: #0f2347; padding: 40px 20px; 
}
.carousel-section .section-title { color: #fff; margin-bottom: 6px; }
.carousel-section .divider { margin-bottom: 28px; }
.carousel-wrap { 
    position: relative; max-width: 820px; margin: 0 auto; 
    overflow: hidden; border-radius: 16px; 
    box-shadow: 0 12px 40px rgba(0,0,0,.4); 
}
.carousel-track { 
    display: flex; transition: transform .5s ease; 
}
.carousel-slide { 
    min-width: 100%; position: relative; background: #1a3a6b; 
}
.carousel-slide img { 
    width: 100%; height: 340px; object-fit: cover; 
    display: block; filter: brightness(.85); 
}
.slide-caption {
    position: absolute; bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,.75));
    color: #fff; padding: 20px 24px 16px;
    font-weight: 700; font-size: 1rem;
}
.carousel-btn {
    position: absolute; top: 50%; transform: translateY(-50%);
    background: rgba(255,255,255,.2); backdrop-filter: blur(6px);
    border: none; color: #fff; width: 56px; height: 56px; 
    border-radius: 50%; font-size: 1.3rem; cursor: pointer; 
    z-index: 5; transition: background .2s; 
    display: flex; align-items: center; justify-content: center;
}
.carousel-btn:hover { background: rgba(255,255,255,.4); }
.carousel-btn.prev { left: 14px; }
.carousel-btn.next { right: 14px; }
.carousel-dots { 
    display: flex; justify-content: center; gap: 8px; margin-top: 16px; 
}
.dot { 
    width: 10px; height: 10px; border-radius: 50%; 
    background: rgba(255,255,255,.35); cursor: pointer; 
    transition: background .2s, transform .2s; 
}
.dot.active { background: var(--gold); transform: scale(1.3); }

/* COMMON SECTION STYLES */
section { padding: 60px 20px; }
.container { max-width: 960px; margin: 0 auto; }
.section-title { 
    text-align: center; font-size: clamp(1.5rem,3.5vw,2.1rem); 
    font-weight: 800; color: var(--blue-dark); margin-bottom: 8px; 
}
.section-sub { 
    text-align: center; color: var(--muted); 
    margin-bottom: 40px; font-size: 1rem; 
}
.divider { 
    width: 60px; height: 4px; background: var(--gold); 
    border-radius: 2px; margin: 8px auto 16px; 
}

/* CTA SECTION */
.cta-section { 
    background: linear-gradient(135deg, var(--blue-dark), #1e3d8f); 
    color: #fff; text-align: center; padding: 60px 20px; 
}
.cta-section h2 { 
    font-size: clamp(1.5rem,4vw,2.2rem); font-weight: 800; 
    margin-bottom: 12px; color: #fff; 
}
.cta-section p { opacity: .9; margin-bottom: 32px; font-size: 1.05rem; }
.phone-big {
    display: inline-flex; align-items: center; gap: 14px;
    background: var(--red-cta); color: #fff; padding: 18px 40px; 
    border-radius: 50px; font-size: clamp(1.2rem,4vw,1.7rem); 
    font-weight: 800; text-decoration: none;
    box-shadow: 0 8px 28px rgba(229,57,53,.5); 
    animation: pulse 2s infinite; margin-bottom: 12px;
}
.wa-btn {
    display: inline-flex; align-items: center; gap: 10px;
    background: #25d366; color: #fff; padding: 14px 28px; 
    border-radius: 50px; font-size: 1rem; font-weight: 800; 
    text-decoration: none; box-shadow: 0 6px 20px rgba(37,211,102,.4); 
    margin: 6px;
}
.cta-note { font-size: .88rem; opacity: .7; margin-top: 12px; }

