front_end/style.css

/* ══════════════════════════════════════════════
   GITREAD — style.css
   Black / Red / Orange Theme
   ══════════════════════════════════════════════ */

:root {
  --bg:           #060606;
  --surface:      #0c0808;
  --surface2:     #110a0a;
  --surface3:     #160c0c;
  --border:       #1a0800;
  --border2:      #2a1000;
  --accent:       #d94f00;
  --accent2:      #ff6a00;
  --accent-glow:  rgba(217, 79, 0, 0.18);
  --accent-soft:  rgba(217, 79, 0, 0.07);
  --warn:         #f59e0b;
  --warn-bg:      rgba(245, 158, 11, 0.07);
  --red:          #f87171;
  --green:        #34d399;
  --orange:       #ff6a00;
  --text:         #eeeeee;
  --text-dim:     #888888;
  --muted:        #333333;
  --font-mono:    'Space Mono', monospace;
  --font-head:    'Syne', sans-serif;
  --header-h:     56px;
  --footer-h:     90px;
  --max-chat:     800px;
  --radius:       10px;
  --radius-sm:    6px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Canvas background ── */
#bgCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Top accent line ── */
.top-accent-line {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #d94f00, #ff6a00, transparent);
  z-index: 999;
}

/* ── Corner brackets ── */
.corner-bracket {
  position: fixed;
  width: 18px;
  height: 18px;
  z-index: 100;
  pointer-events: none;
}
.corner-bracket.tl { top: 64px;  left: 16px;  border-top: 1px solid #2a0e00; border-left: 1px solid #2a0e00; }
.corner-bracket.tr { top: 64px;  right: 16px; border-top: 1px solid #2a0e00; border-right: 1px solid #2a0e00; }
.corner-bracket.bl { bottom: 44px; left: 16px;  border-bottom: 1px solid #2a0e00; border-left: 1px solid #2a0e00; }
.corner-bracket.br { bottom: 44px; right: 16px; border-bottom: 1px solid #2a0e00; border-right: 1px solid #2a0e00; }

/* ══════════════ HEADER ══════════════ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(6, 6, 6, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  z-index: 500;
}

.logo {
  display: flex;
  align-items: center;
  gap: 11px;
}

.logo-mark svg { display: block; }

.logo-text {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  color: var(--text);
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 5px 14px 5px 10px;
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--muted);
  transition: background 0.4s, box-shadow 0.4s;
  flex-shrink: 0;
}

.status-dot.active {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 1.6s ease-in-out infinite;
}

.status-dot.chat { background: var(--accent2); box-shadow: 0 0 8px var(--accent2); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ══════════════ WARNING BANNER ══════════════ */
.warning-banner {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  background: var(--warn-bg);
  border-bottom: 1px solid rgba(245, 158, 11, 0.2);
  color: var(--warn);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 9px 20px;
  z-index: 400;
  letter-spacing: 0.04em;
}

.warning-banner.hidden { display: none; }
.warn-icon { font-size: 0.95rem; }

#dismissWarning {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--warn);
  cursor: pointer;
  font-size: 0.85rem;
  opacity: 0.5;
  transition: opacity 0.2s;
  padding: 2px 4px;
}
#dismissWarning:hover { opacity: 1; }

/* ══════════════ BOTTOM BAR ══════════════ */
.bottom-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 36px;
  background: rgba(8, 4, 4, 0.95);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  z-index: 500;
}

.bar-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.68rem;
  color: #1e1e1e;
  letter-spacing: 0.05em;
}

.bar-dot {
  width: 4px; height: 4px;
  border-radius: 50%;
  opacity: 0.5;
  display: inline-block;
}

/* ══════════════ MAIN ══════════════ */
main {
  flex: 1;
  margin-top: var(--header-h);
  position: relative;
  z-index: 1;
}

.page {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.page.active {
  opacity: 1;
  pointer-events: all;
  position: relative;
  min-height: calc(100vh - var(--header-h));
}

/* ══════════════ PAGE 1: LANDING ══════════════ */
#landingPage {
  align-items: center;
  justify-content: center;
}

