/* ================================================================
   VOXAROID — client.css
   Espresso / Caramel / Walnut design system (from RTR client.css)
   Dark = espresso glass (default) · Light = cream & sand
   Theme is switched by the `dark` class on <html>.
   ================================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
:focus-visible { outline: 2px solid var(--caramel); outline-offset: 2px; }

/* ---------- Tokens ---------- */
:root, html.dark {
  --caramel: #C4956A; --sand: #D9B896; --brown: #8B5E3C;
  --bg-base: #120800; --surface-1: #0D0500; --surface-2: #180C04; --surface-3: #22120A;
  --text-primary: #F5EFE6; --text-secondary: #D9B896; --text-muted: #9A7452;
  --glass: rgba(255,255,255,.05); --glass-bg: rgba(24,12,4,.72); --glass-border: rgba(255,255,255,.14);
  --border-soft: rgba(196,149,106,.10); --border-mid: rgba(196,149,106,.20);
  --bubble-user: linear-gradient(135deg, #8B5E3C, #C4956A); --bubble-user-text: #fff;
  --bubble-ai: #22120A; --accent-wash: rgba(196,149,106,.12);
  --logo-1: #F0D9BC; --logo-2: #C4956A; --logo-3: #8B5E3C;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.18), 0 2px 8px rgba(0,0,0,.22);
  --shadow-lg: 0 6px 16px rgba(0,0,0,.26), 0 24px 56px rgba(0,0,0,.46);
  --bg-glow: radial-gradient(60rem 40rem at 85% -10%, rgba(196,149,106,.10), transparent 60%);
  color-scheme: dark;
}
html:not(.dark) {
  --bg-base: #F5EFE6; --surface-1: #FFFFFF; --surface-2: #FBF7F1; --surface-3: #EFE6D8;
  --text-primary: #2A1608; --text-secondary: #5E4128; --text-muted: #8B6A4B;
  --glass: rgba(139,94,60,.05); --glass-bg: rgba(255,252,247,.82); --glass-border: rgba(139,94,60,.18);
  --border-soft: rgba(139,94,60,.12); --border-mid: rgba(139,94,60,.24);
  --bubble-ai: #FFFFFF; --accent-wash: rgba(139,94,60,.10);
  --logo-1: #C4956A; --logo-2: #8B5E3C; --logo-3: #4A2C14;
  --shadow-sm: 0 1px 2px rgba(60,30,10,.08), 0 2px 8px rgba(60,30,10,.08);
  --shadow-lg: 0 6px 16px rgba(60,30,10,.12), 0 24px 56px rgba(60,30,10,.18);
  --bg-glow: radial-gradient(60rem 40rem at 85% -10%, rgba(196,149,106,.22), transparent 60%);
  color-scheme: light;
}
:root {
  --success: #4CAF78; --danger: #E05C3A; --info: #5C8FE0; --warning: #E0A93A;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --radius-sm: .5rem; --radius-md: .75rem; --radius-lg: 1rem; --radius-xl: 1.5rem;
  --ease: cubic-bezier(.16, 1, .3, 1); --chat-fs: .9375rem;
}

/* ---------- Base ---------- */
body {
  min-height: 100vh; font-family: var(--font-body); font-size: var(--chat-fs); line-height: 1.6;
  color: var(--text-primary); background: var(--bg-glow), var(--bg-base);
  background-attachment: fixed; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
body.font-sans { font-family: var(--font-body); }
body.font-serif { font-family: var(--font-display); }
body.font-mono { font-family: var(--font-mono); }
body.text-sm { --chat-fs: .8125rem; } body.text-base { --chat-fs: .9375rem; } body.text-lg { --chat-fs: 1.0625rem; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; }
.hidden { display: none !important; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.muted { color: var(--text-muted); } .secondary { color: var(--text-secondary); }

/* ---------- Logo (same VX mark, new colour) ---------- */
.voxaroid-icon {
  font-family: 'Arial Black', sans-serif; font-size: 2rem; line-height: 1.1; display: inline-block;
  background: linear-gradient(135deg, var(--logo-1) 0%, var(--logo-2) 50%, var(--logo-3) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; position: relative;
}
.voxaroid-icon::before { content: 'V'; position: absolute; left: 0; }
.voxaroid-icon::after { content: 'X'; position: absolute; left: .6em; transform: scale(.8); }
.logo-sm { font-size: 1.9rem; } .logo-md { font-size: 3rem; } .logo-xl { font-size: 5.5rem; }