/* VIDEO */
.video-section { background: #fff; }
.yt-thumb-link {
    display: block; max-width: 720px; margin: 0 auto;
    border-radius: 16px; overflow: hidden;
    box-shadow: 0 12px 40px rgba(0,0,0,.2);
    position: relative; text-decoration: none;
}
.yt-thumb-link img { 
    width: 100%; display: block; transition: filter .3s; 
}
.yt-thumb-link:hover img { filter: brightness(.75); }
.yt-play-btn {
    position: absolute; top: 50%; left: 50%; 
    transform: translate(-50%, -60%);
    width: 76px; height: 76px; border-radius: 50%;
    background: var(--red-cta); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem; padding-left: 6px;
    box-shadow: 0 6px 24px rgba(0,0,0,.4);
    transition: transform .2s, background .2s;
}
.yt-thumb-link:hover .yt-play-btn { 
    background: #c62828; transform: translate(-50%, -60%) scale(1.1); 
}
.yt-label {
    position: absolute; bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,.7));
    color: #fff; text-align: center; padding: 32px 20px 16px;
    font-weight: 700; font-size: 1rem;
}

/* DEPARTMENTS */
.dept-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); 
    gap: 20px; 
}
.dept-card {
    background: #fff; border-radius: var(--radius); 
    box-shadow: var(--shadow); overflow: hidden; 
    border-top: 5px solid var(--blue);
    transition: transform .2s, box-shadow .2s;
}
.dept-card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 12px 32px rgba(0,0,0,.15); 
}
.dept-card-body { padding: 24px 20px; }
.dept-num { 
    font-size: 2.2rem; font-weight: 800; line-height: 1; 
    margin-bottom: 8px; -webkit-text-stroke: 2px var(--blue); 
    color: transparent; 
}
.dept-card h3 { 
    font-size: 1.05rem; font-weight: 800; 
    color: var(--blue-dark); margin-bottom: 8px; 
}
.dept-card p { font-size: .88rem; color: var(--muted); }
.highlight-banner {
    background: linear-gradient(135deg, var(--gold), #e8a030); 
    color: #fff; border-radius: var(--radius); 
    padding: 20px 28px; display: flex; align-items: center; 
    gap: 16px; margin-top: 28px;
    box-shadow: 0 6px 20px rgba(200,144,42,.35);
}
.highlight-banner .hl-icon { font-size: 2.2rem; flex-shrink: 0; }
.highlight-banner h4 { 
    font-size: 1.1rem; font-weight: 800; margin-bottom: 4px; 
}
.highlight-banner p { font-size: .9rem; opacity: .92; }

/* TESTIMONIALS */
.testimonials-section { background: var(--blue-light); }
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.testimonial-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    transition: transform .2s, box-shadow .2s;
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,.15);
}
.testimonial-rating {
    font-size: 1.2rem;
    margin-bottom: 12px;
}
.testimonial-text {
    font-style: italic;
    color: var(--muted);
    margin-bottom: 16px;
    line-height: 1.6;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid #eee;
}
.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}
.testimonial-avatar-placeholder {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--blue);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}
.testimonial-name {
    font-weight: 700;
    color: var(--blue-dark);
}
.testimonial-designation {
    font-size: .85rem;
    color: var(--muted);
}

/* FAQ ACCORDION */
.faq-section { background: #fff; }
.faq-accordion {
    max-width: 700px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid #ddd;
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    background: #fff;
}
.faq-question {
    padding: 18px 24px;
    font-weight: 700;
    color: var(--blue-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background .2s;
}
.faq-question:hover {
    background: var(--blue-light);
}
.faq-item.active .faq-question {
    background: var(--blue);
    color: #fff;
}
.faq-icon {
    transition: transform .3s;
    font-size: .8rem;
}
.faq-item.active .faq-icon {
    transform: rotate(180deg);
}
.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: all .3s ease;
    color: var(--muted);
    line-height: 1.7;
}
.faq-item.active .faq-answer {
    padding: 18px 24px;
    max-height: 500px;
}

