/* ==========================================================================
   سایت عمومی آموزشگاه رهام — چیدمان و بخش‌ها
   پایه (رنگ، فونت، دکمه، فرم، ...) در app.css است. طراحی از موبایل به دسکتاپ.
   ========================================================================== */

:root {
    --header-h: 68px;
    --mnav-h: 64px;
    --hero-grad: radial-gradient(120% 120% at 100% 0%, #3b82f6 0%, #1d4ed8 38%, #1e1b4b 100%);
}

body.site { background: #fff; }
@media (max-width: 991px) { body.site { padding-bottom: calc(var(--mnav-h) + env(safe-area-inset-bottom)); } }
body.site.menu-open { overflow: hidden; }

.container { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: 16px; }
@media (min-width: 768px) { .container { padding-inline: 24px; } }
/* نمایشگر بزرگ: محتوا یک ستون باریک وسط صفحه نماند */
@media (min-width: 1440px) { .container { max-width: 1320px; } }

/* ============================ نوار اطلاعات بالای سایت (دسکتاپ) ============================ */
.info-bar { display: none; background: #0f172a; color: #cbd5e1; font-size: .82rem; }
.info-bar .container { display: flex; justify-content: space-between; gap: 1rem; min-height: 38px; align-items: center; }
.info-bar span, .info-bar a { display: inline-flex; align-items: center; gap: .4rem; color: #cbd5e1; }
.info-bar a:hover { color: #fff; }
.info-bar .group { display: flex; gap: 1.4rem; }
@media (min-width: 992px) { .info-bar { display: block; } }

/* ============================ هدر ============================ */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: saturate(1.6) blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-color: var(--c-border-2); box-shadow: 0 6px 24px -12px rgba(15, 23, 42, .18); }
.header-inner { display: flex; align-items: center; gap: 1rem; height: var(--header-h); }
.logo { display: flex; align-items: center; gap: .6rem; color: var(--c-text); font-weight: 800; flex: none; }
.logo:hover { color: var(--c-text); }
.logo img { height: 42px; width: auto; }
.logo span { font-size: 1.1rem; line-height: 1.3; }
.logo small { display: block; font-size: .7rem; font-weight: 400; color: var(--c-muted); }

.main-nav { display: none; margin-inline-start: auto; }
.main-nav ul { display: flex; gap: .2rem; list-style: none; margin: 0; padding: 0; }
.main-nav a {
    display: block; padding: .5rem .85rem; border-radius: 10px;
    color: var(--c-text-2); font-weight: 700; font-size: .95rem;
}
.main-nav a:hover { background: var(--c-surface-2); color: var(--c-text); }
.main-nav a.active { color: var(--c-primary); background: var(--c-primary-50); }
.header-cta { display: none; gap: .5rem; }
.nav-toggle {
    margin-inline-start: auto;
    width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--c-border);
    background: var(--c-surface); color: var(--c-text); display: grid; place-items: center;
}
.nav-toggle .ico { width: 22px; height: 22px; }
@media (min-width: 992px) {
    .main-nav, .header-cta { display: flex; }
    .nav-toggle { display: none; }
    .header-cta { margin-inline-start: .5rem; }
}

/* منوی موبایل */
.drawer-backdrop { position: fixed; inset: 0; z-index: 60; background: rgba(15, 23, 42, .45); opacity: 0; visibility: hidden; transition: .25s; }
.drawer {
    position: fixed; inset-block: 0; right: 0; z-index: 61;
    width: min(340px, 88vw);
    display: flex; flex-direction: column;
    background: #fff; box-shadow: var(--shadow-lg);
    transform: translateX(105%); transition: transform .28s var(--ease);
}
body.menu-open .drawer { transform: none; }
body.menu-open .drawer-backdrop { opacity: 1; visibility: visible; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 1rem; border-bottom: 1px solid var(--c-border-2); }
.drawer-head button { width: 40px; height: 40px; border-radius: 10px; border: 0; background: var(--c-surface-2); display: grid; place-items: center; }
.drawer nav { flex: 1; overflow-y: auto; padding: .6rem; }
.drawer nav a {
    display: flex; align-items: center; gap: .75rem;
    min-height: 50px; padding: .4rem .8rem; border-radius: 12px;
    color: var(--c-text); font-weight: 700;
}
.drawer nav a .ico { color: var(--c-muted); }
.drawer nav a.active { background: var(--c-primary-50); color: var(--c-primary-700); }
.drawer nav a.active .ico { color: var(--c-primary); }
.drawer-foot { padding: 1rem; border-top: 1px solid var(--c-border-2); display: grid; gap: .5rem; }
.drawer-contact { display: grid; gap: .35rem; margin-top: .4rem; color: var(--c-muted); font-size: .85rem; }
.drawer-contact a, .drawer-contact span { display: flex; align-items: center; gap: .45rem; color: var(--c-muted); }
@media (min-width: 992px) { .drawer, .drawer-backdrop { display: none; } }

