/* ============================================================
   ایمن قدم کاسپین — طراحی مدرن، رسمی و قابل اعتماد
   پالت سرمه‌ای حرفه‌ای + لهجه برنزی آرمیده
   ============================================================ */

:root {
    /* پالت اصلی — سرمه‌ای عمیق (اعتماد و رسمیت) */
    --c-primary:      #15446F;
    --c-primary-600:  #10375F;
    --c-primary-700:  #0C2B4C;
    --c-primary-800:  #0A2138;
    --c-primary-soft: rgba(21, 68, 111, 0.08);
    --c-primary-mid:  rgba(21, 68, 111, 0.14);
    --c-primary-line: rgba(21, 68, 111, 0.18);

    /* لهجه برنزی آرمیده — برای جزئیات ظریف */
    --c-accent:       #B8892E;
    --c-accent-600:   #9C7426;
    --c-accent-soft:  rgba(184, 137, 46, 0.10);

    /* رنگ‌های تکمیلی */
    --c-fire:         #B03A2E;
    --c-fire-soft:    rgba(176, 58, 46, 0.08);
    --c-fire-line:    rgba(176, 58, 46, 0.18);
    --c-eco:          #2F6B52;
    --c-eco-soft:     rgba(47, 107, 82, 0.10);

    /* متن */
    --c-ink:          #16263B;
    --c-ink-2:        #4A5A70;
    --c-ink-3:        #8491A5;

    /* سطوح و پس‌زمینه */
    --c-light:        #F5F7FA;
    --c-light-2:      #EAEEF4;
    --c-surface:      #FFFFFF;
    --c-line:         #E4E9F0;
    --c-line-2:       #CFD8E3;

    /* حالت تیره (فوتر / تماس) */
    --c-dark-bg:      #0A1F36;
    --c-dark-bg-2:    #0E2A49;
    --c-dark-line:    rgba(255, 255, 255, 0.09);
    --c-dark-text:    #EAF0F7;
    --c-dark-muted:   #98A9BF;

    /* سایه‌های نرم */
    --shadow-s: 0 1px 2px rgba(14, 32, 54, 0.05), 0 3px 10px rgba(14, 32, 54, 0.05);
    --shadow-m: 0 10px 30px rgba(14, 32, 54, 0.09);
    --shadow-l: 0 24px 60px rgba(14, 32, 54, 0.14);

    /* گوشه‌ها */
    --r-s: 10px;
    --r-m: 16px;
    --r-l: 24px;
    --r-full: 999px;

    --section-padding: 92px 0;
    --t-fast: 0.18s ease;
    --t-base: 0.28s cubic-bezier(0.25, 0.6, 0.3, 1);
    --font: 'Vazirmatn', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scrollbar-width: thin;
    scrollbar-color: var(--c-primary) var(--c-light-2);
}

html::-webkit-scrollbar { width: 10px; }
html::-webkit-scrollbar-track { background: var(--c-light-2); }
html::-webkit-scrollbar-thumb { background: var(--c-primary); border-radius: 8px; border: 2px solid var(--c-light-2); }

body {
    font-family: var(--font);
    background: var(--c-light);
    color: var(--c-ink);
    line-height: 1.85;
    direction: rtl;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; }

::selection { background: rgba(21, 68, 111, 0.2); color: var(--c-ink); }

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Navbar === */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.82);
    -webkit-backdrop-filter: blur(14px) saturate(1.6);
    backdrop-filter: blur(14px) saturate(1.6);
    border-bottom: 1px solid transparent;
    transition: padding var(--t-base), background var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(255, 255, 255, 0.94);
    border-bottom-color: var(--c-line);
    box-shadow: 0 4px 20px rgba(14, 32, 54, 0.06);
}

