/* =================================================================
   FOOTER + NEWSLETTER (kh-ftr-* / kh-nl-*)
   Dark-purple, premium site-wide footer aligned with the hero and
   header (Site_Header.cshtml) — same gradient, same gold accent.
   ================================================================= */

/* Shared tokens (footer-scoped to avoid bleed) */
.kh-nl, .kh-ftr {
    --kh-bg-deep:   #1e1b4b;
    --kh-bg-mid:    #4c1d95;
    --kh-bg-soft:   #5b21b6;
    --kh-text:      #ffffff;
    --kh-text-mut:  rgba(255,255,255,0.72);
    --kh-text-dim:  rgba(255,255,255,0.55);
    --kh-line:      rgba(255,255,255,0.10);
    --kh-line-2:    rgba(255,255,255,0.18);
    --kh-gold-a:    #fbbf24;
    --kh-gold-b:    #f59e0b;
    --kh-purple:    #6a49f2;
}

/* ─────────────────────────────────────────────────────────────────
   NEWSLETTER — raised gradient card overlapping into the footer
   ───────────────────────────────────────────────────────────────── */
.kh-nl {
    position: relative;
    padding: 70px 0 70px;          /* فاصلهٔ متقارن — کارت دیگر در فوتر ذوب نمی‌شود */
    background: #ffffff;
    z-index: 2;
}

.kh-nl-card {
    position: relative;
    background: linear-gradient(135deg, var(--kh-bg-mid) 0%, var(--kh-bg-deep) 100%);
    border-radius: 22px;
    padding: 48px 52px;
    box-shadow:
        0 20px 50px rgba(30,27,75,0.30),
        0 8px 20px rgba(76,29,149,0.20);
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 36px;
    flex-wrap: wrap;
}

/* decorative orbs */
.kh-nl-card::before,
.kh-nl-card::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.45;
    pointer-events: none;
}
.kh-nl-card::before {
    top: -60px; right: -40px;
    width: 220px; height: 220px;
    background: radial-gradient(circle, var(--kh-gold-a) 0%, transparent 70%);
}
.kh-nl-card::after {
    bottom: -80px; left: -50px;
    width: 260px; height: 260px;
    background: radial-gradient(circle, var(--kh-purple) 0%, transparent 70%);
    opacity: 0.55;
}

.kh-nl-text {
    flex: 1 1 320px;
    position: relative;
    z-index: 1;
    color: var(--kh-text);
}
.kh-nl-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,0.10);
    border: 1px solid var(--kh-line-2);
    color: var(--kh-text);
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 14px;
}
.kh-nl-badge i { color: var(--kh-gold-a); }
.kh-nl-text h2 {
    font-size: 1.85rem;
    font-weight: 800;
    margin: 0 0 8px;
    color: var(--kh-text);
    line-height: 1.4;
}
.kh-nl-text p {
    margin: 0;
    color: var(--kh-text-mut);
    font-size: 0.95rem;
    line-height: 1.7;
}

.kh-nl-form {
    flex: 1 1 380px;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: stretch;
    gap: 10px;
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--kh-line-2);
    border-radius: 14px;
    padding: 8px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.kh-nl-form .kh-nl-input {
    flex: 1;
    height: 52px;
    border: none;
    outline: none;
    background: transparent;
    color: var(--kh-text);
    font-size: 0.95rem;
    padding: 0 16px;
    direction: rtl;
}
.kh-nl-form .kh-nl-input::placeholder {
    color: var(--kh-text-dim);
}
.kh-nl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 52px;
    padding: 0 24px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--kh-gold-a), var(--kh-gold-b));
    color: var(--kh-bg-deep);
    font-weight: 800;
    font-size: 0.95rem;
    cursor: pointer;
    box-shadow: 0 6px 16px rgba(251,191,36,0.30);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
    white-space: nowrap;
}
.kh-nl-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(251,191,36,0.45);
    filter: brightness(1.05);
}
.kh-nl-btn:active { transform: translateY(0); }

