/* ============================================================
   Ops Assistant — Premium SaaS Design System
   AI-Powered Support & Operations Dashboard
   ============================================================ */

/* ── Fonts ────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-base:        #080b13;
  --bg-elevated:    #0d1117;
  --bg-card:        #111620;
  --bg-card-hover:  #161c2b;
  --bg-input:       #0a0d16;
  --bg-sidebar:     #0c1019;

  /* Borders */
  --border:         rgba(255,255,255,0.06);
  --border-md:      rgba(255,255,255,0.1);
  --border-focus:   rgba(0,201,167,0.55);

  /* Text */
  --text-primary:   #edf0f8;
  --text-secondary: #8892a8;
  --text-muted:     #4d566b;
  --text-code:      #a8d5c8;

  /* Accent — teal/emerald operational feel */
  --accent:         #00C9A7;
  --accent-dark:    #00A88A;
  --accent-glow:    rgba(0,201,167,0.16);
  --accent-border:  rgba(0,201,167,0.25);

  /* Blue — informational */
  --blue:           #3B82F6;
  --blue-bg:        rgba(59,130,246,0.12);
  --blue-border:    rgba(59,130,246,0.25);

  /* Status colours */
  --green:          #10D9A0;
  --green-bg:       rgba(16,217,160,0.1);
  --yellow:         #F59E0B;
  --yellow-bg:      rgba(245,158,11,0.12);
  --red:            #F43F5E;
  --red-bg:         rgba(244,63,94,0.12);
  --purple:         #8B5CF6;
  --purple-bg:      rgba(139,92,246,0.12);

  /* Radius */
  --r-sm:   8px;
  --r-md:   12px;
  --r-lg:   16px;
  --r-xl:   20px;
  --r-2xl:  24px;

  /* Shadows */
  --shadow-card:  0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:    0 8px 40px rgba(0,0,0,0.55);
  --shadow-glow:  0 0 24px rgba(0,201,167,0.14);

  /* Transitions */
  --t: all 0.18s ease;
  --t-fast: all 0.12s ease;

  /* Layout */
  --nav-h:   60px;
  --sidebar-w: 240px;
  --sidebar-r-w: 260px;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html, body { height: 100%; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
kbd {
  background: var(--bg-card);
  border: 1px solid var(--border-md);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
}
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.14); }

/* ── Nav ────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(8,11,19,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 100;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo-icon {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  box-shadow: 0 0 14px rgba(0,201,167,0.3);
}
.nav-logo-name {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.nav-logo-sub {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
.system-status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 10px;
}
.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: statusPulse 2.5s ease-in-out infinite;
}
@keyframes statusPulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16,217,160,0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 4px rgba(16,217,160,0); }
}

/* Nav tabs */
.nav-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 4px;
}
.nav-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: var(--r-sm);
  transition: var(--t);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-tab:hover { color: var(--text-secondary); background: rgba(255,255,255,0.03); }
.nav-tab.active { background: var(--bg-elevated); color: var(--text-primary); box-shadow: 0 1px 4px rgba(0,0,0,0.3); }

/* Nav right */
.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}
.nav-sep { opacity: 0.4; }
.btn-icon {
  width: 32px; height: 32px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-muted);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--t);
}
.btn-icon:hover { background: var(--bg-card); color: var(--text-primary); border-color: var(--border-md); }

/* ── Views ──────────────────────────────────────────────────── */
.view { display: none; padding-top: var(--nav-h); }
.view.active { display: block; }

/* ── Chat Layout ───────────────────────────────────────────── */
.chat-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr var(--sidebar-r-w);
  height: 560px;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ── Sidebars ───────────────────────────────────────────────── */
.sidebar {
  border-right: 1px solid var(--border);
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  height: 100%;
}
.sidebar-right {
  border-right: none;
  border-left: 1px solid var(--border);
}
.sidebar-section {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-section--log {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-bottom: none;
  min-height: 0;
}
.sidebar-title {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.sidebar-title-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  line-height: 1.4;
}
.sidebar-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
}
.live-badge {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green);
  background: var(--green-bg);
  border: 1px solid rgba(16,217,160,0.2);
  border-radius: 20px;
  padding: 2px 7px;
  animation: livePulse 2s ease-in-out infinite;
}
@keyframes livePulse { 0%,100%{opacity:1} 50%{opacity:0.6} }
.log-count {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1px 7px;
}