.nav-container { display: flex; align-items: center; justify-content: space-between; }
.nav-brand { display: flex; align-items: center; gap: 13px; z-index: 1001; }
.brand-icon { flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.brand-icon svg { filter: drop-shadow(0 4px 10px rgba(21, 68, 111, 0.25)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name { font-weight: 800; font-size: 1.08rem; color: var(--c-primary-700); letter-spacing: -0.2px; }
.brand-subtitle { font-size: 0.7rem; color: var(--c-ink-3); font-weight: 400; letter-spacing: 0.4px; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}
.nav-toggle span { width: 25px; height: 2px; background: var(--c-ink); border-radius: 2px; transition: transform var(--t-base), opacity var(--t-base); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a {
    position: relative;
    padding: 9px 13px;
    font-size: 0.86rem;
    font-weight: 500;
    color: var(--c-ink-2);
    border-radius: var(--r-s);
    transition: color var(--t-fast);
    white-space: nowrap;
}
.nav-links a::after {
    content: '';
    position: absolute;
    right: 14px; left: 14px; bottom: 5px;
    height: 2px;
    border-radius: 2px;
    background: var(--c-accent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--t-base);
}
.nav-links a:hover { color: var(--c-primary); }
.nav-links a.active-link { color: var(--c-primary); font-weight: 600; }
.nav-links a.active-link::after,
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
    background: var(--c-primary) !important;
    color: #fff !important;
    font-weight: 600 !important;
    padding: 10px 20px !important;
    border-radius: var(--r-s) !important;
    margin-right: 6px;
    box-shadow: 0 6px 16px rgba(21, 68, 111, 0.28);
    transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast) !important;
}
.nav-cta::after { display: none; }
.nav-cta:hover {
    background: var(--c-primary-600) !important;
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow: 0 9px 22px rgba(21, 68, 111, 0.34);
}

/* === Hero === */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 150px 0 92px;
    background:
        radial-gradient(1000px 480px at 85% -10%, rgba(21, 68, 111, 0.14), transparent 60%),
        radial-gradient(700px 420px at 0% 110%, rgba(184, 137, 46, 0.10), transparent 55%),
        var(--c-surface);
    border-bottom: 1px solid var(--c-line);
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(21, 68, 111, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(21, 68, 111, 0.035) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(ellipse at 30% 20%, #000 0%, transparent 72%);
    mask-image: radial-gradient(ellipse at 30% 20%, #000 0%, transparent 72%);
    pointer-events: none;
}
.hero-content { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; }

.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 15px;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-full);
    font-size: 0.8rem; color: var(--c-primary); font-weight: 600;
    box-shadow: var(--shadow-s);
    margin-bottom: 24px;
}
.hero-badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 0 4px var(--c-accent-soft); }

.hero-title { font-size: 3.3rem; font-weight: 800; line-height: 1.18; letter-spacing: -1px; margin-bottom: 16px; color: var(--c-ink); }
.title-line { display: block; }
.title-accent { color: var(--c-primary); position: relative; display: inline-block; }
.title-accent::after { content: ''; position: absolute; right: 2px; left: 2px; bottom: 8px; height: 10px; background: var(--c-accent-soft); z-index: -1; border-radius: 4px; }

.hero-subtitle { font-size: 1.18rem; color: var(--c-primary); font-weight: 600; margin-bottom: 14px; }
.hero-desc { font-size: 0.97rem; color: var(--c-ink-2); max-width: 520px; margin-bottom: 30px; line-height: 2; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 42px; }

/* === Buttons === */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 13px 26px;
    font-size: 0.95rem; font-weight: 600;
    border-radius: var(--r-s);
    cursor: pointer; border: none;
    transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
    line-height: 1.4;
}
.btn svg { flex-shrink: 0; }
.btn-primary { background: linear-gradient(180deg, var(--c-primary) 0%, var(--c-primary-700) 100%); color: #fff; box-shadow: 0 8px 20px rgba(21, 68, 111, 0.30); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(21, 68, 111, 0.36); background: linear-gradient(180deg, var(--c-primary-600) 0%, var(--c-primary-800) 100%); }
.btn-outline { background: transparent; color: var(--c-primary); border: 1.5px solid var(--c-primary-line); }
.btn-outline:hover { background: var(--c-primary-soft); border-color: var(--c-primary); }
.btn-xl { padding: 17px 34px; font-size: 1.06rem; gap: 14px; border-radius: 14px; }

