:root {
    --primary: #4338ca;
    --primary2: #635bff;
    --dark: #090d1a;
    --accent: #0ea5e9;
    --gold: #d6a756;
    --bg: #f7f8fc;
    --card: #fff;
    --muted: #667085;
    --radius: 24px;
    --shadow: 0 20px 60px rgba(9, 13, 26, 0.11);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 84px;
}

body {
    font-family: "Hind Siliguri", sans-serif;
    background: var(--bg);
    color: var(--dark);
    overflow-x: hidden;
}

a {
    text-decoration: none;
}

.section-pad {
    padding: 88px 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: 999px;
    background: #ede9fe;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.92rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 700;
    line-height: 1.14;
    letter-spacing: -0.02em;
}

.section-copy {
    color: var(--muted);
    font-size: 1.08rem;
}

.section-intro {
    max-width: 720px;
}

.text-cyan {
    color: #67e8f9;
}

.text-slate {
    color: #94a3b8;
}

.text-gradient {
    background: linear-gradient(120deg, var(--primary2), var(--accent));
    -webkit-background-clip: text;
    color: transparent;
}

.navbar {
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    transition: 0.3s;
}

.navbar.scrolled {
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.08);
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 8px 22px rgba(91, 33, 182, 0.25);
}

.navbar-brand {
    font-weight: 700;
    color: var(--dark) !important;
}

.nav-link {
    font-weight: 600;
    color: #334155 !important;
    margin: 0 5px;
}

.nav-link:hover {
    color: var(--primary) !important;
}

.phone {
    font-weight: 700;
    color: var(--dark);
}

.btn-premium {
    position: relative;
    overflow: hidden;
    border: 0;
    color: #fff !important;
    border-radius: 14px;
    padding: 13px 24px;
    font-weight: 700;
    background: linear-gradient(
        120deg,
        var(--primary),
        var(--primary2),
        var(--accent)
    );
    background-size: 200% 200%;
    box-shadow: 0 12px 28px rgba(91, 33, 182, 0.28);
    animation: gradient 5s ease infinite;
    transition: 0.3s;
}

.btn-premium:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 38px rgba(91, 33, 182, 0.38);
}

.btn-outline-premium {
    border: 1.5px solid #c4b5fd;
    color: var(--primary);
    border-radius: 14px;
    padding: 12px 24px;
    font-weight: 700;
}

.btn-outline-premium:hover {
    background: #ede9fe;
    color: var(--primary);
}

@keyframes gradient {
    50% {
        background-position: 100% 50%;
    }
}

.hero {
    min-height: 820px;
    padding: 70px 0 95px;
    position: relative;
    isolation: isolate;
    background:
        radial-gradient(
            circle at 85% 25%,
            rgba(6, 182, 212, 0.16),
            transparent 25%
        ),
        radial-gradient(
            circle at 12% 70%,
            rgba(91, 33, 182, 0.13),
            transparent 28%
        ),
        linear-gradient(180deg, #fff, #f8fafc);
}

.hero:before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    opacity: 0.38;
    background-image:
        linear-gradient(rgba(91, 33, 182, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(91, 33, 182, 0.07) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, #000, transparent);
}

.offer {
    display: inline-flex;
    gap: 8px;
    padding: 9px 15px;
    border-radius: 50px;
    background: #fff7ed;
    color: #c2410c;
    font-weight: 700;
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.15);
}

.hero h1 {
    font-size: clamp(2.65rem, 5.5vw, 5.2rem);
    line-height: 1.02;
    font-weight: 700;
    letter-spacing: -0.035em;
    margin: 20px 0;
}

.benefits {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 24px 0;
}

.benefits span {
    font-weight: 600;
}

.benefits i {
    color: var(--accent);
    margin-right: 6px;
}

.price-old {
    text-decoration: line-through;
    color: #94a3b8;
    font-size: 1.25rem;
}

.price-new {
    font-size: 2.4rem;
    color: var(--primary);
    font-weight: 700;
    margin-left: 10px;
}

.camera-stage {
    position: relative;
    min-height: 520px;
    display: grid;
    place-items: center;
}

.camera-stage:before {
    content: "";
    position: absolute;
    width: 430px;
    height: 430px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    filter: blur(0);
    opacity: 0.95;
    box-shadow: 0 0 80px rgba(91, 33, 182, 0.22);
}

.camera-stage:after {
    content: "";
    position: absolute;
    width: 500px;
    height: 160px;
    background: rgba(15, 23, 42, 0.28);
    filter: blur(45px);
    border-radius: 50%;
    bottom: 30px;
    transform: scaleY(0.25);
}

