:root{
    --azul:#092d5d;
    --azul2:#123d82;
    --dorado:#c9a227;
    --fondo:#f4f7fb;
    --borde:#dbe4f2;
    --txt:#12213f;
    --muted:#52627b;
}

*{box-sizing:border-box}

body{
    margin:0;
    font-family:Arial, Helvetica, sans-serif;
    background:var(--fondo);
    color:var(--txt);
}

.site-header{
    background:white;
    border-bottom:1px solid var(--borde);
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:16px 24px;
    position:sticky;
    top:0;
    z-index:10;
}

.brand{
    font-size:26px;
    font-weight:900;
    color:var(--azul);
    letter-spacing:.5px;
}

.site-header a{
    margin-left:14px;
    color:var(--azul);
    font-weight:800;
    text-decoration:none;
}

.hero{
    text-align:center;
    padding:62px 18px;
}

.hero.compact{
    padding:32px 18px 24px;
}

.hero span,.eyebrow{
    color:var(--dorado);
    font-weight:900;
    letter-spacing:2px;
    text-transform:uppercase;
    font-size:12px;
}

.hero h1{
    color:var(--azul);
    font-size:38px;
    margin:10px 0;
}

.hero p{
    font-size:16px;
    color:#45536d;
    margin:0;
}

.main-search{
    display:flex;
    gap:12px;
    max-width:880px;
    margin:24px auto 0;
}

.main-search input{
    flex:1;
    padding:15px 20px;
    border:1px solid var(--borde);
    border-radius:999px;
    font-size:15px;
    background:white;
}

button{
    border:0;
    border-radius:999px;
    background:var(--dorado);
    color:white;
    padding:0 26px;
    font-weight:900;
    cursor:pointer;
}

.discover-shell{
    max-width:1320px;
    margin:0 auto 60px;
    padding:0 18px;
    display:grid;
    grid-template-columns:270px minmax(0,1fr);
    gap:18px;
    align-items:start;
}

.filters-panel{
    background:white;
    border:1px solid var(--borde);
    border-radius:18px;
    padding:18px;
    box-shadow:0 10px 25px rgba(9,45,93,.05);
    position:sticky;
    top:88px;
}

.filters-title{
    display:flex;
    justify-content:space-between;
    gap:12px;
    align-items:center;
    margin-bottom:14px;
}

.filters-title h2{
    font-size:18px;
    margin:0;
    color:var(--azul);
}

.filters-title button{
    padding:8px 11px;
    border-radius:10px;
    background:#eef3ff;
    color:var(--azul);
    font-size:12px;
}

.filters-panel label{
    display:block;
    margin:12px 0 6px;
    color:#34435c;
    font-size:12px;
    font-weight:900;
    text-transform:uppercase;
    letter-spacing:.6px;
}

.filters-panel select,
.filters-panel input{
    width:100%;
    padding:11px 12px;
    border:1px solid var(--borde);
    border-radius:12px;
    background:#fbfcff;
    color:#22314f;
    outline:none;
}

.filters-panel select:focus,
.filters-panel input:focus{
    border-color:#9bb4df;
    box-shadow:0 0 0 3px rgba(9,45,93,.08);
}

.results-panel{
    background:white;
    border:1px solid var(--borde);
    border-radius:18px;
    padding:22px;
    box-shadow:0 10px 25px rgba(9,45,93,.05);
}

.results-header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:16px;
    margin-bottom:16px;
}

.results-header h2{
    margin:4px 0 0;
    color:#101b3d;
    font-size:25px;
}

.ia-inline-btn{
    background:var(--azul);
    border-radius:12px;
    padding:11px 15px;
    white-space:nowrap;
}

.empty{
    padding:16px;
    background:#f7f9fd;
    border:1px dashed #cbd8ea;
    border-radius:14px;
    color:var(--muted);
}

.dspace-result-card{
    display:grid;
    grid-template-columns:54px minmax(0,1fr);
    gap:15px;
    padding:17px;
    margin:12px 0;
    background:#fff;
    border:1px solid var(--borde);
    border-radius:16px;
    box-shadow:0 7px 18px rgba(9,45,93,.04);
    transition:.15s ease;
}

.dspace-result-card:hover{
    border-color:#b9c9e5;
    transform:translateY(-1px);
    box-shadow:0 12px 26px rgba(9,45,93,.08);
}

.record-icon{
    width:54px;
    height:54px;
    border-radius:15px;
    background:linear-gradient(135deg,#eef3ff,#fff8df);
    display:flex;
    justify-content:center;
    align-items:center;
    color:var(--azul);
    font-weight:900;
    font-size:20px;
}

.record-title-row{
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:12px;
}

.record-title{
    color:var(--azul);
    font-size:18px;
    font-weight:900;
    line-height:1.25;
    text-decoration:none;
}