.landing-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 24px 100px;
  text-align: center;
  max-width: 720px;
  width: 100%;
}

/* Eyebrow */
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  background: #0a0300;
  border: 1px solid #2a0e00;
  border-radius: 100px;
  padding: 6px 18px;
  animation: fadeUp 0.6s ease both;
}

.eyebrow-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

/* Hero title */
.hero-title {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.title-line {
  font-size: clamp(3.5rem, 9vw, 6rem);
  color: var(--text);
  display: block;
  animation: fadeUp 0.7s ease both;
}

.title-line:nth-child(1) { animation-delay: 0.05s; }
.title-line:nth-child(2) { animation-delay: 0.15s; }
.title-line:nth-child(3) { animation-delay: 0.25s; }

.accent-line { color: var(--accent); }

.orange-line {
  background: linear-gradient(90deg, #ff6a00, #ff9a3c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Subtitle */
.hero-sub {
  color: #282828;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 44px;
  animation: fadeUp 0.7s ease 0.3s both;
}

/* Input card */
.input-card {
  width: min(600px, 90vw);
  background: var(--surface);
  border: 1px solid #2a0e00;
  border-radius: var(--radius);
  padding: 6px 6px 6px 0;
  display: flex;
  align-items: center;
  gap: 0;
  position: relative;
  transition: border-color 0.25s, box-shadow 0.25s;
  animation: fadeUp 0.7s ease 0.35s both;
  margin-bottom: 22px;
}

/* Left red accent bar */
.input-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 10px 0 0 10px;
  background: linear-gradient(180deg, #ff6a00, #d94f00);
}

.input-card:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 8px 40px rgba(217,79,0,0.08);
}

.input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
}

.input-icon {
  padding: 0 12px 0 18px;
  color: var(--accent);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.input-wrap input {
  flex: 1;
  background: none;
  border: none;
  padding: 14px 12px 14px 0;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  outline: none;
  letter-spacing: 0.01em;
}

.input-wrap input::placeholder { color: #1e1e1e; }

/* Analyse button */
.analyse-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #d94f00, #ff6a00);
  color: #fff;
  border: none;
  border-radius: 7px;
  padding: 12px 22px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
  flex-shrink: 0;
  white-space: nowrap;
}

.analyse-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(217,79,0,0.4);
}

.analyse-btn:active { transform: translateY(0); }
.btn-arrow-icon { transition: transform 0.2s; }
.analyse-btn:hover .btn-arrow-icon { transform: translateX(2px); }

/* Hint chips */
.landing-hints {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  animation: fadeUp 0.7s ease 0.42s both;
}

.hint-chip {
  background: #0a0505;
  border: 1px solid #160800;
  border-radius: 100px;
  padding: 6px 15px;
  font-size: 0.71rem;
  color: #2e2e2e;
  letter-spacing: 0.03em;
  cursor: default;
  transition: border-color 0.2s, color 0.2s;
}

.hint-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════ PAGE 2: PROCESSING ══════════════ */
#processingPage {
  align-items: center;
  justify-content: center;
}

.processing-inner {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 24px;
  padding: 48px 24px;
  width: min(560px, 92vw);
}

.processing-header {
  display: flex;
  align-items: center;
  gap: 18px;
}

.proc-spinner {
  width: 44px; height: 44px;
  flex-shrink: 0;
}

.spinner-ring {
  width: 100%; height: 100%;
  animation: spinRing 1.1s linear infinite;
  transform-origin: center;
}

@keyframes spinRing { to { transform: rotate(360deg); } }

.proc-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.proc-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: 0.05em;
}

.proc-subtitle {
  font-size: 0.71rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Steps */
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-box {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  opacity: 0;
  transform: translateY(8px);
  animation: stepIn 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  transition: height 0.38s cubic-bezier(0.4, 0, 0.2, 1),
              padding-top 0.38s cubic-bezier(0.4, 0, 0.2, 1),
              padding-bottom 0.38s cubic-bezier(0.4, 0, 0.2, 1),
              background 0.3s ease,
              border-color 0.3s ease;
  overflow: hidden;
}

