html {
    height: 100%;
}
body {
    background: linear-gradient(-45deg, #0a0e17, #13182c, #1a1f3a, #0f1424);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    height: 100%;
    color: #e6e9f0;
}
@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: #d0d6e3;
}
h3 {
    font-size: 1.0rem;
    color: #f0f4ff;
}
h2 {
    font-size: 1.0rem;
    color: #e8ecf5;
}
h1 {
    font-size: 0.9rem;
    color: #f5f7ff;
}
td, th {
    font-size: 0.8rem;
    color: #d0d6e3;
}
.typing-text {
    font-size: 0.8rem;
    color: #c8d0e8;
}
#balance {
    font-size: 0.7rem;
    color: #b8c2e0;
    font-style: italic;
}
strong {
    font-size: 0.8rem;
    color: #f2e5d0;
}

.form-control::placeholder {
    color: #8a94b0;
    opacity: 1;
}

.form-control::-webkit-input-placeholder { color: #8a94b0; opacity: 1; }
.form-control::-moz-placeholder { color: #8a94b0; opacity: 1; }
.form-control:-ms-input-placeholder { color: #8a94b0; opacity: 1; }
.form-control:-moz-placeholder { color: #8a94b0; opacity: 1; }

p img {
    width: 100%;
    border-radius: 1rem;
    border: 1px solid #4a5680;
    box-shadow: 1px 2px 0.8rem 0 rgba(74, 86, 128, 0.4);
}

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

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

.chat-header {
    background: linear-gradient(90deg, #1a2342 0%, #2d3a75 50%, #1a2342 100%);
    background-size: 200% 200%;
    animation: headerGlow 8s ease infinite;
    color: #f5f7ff;
    padding: 0.3rem 1.6rem;
    border-radius: 15px 15px 0 0;
    border: 1px solid #3a4780;
    box-shadow: 0 4px 15px rgba(58, 71, 128, 0.6);
    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: #0f1424;
    border-right: 1px solid #2a3158;
    border-left: 1px solid #2a3158;
}

.message {
    max-width: 80%;
    padding: 0.5rem 0.8rem 0 0.8rem;
    border-radius: 15px;
    border: 1px solid #3a4780;
    position: relative;
    word-wrap: break-word;
    opacity: 0;
    transform: translateY(10px);
    animation: messageAppear 0.4s ease-out forwards;
    box-shadow: 0 4px 15px rgba(58, 71, 128, 0.3);
    margin-bottom: 1rem;
    color: #e6e9f0;
}

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

.chat-messages::-webkit-scrollbar {
    width: 10px;
}

.chat-messages::-webkit-scrollbar-track {
    background: #0f1424;
    border-radius: 5px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #2d3a75, #4a5ab5);
    border-radius: 5px;
    border: 2px solid #0f1424;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #4a5ab5, #636fd8);
}

.chat-messages {
    scrollbar-width: thin;
    scrollbar-color: #4a5ab5 #0f1424;
}

.user-message {
    background: linear-gradient(135deg, #1a2342 0%, #252f5a 100%);
    margin-left: auto;
    border-bottom-right-radius: 0;
    box-shadow: 0 2px 20px rgba(130, 0, 0, 0.4);
    border: 1px solid #ad00b396;
}

.ai-message {
    background: linear-gradient(135deg, #151c36 0%, #1e2648 100%);
    margin-right: auto;
    border-bottom-left-radius: 0;
    box-shadow: 0 2px 20px rgba(0, 130, 0, 0.4);
    border: 1px solid #7c970083;
}

.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, 35, 60, 0.9);
    border: none;
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 3px 4px 12px 0 rgba(58, 71, 128, 0.5);
    color: #a8b4e0;
}

.copy-btn:hover {
    transform: scale(1.1);
    background: #2d3a75;
    box-shadow: 0 6px 15px rgba(99, 111, 216, 0.5);
}

.typing-indicator {
    display: flex;
    align-items: center;
    padding: 0.6rem 1.2rem;
    background: transparent;
    border: 1px solid #3a4780;
    border-radius: 15px;
    width: fit-content;
    box-shadow: 0px 0px 12px rgba(99, 111, 216, 0.4);
    transform: scale(0.7);
    opacity: 0;
    animation: typingAppear 0.8s ease-out forwards;
}

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

.typing-dot {
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, #636fd8 0%, #8a94ff 100%);
    border-radius: 50%;
    margin: 0 4px;
    box-shadow: 0 2px 6px rgba(138, 148, 255, 0.5);
    animation: typingAnimation 1.4s 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(-5px); }
}

.input-container {
    background: #0f1424;
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;
    border-left: 1px solid #2a3158;
    border-right: 1px solid #2a3158;
    border-bottom: 1px solid #2a3158;
}

.btn {
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    border-radius: 12px;
    border: 1px solid #006863;
    box-shadow: 0 4px 12px rgba(42, 49, 88, 0.5);
    color: #f5f7ff;
}

.btn-dark {
    margin-left: 0.5rem;
    background: linear-gradient(180deg, #2d3a75 0%, #252f5a 100%);
}

.btn:hover {
    transform: scale(0.95);
    box-shadow: 0 6px 15px rgba(99, 111, 216, 0.5);
}

#sendBtn {
    background: linear-gradient(180deg, #4a5ab5 0%, #3a4780 100%);
    box-shadow: none;
    border: none;
}

#sendBtn:hover {
    color: #d0d8ff;
    transform: scale(0.97);
    box-shadow: 0 6px 15px rgba(74, 90, 181, 0.6);
}

.form-control {
    border-radius: 15px;
    border: none;

    transition: all 0.3s;
    padding: 0.8rem 1rem;
    font-size: 0.8rem;
    background-color: #151c36;
    color: #e6e9f0;
    caret-color: #8a94ff;
}

.form-control:focus {
    outline: none;
    border-color: #636fd8;
    background-color: #1a2342;
    color: #f0f4ff;
    box-shadow: 0 0 0 0.20rem rgba(99, 111, 216, 0.4);
}

.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;
}