/**
 * Signstar AI Assistant — Chat Styles
 * Matched to Signstar Signs & Graphics brand: DM Sans, #1e3037, #00adef
 */

:root {
    --wsai-accent: #00adef;
    --wsai-accent-hover: #0098d0;
    --wsai-bg: #162229;
    --wsai-bg-secondary: #1e3037;
    --wsai-bg-tertiary: #24404a;
    --wsai-text: #f0f4f7;
    --wsai-text-muted: #6b8290;
    --wsai-border: rgba(0, 173, 239, 0.12);
    --wsai-border-hover: rgba(0, 173, 239, 0.35);
    --wsai-user-bg: #00adef;
    --wsai-user-text: #ffffff;
    --wsai-assistant-bg: rgba(255, 255, 255, 0.05);
    --wsai-assistant-text: #e0e0e0;
    --wsai-radius: 16px;
    --wsai-radius-sm: 8px;
    --wsai-shadow: 0 20px 60px rgba(0, 0, 0, 0.35), 0 4px 20px rgba(0, 0, 0, 0.15);
    --wsai-font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --wsai-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.wsai-toggle {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    border: 1px solid rgba(0, 173, 239, 0.25);
    background: var(--wsai-accent);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 173, 239, 0.3);
    transition: var(--wsai-transition);
    flex-shrink: 0;
}

.wsai-toggle:hover {
    transform: scale(1.06);
    box-shadow: 0 6px 28px rgba(0, 173, 239, 0.45);
    background: var(--wsai-accent-hover);
}

.wsai-toggle.wsai-toggle--active .wsai-toggle-icon--chat { display: none; }
.wsai-toggle.wsai-toggle--active .wsai-toggle-icon--close { display: block !important; }

.wsai-modal {
    position: fixed;
    bottom: 96px;
    right: 24px;
    z-index: 999999;
    width: 400px;
    max-width: calc(100vw - 32px);
    height: 600px;
    max-height: calc(100vh - 140px);
    border-radius: var(--wsai-radius);
    overflow: hidden;
    box-shadow: var(--wsai-shadow);
    border: 1px solid var(--wsai-border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px) scale(0.97);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    font-family: var(--wsai-font);
}

.wsai-modal.wsai-modal--open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.wsai-modal-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--wsai-bg);
}

.wsai-inline {
    border-radius: var(--wsai-radius);
    overflow: hidden;
    box-shadow: var(--wsai-shadow);
    font-family: var(--wsai-font);
    border: 1px solid rgba(30, 48, 55, 0.12);
}

/* ─── Inline colour overrides (set via style attribute on .wsai-inline) ─── */
.wsai-inline .wsai-modal-inner--inline { background: var(--wsai-inline-bg, var(--wsai-bg)); }
.wsai-inline .wsai-header--inline { background: var(--wsai-inline-bg, var(--wsai-bg-secondary)); border-color: rgba(255,255,255,0.06); }
.wsai-inline .wsai-header-avatar--inline { background: var(--wsai-inline-accent, var(--wsai-accent)); }
.wsai-inline .wsai-header-title--inline { color: var(--wsai-inline-text, var(--wsai-text)); }
.wsai-inline .wsai-header-subtitle--inline { color: color-mix(in srgb, var(--wsai-inline-text, var(--wsai-text)) 60%, transparent); }
.wsai-inline .wsai-messages--inline { color: var(--wsai-inline-text, var(--wsai-text)); }
.wsai-inline .wsai-input-area--inline { background: var(--wsai-inline-bg, var(--wsai-bg-secondary)); border-color: rgba(255,255,255,0.06); }
.wsai-inline .wsai-input-wrapper--inline { background: var(--wsai-inline-input-bg, var(--wsai-bg-tertiary)); }
.wsai-inline .wsai-input--inline { color: var(--wsai-inline-text, var(--wsai-text)); }
.wsai-inline .wsai-send--inline { background: var(--wsai-inline-accent, var(--wsai-accent)); }
.wsai-inline .wsai-powered--inline { color: color-mix(in srgb, var(--wsai-inline-text, var(--wsai-text)) 50%, transparent); }
.wsai-inline .wsai-quick-btn { border-color: var(--wsai-inline-accent, var(--wsai-accent)); color: var(--wsai-inline-accent, var(--wsai-accent)); }
.wsai-inline .wsai-quick-btn:hover { background: var(--wsai-inline-accent, var(--wsai-accent)); color: #fff; }
.wsai-inline .wsai-msg--user { background: var(--wsai-inline-accent, var(--wsai-accent)); }

