:root {
    --ink: #102c3a;
    --ink-deep: #0a202c;
    --ink-soft: #244451;
    --orange: #ee8247;
    --orange-dark: #d96c32;
    --paper: #f7f7f4;
    --white: #fff;
    --body: #40515a;
    --muted: #78868c;
    --line: #e8ecea;
    --radius: 20px;
    --shadow: 0 20px 55px rgba(16, 44, 58, .10);
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    margin: 0;
    color: var(--body);
    background: var(--white);
    font-family: "Vazirmatn", Tahoma, sans-serif;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
}

img {
    display: block;
    max-width: 100%;
}

a { text-decoration: none; }

::selection {
    color: var(--white);
    background: var(--orange);
}

.skip-link {
    position: fixed;
    z-index: 10000;
    top: 10px;
    right: 10px;
    padding: 10px 16px;
    transform: translateY(-150%);
    color: white;
    background: var(--ink);
    border-radius: 8px;
}

.skip-link:focus { transform: translateY(0); }

/* Header */
.site-header {
    position: sticky;
    z-index: 1000;
    top: 0;
    background: rgba(255, 255, 255, .94);
    border-bottom: 1px solid rgba(16, 44, 58, .07);
    backdrop-filter: blur(16px);
}

.site-header .navbar {
    min-height: 82px;
    padding: 10px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    color: var(--ink);
}

.brand:hover { color: var(--ink); }

.brand-symbol {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    color: white;
    background: var(--orange);
    border-radius: 14px 14px 14px 5px;
    font-size: 21px;
}

.brand-text {
    display: grid;
    line-height: 1.35;
}

.brand-text strong {
    color: var(--ink);
    font-size: 18px;
    font-weight: 900;
}

.brand-text small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 500;
}

.navbar-nav { gap: 8px; }

.site-header .nav-link {
    padding: 10px 12px !important;
    color: #4c5b62;
    font-size: 13px;
    font-weight: 600;
    transition: color .2s ease;
}

.site-header .nav-link:hover,
.site-header .nav-link:focus {
    color: var(--orange-dark);
}

.header-cta {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 17px;
    color: white;
    background: var(--ink);
    border-radius: 11px;
    font-size: 12px;
    font-weight: 700;
    transition: background .2s ease, transform .2s ease;
}

.header-cta:hover {
    color: white;
    background: var(--orange-dark);
    transform: translateY(-2px);
}

.navbar-toggler {
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: none !important;
}

/* Hero */
.hero-section {
    position: relative;
    overflow: hidden;
    min-height: 630px;
    padding: 74px 0 104px;
    color: white;
    background:
        radial-gradient(ellipse at 12% 20%, rgba(238, 130, 71, .16), transparent 34%),
        linear-gradient(125deg, #0a202c 0%, #102c3a 54%, #183c49 100%);
}

.hero-container { position: relative; z-index: 1; }

.hero-orb {
    position: absolute;
    pointer-events: none;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 50%;
}

.hero-orb--one {
    width: 480px;
    height: 480px;
    top: -230px;
    left: -95px;
}

.hero-orb--two {
    width: 300px;
    height: 300px;
    right: 28%;
    bottom: -210px;
}

.hero-content { position: relative; z-index: 2; }

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 15px;
    color: var(--orange-dark);
    font-size: 12px;
    font-weight: 800;
}

.eyebrow--light { color: #ffc09a; }

.eyebrow-dot {
    width: 8px;
    height: 8px;
    display: inline-block;
    background: var(--orange);
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(238, 130, 71, .13);
}

.hero-content h1 {
    margin: 0;
    color: white;
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 900;
    line-height: 1.36;
    letter-spacing: -1.5px;
}

.text-highlight {
    color: #f49a65;
    position: relative;
}

.hero-description {
    max-width: 555px;
    margin: 20px 0 27px;
    color: #c5d2d7;
    font-size: 15px;
    line-height: 2.1;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 0;
    border-radius: 11px;
    font-size: 13px;
    font-weight: 800;
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn-accent {
    color: white;
    background: var(--orange);
    box-shadow: 0 10px 25px rgba(238, 130, 71, .22);
}

.btn-accent:hover {
    color: white;
    background: var(--orange-dark);
    box-shadow: 0 13px 28px rgba(238, 130, 71, .30);
}

.btn-lg {
    min-height: 52px;
    padding: 0 21px;
}

.btn-hero-outline {
    color: white;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, .30);
}

.btn-hero-outline:hover {
    color: var(--ink);
    background: white;
}

.hero-note {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 23px;
    color: #aebec5;
    font-size: 11px;
}

.hero-note i { color: #f49a65; }

.hero-visual {
    position: relative;
    max-width: 510px;
    margin: 0 auto;
    padding: 13px;
}

.hero-image-wrap {
    position: relative;
    min-height: 410px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .24);
    border-radius: 34px 34px 34px 8px;
    box-shadow: 0 30px 70px rgba(0, 0, 0, .30);
    transform: rotate(-2deg);
}

.hero-image {
    position: absolute;
    width: 100%;
    height: 100%;
    inset: 0;
    object-fit: cover;
}

.hero-image-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(5, 21, 29, .72), transparent 60%);
}

.hero-image-caption {
    position: absolute;
    right: 20px;
    bottom: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: white;
    transform: rotate(2deg);
}

.caption-icon {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    color: white;
    background: var(--orange);
    border-radius: 14px;
    font-size: 20px;
}

