/* ==========================================================================
   پایانه گوهرسنگ‌ها و فلزات گرانبها - استایل اصلی
   Gemstone Terminal - Main Stylesheet
   ========================================================================== */

/* ---------- فونت Vazir ---------- */
@import url('https://cdn.jsdelivr.net/gh/rastikerdar/vazirmatn@v33.003/Vazirmatn-font-face.css');

/* ==========================================================================
   1. متغیرهای سراسری (CSS Custom Properties)
   ========================================================================== */
:root {
    /* رنگ‌ها */
    --color-primary: #1a237e;
    /* آبی نفتی تیره */
    --color-primary-light: #283593;
    --color-primary-dark: #0d1442;
    --color-secondary: #c9a84c;
    /* طلایی */
    --color-accent: #d4af37;
    /* طلایی روشن */
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f5;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #888888;
    --color-white: #ffffff;
    --color-border: #e0e0e0;

    /* تایپوگرافی */
    --font-main: 'Vazirmatn', Tahoma, Arial, sans-serif;
    --fs-h1: 2.5rem;
    --fs-h2: 2rem;
    --fs-h3: 1.5rem;
    --fs-body: 1rem;
    --fs-small: 0.875rem;

    /* لی‌اوت */
    --container-width: 1200px;
    --gap: 30px;
    --section-padding: 80px;
    --radius: 8px;
    --radius-pill: 50px;
    --header-height: 116px;
    /* مجموع نوار بالا + نوار منو */
    --topbar-height: 64px;
    --menubar-height: 52px;
    --color-header-top: #0d1530;
    /* آبی نفتی بسیار تیره - نوار بالا */
    --color-header-menu: #14203f;
    /* آبی نفتی تیره - نوار منو */

    /* سایه‌ها */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.10);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.15);

    /* ترنزیشن */
    --transition: 0.3s ease;

    /* رنگ سه ستون محصول (مطابق نمونه طراحی) */
    --pillar-gem: #2e9e6b;
    /* گوهرسنگ‌ها - سبز */
    --pillar-gem-soft: #e8f6ef;
    --pillar-metal: #8e5fc4;
    /* فلزات گرانبها - بنفش */
    --pillar-metal-soft: #f1e9fa;
    --pillar-jewel: #c9952f;
    /* جواهرات - طلایی */
    --pillar-jewel-soft: #fbf3e0;
}

/* ==========================================================================
   2. ریست و پایه
   ========================================================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    font-size: var(--fs-body);
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-bg);
    direction: rtl;
    text-align: right;
    overflow-x: hidden;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-secondary);
}

ul,
ol {
    list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.4;
    font-weight: 700;
    color: var(--color-primary);
}

/* ==========================================================================
   3. کلاس‌های کمکی (Utilities)
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin-inline: auto;
    padding-inline: 20px;
}

.section {
    padding-block: var(--section-padding);
}

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

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 50px;
}

.section-header h2 {
    font-size: var(--fs-h2);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
    padding-bottom: 14px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 50%;
    transform: translateX(50%);
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-secondary), var(--color-accent));
    border-radius: 2px;
}

.section-header p {
    color: var(--color-text-light);
    font-size: 1.05rem;
}

.text-gold {
    color: var(--color-secondary);
}

/* دکمه‌ها */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 500;
    border: 2px solid transparent;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
    border-color: var(--color-secondary);
}

.btn--primary:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn--secondary:hover {
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
    transform: translateY(-2px);
}

.btn--outline-white {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline-white:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

.btn--lg {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* انیمیشن fade-in هنگام اسکرول */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ==========================================================================
   4. هدر تیره دو ردیفه (Dark Two-Row Header)
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    inset-inline: 0;
    z-index: 1000;
    background-color: var(--color-header-top);
    transition: box-shadow var(--transition);
}

.header.is-scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

/* ---------- نوار بالا (Top bar) ---------- */
.header__top {
    height: var(--topbar-height);
    background-color: var(--color-header-top);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header__top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 16px;
}

/* ابزارها (سمت چپ): تم، زبان، جستجو */
.header__tools {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-pill);
    color: rgba(255, 255, 255, 0.85);
    font-family: var(--font-main);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
}