/* Status grid */
.status-grid { display: flex; flex-direction: column; gap: 8px; }
.status-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.status-item-icon {
  width: 30px; height: 30px; border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; flex-shrink: 0;
}
.status-item-label {
  font-size: 0.725rem;
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1.2;
}
.status-item-val {
  font-size: 0.675rem;
  color: var(--text-muted);
  line-height: 1.2;
}
.status-item-val.online { color: var(--green); }

/* Stat pills */
.stat-pills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.stat-pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 8px 10px;
  text-align: center;
}
.stat-pill-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 3px;
}
.stat-pill-num.accent { color: var(--accent); }
.stat-pill-num.green { color: var(--green); }
.stat-pill-num.warn { color: var(--yellow); }
.stat-pill-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* KB pills */
.kb-pills { display: flex; flex-wrap: wrap; gap: 5px; }
.kb-pill {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px 9px;
}

/* Actions feed */
.actions-feed {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 240px;
  overflow-y: auto;
}
.feed-empty {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  padding: 16px 0;
}
.action-feed-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 8px 10px;
  animation: slideInRight 0.25s ease;
}
@keyframes slideInRight {
  from { transform: translateX(12px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
.action-feed-type {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 2px;
}
.action-type-badge {
  font-size: 0.6rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge-create { background: rgba(0,201,167,0.15); color: var(--accent); }
.badge-log { background: var(--blue-bg); color: var(--blue); }
.badge-update { background: rgba(139,92,246,0.15); color: var(--purple); }
.badge-escalate { background: var(--red-bg); color: var(--red); }

.action-feed-id {
  font-size: 0.65rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  margin-left: 2px;
}
.action-feed-desc {
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.action-feed-time {
  font-size: 0.62rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Log feed */
.log-feed {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.log-entry {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 0.68rem;
  line-height: 1.4;
}
.log-time {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  flex-shrink: 0;
  font-size: 0.62rem;
}
.log-type {
  flex-shrink: 0;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  letter-spacing: 0.05em;
}
.log-type.info { background: var(--blue-bg); color: var(--blue); }
.log-type.action { background: var(--accent-glow); color: var(--accent); }
.log-type.warn { background: var(--yellow-bg); color: var(--yellow); }
.log-type.error { background: var(--red-bg); color: var(--red); }
.log-type.kb { background: rgba(139,92,246,0.12); color: var(--purple); }
.log-msg {
  color: var(--text-secondary);
  font-size: 0.68rem;
  line-height: 1.4;
}

/* ── Chat Main ──────────────────────────────────────────────── */
.chat-main {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* Sample bar */
.sample-bar {
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  background: var(--bg-sidebar);
  flex-shrink: 0;
}
.sample-bar-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 7px;
}
.sample-bar-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.sample-q {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 11px;
  transition: var(--t);
  white-space: nowrap;
}
.sample-q:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-border);
  color: var(--text-primary);
  transform: translateY(-1px);
}

/* Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* System welcome message */
.message-system {
  max-width: 680px;
  margin: 0 auto;
}
.message-system-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  box-shadow: var(--shadow-card);
}
.message-system-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 2px;
}
.message-system-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 5px;
  letter-spacing: -0.01em;
}
.message-system-body {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 10px;
}
.message-system-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.meta-chip {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 9px;
}

/* Conversation messages */
.msg-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  animation: msgSlideIn 0.22s ease;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}
@keyframes msgSlideIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* User bubble */
.msg-user {
  align-self: flex-end;
  max-width: 80%;
}
.msg-user-bubble {
  background: var(--accent);
  color: #001a15;
  border-radius: var(--r-lg) var(--r-lg) var(--r-sm) var(--r-lg);
  padding: 11px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.55;
  max-width: 100%;
}
.msg-user-meta {
  font-size: 0.67rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: 4px;
  padding-right: 4px;
}

/* Assistant response card */
.msg-assistant {
  align-self: flex-start;
  width: 100%;
}
.response-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

