/* AIRIN AI — Microsoft Copilot-inspired UI */

:root {
  --bg: #0b0f1a;
  --bg-elevated: #111627;
  --sidebar: #0a0d16;
  --surface: #151a2a;
  --surface2: #1b2236;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.12);
  --text: #f3f6fc;
  --text-secondary: #c5cde0;
  --muted: #8b95ad;
  --accent: #7c9cff;
  --accent-soft: rgba(124, 156, 255, 0.15);
  --danger: #f87171;
  --radius-lg: 24px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --sidebar-w: 272px;
  --composer-max: 760px;
  --z-overlay: 40;
  --z-sidebar: 50;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  max-height: 100dvh;
  overflow: hidden; /* cegah page scroll — scroll hanya di dalam panel */
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: #0b0f1a;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

#app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: 100%;
  height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  overflow: hidden;
  align-items: stretch;
}

/* ── Overlay ── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  z-index: var(--z-overlay);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.sidebar-overlay.visible {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

/* ── Sidebar ── */
#sidebar {
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem 0.85rem 0.85rem;
  z-index: var(--z-sidebar);
  height: 100%;
  max-height: 100%;
  min-height: 0;
  overflow: hidden; /* sidebar diam; scroll hanya di .conv-list */
  position: sticky;
  top: 0;
  align-self: stretch;
}

.sidebar-top {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 0;
  flex: 1;
  overflow: hidden;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.4rem 0.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, #5b7cfa, #9b6dff);
  font-size: 0.95rem;
  color: #fff;
}

.brand-name {
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.btn-close-sidebar { display: none; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s;
}
.nav-item i { width: 1.1rem; text-align: center; opacity: 0.9; }
.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}
.nav-item.nav-primary {
  color: var(--text);
}
.nav-item.nav-primary:hover {
  background: rgba(255, 255, 255, 0.07);
}

.side-divider {
  height: 1px;
  background: var(--border);
  margin: 0.35rem 0.4rem;
}

.conv-section {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-height: 0;
  flex: 1;
  overflow: hidden;
  padding: 0 0.15rem;
}

.conv-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.25rem 0.6rem;
}

.conv-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  flex: 1;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.12) transparent;
}

.conv-empty {
  display: none;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.45;
  padding: 0.5rem 0.65rem 1rem;
}
.conv-empty.visible { display: block; }

.conv-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.15rem 0.4rem;
  align-items: center;
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.conv-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}
.conv-item.active {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--border-strong);
  color: var(--text);
}
.conv-item .conv-title {
  font-size: 0.86rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.conv-item .conv-preview {
  grid-column: 1 / -1;
  font-size: 0.72rem;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.conv-item .conv-actions {
  display: flex;
  gap: 0.1rem;
  opacity: 0;
  transition: opacity 0.15s;
}
.conv-item:hover .conv-actions,
.conv-item.active .conv-actions { opacity: 1; }
.conv-item .conv-actions button {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 0.2rem 0.35rem;
  border-radius: 6px;
  font-size: 0.72rem;
}
.conv-item .conv-actions button:hover {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}
.conv-item .conv-actions button.danger:hover { color: var(--danger); }

.sidebar-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.gh-status {
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0 0.75rem;
}

.user-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.65rem;
  border-radius: var(--radius-sm);
  margin-top: 0.15rem;
}
.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #5b7cfa, #c084fc);
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.user-meta { flex: 1; min-width: 0; }
.user-name {
  font-size: 0.86rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-plan {
  font-size: 0.72rem;
  color: var(--muted);
}

.session-id {
  font-size: 0.68rem;
  color: var(--muted);
  font-family: ui-monospace, monospace;
  padding: 0 0.65rem 0.25rem;
  word-break: break-all;
  opacity: 0.7;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
}
.dot.ok { background: #4ade80; box-shadow: 0 0 8px rgba(74, 222, 128, 0.45); }
.dot.err { background: var(--danger); }

/* ── Main ── */
#main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
  max-height: 100%;
  overflow: hidden; /* chat scroll di dalam .messages, bukan page */
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(90, 120, 255, 0.09), transparent 55%),
    var(--bg);
}

#topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  min-height: 52px;
  flex-shrink: 0;
}

.top-title {
  flex: 1;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.temp-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.03);
}
.temp-badge i { font-size: 0.75rem; opacity: 0.85; }
.temp-badge.saved {
  border-color: rgba(124, 156, 255, 0.35);
  color: #c7d4ff;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.15s, color 0.15s;
}
.icon-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}
.icon-btn.danger:hover { color: var(--danger); }

/* ── Stage (messages + composer) ── */
.stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  position: relative;
}

.stage.is-empty {
  justify-content: center;
}

.stage.is-empty .messages { display: none; }
.stage.is-empty .empty-state { display: flex; }
.stage:not(.is-empty) .empty-state { display: none; }
.stage:not(.is-empty) .suggestion-chips { display: none; }

.empty-state {
  display: none;
  flex-direction: column;
  align-items: center;
  padding: 1rem 1.5rem 0.5rem;
  animation: fadeIn 0.4s ease;
}

