:root {
    --bg: #050805;
    --bg-soft: #0b110c;
    --panel: rgba(20, 24, 20, 0.94);
    --panel-strong: rgba(28, 34, 28, 0.98);
    --line: rgba(115, 140, 115, 0.22);
    --text: #e3efe3;
    --muted: #93a193;
    --green: #3ec46d;
    --green-dark: #277d45;
    --danger: #b54a4a;
    --danger-dark: #863434;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
    --radius: 22px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(52, 125, 67, 0.22), transparent 38%),
        radial-gradient(circle at bottom right, rgba(40, 95, 54, 0.18), transparent 33%),
        linear-gradient(180deg, #030403, #0a0f0b 52%, #050805);
    position: relative;
    overflow-x: hidden;
}

a {
    color: #a7edbd;
    text-decoration: none;
}

a:hover {
    color: #d4f7df;
}

.bg-glow {
    position: fixed;
    width: 280px;
    height: 280px;
    border-radius: 999px;
    filter: blur(90px);
    opacity: 0.28;
    pointer-events: none;
}

.bg-glow-a {
    top: -120px;
    left: -80px;
    background: #245a35;
}

.bg-glow-b {
    right: -80px;
    bottom: -120px;
    background: #19492b;
}

.topbar {
    max-width: 1180px;
    margin: 0 auto;
    padding: 28px 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.brand {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: #f3fff5;
}

.topnav {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.pill,
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(93, 152, 104, 0.35);
    background: rgba(56, 81, 60, 0.2);
    color: #c9f7d4;
    border-radius: 999px;
    padding: 7px 12px;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.page-shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 28px 24px 48px;
}

.auth-card,
.wide-card,
.panel-card {
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(18, 24, 19, 0.94), rgba(11, 15, 11, 0.98));
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.auth-card {
    max-width: 520px;
    margin: 48px auto 0;
    padding: 28px;
}

.wide-card,
.panel-card {
    padding: 24px;
}

.card-head h1,
.card-head h2,
.card-toolbar h1,
.card-toolbar h2 {
    margin: 12px 0 10px;
    font-size: clamp(1.5rem, 2vw, 2.2rem);
}

.card-head p,
.card-toolbar p,
.helper-note,
.meta-label,
.empty-state {
    color: var(--muted);
}

.stack-form,
.generator-form {
    display: grid;
    gap: 16px;
    margin-top: 18px;
}

label {
    display: grid;
    gap: 8px;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid rgba(115, 140, 115, 0.26);
    background: rgba(6, 9, 7, 0.95);
    color: var(--text);
    border-radius: 14px;
    padding: 14px 15px;
    outline: none;
    font-size: 0.97rem;
}

textarea {
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: rgba(87, 210, 122, 0.7);
    box-shadow: 0 0 0 3px rgba(62, 196, 109, 0.12);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 14px;
    padding: 12px 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

.btn:disabled {
    cursor: wait;
    opacity: 0.7;
    transform: none;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(180deg, var(--green), var(--green-dark));
    color: #041009;
}

.btn-muted {
    background: #1b221c;
    color: #dce8dc;
    border: 1px solid rgba(115, 140, 115, 0.24);
}

.btn-danger {
    background: linear-gradient(180deg, var(--danger), var(--danger-dark));
    color: #fff3f3;
}

.btn-small {
    padding: 9px 12px;
    font-size: 0.88rem;
}

.alert {
    padding: 14px 16px;
    border-radius: 14px;
    margin-top: 16px;
}

.alert-error {
    background: rgba(145, 47, 47, 0.16);
    border: 1px solid rgba(181, 74, 74, 0.32);
    color: #ffb4b4;
}

.alert-success {
    background: rgba(50, 132, 71, 0.16);
    border: 1px solid rgba(62, 196, 109, 0.3);
    color: #bbf4ca;
}

.card-toolbar,
.action-row,
.stats-row,
.message-meta-grid {
    display: flex;
    gap: 14px;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.inline-form {
    margin: 0;
}

.table-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(330px, 0.85fr);
    gap: 24px;
}

.stats-row {
    margin-top: 22px;
    align-items: stretch;
}

.stat-card,
.meta-card {
    flex: 1 1 150px;
    background: var(--panel-strong);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 18px;
}

.stat-card span,
.meta-card span {
    display: block;
    color: var(--muted);
    font-size: 0.88rem;
    margin-bottom: 10px;
}

.stat-card strong,
.meta-card strong {
    font-size: 1.1rem;
}

.helper-note {
    margin-top: 18px;
    padding: 14px 16px;
    border-left: 4px solid rgba(62, 196, 109, 0.5);
    background: rgba(18, 27, 19, 0.84);
    border-radius: 14px;
}

.compact-note {
    margin-top: 10px;
    margin-bottom: 0;
}

.result-card {
    margin-top: 20px;
    border: 1px solid var(--line);
    background: rgba(11, 16, 12, 0.92);
    border-radius: 18px;
    padding: 18px;
}

.result-box {
    min-height: 220px;
    margin-top: 14px;
    font-family: Consolas, Monaco, monospace;
}

.table-wrap {
    overflow-x: auto;
    margin-top: 18px;
}

.message-table {
    width: 100%;
    border-collapse: collapse;
}

.message-table th,
.message-table td {
    text-align: left;
    padding: 14px 10px;
    border-bottom: 1px solid rgba(115, 140, 115, 0.14);
    vertical-align: top;
}

.message-table th {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #c6d6c6;
}

.message-link {
    font-weight: 700;
}

.message-body {
    margin-top: 24px;
    border: 1px solid var(--line);
    background: rgba(8, 11, 8, 0.94);
    border-radius: 18px;
    padding: 20px;
}

.message-body pre {
    margin: 0;
    white-space: pre-wrap;
    font-family: inherit;
    line-height: 1.65;
}

.html-body {
    overflow-wrap: anywhere;
}

.message-view-switch {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.message-view-switch .btn.is-active {
    background: linear-gradient(180deg, var(--green), var(--green-dark));
    color: #041009;
    border-color: transparent;
}

.message-panel {
    display: none;
    margin-top: 18px;
}

.message-panel.is-active {
    display: block;
}

.panel-caption {
    display: grid;
    gap: 4px;
    margin-bottom: 14px;
}

.panel-title {
    font-size: 1rem;
    font-weight: 700;
    color: #eef8ee;
}

.panel-description {
    color: var(--muted);
    font-size: 0.92rem;
}

.message-render-frame {
    width: 100%;
    min-height: 620px;
    border: 1px solid var(--line);
    background: #ffffff;
    border-radius: 18px;
}

.message-headers pre {
    font-family: Consolas, Monaco, monospace;
    font-size: 0.92rem;
}

.empty-state {
    text-align: center;
    padding: 34px 16px;
}

@media (max-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .topbar,
    .page-shell {
        padding-left: 16px;
        padding-right: 16px;
    }

    .auth-card,
    .wide-card,
    .panel-card {
        padding: 18px;
    }

    .message-render-frame {
        min-height: 460px;
    }
}