/* === Hero Stats === */
.hero-stats { display: flex; align-items: center; gap: 30px; padding-top: 26px; border-top: 1px solid var(--c-line); }
.stat-item { text-align: center; position: relative; }
.stat-number { display: block; font-size: 1.7rem; font-weight: 800; color: var(--c-primary-700); line-height: 1.15; margin-bottom: 3px; }
.stat-label { font-size: 0.78rem; color: var(--c-ink-3); font-weight: 400; }
.stat-divider { width: 1px; height: 38px; background: var(--c-line-2); }

/* === Hero Visual === */
.hero-visual { position: relative; }
.hero-image-wrapper {
    position: relative;
    border-radius: var(--r-l);
    overflow: hidden;
    border: 1px solid var(--c-line);
    box-shadow: var(--shadow-l);
    transform: translateY(0);
    transition: transform var(--t-base);
}
.hero-image-wrapper::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(10, 33, 56, 0.25) 100%);
    pointer-events: none;
}
.hero-image { width: 100%; height: 430px; object-fit: cover; }

.info-card {
    position: absolute;
    display: inline-flex; align-items: center; gap: 10px;
    padding: 13px 18px;
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border: 1px solid var(--c-line);
    border-radius: var(--r-m);
    font-size: 0.84rem; font-weight: 600; color: var(--c-ink);
    box-shadow: var(--shadow-m);
    z-index: 3;
}
.info-card svg { color: var(--c-primary); flex-shrink: 0; }
.card-1 { top: 20px; right: -18px; }
.card-2 { bottom: 26px; left: -18px; }

/* === Section Styles === */
.section { padding: var(--section-padding); position: relative; }

.section-header { text-align: center; margin-bottom: 52px; max-width: 720px; margin-left: auto; margin-right: auto; }
.section-header-right { text-align: right; margin-left: 0; margin-right: 0; }

.section-tag {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 15px;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-full);
    font-size: 0.78rem; font-weight: 600; color: var(--c-primary);
    box-shadow: var(--shadow-s);
    margin-bottom: 16px;
}
.section-tag::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); }

.section-title { font-size: 2.05rem; font-weight: 800; line-height: 1.35; margin-bottom: 14px; color: var(--c-ink); letter-spacing: -0.5px; }

.section-line {
    width: 58px; height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
    margin: 0 auto 18px;
}
.section-header-right .section-line { margin: 0 0 18px; }

.section-desc { font-size: 0.96rem; color: var(--c-ink-2); max-width: 620px; margin: 0 auto; line-height: 2; }

/* === About Section === */
.section-about { background: var(--c-light); }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.about-image-stack { position: relative; }
.about-img { border-radius: var(--r-l); border: 1px solid var(--c-line); box-shadow: var(--shadow-m); }
.about-img-main { width: 100%; height: 400px; object-fit: cover; }
.about-img-secondary {
    position: absolute; bottom: -26px; left: -26px;
    width: 200px; height: 158px; object-fit: cover;
    border: 5px solid var(--c-surface);
    border-radius: var(--r-m);
    box-shadow: var(--shadow-m);
}
.about-image-stack::before {
    content: '';
    position: absolute;
    top: -30px; right: -30px;
    width: 120px; height: 120px;
    border: 2px solid var(--c-accent-soft);
    border-radius: var(--r-m);
    z-index: -1;
}

.about-lead { font-size: 1.05rem; color: var(--c-ink); line-height: 2; margin-bottom: 16px; }
.about-lead strong { color: var(--c-primary); }
.about-desc { font-size: 0.93rem; color: var(--c-ink-2); line-height: 2; margin-bottom: 30px; }