/* Response header */
.response-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}
.response-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.response-avatar {
  width: 24px; height: 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
}
.response-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
}
.response-time {
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* Response body */
.response-body {
  padding: 16px;
}

/* Answer text */
.response-answer {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.75;
  margin-bottom: 14px;
}
.response-answer strong { color: var(--accent); font-weight: 600; }
.response-answer code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--text-code);
}

/* Metadata row */
.response-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.response-meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 9px;
}
.response-meta-item .meta-icon { font-size: 0.8rem; }
.response-meta-item .meta-val { color: var(--text-secondary); font-weight: 600; }

/* Confidence bar */
.confidence-bar-wrap {
  display: flex;
  align-items: center;
  gap: 7px;
}
.confidence-bar {
  width: 60px;
  height: 5px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.confidence-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
}
.conf-high { background: var(--green); }
.conf-mid  { background: var(--yellow); }
.conf-low  { background: var(--red); }

/* Action taken block */
.action-taken-block {
  margin-top: 12px;
  background: var(--bg-input);
  border: 1px solid var(--accent-border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.action-taken-header {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  background: rgba(0,201,167,0.07);
  border-bottom: 1px solid var(--accent-border);
}
.action-taken-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
}
.action-taken-body {
  padding: 10px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-code);
  line-height: 1.7;
}
.action-line {
  display: flex;
  gap: 8px;
}
.action-line-key { color: var(--text-muted); flex-shrink: 0; }
.action-line-val { color: var(--text-code); }
.action-line-val.id { color: var(--accent); font-weight: 600; }
.action-line-val.success { color: var(--green); }
.action-line-val.warn { color: var(--yellow); }
.action-line-val.error { color: var(--red); }

/* No-match card */
.no-match-card {
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: var(--r-md);
  padding: 12px 14px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.no-match-icon { font-size: 1.1rem; flex-shrink: 0; }
.no-match-title { font-size: 0.8rem; font-weight: 700; color: var(--yellow); margin-bottom: 3px; }
.no-match-body { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.55; }

/* ── Input area ──────────────────────────────────────────────── */
.chat-input-area {
  border-top: 1px solid var(--border);
  background: var(--bg-sidebar);
  padding: 12px 16px;
  flex-shrink: 0;
}
.chat-input-wrap {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 8px 8px 8px 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.chat-input-wrap:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(0,201,167,0.08);
}
.chat-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  line-height: 1.55;
  resize: none;
  max-height: 120px;
  overflow-y: auto;
}
.chat-input::placeholder { color: var(--text-muted); }
.chat-send-btn {
  width: 36px; height: 36px;
  background: var(--accent);
  color: #001a15;
  border: none;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: var(--t);
}
.chat-send-btn:hover { background: var(--accent-dark); transform: translateY(-1px); }
.chat-send-btn:active { transform: translateY(0); }
.chat-send-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.input-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 5px;
  font-size: 0.68rem;
  color: var(--text-muted);
}
.char-count { font-family: 'JetBrains Mono', monospace; }

/* ── Admin Panel ─────────────────────────────────────────────── */
.admin-layout {
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  padding: 24px;
}
.admin-stats-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.admin-stat {
  flex: 1;
  min-width: 120px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-card);
}
.admin-stat-num {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 5px;
}
.admin-stat-num.accent { color: var(--accent); }
.admin-stat-num.green  { color: var(--green); }
.admin-stat-num.warn   { color: var(--yellow); }
.admin-stat-num.red    { color: var(--red); }
.admin-stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}
.admin-panels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.admin-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  max-height: 520px;
  display: flex;
  flex-direction: column;
}
.admin-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.admin-panel-header h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}
.panel-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 20px;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.panel-badge.accent { color: var(--accent); background: var(--accent-glow); border-color: var(--accent-border); }
.panel-badge.warn { color: var(--yellow); background: var(--yellow-bg); border-color: rgba(245,158,11,0.25); }
.admin-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.adm-empty { font-size: 0.78rem; color: var(--text-muted); text-align: center; padding: 24px 0; }

