/* =============================================================================
   Semakalu AI Assistant — Chat Widget Styles
   Design language borrowed from semakalu.com portfolio:
     • Light grey surface (#f5f5f5) with white content cards
     • Bold left-border accent stripe on agent messages
     • Sharp 8px corners (not pills) matching portfolio card style
     • #111111 black for user bubbles / CTA — matches "ONBOARDING AI AGENT" btn
     • Inter / system-UI font stack
     • #6b7280 muted grey matching portfolio label colour
   All colours are still driven by CSS custom properties set by the shortcode.
   ============================================================================= */

/* ── Widget root ─────────────────────────────────────────────────────────── */

.semakalu-ai-chat-widget {
    --semakalu-ai-bg:       #f5f5f5;   /* light grey — matches portfolio page bg  */
    --semakalu-ai-primary:  #111111;
    --semakalu-ai-accent:   #111111;
    --semakalu-ai-muted:    #6b7280;   /* portfolio label grey                    */
    --semakalu-ai-border:   #e2e8f0;
    --semakalu-ai-input-bg: #111111;   /* dark pill — matches CTA button          */
    --semakalu-ai-input-fg: #ffffff;
    --semakalu-ai-card-bg:  #ffffff;   /* white card surface for agent messages   */

    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 860px;
    margin: 0 auto;
    background: var(--semakalu-ai-bg);
    color: var(--semakalu-ai-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    box-sizing: border-box;
}

.semakalu-ai-chat-widget *,
.semakalu-ai-chat-widget *::before,
.semakalu-ai-chat-widget *::after {
    box-sizing: inherit;
}

/* ── Header ──────────────────────────────────────────────────────────────── */

.semakalu-ai-widget-header {
    padding: 56px 48px 28px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.semakalu-ai-widget-heading {
    font-size: 3rem;
    font-weight: 800;
    margin: 0 0 14px;
    color: var(--semakalu-ai-primary);
    line-height: 1.1;
    letter-spacing: -1.5px;
}

.semakalu-ai-widget-heading em {
    font-style: normal;
    color: #9ca3af;
}

.semakalu-ai-widget-subheading {
    font-size: 1.05rem;
    color: var(--semakalu-ai-muted);
    margin: 0 auto 28px;
    line-height: 1.7;
    font-weight: 400;
    max-width: 520px;
    letter-spacing: 0.1px;
}

/* ── Quick-prompt buttons — rectangular, matching portfolio chip style ────── */

.semakalu-ai-quick-prompts {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 4px;
}

.semakalu-ai-prompt-btn {
    background: var(--semakalu-ai-card-bg);
    border: 1px solid var(--semakalu-ai-border);
    border-radius: 6px;
    padding: 9px 20px;
    font-size: 0.73rem;
    font-weight: 700;
    letter-spacing: 0.9px;
    text-transform: uppercase;
    cursor: pointer;
    color: var(--semakalu-ai-primary);
    transition: background 0.16s, color 0.16s, border-color 0.16s, box-shadow 0.16s;
    line-height: 1;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.semakalu-ai-prompt-btn:hover,
.semakalu-ai-prompt-btn:focus-visible {
    background: var(--semakalu-ai-accent);
    color: #ffffff;
    border-color: var(--semakalu-ai-accent);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.18);
    outline: none;
}

/* ── Large watermark — fixed, full viewport width ────────────────────────── */

.semakalu-ai-watermark {
    position: fixed;
    top: 50vh;
    left: 50vw;
    transform: translate(-50%, -50%);
    font-size: 17vw;
    font-weight: 900;
    color: rgba(0, 0, 0, 0.03);
    pointer-events: none;
    user-select: none;
    z-index: 0;
    line-height: 0.75;
    white-space: nowrap;
    text-align: center;
    font-family: serif;
}

/* ── Messages transcript ─────────────────────────────────────────────────── */

.semakalu-ai-messages {
    flex: 1;
    padding: 20px 40px 220px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    z-index: 2;
}

/* ── Message cards (user / assistant) ───────────────────────────────────── */

.semakalu-ai-msg-card {
    display: flex;
    flex-direction: column;
    max-width: 82%;
    gap: 6px;
}

.semakalu-ai-msg-card--user {
    align-self: flex-end;
    align-items: flex-end;
}

.semakalu-ai-msg-card--assistant {
    align-self: flex-start;
    align-items: flex-start;
}

/* Portfolio-style label — small, uppercase, tracked */
.semakalu-ai-msg-label {
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: var(--semakalu-ai-muted);
    padding: 0 4px;
}

/* Base bubble — sharp 8px corners matching portfolio card style */
.semakalu-ai-msg-bubble {
    padding: 14px 20px;
    border-radius: 8px;
    font-size: 1.05rem;
    line-height: 1.68;
    word-break: break-word;
    font-weight: 400;
}

