:root {
    --bg: #060b24;
    --bg-2: #0b1030;
    --surface: #111741;
    --surface-2: #161d4f;
    --cyan: #2ba9e0;
    --blue: #2b5ba8;
    --text: #e8ecf8;
    --muted: #97a3cc;
    --border: rgba(43, 169, 224, 0.18);
    --gradient: linear-gradient(120deg, #2ba9e0 0%, #2b5ba8 55%, #252d6b 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Sora', 'Segoe UI', system-ui, sans-serif;
    line-height: 1.5;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
    position: sticky; top: 0;
    display: flex; align-items: center; justify-content: space-between;
    padding: .8rem clamp(1rem, 4vw, 3rem);
    background: rgba(6, 11, 36, .9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}
.brand { display: flex; align-items: center; gap: .6rem; color: var(--text); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand img { height: 36px; }
.top nav { display: flex; align-items: center; gap: 1.2rem; font-size: .9rem; }
.top nav a { color: var(--muted); }
.top nav button {
    background: none; border: 1px solid var(--border); color: var(--text);
    padding: .4rem .9rem; border-radius: 999px; font: inherit; cursor: pointer;
}
.top nav button:hover { border-color: var(--cyan); }

.wrap { max-width: 1200px; margin: 0 auto; padding: 2rem clamp(1rem, 4vw, 3rem) 4rem; }
h1 { font-size: 1.6rem; margin-bottom: 1.5rem; }
h2 { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; }

.msgs { margin-bottom: 1.2rem; display: grid; gap: .5rem; }
.msg { padding: .8rem 1rem; border-radius: 12px; background: rgba(37, 211, 102, .12); border: 1px solid rgba(37, 211, 102, .4); color: #b9f5cf; }
.msg.error { background: rgba(255, 99, 99, .1); border-color: rgba(255, 99, 99, .4); color: #ffc2c2; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.kpi {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.1rem 1.2rem;
    display: flex; flex-direction: column; gap: .25rem;
}
.kpi span { color: var(--muted); font-size: .8rem; }
.kpi b { font-size: 1.9rem; font-weight: 700; }
.kpi small { color: var(--muted); font-size: .75rem; }
.kpi.accent { background: var(--gradient); border: none; }
.kpi.accent span { color: rgba(255, 255, 255, .85); }

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.4rem;
    margin-bottom: 1.5rem;
}
.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.charts .panel { margin-bottom: 1.5rem; }

.bars { display: flex; align-items: flex-end; gap: 6px; height: 190px; padding-top: 1.2rem; }
.bar { flex: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 4px; min-width: 0; }
.bar i {
    display: block; width: 100%;
    min-height: 3px;
    border-radius: 6px 6px 2px 2px;
    background: var(--gradient);
}
.bars.alt .bar i { background: linear-gradient(180deg, #25d366, #128c7e); }
.bar b { font-size: .7rem; color: var(--muted); font-weight: 500; }
.bar em { font-style: normal; font-size: .62rem; color: var(--muted); white-space: nowrap; }

.cover { display: grid; grid-template-columns: 1.3fr 1fr; gap: 1.5rem; align-items: start; }
.cover-preview {
    aspect-ratio: 16 / 9;
    border-radius: 14px;
    border: 1px dashed var(--border);
    background: var(--bg-2);
    display: grid; place-items: center;
    overflow: hidden;
}
.cover-preview img { width: 100%; height: 100%; object-fit: cover; }
.cover-preview p { color: var(--muted); font-size: .9rem; padding: 1rem; text-align: center; }
.cover-actions { display: grid; gap: 1rem; }
.cover-actions form { display: grid; gap: .7rem; }
.file input {
    width: 100%;
    padding: .7rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg-2);
    color: var(--text);
    font: inherit;
    font-size: .85rem;
}
.err { color: #ff8a8a; font-size: .8rem; }
.hint { color: var(--muted); font-size: .8rem; }

.btn {
    padding: .75rem 1.4rem;
    border-radius: 999px;
    border: none;
    background: var(--gradient);
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    justify-self: start;
}
.btn:hover { filter: brightness(1.1); }
.btn.ghost { background: none; border: 1px solid rgba(255, 99, 99, .5); color: #ffb3b3; }