/* Admin panel items */
.adm-conv-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 10px 12px;
}
.adm-conv-q { font-size: 0.78rem; color: var(--text-primary); font-weight: 600; margin-bottom: 3px; line-height: 1.4; }
.adm-conv-a { font-size: 0.73rem; color: var(--text-secondary); line-height: 1.5; }
.adm-conv-meta {
  display: flex;
  gap: 6px;
  margin-top: 5px;
  flex-wrap: wrap;
}
.adm-chip {
  font-size: 0.62rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.adm-chip.green { color: var(--green); background: var(--green-bg); border-color: rgba(16,217,160,0.2); }
.adm-chip.accent { color: var(--accent); background: var(--accent-glow); border-color: var(--accent-border); }
.adm-chip.warn { color: var(--yellow); background: var(--yellow-bg); }

.adm-action-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 10px 12px;
}
.adm-action-type { margin-bottom: 3px; display: flex; gap: 6px; align-items: center; }
.adm-action-id { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--accent); font-weight: 600; }
.adm-action-desc { font-size: 0.73rem; color: var(--text-secondary); line-height: 1.5; }
.adm-action-time { font-size: 0.65rem; color: var(--text-muted); margin-top: 3px; font-family: 'JetBrains Mono', monospace; }

.adm-unk-item {
  background: rgba(245,158,11,0.05);
  border: 1px solid rgba(245,158,11,0.15);
  border-radius: var(--r-md);
  padding: 10px 12px;
}
.adm-unk-q { font-size: 0.78rem; color: var(--text-primary); font-weight: 600; margin-bottom: 3px; }
.adm-unk-time { font-size: 0.65rem; color: var(--text-muted); }

/* ── Thinking overlay ────────────────────────────────────────── */
.thinking-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8,11,19,0.85);
  backdrop-filter: blur(10px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
}
.thinking-overlay.active { display: flex; }
.thinking-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-2xl);
  padding: 36px 40px;
  text-align: center;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  min-width: 280px;
}
.thinking-spinner {
  width: 48px; height: 48px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  margin: 0 auto 20px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.thinking-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.thinking-steps {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}
.thinking-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.thinking-step.active { color: var(--accent); }
.thinking-step.done { color: var(--green); }
.thinking-step-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* ── Toast ───────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 10px 16px;
  font-size: 0.82rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.28s ease;
  max-width: 280px;
}
@keyframes toastIn { from { transform: translateX(120%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.toast.success { border-color: rgba(16,217,160,0.3); }
.toast.action  { border-color: var(--accent-border); }
.toast.warn    { border-color: rgba(245,158,11,0.3); }

/* ── Admin view scroll ────────────────────────────────────────── */
#view-admin {
  overflow-y: auto;
  height: calc(100vh - var(--nav-h));
}

/* ══════════════════════════════════════════════════════════════
   NEW SECTIONS — Hero / Scenarios / Workflow / Value / CTA
   ══════════════════════════════════════════════════════════════ */

/* ── Hero Section ─────────────────────────────────────────────── */
.hero-section {
  display: flex;
  align-items: center;
  gap: 48px;
  padding: 52px 48px 44px;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}
.hero-inner { flex: 1; min-width: 0; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--accent-glow);
  border: 1px solid var(--accent-border);
  border-radius: 20px;
  padding: 5px 13px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.status-dot--sm { width: 5px; height: 5px; }
.hero-title {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.12;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 10px;
  max-width: 540px;
}
.hero-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.hero-feature { display: flex; align-items: flex-start; gap: 12px; }
.hero-feature-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }
.hero-feature-title { font-size: 0.875rem; font-weight: 600; color: var(--text-primary); margin-bottom: 1px; }
.hero-feature-sub { font-size: 0.78rem; color: var(--text-muted); line-height: 1.5; }
.hero-cta-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.btn-primary-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--accent);
  color: #001a15;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 11px 22px;
  border-radius: var(--r-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: var(--t);
  letter-spacing: -0.01em;
}
.btn-primary-cta:hover {
  background: var(--accent-dark);
  color: #001a15;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,201,167,0.3);
}
.btn-primary-cta--large { padding: 14px 28px; font-size: 0.95rem; }
.hero-hint { font-size: 0.78rem; color: var(--text-muted); }