/* User bubble — solid black, matches portfolio "ONBOARDING AI AGENT" CTA */
.semakalu-ai-msg-card--user .semakalu-ai-msg-bubble {
    background: var(--semakalu-ai-accent);
    color: #ffffff;
    white-space: pre-wrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
}

/* Agent bubble — white card with left-border accent stripe, portfolio card style */
.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble {
    background: var(--semakalu-ai-card-bg);
    color: var(--semakalu-ai-primary);
    border-left: 3px solid var(--semakalu-ai-primary);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
}

/* ── Markdown content inside assistant bubbles ───────────────────────────── */

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble p {
    margin: 0 0 0.6em;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble p:last-child {
    margin-bottom: 0;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble ul,
.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble ol {
    margin: 0.4em 0 0.6em 1.2em;
    padding: 0;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble li {
    margin-bottom: 0.25em;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble code {
    background: rgba(0, 0, 0, 0.06);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.88em;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble pre {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 6px;
    padding: 10px 14px;
    overflow-x: auto;
    margin: 0.6em 0;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble pre code {
    background: none;
    padding: 0;
    font-size: 0.85em;
    line-height: 1.55;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble strong { font-weight: 700; }
.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble em     { font-style: italic; }

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble a {
    color: var(--semakalu-ai-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble h1,
.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble h2,
.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble h3 {
    font-size: 1em;
    font-weight: 700;
    margin: 0.6em 0 0.3em;
}

.semakalu-ai-msg-card--assistant .semakalu-ai-msg-bubble blockquote {
    border-left: 2px solid rgba(0, 0, 0, 0.12);
    margin: 0.5em 0;
    padding: 2px 0 2px 12px;
    color: rgba(0, 0, 0, 0.5);
}

/* ── Error / status notices ──────────────────────────────────────────────── */

.semakalu-ai-msg {
    font-size: 0.875rem;
    line-height: 1.55;
    word-break: break-word;
    white-space: pre-wrap;
}

.semakalu-ai-msg--error {
    align-self: stretch;
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-left: 3px solid #b91c1c;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 8px;
    padding: 10px 16px;
    margin-top: 4px;
}

/* ── Typing indicator — matches agent card style ─────────────────────────── */

.semakalu-ai-msg--typing {
    align-self: flex-start;
    background: var(--semakalu-ai-card-bg);
    border-radius: 8px;
    border-left: 3px solid var(--semakalu-ai-primary);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.semakalu-ai-msg--typing span {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--semakalu-ai-primary);
    opacity: 0.35;
    animation: semakalu-ai-bounce 1.2s infinite ease-in-out;
}

.semakalu-ai-msg--typing span:nth-child(1) { animation-delay: 0.00s; }
.semakalu-ai-msg--typing span:nth-child(2) { animation-delay: 0.18s; }
.semakalu-ai-msg--typing span:nth-child(3) { animation-delay: 0.36s; }

@keyframes semakalu-ai-bounce {
    0%, 80%, 100% { transform: translateY(0);    opacity: 0.3; }
    40%           { transform: translateY(-5px); opacity: 0.9; }
}

/* ── Bottom bar — fixed to viewport bottom ───────────────────────────────── */

.semakalu-ai-bottom-bar {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 900px;
    z-index: 10;
    background: var(--semakalu-ai-bg);
}

.semakalu-ai-bottom-bar::before {
    content: '';
    display: block;
    height: 48px;
    margin-top: -48px;
    background: linear-gradient(to bottom, transparent, var(--semakalu-ai-bg));
    pointer-events: none;
}

/* ── Navigation bar ──────────────────────────────────────────────────────── */

.semakalu-ai-widget-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 28px;
    border-top: 1px solid var(--semakalu-ai-border);
    position: relative;
    z-index: 2;
}

.semakalu-ai-nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.semakalu-ai-nav-link {
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.9px;
    text-transform: uppercase;
    color: var(--semakalu-ai-muted);
    text-decoration: none;
    transition: color 0.15s;
    line-height: 1;
    white-space: nowrap;
}

.semakalu-ai-nav-link:hover {
    color: var(--semakalu-ai-primary);
    text-decoration: none;
}

/* Schedule link uses accent colour to draw the eye */
.semakalu-ai-nav-schedule {
    color: var(--semakalu-ai-accent);
    opacity: 0.85;
}

