/* ===== DOCUMENT ===== */

html {
    height: 100%;
}

body {
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--app-bg-top) 82%, black 18%) 0%,
        color-mix(in srgb, var(--app-bg) 72%, black 28%) 100%
    );
    font-family: var(--app-font-family);
    color: var(--app-text-soft);
    overscroll-behavior: contain;
}

/* ===== CHAT ===== */

.chat {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 15px 20px;
    font-size: 14px;
    scrollbar-width: thin;
    scrollbar-color: var(--chat-scrollbar) transparent;
    background: transparent;
}

.chat::-webkit-scrollbar {
    width: 6px;
}

.chat::-webkit-scrollbar-thumb {
    background: var(--chat-scrollbar);
    border-radius: 4px;
}

/* ===== MESSAGE ===== */

.message {
    display: flex;
    flex-direction: column;
    margin-top: 0;
}

.message.break {
    margin-top: 8px;
}

.message-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 0;
}

.message-author {
    font-weight: 700;
    font-size: 15px;
}

.user-author {
    color: var(--chat-user-author);
}

.bot-author {
    color: var(--chat-bot-author);
}

.message-datetime {
    font-size: 12px;
    color: var(--chat-datetime);
}

.message-text {
    margin-left: 18px;
    font-size: 14px;
    line-height: 1.2;
    color: var(--chat-text);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.message-text-html {
    white-space: normal;
    overflow-wrap: normal;
}

.message-text-code {
    white-space: normal;
    overflow: visible;
}

.message-text-plain,
.message-text-rich {
    max-height: calc(1.2em * 10 + 0.8em);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    box-sizing: border-box;
    scrollbar-width: thin;
}

.message-text-plain.has-scroll,
.message-text-rich.has-scroll {
    padding: 8px 12px;
    border-radius: 10px;
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--app-surface) 96%, white 4%) 0%,
        color-mix(in srgb, var(--app-surface) 90%, black 10%) 100%
    );
    border: 1px solid color-mix(in srgb, var(--app-border) 76%, var(--app-primary) 24%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.03),
        0 4px 14px rgba(0, 0, 0, 0.12);
}

.message-text-html .code-box,
.message-text-code .code-box {
    margin-top: 0;
}

/* ===== FORM ===== */

form {
    padding: 0;
    background: transparent;
    border: none;
    position: relative;
    overflow: visible;
    z-index: 20;
}

.input-wrap {
    position: relative;
    width: 100%;
    min-width: 0;
}

form textarea {
    display: block;
    width: 100%;
    min-width: 0;
    min-height: 40px;
    max-height: calc(1.2em * 6 + 18px);
    padding: 8px 90px 8px 10px;
    border: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
    border-radius: 0;
    outline: none;
    resize: none;
    overflow-x: hidden;
    overflow-y: hidden;
    box-sizing: border-box;
    background: color-mix(in srgb, var(--app-bg) 96%, var(--app-bg-top) 4%);
    color: var(--input-text);
    font-size: 15px;
    line-height: 1.2;
    font-family: inherit;
    scrollbar-width: thin;
    scrollbar-color: var(--chat-scrollbar) transparent;
    box-shadow: none;
}

form textarea::-webkit-scrollbar {
    width: 6px;
}

form textarea::-webkit-scrollbar-thumb {
    background: var(--chat-scrollbar);
    border-radius: 4px;
}

form textarea::placeholder {
    color: var(--input-placeholder);
}

form textarea:focus {
    border-color: var(--input-focus-border);
    box-shadow:
        0 0 0 2px var(--input-focus-ring),
        0 8px 24px rgba(0, 0, 0, 0.18);
}

form button {
    position: absolute;
    right: 12px;
    bottom: 6px;
    min-height: 28px;
    height: 28px;
    padding: 0 12px;
    background: var(--button-bg);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    color: var(--button-text);
    font-weight: 600;
    transition: background 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
    z-index: 3;
}

form button:active {
    transform: translateY(1px);
}

/* ===== CODE BOX ===== */

.code-box {
    width: 100%;
    max-width: 100%;
    margin-top: 8px;
    border: 1px solid var(--code-border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--code-bg);
}

