:root {
    color-scheme: light;
    --bg-start: #f9fbfa;
    --bg-end: #f2f6f4;
    --glow-left: rgba(15, 118, 110, 0.10);
    --glow-right: rgba(245, 158, 11, 0.10);
    --grid-line: rgba(20, 35, 31, 0.03);
    --shell-bg: rgba(255, 255, 255, 0.70);
    --shell-border: rgba(255, 255, 255, 0.70);
    --panel-bg: rgba(255, 255, 255, 0.55);
    --panel-strong: rgba(255, 255, 255, 0.80);
    --aside-glow: radial-gradient(circle at top left, rgba(15, 118, 110, 0.16), transparent 42%), radial-gradient(circle at top right, rgba(245, 158, 11, 0.10), transparent 30%), linear-gradient(180deg, rgba(255,255,255,0.94), rgba(244,247,246,0.96));
    --card-bg: rgba(255, 255, 255, 0.88);
    --line: #d5e2dc;
    --text-main: #14231f;
    --text-soft: #6b7c76;
    --surface: #fbfdfc;
    --surface-soft: #f4f7f6;
    --primary: #0f766e;
    --primary-deep: #0b5d57;
    --primary-soft: #dff4ef;
    --accent-soft: #fff3d6;
    --accent-text: #9a6700;
    --shadow-soft: 0 22px 60px rgba(18, 42, 35, 0.10);
    --shadow-float: 0 18px 40px rgba(15, 118, 110, 0.16);
    --message-bot-bg: #ffffff;
    --message-user-bg: linear-gradient(135deg, #0f766e 0%, #14857c 100%);
    --input-bg: #ffffff;
    --status-dot: #10b981;
    --overlay-bg: rgba(255, 255, 255, 0.68);
}

html[data-theme='dark'] {
    color-scheme: dark;
    --bg-start: #020202;
    --bg-end: #0a0a0a;
    --glow-left: rgba(31, 162, 148, 0.10);
    --glow-right: rgba(224, 146, 33, 0.08);
    --grid-line: rgba(255, 255, 255, 0.04);
    --shell-bg: rgba(8, 8, 8, 0.94);
    --shell-border: rgba(255, 255, 255, 0.08);
    --panel-bg: rgba(10, 10, 10, 0.98);
    --panel-strong: rgba(15, 15, 15, 0.98);
    --aside-glow: linear-gradient(180deg, rgba(12,12,12,0.98), rgba(8,8,8,1));
    --card-bg: rgba(20, 20, 20, 0.98);
    --line: #2d2d2d;
    --text-main: #ffffff;
    --text-soft: #d3d3d3;
    --surface: #111111;
    --surface-soft: #171717;
    --primary: #35b3a8;
    --primary-deep: #288d84;
    --primary-soft: rgba(53, 179, 168, 0.16);
    --accent-soft: rgba(224, 146, 33, 0.14);
    --accent-text: #f3bf5d;
    --shadow-soft: 0 24px 80px rgba(0, 0, 0, 0.6);
    --shadow-float: 0 18px 48px rgba(0, 0, 0, 0.4);
    --message-bot-bg: rgba(20, 20, 20, 0.98);
    --message-user-bg: linear-gradient(135deg, #1b9f94 0%, #2a756f 100%);
    --input-bg: #101010;
    --status-dot: #4ade80;
    --overlay-bg: rgba(0, 0, 0, 0.74);
}

body {
    color: var(--text-main);
    background:
        radial-gradient(circle at 12% 18%, var(--glow-left), transparent 18%),
        radial-gradient(circle at 88% 12%, var(--glow-right), transparent 16%),
        linear-gradient(180deg, var(--bg-start) 0%, var(--bg-end) 100%);
    transition: background 0.55s cubic-bezier(0.22, 1, 0.36, 1), color 0.35s ease;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.22;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 24px 24px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.15));
}