.hero-image-caption strong,
.hero-image-caption small { display: block; }

.hero-image-caption strong { font-size: 13px; }
.hero-image-caption small { margin-top: 2px; color: #d0d9dc; font-size: 10px; }

.hero-stamp {
    position: absolute;
    top: 44px;
    left: -10px;
    width: 86px;
    height: 86px;
    display: grid;
    align-content: center;
    justify-items: center;
    color: var(--ink);
    background: #fff;
    border: 5px solid rgba(255, 255, 255, .45);
    border-radius: 50%;
    outline: 1px solid rgba(255, 255, 255, .25);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .15);
    line-height: 1.35;
    transform: rotate(-8deg);
}

.hero-stamp span { font-size: 11px; }
.hero-stamp strong { font-size: 16px; font-weight: 900; }
.hero-stamp i { color: var(--orange); font-size: 12px; }

.hero-bottom-line {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 5px;
    background: linear-gradient(90deg, transparent, var(--orange), transparent);
    opacity: .8;
}

/* Highlights */
.highlights-section {
    position: relative;
    z-index: 2;
    margin-top: -43px;
}

.highlights-panel {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    overflow: hidden;
    padding: 10px;
    background: white;
    border: 1px solid rgba(16, 44, 58, .05);
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 18px 21px;
}

.highlight-item + .highlight-item {
    border-right: 1px solid var(--line);
}

.highlight-icon {
    flex: 0 0 45px;
    width: 45px;
    height: 45px;
    display: grid;
    place-items: center;
    color: var(--orange-dark);
    background: #fff2e9;
    border-radius: 14px;
    font-size: 19px;
}

.highlight-item h2 {
    margin: 0;
    color: var(--ink);
    font-size: 13px;
    font-weight: 800;
}

.highlight-item p {
    margin: 3px 0 0;
    color: var(--muted);
    font-size: 10px;
}

/* Shared sections */
.section { padding: 100px 0; }

.section-heading {
    max-width: 670px;
    margin: 0 auto 42px;
    text-align: center;
}

.section-heading h2 {
    margin: 0 0 12px;
    color: var(--ink);
    font-size: clamp(27px, 3.4vw, 39px);
    font-weight: 900;
    line-height: 1.5;
}

.section-heading p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.section-heading--light h2 { color: white; }
.section-heading--light p { color: #b7c5ca; }

/* Products */
.products-section { background: var(--paper); }

.product-card {
    height: 100%;
    overflow: hidden;
    background: white;
    border: 1px solid rgba(16, 44, 58, .06);
    border-radius: var(--radius);
    transition: transform .25s ease, box-shadow .25s ease;
}

.product-card:hover {
    transform: translateY(-7px);
    box-shadow: var(--shadow);
}

.product-image-link { display: block; }

.product-image {
    position: relative;
    height: 225px;
    overflow: hidden;
    background: #d9e0e1;
}

.product-image::after {
    position: absolute;
    content: "";
    inset: 35% 0 0;
    background: linear-gradient(0deg, rgba(8, 30, 41, .35), transparent);
    pointer-events: none;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

.product-card:hover .product-image img { transform: scale(1.06); }

.product-label {
    position: absolute;
    z-index: 1;
    top: 15px;
    right: 15px;
    padding: 5px 12px;
    color: var(--ink);
    background: white;
    border-radius: 30px;
    font-size: 10px;
    font-weight: 800;
}

.product-card-body { padding: 22px 22px 24px; }

.product-card-topline {
    margin-bottom: 7px;
    color: var(--orange-dark);
    font-size: 10px;
    font-weight: 800;
}

.product-card h3 {
    margin: 0 0 9px;
    color: var(--ink);
    font-size: 18px;
    font-weight: 900;
}

.product-card h3 a { color: inherit; }
.product-card h3 a:hover { color: var(--orange-dark); }

.product-card p {
    min-height: 66px;
    margin: 0 0 17px;
    color: var(--muted);
    font-size: 12px;
    line-height: 2;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--orange-dark);
    font-size: 12px;
    font-weight: 800;
}

.card-link i { transition: transform .2s ease; }
.card-link:hover { color: var(--ink); }
.card-link:hover i { transform: translateX(-4px); }

.products-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 14px;
    margin-top: 32px;
    color: var(--muted);
    font-size: 12px;
}

.products-bottom a {
    color: var(--ink);
    font-weight: 800;
}

.products-bottom a:hover { color: var(--orange-dark); }

/* About */
.about-section { overflow: hidden; }

.about-visual {
    position: relative;
    max-width: 525px;
    padding: 0 18px 20px 0;
}

.about-main-image {
    position: relative;
    z-index: 1;
    height: 415px;
    overflow: hidden;
    border-radius: 25px 25px 25px 7px;
    background: #dfe3e0;
}

.about-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-decoration {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 58%;
    height: 54%;
    border: 2px solid var(--orange);
    border-radius: 0 0 21px 0;
}

.about-label {
    position: absolute;
    z-index: 2;
    right: 0;
    bottom: 44px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 13px 17px;
    color: white;
    background: var(--ink);
    border-radius: 11px 0 0 11px;
    font-size: 11px;
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(16, 44, 58, .2);
}

.about-label i { color: #ffad7b; font-size: 18px; }

.about-content h2 {
    margin: 0 0 15px;
    color: var(--ink);
    font-size: clamp(30px, 3.5vw, 42px);
    font-weight: 900;
    line-height: 1.45;
}

