:root {
  color-scheme: light;
  --jy-primary: #087ef5;
  --jy-primary-hover: #086ed8;
  --jy-cyan: #18c8f5;
  --jy-violet: #7137e8;
  --jy-magenta: #ec0b9b;
  --jy-ink: #05060d;
  --jy-background: #f8f9ff;
  --jy-surface: #ffffff;
  --jy-surface-soft: #f2f4fb;
  --jy-surface-hover: #eceff8;
  --jy-text: #171927;
  --jy-text-secondary: #6b7085;
  --jy-text-tertiary: #9196a8;
  --jy-border: #e2e5ef;
  --jy-border-strong: #cfd4e2;
  --jy-user-message: #edf3ff;
  --jy-focus: rgba(8, 126, 245, .28);
  --jy-shadow-sm: 0 2px 10px rgba(20, 24, 48, .06);
  --jy-shadow-lg: 0 24px 70px rgba(10, 12, 28, .18);
  --jy-gradient: linear-gradient(120deg, var(--jy-magenta), var(--jy-violet) 48%, var(--jy-primary) 78%, var(--jy-cyan));
  --jy-radius-sm: 10px;
  --jy-radius-md: 16px;
  --jy-radius-lg: 24px;
  --jy-sidebar-width: 278px;
  --jy-chat-max-width: 860px;
  --jy-font: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --jy-display: "Manrope", var(--jy-font);
}

[data-theme="dark"] {
  color-scheme: dark;
  --jy-background: #070812;
  --jy-surface: #10121d;
  --jy-surface-soft: #161925;
  --jy-surface-hover: #1d2130;
  --jy-text: #f5f6fb;
  --jy-text-secondary: #a3a9bd;
  --jy-text-tertiary: #72798e;
  --jy-border: #252a3a;
  --jy-border-strong: #394055;
  --jy-user-message: #17233b;
  --jy-shadow-sm: 0 2px 12px rgba(0, 0, 0, .22);
  --jy-shadow-lg: 0 26px 80px rgba(0, 0, 0, .55);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { font-family: var(--jy-font); color: var(--jy-text); background: var(--jy-background); -webkit-font-smoothing: antialiased; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: var(--jy-primary); }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.is-hidden { display: none !important; }
.auth-only { display: none !important; }
[data-authenticated="true"] .auth-only { display: block !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; transform: translateY(-150%); padding: 10px 14px; background: var(--jy-ink); color: #fff; border-radius: 8px; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--jy-focus); outline-offset: 2px; }

.app-shell { min-height: 100dvh; display: grid; grid-template-columns: var(--jy-sidebar-width) minmax(0, 1fr); overflow: hidden; }
.app-shell.sidebar-collapsed { grid-template-columns: 0 minmax(0, 1fr); }
.app-shell.sidebar-collapsed .sidebar { transform: translateX(-100%); }
.sidebar { position: relative; z-index: 30; width: var(--jy-sidebar-width); height: 100dvh; display: flex; flex-direction: column; background: var(--jy-surface-soft); border-right: 1px solid var(--jy-border); transition: transform .24s ease; }
.sidebar-header { height: 72px; padding: 16px 14px 12px 18px; display: flex; align-items: center; justify-content: space-between; }
.brand, .route-brand, .mobile-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--jy-text); text-decoration: none; font: 700 17px var(--jy-display); letter-spacing: -.35px; }
.brand-ai { color: var(--jy-primary); }
.brand-mark { width: 42px; height: 42px; display: block; flex: 0 0 auto; border-radius: 12px; object-fit: contain; background: transparent; filter: drop-shadow(0 3px 8px rgba(22, 27, 55, .2)); }
.brand-mark--small { width: 34px; height: 34px; border-radius: 10px; }
.brand-mark--hero { width: 118px; height: 118px; border-radius: 28px; filter: drop-shadow(0 14px 26px rgba(73, 54, 230, .28)); }
.brand-mark--auth { width: 64px; height: 64px; border-radius: 16px; }
.icon-button { width: 40px; height: 40px; border: 0; border-radius: 11px; background: transparent; display: grid; place-items: center; cursor: pointer; }
.icon-button:hover { background: var(--jy-surface-hover); }
.sidebar-close svg { width: 19px; }
.sidebar-nav { min-height: 0; flex: 1; padding: 7px 12px; overflow-y: auto; }
.new-chat-button { width: 100%; height: 48px; display: flex; align-items: center; gap: 11px; padding: 6px 9px; border: 1px solid var(--jy-border); border-radius: 13px; background: var(--jy-surface); box-shadow: var(--jy-shadow-sm); font-weight: 600; cursor: pointer; }