.step-box.done-green { background: rgba(52,211,153,0.04); border-color: rgba(52,211,153,0.18); }
.step-box.warn-yellow { background: var(--warn-bg); border-color: rgba(245,158,11,0.22); }
.step-box.err-red { background: rgba(248,113,113,0.05); border-color: rgba(248,113,113,0.22); }

.step-title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 22px;
}

.step-box .sub-items {
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: opacity 0.2s;
}

.step-icon-wrap {
  width: 16px; height: 16px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-ring-spinner {
  display: block;
  width: 13px; height: 13px;
  border: 1.5px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spinRing 0.7s linear infinite;
}

.step-status-icon {
  font-size: 11px;
  line-height: 1;
  font-weight: 700;
  display: block;
}
.step-status-icon.green { color: var(--green); }
.step-status-icon.warn  { color: var(--warn); }
.step-status-icon.err   { color: var(--red); }

.step-collapsed-badge {
  font-size: 0.67rem;
  letter-spacing: 0.04em;
  margin-left: 4px;
  opacity: 0;
  transition: opacity 0.25s ease 0.25s;
  font-family: var(--font-mono);
}

.step-collapsed-badge.visible { opacity: 1; }
.step-box.done-green  .step-collapsed-badge { color: var(--green); }
.step-box.warn-yellow .step-collapsed-badge { color: var(--warn); }
.step-box.err-red     .step-collapsed-badge { color: var(--red); }

@keyframes stepIn { to { opacity: 1; transform: translateY(0); } }

/* Processing action card */
.proc-action-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-radius: var(--radius);
  padding: 18px 20px;
  opacity: 0;
  transform: translateY(8px);
  animation: stepIn 0.35s 0.1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  margin-top: 4px;
}

.proc-action-card.proc-action-error {
  background: rgba(248,113,113,0.06);
  border: 1px solid rgba(248,113,113,0.25);
}

.proc-action-card.proc-action-warning {
  background: var(--warn-bg);
  border: 1px solid rgba(245,158,11,0.25);
}

.proc-action-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.proc-action-card.proc-action-error   .proc-action-icon { color: var(--red); }
.proc-action-card.proc-action-warning .proc-action-icon { color: var(--warn); }

.proc-action-body { display: flex; flex-direction: column; gap: 6px; }

.proc-action-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}
.proc-action-card.proc-action-error   .proc-action-title { color: var(--red); }
.proc-action-card.proc-action-warning .proc-action-title { color: var(--warn); }

.proc-action-desc {
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.proc-action-btn {
  margin-top: 10px;
  align-self: flex-start;
  border: none;
  border-radius: var(--radius-sm);
  padding: 9px 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}
.proc-action-btn:hover { opacity: 0.85; transform: translateY(-1px); }

.proc-btn-error {
  background: rgba(248,113,113,0.12);
  color: var(--red);
  border: 1px solid rgba(248,113,113,0.3);
}
.proc-btn-warning {
  background: rgba(245,158,11,0.1);
  color: var(--warn);
  border: 1px solid rgba(245,158,11,0.3);
}

/* ══════════════ PAGE 3: CHAT ══════════════ */
#chatPage { align-items: stretch; }

.chat-messages {
  flex: 1;
  width: 100%;
  max-width: var(--max-chat);
  margin: 0 auto;
  padding: 32px 28px calc(var(--footer-h) + 50px);
  display: flex;
  flex-direction: column;
  gap: 24px;
  overflow-y: auto;
  height: calc(100vh - var(--header-h));
  scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }

/* Welcome */
.chat-welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
  gap: 12px;
  animation: fadeUp 0.5s ease both;
}

.welcome-icon { font-size: 2rem; margin-bottom: 8px; opacity: 0.5; }

.welcome-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--text);
  letter-spacing: 0.02em;
}

.welcome-sub { color: var(--muted); font-size: 0.75rem; letter-spacing: 0.06em; }

.welcome-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 20px;
}

.welcome-chip {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 0.75rem;
  color: var(--text-dim);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s, transform 0.15s;
}

.welcome-chip:hover {
  border-color: var(--accent);
  color: var(--accent2);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