.about-content h2 span { color: var(--orange-dark); }

.about-content > p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 2.1;
}

.about-list {
    display: grid;
    gap: 12px;
    margin: 24px 0 28px;
    padding: 0;
    list-style: none;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #485860;
    font-size: 12px;
}

.about-list i {
    width: 23px;
    height: 23px;
    display: grid;
    place-items: center;
    color: white;
    background: var(--orange);
    border-radius: 50%;
    font-size: 13px;
    font-weight: 900;
}

.btn-dark-custom {
    min-height: 48px;
    padding: 0 18px;
    color: white;
    background: var(--ink);
}

.btn-dark-custom:hover {
    color: white;
    background: var(--orange-dark);
}

/* Process */
.process-section {
    position: relative;
    overflow: hidden;
    color: white;
    background:
        radial-gradient(circle at 90% 0%, rgba(238, 130, 71, .12), transparent 28%),
        var(--ink);
}

.process-section::before {
    position: absolute;
    content: "";
    width: 430px;
    height: 430px;
    right: -250px;
    bottom: -280px;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 50%;
}

.process-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.process-step {
    position: relative;
    min-height: 205px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, .13);
    border-radius: 17px;
    background: rgba(255, 255, 255, .045);
    transition: background .25s ease, transform .25s ease;
}

.process-step:hover {
    background: rgba(255, 255, 255, .08);
    transform: translateY(-5px);
}

.step-number {
    position: absolute;
    top: 18px;
    left: 20px;
    color: #f7a16e;
    font-size: 12px;
    font-weight: 900;
}

.step-icon {
    width: 43px;
    height: 43px;
    display: grid;
    place-items: center;
    color: white;
    background: rgba(238, 130, 71, .17);
    border-radius: 13px;
    font-size: 18px;
}

.process-step h3 {
    margin: 16px 0 7px;
    color: white;
    font-size: 16px;
    font-weight: 800;
}

.process-step p {
    margin: 0;
    color: #b7c5ca;
    font-size: 11px;
    line-height: 1.9;
}

/* Contact */
.contact-section {
    background:
        radial-gradient(circle at 4% 82%, rgba(238, 130, 71, .11), transparent 27%),
        var(--paper);
}

.contact-box {
    display: grid;
    grid-template-columns: .82fr 1.18fr;
    gap: 55px;
    padding: clamp(24px, 5vw, 52px);
    background: white;
    border: 1px solid rgba(16, 44, 58, .05);
    border-radius: 25px;
    box-shadow: var(--shadow);
}

.contact-copy h2 {
    margin: 0 0 13px;
    color: var(--ink);
    font-size: clamp(27px, 3.3vw, 37px);
    font-weight: 900;
    line-height: 1.5;
}

.contact-copy > p {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
    line-height: 2.1;
}

.contact-points {
    display: grid;
    gap: 11px;
    margin-top: 23px;
}

.contact-points div {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-size: 12px;
    font-weight: 700;
}

.contact-points i {
    width: 31px;
    height: 31px;
    display: grid;
    place-items: center;
    color: var(--orange-dark);
    background: #fff2e9;
    border-radius: 10px;
}

.contact-form {
    padding: 23px;
    background: #fbfbf9;
    border: 1px solid var(--line);
    border-radius: 17px;
}

.contact-form .form-label {
    margin-bottom: 6px;
    color: #43535a;
    font-size: 11px;
    font-weight: 700;
}

.contact-form .form-control,
.contact-form .form-select {
    min-height: 46px;
    color: var(--ink);
    background-color: white;
    border: 1px solid #e4e8e6;
    border-radius: 9px;
    font-family: inherit;
    font-size: 12px;
}

.contact-form textarea.form-control { min-height: 95px; }

.contact-form .form-control::placeholder { color: #a1abad; }

.contact-form .form-control:focus,
.contact-form .form-select:focus {
    border-color: var(--orange);
    box-shadow: 0 0 0 3px rgba(238, 130, 71, .12);
}

.contact-form .btn {
    min-height: 45px;
    padding: 0 18px;
}

.form-status {
    color: var(--orange-dark);
    font-size: 11px;
    font-weight: 700;
}

/* Footer */
.site-footer {
    padding: 55px 0 18px;
    color: #c4d0d4;
    background: var(--ink-deep);
}

.brand--footer .brand-text strong { color: white; }
.brand--footer .brand-text small { color: #aebdc2; }

.footer-description {
    max-width: 390px;
    margin: 17px 0 0;
    color: #9eafb5;
    font-size: 11px;
    line-height: 2;
}

.footer-title {
    margin: 4px 0 15px;
    color: white;
    font-size: 13px;
    font-weight: 800;
}

.footer-links {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-links a {
    color: #aebdc2;
    font-size: 11px;
    transition: color .2s ease;
}

.footer-links a:hover { color: #ffa16d; }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 34px;
    padding-top: 17px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    color: #879aa1;
    font-size: 10px;
}

.footer-bottom a {
    color: #b7c5ca;
}

.footer-bottom a:hover { color: white; }

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .7s ease, transform .7s cubic-bezier(.2, .75, .25, 1);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: .12s; }
.reveal-delay-2 { transition-delay: .22s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(-2deg); }
    50% { transform: translateY(-9px) rotate(-1deg); }
}

.hero-image-wrap { animation: float 7s ease-in-out infinite; }

/* Responsive */
@media (max-width: 991.98px) {
    .site-header .navbar-collapse {
        padding: 12px 0 6px;
    }