/* ============================ عنوان بخش‌ها ============================ */
.section { padding: 3.2rem 0; }
@media (min-width: 992px) { .section { padding: 5rem 0; } }
.section-alt { background: var(--c-bg); }
.section-head { max-width: 680px; margin: 0 auto 2rem; text-align: center; }
.eyebrow {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .25rem .8rem; margin-bottom: .7rem; border-radius: var(--radius-pill);
    background: var(--c-primary-50); color: var(--c-primary-600); font-size: .8rem; font-weight: 800;
}
.section-head h2, .h2 { font-size: clamp(1.45rem, 1.2rem + 1.1vw, 2.1rem); line-height: 1.5; margin-bottom: .6rem; }
.section-head h2 span, .h2 span { color: var(--c-primary); }
.section-head p { color: var(--c-muted); margin: 0; font-size: 1rem; }
.section-foot { text-align: center; margin-top: 2rem; }

/* ============================ هیرو ============================ */
.hero { position: relative; overflow: hidden; color: #fff; background: var(--hero-grad); }
.hero::before {
    content: ""; position: absolute; inset: 0; opacity: .12; pointer-events: none;
    background-image: radial-gradient(#fff 1px, transparent 1px); background-size: 22px 22px;
    mask-image: linear-gradient(to bottom, #000, transparent 85%);
}
.hero-grid { position: relative; display: grid; gap: 2rem; padding-block: 2.6rem 3rem; align-items: center; }
@media (min-width: 992px) { .hero-grid { grid-template-columns: 1.1fr .9fr; padding-block: 4.5rem 5rem; gap: 3rem; } }
.hero .eyebrow { background: rgba(255, 255, 255, .14); color: #fff; }
.hero h1 { color: #fff; font-size: clamp(1.65rem, 1.2rem + 2.1vw, 3rem); line-height: 1.45; margin-bottom: .8rem; }
.hero h1 .accent { display: block; color: #fde68a; }
.hero p.lead { color: rgba(255, 255, 255, .85); font-size: clamp(.97rem, .92rem + .2vw, 1.12rem); max-width: 60ch; margin-bottom: 1.4rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .6rem; }
.hero-actions .btn { min-height: 50px; padding-inline: 1.4rem; font-size: 1rem; }
.btn-white { background: #fff; color: var(--c-primary-700); }
.btn-white:hover { background: #f1f5f9; color: var(--c-primary-700); }
.btn-outline-white { background: transparent; border-color: rgba(255, 255, 255, .45); color: #fff; }
.btn-outline-white:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.hero-points { display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; margin-top: 1.4rem; color: rgba(255, 255, 255, .88); font-size: .9rem; }
.hero-points span { display: inline-flex; align-items: center; gap: .35rem; }
.hero-points .ico { color: #86efac; }

.hero-visual { position: relative; }
.hero-visual .frame {
    position: relative; border-radius: 28px; overflow: hidden; aspect-ratio: 4 / 3;
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .5); border: 6px solid rgba(255, 255, 255, .12);
}
.hero-visual .frame img { width: 100%; height: 100%; object-fit: cover; }

/* ===== اسلایدشو تصاویر هیرو =====
   تصاویر روی هم قرار می‌گیرند و با محو شدن عوض می‌شوند؛ تصویر فعال
   آرام‌آرام بزرگ می‌شود تا تصویر ثابت به نظر نرسد. */
.hero-slides img {
    position: absolute; inset: 0;
    opacity: 0; transform: scale(1.06);
    transition: opacity .9s ease;
    will-change: opacity;
}
.hero-slides img.is-active {
    opacity: 1;
    animation: heroZoom 9s ease-out forwards;
    z-index: 1;
}
@keyframes heroZoom {
    from { transform: scale(1.02); }
    to { transform: scale(1.1); }
}

/* نقطه‌های پایین اسلایدشو برای عوض کردن دستی تصویر */
.hero-dots {
    position: absolute; z-index: 2; inset-inline: 0; bottom: .7rem;
    display: flex; justify-content: center; gap: .4rem;
}
.hero-dots button {
    width: 9px; height: 9px; padding: 0; border: 0; border-radius: 999px;
    background: rgba(255, 255, 255, .5); cursor: pointer;
    transition: width .25s, background .25s;
}
.hero-dots button[aria-current="true"] { width: 26px; background: #fff; }
.hero-dots button:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
@media (hover: hover) { .hero-dots button:hover { background: rgba(255, 255, 255, .85); } }

