/* assets/style.css */
:root{
    --bg: #0b1220;
    --panel: rgba(0,0,0,0.6);
    --panel-2: rgba(255,255,255,.10);
    --text: rgba(255,255,255,.92);
    --muted: rgba(255,255,255,.65);
    --border: rgba(255,255,255,.12);

    --primary: #3b82f6;
    --primary-2: #1d4ed8;
    --accent: #f59e0b;
    --success: #22c55e;

    --shadow: 0 18px 55px rgba(0,0,0,.35);
    --radius: 18px;
    --radius-sm: 12px;
}

*{ box-sizing: border-box; }
html,body{ height: 100%; }
body{
    margin: 0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
    color: var(--text);
    background:
            radial-gradient(1100px 500px at 10% 10%, rgba(59,130,246,.25), transparent 55%),
            radial-gradient(900px 450px at 95% 20%, rgba(245,158,11,.18), transparent 55%),
            radial-gradient(1200px 700px at 50% 100%, rgba(34,197,94,.12), transparent 55%),
            linear-gradient(180deg, #070b14 0%, #0b1220 55%, #070b14 100%);

    background-image: url("./images/hg.png");
    background-position: bottom center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}

.logo{
    width: 200px;
    height: auto;
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; }
img{ max-width: 100%; display: block; }

.container{
    width: min(1100px, calc(100% - 32px));
    margin: 0 auto;
}

.card{
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

.btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 14px;
    border: 1px solid var(--border);
    cursor: pointer;
    font-weight: 650;
    color: var(--text);
    background: rgba(255,255,255,.06);
    transition: transform .12s ease, background .12s ease, border-color .12s ease, opacity .12s ease;
    user-select: none;
}
.btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.18); }
.btn:active{ transform: translateY(0px); opacity: .95; }
.btn.primary{
    background: linear-gradient(180deg, rgba(59,130,246,.95), rgba(29,78,216,.95));
    border-color: rgba(59,130,246,.55);
}
.btn.primary:hover{ background: linear-gradient(180deg, rgba(59,130,246,1), rgba(29,78,216,1)); }
.btn.accent{
    background: linear-gradient(180deg, rgba(245,158,11,.95), rgba(217,119,6,.95));
    border-color: rgba(245,158,11,.55);
}
.btn.ghost{
    background: transparent;
}

.badge{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(255,255,255,.08);
    border: 1px solid var(--border);
    color: var(--muted);
    font-weight: 650;
    font-size: 12px;
}

.nav{
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(7,11,20,.72);
    border-bottom: 1px solid rgba(255,255,255,.08);
    backdrop-filter: blur(12px);
}
.nav-inner{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}
.brand{
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: .2px;
}
.brand-mark{
    width: 34px; height: 34px;
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(59,130,246,.95), rgba(29,78,216,.95));
    display: grid;
    place-items: center;
    box-shadow: 0 16px 35px rgba(59,130,246,.25);
}
.brand small{ display:block; color: var(--muted); font-weight: 600; letter-spacing: 0; }

.nav-links{
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--muted);
    font-weight: 650;
}
.nav-links a{
    padding: 8px 10px;
    border-radius: 12px;
}
.nav-links a:hover{
    background: rgba(255,255,255,.06);
    text-decoration: none;
    color: var(--text);
}

/* HERO */
.hero{
    padding: 44px 0 26px;
}
.hero-grid{
    display: grid;
    gap: 18px;
    grid-template-columns: 1.2fr .8fr;
    align-items: stretch;
}
@media (max-width: 940px){
    .hero-grid{ grid-template-columns: 1fr; }
}
.hero-left{
    padding: 28px;
    overflow: hidden;
    position: relative;
    min-height: 360px;
}
.hero-left::before{
    content:"";
    position:absolute;
    inset:-120px -80px auto auto;
    width: 420px; height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.18), rgba(255,255,255,.02) 55%, transparent 65%);
    filter: blur(0px);
    opacity: .9;
}
.hero-left::after{
    content:"";
    position:absolute;
    left:-120px; bottom:-200px;
    width: 520px; height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(59,130,246,.22), transparent 60%);
}
.kicker{
    display:flex;
    align-items:center;
    gap: 10px;
    color: var(--muted);
    font-weight: 700;
    position: relative;
    z-index: 1;
}
.h1{
    font-size: clamp(30px, 4vw, 46px);
    line-height: 1.05;
    margin: 14px 0 12px;
    letter-spacing: -0.7px;
    position: relative;
    z-index: 1;
}
.sub{
    color: var(--muted);
    font-size: 15.5px;
    line-height: 1.55;
    max-width: 60ch;
    position: relative;
    z-index: 1;
}
.cta{
    display:flex;
    gap: 12px;
    margin-top: 18px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}
.hero-right{
    padding: 22px;
    display: grid;
    gap: 12px;
}
.feature{
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,.05);
}
.feature h3{
    margin: 0 0 6px;
    font-size: 14px;
}
.feature p{
    margin: 0;
    color: var(--muted);
    font-size: 13.5px;
    line-height: 1.5;
}
.icon{
    width: 36px; height: 36px;
    border-radius: 14px;
    display:grid;
    place-items:center;
    margin-bottom: 10px;
    background: rgba(255,255,255,.08);
    border: 1px solid var(--border);
}