.app-shell { background: var(--shell-bg); border-color: var(--shell-border); box-shadow: var(--shadow-soft); }
.aside-panel { background-image: var(--aside-glow); }
.main-panel { background: var(--panel-bg); }
.topbar, .footer-panel { background: var(--panel-strong); }
.card-soft, .quick-card, .bot-message, .surface-card, .theme-toggle, .mobile-toggle, .input-shell, .front-panel { background: var(--card-bg); border-color: var(--line); }
.text-main { color: var(--text-main); }
.text-soft { color: var(--text-soft); }
.line-color { border-color: var(--line); }
.surface-soft-bg { background: var(--surface-soft); }
.overlay-bg { background: var(--overlay-bg); }
.primary-bg { background: var(--primary); }
.primary-text { color: var(--primary); }
.primary-button { background: var(--primary); }
.primary-button:hover { background: var(--primary-deep); }
.message-user { background: var(--message-user-bg); box-shadow: var(--shadow-float); }
.bot-message { background: var(--message-bot-bg); }
.input-box { background: var(--input-bg); border-color: var(--line); color: var(--text-main); }
.input-box::placeholder { color: color-mix(in srgb, var(--text-soft) 72%, transparent); }
.input-box:focus { border-color: var(--primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 12%, transparent); }
.status-dot { background: var(--status-dot); }

.scrollbar-thin::-webkit-scrollbar { width: 8px; }
.scrollbar-thin::-webkit-scrollbar-thumb { background: rgba(15, 118, 110, 0.28); border-radius: 999px; }
.scrollbar-thin::-webkit-scrollbar-track { background: transparent; }

.message-appear { animation: message-rise 0.45s cubic-bezier(0.22, 1, 0.36, 1); }
.float-in { animation: float-in 0.85s cubic-bezier(0.16, 1, 0.3, 1); }

@keyframes message-rise {
    from { opacity: 0; transform: translateY(18px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes float-in {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: translateY(0); }
}

.theme-transition,
.theme-transition *,
.theme-transition *::before,
.theme-transition *::after {
    transition: background-color 0.45s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.45s cubic-bezier(0.22, 1, 0.36, 1), color 0.35s ease, box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease, transform 0.35s ease, background 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.mobile-sidebar { max-height: 0; overflow: hidden; opacity: 0; transition: max-height 0.5s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease; }
.mobile-sidebar.is-open { max-height: 2000px; opacity: 1; }
.front-embed-card { border: 1px solid var(--line); background: var(--card-bg); border-radius: 24px; padding: 1.5rem; box-shadow: 0 10px 30px rgba(18,42,35,0.06); }
.menu-group summary::-webkit-details-marker { display: none; }
.profile-grid-card { background: var(--surface-soft); border: 1px solid var(--line); border-radius: 24px; }
.keyword-chip { background: var(--surface-soft); border-color: var(--line); }
.order-card,
.keywords-panel,
.order-status-badge,
.empty-state-card { border-color: var(--line); }
.top-action-link { border-color: var(--line); background: var(--card-bg); }
.site-footer-bar { background: var(--panel-strong); border-color: var(--line); color: var(--text-soft); }
.menu-item-link,
.menu-item-button { background: var(--card-bg); border-color: transparent; }
.account-hero {
    background:
        radial-gradient(circle at top left, rgba(15,118,110,0.18), transparent 32%),
        linear-gradient(180deg, rgba(255,255,255,0.92), rgba(247,251,250,0.96));
}

.account-stat-card {
    border: 1px solid var(--line);
    background: var(--surface-soft);
    border-radius: 24px;
    padding: 1.25rem;
}