/* ─── Link Cards ─── */
.wsai-link-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-self: flex-start;
    width: 85%;
    animation: wsai-fade-in 0.25s ease;
}

.wsai-link-card {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--wsai-border);
    border-radius: 10px;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s, transform 0.15s;
    cursor: pointer;
}

.wsai-link-card:hover {
    background: rgba(0, 173, 239, 0.08);
    border-color: var(--wsai-accent);
    transform: translateX(4px);
}

.wsai-link-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--wsai-accent);
    letter-spacing: 0.01em;
}

.wsai-link-card-desc {
    font-size: 12px;
    color: var(--wsai-text-muted);
    font-weight: 300;
}

/* ─── Contact Form (inline in chat) ─── */
.wsai-contact-form {
    align-self: flex-start;
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 85%;
    animation: wsai-fade-in 0.25s ease;
}

.wsai-form-field {
    width: 100%;
}

.wsai-form-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--wsai-bg-tertiary, #24404a);
    border: 1px solid var(--wsai-border, rgba(0,173,239,0.12));
    border-radius: 10px;
    color: var(--wsai-text, #f0f4f7);
    font-family: var(--wsai-font);
    font-size: 14px;
    font-weight: 400;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.wsai-form-input::placeholder {
    color: var(--wsai-text-muted, #6b8290);
    font-weight: 300;
}

.wsai-form-input:focus {
    border-color: var(--wsai-accent);
}

.wsai-form-submit {
    width: 100%;
    padding: 11px 16px;
    background: var(--wsai-accent);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-family: var(--wsai-font);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
    margin-top: 4px;
    letter-spacing: 0.01em;
}

.wsai-form-submit:hover {
    background: var(--wsai-accent-hover, #0098d0);
    transform: translateY(-1px);
}

.wsai-form-submit:active {
    transform: scale(0.98);
}

/* ─── Callback Picker ─── */
.wsai-callback-picker {
    align-self: flex-start;
    width: 90%;
    animation: wsai-fade-in 0.25s ease;
}

.wsai-cb-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--wsai-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.wsai-cb-time-label {
    margin-top: 12px;
}

.wsai-cb-days {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.wsai-cb-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--wsai-border);
    border-radius: 10px;
    color: var(--wsai-text);
    font-family: var(--wsai-font);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 58px;
    flex: 1;
}

.wsai-cb-day:hover {
    border-color: var(--wsai-accent);
    background: rgba(0, 173, 239, 0.08);
}

.wsai-cb-day--active {
    border-color: var(--wsai-accent);
    background: var(--wsai-accent);
    color: #fff;
}

.wsai-cb-day--active:hover {
    background: var(--wsai-accent);
}

.wsai-cb-day-name {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.7;
}

.wsai-cb-day--active .wsai-cb-day-name {
    opacity: 1;
}

.wsai-cb-day-num {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.1;
}

.wsai-cb-day-month {
    font-size: 11px;
    font-weight: 500;
    opacity: 0.6;
}

.wsai-cb-day--active .wsai-cb-day-month {
    opacity: 0.9;
}

.wsai-cb-times {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.wsai-cb-time {
    flex: 1;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--wsai-border);
    border-radius: 10px;
    color: var(--wsai-text);
    font-family: var(--wsai-font);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.wsai-cb-time:hover {
    border-color: var(--wsai-accent);
    background: var(--wsai-accent);
    color: #fff;
    transform: translateY(-1px);
}

.wsai-cb-skip {
    width: 100%;
    margin-top: 12px;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--wsai-border);
    border-radius: 50px;
    color: var(--wsai-text-muted);
    font-family: var(--wsai-font);
    font-size: 13px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s ease;
}