.tool-btn:hover {
    background: rgba(201, 168, 76, 0.18);
    color: var(--color-secondary);
    border-color: rgba(201, 168, 76, 0.4);
}

/* آیکون پرچم ایران (گِرد) */
.tool-flag {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    display: block;
}

/* خوشنویسی وسط */
.header__calligraphy {
    flex: 1;
    text-align: center;
    overflow: hidden;
}

.header__calligraphy img {
    height: 40px;
    width: auto;
    display: inline-block;
    vertical-align: middle;
    opacity: 0.95;
}

/* لوگو (سمت راست) */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo__icon {
    font-size: 2rem;
    color: var(--color-secondary);
}

.logo__img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    flex-shrink: 0;
    display: block;
}

.footer__about .logo__img {
    width: 60px;
    height: 60px;
}

.logo__text {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
    text-align: right;
}

.logo__title {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--color-white);
    white-space: nowrap;
}

.logo__subtitle {
    font-size: 0.68rem;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
    white-space: nowrap;
}

/* ---------- نوار منو (Menu bar) ---------- */
.header__menu {
    height: var(--menubar-height);
    background-color: var(--color-header-menu);
}

.header__menu-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 100%;
    position: relative;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav__item {
    position: relative;
}

.nav__link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 16px;
    height: var(--menubar-height);
    color: rgba(255, 255, 255, 0.82);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition), background-color var(--transition);
    white-space: nowrap;
}

.nav__link i.caret {
    font-size: 0.7rem;
    transition: transform var(--transition);
    opacity: 0.7;
}

.nav__link:hover,
.nav__item:hover>.nav__link,
.nav__link.is-active {
    color: var(--color-secondary);
    background-color: rgba(255, 255, 255, 0.04);
}

.nav__item:hover>.nav__link i.caret {
    transform: rotate(180deg);
}

/* زیرمنوی کشویی (Dropdown) */
.nav__submenu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 220px;
    background-color: var(--color-header-menu);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-top: 2px solid var(--color-secondary);
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition);
    z-index: 5;
}

.nav__item:hover>.nav__submenu,
.nav__submenu.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav__submenu a {
    display: block;
    padding: 10px 20px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    transition: all var(--transition);
}

.nav__submenu a:hover {
    background-color: rgba(201, 168, 76, 0.12);
    color: var(--color-secondary);
    padding-inline-start: 26px;
}

/* دکمه منوی موبایل */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 26px;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition);
}

.menu-toggle.is-open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* پوشش پشت منوی موبایل */
.nav-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 998;
}

.nav-overlay.is-active {
    opacity: 1;
    visibility: visible;
}
.logo__title1
{
    color: var(--pillar-metal-soft);
}
/* ==========================================================================
   5. بنر اصلی (Hero)
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: flex-start; /* متن از بالا شروع شود */
    padding-top: calc(var(--header-height) + 80px);

    background-color: #1a2382;
    background-image:
        linear-gradient(
            180deg,
            #1a2382 0%,
            #1a2382 26%,
            rgba(26, 35, 130, 0.55) 42%,
            rgba(26, 35, 130, 0) 58%
        ),
        url('../assets/images/logo/irana.png'); /* تصویر پرچم */
    background-repeat: no-repeat, no-repeat;
    background-position: center top, center bottom; /* بالا برای گرادیان، پایین برای پرچم */
    background-size: 100% 60%, 100% auto; /* ارتفاع پرچم کمتر و پایین‌تر دیده شود */
    color: var(--color-white);
    overflow: hidden;
}

.hero__content {

    position: relative;
    z-index: 2;

}

/* نشان بالای عنوان */
.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(201, 168, 76, 0.2);
    color: var(--color-accent);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    font-size: 0.8rem;       /* کوچکتر از قبل */
    font-weight: 500;
    margin-bottom: 18px;
    border: 1px solid rgba(201, 168, 76, 0.4);
}

/* اندازه تیتر و زیرتیتر کوچکتر */
/* تنظیم عرض برای شکستن متن به دو خط */
.hero__content {
    max-width: 800px;        /* عرض کادر متن */
    margin: 0 auto;          /* برای وسط‌چین کردن کل کادر در صفحه */
    text-align: right;      /* متن داخل کادر وسط‌چین شود */
    padding: 0 20px;         /* کمی فاصله از طرفین برای موبایل */
}