.semakalu-ai-nav-schedule:hover {
    opacity: 1;
}

.semakalu-ai-nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* "+ New Chat" button — rectangular, portfolio chip style */
.semakalu-ai-new-chat-btn {
    background: transparent;
    border: 1px solid var(--semakalu-ai-border);
    border-radius: 5px;
    padding: 5px 14px;
    font-size: 0.63rem;
    font-weight: 700;
    letter-spacing: 0.7px;
    text-transform: uppercase;
    cursor: pointer;
    color: var(--semakalu-ai-muted);
    font-family: inherit;
    white-space: nowrap;
    transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.semakalu-ai-new-chat-btn:hover:not(:disabled) {
    background: var(--semakalu-ai-accent);
    color: #ffffff;
    border-color: var(--semakalu-ai-accent);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.16);
}

.semakalu-ai-new-chat-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.semakalu-ai-menu-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--semakalu-ai-muted);
    letter-spacing: 2px;
    padding: 4px 6px;
    line-height: 1;
    transition: color 0.15s;
}

.semakalu-ai-menu-btn:hover {
    color: var(--semakalu-ai-primary);
}

/* ── Dark input bar — matches portfolio CTA button style ─────────────────── */

.semakalu-ai-input-area {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    padding: 14px 14px 14px 20px;
    background: var(--semakalu-ai-input-bg);
    border-radius: 14px;
    margin: 2px 24px 10px;
    position: relative;
    z-index: 2;
}

.semakalu-ai-message-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--semakalu-ai-input-fg);
    font-size: 0.95rem;
    font-family: inherit;
    resize: none;
    min-height: 52px;
    max-height: 200px;
    line-height: 1.6;
    padding: 2px 0;
    overflow-y: hidden;
    scrollbar-width: none;
}

.semakalu-ai-message-input::-webkit-scrollbar {
    display: none;
}

.semakalu-ai-message-input::placeholder {
    color: rgba(255, 255, 255, 0.32);
}

/* Send button — white circle on dark field, like portfolio icon buttons */
.semakalu-ai-send-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #ffffff;
    color: #111111;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: opacity 0.15s, transform 0.12s;
    margin-bottom: 1px;
}

.semakalu-ai-send-btn:hover:not(:disabled) {
    opacity: 0.82;
    transform: scale(1.07);
}

.semakalu-ai-send-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ── Footer text ─────────────────────────────────────────────────────────── */

.semakalu-ai-widget-footer {
    text-align: center;
    font-size: 0.65rem;
    letter-spacing: 2px;
    color: var(--semakalu-ai-muted);
    text-transform: uppercase;
    margin: 0;
    padding: 6px 16px 14px;
    position: relative;
    z-index: 2;
}

/* ── Session status bubble ───────────────────────────────────────────────── */
/*
 * Shown during connection ("Initiating session…").
 * Matches the agent card style: white, left-border accent, 8px radius.
 * When the session resolves, JS removes the --status modifier so the bubble
 * transitions seamlessly into a normal agent message appearance.
 */

.semakalu-ai-msg-card--status .semakalu-ai-msg-bubble {
    background: var(--semakalu-ai-card-bg);
    color: var(--semakalu-ai-primary);
    font-style: normal;
    font-size: 1.05rem;
    padding: 14px 20px;
    border-radius: 8px;
    border-left: 3px solid var(--semakalu-ai-primary);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
    display: flex;
    flex-direction: column;
    gap: 10px;
    line-height: 1.68;
}

.semakalu-ai-status-dots {
    display: flex;
    align-items: center;
    gap: 5px;
}

.semakalu-ai-status-dots span {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--semakalu-ai-primary);
    opacity: 0.35;
    animation: semakalu-ai-bounce 1.2s ease-in-out infinite;
}

.semakalu-ai-status-dots span:nth-child(2) { animation-delay: 0.2s; }
.semakalu-ai-status-dots span:nth-child(3) { animation-delay: 0.4s; }

.semakalu-ai-status-text {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--semakalu-ai-primary);
    font-style: normal;
}

.semakalu-ai-msg-card--status .semakalu-ai-msg-label {
    opacity: 0.7;
}

/* Error state — left border switches to red, card background light red */
.semakalu-ai-msg-card--status-error .semakalu-ai-msg-bubble {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-left: 3px solid #b91c1c;
    border-radius: 8px;
    padding: 14px 20px;
    font-size: 1.05rem;
    font-weight: 500;
    box-shadow: 0 1px 3px rgba(185, 28, 28, 0.08);
}

.semakalu-ai-msg-card--status-error .semakalu-ai-msg-label {
    color: #b91c1c;
    opacity: 0.8;
}

/* ── Contact form bubble ─────────────────────────────────────────────────── */
/*
 * Rendered as a separate card after the agent's reply text. Uses --form
 * modifiers on both the card and the bubble to opt into form-specific layout.
 * The "SECURE FORM" label and disclaimer make the data handling intent explicit.
 */

/* "SECURE FORM" label — same size/weight as agent labels but fully opaque */
.semakalu-ai-msg-label--secure {
    opacity: 1;
    color: var(--semakalu-ai-primary);
    letter-spacing: 2px;
}

