@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;600;700;800&display=swap');

:root{
    --primary:#1877F2;
    --dark:#0F172A;
    --gray:#64748B;
    --bg:#F8FAFC;
    --white:#ffffff;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Cairo',sans-serif;
}

body{
    background:
    radial-gradient(circle at top right,#dbeafe 0%,#f8fafc 40%),
    #f8fafc;

    color:var(--dark);
}

.container{
    width:90%;
    max-width:1400px;
    margin:auto;
}

/* Navbar */

.navbar{
    background:#fff;
    border-bottom:1px solid #e5e7eb;
    position:sticky;
    top:0;
    z-index:100;
}

.navbar-content{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 0;
}

.logo{
    font-size:34px;
    font-weight:800;
}

.btn{
    text-decoration:none;
    padding:12px 24px;
    border-radius:12px;
    display:inline-block;
    transition:.3s;
    color:var(--dark);
}

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

.btn-primary:hover{
    transform:translateY(-3px);
}

/* Hero */

.hero{
    min-height:90vh;
    display:flex;
    align-items:center;
}

.hero-content{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:70px;
    align-items:center;
}

.hero-title{
    font-size:64px;
    line-height:1.1;
    font-weight:800;
    margin-bottom:20px;
}

.hero-desc{
    margin-top:15px;
    font-size:20px;
    line-height:1.9;
    color:var(--gray);
    max-width:700px;
}

.hero-buttons{
    margin-top:35px;
    display:flex;
    gap:15px;
}

/* Dashboard Mockup */

.mockup{
    background:white;
    border-radius:25px;
    overflow:hidden;
    box-shadow:0 30px 80px rgba(0,0,0,.08);
    min-height:550px;
}

.dash-top{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 25px;
    border-bottom:1px solid #e5e7eb;
    background:#fff;
}

.dash-top h3{
    margin:0;
    font-size:22px;
}

.dash-top span{
    color:var(--gray);
}

/* Stats */

.stats{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:15px;
    padding:20px;
}

.stat-card{
    background:#f8fafc;
    border:1px solid #e5e7eb;
    border-radius:16px;
    padding:20px;
    text-align:center;
}

.stat-card h2{
    color:var(--primary);
    margin-bottom:10px;
    font-size:32px;
}

.stat-card p{
    color:var(--gray);
}

/* Inbox Preview */

.chat-list{
    padding:20px;
}

.chat-item{
    display:flex;
    flex-direction:column;
    gap:5px;
    background:white;
    border:1px solid #e5e7eb;
    border-radius:14px;
    padding:15px;
    margin-bottom:12px;
    transition:.3s;
}

.chat-item:hover{
    transform:translateX(-4px);
    box-shadow:0 10px 20px rgba(0,0,0,.05);
}

.chat-item strong{
    color:var(--dark);
}

.chat-item span{
    color:var(--gray);
    font-size:14px;
}

/* Responsive */

@media(max-width:991px){

    .hero-content{
    display:grid;
    grid-template-columns:55% 45%;
    gap:50px;
    align-items:center;
}

    .hero-title{
    font-size:58px;
    line-height:1.1;
    font-weight:800;
}

    .stats{
        grid-template-columns:1fr;
    }

}
.mockup{
    display:grid;
    grid-template-columns:80px 180px 1fr;
    min-height:550px;
}

.inbox-sidebar{
    background:#0f172a;
    color:white;
    padding:20px 10px;
}

.sidebar-logo{
    font-weight:700;
    margin-bottom:30px;
    text-align:center;
}

.sidebar-item{
    padding:12px;
    border-radius:10px;
    margin-bottom:10px;
    text-align:center;
}

.sidebar-item.active{
    background:#1877F2;
}

.conversation-list{
    border-left:1px solid #e5e7eb;
    background:#fff;
}

.conversation{
    padding:18px;
    border-bottom:1px solid #e5e7eb;
}

.conversation.active{
    background:#f8fafc;
}

.chat-window{
    padding:20px;
}

.chat-header{
    font-weight:700;
    margin-bottom:20px;
}

.message{
    padding:12px 16px;
    border-radius:12px;
    margin-bottom:12px;
    max-width:70%;
}

.received{
    background:#f1f5f9;
}

.sent{
    background:#1877F2;
    color:white;
    margin-right:auto;
}