.hero h1 {
    color: var(--color-white);
    font-size: clamp(1.8rem, 3vw, 2.8rem); /* اندازه فونت منعطف */
    line-height: 1.4;
    margin-bottom: 20px;
    display: block;          /* مطمئن می‌شویم بلوک است */
}



.hero__subtitle {
    font-size: clamp(0.9rem, 1.6vw, 1.1rem); /* کمی کوچکتر */
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 28px;
    font-weight: 400;
}

/* دکمه‌ها */
.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* آیکن اسکرول پایین */
.hero__scroll {
    position: absolute;
    bottom: 30px;
    right: 50%;
    transform: translateX(50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    z-index: 2;
}

/* برای موبایل: متن کمی پایین‌تر تا روی لوگو/پرچم نیفتد */
@media (max-width: 768px) {
    .hero {
        padding-top: calc(var(--header-height) + 20px);
        background-size: 100% 55%, 100% auto;
    }
    .hero__content {
        margin-top: 20px;
    }
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(50%) translateY(0);
    }

    40% {
        transform: translateX(50%) translateY(-12px);
    }

    60% {
        transform: translateX(50%) translateY(-6px);
    }
}

/* ==========================================================================
   6. بخش معرفی (Intro)
   ========================================================================== */
.intro__box {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    background-color: var(--color-white);
    padding: 50px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--color-secondary);
}

.intro__box .icon {
    font-size: 2.5rem;
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.intro__box h2 {
    font-size: var(--fs-h2);
    margin-bottom: 18px;
}

.intro__box p {
    font-size: 1.15rem;
    color: var(--color-text-light);
    line-height: 2;
}

/* ==========================================================================
   7. کارت‌های خدمات (Services)
   ========================================================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

.service-card {
    background-color: var(--color-white);
    padding: 40px 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid var(--color-border);
}

.service-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-secondary);
}

.service-card__icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 50%;
    color: var(--color-secondary);
    font-size: 2.25rem;
    transition: all var(--transition);
}

.service-card:hover .service-card__icon {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    color: var(--color-primary-dark);
}

.service-card h3 {
    font-size: var(--fs-h3);
    margin-bottom: 14px;
}

.service-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ==========================================================================
   8. مزیت‌های رقابتی (Why Us)
   ========================================================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap);
}

.feature {
    text-align: center;
    padding: 20px;
}

.feature__icon {
    font-size: 3rem;
    color: var(--color-secondary);
    margin-bottom: 18px;
}

.feature h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.feature p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ==========================================================================
   9. آمار (Stats / Counter)
   ========================================================================== */
.stats {
    background:
        linear-gradient(135deg, rgba(13, 20, 66, 0.95), rgba(26, 35, 126, 0.95)),
        url('../assets/images/hero/stats-bg.svg') center/cover fixed no-repeat;
    color: var(--color-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap);
    text-align: center;
}

.stat__icon {
    font-size: 2.5rem;
    color: var(--color-secondary);
    margin-bottom: 16px;
}

.stat__number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1;
    margin-bottom: 8px;
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 6px;
}

.stat__suffix {
    font-size: 1.5rem;
    color: var(--color-secondary);
}

.stat__label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
}

/* ==========================================================================
   10. فراخوان همکاری (CTA / Cooperation)
   ========================================================================== */
.cta-box {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    border-radius: var(--radius);
    padding: 60px 50px;
    text-align: center;
    color: var(--color-primary-dark);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '\f3a5';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12rem;
    opacity: 0.12;
}

.cta-box h2 {
    color: var(--color-primary-dark);
    font-size: var(--fs-h2);
    margin-bottom: 16px;
    position: relative;
}

.cta-box p {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 30px;
    position: relative;
    color: var(--color-primary-dark);
}

.cta-box .btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.cta-box .btn--primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

/* ==========================================================================
   11. اخبار (News)
   ========================================================================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

.news-card {
    background-color: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.news-card__image {
    position: relative;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background-color: var(--color-bg-alt);
}

.news-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-card__image img {
    transform: scale(1.08);
}

.news-card__date {
    position: absolute;
    top: 14px;
    right: 14px;
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    font-weight: 500;
}