.hero-camera {
    position: relative;
    z-index: 2;
    width: min(100%, 650px);
    filter: drop-shadow(0 32px 32px rgba(15, 23, 42, 0.35));
    animation: float 5s ease-in-out infinite;
}

@keyframes float {
    50% {
        transform: translateY(-14px);
    }
}

.mini-proof {
    position: absolute;
    z-index: 3;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.65);
    padding: 12px 17px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    font-weight: 700;
}

.proof-one {
    left: 0;
    top: 90px;
}

.proof-two {
    right: 0;
    bottom: 70px;
}

.proof-dot {
    width: 9px;
    height: 9px;
    background: #22c55e;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.12);
}

.stats {
    margin-top: -45px;
    position: relative;
    z-index: 3;
}

.stats-wrap {
    background: rgba(255, 255, 255, 0.87);
    backdrop-filter: blur(18px);
    border: 1px solid #fff;
    border-radius: 24px;
    box-shadow: var(--shadow);
    padding: 28px;
}

.stat {
    text-align: center;
    border-right: 1px solid #e2e8f0;
}

.stat:last-child {
    border: 0;
}

.stat strong {
    display: block;
    font-size: 2rem;
    color: var(--primary);
}

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

.feature-card {
    height: 100%;
    padding: 28px;
    border: 1px solid #edf0f5;
    border-radius: var(--radius);
    background: var(--card);
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.055);
    transition: 0.35s;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: #c4b5fd;
    box-shadow: var(--shadow);
}

.icon-box {
    width: 58px;
    height: 58px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    font-size: 1.55rem;
    color: var(--primary);
    background: linear-gradient(135deg, #ede9fe, #cffafe);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.22rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--muted);
    margin: 0;
}

.why-image {
    background: linear-gradient(145deg, #ede9fe, #cffafe);
    border-radius: 32px;
    height: 460px;
    padding: 42px 30px 24px;
    position: relative;
    overflow: hidden;
}

.why-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 24px 25px rgba(15, 23, 42, 0.25));
}

.check-item {
    display: flex;
    gap: 14px;
    padding: 16px;
    border-radius: 16px;
    transition: 0.25s;
}

.check-item:hover {
    background: #fff;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
}

.check-item i {
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #dcfce7;
    color: #16a34a;
}

.check-item strong {
    display: block;
}

.check-item small {
    color: var(--muted);
}

.spec-section {
    background: var(--dark);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.spec-section:before {
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: var(--primary);
    filter: blur(150px);
    opacity: 0.28;
    right: -150px;
    top: -180px;
}

.spec-card {
    position: relative;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.13);
    backdrop-filter: blur(18px);
    border-radius: 28px;
    padding: 18px;
}

.spec-card .table {
    --bs-table-bg: transparent;
    --bs-table-color: #e2e8f0;
    margin: 0;
}

.spec-card td {
    padding: 16px;
    border-color: rgba(255, 255, 255, 0.1);
}

.spec-card td:nth-child(odd) {
    color: #67e8f9;
    font-weight: 700;
}

.gallery-grid {
    columns: 3 260px;
    column-gap: 18px;
}

.gallery-item {
    display: block;
    position: relative;
    margin-bottom: 18px;
    border-radius: 20px;
    overflow: hidden;
    break-inside: avoid;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    display: block;
    transition: 0.6s;
}

.gallery-item:nth-child(2n) img {
    aspect-ratio: 1/1.18;
    object-fit: cover;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 2rem;
    background: linear-gradient(transparent, rgba(15, 23, 42, 0.55));
    opacity: 0;
    transition: 0.3s;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item:focus-visible .gallery-overlay {
    opacity: 1;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(2, 6, 23, 0.92);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.lightbox.show {
    display: flex;
}

.lightbox img {
    max-width: 92vw;
    max-height: 88vh;
    border-radius: 18px;
}

.lightbox button {
    position: absolute;
    right: 24px;
    top: 18px;
    border: 0;
    background: none;
    color: #fff;
    font-size: 2.5rem;
}

.review-card {
    height: 100%;
    background: #fff;
    border: 1px solid #edf0f5;
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.06);
    transition: 0.3s;
}

.review-card:hover {
    transform: translateY(-6px);
}

.stars {
    color: var(--gold);
    letter-spacing: 2px;
}

.customer {
    display: flex;
    align-items: center;
    gap: 13px;
}

.customer img {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 50%;
}

.verified {
    color: #16a34a;
    font-size: 0.82rem;
}

.pricing-wrap {
    background: linear-gradient(140deg, var(--dark), #24104f);
    border-radius: 34px;
    padding: 12px;
    box-shadow: 0 30px 80px rgba(91, 33, 182, 0.2);
}

.pricing-card {
    background: #fff;
    border-radius: 26px;
    padding: clamp(28px, 5vw, 55px);
    position: relative;
    overflow: hidden;
}