    .site-header .nav-link { padding-right: 0 !important; }

    .header-cta {
        display: inline-flex;
        margin: 6px 0 12px;
    }

    .hero-section { padding-top: 60px; }
    .hero-visual { max-width: 440px; }
    .hero-image-wrap { min-height: 360px; }
    .contact-box { gap: 32px; }
}

@media (max-width: 767.98px) {
    .section { padding: 72px 0; }
    .hero-section { padding: 58px 0 82px; }
    .hero-content h1 { font-size: clamp(39px, 10vw, 55px); }
    .hero-visual { margin-top: 12px; }
    .hero-image-wrap { min-height: 330px; }
    .hero-stamp { left: 0; }
    .highlights-panel { grid-template-columns: 1fr; }
    .highlight-item + .highlight-item {
        border-right: 0;
        border-top: 1px solid var(--line);
    }
    .highlight-item { padding: 14px 16px; }
    .product-image { height: 235px; }
    .about-visual { max-width: 100%; }
    .about-main-image { height: 340px; }
    .process-grid { grid-template-columns: 1fr; }
    .process-step { min-height: auto; }
    .contact-box { grid-template-columns: 1fr; }
    .contact-form { padding: 18px; }
}

@media (max-width: 575.98px) {
    .site-header .navbar { min-height: 70px; }
    .brand-symbol { width: 40px; height: 40px; }
    .brand-text strong { font-size: 16px; }
    .hero-section { padding-top: 47px; }
    .hero-description { font-size: 13px; }
    .hero-actions { display: grid; }
    .hero-actions .btn { width: 100%; }
    .hero-image-wrap { min-height: 285px; border-radius: 25px 25px 25px 7px; }
    .hero-note { align-items: flex-start; line-height: 1.8; }
    .products-bottom { text-align: center; }
    .about-main-image { height: 280px; }
    .about-label { bottom: 35px; }
    .footer-bottom { flex-direction: column; }
    .contact-box { padding: 22px 17px; }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }

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

/* Quick product guide */
.quick-guide-section {
    padding: 58px 0 45px;
    background: #fff;
}

.quick-guide-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 23px;
}

.quick-guide-heading h2 {
    margin: 0 0 7px;
    color: var(--ink);
    font-size: clamp(23px, 3vw, 31px);
    font-weight: 900;
}

.quick-guide-heading p {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
}

.quick-guide-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
    padding: 9px 13px;
    color: var(--orange-dark);
    background: #fff2e9;
    border-radius: 30px;
    font-size: 11px;
    font-weight: 800;
}

.guide-card {
    height: 100%;
    min-height: 108px;
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 18px;
    color: var(--body);
    background: var(--paper);
    border: 1px solid #ecefeb;
    border-radius: 15px;
    transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.guide-card:hover {
    color: var(--body);
    border-color: rgba(238, 130, 71, .45);
    box-shadow: 0 13px 30px rgba(16, 44, 58, .08);
    transform: translateY(-4px);
}

.guide-card-icon {
    flex: 0 0 43px;
    width: 43px;
    height: 43px;
    display: grid;
    place-items: center;
    color: var(--orange-dark);
    background: white;
    border-radius: 12px;
    font-size: 19px;
}

.guide-card-content {
    display: grid;
    gap: 4px;
    flex: 1;
}

.guide-card-content strong {
    color: var(--ink);
    font-size: 13px;
    font-weight: 900;
}

.guide-card-content small {
    color: var(--muted);
    font-size: 10px;
    line-height: 1.8;
}

.guide-card-arrow {
    color: var(--orange-dark);
    font-size: 17px;
    transition: transform .2s ease;
}

.guide-card:hover .guide-card-arrow {
    transform: translateX(-4px);
}

.quick-guide-note {
    margin: 15px 0 0;
    color: var(--muted);
    font-size: 10px;
}

/* FAQ */
.faq-section {
    background: white;
}

.faq-intro h2 {
    margin: 0 0 13px;
    color: var(--ink);
    font-size: clamp(29px, 3.5vw, 40px);
    font-weight: 900;
    line-height: 1.5;
}

.faq-intro > p {
    margin: 0 0 22px;
    color: var(--muted);
    font-size: 12px;
    line-height: 2.1;
}

.faq-accordion {
    --bs-accordion-bg: #fbfbf9;
    --bs-accordion-border-color: #e9ece9;
    --bs-accordion-btn-color: var(--ink);
    --bs-accordion-active-color: var(--ink);
    --bs-accordion-active-bg: #fff5ee;
    --bs-accordion-btn-focus-box-shadow: 0 0 0 3px rgba(238, 130, 71, .12);
    border-radius: 15px;
    overflow: hidden;
}

.faq-accordion .accordion-item {
    border-right: 0;
    border-left: 0;
}

.faq-accordion .accordion-item:first-child { border-top: 0; }
.faq-accordion .accordion-item:last-child { border-bottom: 0; }

.faq-accordion .accordion-button {
    gap: 10px;
    padding: 18px 20px;
    font-family: inherit;
    font-size: 12px;
    font-weight: 800;
}

.faq-accordion .accordion-button::after {
    margin-right: auto;
    margin-left: 0;
}

.faq-accordion .accordion-body {
    padding: 0 20px 18px;
    color: var(--muted);
    font-size: 11px;
    line-height: 2;
}