.news-card__body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.news-card__body h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.news-card__body p {
    color: var(--color-text-light);
    font-size: 0.92rem;
    margin-bottom: 18px;
    flex: 1;
}

.news-card__link {
    color: var(--color-secondary);
    font-weight: 500;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.news-card__link:hover {
    gap: 10px;
    color: var(--color-primary);
}

/* ==========================================================================
   12. گالری (Gallery)
   ========================================================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: var(--radius);
    cursor: pointer;
    background-color: var(--color-bg-alt);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item::after {
    content: '\f00e';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(26, 35, 126, 0.7);
    color: var(--color-secondary);
    font-size: 2rem;
    opacity: 0;
    transition: opacity var(--transition);
}

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

.gallery-item:hover img {
    transform: scale(1.1);
}

/* لایت‌باکس */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 2000;
    padding: 20px;
}

.lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

.lightbox__img {
    max-width: 90%;
    max-height: 85vh;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.lightbox__close,
.lightbox__nav {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition);
}

.lightbox__close:hover,
.lightbox__nav:hover {
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
}

.lightbox__close {
    top: 24px;
    left: 24px;
}

.lightbox__nav--prev {
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__nav--next {
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
}

/* ==========================================================================
   13. تماس سریع (Quick Contact)
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap);
}

.contact-card {
    text-align: center;
    background-color: var(--color-white);
    padding: 36px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition);
}

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

.contact-card__icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(201, 168, 76, 0.15);
    border-radius: 50%;
    color: var(--color-secondary);
    font-size: 1.6rem;
}

.contact-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.contact-card p,
.contact-card a {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ==========================================================================
   14. فوتر (Footer)
   ========================================================================== */
.footer {
    background-color: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.8);
    padding-top: 60px;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: var(--gap);
    padding-bottom: 40px;
}

/* پیوندهای مرتبط (لوگوهای دایره‌ای نهادها) */
.footer__partners {
    border-top: 1px solid rgba(255, 255, 255, 0.10);
    padding-block: 28px;
}

.footer__partners-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-white);
    text-align: center;
    margin-bottom: 22px;
}

.footer__partners-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 18px;
}

.footer__partner {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 66px;
    height: 66px;
    border-radius: 50%;
    background: #2026516b;
    border: 2px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    flex-shrink: 0;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.footer__partner:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.35);
    border-color: var(--color-secondary);
}

.footer__partner img {
    width: 76%;
    height: 76%;
    object-fit: contain;
}

.footer__title {
    color: var(--color-white);
    font-size: 1.15rem;
    margin-bottom: 22px;
    position: relative;
    padding-bottom: 12px;
}

.footer__title::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 40px;
    height: 3px;
    background-color: var(--color-secondary);
    border-radius: 2px;
}

.footer__about .logo {
    margin-bottom: 18px;
}

.footer__about .logo__title {
    color: var(--color-white);
}

.footer__about p {
    font-size: 0.92rem;
    line-height: 1.9;
    margin-bottom: 20px;
}

.footer__links li {
    margin-bottom: 12px;
}

.footer__links a {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition);
}

.footer__links a:hover {
    color: var(--color-secondary);
    padding-inline-start: 6px;
}

.footer__links i {
    font-size: 0.7rem;
    color: var(--color-secondary);
}

.footer__contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.92rem;
}

.footer__contact i {
    color: var(--color-secondary);
    margin-top: 5px;
    flex-shrink: 0;
}

.footer__social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.footer__social a {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    color: var(--color-white);
    transition: all var(--transition);
}

.footer__social a:hover {
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
    transform: translateY(-3px);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-block: 22px;
    text-align: center;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer__bottom a {
    color: var(--color-secondary);
}

/* ==========================================================================
   15. دکمه بازگشت به بالا (Back to Top)
   ========================================================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 900;
    box-shadow: var(--shadow-md);
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-accent);
    transform: translateY(-4px);
}

/* ==========================================================================
   16. بنر صفحات داخلی (Page Banner)
   ========================================================================== */
.page-banner {
    margin-top: var(--header-height);
    padding-block: 60px;
    background:
        linear-gradient(135deg, rgba(13, 20, 66, 0.92), rgba(26, 35, 126, 0.85)),
        url('../assets/images/hero/banner-bg.svg') center/cover no-repeat;
    color: var(--color-white);
    text-align: center;
}

