/**
 * AI Price Negotiator — Checkout Widget Styles
 *
 * Inline widget that feels native to the WooCommerce checkout.
 * Uses CSS custom properties for theming via --aipn-primary.
 */

/* === Variables === */
:root {
    --aipn-primary: #F59E0B;
    --aipn-primary-hover: #B45309;
    --aipn-bg: #ffffff;
    --aipn-surface: #f9fafb;
    --aipn-border: #e5e7eb;
    --aipn-text: #111827;
    --aipn-text-muted: #6b7280;
    --aipn-msg-user: var(--aipn-primary);
    --aipn-msg-assistant: #f3f4f6;
    --aipn-msg-system: #fef3c7;
    --aipn-success: #059669;
    --aipn-radius: 12px;
    --aipn-radius-sm: 8px;
    --aipn-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    --aipn-font-size: 14px;
    --aipn-bubble-font-size: 13px;
    --aipn-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --aipn-shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.07), 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* === Widget Container === */
.aipn-widget {
    margin: 20px auto;
    max-width: var(--aipn-widget-width, 500px);
    font-family: var(--aipn-font);
    font-size: var(--aipn-font-size);
    line-height: 1.5;
    color: var(--aipn-text);
}

/* When inside the classic checkout order review, match parent width. */
.woocommerce .aipn-widget,
#order_review .aipn-widget {
    max-width: 100%;
}

/* When inside block checkout sidebar, match sidebar width. */
.wc-block-checkout__sidebar .aipn-widget,
.wc-block-checkout .aipn-widget {
    max-width: 100%;
}

/* === CTA (Collapsed State) === */
.aipn-widget__cta {
    background: var(--aipn-cta-bg, var(--aipn-surface));
    border: 1px solid var(--aipn-border);
    border-radius: var(--aipn-radius);
    padding: 16px 20px;
    cursor: default;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.aipn-widget__cta:hover {
    border-color: var(--aipn-primary);
    box-shadow: var(--aipn-shadow);
}

.aipn-widget__cta-content {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.aipn-widget__cta-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--aipn-primary);
    color: #ffffff;
    flex-shrink: 0;
}

.aipn-widget__cta-text {
    flex: 1;
    min-width: 150px;
}

.aipn-widget__cta-text strong {
    display: block;
    font-size: 15px;
    color: var(--aipn-cta-text, var(--aipn-text));
}

.aipn-widget__cta-text small {
    color: var(--aipn-cta-text, var(--aipn-text-muted));
    font-size: 13px;
}

.aipn-widget__cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--aipn-cta-btn-bg, var(--aipn-primary));
    color: var(--aipn-cta-btn-text, #ffffff);
    border: none;
    border-radius: var(--aipn-radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    white-space: nowrap;
}

.aipn-widget__cta-btn:hover {
    background: var(--aipn-primary-hover);
    transform: translateY(-1px);
}

.aipn-widget__cta-btn:active {
    transform: translateY(0);
}

/* === Chat Panel === */
.aipn-widget__panel {
    position: relative;
    background: var(--aipn-bg);
    border: 1px solid var(--aipn-border);
    border-radius: var(--aipn-radius);
    box-shadow: var(--aipn-shadow-lg);
    overflow: hidden;
    animation: aipn-slide-in 0.3s ease;
}

@keyframes aipn-slide-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header */
.aipn-widget__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--aipn-header-bg, var(--aipn-primary));
    color: var(--aipn-header-text, #ffffff);
}

.aipn-widget__header-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 14px;
}

.aipn-widget__header-icon {
    display: flex;
    align-items: center;
}

.aipn-widget__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    cursor: pointer;
    transition: background 0.2s;
}

.aipn-widget__close:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Messages area */
.aipn-widget__messages {
    max-height: 320px;
    min-height: 120px;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scroll-behavior: smooth;
}

/* Individual message */
.aipn-widget__msg {
    display: flex;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.3s, transform 0.3s;
}

.aipn-widget__msg--visible {
    opacity: 1;
    transform: translateY(0);
}

.aipn-widget__msg--user {
    justify-content: flex-end;
}

.aipn-widget__msg--assistant {
    justify-content: flex-start;
}

.aipn-widget__msg--system {
    justify-content: center;
}

.aipn-widget__msg-bubble {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: var(--aipn-bubble-font-size);
    line-height: 1.55;
    word-wrap: break-word;
}

.aipn-widget__msg--user .aipn-widget__msg-bubble {
    background: var(--aipn-msg-user);
    color: var(--aipn-msg-user-text, #ffffff);
    border-bottom-right-radius: 4px;
}