.greeting {
  font-size: clamp(1.45rem, 3.5vw, 1.85rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-align: center;
  color: var(--text);
  margin-bottom: 1.75rem;
  line-height: 1.3;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.msg {
  max-width: 100%;
  animation: fadeIn 0.25s ease;
}
.msg .role {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.3rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.msg.user {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}
.msg.user .role { color: #a5b4fc; }
.msg.assistant .role { color: #c4b5fd; }
.msg.system {
  align-self: center;
  max-width: 90%;
  text-align: center;
  color: var(--muted);
  font-size: 0.86rem;
  padding: 0.5rem 1rem;
}
.msg.user,
.msg.assistant {
  padding: 0.15rem 0;
}
.msg .code-block {
  margin: 0.6rem 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  overflow: hidden;
}
.msg .code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.4rem 0.7rem;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid var(--border);
}
.msg .code-lang {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.msg .code-copy {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.msg .code-copy:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-color: var(--border-strong);
}
.msg .code-copy.copied {
  color: #4ade80;
}
.msg .code-copy i {
  font-size: 0.8rem;
}
.msg pre {
  margin: 0;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.5;
  background: transparent;
  border: none;
  border-radius: 0;
}
.msg code {
  font-family: ui-monospace, "JetBrains Mono", monospace;
  font-size: 0.86em;
  background: rgba(255,255,255,0.06);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
.msg pre code { background: none; padding: 0; }
.msg .chat-img {
  max-width: min(360px, 100%);
  border-radius: 12px;
  margin-top: 0.5rem;
  border: 1px solid var(--border);
}
.tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #c7d4ff;
  margin-right: 0.3rem;
}

.typing {
  display: inline-flex;
  gap: 5px;
  padding: 0.35rem 0;
}
.typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  animation: bounce 1.2s infinite ease-in-out;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }

/* ── Composer ── */
.composer-wrap {
  width: 100%;
  max-width: var(--composer-max);
  margin: 0 auto;
  padding: 0.5rem 1.25rem 1.15rem;
  flex-shrink: 0;
}

.stage.is-empty .composer-wrap {
  padding-top: 0;
}

.preview-area {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  padding: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.preview-area.hidden { display: none; }
.preview-area img {
  max-height: 96px;
  max-width: 160px;
  border-radius: 8px;
  object-fit: cover;
}

.composer-box {
  position: relative;
  isolation: isolate;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1rem 0.7rem;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.02),
    0 12px 40px rgba(0, 0, 0, 0.35);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.composer-box:focus-within {
  border-color: rgba(124, 156, 255, 0.35);
  box-shadow:
    0 0 0 1px rgba(124, 156, 255, 0.12),
    0 12px 40px rgba(0, 0, 0, 0.4);
}

/* Konten (textarea + toolbar) selalu di depan layer border */
.composer-box > * {
  position: relative;
  z-index: 2;
}

/* Hanya ring border yang animate */
.composer-box.is-typing {
  border-color: transparent;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

/* Layer 0: gradient + soft glow (belakang) */
.composer-box.is-typing::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--radius-lg) + 2px);
  background-image: linear-gradient(
    45deg,
    #ff0000,
    #ffff00,
    #00ff00,
    #0000ff,
    #00ffff,
    #ff00ff,
    #ff0000
  );
  background-size: 400%;
  z-index: 0;
  animation: airin-border-move 8s linear infinite;
  pointer-events: none;
  filter: blur(10px);
  opacity: 0.75;
}

/* Layer 1: solid fill menutup tengah → sisa ring ~2px */
.composer-box.is-typing::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  z-index: 1;
  pointer-events: none;
}

@keyframes airin-border-move {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

#input {
  width: 100%;
  resize: none;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.98rem;
  line-height: 1.45;
  max-height: 160px;
  min-height: 28px;
}
#input::placeholder { color: var(--muted); }

.composer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.55rem;
  gap: 0.5rem;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.pill-btn:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}
.pill-btn.muted-pill {
  cursor: default;
  opacity: 0.85;
}
.pill-btn i { font-size: 0.78rem; }

.send-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: var(--text);
  color: #0b0f1a;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
  flex-shrink: 0;
}
.send-btn:hover:not(:disabled) { transform: scale(1.05); }
.send-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.suggestion-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.15rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.chip {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.chip:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text);
}

.disclaimer {
  text-align: center;
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 0.85rem;
  line-height: 1.4;
  opacity: 0.85;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}
@keyframes bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
  40% { transform: translateY(-5px); opacity: 1; }
}

/* ── Mobile ── */
@media (max-width: 768px) {
  #app { grid-template-columns: 1fr; }

  #sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(var(--sidebar-w), 86vw);
    max-width: 320px;
    height: 100%;
    height: 100dvh;
    max-height: 100dvh;
    transform: translateX(-105%);
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.45);
  }
  #sidebar.open { transform: translateX(0); }

  #main {
    height: 100%;
    max-height: 100dvh;
  }

  .btn-close-sidebar { display: grid; }
  #btn-menu { display: inline-grid; }

  .greeting { margin-bottom: 1.25rem; }
  .composer-wrap { padding-left: 0.85rem; padding-right: 0.85rem; }
  .messages { padding-left: 0.85rem; padding-right: 0.85rem; }
}

@media (min-width: 769px) {
  #btn-menu, .btn-close-sidebar { display: none; }
  .sidebar-overlay { display: none !important; }
}

body.sidebar-open { overflow: hidden; }