/* Privacy disclaimer strip — appears above the fields */
.semakalu-ai-form-disclaimer {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--semakalu-ai-muted);
    background: rgba(0, 0, 0, 0.03);
    border-radius: 5px;
    padding: 8px 12px;
    margin: 0 0 18px;
    line-height: 1.55;
}

.semakalu-ai-form-disclaimer strong {
    color: var(--semakalu-ai-primary);
    font-weight: 700;
}

.semakalu-ai-msg-bubble--form {
    padding: 20px 22px 22px;
}

.semakalu-ai-contact-form {
    display: flex;
    flex-direction: column;
    gap: 13px;
}

.semakalu-ai-form-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.semakalu-ai-form-label {
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.9px;
    text-transform: uppercase;
    color: var(--semakalu-ai-muted);
}

.semakalu-ai-form-required {
    color: #b91c1c;
}

.semakalu-ai-form-input {
    width: 100%;
    border: 1px solid var(--semakalu-ai-border);
    border-radius: 6px;
    padding: 9px 13px;
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--semakalu-ai-primary);
    background: var(--semakalu-ai-bg);
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.semakalu-ai-form-input:focus {
    border-color: var(--semakalu-ai-primary);
    box-shadow: 0 0 0 2px rgba(17, 17, 17, 0.07);
}

.semakalu-ai-form-submit {
    align-self: flex-start;
    background: var(--semakalu-ai-primary);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    padding: 9px 24px;
    font-size: 0.73rem;
    font-weight: 700;
    letter-spacing: 0.9px;
    text-transform: uppercase;
    cursor: pointer;
    font-family: inherit;
    margin-top: 4px;
    transition: opacity 0.15s;
}

.semakalu-ai-form-submit:hover:not(:disabled) {
    opacity: 0.78;
}

.semakalu-ai-form-submit:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.semakalu-ai-form-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-left: 3px solid #b91c1c;
    border-radius: 5px;
    padding: 8px 12px;
    font-size: 0.82rem;
    font-weight: 500;
    line-height: 1.5;
}

.semakalu-ai-form-confirm {
    color: var(--semakalu-ai-primary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.semakalu-ai-form-confirm p {
    margin: 0 0 0.4em;
}

.semakalu-ai-form-confirm p:last-child {
    margin-bottom: 0;
}

/* ── Form confirmation bubble ────────────────────────────────────────────── */
/*
 * User-side bubble rendered when a contact form is submitted.
 * Green background distinguishes it from regular black user messages.
 * Appears on fresh submit and is re-rendered from chat_log on page reload.
 */

.semakalu-ai-msg-card--form-confirmation .semakalu-ai-msg-bubble {
    background: #cfcfcf;
    color: #000000;
    border-right: 2px solid;
}

.semakalu-ai-msg-label--form-confirmation {
    color: ##000000;
}

/* ── Session expired bubble ──────────────────────────────────────────────── */
/*
 * Shown when the ADK server returns 404 on send_message — the session no
 * longer exists on the agent side. Styled to read as a warning without being
 * alarming. Contains an inline "Start New Chat" button.
 */

.semakalu-ai-msg-card--session-expired .semakalu-ai-msg-bubble {
    background: #fff8f0;
    border-left: 3px solid #f97316;
    color: #3c3c3c;
}

.semakalu-ai-msg-label--session-expired {
    color: #f97316;
}

.semakalu-ai-session-expired-text {
    margin: 0 0 12px;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ── Character counter ───────────────────────────────────────────────────── */

.semakalu-ai-char-counter {
    text-align: right;
    font-size: 0.7rem;
    color: var(--semakalu-ai-muted);
    padding: 2px 4px 0;
    letter-spacing: 0.3px;
    transition: color 0.15s ease;
}

.semakalu-ai-char-counter--warn {
    color: #f59e0b;
}

.semakalu-ai-char-counter--over {
    color: #ef4444;
    font-weight: 700;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */

@media (max-width: 640px) {
    .semakalu-ai-widget-header     { padding: 36px 24px 16px; }
    .semakalu-ai-widget-heading    { font-size: 2.1rem; letter-spacing: -0.8px; }
    .semakalu-ai-widget-subheading { font-size: 0.95rem; }
    .semakalu-ai-prompt-btn        { font-size: 0.7rem; padding: 8px 16px; }
    .semakalu-ai-messages          { padding: 16px 20px 200px; gap: 16px; }
    .semakalu-ai-input-area        { margin: 2px 12px 10px; border-radius: 12px; }
    .semakalu-ai-msg-card          { max-width: 92%; }
    .semakalu-ai-watermark         { font-size: 95vw; }
    .semakalu-ai-nav-links         { gap: 12px; }
    .semakalu-ai-nav-link          { font-size: 0.62rem; }
}