.plan-card {
    border: 1px solid var(--line);
    background: var(--surface-soft);
    border-radius: 24px;
    padding: 1.25rem;
}

html[data-theme='dark'] body {
    background: linear-gradient(180deg, #000000 0%, #050505 100%);
}

html[data-theme='dark'] body::before {
    opacity: 0.12;
}

html[data-theme='dark'] .app-shell,
html[data-theme='dark'] .main-panel,
html[data-theme='dark'] .topbar,
html[data-theme='dark'] .footer-panel,
html[data-theme='dark'] .aside-panel {
    background-image: none !important;
    background-color: transparent !important;
}

html[data-theme='dark'] .quick-card,
html[data-theme='dark'] .surface-card,
html[data-theme='dark'] .card-soft,
html[data-theme='dark'] .front-embed-card,
html[data-theme='dark'] .bot-message,
html[data-theme='dark'] .input-shell,
html[data-theme='dark'] .theme-toggle,
html[data-theme='dark'] .mobile-toggle,
html[data-theme='dark'] .top-action-link,
html[data-theme='dark'] .menu-item-link,
html[data-theme='dark'] .menu-item-button,
html[data-theme='dark'] .site-footer-bar {
    color: var(--text-main);
    border-color: var(--line);
}

html[data-theme='dark'] a,
html[data-theme='dark'] button,
html[data-theme='dark'] summary,
html[data-theme='dark'] input,
html[data-theme='dark'] textarea,
html[data-theme='dark'] select {
    color: var(--text-main);
}

html[data-theme='dark'] .bg-white,
html[data-theme='dark'] .bg-white\/70,
html[data-theme='dark'] .bg-white\/90,
html[data-theme='dark'] .bg-white\/85 {
    background: rgba(20, 20, 20, 0.98) !important;
}

html[data-theme='dark'] .bg-\[\#f8fbfa\] {
    background: rgba(20, 20, 20, 0.98) !important;
}

html[data-theme='dark'] .text-\[\#687b74\],
html[data-theme='dark'] .text-soft,
html[data-theme='dark'] .text-slate-600,
html[data-theme='dark'] .text-\[\#14231f\] {
    color: #d3d3d3 !important;
}

html[data-theme='dark'] .text-main,
html[data-theme='dark'] .font-bold,
html[data-theme='dark'] .font-semibold {
    color: #ffffff !important;
}

html[data-theme='dark'] .bg-green-50,
html[data-theme='dark'] .bg-red-50 {
    background-color: rgba(20, 20, 20, 0.98) !important;
}

html[data-theme='dark'] .border-green-200 {
    border-color: rgba(74, 222, 128, 0.28) !important;
}

html[data-theme='dark'] .border-red-200 {
    border-color: rgba(248, 113, 113, 0.28) !important;
}

html[data-theme='dark'] .text-green-700 {
    color: #86efac !important;
}

html[data-theme='dark'] .text-red-700 {
    color: #fca5a5 !important;
}

html[data-theme='dark'] .profile-grid-card,
html[data-theme='dark'] .account-hero,
html[data-theme='dark'] .account-stat-card,
html[data-theme='dark'] .plan-card,
html[data-theme='dark'] .keyword-chip,
html[data-theme='dark'] .order-card,
html[data-theme='dark'] .empty-state-card,
html[data-theme='dark'] .rounded-\[24px\],
html[data-theme='dark'] .rounded-\[22px\],
html[data-theme='dark'] .rounded-\[20px\] {
    background-color: rgba(20, 20, 20, 0.98);
    border-color: #2d2d2d;
}

html[data-theme='dark'] .site-footer-bar {
    background: rgba(10, 10, 10, 0.98) !important;
}

html[data-theme='dark'] .bg-amber-100 {
    background-color: rgba(245, 158, 11, 0.14) !important;
}

html[data-theme='dark'] .text-amber-700 {
    color: #f3bf5d !important;
}

html[data-theme='dark'] .bg-slate-100 {
    background-color: rgba(148, 163, 184, 0.14) !important;
}

html[data-theme='dark'] .text-slate-600 {
    color: #cbd5e1 !important;
}

@media (min-width: 1280px) {
    .mobile-sidebar { max-height: none; opacity: 1; overflow: visible; }
}

@media (max-width: 767px) {
    .message-compact { gap: 0.75rem; }
    .avatar-compact { height: 2.25rem; width: 2.25rem; border-radius: 1rem; font-size: 0.75rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}