.feature-highlights { display: flex; flex-direction: column; gap: 12px; }
.feature-highlight {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 18px;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-m);
    transition: transform var(--t-fast), box-shadow var(--t-fast), border-color var(--t-fast);
}
.feature-highlight:hover { transform: translateY(-2px); box-shadow: var(--shadow-s); border-color: var(--c-primary-line); }
.feature-icon {
    flex-shrink: 0; width: 46px; height: 46px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(160deg, var(--c-primary-soft), var(--c-accent-soft));
    border-radius: 12px;
    color: var(--c-primary);
}
.feature-highlight h4 { font-size: 0.97rem; font-weight: 700; margin-bottom: 3px; color: var(--c-ink); }
.feature-highlight p { font-size: 0.84rem; color: var(--c-ink-2); line-height: 1.8; }

/* === Product Samples Gallery === */
.product-samples-gallery { margin-top: 40px; padding-top: 36px; border-top: 1px solid var(--c-line); }
.samples-title { font-size: 1.08rem; font-weight: 700; color: var(--c-primary); margin-bottom: 22px; text-align: center; }

.samples-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.sample-item {
    position: relative;
    border-radius: 14px; overflow: hidden;
    height: 136px; cursor: pointer;
    border: 1px solid var(--c-line);
    background: var(--c-surface);
    transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.sample-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); border-color: var(--c-primary-line); }
.sample-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.sample-item:hover img { transform: scale(1.07); }
.sample-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 45%, rgba(10, 33, 56, 0.9) 100%);
    display: flex; align-items: flex-end; padding: 12px;
    opacity: 0; transition: opacity var(--t-base);
}
.sample-item:hover .sample-overlay { opacity: 1; }
.sample-overlay span { font-size: 0.74rem; font-weight: 600; color: #fff; line-height: 1.6; }

/* === Catalog Section === */
.section-catalog { background: var(--c-light-2); }
.catalog-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.catalog-card {
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-l);
    overflow: hidden;
    box-shadow: var(--shadow-s);
    transition: transform var(--t-base), box-shadow var(--t-base);
}
.catalog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.catalog-image-wrapper { overflow: hidden; position: relative; }
.catalog-image { width: 100%; height: 320px; object-fit: cover; transition: transform 0.6s ease; }
.catalog-card:hover .catalog-image { transform: scale(1.05); }
.catalog-image-wrapper::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(10, 33, 56, 0.4) 100%);
    pointer-events: none;
}
.catalog-info { padding: 24px 26px 26px; }
.catalog-info h3 { font-size: 1.15rem; font-weight: 700; color: var(--c-ink); margin-bottom: 8px; }
.catalog-info p { font-size: 0.88rem; color: var(--c-ink-2); line-height: 1.8; }

/* === Product Types === */
.section-types { background: var(--c-light); }
.types-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.type-card {
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-l);
    overflow: hidden;
    display: flex; flex-direction: column;
    box-shadow: var(--shadow-s);
    transition: transform var(--t-base), box-shadow var(--t-base);
}
.type-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }

.type-card-image { position: relative; height: 210px; overflow: hidden; }
.type-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.type-card:hover .type-card-image img { transform: scale(1.05); }
.type-card-image::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(10, 33, 56, 0.35) 100%);
}
.type-card-badge {
    position: absolute; top: 14px; right: 14px; z-index: 3;
    padding: 6px 14px;
    border-radius: var(--r-full);
    font-size: 0.74rem; font-weight: 700; color: #fff;
    box-shadow: var(--shadow-s);
    background: var(--c-accent);
}
.badge-night { background: rgba(26, 43, 82, 0.9); }
.badge-eco { background: var(--c-eco); }

.type-card-content { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.type-icon {
    width: 52px; height: 52px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 14px;
}
.type-icon-glow { background: var(--c-primary-soft); color: var(--c-primary); }
.type-icon-eco { background: var(--c-eco-soft); color: var(--c-eco); }
.type-card-content h3 { font-size: 1.12rem; font-weight: 700; color: var(--c-ink); }
.type-card-content p { font-size: 0.87rem; color: var(--c-ink-2); line-height: 1.9; }

.type-features { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.type-features li {
    padding: 5px 12px;
    background: var(--c-light);
    border: 1px solid var(--c-line);
    border-radius: var(--r-full);
    font-size: 0.76rem; font-weight: 600; color: var(--c-primary);
}

