:root {
    --stone-50: #fafaf9;
    --stone-100: #f5f5f4;
    --stone-200: #e7e5e4;
    --stone-300: #d6d3d1;
    --stone-400: #a8a29e;
    --stone-500: #78716c;
    --stone-600: #57534e;
    --stone-700: #44403c;
    --stone-800: #292524;
    --stone-900: #1c1917;
    
    --amber-50: #fffbeb;
    --amber-100: #fef3c7;
    --amber-200: #fde68a;
    --amber-400: #fbbf24;
    --amber-500: #f59e0b;
    --amber-600: #d97706;
    --amber-700: #b45309;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--stone-50);
    color: var(--stone-800);
    -webkit-font-smoothing: antialiased;
}

.bg-stone-light { background-color: var(--stone-50); }
.bg-stone-100 { background-color: var(--stone-100); }
.bg-amber { background-color: var(--amber-400); }
.bg-amber-100 { background-color: var(--amber-100); }
.bg-amber-50 { background-color: var(--amber-50); }
.text-amber { color: var(--amber-500); }
.text-amber-dark { color: var(--amber-600); }
.text-stone-900 { color: var(--stone-900); }
.text-stone-800 { color: var(--stone-800); }
.text-stone-700 { color: var(--stone-700); }
.text-stone-600 { color: var(--stone-600); }
.text-stone-500 { color: var(--stone-500); }
.text-stone-400 { color: var(--stone-400); }
.border-stone-200 { border-color: var(--stone-200) !important; }
.border-stone-300 { border-color: var(--stone-300) !important; }

/* Font size utilities */
.fs-7 { font-size: 0.875rem; }
.fs-8 { font-size: 0.775rem; }
.fs-9 { font-size: 0.700rem; }

/* Brand Badge */
.brand-badge {
    width: 38px;
    height: 38px;
    font-size: 1rem;
}
.brand-badge-sm {
    width: 28px;
    height: 28px;
    font-size: 0.75rem;
}
.brand-title {
    font-size: 0.95rem;
    letter-spacing: -0.02em;
}
.brand-subtitle {
    font-size: 0.65rem;
    letter-spacing: 0.05em;
}

/* Pulse Dot */
.inline-flex-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--amber-50);
    border: 1px solid var(--amber-200);
    color: var(--amber-700);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 9999px;
}
.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--amber-500);
    border-radius: 50%;
    animation: pulseGlow 1.8s infinite;
}
@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.6; }
}

/* Online Indicator */
.online-indicator {
    display: inline-block;
    width: 7px;
    height: 7px;
    background-color: #22c55e;
    border-radius: 50%;
}

/* AI Super Bar */
.ai-super-bar {
    max-width: 680px;
    transition: all 0.25s ease;
}
.ai-super-bar:focus-within {
    border-color: var(--amber-400) !important;
    box-shadow: 0 10px 25px -5px rgba(217, 119, 6, 0.15) !important;
}

/* Tag Cloud Animation */
@keyframes scrollCloud {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.tag-cloud-wrapper {
    max-width: 680px;
    margin: 0 auto;
}
.tag-cloud-wrapper::before, .tag-cloud-wrapper::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    width: 40px;
    z-index: 2;
    pointer-events: none;
}
.tag-cloud-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--stone-50), transparent);
}
.tag-cloud-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--stone-50), transparent);
}
.tag-cloud-inner {
    display: flex;
    width: max-content;
    animation: scrollCloud 28s linear infinite;
}
.tag-cloud-inner:hover {
    animation-play-state: paused;
}

/* Cards & Interactions */
.hover-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.hover-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.08) !important;
}
.hover-text-amber:hover {
    color: var(--amber-600) !important;
}
.cursor-pointer { cursor: pointer; }

/* YouTube Aspect Ratios */
.aspect-ratio-short {
    aspect-ratio: 9 / 14;
}
.video-play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.2s ease;
}
.hover-card:hover .video-play-overlay {
    opacity: 1;
}
.play-icon-circle {
    width: 44px;
    height: 44px;
}

/* Line Clamps */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Feature icon box */
.feature-icon-box {
    width: 46px;
    height: 46px;
}

/* Chat Styles */
.chat-container-card {
    height: 640px;
}
.chat-messages-scroll {
    flex-grow: 1;
    overflow-y: auto;
}
.message-bubble {
    max-width: 85%;
    font-size: 0.875rem;
    line-height: 1.6;
}
.user-bubble {
    background-color: var(--stone-900);
    color: #ffffff;
    border-bottom-right-radius: 4px !important;
}
.ai-bubble {
    background-color: #ffffff;
    color: var(--stone-800);
    border: 1px solid var(--stone-200);
    border-bottom-left-radius: 4px !important;
}

/* Typing cursor animation */
.typing-cursor::after {
    content: '▋';
    display: inline-block;
    color: var(--amber-500);
    animation: blinkCursor 0.8s infinite;
    margin-left: 2px;
}
@keyframes blinkCursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Checklist Cards */
.checklist-card {
    height: 640px;
}
.task-item-card {
    transition: all 0.2s ease;
}
.task-item-card.is-done .task-title {
    text-decoration: line-through;
}
.accent-amber {
    accent-color: var(--amber-600);
}

/* Custom scrollbars */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #e2e8f0; border-radius: 9999px; }
::-webkit-scrollbar-thumb:hover { background: #cbd5e1; }