:root{
  --bg:#0f0f10;
  --muted:#c2c2c2;
  --red-dark:#440000; /* رنگ اصلی قرمز تیره */
  --red-dark-2:#6b0000; /* سایهٔ دوم برای گرادیانت اگر لازم باشه */
  --card-width: min(1100px,92%);
}

/* پایه ها */
html,body{margin:0;padding:0;height:100%;font-family:'Audiowide',sans-serif;overflow:hidden;background:var(--bg);color:#fff;}
.hero-container{position:fixed;inset:0;z-index:0;overflow:hidden;}
.hero-container video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;transition:opacity .9s ease;}
.overlay{position:absolute;inset:0;background:linear-gradient(180deg, rgba(0,0,0,0.28), rgba(0,0,0,0.6));pointer-events:none;}

/* کارت */
.content{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;width:var(--card-width);display:flex;justify-content:center;align-items:center;padding:18px;}
.hero-card {
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.006));
    border-radius: 18px;
    padding: 24px;
    backdrop-filter: blur(7px) saturate(90%);
    -webkit-backdrop-filter: blur(14px) saturate(180%);
    border: 1px solid rgba(255,255,255,0.04);
    display: flex;
    flex-direction: column;
    gap: 18px;
    align-items: center;
    color: #fff;
    box-shadow: 0 12px 50px rgba(0,0,0,0.55);
    transform-origin:center center;
    will-change: transform, opacity, filter;
    position: relative;
}

/* دکمه‌های ناوگیشن داخل کارت */
.card-nav-buttons {
    position: absolute;
    bottom: 20px; /* پایین کارت */
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between; /* یکی چپ، یکی راست */
    padding: 0 16px; /* فاصله از لبه‌ها */
    pointer-events: auto;
    z-index: 10;
}

.card-nav-btn {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(68, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: black;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.card-nav-btn:hover {
    background: rgba(107, 0, 0, 0.9);
    transform: scale(1.05);
}

.card-nav-btn:active {
    transform: scale(0.95);
}



/* حالت قبل از ورود: کارت از بالای صفحه آماده ورود است */
.hero-card.anim-hidden {
    opacity: 0;
    transform: translateY(-120vh) scale(.98) rotateX(6deg);
    filter: blur(10px);
}

/* حالت ورود: از بالا به مرکز می‌آید */
.hero-card.anim-visible {
    opacity: 1;
    transform: translateY(0) scale(1) rotateX(0);
    filter: blur(0);
    transition: transform .8s cubic-bezier(.2,.9,.25,1), opacity .6s ease, filter .6s ease;
}

/* h1/p: هر حرف داخل اسپن — white-space:pre برای حفظ nbsp */
#heroH1{
    margin:0;
    line-height:1.08;
    text-align:center;
    color: var(--red-dark); /* رنگ هدر قرمز */
    text-shadow: 0 0 8px #fff, 0 0 12px #fff; /* سایه سفید */
    font-size: clamp(18px, 4.8vw, 26px);
    letter-spacing: .8px;
    font-weight:700;
}

/* وقتی JS اسپن می‌سازد، این کلاس نیز حتماً زیر کنترل باشه */
#heroH1 .char {
    display:inline-block;
    will-change: transform, opacity;
    white-space:pre;
    opacity:0;
    transform:translateY(-18px);
    color: var(--red-dark) !important;
    text-shadow: 0 0 8px #fff, 0 0 12px #fff !important;
}

/* پاراگراف */
#heroP{
    margin:0;
    color:#fff; /* مطمئن می‌شویم سفید باشد */
    text-align:center;
    font-size: clamp(12px, 2.6vw, 18px);
    text-shadow: 0 0 4px #777; /* سایه ملایم سفید برای خوانایی */
}

#heroP .char {
    display:inline-block;
    will-change: transform, opacity;
    white-space:pre;
    opacity:0;
    transform:translateY(-12px);
    color:#fff !important; /* حتماً سفید شود */
    text-shadow: 0 0 4px #777 !important; /* سایه سفید ملایم */
}