/* SECTIONS */
.section{
    padding: 20px 0 48px;
}
.section-title{
    display:flex;
    align-items:flex-end;
    justify-content: space-between;
    gap: 14px;
    margin: 18px 0;
}
.section-title h2{
    margin:0;
    font-size: 18px;
    letter-spacing: -.2px;
}
.section-title span{ color: var(--muted); font-weight: 650; font-size: 13px; }

.grid-3{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
@media (max-width: 940px){
    .grid-3{ grid-template-columns: 1fr; }
}

.footer{
    padding: 26px 0 40px;
    color: var(--muted);
    font-size: 13px;
    border-top: 1px solid rgba(255,255,255,.08);
    margin-top: 24px;
}

/* AUTH */
.auth-wrap{
    min-height: calc(100vh - 64px);
    display:grid;
    place-items:center;
    padding: 26px 0 60px;
}
.auth-card{
    width: min(520px, 100%);
    padding: 24px;
}
.auth-card h1{
    margin: 0 0 8px;
    font-size: 22px;
}
.auth-card p{
    margin: 0 0 18px;
    color: var(--muted);
    line-height: 1.5;
    font-size: 14px;
}
.field{
    display:grid;
    gap: 7px;
    margin-bottom: 12px;
}
label{
    color: var(--muted);
    font-weight: 700;
    font-size: 13px;
}
input{
    width: 100%;
    padding: 12px 12px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,.14);
    background: rgba(0,0,0,.22);
    color: var(--text);
    outline: none;
}
input:focus{
    border-color: rgba(59,130,246,.7);
    box-shadow: 0 0 0 4px rgba(59,130,246,.18);
}
.auth-actions{
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 10px;
    flex-wrap: wrap;
}
.mini{
    color: var(--muted);
    font-size: 13px;
}
.hr{
    height: 1px;
    background: rgba(255,255,255,.10);
    margin: 18px 0;
}

/* CHAT */
.chat-shell{
    height: calc(100vh - 64px);
    padding: 16px 0 16px;
}
.chat-grid{
    height: 100%;
    display:grid;
    grid-template-columns: 300px 1fr;
    gap: 14px;
}
@media (max-width: 940px){
    .chat-grid{ grid-template-columns: 1fr; }
}
.sidebar{
    padding: 14px;
    overflow:auto;
}
.side-head{
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}
.side-title{
    font-weight: 850;
    letter-spacing: -.2px;
}
.rooms, .online{
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,.10);
}
.list{
    display:grid;
    gap: 8px;
}
.item{
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 10px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.04);
    cursor: pointer;
}
.item:hover{ background: rgba(255,255,255,.07); }
.item.active{
    border-color: rgba(59,130,246,.55);
    background: rgba(59,130,246,.12);
}
.pill{
    font-size: 12px;
    color: var(--muted);
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.06);
    padding: 4px 9px;
    border-radius: 999px;
    white-space: nowrap;
}

.chat-main{
    display:grid;
    grid-template-rows: auto 1fr auto;
    overflow: hidden;
}
.chat-head{
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255,255,255,.10);
}
.chat-title{
    display:flex;
    align-items:center;
    gap: 12px;
}
.chat-title h2{
    margin:0;
    font-size: 16px;
}
.chat-title span{ color: var(--muted); font-size: 13px; font-weight: 650; }

.messages{
    padding: 16px;
    overflow:auto;
}
.msg{
    display:flex;
    gap: 10px;
    margin-bottom: 12px;
    align-items:flex-start;
}
.avatar{
    width: 36px; height: 36px;
    border-radius: 14px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    display:grid;
    place-items:center;
    font-weight: 900;
    color: rgba(255,255,255,.85);
    flex: 0 0 auto;
}
.bubble{
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.10);
    padding: 10px 12px;
    border-radius: 16px;
    max-width: 70ch;
    width: 100%;
}
.meta{
    display:flex;
    gap: 10px;
    align-items: baseline;
    margin-bottom: 4px;
}
.name{ font-weight: 850; font-size: 13px; }
.time{ color: var(--muted); font-size: 12px; font-weight: 650; }
.text{ color: rgba(255,255,255,.88); line-height: 1.45; font-size: 14px; }

.composer{
    padding: 12px;
    border-top: 1px solid rgba(255,255,255,.10);
    display:flex;
    gap: 10px;
}
.composer input{
    flex: 1;
    border-radius: 14px;
}