/* Hero visual mock card */
.hero-visual { flex-shrink: 0; width: 300px; display: flex; flex-direction: column; gap: 10px; }
.hero-mock-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}
.hero-mock-header {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px;
  background: rgba(0,201,167,0.07);
  border-bottom: 1px solid var(--accent-border);
}
.hero-mock-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: statusPulse 2s infinite; }
.hero-mock-label { font-size: 0.72rem; font-weight: 700; color: var(--accent); flex: 1; }
.hero-mock-status { font-size: 0.65rem; color: var(--green); font-weight: 600; }
.hero-mock-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-family: 'JetBrains Mono', monospace; font-size: 0.72rem;
}
.hero-mock-key { color: var(--text-muted); }
.hero-mock-val { color: var(--text-secondary); }
.hero-mock-val.id { color: var(--accent); font-weight: 600; }
.hero-mock-val.ok { color: var(--green); font-weight: 600; }
.hero-mock-val.warn { color: var(--yellow); font-weight: 600; }
.hero-mock-conf {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--text-muted);
}
.hero-mock-bar { flex: 1; height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; }
.hero-mock-fill { height: 100%; background: var(--green); border-radius: 2px; }
.hero-mock-log { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-md); padding: 8px 12px; display: flex; flex-direction: column; gap: 6px; }
.hero-mock-log-row { display: flex; align-items: center; gap: 7px; font-size: 0.68rem; color: var(--text-secondary); }

/* ── Scenarios Section ────────────────────────────────────────── */
.scenarios-section {
  background: var(--bg-sidebar);
  border-top: 1px solid var(--border);
  padding: 20px 48px;
  scroll-margin-top: calc(var(--nav-h) + 8px);
}
.scenarios-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.scenarios-title { font-size: 0.82rem; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.scenarios-hint { font-size: 0.75rem; color: var(--text-muted); }
.scenarios-groups { display: flex; gap: 24px; flex-wrap: wrap; }
.scenario-group { flex: 1; min-width: 200px; }
.scenario-group-label {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted); margin-bottom: 8px;
}
.scenario-group-dot { width: 5px; height: 5px; border-radius: 50%; flex-shrink: 0; }
.scenario-btns { display: flex; flex-wrap: wrap; gap: 5px; }

/* ── Workflow Section ─────────────────────────────────────────── */
.workflow-section { background: var(--bg-elevated); border-top: 1px solid var(--border); padding: 56px 48px; }
.workflow-inner { max-width: 1200px; margin: 0 auto; }
.workflow-header { text-align: center; margin-bottom: 48px; }
.workflow-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent); margin-bottom: 10px; }
.workflow-title { font-size: 1.75rem; font-weight: 800; letter-spacing: -0.03em; color: var(--text-primary); margin-bottom: 10px; }
.workflow-sub { font-size: 0.9rem; color: var(--text-muted); max-width: 500px; margin: 0 auto; line-height: 1.65; }
.workflow-steps { display: flex; align-items: flex-start; gap: 8px; overflow-x: auto; padding-bottom: 4px; }
.workflow-step {
  flex: 1; min-width: 120px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 20px 16px; text-align: center; transition: var(--t);
}
.workflow-step:hover { border-color: var(--accent-border); background: var(--bg-card-hover); transform: translateY(-2px); }
.workflow-step--final { border-color: var(--accent-border); background: rgba(0,201,167,0.04); }
.workflow-step-num { font-size: 0.62rem; font-weight: 700; font-family: 'JetBrains Mono', monospace; color: var(--text-muted); margin-bottom: 8px; letter-spacing: 0.05em; }
.workflow-step-icon { font-size: 1.4rem; margin-bottom: 8px; line-height: 1; }
.workflow-step-title { font-size: 0.8rem; font-weight: 700; color: var(--text-primary); margin-bottom: 5px; }
.workflow-step-desc { font-size: 0.72rem; color: var(--text-muted); line-height: 1.55; }
.workflow-arrow { color: var(--text-muted); font-size: 1.1rem; flex-shrink: 0; margin-top: 44px; opacity: 0.4; }