@media (max-width: 767.98px) {
    .quick-guide-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .quick-guide-badge { align-self: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
    .guide-card,
    .guide-card-arrow {
        transition: none;
    }
}

    /* استایل‌های افزوده‌شده برای بخش‌های تعاملی و نمایشی صفحه */
    .sf-insulation-showcase {
        position: relative;
        overflow: hidden;
        background:
            radial-gradient(circle at 10% 10%, rgba(235, 166, 62, .12), transparent 30%),
            linear-gradient(145deg, #f8f7f2, #eef1ed);
    }

    .sf-insulation-showcase::before {
        position: absolute;
        inset: 0;
        background-image: linear-gradient(rgba(20, 38, 35, .025) 1px, transparent 1px),
                          linear-gradient(90deg, rgba(20, 38, 35, .025) 1px, transparent 1px);
        background-size: 34px 34px;
        content: "";
        pointer-events: none;
    }

    .sf-showcase-heading,
    .sf-showcase-layout,
    .sf-insulation-points {
        position: relative;
        z-index: 1;
    }

    .sf-showcase-layout {
        display: grid;
        grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr);
        gap: 28px;
        align-items: center;
        margin-top: 42px;
    }

    .sf-thermal-card {
        position: relative;
        overflow: hidden;
        min-height: 390px;
        border: 1px solid rgba(24, 45, 40, .1);
        border-radius: 28px;
        background: #e8ece8;
        box-shadow: 0 24px 70px rgba(22, 41, 36, .13);
        isolation: isolate;
    }

    .sf-thermal-scene {
        position: absolute;
        inset: 0;
        overflow: hidden;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .sf-thermal-scene--before {
        background:
            radial-gradient(ellipse at 75% 20%, rgba(255, 187, 95, .48), transparent 35%),
            linear-gradient(135deg, #f4d9b8 0%, #e9d6c5 48%, #d8e2de 100%);
    }

    .sf-thermal-scene--after {
        background:
            radial-gradient(ellipse at 18% 18%, rgba(121, 203, 198, .3), transparent 36%),
            linear-gradient(135deg, #d4e5e2 0%, #e7ece5 55%, #dce7e5 100%);
    }

    .sf-thermal-scene--overlay {
        z-index: 3;
        clip-path: inset(0 50% 0 0);
        transition: clip-path .12s linear;
    }

    .sf-scene-sun {
        position: absolute;
        top: 32px;
        right: 42px;
        width: 62px;
        height: 62px;
        border-radius: 50%;
        background: #f5b85c;
        box-shadow: 0 0 0 12px rgba(245, 184, 92, .15), 0 0 50px rgba(245, 160, 68, .4);
        animation: sf-sun-pulse 3.5s ease-in-out infinite;
    }

    .sf-scene-cloud {
        position: absolute;
        top: 72px;
        left: 48px;
        width: 88px;
        height: 26px;
        border-radius: 30px;
        background: rgba(255, 255, 255, .6);
        filter: blur(1px);
    }

    .sf-scene-cloud::before,
    .sf-scene-cloud::after {
        position: absolute;
        bottom: 5px;
        border-radius: 50%;
        background: inherit;
        content: "";
    }

    .sf-scene-cloud::before {
        left: 16px;
        width: 38px;
        height: 38px;
    }

    .sf-scene-cloud::after {
        left: 42px;
        width: 30px;
        height: 30px;
    }

    .sf-scene-ground {
        position: absolute;
        right: 0;
        bottom: 0;
        left: 0;
        height: 24%;
        background: linear-gradient(180deg, #b8c5b7, #8d9f91);
    }

    .sf-scene-house {
        position: relative;
        z-index: 2;
        width: min(66%, 360px);
        height: 205px;
        margin-top: 54px;
    }

    .sf-house-roof {
        position: absolute;
        top: 0;
        right: 0;
        left: 0;
        height: 96px;
        background: #365049;
        clip-path: polygon(50% 0, 100% 72%, 94% 83%, 50% 22%, 6% 83%, 0 72%);
        filter: drop-shadow(0 8px 8px rgba(20, 35, 31, .14));
    }

    .sf-house-body {
        position: absolute;
        top: 66px;
        right: 8%;
        bottom: 0;
        left: 8%;
        overflow: hidden;
        border: 5px solid #425b53;
        border-bottom-width: 8px;
        background: rgba(255, 250, 237, .94);
        box-shadow: 0 16px 30px rgba(37, 53, 47, .17);
    }

    .sf-house-room {
        position: absolute;
        inset: 0;
        background:
            linear-gradient(90deg, transparent 49%, rgba(66, 91, 83, .18) 50%, transparent 51%),
            linear-gradient(0deg, transparent 74%, rgba(66, 91, 83, .13) 75%, transparent 76%);
    }

    .sf-house-window {
        position: absolute;
        top: 23px;
        left: 16%;
        width: 52px;
        height: 55px;
        border: 5px solid #628077;
        background: linear-gradient(135deg, #b8dbd7, #eaf1df);
        box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .5);
    }

    .sf-house-window::before,
    .sf-house-window::after {
        position: absolute;
        background: rgba(71, 111, 101, .65);
        content: "";
    }

    .sf-house-window::before {
        top: 0;
        bottom: 0;
        left: 50%;
        width: 2px;
    }

    .sf-house-window::after {
        top: 50%;
        right: 0;
        left: 0;
        height: 2px;
    }