.new-chat-button:hover { border-color: rgba(8,126,245,.38); transform: translateY(-1px); }
.new-chat-icon { width: 30px; height: 30px; display: grid; place-items: center; color: #fff; background: var(--jy-gradient); border-radius: 9px; }
.new-chat-icon svg { width: 17px; }
.new-chat-button kbd { margin-left: auto; padding: 2px 6px; color: var(--jy-text-tertiary); background: var(--jy-surface-soft); border: 1px solid var(--jy-border); border-radius: 5px; font-size: 10px; font-family: inherit; }
.chat-search { height: 42px; margin-top: 11px; padding: 0 12px; display: flex; align-items: center; gap: 10px; color: var(--jy-text-secondary); border-radius: 11px; }
.chat-search:focus-within, .chat-search:hover { background: var(--jy-surface-hover); }
.chat-search svg { width: 18px; }
.chat-search input { width: 100%; min-width: 0; border: 0; outline: none; background: transparent; color: var(--jy-text); font-size: 14px; }
.chat-search input::placeholder { color: var(--jy-text-secondary); }
.conversation-section { margin-top: 23px; }
.section-label { margin: 0 9px 8px; color: var(--jy-text-tertiary); font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.conversation-list { display: grid; gap: 2px; }
.conversation-item { width: 100%; height: 40px; padding: 0 11px; display: flex; align-items: center; justify-content: space-between; border: 0; border-radius: 10px; background: transparent; cursor: pointer; text-align: left; font-size: 13.5px; }
.conversation-item span:first-child { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.conversation-item:hover, .conversation-item.active { background: var(--jy-surface-hover); }
.item-menu { opacity: 0; color: var(--jy-text-secondary); letter-spacing: 1px; }
.conversation-item:hover .item-menu { opacity: 1; }
.sidebar-footer { padding: 10px 12px 14px; border-top: 1px solid var(--jy-border); }
.sidebar-link { height: 40px; padding: 0 11px; display: flex; align-items: center; gap: 11px; color: var(--jy-text-secondary); text-decoration: none; border-radius: 10px; font-size: 13.5px; }
.sidebar-link:hover { color: var(--jy-text); background: var(--jy-surface-hover); }
.sidebar-link svg { width: 18px; }
.user-card { width: 100%; margin-top: 4px; padding: 9px; display: flex; align-items: center; gap: 10px; border: 0; border-radius: 12px; background: transparent; text-align: left; cursor: pointer; }
.user-card:hover { background: var(--jy-surface-hover); }
.user-card.is-authenticated { align-items: center; }
.user-avatar { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--jy-border); border-radius: 50%; background: var(--jy-surface); color: var(--jy-text-secondary); }
.user-avatar svg { width: 17px; }
.user-copy { min-width: 0; display: grid; gap: 2px; }
.user-copy strong { font-size: 13px; }
.user-copy small { color: var(--jy-text-tertiary); font-size: 10.5px; }
.chevron { margin-left: auto; width: 15px; color: var(--jy-text-tertiary); }
.account-menu { margin-top: 6px; padding: 6px; display: grid; gap: 2px; border: 1px solid var(--jy-border); border-radius: 12px; background: var(--jy-surface); box-shadow: var(--jy-shadow-sm); }
.account-menu a, .account-menu button { width: 100%; min-height: 34px; padding: 0 10px; display: flex; align-items: center; border: 0; border-radius: 9px; background: transparent; color: var(--jy-text); text-decoration: none; text-align: left; cursor: pointer; font-size: 12.5px; font-weight: 600; }
.account-menu a:hover, .account-menu button:hover { background: var(--jy-surface-hover); }
.account-menu button { color: #d92d58; }

.app-main { min-width: 0; height: 100dvh; display: flex; flex-direction: column; background: var(--jy-background); }
.topbar { height: 64px; flex: 0 0 auto; padding: 0 22px 0 13px; display: flex; align-items: center; justify-content: space-between; }
.topbar-start, .topbar-actions { display: flex; align-items: center; gap: 8px; }
.mobile-brand { display: none; }
