:root {
    --ai-primary: #0066ff;
    --ai-secondary: #0052cc;
    --ai-bg: #F8FAFF;
    --ai-glass: #ffffff;
    --ai-border: #eee;
}

body, .app-container {
    background: var(--ai-bg) !important;
    color: #1A1D1E;
    overflow: hidden;
    min-height: 100vh;
}

/* Addictive Background Orb */
.bg-orb {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.2) 0%, transparent 70%);
    filter: blur(80px);
    z-index: -1;
    animation: floatOrb 10s infinite alternate ease-in-out;
}

@keyframes floatOrb {
    0% { transform: translate(-50%, -50%) scale(1); }
    100% { transform: translate(-40%, -60%) scale(1.2); }
}

.ai-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: calc(env(safe-area-inset-top, 25px) + 20px) 20px 20px;
    background: white;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    border-bottom: 1px solid var(--ai-border);
    position: sticky;
    top: 0;
    z-index: 100;
    min-height: calc(env(safe-area-inset-top, 20px) + 75px);
}

.back-btn {
    background: #f8fafc;
    border: 1px solid #eee;
    color: #111;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.back-btn:active {
    background: #f0f0f0;
    transform: scale(0.9);
}

.ai-title {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    justify-content: center;
    margin-right: 40px; /* Offset to center title relative to container not back button */
}

.ai-icon-small {
    width: 48px;
    height: 48px;
    background: transparent;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.ai-title > div:last-child {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.ai-title h1 {
    font-size: 1.1rem;
    font-weight: 800;
    margin: 0;
    line-height: 1.2;
    color: #1A1D1E !important;
    -webkit-text-fill-color: initial !important;
}

.online-status {
    font-size: 0.75rem;
    color: #666 !important;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    line-height: 1;
    margin-top: 2px;
}

.online-status::before {
    content: '';
    width: 6px;
    height: 6px;
    background: #4ade80;
    border-radius: 50%;
    box-shadow: 0 0 8px #4ade80;
}

.chat-container {
    padding: 20px 20px 240px;
    height: calc(100vh - env(safe-area-inset-top, 0px));
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 25px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.chat-container::-webkit-scrollbar {
    display: none;
}

.message {
    display: flex;
    gap: 12px;
    max-width: 85%;
    animation: slideUp 0.4s ease-out forwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.ai-message {
    align-self: flex-start;
}

.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.ai-message .text {
    background: var(--ai-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.2);
    border: none;
    font-weight: 500;
}

.user-message .text {
    background: #f0f0f0;
    color: #1A1D1E;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.avatar {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    flex-shrink: 0;
    border-radius: 50%;
    background: white;
    border: 1px solid #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.message .text {
    padding: 14px 18px;
    border-radius: 22px;
    font-size: 0.95rem;
    line-height: 1.5;
    backdrop-filter: blur(10px);
}

.message .text p { margin-bottom: 10px; }
.message .text p:last-child { margin-bottom: 0; }
.message .text ul, .message .text ol { margin-left: 15px; margin-bottom: 10px; }
.message .text li { margin-bottom: 5px; }
.message .text strong { font-weight: 800; }

.ai-header h1 {
    color: #1A1D1E !important;
    font-size: 1.2rem;
    font-weight: 800;
}

.online-status {
    color: #666 !important;
    font-size: 0.8rem;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.input-area {
    position: fixed;
    bottom: calc(75px + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 430px;
    background: white;
    padding: 15px 20px;
    border-top: 1px solid #eee;
    z-index: 101;
}

.suggestions {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 20px;
    scrollbar-width: none;
}

.suggestion {
    padding: 10px 20px;
    background: white;
    border: 1px solid #eee;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #666;
    white-space: nowrap;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.suggestion:hover {
    background: #f0f7ff;
    color: var(--ai-primary);
    border-color: var(--ai-primary);
}

.input-wrapper {
    display: flex;
    gap: 12px;
    background: #f8fafc;
    border: 1px solid #eee;
    padding: 8px 8px 8px 22px;
    border-radius: 30px;
    align-items: center;
    transition: border-color 0.3s ease;
}

.input-wrapper:focus-within {
    border-color: var(--ai-primary);
    box-shadow: 0 0 15px rgba(0, 102, 255, 0.05);
}

.input-wrapper input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1rem;
    color: #1A1D1E;
    outline: none;
}

.send-btn {
    width: 42px;
    height: 42px;
    background: var(--ai-primary);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
}

.send-btn:hover {
    background: var(--ai-secondary);
    transform: scale(1.05);
}

.send-btn:active {
    transform: scale(0.95);
}

.send-btn svg, .send-btn i {
    width: 20px;
    height: 20px;
}

.bottom-nav {
    background: white !important;
    border-top: 1px solid #eee !important;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.05) !important;
}

.nav-item {
    color: #666 !important;
}

.nav-item.active {
    color: var(--ai-primary) !important;
}

.nav-item.active span {
    color: var(--ai-primary) !important;
}

.nav-item span {
    color: #666 !important;
}

.typing-indicator {
    display: flex;
    gap: 5px;
    padding: 10px;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--ai-primary);
    border-radius: 50%;
    animation: typingBounce 1s infinite alternate;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    from { transform: translateY(0); opacity: 0.4; }
    to { transform: translateY(-5px); opacity: 1; }
}