    .sf-house-door {
        position: absolute;
        right: 16%;
        bottom: 0;
        width: 46px;
        height: 84px;
        border: 4px solid #536c62;
        border-bottom: 0;
        border-radius: 5px 5px 0 0;
        background: #ab8b69;
    }

    .sf-house-door::after {
        position: absolute;
        top: 43px;
        right: 7px;
        width: 5px;
        height: 5px;
        border-radius: 50%;
        background: #f1d49c;
        content: "";
    }

    .sf-heat-wave {
        position: absolute;
        z-index: 4;
        width: 16px;
        height: 74px;
        border-right: 3px solid rgba(230, 103, 57, .82);
        border-radius: 50%;
        filter: drop-shadow(0 0 7px rgba(238, 117, 62, .48));
        animation: sf-heat-drift 2s ease-in-out infinite;
    }

    .sf-heat-wave--one {
        top: 34%;
        right: 19%;
    }

    .sf-heat-wave--two {
        top: 45%;
        right: 12%;
        height: 54px;
        animation-delay: .45s;
    }

    .sf-heat-wave--three {
        top: 31%;
        left: 17%;
        height: 58px;
        animation-delay: .8s;
    }

    .sf-thermal-scene--after .sf-heat-wave {
        opacity: .24;
        border-color: rgba(72, 137, 127, .68);
        filter: drop-shadow(0 0 7px rgba(72, 137, 127, .35));
    }

    .sf-insulation-layer {
        position: absolute;
        z-index: 5;
        top: 47%;
        right: 21%;
        width: 7px;
        height: 86px;
        border-radius: 9px;
        background: repeating-linear-gradient(180deg, #e8a94f 0 8px, #f3d492 8px 15px);
        box-shadow: 0 0 0 4px rgba(232, 169, 79, .2), 0 0 20px rgba(232, 169, 79, .6);
    }

    .sf-scene-tag {
        position: absolute;
        z-index: 6;
        top: 18px;
        right: 18px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 9px 13px;
        border: 1px solid rgba(255, 255, 255, .55);
        border-radius: 30px;
        background: rgba(255, 255, 255, .76);
        color: #283b35;
        font-size: .82rem;
        font-weight: 700;
        backdrop-filter: blur(12px);
    }

    .sf-scene-tag i {
        color: #dc8540;
    }

    .sf-scene-tag--after i {
        color: #348b7e;
    }

    .sf-scene-caption {
        position: absolute;
        z-index: 6;
        right: 22px;
        bottom: 18px;
        left: 22px;
        display: flex;
        justify-content: space-between;
        gap: 12px;
        color: #263a34;
        font-size: .83rem;
        font-weight: 700;
        text-shadow: 0 1px 8px rgba(255, 255, 255, .7);
    }

    .sf-scene-caption span:last-child {
        text-align: left;
    }

    .sf-compare-divider {
        position: absolute;
        z-index: 8;
        top: 0;
        bottom: 0;
        left: 50%;
        width: 3px;
        background: #fff;
        box-shadow: 0 0 0 1px rgba(27, 47, 40, .12), 0 0 18px rgba(24, 43, 36, .25);
        pointer-events: none;
        transform: translateX(-50%);
        transition: left .12s linear;
    }

    .sf-compare-handle {
        position: absolute;
        top: 50%;
        left: 50%;
        display: grid;
        width: 48px;
        height: 48px;
        place-items: center;
        border: 3px solid #fff;
        border-radius: 50%;
        background: #213d35;
        color: #fff;
        box-shadow: 0 8px 25px rgba(15, 39, 31, .25);
        transform: translate(-50%, -50%);
    }

    .sf-compare-range {
        position: absolute;
        z-index: 10;
        inset: 0;
        width: 100%;
        height: 100%;
        margin: 0;
        opacity: 0;
        cursor: ew-resize;
        direction: ltr;
    }

    .sf-compare-range:focus-visible {
        opacity: 1;
        outline: 3px solid #dda64f;
        outline-offset: -5px;
    }

    .sf-compare-range:focus-visible::-webkit-slider-thumb {
        opacity: .01;
    }

    .sf-compare-range:focus-visible::-moz-range-thumb {
        opacity: .01;
    }

    .sf-compare-controls {
        display: flex;
        justify-content: space-between;
        gap: 14px;
        margin-top: 13px;
        color: #53665f;
        font-size: .9rem;
    }

    .sf-compare-controls strong {
        color: #263b34;
    }

    .sf-showcase-copy {
        padding: 12px 4px;
    }

    .sf-showcase-copy h3 {
        margin: 0 0 16px;
        color: #1c332d;
        font-size: clamp(1.55rem, 3vw, 2.2rem);
        line-height: 1.55;
    }

    .sf-showcase-copy p {
        color: #5e6d67;
        line-height: 2;
    }

    .sf-showcase-note {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        margin-top: 20px;
        padding: 15px 17px;
        border: 1px solid rgba(51, 118, 104, .14);
        border-radius: 16px;
        background: rgba(255, 255, 255, .7);
        color: #53665f;
        font-size: .9rem;
        line-height: 1.9;
    }

    .sf-showcase-note i {
        margin-top: 4px;
        color: #398579;
        font-size: 1.1rem;
    }

    .sf-insulation-points {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
        margin-top: 30px;
    }

    .sf-insulation-point {
        padding: 18px;
        border: 1px solid rgba(31, 55, 47, .09);
        border-radius: 18px;
        background: rgba(255, 255, 255, .72);
        transition: transform .25s ease, box-shadow .25s ease;
    }