.model-picker { height: 38px; padding: 0 10px; display: flex; align-items: center; gap: 7px; border: 0; border-radius: 10px; background: transparent; font-weight: 600; cursor: pointer; }
.model-picker:hover { background: var(--jy-surface-soft); }
.model-picker svg { width: 15px; }
.sign-in-button, .share-button { height: 38px; padding: 0 17px; border-radius: 10px; border: 1px solid var(--jy-border-strong); background: var(--jy-surface); cursor: pointer; font-weight: 600; font-size: 13px; }
.sign-in-button:hover, .share-button:hover { border-color: var(--jy-primary); color: var(--jy-primary); }
.share-button { display: flex; gap: 7px; align-items: center; }
.share-button svg { width: 16px; }
.avatar-button { width: 36px; height: 36px; border: 0; border-radius: 50%; background: var(--jy-gradient); color: #fff; font-weight: 700; cursor: pointer; }
.chat-stage { min-height: 0; flex: 1; position: relative; }
.welcome-view { height: 100%; padding: 4vh 28px 24px; display: grid; place-items: center; }
.welcome-content { width: min(100%, 900px); margin-top: -5vh; text-align: center; }
.hero-brand { display: grid; justify-items: center; gap: 12px; }
.eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .23em; background: var(--jy-gradient); background-clip: text; -webkit-background-clip: text; color: transparent; }
.welcome-content h1 { margin: 19px 0 8px; font: 700 clamp(28px, 3.2vw, 40px)/1.15 var(--jy-display); letter-spacing: -.045em; }
.welcome-copy { margin: 0 0 28px; color: var(--jy-text-secondary); font-size: 15px; }
.composer { width: min(100%, 760px); margin-inline: auto; padding: 15px 15px 11px; border: 1px solid var(--jy-border-strong); border-radius: 22px; background: var(--jy-surface); box-shadow: 0 10px 38px rgba(22, 27, 55, .09), 0 1px 3px rgba(22, 27, 55, .06); text-align: left; transition: border-color .2s, box-shadow .2s; }
.composer:focus-within { border-color: rgba(8,126,245,.55); box-shadow: 0 12px 40px rgba(22,27,55,.1), 0 0 0 3px rgba(8,126,245,.08); }
.composer-input { display: block; width: 100%; min-height: 39px; max-height: 190px; padding: 2px 4px; resize: none; overflow-y: auto; border: 0; outline: 0; color: var(--jy-text); background: transparent; line-height: 1.55; font-size: 15px; }
.composer-input::placeholder { color: var(--jy-text-tertiary); }
.composer-toolbar { height: 36px; display: flex; align-items: center; }
.composer-tools { display: flex; gap: 2px; }
.composer-icon { width: 34px; height: 34px; display: grid; place-items: center; border: 0; border-radius: 9px; color: var(--jy-text-secondary); background: transparent; cursor: pointer; }
.composer-icon:hover { background: var(--jy-surface-soft); color: var(--jy-text); }
.composer-icon svg { width: 18px; }
.composer-hint { margin-left: auto; margin-right: 12px; color: var(--jy-text-tertiary); font-size: 10.5px; }
.send-button { width: 35px; height: 35px; display: grid; place-items: center; border: 0; border-radius: 11px; background: var(--jy-surface-hover); color: var(--jy-text-tertiary); cursor: default; transition: transform .16s, background .16s; }
.send-button:not(:disabled) { cursor: pointer; color: #fff; background: var(--jy-gradient); box-shadow: 0 5px 14px rgba(84,55,225,.24); }
.send-button:not(:disabled):hover { transform: translateY(-1px) scale(1.03); }
.send-button svg { width: 18px; stroke-width: 2.2; }
.stop-icon { display: none; fill: currentColor; stroke: none; }
.send-button.is-stopping .send-icon { display: none; }
.send-button.is-stopping .stop-icon { display: block; }
.suggestions { width: min(100%, 820px); margin: 20px auto 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.suggestion-card { min-width: 0; padding: 12px; display: flex; align-items: center; gap: 10px; border: 1px solid var(--jy-border); border-radius: 14px; background: rgba(255,255,255,.45); text-align: left; cursor: pointer; transition: transform .18s, border-color .18s, background .18s; }
