/* =========================================================
   c4dynamics Chat
   ========================================================= */

#c4d-chat-button {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 9999;

    display: flex;
    align-items: center;
    gap: 8px;

    padding: 12px 17px;

    border: 1px solid rgba(31, 111, 235, 0.25);
    border-radius: 24px;

    background: #1f6feb;
    color: #ffffff;

    font-family: inherit;
    font-size: 14px;
    font-weight: 600;

    cursor: pointer;

    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.18),
        0 1px 3px rgba(0, 0, 0, 0.12);

    transition:
        transform 0.15s ease,
        box-shadow 0.15s ease,
        background 0.15s ease;
}

#c4d-chat-button:hover {
    background: #185abc;
    transform: translateY(-1px);

    box-shadow:
        0 7px 18px rgba(0, 0, 0, 0.22),
        0 2px 4px rgba(0, 0, 0, 0.12);
}

.c4d-button-icon {
    font-size: 16px;
}

/* =========================================================
   Window
   ========================================================= */

#c4d-chat-widget {
    position: fixed;
    right: 24px;
    bottom: 82px;
    z-index: 9999;

    width: 410px;
    max-width: calc(100vw - 32px);

    height: 600px;
    max-height: calc(100vh - 120px);

    display: none;
    flex-direction: column;

    background: #ffffff;
    color: #1f2328;

    border: 1px solid #d0d7de;
    border-radius: 16px;

    overflow: hidden;

    box-shadow:
        0 16px 45px rgba(0, 0, 0, 0.22),
        0 4px 12px rgba(0, 0, 0, 0.10);
}

#c4d-chat-widget.open {
    display: flex;
}

/* =========================================================
   Header
   ========================================================= */

.c4d-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 14px 16px;

    background: #1f6feb;
    color: #ffffff;
}

.c4d-chat-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.c4d-chat-logo {
    width: 34px;
    height: 34px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 9px;

    background: rgba(255, 255, 255, 0.18);

    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.c4d-chat-title-main {
    font-size: 15px;
    font-weight: 700;
}

.c4d-chat-title-sub {
    margin-top: 1px;

    font-size: 11px;
    opacity: 0.78;
}

.c4d-chat-close {
    width: 32px;
    height: 32px;

    border: none;
    border-radius: 7px;

    background: transparent;
    color: #ffffff;

    font-size: 25px;
    line-height: 1;

    cursor: pointer;
}

.c4d-chat-close:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* =========================================================
   Messages
   ========================================================= */

#c4d-chat-messages {
    flex: 1;

    padding: 18px 16px;

    overflow-y: auto;

    background: #f6f8fa;

    scroll-behavior: smooth;
}

.c4d-message {
    max-width: 88%;
    margin-bottom: 16px;
}

.c4d-user {
    margin-left: auto;
}

.c4d-assistant {
    margin-right: auto;
}

.c4d-message-label {
    margin-bottom: 5px;

    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.02em;

    color: #57606a;
}

.c4d-user .c4d-message-label {
    text-align: right;
}

.c4d-message-content {
    padding: 11px 13px;

    border-radius: 12px;

    font-size: 14px;
    line-height: 1.55;

    overflow-wrap: break-word;
}

.c4d-assistant .c4d-message-content {
    background: #ffffff;
    color: #24292f;

    border: 1px solid #d8dee4;

    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.c4d-user .c4d-message-content {
    background: #1f6feb;
    color: #ffffff;
}

/* =========================================================
   Suggestion chips
   ========================================================= */

.c4d-chat-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;

    margin: 0 0 4px;
}

.c4d-suggestion-chip {
    padding: 7px 12px;

    border: 1px solid #d0d7de;
    border-radius: 999px;

    background: #ffffff;
    color: #1f6feb;

    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;

    cursor: pointer;

    transition:
        background 0.15s ease,
        border-color 0.15s ease;
}

.c4d-suggestion-chip:hover {
    background: #eff6ff;
    border-color: #1f6feb;
}

/* =========================================================
   Markdown
   ========================================================= */

.c4d-message-content p {
    margin: 0 0 10px;
}

.c4d-message-content p:last-child {
    margin-bottom: 0;
}

.c4d-message-content ul,
.c4d-message-content ol {
    margin: 8px 0 10px;
    padding-left: 20px;
}

.c4d-message-content li {
    margin: 4px 0;
}

.c4d-message-content strong {
    font-weight: 700;
}

.c4d-message-content a {
    color: #0969da;
    text-decoration: underline;
}

.c4d-md-h2,
.c4d-md-h3,
.c4d-md-h4 {
    margin: 4px 0 10px;

    color: #1f2328;

    line-height: 1.25;
}

.c4d-md-h2 {
    font-size: 18px;
}

.c4d-md-h3 {
    font-size: 16px;
}

.c4d-md-h4 {
    font-size: 15px;
}

/* =========================================================
   Code
   ========================================================= */

