:root {
    --clr-bg: #f4f6f8;
    --clr-dots: #d0d0d0;
    --clr-ink: #111111;
    --clr-paper: #ffffff;
    --clr-accent: #7d5fff;
    --clr-accent-soft: rgba(125, 95, 255, 0.1);
    --clr-ai-msg: rgba(255, 255, 255, 0.7);
    --clr-user-msg: rgba(125, 95, 255, 0.15);
    --border-width: 4px;
    --transition: 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --font-header: 'Bangers', cursive;
    --font-body: 'Comic Neue', cursive, sans-serif;
    --shadow-offset: 8px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

body {
    min-height: 100vh;
    background-color: var(--clr-paper);
    background-image: radial-gradient(var(--clr-dots) 15%, transparent 16%), radial-gradient(var(--clr-dots) 15%, transparent 16%);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    font-family: var(--font-body);
    color: var(--clr-ink);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 900px;
    height: 90vh;
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    z-index: 2;
    transform: rotate(0.2deg);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--clr-paper);
    border: var(--border-width) solid var(--clr-ink);
    padding: 15px 25px;
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--clr-ink);
    transform: rotate(-0.5deg);
}

.title {
    font-family: var(--font-header);
    font-size: 2.5rem;
    letter-spacing: 2px;
    line-height: 1;
}

.subtitle {
    font-weight: 700;
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 5px;
}

.header-actions {
    display: flex;
    gap: 12px;
}

#new-chat-btn.hidden {
    display: none;
}

.header-btn {
    background: var(--clr-paper);
    border: 3px solid var(--clr-ink);
    padding: 8px 15px;
    font-family: var(--font-header);
    font-size: 1.1rem;
    color: var(--clr-ink);
    text-decoration: none;
    box-shadow: 4px 4px 0 var(--clr-ink);
    transition: all 0.2s;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.hub-link {
    background: var(--clr-accent);
    color: white;
}

.header-btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--clr-ink);
    background: var(--clr-ink);
    color: white;
}

.hub-link:hover {
    color: var(--clr-accent);
}

.pow-effect {
    position: absolute;
    pointer-events: none;
    font-family: var(--font-header);
    font-size: 2rem;
    color: var(--clr-accent);
    text-shadow: 3px 3px 0 var(--clr-ink);
    z-index: 100;
    animation: powAnim 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes powAnim {
    0% {
        transform: scale(0) rotate(-20deg);
        opacity: 0;
    }

    50% {
        transform: scale(1.5) rotate(10deg);
        opacity: 1;
    }

    100% {
        transform: scale(1.2) rotate(0deg);
        opacity: 0;
        transform: translateY(-50px);
    }
}

.chat-wrapper {
    flex: 1;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: var(--border-width) solid var(--clr-ink);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--clr-ink);
}

.chat-messages {
    flex: 1;
    padding: 25px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--clr-accent) transparent;
}

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

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--clr-accent);
    border: 2px solid var(--clr-ink);
}

.message {
    max-width: 85%;
    display: flex;
    flex-direction: column;
    animation: msgPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes msgPop {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }

    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.user-msg {
    align-self: flex-end;
}

.msg-text {
    flex: 1;
    font-weight: 600;
    line-height: 1.5;
    min-width: 0;
}

.ai-msg {
    align-self: flex-start;
    max-width: 95%;
}

.msg-bubble {
    padding: 15px 20px;
    border: 3px solid var(--clr-ink);
    position: relative;
    display: flex;
    gap: 15px;
    align-items: flex-start;
    width: 100%;
}

.user-msg .msg-bubble {
    background: var(--clr-user-msg);
    box-shadow: 6px 6px 0 var(--clr-ink);
    border-radius: 20px 20px 0 20px;
    flex-direction: row-reverse;
}

.ai-msg .msg-bubble {
    background: var(--clr-ai-msg);
    box-shadow: -6px 6px 0 var(--clr-ink);
    border-radius: 20px 20px 20px 0;
}

.msg-avatar {
    width: 45px;
    height: 45px;
    background: var(--clr-paper);
    border: 2px solid var(--clr-ink);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 2px 2px 0 var(--clr-ink);
    flex-shrink: 0;
    overflow: hidden;
}

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

.chat-input-area {
    padding: 25px 30px;
    background: var(--clr-bg);
    border-top: var(--border-width) solid var(--clr-ink);
    position: relative;
}

.input-group {
    display: flex;
    gap: 15px;
    align-items: center;
    background: var(--clr-paper);
    border: 4px solid var(--clr-ink);
    padding: 12px 20px;
    box-shadow: 8px 8px 0 var(--clr-ink);
    transition: transform 0.2s;
}

.input-group:focus-within {
    transform: translate(-2px, -2px);
    box-shadow: 10px 10px 0 var(--clr-accent);
}

textarea {
    flex: 1;
    background: transparent;
    border: none;
    resize: none;
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--clr-ink);
    padding: 5px 0;
    max-height: 150px;
    line-height: 1.4;
    overflow-y: hidden;
}

textarea::placeholder {
    color: #999;
    font-weight: 400;
}

.send-btn {
    background: var(--clr-accent);
    border: 3px solid var(--clr-ink);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    box-shadow: 3px 3px 0 var(--clr-ink);
}