.kh-nl-meta {
    flex: 1 1 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-top: 6px;
    position: relative;
    z-index: 1;
}
.kh-nl-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--kh-text-mut);
    font-size: 0.82rem;
}
.kh-nl-meta i { color: var(--kh-gold-a); font-size: 0.85rem; }

/* ─────────────────────────────────────────────────────────────────
   FOOTER — dark purple, brand-aligned
   ───────────────────────────────────────────────────────────────── */
.kh-ftr {
    position: relative;
    color: var(--kh-text);
    background: linear-gradient(135deg, var(--kh-bg-deep) 0%, var(--kh-bg-mid) 60%, var(--kh-bg-soft) 100%);
    overflow: hidden;
}
/* subtle texture / glow */
.kh-ftr::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(60% 50% at 85% 10%, rgba(106,73,242,0.25) 0%, transparent 60%),
        radial-gradient(50% 40% at 5% 90%, rgba(251,191,36,0.10) 0%, transparent 60%);
    pointer-events: none;
}

.kh-ftr-top {
    position: relative;
    padding: 60px 0 50px;          /* padding عادی — همپوشانی حذف شد، خبرنامه تمیز بالای فوتر می‌نشیند */
    z-index: 1;
}

/* 4-column grid */
.kh-ftr-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1.1fr;
    gap: 36px;
}

/* Brand block */
.kh-ftr-brand .kh-ftr-logo {
    display: inline-flex;
    align-items: center;
    margin-bottom: 18px;
}
.kh-ftr-brand .kh-ftr-logo img {
    width: 150px;
    height: auto;
    /* Keep colored logos readable on dark bg */
    filter: brightness(0) invert(1);
    opacity: 0.95;
}
.kh-ftr-about {
    color: var(--kh-text-mut);
    font-size: 0.92rem;
    line-height: 1.85;
    margin: 0 0 18px;
    max-width: 36ch;
}
.kh-ftr-contact {
    list-style: none;
    padding: 0;
    margin: 0 0 22px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.kh-ftr-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--kh-text-mut);
    font-size: 0.9rem;
}
.kh-ftr-contact a {
    color: var(--kh-text-mut);
    text-decoration: none;
    direction: ltr;
    transition: color 0.2s ease;
}
.kh-ftr-contact a:hover { color: var(--kh-gold-a); }
.kh-ftr-contact .kh-ftr-ico {
    width: 30px; height: 30px;
    border-radius: 8px;
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--kh-line);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--kh-gold-a);
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* Social pills */
.kh-ftr-social {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.kh-ftr-social a {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--kh-line-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--kh-text);
    font-size: 1rem;
    text-decoration: none;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.kh-ftr-social a:hover {
    transform: translateY(-3px);
    background: linear-gradient(135deg, var(--kh-gold-a), var(--kh-gold-b));
    color: var(--kh-bg-deep);
    border-color: transparent;
}

/* Link columns */
.kh-ftr-col h3 {
    color: var(--kh-text);
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 22px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--kh-gold-a);
    display: inline-block;
}
.kh-ftr-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.kh-ftr-col ul li a {
    color: var(--kh-text-mut);
    text-decoration: none;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s ease, transform 0.2s ease;
}
.kh-ftr-col ul li a::before {
    content: "\f0d9";              /* RTL caret */
    font-family: "Font Awesome 5 Free", "FontAwesome";
    font-weight: 900;
    color: var(--kh-gold-a);
    opacity: 0;
    transform: translateX(6px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    font-size: 0.8rem;
}
.kh-ftr-col ul li a:hover {
    color: var(--kh-text);
    transform: translateX(-4px);   /* RTL: text shifts toward the bullet */
}
.kh-ftr-col ul li a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