/* ---------- Buttons ---------- */
.btn {
  padding: .75rem 1.4rem; border-radius: var(--radius-sm); font-weight: 600; font-size: .86rem;
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem; white-space: nowrap;
  transition: all .3s var(--ease);
}
.btn:disabled { opacity: .5; cursor: not-allowed; pointer-events: none; }
.btn:active { transform: scale(.98); }
.btn-primary { background: linear-gradient(135deg, var(--brown), var(--caramel)); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-ghost { border: 1px solid var(--border-mid); color: var(--text-secondary); }
.btn-ghost:hover { border-color: var(--caramel); color: var(--caramel); }
.btn-block { width: 100%; } .btn-sm { padding: .4rem .95rem; font-size: .74rem; border-radius: 999px; }
.link-btn { display: block; width: 100%; padding: .4rem; font-size: .84rem; color: var(--caramel); }
.link-btn:hover { text-decoration: underline; text-underline-offset: 3px; }
.icon-btn {
  width: 2.5rem; height: 2.5rem; border-radius: 50%; display: grid; place-items: center;
  color: var(--text-secondary); transition: all .25s var(--ease);
}
.icon-btn:hover { background: var(--accent-wash); color: var(--caramel); }
.icon-btn.recording, .voice-recording { color: var(--danger); animation: pulse 1s infinite; }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 1.1rem; }
.form-group > label { display: block; font-size: .76rem; font-weight: 600; color: var(--text-secondary); margin-bottom: .45rem; }
.input, .form-group input, .form-group select {
  width: 100%; padding: .8rem 1rem; border-radius: var(--radius-sm); background: var(--glass);
  border: 1px solid var(--border-mid); font-size: .92rem; outline: none;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.input:focus, .form-group input:focus, .form-group select:focus { border-color: var(--caramel); box-shadow: 0 0 0 3px rgba(196,149,106,.16); }
.input::placeholder, .form-group input::placeholder { color: var(--text-muted); opacity: .6; }
.form-group select { appearance: none; padding-right: 2.3rem; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23C4956A' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .9rem center; }
.form-group select option { background: var(--surface-2); color: var(--text-primary); }
.code-input { text-align: center; font-size: 1.6rem; letter-spacing: .5em; }
.auth-stack > * + * { margin-top: .25rem; }
.auth-head { text-align: center; margin-bottom: 1.75rem; }
.auth-head h1, .auth-head h3 { font-size: 1.6rem; margin: .6rem 0 .3rem; }
.google-slot { margin-top: 1.25rem; display: flex; justify-content: center; }

/* ---------- Glass modal ---------- */
.modal-bg {
  position: fixed; inset: 0; z-index: 250; display: flex; align-items: center; justify-content: center;
  padding: 1.25rem; background: rgba(8,3,0,.62); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px);
  animation: fadeIn .25s ease;
}
.modal {
  width: 100%; max-width: 28rem; max-height: 92vh; overflow-y: auto; border-radius: var(--radius-lg);
  padding: 2rem; background: var(--glass-bg); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border); box-shadow: 0 1px 0 rgba(255,255,255,.07) inset, var(--shadow-lg);
  animation: fadeUp .35s var(--ease);
}
.modal-wide { max-width: 34rem; }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.modal-head h3 { font-size: 1.35rem; }
.setting-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.25rem; }
.setting-row h4 { font-family: var(--font-body); font-size: .92rem; }
.setting-row p, .fine { font-size: .78rem; color: var(--text-muted); }
.about { padding-top: 1.25rem; border-top: 1px solid var(--border-soft); }
.about h4 { margin-bottom: .5rem; }
.about p { font-size: .84rem; color: var(--text-secondary); margin-bottom: .6rem; }
.switch { position: relative; width: 2.75rem; height: 1.5rem; border-radius: 999px; background: var(--surface-3); border: 1px solid var(--border-mid); flex-shrink: 0; transition: all .3s var(--ease); }
.switch-knob { position: absolute; top: 2px; left: 2px; width: 1.1rem; height: 1.1rem; border-radius: 50%; background: var(--sand); transition: transform .3s var(--ease); }
.switch.on { background: linear-gradient(135deg, var(--brown), var(--caramel)); border-color: transparent; }
.switch.on .switch-knob { transform: translateX(1.25rem); background: #fff; }

/* ---------- Plans ---------- */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.plan { padding: 1.1rem; border-radius: var(--radius-md); border: 1px solid var(--border-soft); background: var(--glass); }
.plan.pro { border-color: var(--caramel); background: var(--accent-wash); }
.plan h4 { font-size: 1.05rem; margin-bottom: .6rem; }
.plan li { font-size: .82rem; display: flex; gap: .5rem; align-items: baseline; margin-bottom: .4rem; color: var(--text-secondary); }
.plan .fa-check { color: var(--success); } .plan .fa-times { color: var(--danger); }
.price { text-align: center; margin-bottom: 1.5rem; font-family: var(--font-display); font-size: 2.6rem; }
.price small { font-family: var(--font-body); font-size: .9rem; color: var(--text-muted); }