/* === Gallery Section === */
.section-gallery { background: var(--c-light-2); }
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gallery-item {
    position: relative; overflow: hidden; cursor: pointer;
    border-radius: var(--r-m);
    border: 1px solid var(--c-line);
    box-shadow: var(--shadow-s);
    aspect-ratio: 4 / 3;
}
.gallery-item img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(10, 33, 56, 0.85) 100%);
    display: flex; align-items: flex-end;
    padding: 18px;
    opacity: 0; transition: opacity var(--t-base);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay span { font-size: 0.86rem; font-weight: 600; color: #fff; }

/* === Fire Section === */
.section-fire { background: var(--c-light); }
.fire-content { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 56px; align-items: center; }
.fire-text p { font-size: 0.93rem; color: var(--c-ink-2); line-height: 2; margin-bottom: 16px; }
.fire-text strong { color: var(--c-fire); font-weight: 700; }

.fire-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 26px; }
.fire-feature {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 16px;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-m);
    transition: transform var(--t-fast), box-shadow var(--t-fast), border-color var(--t-fast);
}
.fire-feature:hover { transform: translateY(-2px); box-shadow: var(--shadow-s); border-color: var(--c-fire-line); }
.fire-feature svg { color: var(--c-fire); flex-shrink: 0; }
.fire-feature span { font-size: 0.86rem; font-weight: 600; color: var(--c-ink); }

.fire-visual { display: flex; align-items: center; justify-content: center; }
.fire-icon-wrapper {
    width: 220px; height: 220px;
    display: flex; align-items: center; justify-content: center;
    background: radial-gradient(circle at 50% 50%, var(--c-fire-soft), transparent 70%);
    border: 1px solid var(--c-fire-line);
    border-radius: 50%;
    position: relative;
}
.fire-icon-wrapper::after {
    content: '';
    position: absolute; inset: 18px;
    border: 1px dashed var(--c-fire-line);
    border-radius: 50%;
}
.fire-icon-svg { width: 120px; height: 120px; }

/* === Consultation Section === */
.section-consultation { background: var(--c-light-2); }
.consultation-card {
    max-width: 900px; margin: 0 auto; text-align: center;
    padding: 52px 44px 46px;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-l);
    box-shadow: var(--shadow-s);
    position: relative;
    overflow: hidden;
}
.consultation-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
}
.consultation-card::after {
    content: '';
    position: absolute;
    top: -70px; left: -70px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, var(--c-accent-soft), transparent 70%);
    pointer-events: none;
}
.consultation-icon {
    margin-bottom: 20px; color: var(--c-primary);
    width: 92px; height: 92px; margin-left: auto; margin-right: auto;
    display: flex; align-items: center; justify-content: center;
    background: var(--c-primary-soft);
    border-radius: 24px;
}
.consultation-text { font-size: 0.93rem; color: var(--c-ink-2); line-height: 2; margin-bottom: 16px; max-width: 680px; margin-left: auto; margin-right: auto; }
.consultation-text strong { color: var(--c-primary); font-weight: 700; }

.consultation-steps { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 40px; flex-wrap: wrap; }
.step { display: flex; flex-direction: column; align-items: center; gap: 12px; min-width: 118px; }
.step-number {
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(160deg, var(--c-primary), var(--c-primary-700));
    color: #fff; font-size: 1.15rem; font-weight: 700;
    border-radius: 14px;
    box-shadow: 0 8px 18px rgba(21, 68, 111, 0.26);
    position: relative;
}
.step-text h4 { font-size: 0.92rem; font-weight: 700; color: var(--c-ink); margin-bottom: 2px; }
.step-text p { font-size: 0.77rem; color: var(--c-ink-3); }
.step-arrow { color: var(--c-accent); display: flex; }