/* روی صفحه‌های کوچک نقطه‌ها بزرگ‌تر تا با انگشت قابل زدن باشند */
@media (max-width: 600px) { .hero-dots button { height: 11px; width: 11px; } .hero-dots button[aria-current="true"] { width: 24px; } }
.float-card {
    position: absolute; display: flex; align-items: center; gap: .6rem;
    padding: .6rem .9rem; border-radius: 16px; background: #fff; color: var(--c-text);
    box-shadow: var(--shadow-lg); font-size: .85rem; font-weight: 700;
}
.float-card strong { display: block; font-size: 1.1rem; line-height: 1.3; }
.float-card small { color: var(--c-muted); font-weight: 400; }
.float-card .ico-wrap { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--c-primary-50); color: var(--c-primary); }
.float-card.a { bottom: -14px; right: -8px; }
.float-card.b { top: 18px; left: -10px; }
.float-card.b .ico-wrap { background: var(--c-success-50); color: var(--c-success); }
@media (max-width: 991px) { .hero-visual { width: 100%; max-width: 520px; margin-inline: auto; } .float-card.b { left: 6px; } .float-card.a { right: 6px; } }

/* ============================ آمار ============================ */
.stats-band { position: relative; z-index: 2; margin-top: -2rem; }
.stats-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: .1rem;
    background: var(--c-border-2); border-radius: var(--radius-xl); overflow: hidden;
    box-shadow: var(--shadow-lg);
}
@media (min-width: 768px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat { background: #fff; padding: 1.2rem .8rem; text-align: center; }
.stat .num { display: block; font-size: 1.7rem; font-weight: 800; color: var(--c-primary-700); line-height: 1.3; direction: ltr; }
.stat .lbl { color: var(--c-muted); font-size: .88rem; font-weight: 700; }
@media (min-width: 768px) { .stat { padding: 1.6rem 1rem; } .stat .num { font-size: 2.2rem; } }

/* ============================ کارت ویژگی و دسته‌بندی ============================ */
.feature-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 600px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .feature-grid { grid-template-columns: repeat(3, 1fr); } }
.feature {
    padding: 1.4rem; border-radius: var(--radius-lg);
    background: #fff; border: 1px solid var(--c-border-2);
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--c-primary-100); }
.feature .ico-box {
    width: 52px; height: 52px; border-radius: 16px; margin-bottom: 1rem;
    display: grid; place-items: center; background: var(--c-primary-50); color: var(--c-primary);
}
.feature .ico-box .ico { width: 26px; height: 26px; }
.feature h3 { font-size: 1.08rem; margin-bottom: .4rem; }
.feature p { color: var(--c-muted); margin: 0; font-size: .95rem; }
.feature.c2 .ico-box { background: var(--c-success-50); color: var(--c-success); }
.feature.c3 .ico-box { background: var(--c-accent-50); color: #b45309; }
.feature.c4 .ico-box { background: #f5f3ff; color: #7c3aed; }
.feature.c5 .ico-box { background: var(--c-info-50); color: var(--c-info); }
.feature.c6 .ico-box { background: #fdf2f8; color: #db2777; }

.cat-grid { display: grid; gap: .75rem; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px) { .cat-grid { grid-template-columns: repeat(3, 1fr); gap: 1rem; } }
@media (min-width: 1100px) { .cat-grid { grid-template-columns: repeat(4, 1fr); } }
.cat {
    display: flex; flex-direction: column; gap: .5rem;
    padding: 1.1rem; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--c-border-2);
    color: var(--c-text); transition: .2s;
}
.cat:hover { border-color: var(--c-primary); box-shadow: var(--shadow); color: var(--c-text); }
.cat .ico { width: 30px; height: 30px; color: var(--c-primary); }
.cat strong { font-size: 1rem; }
.cat small { color: var(--c-muted); line-height: 1.7; }