/* Try-out / apps & enamad column */
.kh-ftr-apps {
    list-style: none;
    padding: 0;
    margin: 0 0 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.kh-ftr-apps a {
    display: inline-flex;
    align-items: center;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--kh-line-2);
    border-radius: 12px;
    padding: 8px 10px;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    width: fit-content;
    max-width: 100%;
}
.kh-ftr-apps a:hover {
    transform: translateY(-2px);
    background: rgba(255,255,255,0.12);
    border-color: var(--kh-gold-a);
}
.kh-ftr-apps a img {
    max-width: 150px;
    height: auto;
    display: block;
}
/* App badges — apps not published yet: shown as "coming soon" instead of dead links */
.kh-ftr-apps a.kh-ftr-app-soon {
    cursor: default;
    position: relative;
    opacity: 0.7;
}
.kh-ftr-apps a.kh-ftr-app-soon:hover {
    transform: none;
    background: rgba(255,255,255,0.06);
    border-color: var(--kh-line-2);
}
.kh-ftr-app-tag {
    position: absolute;
    top: 6px;
    inset-inline-end: 6px;
    background: var(--kh-gold-a);
    color: #1b1430;
    font-size: 0.62rem;
    font-weight: 800;
    line-height: 1;
    padding: 3px 6px;
    border-radius: 6px;
    pointer-events: none;
}
.kh-ftr-enamad {
    background: #fff;
    border-radius: 10px;
    padding: 6px;
    display: inline-block;
    width: fit-content;
}
.kh-ftr-enamad img {
    display: block;
    width: 88px;
    height: auto;
}

/* Bottom strip */
.kh-ftr-bottom {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--kh-line);
    background: rgba(0,0,0,0.20);
    padding: 18px 0;
}
.kh-ftr-bottom-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}
.kh-ftr-copy {
    margin: 0;
    color: var(--kh-text-mut);
    font-size: 0.85rem;
}
.kh-ftr-credit {
    margin: 0;
    color: var(--kh-text-mut);
    font-size: 0.85rem;
}
.kh-ftr-credit strong {
    color: var(--kh-gold-a);
    font-weight: 700;
}

/* Go-top button — gold pill, on top of footer */
.kh-ftr .go_top,
.go_top.kh-go-top {
    position: fixed;
    bottom: 22px;
    left: 22px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--kh-gold-a), var(--kh-gold-b));
    color: var(--kh-bg-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 24px rgba(251,191,36,0.40);
    cursor: pointer;
    z-index: 80;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.25s ease;
}
.kh-ftr .go_top:hover,
.go_top.kh-go-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(251,191,36,0.55);
}
.kh-ftr .go_top span,
.go_top.kh-go-top span { display: flex; }
.kh-ftr .go_top i,
.go_top.kh-go-top i { font-size: 1.1rem; }

/* ─────────────────────────────────────────────────────────────────
   Responsive
   ───────────────────────────────────────────────────────────────── */
@media (max-width: 991px) {
    .kh-ftr-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .kh-ftr-brand { grid-column: 1 / -1; }
    .kh-nl-card { padding: 40px 32px; gap: 26px; }
    .kh-nl-text h2 { font-size: 1.55rem; }
}

@media (max-width: 575px) {
    .kh-nl { padding: 50px 0 50px; }
    .kh-nl-card {
        padding: 32px 22px;
        border-radius: 18px;
    }
    .kh-nl-text h2 { font-size: 1.3rem; }
    .kh-nl-text p { font-size: 0.88rem; }
    .kh-nl-form {
        flex-direction: column;
        background: transparent;
        border: none;
        padding: 0;
        gap: 10px;
    }
    .kh-nl-form .kh-nl-input {
        background: rgba(255,255,255,0.10);
        border: 1px solid var(--kh-line-2);
        border-radius: 10px;
        height: 50px;
    }
    .kh-nl-btn { height: 50px; width: 100%; }

    .kh-ftr-top { padding: 44px 0 36px; }
    .kh-ftr-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .kh-ftr-bottom-row {
        flex-direction: column;
        text-align: center;
        gap: 4px;
    }
}