.send-btn:disabled {
    background: #eee;
    color: #999;
    border-color: #ccc;
    box-shadow: none;
    cursor: not-allowed;
    transform: none !important;
}

.send-btn:hover:not(:disabled) {
    transform: scale(1.1);
    box-shadow: 5px 5px 0 var(--clr-ink);
    background: var(--clr-ink);
    color: var(--clr-accent);
}

.send-btn svg {
    width: 24px;
    height: 24px;
}

.footer {
    text-align: center;
    background: white;
    border: 3px solid var(--clr-ink);
    padding: 8px 20px;
    align-self: center;
    box-shadow: 4px 4px 0 var(--clr-ink);
    transform: rotate(0.5deg);
    font-family: var(--font-header);
    font-size: 1.1rem;
    letter-spacing: 1px;
}

#page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--clr-paper);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease, visibility 0.3s;
}

#page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 6px solid var(--clr-ink);
    border-top-color: var(--clr-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    box-shadow: 4px 4px 0 var(--clr-ink);
    margin-bottom: 20px;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

.loader-text {
    font-family: var(--font-header);
    font-size: 2rem;
    letter-spacing: 2px;
}

.msg-text h1, .msg-text h2, .msg-text h3 {
    font-family: var(--font-header);
    margin: 15px 0 10px;
    letter-spacing: 1px;
    -webkit-text-stroke: 1px var(--clr-ink);
}

.msg-text ul, .msg-text ol {
    margin-left: 20px;
    margin-bottom: 10px;
}

.msg-text li {
    margin-bottom: 5px;
}

.msg-text blockquote {
    border-left: 5px solid var(--clr-accent);
    padding: 10px 15px;
    background: var(--clr-bg);
    margin: 10px 0;
    font-style: italic;
}

.msg-text table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    font-size: 0.9rem;
    background: #fff;
    border: 3px solid var(--clr-ink);
    box-shadow: 4px 4px 0 var(--clr-ink);
}

.msg-text th, .msg-text td {
    border: 2px solid var(--clr-ink);
    padding: 10px;
    text-align: left;
}

.msg-text th {
    background: var(--clr-accent);
    color: white;
    font-family: var(--font-header);
    text-transform: uppercase;
}

.msg-text pre {
    background: #2d2d2d !important;
    border: 3px solid var(--clr-ink) !important;
    padding: 20px 15px !important;
    margin: 15px 0 !important;
    border-radius: 0 !important;
    box-shadow: 4px 4px 0 var(--clr-ink) !important; 
    overflow-x: auto;
    width: 100%;
}

.msg-text pre code {
    background: transparent !important;
    padding: 0 !important;
    border: none !important;
    color: #ccc !important;
    font-size: 0.95rem !important;
}

.copy-code-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: var(--clr-accent);
    color: white;
    border: 2px solid var(--clr-ink);
    padding: 2px 8px;
    font-size: 0.7rem;
    font-family: var(--font-header);
    cursor: pointer;
    box-shadow: 2px 2px 0 var(--clr-ink);
    z-index: 10;
}

.copy-code-btn:hover {
    transform: translate(-1px, -1px);
    box-shadow: 3px 3px 0 var(--clr-ink);
}

@media (max-width: 600px) {
    .container {
        height: 95vh;
        padding: 10px;
    }

    .title {
        font-size: 2rem;
    }

    .hub-btn {
        padding: 5px 10px;
        font-size: 1rem;
    }

    .msg-bubble {
        padding: 10px 15px;
    }

    .msg-avatar {
        width: 30px;
        height: 30px;
        font-size: 1.1rem;
    }
}

.typing {
    font-style: italic;
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 5px;
}

.typing span {
    animation: blink 1.4s infinite both;
}

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

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

.msg-text p {
    margin-bottom: 10px;
}

.msg-text p:last-child {
    margin-bottom: 0;
}

.msg-text code {
    background: var(--clr-accent-soft);
    padding: 2px 5px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
    border: 1px solid var(--clr-accent);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(125, 95, 255, 0.2);
    backdrop-filter: blur(8px);
    z-index: 20000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--clr-paper);
    border: 4px solid var(--clr-ink);
    padding: 30px;
    max-width: 450px;
    width: 90%;
    box-shadow: 15px 15px 0 var(--clr-ink);
    text-align: center;
    --animate-duration: 0.3s; 
}

.modal-title {
    font-family: var(--font-header);
    font-size: 2.5rem;
    color: var(--clr-accent);
    margin-bottom: 15px;
    -webkit-text-stroke: 1px var(--clr-ink);
}

.modal-text {
    font-weight: 700;
    margin-bottom: 25px;
}

.modal-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.modal-btn {
    padding: 10px 25px;
    font-family: var(--font-header);
    font-size: 1.2rem;
    border: 3px solid var(--clr-ink);
    cursor: pointer;
    box-shadow: 4px 4px 0 var(--clr-ink);
    transition: all 0.2s;
}

.confirm-btn {
    background: var(--clr-accent);
    color: white;
}

.cancel-btn {
    background: #fff;
    color: var(--clr-ink);
}

.modal-btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--clr-ink);
}

.modal-overlay.hidden {
    display: none;
}

@keyframes blink {
    0% {
        opacity: 0.2;
    }

    20% {
        opacity: 1;
    }

    100% {
        opacity: 0.2;
    }
}