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

:root {
    --ag2-blue: #4b9cd6;
    --ag2-indigo: #526cfe;
    --ag2-sky-top: #b5e8d5;
    --ag2-sky-bottom: #f5e6a3;
    --ag2-grass: #6abf69;
    --ag2-dirt: #c49a6c;
    --panel-bg: rgba(20, 24, 44, 0.92);
    --panel-border: #4b9cd6;
    --msg-user-bg: #526cfe;
    --msg-bot-bg: rgba(75, 156, 214, 0.15);
    --text-primary: #f0f4f8;
    --text-secondary: #a0b4c8;
    --pixel-border: 3px;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    background: linear-gradient(180deg, var(--ag2-sky-top) 0%, #d4f0e0 25%, #eee8b0 55%, var(--ag2-sky-bottom) 75%, var(--ag2-grass) 85%, var(--ag2-dirt) 95%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Pixel-art ground layer */
.ground-layer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: url('/assets/roadscape.png') repeat-x bottom;
    background-size: auto 120px;
    image-rendering: pixelated;
    z-index: 0;
    opacity: 0.7;
}

/* Cloud decorations */
.cloud {
    position: fixed;
    image-rendering: pixelated;
    opacity: 0.6;
    z-index: 0;
    animation: float 20s ease-in-out infinite;
}
.cloud-1 { top: 5%; left: 5%; width: 100px; animation-delay: 0s; }
.cloud-2 { top: 12%; right: 10%; width: 80px; animation-delay: -7s; }
.cloud-3 { top: 3%; left: 45%; width: 60px; animation-delay: -13s; }
@keyframes float {
    0%, 100% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(15px) translateY(-5px); }
    50% { transform: translateX(30px) translateY(0); }
    75% { transform: translateX(15px) translateY(5px); }
}

/* Sun decoration */
.sun {
    position: fixed;
    top: 20px;
    right: 40px;
    width: 80px;
    height: 80px;
    image-rendering: pixelated;
    z-index: 0;
    animation: sun-pulse 4s ease-in-out infinite;
}
@keyframes sun-pulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.05); opacity: 1; }
}

/* Main chat panel */
.chat-panel {
    position: relative;
    z-index: 1;
    width: 720px;
    max-width: calc(100vw - 40px);
    height: calc(100vh - 80px);
    max-height: 820px;
    display: flex;
    flex-direction: column;
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    border: var(--pixel-border) solid var(--panel-border);
    box-shadow:
        calc(-1 * var(--pixel-border)) 0 0 0 var(--panel-border),
        var(--pixel-border) 0 0 0 var(--panel-border),
        0 calc(-1 * var(--pixel-border)) 0 0 var(--panel-border),
        0 var(--pixel-border) 0 0 var(--panel-border),
        0 0 40px rgba(75, 156, 214, 0.2),
        0 0 80px rgba(82, 108, 254, 0.1);
    border-radius: 4px;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 2px solid rgba(75, 156, 214, 0.3);
    background: rgba(75, 156, 214, 0.08);
}
.header-robot {
    width: 52px;
    height: 52px;
    image-rendering: pixelated;
    filter: drop-shadow(0 0 8px rgba(75, 156, 214, 0.5));
}
.header-text h1 {
    font-family: 'Jersey 10', cursive;
    font-size: 32px;
    font-weight: 400;
    color: var(--ag2-blue);
    line-height: 1;
    letter-spacing: 1px;
}
.header-text p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}
.status-dot {
    width: 8px;
    height: 8px;
    background: #f87171;
    border-radius: 0;
    margin-left: auto;
    box-shadow: 0 0 4px rgba(248, 113, 113, 0.5);
    transition: background 0.3s, box-shadow 0.3s;
}
.status-dot.running {
    background: #4ade80;
    box-shadow: 0 0 4px rgba(74, 222, 128, 0.5);
    animation: blink-status 2s ease-in-out infinite;
}
@keyframes blink-status {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Messages area */
.messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scrollbar-width: thin;
    scrollbar-color: rgba(75, 156, 214, 0.3) transparent;
}
.messages::-webkit-scrollbar { width: 6px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb { background: rgba(75, 156, 214, 0.3); border-radius: 3px; }

/* Welcome message */
.welcome {
    text-align: center;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.welcome-robot {
    width: 100px;
    height: 100px;
    image-rendering: pixelated;
    filter: drop-shadow(0 0 16px rgba(75, 156, 214, 0.4));
    animation: welcome-bob 3s ease-in-out infinite;
}
@keyframes welcome-bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.welcome h2 {
    font-family: 'Jersey 10', cursive;
    font-size: 24px;
    font-weight: 400;
    color: var(--ag2-blue);
}
.welcome p {
    color: var(--text-secondary);
    font-size: 14px;
    max-width: 400px;
}
.quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 8px;
}
.quick-action {
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    padding: 8px 14px;
    background: rgba(75, 156, 214, 0.1);
    border: 1px solid rgba(75, 156, 214, 0.3);
    color: var(--ag2-blue);
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s;
}
.quick-action:hover {
    background: rgba(75, 156, 214, 0.2);
    border-color: var(--ag2-blue);
}