/* ---------- App shell ---------- */
.app-shell { display: flex; height: 100vh; height: 100dvh; overflow: hidden; }
.sidebar {
  position: fixed; inset: 0 auto 0 0; z-index: 200; width: 18.5rem; max-width: 86vw; display: flex; flex-direction: column;
  background: var(--glass-bg); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-right: 1px solid var(--glass-border); transform: translateX(-100%); transition: transform .3s var(--ease);
}
.sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
.sidebar-bg { position: fixed; inset: 0; z-index: 150; background: rgba(0,0,0,.55); animation: fadeIn .25s ease; }
.sidebar-head { padding: 1.25rem; border-bottom: 1px solid var(--border-soft); }
.brand { display: flex; align-items: center; gap: .7rem; margin-bottom: 1rem; }
.brand h2 { font-size: 1.15rem; }
.brand small { display: block; font-size: .74rem; color: var(--text-muted); }
.brand .btn-sm { margin-left: auto; }
.history { flex: 1; overflow-y: auto; padding: .75rem; }
.history-item { padding: .7rem .85rem; border-radius: var(--radius-sm); cursor: pointer; border: 1px solid transparent; margin-bottom: .3rem; transition: all .25s var(--ease); }
.history-item:hover { background: var(--accent-wash); }
.history-item.active { background: var(--accent-wash); border-color: var(--border-mid); }
.history-item .t { font-size: .88rem; font-weight: 500; }
.history-item .d { font-size: .72rem; color: var(--text-muted); }
.empty-state { text-align: center; padding: 2.5rem 1rem; color: var(--text-muted); font-size: .84rem; }
.empty-state i { font-size: 1.6rem; color: var(--caramel); margin-bottom: .6rem; }
.sidebar-foot { display: flex; gap: .5rem; padding: .85rem; border-top: 1px solid var(--border-soft); }
.sidebar-foot .btn { flex: 1; }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar { display: flex; align-items: center; gap: .75rem; padding: .85rem 1.25rem; border-bottom: 1px solid var(--glass-border); background: var(--glass-bg); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.topbar h1 { font-size: 1.15rem; }

/* ---------- Messages ---------- */
.messages { flex: 1; overflow-y: auto; padding: 1.5rem 1.25rem; }
.chat-column { max-width: 52rem; margin: 0 auto; display: flex; flex-direction: column; gap: 1.25rem; }
.welcome { max-width: 36rem; margin: 0 auto; text-align: center; padding: 5rem 0 2rem; animation: fadeUp .6s var(--ease); }
.welcome h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin: 1rem 0 .6rem; }
.welcome p { color: var(--text-secondary); }
.msg { display: flex; gap: .7rem; max-width: 100%; animation: fadeUp .3s var(--ease); }
.msg.user { justify-content: flex-end; }
.msg-body { display: flex; flex-direction: column; max-width: min(42rem, 85%); }
.msg.user .msg-body { align-items: flex-end; }
.avatar { width: 2rem; height: 2rem; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0; font-size: .8rem; }
.avatar.ai { background: linear-gradient(135deg, var(--brown), var(--caramel)); color: #fff; }
.avatar.me { background: var(--surface-3); color: var(--text-secondary); border: 1px solid var(--border-mid); }
.bubble { padding: .8rem 1.1rem; border-radius: var(--radius-xl); font-size: var(--chat-fs); white-space: pre-wrap; word-break: break-word; box-shadow: var(--shadow-sm); }
.msg.ai .bubble { background: var(--bubble-ai); border: 1px solid var(--border-soft); border-top-left-radius: .35rem; }
.msg.user .bubble { background: var(--bubble-user); color: var(--bubble-user-text); border-top-right-radius: .35rem; }
.msg-time { font-size: .7rem; color: var(--text-muted); margin-top: .3rem; padding: 0 .5rem; }
.msg-file { display: flex; align-items: center; gap: .5rem; padding: .45rem .7rem; margin-bottom: .5rem; border-radius: var(--radius-sm); background: rgba(0,0,0,.18); font-size: .8rem; white-space: normal; }
.msg-img { max-width: 16rem; border-radius: var(--radius-sm); margin-bottom: .6rem; cursor: zoom-in; }
.msg-img.expanded { max-width: 100%; cursor: zoom-out; }
.icon-pdf { color: var(--danger); } .icon-word { color: var(--info); } .icon-img { color: var(--success); } .icon-file { color: var(--text-muted); }
.typing { padding: 0 1.25rem .5rem; }
.typing .msg { max-width: 52rem; margin: 0 auto; align-items: center; }
.typing-dots { display: inline-flex; padding: .8rem 1.1rem; border-radius: var(--radius-xl); background: var(--bubble-ai); border: 1px solid var(--border-soft); }
.typing-dots span { height: 8px; width: 8px; margin: 0 2px; border-radius: 50%; background: var(--caramel); animation: typing 1.4s infinite ease-in-out; }
.typing-dots span:nth-child(1) { animation-delay: -.32s; } .typing-dots span:nth-child(2) { animation-delay: -.16s; }