/* === Why Section === */
.section-why { background: var(--c-light); }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.why-card {
    padding: 30px 24px;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: var(--r-l);
    text-align: center;
    box-shadow: var(--shadow-s);
    transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.why-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); border-color: var(--c-primary-line); }
.why-card-icon {
    width: 60px; height: 60px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(160deg, var(--c-primary-soft), var(--c-accent-soft));
    border-radius: 16px;
    margin: 0 auto 18px;
    color: var(--c-primary);
    transition: transform var(--t-base);
}
.why-card:hover .why-card-icon { transform: translateY(-3px) scale(1.05); }
.icon-fire { background: var(--c-fire-soft); color: var(--c-fire); }
.why-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--c-ink); margin-bottom: 8px; }
.why-card p { font-size: 0.86rem; color: var(--c-ink-2); line-height: 1.9; }

/* === Contact Section === */
.section-contact {
    background:
        radial-gradient(900px 500px at 90% 0%, rgba(184, 137, 46, 0.16), transparent 60%),
        radial-gradient(800px 500px at 0% 100%, rgba(21, 68, 111, 0.35), transparent 55%),
        var(--c-dark-bg);
    padding: 84px 0;
}
.contact-wrapper {
    display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center;
    padding: 50px;
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid var(--c-dark-line);
    border-radius: var(--r-l);
    box-shadow: var(--shadow-l);
}
.contact-title { font-size: 1.85rem; font-weight: 800; margin-bottom: 18px; line-height: 1.4; color: var(--c-dark-text); }
.contact-desc { font-size: 0.93rem; color: var(--c-dark-muted); line-height: 2; margin-bottom: 16px; }
.contact-subtitle { font-size: 0.97rem; color: #B9C6D8; font-weight: 600; margin-bottom: 30px; }
.contact-phone-text { display: flex; flex-direction: column; align-items: flex-start; }
.contact-phone-label { font-size: 0.8rem; font-weight: 400; opacity: 0.85; color: #CBD6E4; }
.contact-phone-number { font-size: 1.4rem; font-weight: 800; letter-spacing: 1px; direction: ltr; color: #fff; }

.contact-decoration { display: flex; align-items: center; justify-content: center; }
.contact-shield { filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.35)); }

/* === Footer === */
.footer { background: var(--c-dark-bg-2); border-top: 1px solid var(--c-dark-line); padding: 44px 0 22px; }
.footer-content {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 22px;
    padding-bottom: 22px; border-bottom: 1px solid var(--c-dark-line);
}
.footer-brand { display: flex; align-items: center; gap: 13px; }
.footer-brand h3 { font-size: 1.02rem; font-weight: 700; color: var(--c-dark-text); }
.footer-brand p { font-size: 0.78rem; color: var(--c-dark-muted); }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { font-size: 0.85rem; color: var(--c-dark-muted); transition: color var(--t-fast); }
.footer-links a:hover { color: #fff; }
.footer-phone {
    display: inline-flex; align-items: center; gap: 9px;
    font-size: 0.94rem; color: #B9C6D8; font-weight: 600; direction: ltr;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--c-dark-line);
    border-radius: var(--r-full);
    transition: color var(--t-fast), border-color var(--t-fast);
}
.footer-phone:hover { color: #fff; border-color: rgba(255, 255, 255, 0.22); }
.footer-bottom { padding-top: 22px; text-align: center; }
.footer-bottom p { font-size: 0.8rem; color: var(--c-dark-muted); }

/* === Floating UI === */
.back-to-top {
    position: fixed; bottom: 96px; left: 20px;
    width: 46px; height: 46px;
    background: var(--c-surface);
    border: 1px solid var(--c-line);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    color: var(--c-primary); cursor: pointer;
    opacity: 0; visibility: hidden;
    transform: translateY(10px);
    box-shadow: var(--shadow-m);
    transition: opacity var(--t-base), transform var(--t-base), visibility var(--t-base), background var(--t-fast);
    z-index: 900;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--c-primary); color: #fff; }