.wsai-cb-skip:hover {
    border-color: var(--wsai-text-muted);
    color: var(--wsai-text);
}

.wsai-modal-inner--inline { border-radius: var(--wsai-radius); }

.wsai-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--wsai-bg-secondary);
    border-bottom: 1px solid var(--wsai-border);
    flex-shrink: 0;
}

.wsai-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.wsai-header-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--wsai-accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}

.wsai-header-title {
    font-weight: 600;
    font-size: 15px;
    color: var(--wsai-text);
    letter-spacing: 0.01em;
}

.wsai-header-subtitle {
    font-size: 12px;
    color: var(--wsai-text-muted);
    margin-top: 1px;
    font-weight: 400;
}

.wsai-header-close {
    background: none;
    border: none;
    color: var(--wsai-text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
}

.wsai-header-close:hover {
    color: var(--wsai-text);
    background: var(--wsai-bg-tertiary);
}

.wsai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

.wsai-messages::-webkit-scrollbar { width: 5px; }
.wsai-messages::-webkit-scrollbar-track { background: transparent; }
.wsai-messages::-webkit-scrollbar-thumb { background: rgba(107, 130, 144, 0.25); border-radius: 3px; }
.wsai-messages::-webkit-scrollbar-thumb:hover { background: rgba(107, 130, 144, 0.4); }

.wsai-msg {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 14px;
    line-height: 1.6;
    word-wrap: break-word;
    animation: wsai-fade-in 0.25s ease;
    font-weight: 300;
}

@keyframes wsai-fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.wsai-msg--user {
    align-self: flex-end;
    background: var(--wsai-user-bg);
    color: var(--wsai-user-text);
    border-bottom-right-radius: 4px;
    font-weight: 400;
}

.wsai-msg--assistant {
    align-self: flex-start;
    background: var(--wsai-assistant-bg);
    color: var(--wsai-assistant-text);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--wsai-border);
}

.wsai-msg--assistant a {
    color: var(--wsai-accent);
    text-decoration: underline;
    text-decoration-color: rgba(0, 173, 239, 0.3);
    text-underline-offset: 2px;
    font-weight: 500;
    transition: text-decoration-color 0.2s;
}

.wsai-msg--assistant a:hover { text-decoration-color: var(--wsai-accent); }
.wsai-msg--assistant p { margin: 0 0 8px; }
.wsai-msg--assistant p:last-child { margin-bottom: 0; }
.wsai-msg--assistant ul, .wsai-msg--assistant ol { margin: 4px 0 8px 18px; padding: 0; }
.wsai-msg--assistant li { margin-bottom: 4px; }
.wsai-msg--assistant strong { color: var(--wsai-text); font-weight: 600; }

.wsai-typing {
    display: flex;
    gap: 5px;
    padding: 14px 16px;
    align-self: flex-start;
    background: var(--wsai-assistant-bg);
    border-radius: 14px;
    border-bottom-left-radius: 4px;
    border: 1px solid var(--wsai-border);
}

.wsai-typing-dot {
    width: 7px;
    height: 7px;
    background: var(--wsai-text-muted);
    border-radius: 50%;
    animation: wsai-bounce 1.4s infinite ease-in-out both;
}

.wsai-typing-dot:nth-child(1) { animation-delay: 0s; }
.wsai-typing-dot:nth-child(2) { animation-delay: 0.16s; }
.wsai-typing-dot:nth-child(3) { animation-delay: 0.32s; }

@keyframes wsai-bounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.3; }
    40% { transform: scale(1); opacity: 1; }
}

.wsai-input-area {
    padding: 12px 16px 16px;
    background: var(--wsai-bg-secondary);
    border-top: 1px solid var(--wsai-border);
    flex-shrink: 0;
}

.wsai-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    background: var(--wsai-bg-tertiary);
    border: 1px solid var(--wsai-border);
    border-radius: 50px;
    padding: 6px 6px 6px 18px;
    transition: border-color 0.3s ease;
}