[data-theme="dark"] .suggestion-card { background: rgba(16,18,29,.45); }
.suggestion-card:hover { transform: translateY(-2px); border-color: var(--jy-border-strong); background: var(--jy-surface); box-shadow: var(--jy-shadow-sm); }
.suggestion-icon { width: 32px; height: 32px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 9px; }
.suggestion-icon svg { width: 17px; }
.suggestion-create .suggestion-icon { color: var(--jy-magenta); background: rgba(236,11,155,.09); }
.suggestion-code .suggestion-icon { color: var(--jy-violet); background: rgba(113,55,232,.09); }
.suggestion-analyze .suggestion-icon { color: var(--jy-primary); background: rgba(8,126,245,.09); }
.suggestion-learn .suggestion-icon { color: #008fbe; background: rgba(24,200,245,.11); }
.suggestion-card > span:nth-child(2) { min-width: 0; display: grid; gap: 2px; }
.suggestion-card strong { font-size: 12.5px; }
.suggestion-card small { overflow: hidden; color: var(--jy-text-tertiary); font-size: 10.5px; white-space: nowrap; text-overflow: ellipsis; }
.suggestion-arrow { margin-left: auto; width: 14px; color: var(--jy-text-tertiary); opacity: 0; transform: translateX(-3px); transition: .18s; }
.suggestion-card:hover .suggestion-arrow { opacity: 1; transform: none; }

.conversation-view { height: 100%; display: flex; flex-direction: column; }
.message-list { min-height: 0; flex: 1; overflow-y: auto; padding: 44px 28px 210px; scroll-behavior: smooth; }
.message { width: min(100%, var(--jy-chat-max-width)); margin: 0 auto 30px; animation: message-in .25s ease both; }
@keyframes message-in { from { opacity: 0; transform: translateY(7px); } }
.user-message { display: flex; justify-content: flex-end; }
.user-bubble { max-width: 74%; padding: 11px 16px; border-radius: 18px 18px 5px 18px; background: var(--jy-user-message); line-height: 1.55; font-size: 14.5px; white-space: pre-wrap; }
.assistant-message { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 13px; }
.assistant-avatar { width: 38px; height: 38px; display: block; border-radius: 11px; object-fit: contain; background: transparent; filter: drop-shadow(0 2px 6px rgba(22, 27, 55, .18)); }
.assistant-content { min-width: 0; padding-top: 3px; color: var(--jy-text); font-size: 14.5px; line-height: 1.7; }
.assistant-content p { margin: 0 0 13px; }
.assistant-content .stopped-response { color: var(--jy-text-secondary); font-style: italic; }
.assistant-content strong { font-weight: 700; }
.assistant-content ul { margin: 8px 0 14px; padding-left: 21px; }
.assistant-content li { margin: 5px 0; }
.assistant-message > div { min-width: 0; }
.assistant-content { overflow-wrap: anywhere; }
.assistant-content h1, .assistant-content h2, .assistant-content h3, .assistant-content h4, .assistant-content h5, .assistant-content h6 { margin: 22px 0 10px; font-family: var(--jy-display); font-size: 1.15em; line-height: 1.4; }
.assistant-content h1 { font-size: 1.5em; }
.assistant-content h2 { font-size: 1.3em; }
.assistant-content hr { margin: 20px 0; border: 0; border-top: 1px solid var(--jy-border); }
.assistant-content blockquote { margin: 12px 0; padding: 4px 14px; border-left: 3px solid var(--jy-border-strong); color: var(--jy-text-secondary); }
.assistant-content .inline-code { padding: 2px 5px; border-radius: 5px; background: var(--jy-surface-hover); font-family: Consolas, "Cascadia Code", monospace; font-size: .9em; }
.response-link { color: var(--jy-primary); text-decoration: underline; text-underline-offset: 3px; }
.response-link:hover { color: var(--jy-primary-hover); }
.response-web-icon { display: inline-block; width: 16px; height: 16px; margin-right: 4px; vertical-align: -.15em; background: currentColor; -webkit-mask: url('/images/fluent-globe-20-regular.svg') center / contain no-repeat; mask: url('/images/fluent-globe-20-regular.svg') center / contain no-repeat; }
.response-code-block { min-width: 0; margin: 16px 0; overflow: hidden; border: 1px solid var(--jy-border-strong); border-radius: 12px; background: var(--jy-surface); }