.floating-phone {
    position: fixed; bottom: 24px; left: 24px;
    width: 58px; height: 58px;
    background: linear-gradient(160deg, var(--c-primary), var(--c-primary-700));
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 12px 30px rgba(21, 68, 111, 0.4);
    z-index: 900;
    transition: transform var(--t-fast);
}
.floating-phone:hover { transform: translateY(-3px) scale(1.05); }
.floating-phone::after {
    content: '';
    position: absolute; inset: -8px;
    border: 2px solid rgba(21, 68, 111, 0.25);
    border-radius: 50%;
    animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
    0% { transform: scale(0.9); opacity: 1; }
    100% { transform: scale(1.45); opacity: 0; }
}

/* === Scroll Reveal === */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   Responsive — از تبلت تا موبایل کوچک (۳۰۰px+)
   ============================================================ */

/* --- صفحه‌نمای متوسط (گوشی بزرگ / تبلت / لپ‌تاپ کوچک) --- */
@media (max-width: 1024px) {
    .nav-toggle { display: flex; }

    .nav-links {
        position: fixed; top: 0; right: 0;
        width: min(300px, 80vw); height: 100dvh;
        background: var(--c-surface);
        flex-direction: column;
        padding: 96px 24px 40px;
        gap: 4px;
        transform: translateX(100%);
        transition: transform var(--t-base);
        border-left: 1px solid var(--c-line);
        box-shadow: var(--shadow-l);
        z-index: 1000;
        overflow-y: auto;
    }
    .nav-links.active { transform: translateX(0); }
    .nav-links a { width: 100%; padding: 14px 8px; font-size: 0.98rem; text-align: right; }
    .nav-links a::after { display: none; }
    .nav-links .nav-cta { margin-right: 0; margin-top: 12px; text-align: center; }

    .hero { padding: 126px 0 70px; }
    .hero-content { grid-template-columns: 1fr; gap: 44px; }
    .hero-visual { order: -1; max-width: 560px; margin: 0 auto; width: 100%; }
    .hero-title { font-size: 2.7rem; }

    .about-grid { grid-template-columns: 1fr; gap: 56px; }
    .about-image-stack { max-width: 520px; margin: 0 auto; width: 100%; }

    .types-grid { grid-template-columns: 1fr 1fr; }
    .why-grid { grid-template-columns: 1fr 1fr; }
    .fire-content { grid-template-columns: 1fr; gap: 40px; }
    .samples-grid { grid-template-columns: repeat(3, 1fr); }
}

/* --- موبایل بزرگ / تبلت ایستاده --- */
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .section { --section-padding: 60px 0; }
    .section-header { margin-bottom: 38px; }
    .section-title { font-size: 1.7rem; }
    .section-desc { font-size: 0.9rem; }

    .hero { padding: 118px 0 62px; }
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1.02rem; }
    .hero-desc { font-size: 0.9rem; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { width: 100%; }
    .hero-visual { max-width: 100%; }
    .hero-image { height: 320px; }
    .hero-stats { justify-content: space-around; }
    .info-card { display: none; }

    .catalog-showcase { grid-template-columns: 1fr; }
    .catalog-image { height: 260px; }
    .types-grid { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr; }
    .fire-features { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; }
    .gallery-item { aspect-ratio: 16 / 10; }

    .about-grid { gap: 46px; }
    .about-img-main { height: 300px; }
    .about-img-secondary { width: 142px; height: 110px; bottom: -16px; left: -10px; border-width: 4px; }

    .samples-grid { grid-template-columns: repeat(3, 1fr); }
    .sample-item { height: 104px; }

    .consultation-steps { flex-direction: column; align-items: stretch; }
    .step { flex-direction: row; justify-content: flex-start; align-items: center; text-align: right; gap: 13px; min-width: 0; width: 100%; background: var(--c-light); border: 1px solid var(--c-line); border-radius: var(--r-m); padding: 13px 16px; }
    .step-arrow { display: none; }
    .consultation-card { padding: 38px 20px 32px; }
    .consultation-icon { width: 76px; height: 76px; }

    .contact-wrapper { grid-template-columns: 1fr; padding: 30px 20px; gap: 20px; }
    .contact-decoration { display: none; }
    .contact-title { font-size: 1.6rem; }