/* Message groups */
.msg-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: msgIn 0.35s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.msg-group.user { align-items: flex-end; }
.msg-group.bot  { align-items: flex-start; }

@keyframes msgIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.msg-sender {
  font-size: 0.63rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 4px;
}

.msg-bubble.user {
  max-width: min(520px, 88%);
  padding: 11px 16px;
  border-radius: var(--radius);
  border-bottom-right-radius: 3px;
  font-size: 0.86rem;
  line-height: 1.7;
  background: var(--accent-soft);
  border: 1px solid rgba(217,79,0,0.2);
  color: var(--text);
  word-break: break-word;
}

.msg-bubble.bot {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 0.86rem;
  line-height: 1.78;
  word-break: break-word;
  padding: 2px 0;
  width: 100%;
}

.msg-bubble.bot p { margin-bottom: 0.75em; }
.msg-bubble.bot p:last-child { margin-bottom: 0; }

.msg-bubble.bot h1,
.msg-bubble.bot h2,
.msg-bubble.bot h3,
.msg-bubble.bot h4 {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--text);
  margin: 1.1em 0 0.45em;
}
.msg-bubble.bot h1 { font-size: 1.2rem; }
.msg-bubble.bot h2 { font-size: 1.05rem; }
.msg-bubble.bot h3 { font-size: 0.95rem; }

.msg-bubble.bot ul, .msg-bubble.bot ol { padding-left: 1.4em; margin-bottom: 0.75em; }
.msg-bubble.bot li { margin-bottom: 0.25em; }
.msg-bubble.bot strong { color: var(--text); font-weight: 700; }
.msg-bubble.bot em { color: var(--text-dim); }
.msg-bubble.bot a { color: var(--accent2); text-decoration: underline; text-underline-offset: 3px; }

.msg-bubble.bot blockquote {
  border-left: 3px solid var(--border2);
  padding-left: 12px;
  color: var(--text-dim);
  margin: 0.75em 0;
  font-style: italic;
}

.msg-bubble.bot :not(pre) > code {
  font-family: var(--font-mono);
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.8em;
  color: var(--accent2);
}

/* Code blocks */
.code-block-wrap {
  margin: 10px 0;
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface2);
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 14px;
  background: var(--surface3);
  border-bottom: 1px solid var(--border);
}

.code-lang-label {
  font-size: 0.67rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.code-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: 3px 9px;
  font-size: 0.67rem;
  font-family: var(--font-mono);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.code-copy-btn:hover { color: var(--text-dim); border-color: var(--accent); }

.msg-bubble.bot pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  line-height: 1.6;
  background: transparent;
}

.msg-bubble.bot pre code {
  font-family: var(--font-mono);
  font-size: 0.79rem;
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
}

.msg-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 4px 10px;
  font-size: 0.63rem;
  font-family: var(--font-mono);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  margin-top: 2px;
}
.msg-copy-btn:hover { color: var(--text-dim); border-color: var(--border2); }

.msg-meta {
  font-size: 0.6rem;
  color: var(--muted);
  padding: 0 4px;
  letter-spacing: 0.04em;
}

/* ══════════════ THINKING UI ══════════════ */
.thinking-wrap {
  display: flex;
  flex-direction: column;
  gap: 0;
  align-self: flex-start;
  padding-left: 14px;
  border-left: 2px solid var(--border2);
  margin-left: 2px;
  width: calc(100% - 16px);
  animation: msgIn 0.35s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.thinking-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 0;
  background: transparent;
  border: none;
  font-size: 0.7rem;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s;
  user-select: none;
  letter-spacing: 0.04em;
  width: 100%;
  text-align: left;
}
.thinking-toggle:hover { color: var(--text-dim); }
.thinking-toggle.active { color: var(--accent2); }

.thinking-spinner { width: 12px; height: 12px; flex-shrink: 0; }
.thinking-spinner svg { animation: spinRing 0.9s linear infinite; display: block; }
.thinking-spinner.done svg { animation: none; }

.thinking-chevron {
  margin-left: auto;
  font-size: 0.65rem;
  transition: transform 0.25s ease;
  opacity: 0.4;
}
.thinking-toggle.open .thinking-chevron { transform: rotate(180deg); }