.record-title:hover{
    text-decoration:underline;
}

.record-btn{
    background:var(--azul);
    color:white;
    text-decoration:none;
    border-radius:10px;
    padding:8px 12px;
    font-weight:900;
    font-size:13px;
    white-space:nowrap;
}

.record-badges{
    margin:9px 0 10px;
    display:flex;
    gap:7px;
    flex-wrap:wrap;
}

.record-badges span{
    background:#eef3ff;
    color:var(--azul);
    font-size:11px;
    font-weight:900;
    border-radius:999px;
    padding:5px 9px;
}

.record-meta{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:7px 16px;
    color:#445675;
    font-size:14px;
}

.info-line{
    line-height:1.35;
}

.info-line b{
    color:#243654;
}

.record-subjects{
    margin-top:12px;
}

.subject{
    display:inline-block;
    background:#fff8df;
    border:1px solid #ead067;
    color:#6a5300;
    border-radius:999px;
    padding:5px 9px;
    margin:3px;
    font-size:12px;
    font-weight:800;
}

.record-snippet{
    margin:10px 0 0;
    color:#52627b;
    font-size:14px;
    line-height:1.45;
}

.ai-fab{
    position:fixed;
    right:22px;
    bottom:22px;
    background:var(--azul);
    z-index:30;
    padding:14px 18px;
    box-shadow:0 14px 30px rgba(9,45,93,.25);
}

.ai-drawer{
    position:fixed;
    right:22px;
    bottom:84px;
    width:390px;
    max-width:calc(100vw - 34px);
    background:white;
    border:1px solid var(--borde);
    border-radius:20px;
    box-shadow:0 18px 50px rgba(9,45,93,.22);
    overflow:hidden;
    z-index:40;
    display:none;
}

.ai-drawer.open{
    display:block;
}

.ai-drawer-head{
    background:var(--azul);
    color:white;
    padding:14px 16px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.ai-drawer-head strong{
    display:block;
}

.ai-drawer-head small{
    display:block;
    opacity:.8;
    margin-top:2px;
}

.ai-drawer-head button{
    background:transparent;
    font-size:24px;
    padding:0;
}

.ai-drawer-body{
    padding:16px;
    max-height:360px;
    overflow:auto;
    white-space:pre-wrap;
    line-height:1.45;
    color:#22314f;
}

.cards{
    max-width:1100px;
    margin:auto;
    padding:0 18px 45px;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:18px;
}

.card{
    background:white;
    border:1px solid var(--borde);
    border-radius:18px;
    padding:20px;
    color:var(--txt);
    text-decoration:none;
    box-shadow:0 10px 25px #0000000d;
}

.card h3{
    color:var(--azul);
}

.chat-fab{
    position:fixed;
    right:22px;
    bottom:22px;
    background:var(--azul);
    z-index:20;
    padding:14px 18px;
}

.chat-box{
    display:none;
    position:fixed;
    right:20px;
    bottom:80px;
    width:360px;
    max-width:94vw;
    background:white;
    border:1px solid var(--borde);
    border-radius:18px;
    box-shadow:0 15px 45px #0002;
    overflow:hidden;
    z-index:30;
}

.chat-box.open{
    display:block;
}

.chat-head{
    background:var(--azul);
    color:white;
    padding:14px 16px;
    display:flex;
    justify-content:space-between;
}

.chat-head button{
    background:transparent;
    font-size:22px;
    padding:0;
}

.chat-messages{
    height:320px;
    overflow:auto;
    padding:15px;
    background:#f7f9fd;
}

.message{
    padding:10px 12px;
    border-radius:14px;
    margin:8px 0;
    white-space:pre-wrap;
}

.message.bot{
    background:white;
    border:1px solid var(--borde);
}

.message.user{
    background:var(--azul);
    color:white;
    margin-left:30px;
}

.chat-form{
    padding:12px;
    display:flex;
    margin:0;
}

.chat-form input{
    padding:12px;
}

.chat-form button{
    padding:0 16px;
}

@media(max-width:980px){
    .discover-shell{
        grid-template-columns:1fr;
    }

    .filters-panel{
        position:relative;
        top:auto;
    }

    .filters-panel{
        display:grid;
        grid-template-columns:repeat(2,1fr);
        gap:8px 12px;
    }

    .filters-title{
        grid-column:1/-1;
    }
}

@media(max-width:700px){
    .main-search{
        flex-direction:column;
    }

    button{
        padding:13px;
    }

    .hero h1{
        font-size:30px;
    }

    .record-title-row{
        flex-direction:column;
    }

    .record-btn{
        width:100%;
        text-align:center;
    }

    .record-meta{
        grid-template-columns:1fr;
    }
}

@media(max-width:560px){
    .filters-panel{
        grid-template-columns:1fr;
    }

    .dspace-result-card{
        grid-template-columns:1fr;
    }

    .record-icon{
        display:none;
    }

    .site-header{
        flex-direction:column;
        gap:8px;
    }
}