/* ── Value Section ────────────────────────────────────────────── */
.value-section { border-top: 1px solid var(--border); padding: 60px 48px; background: var(--bg-base); }
.value-inner { max-width: 1200px; margin: 0 auto; }
.value-header { text-align: center; margin-bottom: 48px; }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.value-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-xl);
  padding: 24px 20px; transition: var(--t); box-shadow: var(--shadow-card);
}
.value-card:hover { border-color: var(--border-md); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.value-card--accent { border-color: var(--accent-border); background: rgba(0,201,167,0.04); }
.value-card--accent:hover { border-color: var(--accent); }
.value-card-icon { font-size: 1.6rem; margin-bottom: 14px; line-height: 1; }
.value-card-title { font-size: 0.925rem; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; letter-spacing: -0.01em; }
.value-card-desc { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.65; margin-bottom: 16px; }
.value-card-stat {
  font-size: 0.72rem; font-weight: 700; color: var(--accent);
  background: var(--accent-glow); border: 1px solid var(--accent-border);
  border-radius: 20px; padding: 3px 10px; display: inline-block;
}

/* ── Bottom CTA ───────────────────────────────────────────────── */
.bottom-cta-section { border-top: 1px solid var(--border); padding: 72px 48px; text-align: center; position: relative; overflow: hidden; background: var(--bg-elevated); }
.bottom-cta-inner { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.bottom-cta-badge { display: inline-block; font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px; padding: 4px 12px; margin-bottom: 20px; }
.bottom-cta-title { font-size: 2rem; font-weight: 800; letter-spacing: -0.04em; color: var(--text-primary); margin-bottom: 14px; line-height: 1.2; }
.bottom-cta-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 32px; }
.bottom-cta-actions { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.bottom-cta-hint { font-size: 0.78rem; color: var(--text-muted); }
.bottom-cta-glow { position: absolute; bottom: -80px; left: 50%; transform: translateX(-50%); width: 500px; height: 300px; background: radial-gradient(ellipse at center, rgba(0,201,167,0.1) 0%, transparent 70%); pointer-events: none; }

/* ── Admin intro ──────────────────────────────────────────────── */
.admin-intro { display: flex; align-items: flex-start; gap: 14px; background: var(--bg-card); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--r-lg); padding: 16px 20px; margin-bottom: 20px; box-shadow: var(--shadow-card); }
.admin-intro-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.admin-intro-title { font-size: 0.9rem; font-weight: 700; color: var(--accent); margin-bottom: 4px; }
.admin-intro-desc { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; }
.admin-panel-sub { font-size: 0.71rem; color: var(--text-muted); margin-top: 2px; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1100px) {
  :root { --sidebar-w: 190px; --sidebar-r-w: 210px; }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-visual { width: 250px; }
}
@media (max-width: 900px) {
  /* Nav */
  .nav { padding: 0 16px; height: 52px; }
  .nav-portfolio-back { display: none; }
  .nav-logo-sep-v { display: none; }
  .nav-other-demo { display: none; }
  .nav-meta { display: none; }
  .system-status-badge { display: none; }
  .nav-left { gap: 8px; }
  .nav-right { gap: 8px; }
  .nav-tabs { gap: 4px; }
  .nav-tab { font-size: 0.78rem; padding: 6px 12px; }
  .nav-logo-name { font-size: 0.82rem; }
  .nav-logo-sub { display: none; }
  .nav-logo { gap: 7px; }

  /* Hero */
  .hero-section { flex-direction: column; padding: 24px 20px 20px; gap: 20px; }
  .hero-visual { display: none; }
  .hero-title { font-size: 1.75rem; }
  .hero-subtitle { font-size: 0.9rem; }
  .hero-desc { font-size: 0.82rem; }
  .hero-inner { max-width: 100%; }
  .hero-features { gap: 12px; }
  .hero-feature { gap: 10px; }

  /* Case summary */
  .ops-case-summary { padding: 0 20px 20px; }

  /* Live demo section */
  .live-demo-section { border-left: none; border-right: none; }
  .live-demo-header { padding: 16px 20px 12px; flex-direction: column; align-items: flex-start; gap: 10px; }

  /* Chat */
  .chat-layout { grid-template-columns: 1fr; }
  .sidebar-left { display: none; }
  .sidebar-right { display: none; }
  .admin-panels { grid-template-columns: 1fr; }
  :root { --sidebar-w: 0px; --sidebar-r-w: 0px; }