.page-banner h1 {
    color: var(--color-white);
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    margin-bottom: 14px;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a {
    color: var(--color-secondary);
}

.breadcrumb span {
    color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   17. اجزای صفحات داخلی
   ========================================================================== */
/* بلوک دوستونه متن/تصویر */
.media-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.media-block--reverse {
    direction: ltr;
}

.media-block--reverse>* {
    direction: rtl;
}

.media-block__img img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    width: 100%;
}

.media-block__content h2 {
    font-size: var(--fs-h2);
    margin-bottom: 20px;
}

.media-block__content p {
    color: var(--color-text-light);
    margin-bottom: 16px;
}

/* لیست با تیک */
.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    color: var(--color-text-light);
}

.check-list i {
    color: var(--color-secondary);
    margin-top: 6px;
    flex-shrink: 0;
}

/* کارت محتوای عمومی */
.info-card {
    background-color: var(--color-white);
    padding: 36px 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--color-secondary);
    height: 100%;
}

.info-card__icon {
    font-size: 2.5rem;
    color: var(--color-secondary);
    margin-bottom: 18px;
}

.info-card h3 {
    font-size: var(--fs-h3);
    margin-bottom: 14px;
}

.info-card p {
    color: var(--color-text-light);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

/* فرم تماس */
.contact-form {
    background-color: var(--color-white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-text);
}

.form-group label .req {
    color: #e53935;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-main);
    font-size: 1rem;
    color: var(--color-text);
    background-color: var(--color-bg-alt);
    border: 2px solid transparent;
    border-radius: var(--radius);
    transition: all var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-secondary);
    background-color: var(--color-white);
}

.form-control.is-invalid {
    border-color: #e53935;
    background-color: #fdecea;
}

textarea.form-control {
    resize: vertical;
    min-height: 140px;
}

.form-error {
    display: none;
    color: #e53935;
    font-size: 0.82rem;
    margin-top: 6px;
}

.form-error.is-shown {
    display: block;
}

.form-message {
    display: none;
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 22px;
    font-size: 0.95rem;
}

.form-message.is-shown {
    display: block;
}

.form-message--success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

.form-message--error {
    background-color: #fdecea;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

/* نقشه / اطلاعات تماس صفحه تماس */
.map-embed {
    width: 100%;
    height: 100%;
    min-height: 400px;
    border: none;
    border-radius: var(--radius);
    filter: grayscale(0.2);
}

/* جدول آمار بازار */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table th,
.data-table td {
    padding: 16px 20px;
    text-align: right;
    border-bottom: 1px solid var(--color-border);
}

.data-table thead {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.data-table th {
    font-weight: 500;
}

.data-table tbody tr:hover {
    background-color: var(--color-bg-alt);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* ==========================================================================
   18. سه ستون محصول رنگی (Product Pillars) - مطابق نمونه طراحی
   ========================================================================== */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

.pillar {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    background-color: var(--color-white);
    transition: transform var(--transition), box-shadow var(--transition);
}

.pillar:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.pillar__head {
    padding: 28px 24px;
    text-align: center;
    color: var(--color-white);
}

.pillar__head h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: 6px;
}

.pillar__head p {
    font-size: 0.9rem;
    opacity: 0.92;
}

.pillar__head .icon {
    font-size: 2.4rem;
    margin-bottom: 12px;
    display: block;
}

.pillar__body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.pillar__subtitle {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pillar__list {
    margin-bottom: 4px;
}

.pillar__list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 9px 0;
    font-size: 0.92rem;
    color: var(--color-text-light);
    border-bottom: 1px dashed var(--color-border);
}

.pillar__list li:last-child {
    border-bottom: none;
}

.pillar__list i {
    margin-top: 5px;
    flex-shrink: 0;
}

.pillar__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.pillar__tag {
    font-size: 0.78rem;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background-color: var(--color-bg-alt);
    color: var(--color-text-light);
}

/* تم رنگی هر ستون */
.pillar--gem .pillar__head {
    background: linear-gradient(135deg, #2e9e6b, #1f7a51);
}