.response-code-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 14px; background: var(--jy-surface-soft); border-bottom: 1px solid var(--jy-border); color: var(--jy-text-secondary); font-size: 12px; }
.response-code-header button { display: inline-flex; align-items: center; gap: 6px; min-height: 30px; padding: 3px 8px; border: 0; border-radius: 6px; color: var(--jy-text); background: transparent; cursor: pointer; font-size: 12px; }
.response-code-header button:hover { background: var(--jy-surface-hover); }
.response-code-header svg { width: 16px; height: 16px; }
.response-code-block pre { margin: 0; padding: 16px; max-width: 100%; overflow-x: auto; white-space: pre; overflow-wrap: normal; tab-size: 4; line-height: 1.6; font-size: 13px; }
.response-code-block code { font-family: Consolas, "Cascadia Code", monospace; }
.clipboard-fallback { position: fixed; left: -9999px; top: 0; }
.assistant-actions { margin-top: 8px; display: flex; gap: 3px; opacity: .75; }
.assistant-actions button { height: 30px; padding: 0 8px; display: inline-flex; align-items: center; gap: 5px; border: 0; border-radius: 8px; color: var(--jy-text-secondary); background: transparent; cursor: pointer; font-size: 11px; }
.assistant-actions button:hover { color: var(--jy-text); background: var(--jy-surface-soft); }
.assistant-actions svg { width: 15px; }
.thinking { display: inline-flex; align-items: center; gap: 5px; color: var(--jy-text-secondary); }
.thinking-dots { display: inline-flex; gap: 3px; }
.thinking-dots i { width: 4px; height: 4px; border-radius: 50%; background: var(--jy-primary); animation: thinking 1.2s infinite ease-in-out; }
.thinking-dots i:nth-child(2) { animation-delay: .16s; background: var(--jy-violet); }
.thinking-dots i:nth-child(3) { animation-delay: .32s; background: var(--jy-magenta); }
@keyframes thinking { 0%,70%,100% { transform: translateY(0); opacity: .4; } 35% { transform: translateY(-4px); opacity: 1; } }
.conversation-composer-wrap { position: absolute; z-index: 5; bottom: 0; left: 0; right: 0; padding: 28px 28px 11px; background: linear-gradient(transparent, var(--jy-background) 25%); }
.composer-disclaimer { margin: 8px 0 0; text-align: center; color: var(--jy-text-tertiary); font-size: 10.5px; }

.drawer-backdrop { display: none; }
.modal-backdrop { position: fixed; z-index: 100; inset: 0; padding: 24px; display: grid; place-items: center; background: rgba(4,5,13,.56); backdrop-filter: blur(8px); animation: fade-in .2s; }
@keyframes fade-in { from { opacity: 0; } }
.auth-modal { position: relative; width: min(100%, 438px); max-height: calc(100dvh - 40px); overflow-y: auto; padding: 31px 36px 27px; border: 1px solid rgba(255,255,255,.25); border-radius: 24px; background: var(--jy-surface); box-shadow: var(--jy-shadow-lg); animation: modal-in .24s ease; }
@keyframes modal-in { from { opacity: 0; transform: translateY(8px) scale(.98); } }
.modal-close { position: absolute; top: 15px; right: 15px; width: 34px; height: 34px; display: grid; place-items: center; border: 0; border-radius: 9px; background: transparent; color: var(--jy-text-secondary); cursor: pointer; }
.modal-close:hover { background: var(--jy-surface-soft); }
.modal-close svg { width: 17px; }
.auth-brand { display: flex; justify-content: center; margin-bottom: 16px; }
.auth-header { text-align: center; }
.auth-header h2 { margin: 0; font: 700 24px/1.25 var(--jy-display); letter-spacing: -.035em; }
.auth-header p { margin: 9px auto 22px; max-width: 330px; color: var(--jy-text-secondary); font-size: 13px; line-height: 1.5; }
.provider-buttons { display: grid; gap: 9px; }
.provider-button { position: relative; height: 45px; border: 1px solid var(--jy-border-strong); border-radius: 11px; background: var(--jy-surface); cursor: pointer; font-weight: 600; font-size: 13px; }
.provider-button:hover { border-color: var(--jy-text-secondary); background: var(--jy-surface-soft); }
.provider-button > span { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); }