  /* Scenarios */
  .scenarios-section { padding: 16px 20px; }
  .scenarios-groups { flex-direction: column; gap: 12px; }

  /* Sections */
  .workflow-section, .value-section, .bottom-cta-section { padding: 36px 20px; }
  .workflow-steps { flex-direction: column; gap: 12px; }
  .workflow-arrow { display: none; }
  .value-grid { grid-template-columns: 1fr; }

  /* Explore */
  .ops-explore-section { padding: 0 20px 36px; }
  .ops-explore-inner { flex-direction: column; gap: 14px; }
  .ops-explore-cta { width: 100%; text-align: center; justify-content: center; }

  /* Proves */
  .ops-proves-section .usecases-inner { padding: 0 20px; }

  /* Use cases section */
  .usecases-section { padding: 36px 0; }
  .usecases-inner { padding: 0 20px; }
  .usecases-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-tab { font-size: 0.72rem; padding: 5px 10px; }
  .nav-logo-icon { width: 24px; height: 24px; font-size: 12px; }
  .sample-q { font-size: 0.68rem; padding: 4px 8px; }
  .hero-title { font-size: 1.55rem; }
  .workflow-title, .bottom-cta-title { font-size: 1.3rem; }
  .hero-cta-row { flex-direction: column; gap: 10px; align-items: stretch; }
  .btn-primary-cta { justify-content: center; }
  .hero-trust-strip { flex-wrap: wrap; gap: 10px; }
  .trust-sep { display: none; }
  .hero-features { flex-direction: column; }
}


/* --------------------------------------------------------------
   PORTFOLIO RESTRUCTURE ADDITIONS
   -------------------------------------------------------------- */

/* -- Portfolio nav links ---------------------------------------- */
.nav-portfolio-back {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s;
  flex-shrink: 0;
}
.nav-portfolio-back:hover { color: var(--text-primary); }
.nav-logo-sep-v {
  width: 1px; height: 20px;
  background: var(--border);
  flex-shrink: 0;
  margin: 0 4px;
}
.nav-other-demo {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.15s;
}
.nav-other-demo:hover { opacity: 0.75; }

/* -- Live demo section wrapper -------------------------------- */
.live-demo-section {
  background: var(--bg-sidebar);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.live-demo-header {
  padding: 28px 48px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.live-demo-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--accent-glow);
  border: 1px solid var(--accent-border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  flex-shrink: 0;
}
.live-demo-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  flex-shrink: 0;
}
.live-demo-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* -- Ops explore section --------------------------------------- */
.ops-explore-section {
  padding: 0 48px 48px;
  background: var(--bg-base);
}
.ops-explore-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 24px 28px;
}
.ops-explore-eyebrow {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.ops-explore-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.ops-explore-icon { font-size: 2rem; flex-shrink: 0; }
.ops-explore-body { flex: 1; min-width: 200px; }
.ops-explore-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 5px;
}
.ops-explore-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}
.ops-explore-tags {
  display: flex; flex-wrap: wrap; gap: 5px;
}
.ops-explore-tag {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 9px;
}
.ops-explore-cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #001a15;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--r-md);
  text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
  font-family: inherit;
}
.ops-explore-cta:hover {
  background: var(--accent-dark);
  color: #001a15;
  transform: translateY(-1px);
}