    .sf-insulation-point:hover {
        transform: translateY(-5px);
        box-shadow: 0 14px 34px rgba(29, 55, 45, .1);
    }

    .sf-insulation-point i {
        display: inline-grid;
        width: 42px;
        height: 42px;
        margin-bottom: 11px;
        place-items: center;
        border-radius: 13px;
        background: #e6f0eb;
        color: #367b6e;
        font-size: 1.2rem;
    }

    .sf-insulation-point strong {
        display: block;
        margin-bottom: 6px;
        color: #243a33;
    }

    .sf-insulation-point p {
        margin: 0;
        color: #68766f;
        font-size: .88rem;
        line-height: 1.8;
    }

    .sf-product-story {
        position: relative;
        overflow: hidden;
        border-radius: 26px;
        background: #203c34;
        color: #fff;
    }

    .sf-product-story::after {
        position: absolute;
        top: -120px;
        left: -100px;
        width: 300px;
        height: 300px;
        border: 1px solid rgba(255, 255, 255, .09);
        border-radius: 50%;
        box-shadow: 0 0 0 35px rgba(255, 255, 255, .025), 0 0 0 70px rgba(255, 255, 255, .02);
        content: "";
        pointer-events: none;
    }

    .sf-product-story-inner {
        position: relative;
        z-index: 1;
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 24px;
        align-items: center;
        padding: clamp(24px, 5vw, 48px);
    }

    .sf-product-story h2 {
        margin: 0 0 12px;
        color: #fff;
        font-size: clamp(1.5rem, 3vw, 2.15rem);
    }

    .sf-product-story p {
        max-width: 760px;
        margin: 0;
        color: rgba(255, 255, 255, .76);
        line-height: 2;
    }

    .sf-product-story-icon {
        display: grid;
        width: 78px;
        height: 78px;
        place-items: center;
        border: 1px solid rgba(255, 255, 255, .18);
        border-radius: 24px;
        background: rgba(255, 255, 255, .08);
        color: #e6b15b;
        font-size: 2rem;
        animation: sf-float 3.5s ease-in-out infinite;
    }

    .sf-usecase-card {
        height: 100%;
        padding: 25px;
        border: 1px solid rgba(29, 52, 45, .1);
        border-radius: 22px;
        background: #fff;
        transition: transform .25s ease, box-shadow .25s ease;
    }

    .sf-usecase-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 18px 45px rgba(22, 44, 36, .1);
    }

    .sf-usecase-card .sf-usecase-icon {
        display: inline-grid;
        width: 50px;
        height: 50px;
        margin-bottom: 15px;
        place-items: center;
        border-radius: 16px;
        background: #f4eddf;
        color: #a8752f;
        font-size: 1.35rem;
    }

    .sf-usecase-card h3 {
        margin: 0 0 10px;
        color: #263b34;
        font-size: 1.15rem;
    }

    .sf-usecase-card p {
        margin: 0;
        color: #64716b;
        line-height: 1.9;
    }

    .sf-disclaimer {
        margin: 20px 0 0;
        color: #6d7973;
        font-size: .86rem;
        line-height: 1.9;
    }

    .sf-reveal-up {
        opacity: 0;
        transform: translateY(22px);
        transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1);
    }

    .sf-reveal-up.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

    @keyframes sf-heat-drift {
        0%, 100% { transform: translateY(8px) rotate(7deg); opacity: .35; }
        50% { transform: translateY(-10px) rotate(-8deg); opacity: 1; }
    }

    @keyframes sf-sun-pulse {
        0%, 100% { transform: scale(1); }
        50% { transform: scale(1.08); }
    }

    @keyframes sf-float {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-8px); }
    }

    @media (max-width: 767.98px) {
        .sf-showcase-layout {
            grid-template-columns: 1fr;
        }

        .sf-thermal-card {
            min-height: 330px;
        }

        .sf-scene-house {
            width: 72%;
            transform: scale(.9);
        }

        .sf-insulation-points {
            grid-template-columns: 1fr;
        }

        .sf-product-story-inner {
            grid-template-columns: 1fr;
        }

        .sf-product-story-icon {
            width: 60px;
            height: 60px;
            border-radius: 19px;
            font-size: 1.6rem;
        }
    }

    @media (prefers-reduced-motion: reduce) {
        .sf-heat-wave,
        .sf-scene-sun,
        .sf-product-story-icon {
            animation: none !important;
        }

        .sf-reveal-up {
            opacity: 1;
            transform: none;
            transition: none;
        }
    }
    
        /* بخش راهنمای انتخاب محصول */
    .product-selection-section {
        position: relative;
        overflow: hidden;
        padding-block: clamp(70px, 9vw, 115px);
        background:
            radial-gradient(ellipse at 8% 12%, rgba(223, 164, 74, .16), transparent 34%),
            radial-gradient(ellipse at 92% 88%, rgba(64, 128, 111, .14), transparent 32%),
            linear-gradient(145deg, #f5f7f3 0%, #e9efea 100%);
        isolation: isolate;
    }

    .product-selection-section::before {
        position: absolute;
        z-index: -1;
        inset: 0;
        background-image:
            linear-gradient(rgba(36, 59, 50, .035) 1px, transparent 1px),
            linear-gradient(90deg, rgba(36, 59, 50, .035) 1px, transparent 1px);
        background-size: 36px 36px;
        content: "";
        mask-image: linear-gradient(to bottom, transparent, #000 15%, #000 85%, transparent);
        pointer-events: none;
    }