.thinking-steps-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
  opacity: 0;
}
.thinking-steps-panel.open { max-height: 400px; opacity: 1; }

.thinking-steps-inner {
  padding: 8px 0 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  overflow-y: auto;
  max-height: 380px;
}

.thinking-step {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.74rem;
  color: var(--text-dim);
  line-height: 1.55;
  opacity: 0.7;
}

.thinking-step-dot {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
  margin-top: 6px;
}

.thinking-step.current { color: var(--text-dim); opacity: 1; }
.thinking-step.current .thinking-step-dot { background: var(--accent); box-shadow: 0 0 4px var(--accent); }
.thinking-step.done-step { opacity: 0.45; }
.thinking-step.done-step .thinking-step-dot { background: var(--green); }

/* ══════════════ FOOTER ══════════════ */
#footer {
  position: fixed;
  bottom: 36px; left: 0; right: 0;
  padding: 12px 20px 14px;
  background: rgba(6, 6, 6, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  z-index: 400;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

#footer.hidden { display: none; }

.chat-input-card {
  width: min(var(--max-chat), calc(100vw - 40px));
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  display: flex;
  align-items: flex-end;
  gap: 0;
  transition: border-color 0.25s, box-shadow 0.25s;
  padding: 4px 4px 4px 0;
  position: relative;
}

.chat-input-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 10px 0 0 10px;
  background: linear-gradient(180deg, #ff6a00, #d94f00);
}

.chat-input-card:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

#chatInput {
  flex: 1;
  background: none;
  border: none;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  outline: none;
  resize: none;
  line-height: 1.55;
  max-height: 160px;
  overflow-y: auto;
}

#chatInput::placeholder { color: var(--muted); }

.send-btn {
  background: linear-gradient(135deg, #d94f00, #ff6a00);
  color: #fff;
  border: none;
  border-radius: 7px;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  margin: 4px;
}

.send-btn:hover {
  opacity: 0.9;
  transform: scale(1.05);
  box-shadow: 0 4px 16px rgba(217,79,0,0.4);
}
.send-btn:active { transform: scale(0.96); }

.footer-hint {
  font-size: 0.6rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

kbd {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--text-dim);
}

/* ══════════════ UTILITIES ══════════════ */
.hidden { display: none !important; }

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #333; }
/* ── Settings (bring your own key) ── */
.header-right { display: flex; align-items: center; gap: 10px; }

.settings-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 100px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.settings-btn:hover { color: var(--text); border-color: var(--accent); }
.settings-btn.needs-key { color: var(--accent2); border-color: var(--accent); }

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 1000;
}

.modal-card {
  width: 100%;
  max-width: 440px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.modal-head { display: flex; justify-content: space-between; align-items: center; }
.modal-head h2 { font-family: var(--font-head); font-size: 1.05rem; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-dim); cursor: pointer; font-size: 0.9rem; }
.modal-close:hover { color: var(--text); }
.modal-desc { font-size: 0.7rem; line-height: 1.6; color: var(--text-dim); margin-bottom: 6px; }
.modal-desc strong { color: var(--text); }

.field-label { font-size: 0.68rem; letter-spacing: 0.06em; color: var(--text-dim); margin-top: 6px; }
.field-hint { color: var(--muted); text-transform: none; letter-spacing: 0; }
.field-input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  outline: none;
}
.field-input:focus { border-color: var(--accent); }
.field-help { font-size: 0.66rem; color: var(--accent2); text-decoration: none; align-self: flex-start; }
.field-help:hover { text-decoration: underline; }
.field-check { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; font-size: 0.68rem; color: var(--text-dim); margin-top: 8px; }
.field-check .field-hint { flex-basis: 100%; padding-left: 21px; }
.field-error { font-size: 0.7rem; color: var(--red); }

.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }
.modal-btn-secondary {
  background: none;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0 14px;
  cursor: pointer;
}
.modal-btn-secondary:hover { color: var(--text); border-color: var(--accent); }

@media (max-width: 520px) {
  #settingsLabel { display: none; }
}