.wsai-input-wrapper:focus-within { border-color: var(--wsai-accent); }

.wsai-input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--wsai-text);
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    outline: none;
    padding: 6px 0;
    font-family: var(--wsai-font);
    font-weight: 300;
    max-height: 100px;
}

.wsai-input::placeholder { color: var(--wsai-text-muted); font-weight: 300; }

.wsai-send {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--wsai-accent);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: opacity 0.2s, transform 0.2s, background 0.2s;
}

.wsai-send:disabled { opacity: 0.35; cursor: default; }
.wsai-send:not(:disabled):hover { transform: scale(1.05); background: var(--wsai-accent-hover); }

.wsai-powered {
    text-align: center;
    font-size: 11px;
    color: var(--wsai-text-muted);
    margin-top: 10px;
    font-weight: 400;
    letter-spacing: 0.02em;
}

.wsai-powered strong { color: var(--wsai-text-muted); font-weight: 600; }

.wsai-error {
    align-self: center;
    background: rgba(239, 68, 68, 0.1);
    color: #ff6b6b;
    padding: 8px 14px;
    border-radius: var(--wsai-radius-sm);
    font-size: 13px;
    text-align: center;
    border: 1px solid rgba(239, 68, 68, 0.15);
}

/* ─── Quick Reply Buttons ─── */
.wsai-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-self: flex-start;
    padding: 4px 0;
    animation: wsai-fade-in 0.25s ease;
}

.wsai-quick-btn {
    background: transparent;
    border: 1px solid var(--wsai-accent);
    color: var(--wsai-accent);
    padding: 7px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-family: var(--wsai-font);
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, transform 0.15s;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.wsai-quick-btn:hover {
    background: var(--wsai-accent);
    color: #fff;
    transform: translateY(-1px);
}

.wsai-quick-btn:active {
    transform: scale(0.97);
}

/* ─── Toggle Wrapper ─── */
.wsai-toggle-wrapper {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999998;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

/* ─── Tooltip Bubble ─── */
.wsai-tooltip {
    background: var(--wsai-bg);
    color: var(--wsai-text);
    padding: 10px 16px;
    border-radius: 12px;
    font-family: var(--wsai-font);
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    border: 1px solid var(--wsai-border);
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(8px);
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}

.wsai-tooltip.wsai-tooltip--visible {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

.wsai-tooltip-close {
    background: none;
    border: none;
    color: var(--wsai-text-muted);
    font-size: 18px;
    cursor: pointer;
    padding: 0 0 0 4px;
    line-height: 1;
    transition: color 0.15s;
}

.wsai-tooltip-close:hover {
    color: var(--wsai-text);
}

/* ─── Bounce Animation ─── */
@keyframes wsai-attention-bounce {
    0%, 100% { transform: translateY(0); }
    15% { transform: translateY(-12px); }
    30% { transform: translateY(0); }
    45% { transform: translateY(-6px); }
    60% { transform: translateY(0); }
}

.wsai-toggle.wsai-toggle--bounce {
    animation: wsai-attention-bounce 0.8s ease;
}

/* ─── Mobile Close Button (inside modal) ─── */
.wsai-mobile-close {
    display: none;
}

@media (max-width: 480px) {
    .wsai-modal {
        bottom: 0;
        right: 0;
        width: 100vw;
        max-width: 100vw;
        height: 100vh;
        max-height: 100vh;
        border-radius: 0;
        border: none;
    }

    .wsai-toggle-wrapper {
        bottom: 16px;
        right: 16px;
    }

    .wsai-toggle {
        position: relative;
        width: 52px;
        height: 52px;
    }

    .wsai-mobile-close {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 12px;
        background: var(--wsai-bg-secondary);
        border-bottom: 1px solid var(--wsai-border);
        cursor: pointer;
        flex-shrink: 0;
    }

    .wsai-mobile-close-bar {
        width: 40px;
        height: 4px;
        background: var(--wsai-text-muted);
        border-radius: 2px;
    }

    .wsai-tooltip {
        font-size: 13px;
        padding: 8px 14px;
    }
}