.discount {
    position: absolute;
    right: -48px;
    top: 28px;
    width: 180px;
    text-align: center;
    transform: rotate(38deg);
    background: var(--gold);
    color: #fff;
    font-weight: 700;
    padding: 8px;
}

.pricing-list {
    list-style: none;
    padding: 0;
}

.pricing-list li {
    margin: 13px 0;
}

.pricing-list i {
    color: #16a34a;
    margin-right: 8px;
}

.order-section {
    background: linear-gradient(145deg, #f3e8ff, #ecfeff);
}

.order-card {
    background: rgba(255, 255, 255, 0.87);
    backdrop-filter: blur(18px);
    border: 1px solid #fff;
    border-radius: 30px;
    padding: clamp(24px, 5vw, 48px);
    box-shadow: var(--shadow);
}

.form-label {
    font-weight: 700;
}

.form-control,
.form-select {
    border: 1px solid #dbe3ee;
    border-radius: 14px;
    padding: 14px 16px;
    background: #fff;
}

.form-control:focus,
.form-select:focus {
    border-color: #8b5cf6;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.12);
}

.quantity-stepper {
    display: grid;
    grid-template-columns: 52px minmax(80px, 1fr) 52px;
    overflow: hidden;
    border: 1px solid #dbe3ee;
    border-radius: 14px;
    background: #fff;
}

.quantity-stepper:focus-within {
    border-color: #8b5cf6;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.12);
}

.quantity-stepper button {
    border: 0;
    background: #eef2ff;
    color: var(--primary);
    font-size: 1.6rem;
    font-weight: 700;
    transition: 0.2s;
}

.quantity-stepper button:hover {
    background: #ddd6fe;
}

.quantity-stepper .form-control {
    border: 0;
    border-radius: 0;
    text-align: center;
    font-weight: 700;
    box-shadow: none;
    appearance: textfield;
}

.quantity-stepper .form-control::-webkit-inner-spin-button,
.quantity-stepper .form-control::-webkit-outer-spin-button {
    margin: 0;
    appearance: none;
}

.order-summary {
    background: var(--dark);
    color: #fff;
    border-radius: 24px;
    padding: 28px;
}

.summary-image {
    object-fit: contain;
    background: #fff;
    border-radius: 14px;
}

.accordion-item {
    border: 0 !important;
    border-radius: 16px !important;
    overflow: hidden;
    margin-bottom: 12px;
    box-shadow: 0 8px 25px rgba(15, 23, 42, 0.055);
}

.accordion-button {
    font-weight: 700;
    padding: 20px;
}

.accordion-button:not(.collapsed) {
    color: var(--primary);
    background: #f5f3ff;
    box-shadow: none;
}

.trust-item {
    text-align: center;
    padding: 24px 12px;
}

.trust-item i {
    font-size: 2rem;
    color: var(--primary);
}

.final-cta {
    background: linear-gradient(125deg, #3b0764, var(--primary), #0891b2);
    color: #fff;
    border-radius: 34px;
    padding: clamp(36px, 7vw, 75px);
    position: relative;
    overflow: hidden;
}

.final-cta:before {
    content: "";
    position: absolute;
    width: 250px;
    height: 250px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    right: -50px;
    top: -80px;
    box-shadow:
        0 0 0 50px rgba(255, 255, 255, 0.04),
        0 0 0 100px rgba(255, 255, 255, 0.03);
}

footer {
    background: #070b16;
    color: #94a3b8;
    padding: 70px 0 100px;
}

footer h5 {
    color: #fff;
}

footer a {
    color: #94a3b8;
}

footer a:hover {
    color: #67e8f9;
}

.social a {
    width: 40px;
    height: 40px;
    display: inline-grid;
    place-items: center;
    border-radius: 12px;
    background: #172033;
    color: #fff;
    margin-right: 6px;
}

.floating {
    position: fixed;
    right: 18px;
    z-index: 999;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 1.35rem;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.25);
}

.whatsapp {
    bottom: 88px;
    background: #22c55e;
}

.call {
    bottom: 150px;
    background: var(--accent);
}

.mobile-order {
    display: none;
    position: fixed;
    z-index: 1000;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    box-shadow: 0 -8px 30px rgba(15, 23, 42, 0.12);
}

.js .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 0.75s ease,
        transform 0.75s ease;
}

.js .reveal.visible {
    opacity: 1;
    transform: none;
}

:focus-visible {
    outline: 3px solid #0ea5e9;
    outline-offset: 3px;
}

.lightbox-open {
    overflow: hidden;
}

.toast-order {
    position: fixed;
    z-index: 3000;
    left: 50%;
    bottom: 30px;
    transform: translate(-50%, 120px);
    background: #052e16;
    color: #fff;
    padding: 14px 22px;
    border-radius: 14px;
    transition: 0.4s;
    box-shadow: var(--shadow);
}

