/* SkyCoax AI — тема Matrix: неоново-зелёный на чёрном, моноширинный, паук как иконка */
:root {
  --green: #22ff88;
  --green-bright: #6bffb0;
  --green-dim: #12b866;
  --green-faint: #0c7a45;
  --accent: #22ff88;
  --bg: #000400;
  --bg-elev: #04120a;
  --panel: #06170d;
  --bg-input: #05140b;
  --text: #35ff9a;
  --text-dim: #17a862;
  --text-faint: #0e6b40;
  --border: #0e5f3a;
  --border-soft: #0a3b26;
  --user-bg: #06150d;
  --code-bg: #030d07;
  --code-border: #0e5f3a;
  --danger: #ff5f5f;
  --glow: 0 0 8px rgba(34,255,136,.55);
  --glow-soft: 0 0 24px rgba(34,255,136,.22);
  --radius: 6px;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;
  --spider: url("/spider.jpg");
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-shadow: 0 0 2px rgba(34,255,136,.25);
}

/* цифровой дождь на фоне */
#rain {
  position: fixed; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  opacity: .16; pointer-events: none;
}

#app { position: relative; z-index: 1; display: flex; flex-direction: column; height: 100dvh; }

.blink { animation: blink 1.05s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 11px 18px;
  border-bottom: 1px solid var(--border-soft);
  background: rgba(0,4,0,.72);
  backdrop-filter: blur(3px);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: center; gap: 11px; }
.logo {
  width: 34px; height: 34px; flex: none;
  background: var(--spider) center/contain no-repeat;
  mix-blend-mode: screen;      /* чёрный фон картинки исчезает, остаётся только паук */
}
.brand-name { font-weight: 700; letter-spacing: 1.5px; color: var(--green-bright); text-shadow: var(--glow); }
.icon-btn {
  display: grid; place-items: center;
  width: 36px; height: 36px; border-radius: var(--radius);
  background: transparent; color: var(--text-dim);
  border: 1px solid var(--border-soft); cursor: pointer;
  transition: color .15s, border-color .15s, box-shadow .15s;
}
.icon-btn:hover { color: var(--green); border-color: var(--green-dim); box-shadow: var(--glow); }

/* ---------- thread ---------- */
.scroll { flex: 1; overflow-y: auto; scroll-behavior: smooth; overscroll-behavior: contain; }
.thread { max-width: 780px; margin: 0 auto; padding: 26px 20px 40px; }

.msg { display: flex; gap: 13px; margin: 0 0 24px; animation: rise .2s ease; }
@keyframes rise { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }
.avatar {
  width: 32px; height: 32px; flex: none; margin-top: 2px;
  display: grid; place-items: center; font-size: 15px; font-weight: 700;
}
.msg.user .avatar { color: var(--green-dim); }
.msg.assistant .avatar {
  background: var(--spider) center/contain no-repeat;
  mix-blend-mode: screen;      /* сливается с фоном, без квадрата */
}
.bubble { min-width: 0; flex: 1; }
.role { font-size: 11px; color: var(--text-faint); margin-bottom: 4px; letter-spacing: 1px; text-transform: uppercase; }
.content { word-wrap: break-word; overflow-wrap: anywhere; color: var(--text); }

/* markdown */
.content p { margin: 0 0 12px; }
.content > :first-child { margin-top: 0; }
.content > :last-child { margin-bottom: 0; }
.content h1, .content h2, .content h3 { line-height: 1.3; margin: 20px 0 10px; font-weight: 700; color: var(--green-bright); text-shadow: var(--glow); }
.content h1 { font-size: 1.35em; } .content h2 { font-size: 1.18em; } .content h3 { font-size: 1.05em; }
.content ul, .content ol { margin: 0 0 12px; padding-left: 22px; }
.content li { margin: 4px 0; }
.content li::marker { color: var(--green-dim); }
.content a { color: var(--green-bright); text-decoration: underline; text-underline-offset: 2px; }
.content blockquote {
  margin: 0 0 12px; padding: 4px 14px; border-left: 2px solid var(--green-dim);
  color: var(--text-dim);
}
.content code:not(pre code) {
  background: var(--code-bg); border: 1px solid var(--code-border);
  padding: .08em .4em; border-radius: 4px; font-size: .9em; color: var(--green-bright);
}
.content pre {
  background: var(--code-bg); border: 1px solid var(--code-border);
  border-radius: 8px; margin: 0 0 14px; overflow: hidden; box-shadow: inset 0 0 20px rgba(34,255,136,.05);
}
.code-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 12px; font-size: 11px; color: var(--text-faint); letter-spacing: .5px;
  border-bottom: 1px solid var(--code-border); background: rgba(34,255,136,.04);
}
.copy-btn {
  background: transparent; border: 1px solid var(--border-soft); color: var(--text-dim);
  border-radius: 4px; padding: 2px 9px; font-size: 11px; cursor: pointer; font-family: inherit;
  transition: color .15s, border-color .15s, box-shadow .15s;
}
.copy-btn:hover { color: var(--green); border-color: var(--green-dim); box-shadow: var(--glow); }
.content pre code {
  display: block; padding: 12px 14px; overflow-x: auto;
  font-size: 13px; line-height: 1.55; color: var(--green-bright); text-shadow: none;
}
.content table { border-collapse: collapse; margin: 0 0 14px; width: 100%; font-size: .95em; }
.content th, .content td { border: 1px solid var(--border-soft); padding: 6px 10px; text-align: left; }
.content th { background: rgba(34,255,136,.06); color: var(--green-bright); }
.content hr { border: none; border-top: 1px solid var(--border-soft); margin: 18px 0; }