/* ============================ کارت دوره ============================ */
.course-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 600px) { .course-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .course-grid { grid-template-columns: repeat(3, 1fr); gap: 1.4rem; } }
@media (min-width: 1440px) { .course-grid { grid-template-columns: repeat(4, 1fr); } }
.course-card {
    display: flex; flex-direction: column; overflow: hidden;
    border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--c-border-2);
    box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s;
}
.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.course-card .cover { position: relative; display: block; aspect-ratio: 16 / 10; background: var(--c-primary-50); overflow: hidden; }
.course-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.course-card:hover .cover img { transform: scale(1.04); }
.course-card .dept {
    position: absolute; top: .7rem; right: .7rem;
    padding: .15rem .7rem; border-radius: var(--radius-pill);
    background: rgba(15, 23, 42, .72); color: #fff; font-size: .75rem; font-weight: 700; backdrop-filter: blur(4px);
}
.course-card .body { display: flex; flex-direction: column; gap: .6rem; flex: 1; padding: 1rem 1.1rem 1.1rem; }
.course-card h3 { font-size: 1.05rem; margin: 0; line-height: 1.6; }
.course-card h3 a { color: var(--c-text); }
.course-card h3 a:hover { color: var(--c-primary); }
.course-meta { display: grid; gap: .3rem; list-style: none; margin: 0; padding: 0; color: var(--c-muted); font-size: .88rem; }
.course-meta li { display: flex; align-items: center; gap: .45rem; }
.course-meta .ico { color: var(--c-primary); width: 1em; height: 1em; }
.course-foot {
    display: flex; align-items: center; justify-content: space-between; gap: .6rem;
    margin-top: auto; padding-top: .8rem; border-top: 1px dashed var(--c-border-2);
}
.price { font-weight: 800; font-size: 1.1rem; color: var(--c-text); white-space: nowrap; }
.price small { font-weight: 400; color: var(--c-muted); font-size: .78rem; }
.course-foot .actions { display: flex; gap: .4rem; }

/* ردیف افقی قابل کشیدن (موبایل) */
.scroller {
    display: grid; grid-auto-flow: column; grid-auto-columns: minmax(260px, 78%);
    gap: 1rem; overflow-x: auto; scroll-snap-type: x mandatory;
    padding: .3rem 16px 1rem; margin-inline: -16px; scrollbar-width: thin;
}
.scroller > * { scroll-snap-align: start; }
@media (min-width: 768px) { .scroller { grid-auto-columns: minmax(280px, 40%); } }
@media (min-width: 1100px) { .scroller { grid-auto-columns: calc((100% - 3rem) / 4); margin-inline: 0; padding-inline: 0; } }

/* ============================ درباره (دو ستونه با تصویر) ============================ */
.split-media { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 992px) { .split-media { grid-template-columns: 1fr 1fr; gap: 3.5rem; } }
.media-frame { position: relative; border-radius: 26px; overflow: hidden; aspect-ratio: 4 / 3; box-shadow: var(--shadow-lg); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame .play {
    position: absolute; inset: 0; margin: auto; width: 76px; height: 76px; border-radius: 50%;
    display: grid; place-items: center; background: rgba(255, 255, 255, .92); color: var(--c-primary);
    box-shadow: 0 0 0 12px rgba(255, 255, 255, .25);
}
.media-frame .play .ico { width: 28px; height: 28px; fill: currentColor; margin-right: -4px; }
.check-list { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: .55rem; }
@media (min-width: 600px) { .check-list.cols-2 { grid-template-columns: 1fr 1fr; } }
.check-list li { display: flex; align-items: center; gap: .55rem; font-weight: 700; }
.check-list .ico { color: var(--c-success); flex: none; }

/* ============================ بخش محلی و سؤالات متداول ============================ */
.loc-grid { display: grid; gap: 1.6rem; align-items: start; }
@media (min-width: 992px) { .loc-grid { grid-template-columns: 1.2fr .8fr; gap: 2.5rem; } }
.prose-lite p { color: var(--c-text-2); line-height: 2.1; }
.prose-lite h3 { font-size: 1.12rem; margin: 1.4rem 0 .5rem; }
.info-card { padding: 1.4rem; border-radius: var(--radius-xl); background: #fff; border: 1px solid var(--c-border-2); box-shadow: var(--shadow); }
@media (min-width: 992px) { .info-card { position: sticky; top: calc(var(--header-h) + 1rem); } }
.info-card h3 { font-size: 1.1rem; }
.info-list-lite { list-style: none; margin: 0 0 1.2rem; padding: 0; }
.info-list-lite li { display: flex; gap: .7rem; padding: .7rem 0; border-bottom: 1px solid var(--c-border-2); line-height: 1.9; color: var(--c-text-2); }
.info-list-lite li:last-child { border-bottom: 0; }
.info-list-lite .ico { color: var(--c-primary); margin-top: .35rem; }

.faq { display: grid; gap: .6rem; margin-top: 1.4rem; }
.faq details { border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--c-border-2); transition: border-color .2s, box-shadow .2s; }
.faq details[open] { border-color: var(--c-primary-100); box-shadow: var(--shadow-sm); }
.faq summary {
    display: flex; justify-content: space-between; align-items: center; gap: 1rem;
    padding: 1rem 1.1rem; cursor: pointer; font-weight: 800; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .ico { flex: none; color: var(--c-primary); transition: transform .2s; }
.faq details[open] summary .ico { transform: rotate(180deg); }
.faq details p { margin: 0; padding: 0 1.1rem 1.1rem; color: var(--c-text-2); line-height: 2; }