/* responsive overrides for new sections */
@media (max-width: 900px) {
  .live-demo-header { padding: 20px 24px 16px; }
  .ops-explore-section { padding: 0 24px 40px; }
  .nav-portfolio-back { display: none; }
  .nav-logo-sep-v { display: none; }
}
/* USE CASES */
.usecases-section{background:var(--bg-elevated);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:64px 0}.usecases-inner{max-width:1200px;margin:0 auto;padding:0 48px}.usecases-header{margin-bottom:44px}.usecases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}.usecase-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-xl);padding:28px 24px;display:flex;flex-direction:column;gap:12px;transition:var(--t);position:relative;min-height:260px}.usecase-card:hover{border-color:var(--border-md);transform:translateY(-3px);box-shadow:0 8px 32px rgba(0,0,0,.45)}.usecase-card--featured{border-color:var(--accent-border);background:linear-gradient(180deg,rgba(0,201,167,.05) 0%,var(--bg-card) 100%)}.usecase-card--featured:hover{border-color:var(--accent)}.usecase-card--featured::before{content:'Most common';position:absolute;top:0;right:20px;transform:translateY(-50%);font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.09em;background:var(--accent);color:#001a15;padding:3px 10px;border-radius:20px}.usecase-card-icon{font-size:1.6rem;line-height:1}.usecase-card-tag{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--accent)}.usecase-card-title{font-size:1rem;font-weight:700;color:var(--text-primary);letter-spacing:-.015em;line-height:1.3}.usecase-card-desc{font-size:.82rem;color:var(--text-secondary);line-height:1.68;flex:1}.usecase-card-examples{display:flex;flex-wrap:wrap;gap:6px;padding-top:14px;margin-top:auto;border-top:1px solid var(--border)}.usecase-example{display:inline-block;font-size:.68rem;font-weight:600;color:var(--text-muted);background:var(--bg-elevated);border:1px solid var(--border);border-radius:20px;padding:3px 10px;white-space:nowrap}
/* TRUST STRIP */
.hero-trust-strip{display:flex;align-items:center;gap:20px;margin-top:24px;padding-top:20px;border-top:1px solid var(--border)}.trust-item{display:flex;align-items:center;gap:6px;font-size:.75rem;font-weight:500;color:var(--text-muted);white-space:nowrap}.trust-dot{width:5px;height:5px;border-radius:50%;background:var(--green);flex-shrink:0;animation:statusPulse 2.5s ease-in-out infinite}.trust-sep{width:1px;height:14px;background:var(--border-md);flex-shrink:0}
/* ADMIN PROOF */
.admin-proof-note{display:inline-flex;align-items:center;gap:7px;margin-top:10px;font-size:.75rem;font-weight:600;color:var(--text-secondary);background:rgba(0,201,167,.06);border:1px solid var(--accent-border);border-radius:20px;padding:4px 14px}.admin-proof-icon{font-size:.85rem}
/* CTA NOTE */
.bottom-cta-integration-note{font-size:.83rem;color:var(--text-secondary);line-height:1.65;max-width:480px;margin:0 auto 18px;text-align:center}
/* RESPONSIVE */
@media(max-width:1100px){.usecases-grid{grid-template-columns:repeat(2,1fr)}.usecases-inner{padding:0 32px}}@media(max-width:900px){.usecases-section{padding:44px 0}.usecases-inner{padding:0 24px}.usecases-grid{grid-template-columns:1fr}.usecases-header{margin-bottom:28px}.hero-trust-strip{flex-wrap:wrap;gap:12px}.trust-sep{display:none}}@media(max-width:640px){.usecase-card{padding:22px 18px}}
.usecases-subtitle{font-size:.9rem;color:var(--text-muted);line-height:1.65;margin-top:8px}

/* ══ CASE STUDY ADDITIONS ══════════════════════════════════════ */

/* Case Summary strip — ops */
.ops-case-summary {
  padding: 0 48px 28px;
  background: var(--bg-base);
}
.case-summary-row {
  display: flex;
  align-items: stretch;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.case-summary-item {
  flex: 1;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.case-summary-label {
  font-size: 0.63rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}
.case-summary-value {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
}
.case-summary-divider {
  width: 1px;
  background: var(--border);
  flex-shrink: 0;
}

/* Proves section — ops */
.ops-proves-section {
  background: var(--bg-base);
  padding: 0 0 32px;
}
.proves-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 6px;
}
.proves-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.proves-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.proves-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--t);
}
.proves-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-2px);
}
.proves-card-icon { font-size: 1.4rem; line-height: 1; }
.proves-card-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.proves-card-desc {
  font-size: 0.77rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Responsive — case study additions */
@media (max-width: 900px) {
  .ops-case-summary { padding: 0 20px 20px; }
  .case-summary-row { flex-direction: column; }
  .case-summary-divider { width: 100%; height: 1px; flex-shrink: 0; }
  .case-summary-item { padding: 12px 16px; }
  .proves-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .proves-grid { grid-template-columns: 1fr; }
  .proves-title { font-size: 1.2rem; }
  .usecase-card { padding: 18px 14px; }
}