.code-box-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 9px;
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--app-primary) 22%, var(--code-header-bg) 78%) 0%,
        color-mix(in srgb, var(--app-primary) 10%, var(--code-header-bg) 90%) 100%
    );
    border-bottom: 1px solid color-mix(in srgb, var(--app-primary) 24%, var(--code-border) 76%);
}

.code-lang {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--code-label);
    text-transform: uppercase;
}

.code-lang::before {
    content: "</>";
    margin-right: 6px;
    opacity: 0.78;
    font-weight: 500;
    letter-spacing: 0;
    color: color-mix(in srgb, var(--code-label) 88%, white 12%);
}

.copy-code-btn {
    appearance: none;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.04);
    color: var(--code-button-text);
    border-radius: 7px;
    padding: 4px 9px;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
}

.copy-code-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.14);
}

.copy-code-btn:active {
    transform: translateY(1px);
}

.copy-code-btn:disabled {
    opacity: 0.75;
    cursor: default;
}

.code-box code {
    font-family: Consolas, Monaco, "Courier New", monospace;
    color: inherit;
}

.code-box pre {
    margin: 0;
    padding: 0;
    overflow-x: auto;
    overflow-y: auto;
    max-height: calc(1.45em * 10 + 1.4em);
    font-size: 13px;
    line-height: 1.45;
    background: transparent;
    color: var(--code-text);
    scrollbar-width: thin;
    scrollbar-color: var(--chat-scrollbar) transparent;
}

.code-box pre,
.code-box code,
.code-box pre code.hljs,
.hljs {
    background: transparent !important;
}

.code-box pre,
.code-box pre code,
.code-box pre code.hljs,
.code-box pre code.hljs * {
    white-space: pre !important;
    word-break: normal !important;
    overflow-wrap: normal !important;
}

.code-box pre code.hljs {
    display: block;
    padding: 0.7em !important;
}

.code-box pre::-webkit-scrollbar,
form textarea::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.code-box pre::-webkit-scrollbar-thumb,
form textarea::-webkit-scrollbar-thumb {
    background: var(--chat-scrollbar);
    border-radius: 4px;
}

.code-box pre.has-scroll {
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--code-border) 84%, var(--app-primary) 16%);
}

/* ===== MESSAGE SCROLLBAR ===== */

.message-text-plain::-webkit-scrollbar,
.message-text-rich::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

.message-text-plain::-webkit-scrollbar-thumb,
.message-text-rich::-webkit-scrollbar-thumb {
    background: var(--chat-scrollbar);
    border-radius: 999px;
}

/* ===== MOBILE ===== */

@media (max-width: 600px) {
    .chat {
        padding: 10px 12px;
        font-size: 13px;
    }

    .message-author {
        font-size: 14px;
    }

    .message-datetime {
        font-size: 11px;
    }

    .message-text {
        font-size: 13px;
    }

    form {
        padding: 6px 8px;
    }

    .input-wrap {
        width: 100%;
    }

    form {
        padding: 0;
    }

    form textarea {
        min-height: 38px;
        max-height: calc(1.2em * 6 + 18px);
        padding: 8px 78px 8px 10px;
        font-size: 15px;
        line-height: 1.2;
        border-radius: 0;
    }

    form button {
        right: 5px;
        bottom: 5px;
        min-height: 28px;
        height: 28px;
        padding: 0 10px;
        border-radius: 8px;
    }

    .code-box {
        margin-top: 5px;
        border-radius: 9px;
    }

    .code-box-header {
        gap: 6px;
        padding: 5px 8px;
    }

    .code-lang {
        font-size: 10px;
    }

    .copy-code-btn {
        padding: 4px 7px;
        font-size: 10px;
    }

    .code-box pre {
        max-height: calc(1.4em * 10 + 1.2em);
        font-size: 12px;
        line-height: 1.4;
    }

    .code-box pre code.hljs {
        padding: 0.6em !important;
    }
}

/* ===== DESKTOP ===== */

@media (min-width: 1024px) {
    .chat {
        max-width: 900px;
        width: 100%;
        margin: 14px auto 0;
        padding: 6px 20px 6px;
        border: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
        border-bottom: none;
        border-radius: 20px 20px 0 0;
        background: transparent;
        box-shadow:
            0 20px 48px rgba(0, 0, 0, 0.18),
            0 0 0 1px rgba(255, 255, 255, 0.012) inset;
        box-sizing: border-box;
    }

    form {
        max-width: 900px;
        width: 100%;
        margin: 0 auto;
        padding: 0;
        border-left: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
        border-right: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
        border-top: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
        border-bottom: none;
        background: transparent;
        box-sizing: border-box;
    }

