:root {
    --bg: #06131d;
    --bg-soft: #0d1d2a;
    --panel: rgba(10, 25, 37, 0.9);
    --panel-border: rgba(133, 195, 255, 0.18);
    --text: #eef6ff;
    --muted: #95abc1;
    --accent: #57d5a3;
    --accent-strong: #0cb074;
    --accent-soft: rgba(87, 213, 163, 0.18);
    --secondary: rgba(133, 195, 255, 0.14);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(87, 213, 163, 0.2), transparent 34%),
        radial-gradient(circle at right, rgba(109, 168, 255, 0.18), transparent 32%),
        linear-gradient(180deg, #071018 0%, #08141f 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: radial-gradient(circle at center, black 42%, transparent 92%);
}

.shell {
    width: min(1380px, calc(100vw - 32px));
    margin: 24px auto 40px;
}

.hero,
.panel {
    border: 1px solid var(--panel-border);
    background: var(--panel);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
}

.hero {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding: 28px 32px;
    border-radius: var(--radius-lg);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(109, 168, 255, 0.12);
    color: #b9d5ff;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1,
.panel h2 {
    margin: 14px 0 10px;
    font-size: clamp(30px, 4vw, 46px);
    line-height: 1.05;
}

.hero p,
.panel p,
.status-note,
.hint,
.message-meta,
.lab-meta,
.tip-list {
    color: var(--muted);
}

.hero p {
    max-width: 760px;
    margin: 0;
    font-size: 15px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.grid {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.7fr);
    gap: 20px;
    margin-top: 20px;
}

.panel {
    border-radius: var(--radius-lg);
    padding: 22px;
}

.panel-main {
    min-height: 760px;
    display: flex;
    flex-direction: column;
}

.panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.panel-header-tight h2 {
    margin-top: 0;
    font-size: 22px;
}

.panel-header h2 {
    margin-top: 0;
    font-size: 24px;
}

.panel-header p {
    margin: 0;
    font-size: 14px;
}

.identity-card {
    display: grid;
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    gap: 12px;
    min-width: min(100%, 360px);
}

.identity-card label,
.composer textarea,
.stat-card,
.message-bubble,
.lab-item {
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
}

.identity-card label {
    display: grid;
    gap: 6px;
    padding: 12px;
    border-radius: var(--radius-md);
}

.identity-card span {
    font-size: 12px;
    color: var(--muted);
}

input,
textarea,
button {
    font: inherit;
}

input,
textarea {
    width: 100%;
    border: none;
    outline: none;
    resize: none;
    color: var(--text);
    background: transparent;
}

.quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.quick-actions button,
.btn {
    cursor: pointer;
    border: none;
    border-radius: 999px;
    padding: 12px 16px;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    text-decoration: none;
}

.quick-actions button {
    background: var(--secondary);
    color: var(--text);
}

.btn:hover,
.quick-actions button:hover {
    transform: translateY(-1px);
}

.btn-primary {
    color: #032012;
    background: linear-gradient(135deg, var(--accent) 0%, #91f0cd 100%);
    box-shadow: 0 16px 30px rgba(12, 176, 116, 0.22);
}

.btn-secondary {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
}

.chat-log {
    flex: 1;
    min-height: 420px;
    padding-right: 4px;
    overflow: auto;
}

.message {
    display: flex;
    margin-bottom: 14px;
}

.message.user {
    justify-content: flex-end;
}

.message-bubble {
    max-width: min(720px, 92%);
    padding: 14px 16px;
    border-radius: 18px;
    line-height: 1.7;
    white-space: pre-wrap;
}

.message.user .message-bubble {
    background: linear-gradient(135deg, rgba(87, 213, 163, 0.22), rgba(87, 213, 163, 0.08));
    border-color: rgba(87, 213, 163, 0.24);
}

.message.agent .message-bubble {
    background: rgba(255, 255, 255, 0.04);
}

.message-meta {
    margin-top: 10px;
    font-size: 12px;
    font-family: "JetBrains Mono", monospace;
}

.composer {
    margin-top: 18px;
}

.composer textarea {
    padding: 16px 18px;
    border-radius: 22px;
    min-height: 110px;
}

.composer-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 12px;
}

.hint {
    font-size: 12px;
}

.sidebar {
    display: grid;
    gap: 20px;
}

.stat-grid,
.lab-list {
    display: grid;
    gap: 12px;
}

.stat-grid {
    grid-template-columns: repeat(3, 1fr);
}

.stat-card {
    padding: 14px;
    border-radius: var(--radius-md);
}

.stat-card span {
    display: block;
    font-size: 12px;
    color: var(--muted);
}

.stat-card strong {
    display: block;
    margin-top: 8px;
    font-size: 28px;
}

.status-note {
    margin-top: 14px;
    font-size: 13px;
    line-height: 1.6;
}

.lab-item {
    border-radius: var(--radius-md);
    padding: 16px;
}

.lab-item strong {
    display: block;
    font-size: 17px;
}

.lab-meta {
    margin-top: 6px;
    font-size: 13px;
    line-height: 1.7;
}

.tip-list {
    margin: 0;
    padding-left: 18px;
    line-height: 1.8;
    font-size: 14px;
}

@media (max-width: 1080px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .panel-header {
        flex-direction: column;
    }

    .identity-card {
        width: 100%;
    }
}

@media (max-width: 720px) {
    .shell {
        width: min(100vw - 18px, 100%);
        margin: 10px auto 24px;
    }

    .hero,
    .panel {
        padding: 18px;
        border-radius: 22px;
    }

    .hero {
        flex-direction: column;
    }

    .hero-actions,
    .identity-card,
    .stat-grid,
    .composer-actions {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .stat-grid {
        display: grid;
    }

    .quick-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .quick-actions button,
    .btn {
        width: 100%;
        text-align: center;
    }
}