/* ============================ فراخوان ============================ */
.cta-band {
    position: relative; overflow: hidden;
    display: grid; gap: 1.2rem; align-items: center;
    padding: 2rem 1.4rem; border-radius: 28px; color: #fff; background: var(--hero-grad);
    box-shadow: 0 30px 60px -30px rgba(29, 78, 216, .8);
}
.cta-band::after { content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: rgba(255, 255, 255, .07); left: -60px; bottom: -120px; }
.cta-band h2 { color: #fff; font-size: 1.45rem; margin: 0 0 .4rem; }
.cta-band p { color: rgba(255, 255, 255, .85); margin: 0; }
.cta-band .hero-actions { position: relative; z-index: 1; }
@media (min-width: 992px) { .cta-band { grid-template-columns: 1fr auto; padding: 2.6rem 3rem; } .cta-band h2 { font-size: 1.8rem; } }

/* ============================ سربرگ صفحات داخلی ============================ */
.page-hero { position: relative; overflow: hidden; color: #fff; background: var(--hero-grad); }
.page-hero::before {
    content: ""; position: absolute; inset: 0; opacity: .1;
    background-image: radial-gradient(#fff 1px, transparent 1px); background-size: 22px 22px;
}
.page-hero .container { position: relative; padding-block: 2rem 2.2rem; }
@media (min-width: 992px) { .page-hero .container { padding-block: 3rem 3.2rem; } }
.page-hero h1 { color: #fff; font-size: clamp(1.55rem, 1.3rem + 1.1vw, 2.3rem); margin: 0 0 .4rem; }

.page-hero p { color: rgba(255, 255, 255, .85); margin: .4rem 0 0; max-width: 680px; }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem; list-style: none; margin: 0 0 .6rem; padding: 0; font-size: .85rem; color: rgba(255, 255, 255, .75); }
.crumbs a { color: rgba(255, 255, 255, .9); }
.crumbs a:hover { color: #fff; }
.crumbs .ico { width: .9em; height: .9em; opacity: .7; }

/* ============================ فیلتر ============================ */
.filter-chips { display: flex; gap: .5rem; overflow-x: auto; padding-bottom: .4rem; margin-bottom: 1.2rem; scrollbar-width: none; }
.filter-chips::-webkit-scrollbar { display: none; }
.filter-chips button {
    flex: none; min-height: 40px; padding: .3rem 1rem; border-radius: var(--radius-pill);
    border: 1px solid var(--c-border); background: #fff; color: var(--c-text-2); font-weight: 700; font-size: .9rem;
}
.filter-chips button.active { background: var(--c-text); border-color: var(--c-text); color: #fff; }
.search-box { position: relative; margin-bottom: 1rem; }
.search-box .ico { position: absolute; right: .9rem; top: 50%; transform: translateY(-50%); color: var(--c-muted); }
.search-box input { padding-right: 2.6rem !important; }

/* ============================ صفحه دوره ============================ */
.course-layout { display: grid; gap: 1.6rem; align-items: start; }
@media (min-width: 992px) { .course-layout { grid-template-columns: minmax(0, 1fr) 360px; gap: 2.2rem; } }
.course-cover { border-radius: var(--radius-xl); overflow: hidden; aspect-ratio: 16 / 9; background: var(--c-primary-50); box-shadow: var(--shadow); }
.course-cover img { width: 100%; height: 100%; object-fit: cover; }
.fact-chips { display: flex; flex-wrap: wrap; gap: .45rem; margin: 1rem 0 1.4rem; }
.fact-chips .chip { font-size: .85rem; }
.buy-card { padding: 1.3rem; border-radius: var(--radius-xl); background: #fff; border: 1px solid var(--c-border-2); box-shadow: var(--shadow-lg); }
@media (min-width: 992px) { .buy-card { position: sticky; top: calc(var(--header-h) + 1rem); } }
.buy-card .price { font-size: 1.6rem; display: block; margin: .2rem 0 1rem; }
.buy-card .info-list-lite { margin: 1rem 0 0; }
.buy-card .note { margin: .6rem 0 0; color: var(--c-muted); font-size: .85rem; text-align: center; }

/* نوار ثبت‌نام ثابت پایین صفحه دوره (موبایل) */
.course-sticky {
    position: fixed; inset-inline: 0; bottom: calc(var(--mnav-h) + env(safe-area-inset-bottom)); z-index: 40;
    display: flex; align-items: center; justify-content: space-between; gap: .8rem;
    padding: .6rem 16px; background: rgba(255, 255, 255, .97); backdrop-filter: blur(10px);
    border-top: 1px solid var(--c-border-2); box-shadow: 0 -8px 24px -12px rgba(15, 23, 42, .25);
}
.course-sticky .price { font-size: 1.05rem; }
@media (min-width: 992px) { .course-sticky { display: none; } }
body.has-sticky { padding-bottom: calc(var(--mnav-h) + 72px + env(safe-area-inset-bottom)); }
@media (min-width: 992px) { body.has-sticky { padding-bottom: 0; } }

