/**
 * AI Chat Assistant — Public Widget Styles
 *
 * CSS custom properties are set by PHP via wp_head (class-aica-plugin.php).
 * Do not hardcode colors here — use var(--aica-primary) etc.
 *
 * @package AI_Chat_Assistant
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

/* ── Design Tokens ──────────────────────────────────────────────────────── */
:root {
    --aica-primary:      #6366f1;
    --aica-primary-dark: #4f52c9;
    --aica-dark:         #1e293b;
    --aica-white:        #ffffff;
    --aica-light:        #f8fafc;
    --aica-border:       #e2e8f0;
    --aica-text:         #334155;
    --aica-text-muted:   #64748b;
    --aica-shadow:       0 10px 40px rgba(0, 0, 0, 0.15);
    --aica-radius:       16px;
    --aica-font:         'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Wrapper ─────────────────────────────────────────────────────────────── */
.aica-wrapper {
    position: fixed !important;
    bottom: 24px !important;
    right: 24px !important;
    z-index: 999999 !important;
    font-family: var(--aica-font);
    font-size: 14px;
    line-height: 1.5;
    box-sizing: border-box;
}

.aica-wrapper.aica-pos-left {
    right: auto !important;
    left: 24px !important;
}

.aica-wrapper *,
.aica-wrapper *::before,
.aica-wrapper *::after {
    box-sizing: border-box;
}

/* ── Toggle Button ───────────────────────────────────────────────────────── */
.aica-toggle-btn {
    width: 56px !important;
    height: 56px !important;
    border-radius: 50% !important;
    background: var(--aica-primary) !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
    cursor: pointer;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: var(--aica-shadow) !important;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), filter 0.25s ease;
    position: relative;
    overflow: hidden;
    z-index: 10;
}

.aica-toggle-btn:hover {
    filter: brightness(1.1);
    transform: scale(1.05);
}

.aica-toggle-btn span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.aica-toggle-btn svg,
.aica-custom-icon {
    width: 28px;
    height: 28px;
    fill: #ffffff;
    object-fit: contain;
}

.aica-custom-icon {
    width: 32px; /* Slightly larger for custom icons */
    height: 32px;
    border-radius: 4px;
}

.aica-icon-chat  { opacity: 1;  transform: scale(1); }
.aica-icon-close { opacity: 0;  transform: scale(0.5); }

.aica-toggle-btn.aica-open .aica-icon-chat  { opacity: 0;  transform: scale(0.5); }
.aica-toggle-btn.aica-open .aica-icon-close { opacity: 1;  transform: scale(1); }

/* ── Chat Window ─────────────────────────────────────────────────────────── */
.aica-window {
    position: absolute;
    bottom: 72px;
    right: 0;
    width: 360px !important;
    height: 520px !important;
    max-width: calc(100vw - 48px) !important;
    background: var(--aica-white);
    border-radius: var(--aica-radius) !important;
    box-shadow: var(--aica-shadow) !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden;
    border: 1px solid var(--aica-border) !important;
    opacity: 0;
    transform: translateY(16px) scale(0.97);
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: bottom right;
}

.aica-pos-left .aica-window {
    right: auto;
    left: 0;
    transform-origin: bottom left;
}

.aica-window.aica-active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.aica-header {
    background: var(--aica-dark) !important;
    padding: 14px 18px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-shrink: 0;
    border-bottom: 3px solid var(--aica-primary) !important;
}

.aica-header-title {
    color: #ffffff !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    margin: 0 !important;
}

.aica-header-close {
    background: transparent !important;
    border: none !important;
    padding: 4px !important;
}

.aica-header-close svg {
    width: 18px !important;
    height: 18px !important;
    fill: rgba(255,255,255,0.7) !important;
}

/* ── Chat Body ───────────────────────────────────────────────────────────── */
.aica-body {
    flex: 1 !important;
    overflow-y: auto !important;
    padding: 16px !important;
    background: var(--aica-light) !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
}

/* ── Messages & Avatars ──────────────────────────────────────────────────── */
.aica-msg {
    display: flex !important;
    align-items: flex-end !important;
    gap: 8px !important;
    max-width: 85% !important;
    font-size: 13.5px !important;
}

.aica-avatar {
    width: 28px !important;
    height: 28px !important;
    border-radius: 50% !important;
    flex-shrink: 0 !important;
    border: 1px solid var(--aica-border) !important;
}

.aica-bubble {
    padding: 10px 14px !important;
    border-radius: 14px !important;
    line-height: 1.5 !important;
    word-break: break-word !important;
}

.aica-msg-bot {
    align-self: flex-start !important;
}

.aica-msg-bot .aica-bubble, 
.aica-msg-bot:not(:has(.aica-bubble)) {
    background: var(--aica-white) !important;
    color: var(--aica-text) !important;
    border: 1px solid var(--aica-border) !important;
    border-bottom-left-radius: 4px !important;
}

/* Support for old structure just in case */
.aica-msg-bot:not(:has(.aica-bubble)) {
    padding: 10px 14px !important;
    border-radius: 14px !important;
    border-bottom-left-radius: 4px !important;
}

.aica-msg-user {
    align-self: flex-end !important;
    background: var(--aica-primary) !important;
    color: #ffffff !important;
    padding: 10px 14px !important;
    border-radius: 14px !important;
    border-bottom-right-radius: 4px !important;
}

/* ── Rich Content Styles ─────────────────────────────────────────────────── */
.aica-bubble img,
.aica-bubble video,
.aica-bubble iframe {
    max-width: 100% !important;
    height: auto !important;
    border-radius: 8px !important;
    margin: 8px 0 !important;
    display: block !important;
}

/* ── Footer ────────────────────────────────────────────────────────────── */
.aica-footer {
    padding: 12px 14px !important;
    background: var(--aica-white) !important;
    border-top: 1px solid var(--aica-border) !important;
    display: flex !important;
    gap: 8px !important;
    align-items: center !important;
}

#aica-input {
    flex: 1 !important;
    border: 1px solid var(--aica-border) !important;
    border-radius: 22px !important;
    padding: 9px 16px !important;
    background: var(--aica-light) !important;
    height: 40px !important;
}

.aica-send-btn {
    width: 40px !important;
    height: 40px !important;
    border-radius: 50% !important;
    background: var(--aica-primary) !important;
    border: none !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.aica-send-btn svg {
    width: 18px !important;
    fill: #ffffff !important;
}

/* ── Typing Indicator ────────────────────────────────────────────────────── */
.aica-typing {
    padding: 8px 16px !important;
    display: none;
    gap: 4px !important;
}

.aica-typing-active {
    display: flex !important;
}

.aica-typing span {
    width: 6px !important;
    height: 6px !important;
    background: var(--aica-text-muted) !important;
    border-radius: 50% !important;
    animation: aica-bounce 1s infinite !important;
}

.aica-typing span:nth-child(2) { animation-delay: 0.2s; }
.aica-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes aica-bounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}

/* ── Mobile ──────────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .aica-window {
        position: fixed;
        inset: 0;
        width: 100%;
        height: 100%;
        border-radius: 0 !important;
        transform: translateY(100%);
    }

    .aica-window.aica-active {
        transform: translateY(0);
    }

    .aica-toggle-btn.aica-open {
        display: none !important;
    }
}