:root {
    --terminal-bg: #0d1110;
    --terminal-panel: #111917;
    --terminal-panel-deep: #0a100e;
    --terminal-line: #33413c;
    --terminal-text: #e7eee8;
    --terminal-muted: #91a197;
    --terminal-accent: #8bd874;
    --terminal-accent-ink: #0c160d;
    --terminal-error: #ffb0a5;
    --terminal-dim: rgba(139, 216, 116, 0.08);
    font-family: Consolas, "Cascadia Mono", "Courier New", monospace;
    color: var(--terminal-text);
    background: var(--terminal-bg);
}

* { box-sizing: border-box; }

html, body { min-height: 100%; margin: 0; }

body {
    min-width: 320px;
    height: 100dvh;
    overflow: hidden;
    background-color: var(--terminal-bg);
    background-image: repeating-linear-gradient(0deg, transparent 0 3px, rgba(139, 216, 116, 0.018) 3px 4px);
}

button, textarea { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }

.skip-link {
    position: fixed;
    top: 8px;
    left: 8px;
    z-index: 2;
    padding: 8px;
    color: var(--terminal-accent-ink);
    background: var(--terminal-accent);
    transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.terminal-frame {
    width: min(1440px, 100%);
    height: 100dvh;
    min-height: 100dvh;
    margin: 0 auto;
    padding: 18px;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    gap: 1px;
    background: var(--terminal-line);
    overflow: hidden;
}

.terminal-topbar, .terminal-footer, .terminal-sidebar, .terminal-console { background: var(--terminal-panel); }

.terminal-topbar {
    min-height: 58px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.terminal-brand {
    color: var(--terminal-accent);
    text-decoration: none;
    font-size: clamp(0.86rem, 2vw, 1.05rem);
    font-weight: 700;
    letter-spacing: 0.06em;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.topbar-logo { width: 26px; height: 26px; display: block; object-fit: contain; }
.terminal-brand small { margin-left: 4px; color: var(--terminal-muted); font-size: 0.69rem; font-weight: 400; letter-spacing: 0.1em; }
.topbar-actions { display: flex; align-items: center; gap: 16px; }
.session-label, .command-label, .console-header, .console-hint, .terminal-footer { color: var(--terminal-muted); font-size: 0.7rem; letter-spacing: 0.08em; }

.command-button, .send-button {
    border: 1px solid var(--terminal-line);
    border-radius: 0;
    min-height: 34px;
    padding: 0 10px;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    transition: transform 140ms ease, color 140ms ease, background-color 140ms ease, border-color 140ms ease;
}
.command-button { color: var(--terminal-muted); background: transparent; }
.command-button:hover { color: var(--terminal-accent); border-color: var(--terminal-accent); }
.command-button:active, .send-button:active { transform: translateY(1px); }

.terminal-layout { min-height: 0; display: grid; grid-template-columns: minmax(230px, 0.29fr) minmax(0, 1fr); gap: 1px; background: var(--terminal-line); }

.terminal-sidebar {
    min-height: 0;
    overflow-y: auto;
    padding: 26px 20px 20px;
    display: flex;
    flex-direction: column;
}
.terminal-logo { width: 58px; height: 58px; display: block; object-fit: contain; border: 1px solid var(--terminal-accent); padding: 4px; }
.command-label { margin: 18px 0 8px; color: var(--terminal-accent); }
h1 { margin: 0; font-size: clamp(1.4rem, 3vw, 2.1rem); line-height: 0.95; letter-spacing: -0.07em; }
.terminal-role { margin: 16px 0 0; color: var(--terminal-muted); font-size: 0.76rem; line-height: 1.55; letter-spacing: 0.04em; }

.terminal-data { margin: 30px 0; border-top: 1px solid var(--terminal-line); }
.terminal-data div { padding: 12px 0; border-bottom: 1px solid var(--terminal-line); }
.terminal-data dt { color: var(--terminal-muted); font-size: 0.67rem; letter-spacing: 0.08em; }
.terminal-data dd { margin: 5px 0 0; color: var(--terminal-text); font-size: 0.8rem; }

.terminal-links { margin-top: auto; display: grid; }
.terminal-links a { padding: 10px 0; border-top: 1px solid var(--terminal-line); color: var(--terminal-muted); text-decoration: none; font-size: 0.74rem; display: flex; justify-content: space-between; transition: color 140ms ease, background-color 140ms ease; }
.terminal-links a:hover { color: var(--terminal-accent); background: var(--terminal-dim); }
.terminal-links a:last-child { border-bottom: 1px solid var(--terminal-line); }