/* محتوای ویرایشگر (توضیحات کامل دوره) و متن‌های بلند */
.prose, .ck-content { line-height: 2.05; color: var(--c-text-2); font-size: 1rem; overflow-wrap: anywhere; }
.prose h2, .ck-content h2 { font-size: 1.3rem; margin: 1.8rem 0 .7rem; }
.prose h3, .ck-content h3 { font-size: 1.12rem; margin: 1.5rem 0 .6rem; }
.prose ul, .prose ol, .ck-content ul, .ck-content ol { padding-right: 1.4rem; }
.prose li, .ck-content li { margin-bottom: .35rem; }
.ck-content img { max-width: 100%; height: auto; border-radius: 12px; }
.ck-content figure.image { margin: 1.2rem auto; text-align: center; }
.ck-content figure.image figcaption { font-size: .85rem; color: var(--c-muted); margin-top: .4rem; }
.ck-content .image-style-side { float: left; max-width: 45%; margin: .4rem 1.2rem .8rem 0; }
.ck-content figure.table { margin: 1.2rem 0; overflow-x: auto; }
.ck-content table { width: 100%; border-collapse: collapse; }
.ck-content td, .ck-content th { border: 1px solid var(--c-border); padding: .5rem .8rem; }
.ck-content th { background: var(--c-surface-2); }
.ck-content blockquote { margin: 1rem 0; padding: .7rem 1.1rem; border-right: 4px solid var(--c-primary); background: var(--c-primary-50); border-radius: 12px; }
.ck-content::after { content: ""; display: block; clear: both; }
@media (max-width: 600px) { .ck-content .image-style-side { float: none; max-width: 100%; margin: .8rem 0; } }

/* ============================ تماس ============================ */
.contact-grid { display: grid; gap: 1rem; }
@media (min-width: 768px) { .contact-grid { grid-template-columns: repeat(3, 1fr); } }
.contact-card { display: flex; flex-direction: column; gap: .5rem; padding: 1.4rem; border-radius: var(--radius-xl); background: #fff; border: 1px solid var(--c-border-2); box-shadow: var(--shadow-sm); }
.contact-card .ico-box { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; background: var(--c-primary-50); color: var(--c-primary); margin-bottom: .3rem; }
.contact-card .ico-box .ico { width: 26px; height: 26px; }
.contact-card h3 { font-size: 1.05rem; margin: 0; }
.contact-card p { margin: 0; color: var(--c-muted); }
.contact-card .big { font-size: 1.25rem; font-weight: 800; color: var(--c-text); direction: ltr; text-align: right; }

/* ============================ لندینگ سامانه تسک ============================ */
.task-mock { padding: 1.2rem; border-radius: 22px; background: #fff; color: var(--c-text); box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .45); }
.task-mock .head { display: flex; justify-content: space-between; gap: .5rem; align-items: center; margin-bottom: .9rem; }
.task-mock .head strong { font-size: 1.02rem; }
.task-mock .avatars { display: flex; margin-bottom: .9rem; }
.task-mock .avatars span { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-size: .8rem; font-weight: 800; border: 2px solid #fff; margin-left: -8px; }
.task-mock .sub { display: flex; align-items: center; gap: .6rem; padding: .55rem .2rem; border-bottom: 1px solid var(--c-border-2); font-size: .92rem; }
.task-mock .sub .box { width: 22px; height: 22px; border-radius: 7px; border: 2px solid var(--c-border); display: grid; place-items: center; flex: none; }
.task-mock .sub.done .box { background: var(--c-success); border-color: var(--c-success); color: #fff; }
.task-mock .sub.done .t { text-decoration: line-through; color: var(--c-muted); }
.task-mock .sub .who { margin-inline-start: auto; font-size: .78rem; color: var(--c-muted); }
.task-mock .bar { margin-top: 1rem; }
.task-mock .bar small { display: flex; justify-content: space-between; color: var(--c-muted); margin-top: .35rem; }
.steps { counter-reset: step; }
.step-num { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; background: var(--c-primary); color: #fff; font-weight: 800; font-size: 1.1rem; margin-bottom: 1rem; }
.audience { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; }
@media (min-width: 768px) { .audience { grid-template-columns: repeat(4, 1fr); } }
.audience div { display: flex; flex-direction: column; align-items: center; gap: .6rem; padding: 1.2rem .6rem; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--c-border-2); font-weight: 800; text-align: center; }
.audience .ico { width: 28px; height: 28px; color: var(--c-primary); }

