html {
    height: 100%;
}
body {
    background: linear-gradient(-45deg, #0a0f1a, #0d1424, #0f1729, #0a0f1a);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    height: 100%;
    color: #e3e8f2;
}
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.chat-header img {
    height: 52px;
    width: auto;
    object-fit: cover;
}
p, li, pre {
    font-size: 0.8rem;
    color: #d1d9f0;
}
h3 {
    font-size: 1.0rem;
    color: #f0f4ff;
}
h2 {
    font-size: 1.0rem;
    color: #e8edf7;
}
h1 {
    font-size: 0.9rem;
    color: #f5f8ff;
}
td, th {
    font-size: 0.8rem;
    color: #d1d9f0;
}
.typing-text {
    font-size: 0.8rem;
    color: #c8d2f0;
}
#balance {
    font-size: 0.7rem;
    color: #b8c5e8;
    font-style: italic;
}
strong {
    font-size: 0.8rem;
    color: #f2e5d0;
}

.form-control::placeholder {
    color: #7a88b0;
    opacity: 1;
}

.form-control::-webkit-input-placeholder { color: #7a88b0; opacity: 1; }
.form-control::-moz-placeholder { color: #7a88b0; opacity: 1; }
.form-control:-ms-input-placeholder { color: #7a88b0; opacity: 1; }
.form-control:-moz-placeholder { color: #7a88b0; opacity: 1; }

p img {
    width: 60%;
    border-radius: 1rem;
    border: 1px solid #3a4a80;
    box-shadow: 1px 2px 0.8rem 0 rgba(58, 74, 128, 0.3);
}

p:has(img) {
    text-align: center;
}

.chat-container {
    max-width: 800px;
    height: 100%;
    box-sizing: border-box;
}

.chat-header {
    background: linear-gradient(90deg, #1a243f 0%, #2a3868 50%, #1a243f 100%);
    background-size: 200% 200%;
    animation: headerGlow 8s ease infinite;
    color: #f5f8ff;
    padding: 0.3rem 1.6rem;
    border-radius: 15px 15px 0 0;
    border: 1px solid #3a4a80;
    box-shadow: 0 4px 15px rgba(42, 56, 104, 0.4);
    position: relative;
    overflow: hidden;
}
@keyframes headerGlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* .chat-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(90, 111, 208, 0.1), transparent);
    animation: shimmer 8s ease-in-out infinite;
}
@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
} */

.chat-messages {
    height: calc(50vh);
    overflow-y: auto;
    background-color: #0d1424;
    border-right: 1px solid #2a3458;
    border-left: 1px solid #2a3458;
}

.message {
    max-width: 80%;
    padding: 0.5rem 0.8rem 0 0.8rem;
    border-radius: 15px;
    border: 1px solid #3a4a80;
    position: relative;
    word-wrap: break-word;
    opacity: 0;
    transform: translateY(10px);
    animation: messageAppear 0.4s ease-out forwards;
    box-shadow: 0 4px 12px rgba(42, 56, 104, 0.25);
    margin-bottom: 1rem;
    color: #e3e8f2;
    backdrop-filter: blur(5px);
}

@keyframes messageAppear {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: #0d1424;
    border-radius: 5px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #3a4a80, #5a6fd0);
    border-radius: 5px;
    border: 2px solid #0d1424;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #5a6fd0, #6a7fe8);
}

.chat-messages {
    scrollbar-width: thin;
    scrollbar-color: #5a6fd0 #0d1424;
}

.user-message {
    background: linear-gradient(135deg, #1a243f 0%, #222e55 100%);
    margin-left: auto;
    border-bottom-right-radius: 0;
    box-shadow: 0 4px 15px rgba(90, 111, 208, 0.3);
    border: 1px solid #4a5a90;
}

.ai-message {
    background: linear-gradient(135deg, #151d36 0%, #1c2645 100%);
    margin-right: auto;
    border-bottom-left-radius: 0;
    box-shadow: 0 4px 15px rgba(58, 74, 128, 0.3);
    border: 1px solid #3a4a80;
}

.message:hover .copy-btn {
    opacity: 1;
}

.copy-btn {
    position: absolute;
    right: 5px;
    bottom: 5px;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    background: rgba(30, 40, 65, 0.8);
    border: none;
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 2px 3px 8px 0 rgba(58, 74, 128, 0.4);
    color: #a8b8e8;
}

.copy-btn:hover {
    transform: scale(1.1);
    background: #3a4a80;
    box-shadow: 0 4px 12px rgba(90, 111, 208, 0.4);
}

.typing-indicator {
    display: flex;
    align-items: center;
    padding: 0.6rem 1.2rem;
    background: rgba(26, 36, 63, 0.6);
    border: 1px solid #3a4a80;
    border-radius: 15px;
    width: fit-content;
    box-shadow: 0px 0px 10px rgba(90, 111, 208, 0.3);
    transform: scale(0.7);
    opacity: 0;
    animation: typingAppear 0.8s ease-out forwards;
    backdrop-filter: blur(5px);
}

@keyframes typingAppear {
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, #5a6fd0 0%, #7a8fff 100%);
    border-radius: 50%;
    margin: 0 3px;
    box-shadow: 0 2px 4px rgba(122, 143, 255, 0.4);
    animation: typingAnimation 1.6s infinite ease-in-out;
}

.typing-dot:nth-child(1) {
    animation-delay: 0s;
}
.typing-dot:nth-child(2) {
    animation-delay: 0.3s;
}
.typing-dot:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes typingAnimation {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-3px); }
}

.input-container {
    background: #0d1424;
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;
    border-left: 1px solid #2a3458;
    border-right: 1px solid #2a3458;
    border-bottom: 1px solid #2a3458;
}

.btn {
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    border-radius: 12px;
    border: 1px solid #2a3458;
    box-shadow: 0 3px 8px rgba(42, 52, 88, 0.3);
    color: #f5f8ff;
}

.btn-dark {
    margin-left: 0.5rem;
    background: linear-gradient(180deg, #3a4a80 0%, #2a3868 100%);
}

.btn:hover {
    transform: scale(0.95);
    box-shadow: 0 4px 12px rgba(90, 111, 208, 0.4);
}

#sendBtn {
    background: linear-gradient(180deg, #5a6fd0 0%, #4a5a90 100%);
    box-shadow: none;
    border: none;
}

#sendBtn:hover {
    color: #e0e8ff;
    transform: scale(0.97);
    box-shadow: 0 4px 12px rgba(90, 111, 208, 0.5);
}

.form-control {
    border-radius: 15px;
    border: none;
    border-top: 1px solid #3a4a80;
    transition: all 0.3s;
    padding: 0.8rem 1rem;
    font-size: 0.8rem;
    background-color: #151d36;
    color: #e3e8f2;
    caret-color: #7a8fff;
}

.form-control:focus {
    outline: none;
    border-color: #5a6fd0;
    background-color: #1a243f;
    color: #f0f4ff;
    box-shadow: 0 0 0 0.15rem rgba(90, 111, 208, 0.3);
}

.message::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 15px;
    background: linear-gradient(135deg, rgba(90, 111, 208, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.message:hover::after {
    opacity: 1;
}