.pillar--metal .pillar__head {
    background: linear-gradient(135deg, #8e5fc4, #6d3fa0);
}

.pillar--jewel .pillar__head {
    background: linear-gradient(135deg, #d4af37, #b8860b);
}

.pillar--gem .pillar__list i,
.pillar--gem .pillar__subtitle i {
    color: var(--pillar-gem);
}

.pillar--metal .pillar__list i,
.pillar--metal .pillar__subtitle i {
    color: var(--pillar-metal);
}

.pillar--jewel .pillar__list i,
.pillar--jewel .pillar__subtitle i {
    color: var(--pillar-jewel);
}

.pillar--gem .pillar__tag {
    background: var(--pillar-gem-soft);
    color: #1f7a51;
}

.pillar--metal .pillar__tag {
    background: var(--pillar-metal-soft);
    color: #6d3fa0;
}

.pillar--jewel .pillar__tag {
    background: var(--pillar-jewel-soft);
    color: #9c6f12;
}

/* ==========================================================================
   19. باکس معرفی نقش پایانه (Role / Export Hub)
   ========================================================================== */
.role-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.role-item {
    text-align: center;
    padding: 24px 14px;
    background-color: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition);
}

.role-item:hover {
    transform: translateY(-5px);
}

.role-item__icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-secondary);
    font-size: 1.4rem;
}

.role-item h4 {
    font-size: 0.98rem;
    color: var(--color-primary);
}

/* ==========================================================================
   20. دانشنامه - شبکه سنگ‌ها (Stone Cards)
   ========================================================================== */
.stones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 18px;
}

.stone-card {
    background-color: var(--color-white);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border-top: 3px solid var(--color-secondary);
    transition: transform var(--transition), box-shadow var(--transition);
}

.stone-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stone-card__name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.stone-card__latin {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    direction: ltr;
    text-align: left;
}

.stone-card__row {
    display: flex;
    justify-content: space-between;
    font-size: 0.84rem;
    padding: 5px 0;
    border-top: 1px dashed var(--color-border);
}

.stone-card__row span:first-child {
    color: var(--color-text-muted);
}

.stone-card__row span:last-child {
    color: var(--color-text);
    font-weight: 500;
}

/* فیلتر دسته‌بندی دانشنامه */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 36px;
}

.filter-btn {
    padding: 8px 20px;
    border: 2px solid var(--color-border);
    background-color: var(--color-white);
    color: var(--color-text-light);
    border-radius: var(--radius-pill);
    font-family: var(--font-main);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
}

.filter-btn:hover {
    border-color: var(--color-secondary);
    color: var(--color-primary);
}

.filter-btn.is-active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.stone-card.is-hidden {
    display: none;
}

/* ==========================================================================
   21. آکوردئون سوالات متداول (FAQ)
   ========================================================================== */
.faq-list {
    max-width: 840px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: right;
    background: none;
    border: none;
    padding: 20px 24px;
    font-family: var(--font-main);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.faq-question i {
    color: var(--color-secondary);
    transition: transform var(--transition);
    flex-shrink: 0;
}

.faq-item.is-open .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
}

.faq-answer__inner {
    padding: 0 24px 22px;
    color: var(--color-text-light);
    line-height: 2;
}

/* ==========================================================================
   22. قوانین و مقررات (Terms) و فرصت همکاری
   ========================================================================== */
.legal-content h2 {
    font-size: 1.4rem;
    margin: 36px 0 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-bg-alt);
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content p,
.legal-content li {
    color: var(--color-text-light);
    margin-bottom: 12px;
}

.legal-content ul {
    padding-inline-start: 8px;
}

.legal-content ul li {
    position: relative;
    padding-inline-start: 22px;
}

.legal-content ul li::before {
    content: '\f0da';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 0;
    color: var(--color-secondary);
}

/* کارت مدل همکاری */
.coop-card {
    background-color: var(--color-white);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    border-bottom: 4px solid var(--color-secondary);
    transition: transform var(--transition), box-shadow var(--transition);
    height: 100%;
}

.coop-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.coop-card__num {
    width: 54px;
    height: 54px;
    margin: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    color: var(--color-primary-dark);
    font-size: 1.4rem;
    font-weight: 700;
}