.c4d-inline-code {
    padding: 2px 5px;

    border-radius: 5px;

    background: #eff1f3;
    color: #24292f;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        "Liberation Mono",
        monospace;

    font-size: 0.9em;
}

.c4d-code-block {
    margin: 11px 0 4px;

    padding: 12px;

    border-radius: 8px;

    background: #0d1117;
    color: #e6edf3;

    overflow-x: auto;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        "Liberation Mono",
        monospace;

    font-size: 12px;
    line-height: 1.55;
}

.c4d-code-block code {
    white-space: pre;
}

/* =========================================================
   Thinking state
   ========================================================= */

.c4d-thinking .c4d-message-content {
    color: #57606a;
}

.c4d-thinking .c4d-message-content::after {
    content: " …";
    animation: c4d-dots 1.2s infinite;
}

@keyframes c4d-dots {
    0%, 20% {
        opacity: 0.2;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.2;
    }
}

/* =========================================================
   Input
   ========================================================= */

.c4d-chat-input-area {
    background: #ffffff;
    border-top: 1px solid #d8dee4;
}

.c4d-chat-input {
    display: flex;
    gap: 8px;

    padding: 12px 12px 7px;
}

#c4d-chat-input {
    flex: 1;
    min-width: 0;

    padding: 10px 12px;

    border: 1px solid #8c959f;
    border-radius: 9px;

    background: #ffffff;
    color: #1f2328;

    font-family: inherit;
    font-size: 14px;

    outline: none;
}

#c4d-chat-input::placeholder {
    color: #8c959f;
}

#c4d-chat-input:focus {
    border-color: #1f6feb;

    box-shadow:
        0 0 0 2px rgba(31, 111, 235, 0.15);
}

#c4d-chat-send {
    width: 42px;

    border: none;
    border-radius: 9px;

    background: #1f6feb;
    color: #ffffff;

    font-size: 20px;
    font-weight: 700;

    cursor: pointer;
}

#c4d-chat-send:hover {
    background: #185abc;
}

#c4d-chat-send:disabled {
    opacity: 0.45;
    cursor: default;
}

.c4d-chat-footer {
    padding: 0 13px 10px;

    font-size: 10px;

    color: #8c959f;

    text-align: center;
}

/* =========================================================
   Dark mode
   ========================================================= */

[data-theme="dark"] #c4d-chat-widget {
    background: #161b22;
    color: #e6edf3;
    border-color: #30363d;
}

[data-theme="dark"] #c4d-chat-messages {
    background: #0d1117;
}

[data-theme="dark"] .c4d-message-label {
    color: #8b949e;
}

[data-theme="dark"] .c4d-assistant .c4d-message-content {
    background: #161b22;
    color: #e6edf3;
    border-color: #30363d;
}

[data-theme="dark"] .c4d-md-h2,
[data-theme="dark"] .c4d-md-h3,
[data-theme="dark"] .c4d-md-h4 {
    color: #e6edf3;
}

[data-theme="dark"] .c4d-inline-code {
    background: #21262d;
    color: #e6edf3;
}

[data-theme="dark"] .c4d-suggestion-chip {
    background: #161b22;
    color: #58a6ff;
    border-color: #30363d;
}

[data-theme="dark"] .c4d-suggestion-chip:hover {
    background: #1c2733;
    border-color: #58a6ff;
}

[data-theme="dark"] .c4d-message-content a {
    color: #58a6ff;
}

[data-theme="dark"] .c4d-chat-input-area {
    background: #161b22;
    border-color: #30363d;
}

[data-theme="dark"] #c4d-chat-input {
    background: #0d1117;
    color: #e6edf3;
    border-color: #484f58;
}

[data-theme="dark"] #c4d-chat-input::placeholder {
    color: #6e7681;
}

[data-theme="dark"] .c4d-chat-footer {
    color: #6e7681;
}

[data-theme="dark"] .c4d-thinking .c4d-message-content {
    color: #8b949e;
}

/* =========================================================
   Mobile
   ========================================================= */

@media (max-width: 600px) {
    #c4d-chat-button {
        right: 16px;
        bottom: 16px;
    }

    #c4d-chat-widget {
        right: 12px;
        bottom: 72px;

        width: calc(100vw - 24px);
        height: calc(100vh - 100px);
        max-height: none;
    }
}