    .footer-content { flex-direction: column; text-align: center; }
    .footer-brand { justify-content: center; }
    .footer-links { justify-content: center; }
}

/* --- گوشی کوچک --- */
@media (max-width: 560px) {
    .container { padding: 0 16px; }
    .hero { padding: 110px 0 56px; }
    .hero-title { font-size: 1.9rem; }
    .hero-subtitle { font-size: 0.98rem; }
    .hero-desc { margin-bottom: 24px; }
    .hero-badge { font-size: 0.74rem; padding: 6px 12px; }
    .hero-image { height: 250px; }
    .hero-stats { justify-content: space-between; gap: 8px; }
    .stat-number { font-size: 1.45rem; }

    .btn-xl { padding: 14px 20px; font-size: 0.96rem; }
    .btn { padding: 12px 20px; }

    .section-title { font-size: 1.5rem; }
    .section-header { margin-bottom: 32px; }

    .about-img-main { height: 250px; }
    .about-img-secondary { width: 118px; height: 92px; bottom: -12px; left: -6px; }
    .about-image-stack::before { width: 82px; height: 82px; top: -18px; right: -14px; }
    .about-lead { font-size: 0.98rem; }
    .about-desc { font-size: 0.88rem; }

    .samples-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .sample-item { height: 96px; border-radius: 10px; }
    .samples-title { font-size: 1rem; }

    .catalog-image { height: 220px; }
    .catalog-info { padding: 18px 18px 20px; }
    .catalog-info h3 { font-size: 1.05rem; }
    .type-card-image { height: 180px; }
    .type-card-content { padding: 16px 18px 20px; }

    .fire-icon-wrapper { width: 170px; height: 170px; }
    .fire-icon-svg { width: 90px; height: 90px; }

    .consultation-card { padding: 32px 16px 28px; }
    .consultation-text { font-size: 0.88rem; }

    .why-card { padding: 24px 18px; }
    .why-card h3 { font-size: 1rem; }

    .contact-phone-number { font-size: 1.25rem; }
    .contact-wrapper { padding: 26px 16px; }

    .footer-content { gap: 18px; }
    .footer-links { gap: 16px; }

    .back-to-top { bottom: 88px; left: 14px; width: 42px; height: 42px; }
    .floating-phone { bottom: 16px; left: 16px; width: 52px; height: 52px; }
}

/* --- گوشی خیلی کوچک (۳۰۰ تا ۴۸۰) --- */
@media (max-width: 380px) {
    .container { padding: 0 14px; }
    .brand-name { font-size: 0.98rem; }
    .brand-subtitle { font-size: 0.62rem; }

    .hero { padding: 102px 0 50px; }
    .hero-title { font-size: 1.6rem; }
    .hero-subtitle { font-size: 0.92rem; }
    .hero-actions { gap: 10px; }
    .hero-stats { flex-direction: column; gap: 14px; }
    .stat-divider { width: 42px; height: 1px; }
    .stat-number { font-size: 1.5rem; }
    .hero-image { height: 220px; }

    .section-title { font-size: 1.35rem; }
    .section-tag { font-size: 0.7rem; padding: 5px 11px; }

    .about-img-main { height: 210px; }
    .about-img-secondary { display: none; }
    .about-image-stack::before { display: none; }

    .samples-grid { grid-template-columns: repeat(2, 1fr); }
    .sample-item { height: 88px; }

    .fire-feature { padding: 12px; gap: 10px; }
    .fire-feature span { font-size: 0.8rem; }

    .step { gap: 11px; padding: 11px 13px; }
    .step-number { width: 40px; height: 40px; font-size: 1rem; }
    .step-text h4 { font-size: 0.86rem; }

    .contact-title { font-size: 1.4rem; }
    .contact-subtitle { font-size: 0.9rem; }

    .footer-brand h3 { font-size: 0.95rem; }
    .footer-brand p { font-size: 0.72rem; }
    .footer-phone { font-size: 0.85rem; padding: 8px 13px; }
    .footer-links { flex-direction: column; gap: 12px; }
}