/* Message bubbles */
.msg-row {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.msg-row.user {
    flex-direction: row-reverse;
}
.msg-avatar {
    width: 36px;
    height: 36px;
    image-rendering: pixelated;
    flex-shrink: 0;
    filter: drop-shadow(0 0 4px rgba(75, 156, 214, 0.3));
}
.msg-bubble {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.6;
}
.msg-row.user .msg-bubble {
    background: var(--msg-user-bg);
    color: white;
    border: 2px solid rgba(82, 108, 254, 0.5);
}
.msg-row.bot .msg-bubble {
    background: var(--msg-bot-bg);
    border: 2px solid rgba(75, 156, 214, 0.25);
}

/* Robot thinking animation */
.msg-row.bot .msg-avatar.thinking {
    animation: think-bob 1.0s ease-in-out infinite;
}
@keyframes think-bob {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-4px) scale(1.05); }
}

/* Markdown content styling */
.msg-bubble p { margin-bottom: 8px; }
.msg-bubble p:last-child { margin-bottom: 0; }
.msg-bubble code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 3px;
}
.msg-bubble pre {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(75, 156, 214, 0.2);
    border-radius: 4px;
    padding: 12px 16px;
    overflow-x: auto;
    margin: 8px 0;
}
.msg-bubble pre code {
    background: none;
    padding: 0;
    font-size: 12.5px;
    line-height: 1.5;
}
.msg-bubble ul, .msg-bubble ol {
    margin: 8px 0;
    padding-left: 20px;
}
.msg-bubble li { margin-bottom: 4px; }
.msg-bubble strong { color: var(--ag2-blue); }
.msg-bubble a { color: var(--ag2-blue); text-decoration: underline; }

/* Typing dots */
.typing-dots {
    display: inline-flex;
    gap: 4px;
    padding: 4px 0;
}
.typing-dots span {
    width: 6px;
    height: 6px;
    background: var(--ag2-blue);
    border-radius: 0;
    animation: typing-bounce 1.2s ease-in-out infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.15s; }
.typing-dots span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing-bounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* Weather card - pixel themed */
.weather-card {
    background: linear-gradient(135deg, rgba(75, 156, 214, 0.3) 0%, rgba(82, 108, 254, 0.3) 100%);
    border: 2px solid var(--ag2-blue);
    border-radius: 4px;
    padding: 16px;
    margin: 4px 0;
    max-width: 320px;
    box-shadow:
        -2px 0 0 0 var(--ag2-blue),
        2px 0 0 0 var(--ag2-blue),
        0 -2px 0 0 var(--ag2-blue),
        0 2px 0 0 var(--ag2-blue);
}
.weather-card.loading {
    opacity: 0.7;
    animation: weather-pulse 1.5s ease-in-out infinite;
}
@keyframes weather-pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 0.4; }
}
.weather-card h3 {
    font-family: 'Jersey 10', cursive;
    font-size: 22px;
    font-weight: 400;
    color: var(--ag2-blue);
    margin-bottom: 2px;
}
.weather-card .weather-subtitle {
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.weather-main {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 12px;
}
.weather-temp {
    font-family: 'Jersey 10', cursive;
    font-size: 48px;
    font-weight: 400;
    line-height: 1;
    color: var(--text-primary);
}
.weather-temp .unit {
    font-size: 24px;
    vertical-align: top;
    color: var(--ag2-blue);
}
.weather-temp-secondary {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px;
}
.weather-conditions {
    text-align: right;
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 120px;
}
.weather-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid rgba(75, 156, 214, 0.2);
}
.weather-detail {
    text-align: center;
}
.weather-detail-label {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}
.weather-detail-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--text-primary);
}

/* Input area */
.input-area {
    padding: 16px 24px;
    border-top: 2px solid rgba(75, 156, 214, 0.3);
    background: rgba(75, 156, 214, 0.05);
    display: flex;
    gap: 10px;
}
.input-area input {
    flex: 1;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(75, 156, 214, 0.2);
    border-radius: 3px;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.15s;
}
.input-area input:focus {
    border-color: var(--ag2-blue);
}
.input-area input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}
.send-btn {
    font-family: 'Jersey 10', cursive;
    font-size: 20px;
    padding: 10px 24px;
    background: var(--ag2-blue);
    color: #0d1117;
    border: 2px solid var(--ag2-blue);
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s;
    letter-spacing: 1px;
    box-shadow:
        -2px 0 0 0 var(--ag2-blue),
        2px 0 0 0 var(--ag2-blue),
        0 -2px 0 0 var(--ag2-blue),
        0 2px 0 0 var(--ag2-blue);
}
.send-btn:hover {
    background: #5cb3e8;
    border-color: #5cb3e8;
    box-shadow:
        -2px 0 0 0 #5cb3e8,
        2px 0 0 0 #5cb3e8,
        0 -2px 0 0 #5cb3e8,
        0 2px 0 0 #5cb3e8;
}
.send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Footer */
.footer {
    text-align: center;
    padding: 8px;
    font-size: 11px;
    color: rgba(160, 180, 200, 0.5);
}
.footer a {
    color: var(--ag2-blue);
    text-decoration: none;
    opacity: 0.6;
}