* { scroll-behavior: smooth; }
body { font-family: 'Inter', 'Hind Siliguri', sans-serif; background-color: #ffffff; color: #1e293b; overflow-x: hidden; position: relative; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #f8fafc; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; border: 3px solid #f8fafc; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
.scroll-reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.scroll-reveal.visible { opacity: 1; transform: translateY(0); }
.reg-reg { background-image: linear-gradient(to right, #f1f5f9 1px, transparent 1px), linear-gradient(to bottom, #f1f5f9 1px, transparent 1px); background-size: 40px 40px; }
.noise-bg::after { content: ''; position: fixed; inset: 0; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E"); opacity: 0.02; pointer-events: none; z-index: 50; }
.gradient-text { background: linear-gradient(135deg, #1e1b4b 0%, #4338ca 50%, #6366f1 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.glass { background: rgba(255, 255, 255, 0.7); backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.4); box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1); }
.glass-card { background: rgba(255, 255, 255, 0.8); border: 1px solid #f1f5f9; box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
.btn-whatsapp { 
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%); 
    color: #ffffff !important; 
    font-weight: 700; 
    border-radius: 20px; 
    box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.4); 
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); 
    border: 1px solid rgba(255, 255, 255, 0.2); 
}
.btn-whatsapp:hover { 
    background: linear-gradient(135deg, #059669 0%, #047857 100%); 
    color: #ffffff !important; 
    box-shadow: 0 20px 30px -5px rgba(16, 185, 129, 0.5); 
    transform: translateY(-3px) scale(1.02); 
}

.btn-primary { 
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #fdbe2e 0%, #f59e0b 100%); 
    color: #0f172a; 
    font-weight: 800; 
    border-radius: 20px; 
    box-shadow: 0 10px 25px -5px rgba(253, 190, 46, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.3); 
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); 
    border: 1px solid rgba(253, 190, 46, 0.2);
}
.btn-primary:hover { 
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%); 
    box-shadow: 0 20px 35px -5px rgba(253, 190, 46, 0.5); 
    transform: translateY(-3px) scale(1.02); 
    color: #000;
}

.btn-secondary { 
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(248, 250, 252, 0.5); 
    backdrop-filter: blur(8px);
    border: 1px solid #e2e8f0; 
    color: #475569; 
    font-weight: 700; 
    border-radius: 20px; 
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); 
}
.btn-secondary:hover {
    background: #ffffff;
    border-color: #cbd5e1;
    color: #0f172a;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.05);
}
.orb { position: absolute; border-radius: 100%; filter: blur(80px); z-index: -1; opacity: 0.15; pointer-events: none; }
.premium-card { position: relative; overflow: hidden; background: #ffffff; border: 1px solid #f1f5f9; transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
.premium-card:hover { transform: translateY(-5px); border-color: rgba(99,102,241,0.2); box-shadow: 0 25px 50px -12px rgba(0,0,0,0.08); }
.premium-card::after { content: ""; position: absolute; top: -110%; left: -210%; width: 200%; height: 200%; opacity: 0; transform: rotate(30deg); background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.1) 80%, rgba(255, 255, 255, 0.4) 95%, rgba(255, 255, 255, 0) 100%); }
.premium-card:hover::after { opacity: 1; top: -30%; left: -30%; transition: all 0.7s ease-in-out; }

.glass-premium { background: rgba(255, 255, 255, 0.6); backdrop-filter: blur(20px); border: 1px solid rgba(255, 255, 255, 0.4); box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07); }
.scanner-line { position: absolute; left: 0; width: 100%; height: 2px; background: linear-gradient(to right, transparent, rgba(99, 102, 241, 0.3), transparent); filter: blur(1px); animation: scan 4s linear infinite; }
.glow-ring { position: absolute; border: 1px solid rgba(99, 102, 241, 0.2); border-radius: 50%; width: 100%; height: 100%; }
.bubble { position: absolute; background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(16, 185, 129, 0.1)); border: 1px solid rgba(255, 255, 255, 0.3); border-radius: 50%; pointer-events: none; opacity: 0; animation: float-bubble infinite; }

.sparkle {
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
    pointer-events: none;
    z-index: 10;
    animation: twinkling 3s infinite ease-in-out;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.9), 0 0 30px currentColor;
    filter: blur(0.5px);
}
@keyframes twinkling {
    0%, 100% { transform: scale(0.6) translateY(0); opacity: 0.2; }
    50% { transform: scale(1.4) translateY(-20px); opacity: 1; }
}

.pattern-plus {
    background-image: radial-gradient(circle, #e2e8f0 1.5px, transparent 1.5px), radial-gradient(circle, #e2e8f0 1.5px, transparent 1.5px);
    background-size: 40px 40px;
    background-position: 0 0, 20px 20px;
}

/* Premium Plus SVG Pattern */
.bg-plus-grid {
    background-color: #f8fafc;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%236366f1' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
/* Swiper Pagination - Premium Dots */
.hv-dot-premium {
    width: 10px;
    height: 10px;
    background: #e2e8f0;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1 !important;
    margin: 0 4px !important;
    display: inline-block;
}
.swiper-pagination-bullet-active.hv-dot-premium {
    background: #6366f1;
    width: 32px;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}
.swiper-slide { transition: all 0.8s ease; opacity: 0.3; pointer-events: none; }
.swiper-slide-active { opacity: 1 !important; pointer-events: auto; }
.swiper-slide-active .scroll-reveal { opacity: 1; transform: translateY(0); }