.terminal-console { min-height: 0; display: grid; grid-template-rows: auto minmax(0, 1fr) auto auto; }
.console-header { padding: 14px 20px; display: flex; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--terminal-line); }
.console-ready { color: var(--terminal-accent); }
.console-output { min-height: 0; overflow-y: auto; padding: 24px 28px; scrollbar-color: var(--terminal-line) var(--terminal-panel-deep); }

.message { max-width: 850px; margin-bottom: 22px; }
.message-meta { margin-bottom: 7px; color: var(--terminal-muted); font-size: 0.7rem; letter-spacing: 0.08em; }
.message-meta strong { color: var(--terminal-accent); font-weight: 700; }
.message-meta time { margin-left: 9px; color: var(--terminal-muted); }
.message-content { color: var(--terminal-text); font-size: 0.93rem; line-height: 1.72; overflow-wrap: anywhere; }
.message-content strong { color: var(--terminal-accent); }
.message-content code { padding: 0.12em 0.32em; color: var(--terminal-accent); background: var(--terminal-dim); }
.user { margin-left: auto; max-width: min(780px, 92%); }
.user .message-meta { text-align: right; }
.user .message-content { padding: 12px 14px; border-left: 2px solid var(--terminal-accent); background: var(--terminal-panel-deep); }
.error-message .message-content { color: var(--terminal-error); }

.welcome { max-width: 760px; }
.welcome h3 { margin: 0 0 10px; color: var(--terminal-accent); font-size: 1rem; font-weight: 700; }
.welcome h3::before { content: "> "; }
.welcome p { margin: 0 0 18px; color: var(--terminal-text); font-size: 0.92rem; line-height: 1.72; }
.suggestion-list { display: flex; flex-wrap: wrap; gap: 8px; }
.suggestion { border: 1px solid var(--terminal-line); border-radius: 0; padding: 8px 9px; color: var(--terminal-muted); background: transparent; font-size: 0.73rem; letter-spacing: 0.03em; transition: color 140ms ease, border-color 140ms ease, background-color 140ms ease; }
.suggestion::before { content: "RUN "; color: var(--terminal-accent); }
.suggestion:hover { color: var(--terminal-text); border-color: var(--terminal-accent); background: var(--terminal-dim); }

.console-input { padding: 14px 18px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: end; gap: 12px; border-top: 1px solid var(--terminal-line); background: var(--terminal-panel-deep); }
.prompt { padding-bottom: 13px; color: var(--terminal-accent); font-size: 0.78rem; white-space: nowrap; }
#message { min-height: 42px; max-height: 150px; width: 100%; resize: none; padding: 10px 0; border: 0; outline: 0; color: var(--terminal-text); background: transparent; font-size: 0.9rem; line-height: 1.45; }
#message::placeholder { color: var(--terminal-muted); opacity: 0.85; }
#message:focus { box-shadow: inset 0 -1px 0 var(--terminal-accent); }
.send-button { align-self: center; color: var(--terminal-accent-ink); border-color: var(--terminal-accent); background: var(--terminal-accent); }
.send-button:hover { color: var(--terminal-text); background: var(--terminal-panel); }
.console-hint { margin: 0; padding: 0 18px 14px; background: var(--terminal-panel-deep); }

.thinking { display: flex; align-items: center; gap: 5px; color: var(--terminal-muted); }
.thinking i { display: block; width: 5px; height: 5px; background: var(--terminal-accent); animation: terminal-pulse 900ms steps(2, end) infinite; }
.thinking i:nth-child(2) { animation-delay: 150ms; }
.thinking i:nth-child(3) { animation-delay: 300ms; }

.terminal-footer { min-height: 42px; padding: 10px 16px; display: flex; align-items: center; justify-content: space-between; gap: 16px; line-height: 1.4; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
button:focus-visible, textarea:focus-visible, a:focus-visible { outline: 2px solid var(--terminal-accent); outline-offset: 2px; }
:disabled { cursor: not-allowed; opacity: 0.55; }

@keyframes terminal-pulse { 50% { opacity: 0.22; } }

@media (max-width: 800px) {
    .terminal-frame { padding: 10px; }
    .terminal-layout { grid-template-columns: 1fr; }
    .terminal-sidebar { display: none; }
    .terminal-footer { display: none; }
}

@media (max-width: 560px) {
    .terminal-topbar { padding: 10px 12px; }
    .terminal-brand small, .session-label { display: none; }
    .console-output { padding: 20px 15px; }
    .console-input { grid-template-columns: 1fr auto; gap: 8px; padding: 12px; }
    .prompt { grid-column: 1 / -1; padding: 0; font-size: 0.7rem; }
    .console-hint { padding: 0 12px 12px; font-size: 0.62rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}