.caret::after {
  content: "▊"; color: var(--green); margin-left: 1px;
  animation: blink 1s steps(2) infinite; text-shadow: var(--glow);
}

.status-line { color: var(--text-faint); font-style: italic; font-size: 13px; }
.err-line {
  color: var(--danger); background: rgba(255,95,95,.08);
  border: 1px solid rgba(255,95,95,.35);
  padding: 8px 12px; border-radius: 6px; font-size: 13px; text-shadow: none;
}

/* ---------- welcome ---------- */
.welcome { text-align: center; padding: 12vh 4px 20px; animation: rise .3s ease; }
.welcome-logo {
  width: 168px; height: 168px; margin: 0 auto 20px;
  background: var(--spider) center/contain no-repeat;
  mix-blend-mode: screen;      /* без чёрного квадрата — только светящийся паук */
  animation: pulse 3.2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: .82; transform: scale(1); } 50% { opacity: 1; transform: scale(1.04); } }
.welcome-prompt { font-size: 20px; letter-spacing: 2px; color: var(--green-bright); text-shadow: var(--glow); }

/* ---------- composer ---------- */
.composer-wrap { max-width: 780px; width: 100%; margin: 0 auto; padding: 0 16px 16px; }
.composer {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 8px 6px 14px;
  box-shadow: 0 0 0 rgba(34,255,136,0);
  transition: border-color .15s, box-shadow .15s;
}
.composer:focus-within { border-color: var(--green); box-shadow: var(--glow-soft); }
.prompt-sign { color: var(--green); font-weight: 700; align-self: center; }
.input {
  flex: 1; resize: none; border: none; outline: none; background: transparent;
  color: var(--green-bright); font-family: inherit; font-size: 15px; line-height: 1.5;
  max-height: 220px; padding: 7px 0; overflow-y: auto; text-shadow: 0 0 3px rgba(34,255,136,.3);
}
.input::placeholder { color: var(--text-faint); text-shadow: none; }
.send-btn {
  flex: none; width: 38px; height: 38px; border-radius: var(--radius);
  border: 1px solid var(--green-dim); cursor: pointer; display: grid; place-items: center;
  background: rgba(34,255,136,.1); color: var(--green);
  transition: background .15s, box-shadow .15s, opacity .15s, transform .1s;
}
.send-btn:hover { background: rgba(34,255,136,.2); box-shadow: var(--glow); }
.send-btn:disabled { opacity: .35; cursor: default; }
.send-btn:active { transform: scale(.94); }
.stop-btn { color: var(--danger); border-color: rgba(255,95,95,.5); background: rgba(255,95,95,.1); }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; background: rgba(0,4,0,.92); backdrop-filter: blur(4px); display: grid; place-items: center; z-index: 50; padding: 20px; }
.modal[hidden] { display: none; }        /* чиним: без этого класс .modal перебивал атрибут hidden */
.composer.locked { opacity: .4; pointer-events: none; filter: blur(1px); }
.modal-card {
  background: var(--bg-elev); border: 1px solid var(--green-dim); border-radius: 8px;
  padding: 28px 26px; width: 100%; max-width: 340px; box-shadow: var(--glow-soft); text-align: center;
}
.modal-logo {
  width: 84px; height: 84px; margin: 0 auto 14px;
  background: var(--spider) center/contain no-repeat;
  mix-blend-mode: screen;
}
.modal-card h2 { margin: 0 0 16px; font-size: 18px; letter-spacing: 4px; color: var(--green-bright); text-shadow: var(--glow); }
.auth-input, .primary-btn { width: 100%; border-radius: 6px; font-size: 15px; padding: 11px 13px; margin-bottom: 10px; font-family: inherit; }
.auth-input { background: var(--bg-input); border: 1px solid var(--border); color: var(--green-bright); }
.auth-input:focus { outline: none; border-color: var(--green); box-shadow: var(--glow-soft); }
.primary-btn { background: rgba(34,255,136,.14); color: var(--green-bright); border: 1px solid var(--green-dim); cursor: pointer; font-weight: 700; letter-spacing: 1px; }
.primary-btn:hover { background: rgba(34,255,136,.26); box-shadow: var(--glow); }
.auth-err { color: var(--danger); font-size: 12px; min-height: 15px; text-shadow: none; }

/* скроллбары */
.scroll::-webkit-scrollbar, .input::-webkit-scrollbar, pre code::-webkit-scrollbar { width: 9px; height: 9px; }
.scroll::-webkit-scrollbar-thumb, pre code::-webkit-scrollbar-thumb { background: var(--green-faint); border-radius: 6px; border: 2px solid var(--bg); }
.scroll::-webkit-scrollbar-thumb:hover { background: var(--green-dim); }