/* FEES */
.fees-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); 
    gap: 20px; max-width: 600px; margin: 0 auto; 
}
.fee-card { 
    background: var(--blue-light); border-radius: var(--radius); 
    padding: 28px 20px; text-align: center; 
    border: 2px solid transparent; 
    transition: border-color .2s, transform .2s; 
}
.fee-card:hover { 
    border-color: var(--blue); transform: translateY(-3px); 
}
.fee-card .fee-label { 
    font-size: .85rem; color: var(--muted); 
    font-weight: 600; margin-bottom: 8px; 
}
.fee-card .fee-amount { 
    font-size: 2rem; font-weight: 800; color: var(--blue-dark); 
}

/* TRANSPORT */
.transport-box { 
    background: var(--gold-light); border-radius: var(--radius); 
    padding: 24px 28px; border-left: 5px solid var(--gold); 
    max-width: 680px; margin: 0 auto; 
}
.transport-box h4 { 
    font-weight: 800; color: var(--blue-dark); 
    margin-bottom: 10px; font-size: 1.05rem; 
}
.transport-box p { font-size: .92rem; color: var(--muted); }

/* STEPS */
.steps { 
    display: flex; flex-direction: column; gap: 0; 
    max-width: 620px; margin: 0 auto; 
}
.step { 
    display: flex; gap: 20px; align-items: flex-start; 
    padding: 20px 0; border-bottom: 1px dashed #ddd; 
}
.step:last-child { border-bottom: none; }
.step-num { 
    width: 44px; height: 44px; border-radius: 50%; 
    background: var(--blue); color: #fff; 
    display: flex; align-items: center; justify-content: center; 
    font-weight: 800; font-size: 1.1rem; flex-shrink: 0; 
}
.step-body h4 { 
    font-weight: 700; color: var(--blue-dark); margin-bottom: 4px; 
}
.step-body p { font-size: .9rem; color: var(--muted); }

/* ADDRESS */
.address-section { background: var(--blue-light); }
.addr-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); 
    gap: 20px; 
}
.addr-card { 
    background: #fff; padding: 24px; border-radius: var(--radius); 
    box-shadow: var(--shadow); text-align: center; 
}
.addr-card .addr-icon { font-size: 2rem; margin-bottom: 10px; }
.addr-card h4 { 
    font-weight: 700; color: var(--blue-dark); margin-bottom: 6px; 
}
.addr-card p { font-size: .88rem; color: var(--muted); }
.addr-card a.call-link { 
    display: inline-flex; align-items: center; gap: 6px; 
    background: var(--blue); color: #fff; padding: 10px 20px; 
    border-radius: 50px; font-weight: 700; font-size: .95rem; 
    margin-top: 8px; text-decoration: none; 
}
.addr-card a.wa-link { 
    display: inline-flex; align-items: center; gap: 6px; 
    background: #25d366; color: #fff; padding: 9px 16px; 
    border-radius: 50px; font-weight: 700; font-size: .85rem; 
    margin-top: 6px; text-decoration: none; 
}

/* FOOTER */
footer { 
    background: var(--blue-dark); color: rgba(255,255,255,.75); 
    text-align: center; padding: 24px 20px; font-size: .85rem; 
}
footer strong { color: #fff; }

/* MOBILE BOTTOM BAR */
.mobile-bottom-bar {
    display: none;
    position: fixed; bottom: 16px; left: 50%; 
    transform: translateX(-50%); z-index: 999;
    width: 90%; background: var(--red-cta);
    padding: 14px 20px; border-radius: 50px;
    box-shadow: 0 6px 24px rgba(229,57,53,0.5);
}
.mobile-bottom-bar a {
    display: flex; align-items: center; justify-content: center; 
    gap: 10px; color: #fff; text-decoration: none;
    font-weight: 800; font-size: .85rem;
    animation: pulse 2s infinite;
}

/* RESPONSIVE */
@media (max-width: 600px) {
    .mobile-bottom-bar { display: block; }
    .nibras-landing-wrapper { padding-bottom: 64px; }
    .sticky-bar .logo-name { font-size: .82rem; }
    .sticky-bar a.call-btn { padding: 8px 14px; font-size: .82rem; }
    .trust-item { font-size: .78rem; padding: 10px 12px; }
    .carousel-slide img { height: 220px; }
    .hero-phone-link { font-size: 1.05rem; }
}