/* ROTATING TITLE BUBBLES */
@keyframes title-orbit {
    0% { transform: rotate(0deg) translateX(45px) rotate(0deg); }
    100% { transform: rotate(360deg) translateX(45px) rotate(-360deg); }
}
.title-bubble {
    position: absolute;
    background: linear-gradient(135deg, var(--bubble-start, #6366f1), var(--bubble-end, #10b981));
    border-radius: 50%;
    pointer-events: none;
    z-index: 10;
    opacity: 0.7;
    box-shadow: 0 0 15px var(--bubble-glow, rgba(99, 102, 241, 0.4));
    border: 1px solid rgba(255, 255, 255, 0.5);
}

/* PROFESSIONAL HERO UPGRADES */
.hero-mesh {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(16, 185, 129, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(253, 190, 46, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(14, 165, 233, 0.1) 0px, transparent 50%);
    filter: blur(80px);
    animation: mesh-drift 20s ease-in-out infinite alternate;
}
@keyframes mesh-drift {
    0% { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.1) translate(20px, 20px); }
}
.glass-dashboard-wrapper {
    perspective: 2000px;
}
.glass-dashboard-content {
    transform: rotateX(15deg) rotateY(-5deg) rotateZ(2deg);
    transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.5s ease;
    box-shadow: 
        0 50px 100px -20px rgba(0,0,0,0.15),
        0 30px 60px -30px rgba(0,0,0,0.2),
        inset 0 0 0 1px rgba(255,255,255,0.5);
    transform-style: preserve-3d;
}
.glass-dashboard-wrapper:hover .glass-dashboard-content {
    box-shadow: 0 70px 120px -20px rgba(0,0,0,0.25);
}
.live-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: white;
    border: 1px solid #f1f5f9;
    border-radius: 99px;
    font-size: 11px;
    font-weight: 800;
    color: #0f172a;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

/* STROKE TEXT FIX & RESPONSIVENESS */
.stroke-text {
    -webkit-text-stroke: 1px rgba(15, 23, 42, 0.15);
    color: rgba(15, 23, 42, 0.05);
    transition: all 0.5s ease;
}
.stroke-text:hover {
    color: rgba(15, 23, 42, 0.1);
    -webkit-text-stroke: 1px rgba(15, 23, 42, 0.3);
}

@media (max-width: 768px) {
    .glass-dashboard-wrapper {
        perspective: none;
        padding-top: 2rem;
    }
    .glass-dashboard-content {
        transform: none !important;
        border-radius: 20px;
    }
    .glass-dashboard-content img {
        border-radius: 18px;
    }
    .stroke-text {
        -webkit-text-stroke: 0.5px rgba(15, 23, 42, 0.2);
        color: rgba(15, 23, 42, 0.1);
    }
    .hero-mesh {
        filter: blur(40px);
    }
}

/* WHATSAPP FLOATING WIDGET - PREMIUM DESIGN */
.whatsapp-widget-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.whatsapp-banner {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 1.5rem;
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    animation: slide-up 0.8s ease-out;
    max-width: 380px;
}
.whatsapp-icon-wrapper {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.whatsapp-icon-wrapper::after {
    content: '';
    position: absolute;
    top: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    background: #ffffff;
    border-radius: 50%;
    border: 2px solid #10b981;
    animation: pulse-online 2s infinite;
}
@keyframes pulse-online {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}
@keyframes slide-up {
    from { transform: translateY(100px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
.mobile-whatsapp-btn {
    display: none;
    width: 65px;
    height: 65px;
    background: #10b981;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4);
    border: 3px solid white;
    animation: bounce-slow 3s infinite;
}
@keyframes bounce-slow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@media (max-width: 768px) {
    .whatsapp-banner { display: none; }
    .mobile-whatsapp-btn { display: flex; }
    .whatsapp-widget-container { bottom: 20px; right: 20px; }
}
/* ==========================================
   PREMIUM 3D WORD SWITCHER (CLEAN & SPACIOUS)
   ========================================== */
.word-switcher-container {
    position: relative;
    display: block;
    margin: 1.5rem auto 2.5rem auto; 
    width: 100%;
    height: 1.5em; /* এখন এটি ফন্ট সাইজের সাথে অটোমেটিক বড়-ছোট হবে */
}
.word-switcher {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.word-item {
    position: absolute;
    left: 0;
    width: 100%;
    text-align: center;
    font-weight: 900;
    white-space: nowrap;
    transition: all 1s cubic-bezier(0.34, 1.56, 0.64, 1);
    opacity: 0;
    filter: blur(12px);
    transform: translateY(40px) scale(0.8) rotateX(-20deg);
    pointer-events: none;
    line-height: 1.5em; /* লেখাটি যেন একদম মাঝে থাকে */
}
.word-item.active-magic {
    opacity: 1;
    filter: blur(0px);
    transform: translateY(0) scale(1) rotateX(0deg);
    pointer-events: auto;
    text-shadow: 0 5px 15px currentColor;
}
.word-item.exit-magic {
    opacity: 0;
    filter: blur(12px);
    transform: translateY(-40px) scale(1.1) rotateX(20deg);
}
/* Mobile Responsive Spacing এর ঐ অংশটুকু ডিলিট করে দিন, আর লাগবে না */
/* Mobile Responsive Spacing */
@media (max-width: 768px) {
    .word-switcher-container { 
        height: 1.6em; 
        margin: 1rem auto 2rem auto; 
    }
}

/* PREMIUM DISCOUNT BADGE */
.discount-badge-premium {
    background: #ffffff;
    border: 3px solid #f43f5e;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 15px 30px rgba(244, 63, 94, 0.15);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.group:hover .discount-badge-premium {
    transform: scale(1.1) rotate(0deg);
    box-shadow: 0 20px 40px rgba(244, 63, 94, 0.25);
}