.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.panel-head h2 { margin: 0; }
.filters { display: flex; gap: .5rem; }
.filters a {
    padding: .35rem .9rem; border-radius: 999px; font-size: .82rem;
    border: 1px solid var(--border); color: var(--muted);
}
.filters a.on { background: var(--blue); border-color: var(--blue); color: #fff; }
.filters a:hover { text-decoration: none; border-color: var(--cyan); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .87rem; }
th { text-align: left; color: var(--muted); font-weight: 500; font-size: .78rem; padding: .6rem .7rem; border-bottom: 1px solid var(--border); }
td { padding: .8rem .7rem; border-bottom: 1px solid rgba(43, 169, 224, .08); vertical-align: top; }
tr.unread td:first-child { box-shadow: inset 3px 0 0 var(--cyan); }
tr.unread td { background: rgba(43, 169, 224, .05); }
.nowrap { white-space: nowrap; color: var(--muted); }
.msg-cell { max-width: 340px; color: var(--muted); }
.tag { display: inline-block; padding: .2rem .65rem; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); font-size: .75rem; white-space: nowrap; }
.chip {
    background: none; border: 1px solid var(--border); color: var(--text);
    padding: .35rem .8rem; border-radius: 999px; font: inherit; font-size: .75rem;
    cursor: pointer; white-space: nowrap;
}
.chip:hover { border-color: var(--cyan); }
.pager { display: flex; justify-content: center; gap: 1.2rem; margin-top: 1rem; font-size: .85rem; color: var(--muted); }
.empty { color: var(--muted); padding: 1.5rem 0; text-align: center; }

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1.5rem;
    background:
        radial-gradient(ellipse at 20% 10%, rgba(28, 61, 143, .55), transparent 55%),
        radial-gradient(ellipse at 85% 90%, rgba(18, 74, 117, .5), transparent 50%),
        var(--bg);
}
.login-card {
    width: min(400px, 100%);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2.2rem 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
    text-align: center;
}
.login-card > img { height: 70px; margin-bottom: 1rem; }
.login-card h1 { font-size: 1.35rem; margin-bottom: .4rem; }
.login-card form { display: grid; gap: .5rem; text-align: left; margin-top: 1.5rem; }
.login-card label { font-size: .82rem; color: var(--muted); margin-top: .4rem; }
.login-card input[type=text], .login-card input[type=password] {
    padding: .8rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg-2);
    color: var(--text);
    font: inherit;
}
.login-card input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(43, 169, 224, .18); }
.login-card .btn { justify-self: stretch; margin-top: 1rem; }
.login-card .back { display: inline-block; margin-top: 1.4rem; font-size: .85rem; color: var(--muted); }

@media (max-width: 860px) {
    .charts, .cover { grid-template-columns: 1fr; }
    .bar em { display: none; }
}
@media (max-width: 700px) {
    .top nav { gap: .9rem; }
    .top nav a, .brand span { white-space: nowrap; }
    .kpis { grid-template-columns: 1fr 1fr; gap: .7rem; }
    .kpi { padding: .9rem 1rem; }
    .kpi b { font-size: 1.5rem; }
    .panel { padding: 1.1rem; }
}
@media (max-width: 900px) {
    .table-wrap { overflow: visible; }
    table, tbody, tr, td { display: block; width: 100%; }
    thead { display: none; }
    tr {
        border: 1px solid var(--border);
        border-radius: 14px;
        padding: .8rem 1rem;
        margin-bottom: .8rem;
        background: var(--bg-2);
    }
    tr.unread { border-color: rgba(43, 169, 224, .55); background: rgba(43, 169, 224, .07); }
    td, tr.unread td { border: none; padding: .25rem 0; background: none; }
    tr.unread td:first-child { box-shadow: none; }
    td[data-label]::before {
        content: attr(data-label);
        display: block;
        font-size: .7rem;
        color: var(--muted);
        text-transform: uppercase;
        letter-spacing: .06em;
    }
    td a { overflow-wrap: anywhere; }
    .msg-cell { max-width: none; }
    td .chip { margin-top: .5rem; }
}
@media (max-width: 420px) {
    .brand span { display: none; }
}