.provider-logo { width: 18px; height: 18px; display: grid; place-items: center; font-size: 18px; line-height: 1; }
.provider-logo .bi { display: block; line-height: 1; }
.google-mark { color: #4285f4; }
.microsoft-mark { width: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 1.5px; }
.microsoft-mark i { width: 7px; height: 7px; background: #f35325; }
.microsoft-mark i:nth-child(2) { background: #81bc06; }.microsoft-mark i:nth-child(3) { background: #05a6f0; }.microsoft-mark i:nth-child(4) { background: #ffba08; }
.apple-mark { color: var(--jy-text); }
.auth-divider { height: 42px; display: flex; align-items: center; gap: 10px; color: var(--jy-text-tertiary); font-size: 9px; font-weight: 700; }
.auth-divider::before, .auth-divider::after { content: ""; height: 1px; flex: 1; background: var(--jy-border); }
.auth-modal label { display: block; margin: 0 0 6px; font-size: 12px; font-weight: 600; }
.auth-modal input { width: 100%; height: 45px; padding: 0 13px; border: 1px solid var(--jy-border-strong); border-radius: 10px; outline: 0; color: var(--jy-text); background: var(--jy-surface); font-size: 13px; }
.auth-modal input:focus { border-color: var(--jy-primary); box-shadow: 0 0 0 3px var(--jy-focus); }
.auth-form-fields { display: grid; gap: 6px; }
.auth-form-fields label:not(:first-child) { margin-top: 7px; }
.field-error { min-height: 17px; margin: 4px 2px; color: #d92d58; font-size: 10.5px; }
.auth-continue { width: 100%; height: 45px; border: 0; border-radius: 11px; background: var(--jy-gradient); color: #fff; font-weight: 700; cursor: pointer; box-shadow: 0 7px 18px rgba(81,54,224,.2); }
.auth-continue:hover { filter: saturate(1.12) brightness(.98); }
.auth-register-note { margin: 13px 0 0; text-align: center; color: var(--jy-text-secondary); font-size: 12px; line-height: 1.5; }
.auth-register-note a { color: var(--jy-primary); font-weight: 700; text-decoration: none; }
.auth-register-note a:hover { text-decoration: underline; }
.auth-terms, .auth-preview-note { margin: 17px 0 0; color: var(--jy-text-tertiary); text-align: center; font-size: 9.5px; line-height: 1.5; }
.auth-terms a { color: inherit; }
.subscription-card { margin: 6px 0 14px; padding: 14px; border: 1px solid var(--jy-border); border-radius: 13px; background: var(--jy-surface-soft); }
.subscription-card h3 { margin: 0 0 5px; font-size: 14px; }
.subscription-card p { margin: 0; color: var(--jy-text-secondary); font-size: 12px; line-height: 1.5; }
.subscription-modules { margin-top: 11px; display: grid; gap: 6px; }
.subscription-module { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--jy-text); font-size: 12px; }
.subscription-module span:last-child { color: var(--jy-primary); font-size: 10px; font-weight: 700; text-transform: uppercase; }
.subscription-status { color: var(--jy-text-secondary); }
.subscription-link { display: block; margin-top: 11px; text-align: center; font-size: 11.5px; font-weight: 700; text-decoration: none; }
.auth-back { margin: -8px 0 22px; padding: 5px; border: 0; background: transparent; color: var(--jy-text-secondary); cursor: pointer; font-size: 12px; }
.auth-step[data-auth-step="verify"] form { display: grid; gap: 9px; }
.toast { position: fixed; z-index: 200; left: 50%; bottom: 24px; transform: translate(-50%, 20px); max-width: calc(100% - 32px); padding: 10px 15px; border-radius: 10px; background: var(--jy-ink); color: #fff; box-shadow: var(--jy-shadow-lg); font-size: 12px; opacity: 0; pointer-events: none; transition: .2s; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.route-shell { min-height: 100dvh; padding: 24px; display: grid; grid-template-rows: auto 1fr; background: radial-gradient(circle at 80% 10%, rgba(8,126,245,.10), transparent 32%), radial-gradient(circle at 12% 80%, rgba(236,11,155,.08), transparent 30%), var(--jy-background); }
.route-brand { width: fit-content; }