/* ============================ فوتر ============================ */
.site-footer { background: #0b1222; color: #94a3b8; padding-top: 3rem; font-size: .92rem; }
.footer-grid { display: grid; gap: 2rem; padding-bottom: 2rem; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1.2fr .8fr; } }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 1rem; }
.site-footer p { line-height: 2; margin: 0; }
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: #fff; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.footer-contact { list-style: none; margin: 0; padding: 0; display: grid; gap: .8rem; }
.footer-contact li { display: flex; gap: .6rem; line-height: 1.9; }
.footer-contact .ico { color: #60a5fa; margin-top: .35rem; }
.footer-brand { display: flex; align-items: center; gap: .6rem; margin-bottom: 1rem; color: #fff; font-weight: 800; font-size: 1.1rem; }
.footer-brand img { height: 40px; width: auto; filter: brightness(1.1); }
.enamad { display: inline-block; padding: .4rem; border-radius: 14px; background: #fff; }
.enamad img { max-width: 110px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 1.1rem 0; font-size: .82rem; text-align: center; }

/* ============================ نوار پایین موبایل ============================ */
.m-bottom-nav {
    position: fixed; inset-inline: 0; bottom: 0; z-index: 45;
    display: grid; grid-template-columns: repeat(5, 1fr);
    height: calc(var(--mnav-h) + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom);
    background: rgba(255, 255, 255, .97); backdrop-filter: blur(12px);
    border-top: 1px solid var(--c-border-2); box-shadow: 0 -6px 20px rgba(15, 23, 42, .06);
}
.m-bottom-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .15rem; color: var(--c-muted); font-size: .7rem; font-weight: 700; }
.m-bottom-nav a .ico { width: 22px; height: 22px; }
.m-bottom-nav a.active { color: var(--c-primary); }
.m-bottom-nav a.m-cta .ico-circle {
    width: 48px; height: 48px; margin-top: -22px; border-radius: 50%;
    display: grid; place-items: center; background: var(--c-primary); color: #fff;
    box-shadow: 0 10px 20px -6px rgba(37, 99, 235, .6); border: 4px solid #fff;
}
.m-bottom-nav a.m-cta { color: var(--c-primary-700); }
@media (min-width: 992px) { .m-bottom-nav { display: none; } }

/* ============================ ظاهر شدن تدریجی ============================ */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; }
    /* برای کسی که در تنظیمات دستگاهش انیمیشن را خاموش کرده، تصویر هیرو ثابت می‌ماند */
    .hero-slides img { transition: none; transform: none; }
    .hero-slides img.is-active { animation: none; }
}

/* ============================ صفحه خطا ============================ */
.status-page { text-align: center; padding-block: 4rem; }
.status-page .code { font-size: 5rem; font-weight: 800; line-height: 1; color: var(--c-primary-100); -webkit-text-stroke: 2px var(--c-primary); }
.status-page h1 { font-size: 1.5rem; margin: 1rem 0 .5rem; }
.status-page p { color: var(--c-muted); max-width: 520px; margin: 0 auto 1.6rem; }

/* ============================ ویدیوی ابتدای صفحه اصلی ============================
   ویدیو با اسکرول جلو و عقب می‌رود (اسکریپت در js/scrollvideo.js).
   تا وقتی اسکریپت کلاس scrollvid-on را روی <html> نگذارد، چیزی دیده نمی‌شود،
   پس برای ربات‌ها، اینترنت کند و حالت بدون انیمیشن، صفحه مثل همیشه باز می‌شود. */
.scrollvid { display: none; }

html.scrollvid-on { overflow-anchor: none; overscroll-behavior-y: contain; scrollbar-gutter: stable; }
html.scrollvid-lock { overflow: hidden; }
html.scrollvid-on .scrollvid { display: block; position: relative; }

/* مسیر اسکرول ویدیو؛ ۵/۶ آن پخش است و ۱/۶ آخر برای بیرون رفتن */
html.scrollvid-on .scrollvid-track { height: 600vh; height: 600svh; background: #050a18; }

.scrollvid-stage { position: fixed; inset: 0; z-index: 1000; overflow: hidden; background: #050a18; }
.scrollvid-view { position: absolute; inset: 0; transform-origin: 50% 50%; will-change: transform; }

/* نمایشگر پهن: فریم عمودی وسط می‌نشیند و پشتش همان تصویر کِش‌آمده و کم‌رنگ */
.scrollvid-backdrop {
    position: absolute; inset: 0; display: none;
    width: 100%; height: 100%; object-fit: cover; opacity: .45; filter: blur(2px);
}
.scrollvid-stage.is-contain .scrollvid-backdrop { display: block; }