.coop-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.coop-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* نقل‌قول رهبری / متن شاخص */
.quote-box {
    max-width: 900px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: var(--color-white);
    padding: 40px 50px;
    border-radius: var(--radius);
    text-align: center;
    position: relative;
}

.quote-box::before {
    content: '\f10d';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 2.4rem;
    color: var(--color-secondary);
    opacity: 0.5;
    display: block;
    margin-bottom: 14px;
}

.quote-box p {
    font-size: 1.2rem;
    line-height: 2.1;
    margin-bottom: 14px;
}

.quote-box cite {
    color: var(--color-secondary);
    font-style: normal;
    font-size: 0.95rem;
}

/* ==========================================================================
   23. نقل‌قول مقام معظم رهبری (با عکس و پرچم) و معرفی شخصیت
   ========================================================================== */
.leader-quote {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 36px;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    border-radius: var(--radius);
    padding: 40px;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

/* نوار پرچم ایران در لبهٔ بالایی */
.leader-quote::before {
    content: '';
    position: absolute;
    top: 0;
    inset-inline: 0;
    height: 6px;
    background: linear-gradient(90deg, #239f40 0 33.3%, #ffffff 33.3% 66.6%, #da0000 66.6% 100%);
}

.leader-quote__media {
    text-align: center;
}

.leader-quote__photo {
    width: 170px;
    height: 210px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 3px solid var(--color-secondary);
    box-shadow: var(--shadow-md);
    margin: 0 auto 14px;
}

.leader-quote__flag {
    width: 90px;
    height: auto;
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
    margin: 0 auto;
}

.leader-quote__caption {
    display: block;
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--color-secondary);
    font-weight: 700;
}

.leader-quote__body p {
    font-size: 1.15rem;
    line-height: 2.2;
    margin-bottom: 16px;
    position: relative;
}

.leader-quote__body p::before {
    content: '\f10e';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--color-secondary);
    opacity: 0.6;
    margin-inline-end: 8px;
}

.leader-quote__date {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* معرفی شخصیت (دکتر زنگنه) */
.person-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 36px;
    align-items: center;
    background-color: var(--color-white);
    border-radius: var(--radius);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border-inline-start: 5px solid var(--color-secondary);
}

.person-card__photo {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--color-bg-alt);
    box-shadow: var(--shadow-md);
    margin: 0 auto;
}

.person-card__name {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.person-card__role {
    color: var(--color-secondary);
    font-weight: 500;
    margin-bottom: 16px;
    display: block;
}

.person-card__body p {
    color: var(--color-text-light);
    line-height: 2;
    position: relative;
}

/* ==========================================================================
   24. تم روشن (Light theme) - فقط هدر را روشن می‌کند
   ========================================================================== */
.theme-light {
    --color-header-top: #ffffff;
    --color-header-menu: #f3f4f8;
}

.theme-light .header {
    box-shadow: var(--shadow-sm);
}

.theme-light .header__top {
    border-bottom-color: var(--color-border);
}

.theme-light .logo__title {
    color: var(--color-primary);
}

.theme-light .logo__subtitle {
    color: var(--color-text-muted);
}

.theme-light .nav__link {
    color: var(--color-text);
}

.theme-light .nav__link:hover,
.theme-light .nav__item:hover>.nav__link,
.theme-light .nav__link.is-active {
    color: var(--color-primary);
    background-color: rgba(26, 35, 126, 0.06);
}

.theme-light .tool-btn {
    background: var(--color-bg-alt);
    color: var(--color-text);
    border-color: var(--color-border);
}

.theme-light .tool-btn:hover {
    background: rgba(201, 168, 76, 0.18);
    color: #9c6f12;
}

.theme-light .nav__submenu {
    background-color: #fff;
    border-color: var(--color-border);
}

.theme-light .nav__submenu a {
    color: var(--color-text);
}

.theme-light .menu-toggle span {
    background-color: var(--color-primary);
}

/* خوشنویسی: در تم روشن نسخهٔ تیره/طلایی روی پس‌زمینهٔ روشن کم‌رنگ است؛ کمی پررنگ‌تر */
.theme-light .header__calligraphy img {
    filter: brightness(0.6) saturate(1.3);
}

.logo__img {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    object-fit: cover;
}