/* باکس‌ها: از بالا وارد شوند */
.card-boxes { display:flex; gap:14px; flex-wrap:wrap; justify-content:center; align-items:stretch; min-height:72px; perspective:900px; }
.feature-box {
    min-width:140px;
    max-width:260px;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.008));
    padding:14px;
    border-radius:12px;
    text-align:center;
    display:flex;
    flex-direction:column;
    gap:8px;
    align-items:center;
    border:1px solid rgba(255,255,255,0.04);
    box-shadow:0 10px 28px rgba(0,0,0,0.5);
    opacity:0;
    transform:translateY(-28px) rotateX(6deg) scale(.98);
    transition:transform .45s cubic-bezier(.2,.9,.25,1), opacity .45s ease;
}
.feature-box.show { opacity:1; transform:translateY(0) rotateX(0) scale(1); }
.feature-box .icon{ font-size:22px; color:var(--red-dark); }
.feature-box h4{ margin:0; font-size:16px; color:var(--red-dark);text-shadow: 0 0 6px #fff; }
.feature-box p{ margin:0; font-size:13px; color:var(--muted);text-shadow: 0 0 4px #000 }

/* CTA */
.card-cta { display:flex; gap:12px; flex-wrap:wrap; justify-content:center; align-items:center; }
.btn{ display:inline-flex; align-items:center; justify-content:center; padding:10px 18px; border-radius:12px; text-decoration:none; font-weight:700; cursor:pointer; min-width:140px; border:none; }
.btn-primary {
    background: linear-gradient(90deg, var(--red-dark), var(--red-dark-2));
    color:#222;
    box-shadow: 0 8px 28px rgba(68,0,0,0.28), inset 0 -2px 6px rgba(0,0,0,0.15);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(114, 49, 49, 0.3), transparent);
    transform: skewX(-20deg);
}

.btn-primary:hover {
      color:#000;

    box-shadow: 0 0 20px rgba(255,0,0,0.6), 0 0 40px rgba(255,0,0,0.4);
    transform: scale(1.05);
}

.btn-primary:hover::before {
    left: 100%;
    transition: left 0.6s ease;
}

/* دکمه ثانویه جذاب‌تر */
.btn-secondary {
    background: rgba(255,255,255,0.04);
    color:#000000;
    border:1px solid rgba(255,255,255,0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.12);
    box-shadow: 0 0 18px rgba(255,255,255,0.3);
    transform: scale(1.03);
}


/* footer toggle */
footer{ position: fixed; left:0; width:100%; bottom:0; z-index:10; background:#0b0b0c; transform:translateY(0); transition:transform .4s ease; }
#footerToggle{ position: fixed; right: 10px; bottom: 10px; width: 30px; height: 30px; background: var(--red-dark); color: #000; border-radius:50%; display:flex; justify-content:center; align-items:center; font-size:24px; z-index:12; cursor:pointer; box-shadow: 0 6px 18px rgba(0,0,0,0.35); }

@media(max-width:768px){ 
    footer{ transform:translateY(100%); }
    .content{ padding:12px; }
    .hero-card{ padding:16px; width:94%; max-height:84vh; overflow:auto; }
    .card-boxes, .feature-box { display: none !important; }
    .btn{ min-width:110px; padding:10px 12px; }
    
}
@media(max-width:768px){ 
    footer{ transform:translateY(100%); }
    .content{ padding:12px; }
    .hero-card{ padding:16px; width:94%; max-height:84vh; overflow:auto; }
    .card-boxes, .feature-box { display: none !important; }

    /* دکمه‌ها */
    .btn{
        min-width:90px;     /* عرض کمتر */
        padding:6px 10px;   /* padding کمتر */
        font-size: 13px;    /* فونت کوچکتر */
    }

    .btn-primary, .btn-secondary{
        font-size: 13px; /* مطمئن می‌شویم فونت اصلی هم کوچک شود */
    }
}
/* موبایل خیلی کوچک */
@media (max-width: 480px) {
    .hero-card h1 {
        font-size: 1.5rem;
    }

    .hero-card p {
        font-size: 0.9rem;
    }

    .card-cta button {
        font-size: 0.8rem;
        padding: 0.5rem 0.8rem;
    }
}