    .product-selection-section .section-heading {
        max-width: 760px;
        margin: 0 auto 42px;
        text-align: center;
    }

    .product-selection-section .section-heading .eyebrow {
        justify-content: center;
    }

    .product-selection-section .section-heading h2 {
        margin-bottom: 12px;
        color: #203a32;
    }

    .product-selection-section .section-heading p {
        max-width: 650px;
        margin-inline: auto;
        color: #63736c;
        line-height: 2;
    }

    .selection-card {
        position: relative;
        height: 100%;
        min-height: 265px;
        overflow: hidden;
        padding: 30px 27px;
        border: 1px solid rgba(34, 63, 52, .09);
        border-radius: 22px;
        background: rgba(255, 255, 255, .88);
        box-shadow: 0 12px 35px rgba(35, 59, 49, .06);
        transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
    }

    .selection-card::after {
        position: absolute;
        right: -35px;
        bottom: -55px;
        width: 135px;
        height: 135px;
        border: 1px solid rgba(60, 119, 101, .09);
        border-radius: 50%;
        box-shadow: 0 0 0 18px rgba(60, 119, 101, .025);
        content: "";
        pointer-events: none;
        transition: transform .35s ease;
    }

    .selection-card:hover {
        transform: translateY(-7px);
        border-color: rgba(60, 119, 101, .23);
        box-shadow: 0 22px 48px rgba(35, 59, 49, .12);
    }

    .selection-card:hover::after {
        transform: scale(1.12);
    }

    .selection-card-top {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 14px;
        margin-bottom: 23px;
    }

    .selection-card-icon {
        display: inline-grid;
        width: 56px;
        height: 56px;
        flex: 0 0 56px;
        place-items: center;
        border: 1px solid rgba(56, 120, 102, .11);
        border-radius: 18px;
        background: linear-gradient(145deg, #eaf3ed, #dcebe3);
        color: #347b6c;
        font-size: 1.45rem;
        transition: transform .28s ease, background .28s ease, color .28s ease;
    }

    .selection-card:hover .selection-card-icon {
        transform: rotate(-5deg) scale(1.06);
        background: #347b6c;
        color: #fff;
    }

    .selection-card-number {
        color: rgba(39, 75, 62, .18);
        font-size: 2.15rem;
        font-weight: 800;
        line-height: 1;
    }

    .selection-card h3 {
        margin: 0 0 11px;
        color: #213b33;
        font-size: 1.2rem;
        font-weight: 750;
    }

    .selection-card p {
        position: relative;
        z-index: 1;
        margin: 0;
        color: #63716b;
        font-size: .94rem;
        line-height: 2;
    }

    .selection-bottom-cta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 22px;
        margin-top: 34px;
        padding: 23px 27px;
        border: 1px solid rgba(255, 255, 255, .12);
        border-radius: 20px;
        background: linear-gradient(110deg, #203d34, #315b4d);
        box-shadow: 0 16px 35px rgba(32, 61, 52, .18);
        color: #fff;
    }

    .selection-bottom-copy {
        display: flex;
        align-items: center;
        gap: 15px;
    }

    .selection-bottom-icon {
        display: inline-grid;
        width: 48px;
        height: 48px;
        flex: 0 0 48px;
        place-items: center;
        border: 1px solid rgba(255, 255, 255, .17);
        border-radius: 15px;
        background: rgba(255, 255, 255, .09);
        color: #f0bc68;
        font-size: 1.25rem;
    }

    .selection-bottom-copy strong {
        display: block;
        margin-bottom: 4px;
        color: #fff;
        font-size: 1rem;
    }

    .selection-bottom-copy span {
        display: block;
        color: rgba(255, 255, 255, .72);
        font-size: .88rem;
        line-height: 1.8;
    }

    .selection-bottom-button {
        display: inline-flex;
        min-height: 48px;
        flex: 0 0 auto;
        align-items: center;
        justify-content: center;
        gap: 10px;
        padding: 12px 20px;
        border: 1px solid #f0bc68;
        border-radius: 12px;
        background: #f0bc68;
        color: #243c33;
        font-weight: 750;
        text-decoration: none;
        transition: background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    .selection-bottom-button:hover {
        transform: translateY(-2px);
        border-color: #ffd080;
        background: #ffd080;
        color: #20372f;
        box-shadow: 0 8px 22px rgba(0, 0, 0, .16);
    }

    .selection-bottom-button:focus-visible {
        outline: 3px solid #fff;
        outline-offset: 4px;
    }

    .selection-bottom-button i {
        transition: transform .2s ease;
    }

    .selection-bottom-button:hover i {
        transform: translateX(-4px);
    }

    @media (max-width: 767.98px) {
        .product-selection-section .section-heading {
            margin-bottom: 30px;
            text-align: right;
        }

        .product-selection-section .section-heading .eyebrow {
            justify-content: flex-start;
        }

        .selection-card {
            min-height: auto;
            padding: 24px;
        }

        .selection-bottom-cta {
            align-items: stretch;
            flex-direction: column;
            padding: 21px;
        }

        .selection-bottom-button {
            width: 100%;
        }
    }

    @media (prefers-reduced-motion: reduce) {
        .selection-card,
        .selection-card::after,
        .selection-card-icon,
        .selection-bottom-button,
        .selection-bottom-button i {
            transition: none;
        }
    }