/* ---------- Composer ---------- */
.composer { padding: 1rem 1.25rem 1.25rem; }
.composer-inner { max-width: 52rem; margin: 0 auto; }
.file-drop-zone { border: 2px dashed var(--border-mid); border-radius: var(--radius-lg); padding: 2rem; margin-bottom: .75rem; text-align: center; color: var(--text-secondary); transition: all .3s ease; }
.file-drop-zone i { font-size: 2rem; color: var(--caramel); margin-bottom: .5rem; }
.file-drop-zone.dragover { border-color: var(--caramel); background: var(--accent-wash); }
.file-chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: .75rem; }
.file-chip { display: flex; align-items: center; gap: .5rem; padding: .4rem .75rem; border-radius: 999px; background: var(--glass); border: 1px solid var(--border-mid); font-size: .8rem; }
.file-chip .name { max-width: 9rem; } .file-chip button { color: var(--danger); }
.composer-bar {
  display: flex; align-items: flex-end; gap: .35rem; padding: .45rem .5rem .45rem 1.1rem; border-radius: var(--radius-xl);
  background: var(--glass-bg); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border); box-shadow: var(--shadow-lg); transition: border-color .25s var(--ease);
}
.composer-bar:focus-within { border-color: var(--caramel); }
.composer-bar textarea { flex: 1; resize: none; background: none; border: none; outline: none; padding: .6rem 0; max-height: 7.5rem; font-size: var(--chat-fs); }
.composer-bar textarea::placeholder { color: var(--text-muted); }
.send-btn { width: 2.75rem; height: 2.75rem; border-radius: 50%; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--brown), var(--caramel)); flex-shrink: 0; transition: all .3s var(--ease); }
.send-btn:hover { transform: scale(1.06); } .send-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ---------- Toasts ---------- */
.toast-stack { position: fixed; top: 1rem; right: 1rem; z-index: 500; display: flex; flex-direction: column; gap: .6rem; align-items: flex-end; max-width: calc(100vw - 2rem); }
.toast { display: flex; align-items: center; gap: .6rem; max-width: 22rem; padding: .8rem 1.1rem; border-radius: var(--radius-sm); background: var(--surface-1); border: 1px solid var(--border-mid); border-left: 3px solid var(--caramel); font-size: .85rem; font-weight: 500; box-shadow: var(--shadow-lg); opacity: 0; transform: translateY(-.8rem); transition: opacity .25s var(--ease), transform .25s var(--ease); }
.toast.show { opacity: 1; transform: none; }
.toast.success { border-left-color: var(--success); } .toast.error { border-left-color: var(--danger); } .toast.warning { border-left-color: var(--warning); } .toast.info { border-left-color: var(--info); }
.status-dot { width: .5rem; height: .5rem; border-radius: 50%; } .status-dot.online { background: var(--success); } .status-dot.offline { background: var(--danger); }

/* ---------- Scrollbar & motion ---------- */
::-webkit-scrollbar { width: .5rem; height: .5rem; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--brown); border-radius: 999px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: var(--caramel); background-clip: padding-box; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(.6rem); } to { opacity: 1; transform: none; } }
@keyframes typing { 0%, 80%, 100% { transform: scale(.8); opacity: .5; } 40% { transform: scale(1); opacity: 1; } }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.1); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; } }

/* ---------- Responsive ---------- */
@media (min-width: 1024px) {
  .sidebar { position: static; transform: none; width: 19.5rem; box-shadow: none; flex-shrink: 0; }
  .sidebar-bg, #sidebarToggle, #closeSidebarBtn { display: none !important; }
}
@media (max-width: 560px) {
  .plans { grid-template-columns: 1fr; } .modal { padding: 1.5rem; } .messages { padding: 1rem .85rem; }
  .welcome { padding-top: 3rem; } .msg-body { max-width: 90%; }
}