.scrollvid-poster {
    position: absolute; inset: 0; display: block;
    width: 100%; height: 100%; object-fit: cover; transition: opacity .5s ease;
}
.scrollvid-stage.is-contain .scrollvid-poster { object-fit: contain; }
.scrollvid.is-ready .scrollvid-poster { opacity: 0; }

.scrollvid-canvas { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }

.scrollvid-glow {
    position: absolute; inset: 0; pointer-events: none; opacity: 0;
    background: radial-gradient(circle at 50% 52%, rgba(255, 255, 255, .85), rgba(147, 197, 253, .5) 32%, rgba(8, 23, 53, 0) 72%);
}
.scrollvid-shade {
    position: absolute; inset: 0; pointer-events: none;
    background:
        linear-gradient(to bottom, rgba(5, 10, 24, .5), rgba(5, 10, 24, 0) 18%),
        linear-gradient(to top, rgba(5, 10, 24, .7), rgba(5, 10, 24, 0) 30%);
}

.scrollvid-hint {
    position: absolute; inset-inline: 0; bottom: 7%;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    color: #fff; font-size: clamp(1rem, 2.4vw, 1.3rem); font-weight: 800;
    text-shadow: 0 2px 16px rgba(0, 0, 0, .8);
    transition: opacity .4s ease; pointer-events: none;
}
.scrollvid-hint .ico { width: 28px; height: 28px; animation: scrollvid-bounce 1.4s ease-in-out infinite; }
.scrollvid.is-scrolled .scrollvid-hint,
.scrollvid.is-leaving .scrollvid-hint { opacity: 0; }

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

.scrollvid-skip {
    position: absolute; top: 14px; inset-inline-start: 14px;
    min-height: 40px; padding: 8px 16px;
    border: 1px solid rgba(255, 255, 255, .35); border-radius: var(--radius-pill);
    background: rgba(8, 14, 32, .55); color: #fff;
    font: inherit; font-size: .88rem; font-weight: 700; cursor: pointer;
    backdrop-filter: blur(6px);
    transition: opacity .3s ease, background-color .2s ease, border-color .2s ease;
}
.scrollvid-skip:hover, .scrollvid-skip:focus-visible {
    background: var(--c-primary); border-color: var(--c-primary); outline: none;
}
.scrollvid.is-leaving .scrollvid-skip,
.scrollvid.is-leaving .scrollvid-progress,
.scrollvid.is-leaving .scrollvid-loading { opacity: 0; pointer-events: none; }

.scrollvid-progress {
    position: absolute; inset-inline: 0; bottom: 0; height: 3px;
    background: rgba(255, 255, 255, .14); transition: opacity .3s ease;
}
.scrollvid-progress span {
    display: block; width: 100%; height: 100%;
    background: var(--c-primary); transform: scaleX(0); transform-origin: right center;
}

/* وقتی کاربر از چیزی که دانلود شده جلو بزند */
.scrollvid-loading {
    position: absolute; inset-inline: 0; top: 50%;
    display: flex; flex-direction: column; align-items: center; gap: 10px;
    color: #fff; font-weight: 700; text-shadow: 0 2px 12px rgba(0, 0, 0, .8);
    opacity: 0; transition: opacity .4s ease; pointer-events: none;
}
.scrollvid:not(.is-ready) .scrollvid-loading,
.scrollvid.is-waiting .scrollvid-loading { opacity: 1; }
.scrollvid-loading i { display: block; width: min(220px, 50%); height: 3px; background: rgba(255, 255, 255, .2); overflow: hidden; }
.scrollvid-loading b { display: block; width: 100%; height: 100%; background: var(--c-primary); transform: scaleX(0); transform-origin: right center; }

/* بیرون آمدن صفحه اصلی از پشت ویدیو */
html.scrollvid-reveal .hero-visual {
    animation: scrollvid-settle-media var(--scrollvid-exit, 1700ms) cubic-bezier(.22, .8, .24, 1) both;
}
html.scrollvid-reveal .hero-grid > :first-child {
    animation: scrollvid-settle-content var(--scrollvid-exit, 1700ms) cubic-bezier(.22, .8, .24, 1) both;
}

@keyframes scrollvid-settle-media {
    from { transform: scale(1.22); filter: blur(9px); }
    to { transform: scale(1); filter: blur(0); }
}

@keyframes scrollvid-settle-content {
    0%, 22% { opacity: 0; transform: translateY(26px) scale(1.05); filter: blur(8px); }
    100% { opacity: 1; transform: none; filter: blur(0); }
}

@media (max-width: 991px) {
    .scrollvid-hint { bottom: calc(var(--mnav-h) + 24px); }
}

@media (prefers-reduced-motion: reduce) {
    html.scrollvid-on .scrollvid { display: none; }
}