.toast-order.show {
    transform: translate(-50%, 0);
}

.toast-order.error {
    background: #7f1d1d;
}

@media (max-width: 991px) {
    .hero {
        padding-top: 55px;
    }

    .camera-stage {
        min-height: 420px;
    }

    .camera-stage:before {
        width: 330px;
        height: 330px;
    }

    .proof-one {
        left: 10px;
    }

    .proof-two {
        right: 10px;
    }

    .stat:nth-child(2) {
        border: 0;
    }

    .section-pad {
        padding: 68px 0;
    }
}

@media (max-width: 767px) {
    body {
        padding-bottom: 68px;
    }

    .hero {
        text-align: center;
        padding-bottom: 80px;
    }

    .benefits {
        text-align: left;
    }

      .hero h1 {
        max-width: 100%;
        font-size: clamp(1.75rem, 8vw, 2.1rem);
        line-height: 1.1;
        overflow-wrap: anywhere;
        word-break: break-word;
      }

      .hero h1 .text-gradient {
        overflow-wrap: anywhere;
        word-break: break-word;
      }

      .why-image {
        height: 340px;
        padding: 48px 18px 16px;
      }

    .hero .section-copy {
        font-size: 1rem;
        overflow-wrap: anywhere;
    }

    .benefits {
        grid-template-columns: 1fr;
        width: min(100%, 320px);
        margin-inline: auto;
    }

    .hero-actions {
        flex-direction: column;
        justify-content: center;
    }

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

    .camera-stage {
        min-height: 340px;
    }

    .camera-stage:before {
        width: 270px;
        height: 270px;
    }

    .mini-proof {
        font-size: 0.78rem;
        padding: 9px 12px;
    }

    .proof-one {
        top: 30px;
    }

    .proof-two {
        bottom: 35px;
    }

    .stats {
        margin-top: -25px;
    }

    .stat {
        border: 0;
        border-bottom: 1px solid #e2e8f0;
        padding: 12px;
    }

    .stat:last-child {
        border: 0;
    }

    .mobile-order {
        display: block;
    }

    .floating {
        right: 14px;
    }

    .whatsapp {
        bottom: 82px;
    }

    .call {
        bottom: 142px;
    }

    .section-title {
        font-size: 2.1rem;
    }

    .gallery-grid {
        columns: 2;
    }

    .final-cta {
        text-align: center;
    }

    footer {
        padding-bottom: 110px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        scroll-behavior: auto !important;
        animation: none !important;
        transition: none !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}
/* স্বতন্ত্র প্রিমিয়াম রঙের স্তর */
.eyebrow {
    background: #eef2ff;
    border: 1px solid #dfe3ff;
    color: #3730a3;
}
.text-gradient {
    background: linear-gradient(115deg, #3730a3 5%, #635bff 48%, #0284c7 95%);
    -webkit-background-clip: text;
    color: transparent;
}
.navbar {
    background: rgba(255, 255, 255, 0.86);
    border-bottom-color: rgba(99, 91, 255, 0.1);
}
.brand-mark {
    background: linear-gradient(145deg, #29235c, #635bff 58%, #0ea5e9);
    box-shadow: 0 8px 22px rgba(67, 56, 202, 0.28);
}
.hero {
    background:
        radial-gradient(
            circle at 86% 22%,
            rgba(14, 165, 233, 0.15),
            transparent 26%
        ),
        radial-gradient(
            circle at 10% 72%,
            rgba(99, 91, 255, 0.12),
            transparent 30%
        ),
        linear-gradient(155deg, #fff 12%, #f5f7ff 58%, #f3f8fc);
}
.camera-stage:before {
    background: radial-gradient(
        circle at 32% 28%,
        #8178ff,
        #3d35a8 48%,
        #082f49 100%
    );
    opacity: 0.98;
    box-shadow: 0 0 90px rgba(67, 56, 202, 0.24);
}
.spec-section {
    background: linear-gradient(145deg, #090d1a, #101833 58%, #0b2234);
}
.pricing-wrap {
    background: linear-gradient(140deg, #090d1a, #252063 60%, #0b506e);
    box-shadow: 0 30px 80px rgba(67, 56, 202, 0.2);
}
.order-section {
    background: linear-gradient(145deg, #eef1ff, #edf8fc);
}
.final-cta {
    background: linear-gradient(125deg, #11163b, #4338ca 48%, #086b8f);
    box-shadow: 0 28px 70px rgba(38, 46, 120, 0.28);
}