.route-card { width: min(100%, 540px); margin: auto; padding: 42px; border: 1px solid var(--jy-border); border-radius: 24px; background: var(--jy-surface); box-shadow: var(--jy-shadow-lg); text-align: center; }
.route-kicker { color: var(--jy-primary); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.route-card h1, .settings-card h1 { margin: 10px 0; font: 700 32px/1.2 var(--jy-display); letter-spacing: -.04em; }
.route-card p, .settings-card > div > p { color: var(--jy-text-secondary); line-height: 1.6; }
.primary-link { display: inline-grid; place-items: center; min-height: 44px; margin-top: 14px; padding: 0 19px; border-radius: 11px; background: var(--jy-gradient); color: #fff; text-decoration: none; font-weight: 700; font-size: 13px; }
.settings-card { width: min(100%, 700px); margin: 60px auto auto; }
.settings-section { margin: 32px 0; padding: 26px; border: 1px solid var(--jy-border); border-radius: 18px; background: var(--jy-surface); }
.settings-section h2 { margin: 0 0 6px; font-size: 18px; }
.settings-section p { margin: 0 0 20px; color: var(--jy-text-secondary); font-size: 13px; }
.theme-options { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.theme-options button { padding: 8px 8px 13px; display: grid; gap: 9px; border: 1px solid var(--jy-border); border-radius: 12px; background: transparent; cursor: pointer; font-size: 12px; }
.theme-options button.active { border-color: var(--jy-primary); box-shadow: 0 0 0 2px var(--jy-focus); }
.theme-preview { height: 72px; border-radius: 8px; border: 1px solid var(--jy-border); background: #f5f6fb; }
.dark-preview { background: #0c0e18; }.system-preview { background: linear-gradient(110deg,#f5f6fb 50%,#0c0e18 50%); }
.text-link { color: var(--jy-primary); text-decoration: none; font-weight: 600; font-size: 13px; }

@media (max-width: 920px) {
  .app-shell, .app-shell.sidebar-collapsed { grid-template-columns: minmax(0,1fr); }
  .sidebar { position: fixed; left: 0; top: 0; transform: translateX(-100%); box-shadow: var(--jy-shadow-lg); }
  .app-shell.sidebar-open .sidebar { transform: translateX(0); }
  .app-shell.sidebar-open .drawer-backdrop { display: block; position: fixed; z-index: 20; inset: 0; background: rgba(4,5,13,.4); backdrop-filter: blur(3px); }
  .mobile-brand { display: inline-flex; }
  .model-picker { display: none; }
  .suggestions { grid-template-columns: 1fr 1fr; max-width: 650px; }
}

@media (max-width: 600px) {
  .topbar { height: 58px; padding: 0 12px 0 8px; border-bottom: 1px solid var(--jy-border); }
  .topbar .sidebar-toggle { width: 38px; }
  .mobile-brand { font-size: 15px; gap: 8px; }
  .mobile-brand .brand-mark { display: none; }
  .sign-in-button { height: 34px; padding: 0 12px; }
  .welcome-view { padding: 18px 16px 24px; align-items: start; }
  .welcome-content { margin-top: 10vh; }
  .brand-mark--hero { width: 96px; height: 96px; border-radius: 22px; }
  .welcome-content h1 { margin-top: 17px; font-size: 27px; }
  .welcome-copy { margin-bottom: 23px; font-size: 13px; }
  .composer { padding: 13px 12px 9px; border-radius: 19px; }
  .composer-hint { display: none; }
  .suggestions { grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 14px; }
  .suggestion-card { padding: 10px; }
  .suggestion-arrow { display: none; }
  .suggestion-card small { display: none; }
  .message-list { padding: 28px 16px 190px; }
  .user-bubble { max-width: 88%; }
  .assistant-message { grid-template-columns: 30px minmax(0,1fr); gap: 10px; }
  .assistant-avatar { width: 34px; height: 34px; border-radius: 10px; }
  .conversation-composer-wrap { padding: 25px 12px 8px; }
  .composer-disclaimer { font-size: 9px; }
  .modal-backdrop { align-items: end; padding: 0; }
  .auth-modal { width: 100%; max-height: 92dvh; padding: 29px 24px 24px; border-radius: 24px 24px 0 0; animation-name: sheet-in; }
  @keyframes sheet-in { from { transform: translateY(100%); } }
  .route-shell { padding: 18px; }
  .route-card { padding: 30px 22px; }
  .theme-options { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}