    .input-wrap {
        width: 100%;
    }

    form textarea {
        min-height: 40px;
        max-height: calc(1.2em * 6 + 14px);
        padding: 8px 86px 8px 10px;
        font-size: 14px;
        border: none;
        border-radius: 0;
        background: color-mix(in srgb, var(--app-bg) 96%, var(--app-bg-top) 4%);
    }

    form button {
        right: 12px;
        bottom: 6px;
        min-height: 28px;
        height: 28px;
        padding: 0 12px;
        border-radius: 8px;
    }

    .footer {
        max-width: 900px;
        width: 100%;
        margin: 0 auto 6px;
        padding: 4px 10px;
        border-left: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
        border-right: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
        border-top: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
        border-bottom: 1px solid color-mix(in srgb, var(--app-border) 82%, white 6%);
        border-radius: 0 0 20px 20px;
        background: var(--footer-bg);
        box-shadow:
            0 14px 30px rgba(0, 0, 0, 0.14),
            0 0 0 1px rgba(255, 255, 255, 0.012) inset;
        box-sizing: border-box;
    }

    .message.break {
        margin-top: 16px;
    }

    .message-header {
        margin-bottom: 3px;
    }

    .message-text {
        line-height: 1.42;
    }
}

/* ===== AVISO CENTRADO ===== */

.app-notice {
    position: fixed;
    inset: 0;
    display: grid;
    place-items: center;
    opacity: 0;
    pointer-events: none;
    z-index: 9999;
    transition: opacity 0.18s ease;
}

.app-notice::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.16);
    backdrop-filter: blur(2px);
    opacity: 0;
    transition: opacity 0.18s ease;
}

.app-notice.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.app-notice.is-visible::before {
    opacity: 1;
}

.app-notice-body {
    position: relative;
    width: min(92vw, 420px);
    padding: 14px 16px;
    border: 1px solid color-mix(in srgb, var(--app-primary) 28%, var(--app-border) 72%);
    border-radius: 16px;
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--app-surface) 96%, white 4%) 0%,
        color-mix(in srgb, var(--app-surface) 90%, black 10%) 100%
    );
    color: var(--app-text);
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    box-shadow:
        0 18px 40px rgba(0, 0, 0, 0.28),
        0 0 0 1px rgba(255, 255, 255, 0.018) inset;
    transform: translateY(8px) scale(0.98);
    transition: transform 0.18s ease;
}

.app-notice.is-visible .app-notice-body {
    transform: translateY(0) scale(1);
}

/* ===== TEXTO / CÓDIGO ESCRITO NO CHAT ===== */

.chat-inline-text {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

/* ===== ESCONDER SCROLLBARS NO MOBILE ===== */

@media (max-width: 600px) {
    .chat,
    .message-text-plain,
    .message-text-rich,
    .code-box pre,
    form textarea {
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
    }

    .chat::-webkit-scrollbar,
    .message-text-plain::-webkit-scrollbar,
    .message-text-rich::-webkit-scrollbar,
    .code-box pre::-webkit-scrollbar,
    form textarea::-webkit-scrollbar {
        width: 0 !important;
        height: 0 !important;
        display: none !important;
        background: transparent !important;
    }

    .chat::-webkit-scrollbar-thumb,
    .message-text-plain::-webkit-scrollbar-thumb,
    .message-text-rich::-webkit-scrollbar-thumb,
    .code-box pre::-webkit-scrollbar-thumb,
    form textarea::-webkit-scrollbar-thumb {
        background: transparent !important;
        border: none !important;
    }

    .chat::-webkit-scrollbar-track,
    .message-text-plain::-webkit-scrollbar-track,
    .message-text-rich::-webkit-scrollbar-track,
    .code-box pre::-webkit-scrollbar-track,
    form textarea::-webkit-scrollbar-track {
        background: transparent !important;
    }
}