.aipn-widget__msg--assistant .aipn-widget__msg-bubble {
    background: var(--aipn-msg-assistant);
    color: var(--aipn-msg-assistant-text, var(--aipn-text));
    border-bottom-left-radius: 4px;
}

.aipn-widget__msg-bubble strong {
    font-weight: 700;
}

.aipn-widget__msg--system .aipn-widget__msg-bubble {
    background: var(--aipn-msg-system);
    color: #92400e;
    font-size: 12px;
    border-radius: var(--aipn-radius-sm);
}

/* Typing indicator */
.aipn-widget__typing {
    padding: 8px 16px;
}

.aipn-widget__typing[hidden] {
    display: none;
}

.aipn-widget__typing-dots {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    background: var(--aipn-msg-assistant);
    border-radius: 16px;
    border-bottom-left-radius: 4px;
}

.aipn-widget__typing-dots span {
    display: block;
    width: 6px;
    height: 6px;
    background: var(--aipn-text-muted);
    border-radius: 50%;
    animation: aipn-typing-bounce 1.4s infinite ease-in-out;
}

.aipn-widget__typing-dots span:nth-child(1) { animation-delay: 0s; }
.aipn-widget__typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.aipn-widget__typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes aipn-typing-bounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-4px); opacity: 1; }
}

/* Suggestions */
.aipn-widget__suggestions {
    padding: 12px 16px;
    border-top: 1px solid var(--aipn-border);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.aipn-widget__suggestions[hidden] {
    display: none;
}

.aipn-widget__suggestion-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: var(--aipn-surface);
    border: 1px solid var(--aipn-border);
    border-radius: var(--aipn-radius-sm);
}

.aipn-widget__suggestion-img {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
}

.aipn-widget__suggestion-info {
    flex: 1;
    min-width: 0;
}

.aipn-widget__suggestion-name {
    display: block;
    font-size: 13px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-decoration: none;
    color: inherit;
}

a.aipn-widget__suggestion-name:hover {
    color: var(--aipn-primary);
    text-decoration: underline;
}

.aipn-widget__suggestion-price {
    font-size: 12px;
    color: var(--aipn-text-muted);
}

.aipn-widget__suggestion-price del {
    opacity: 0.6;
}

.aipn-widget__suggestion-price strong {
    color: var(--aipn-success);
}

.aipn-widget__suggestion-add {
    padding: 6px 12px;
    background: var(--aipn-primary);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
}

.aipn-widget__suggestion-add:hover {
    background: var(--aipn-primary-hover);
}

.aipn-widget__suggestion-added {
    background: var(--aipn-success) !important;
}

/* Email capture form */
.aipn-widget__email-capture {
    padding: 16px;
    border-top: 1px solid var(--aipn-border);
    background: linear-gradient(135deg, #fffbeb 0%, #fff7ed 100%);
    text-align: center;
    animation: aipn-slide-in 0.3s ease;
}

.aipn-widget__email-capture[hidden] {
    display: none;
}

.aipn-widget__email-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--aipn-primary);
    color: #ffffff;
    margin: 0 auto 10px;
}

.aipn-widget__email-icon svg {
    width: 20px;
    height: 20px;
}

.aipn-widget__email-capture > p {
    margin: 0 0 12px;
    font-size: 13px;
    color: var(--aipn-text);
    font-weight: 500;
    line-height: 1.4;
}

.aipn-widget__email-form {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.aipn-widget__email-form input[type="text"],
.aipn-widget__email-form input[type="email"] {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--aipn-border);
    border-radius: var(--aipn-radius-sm);
    font-family: var(--aipn-font);
    font-size: 13px;
    color: var(--aipn-text);
    background: var(--aipn-bg);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.aipn-widget__email-form input[type="text"]:focus,
.aipn-widget__email-form input[type="email"]:focus {
    border-color: var(--aipn-primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.aipn-widget__email-form input::placeholder {
    color: var(--aipn-text-muted);
}

.aipn-widget__email-form button[type="submit"] {
    padding: 10px 16px;
    background: var(--aipn-primary);
    color: #ffffff;
    border: none;
    border-radius: var(--aipn-radius-sm);
    font-family: var(--aipn-font);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.aipn-widget__email-form button[type="submit"]:hover {
    background: var(--aipn-primary-hover);
    transform: translateY(-1px);
}

.aipn-widget__email-form button[type="submit"]:active {
    transform: translateY(0);
}

/* Deal accepted banner */
.aipn-widget__deal-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: #ecfdf5;
    border-top: 1px solid #a7f3d0;
    animation: aipn-slide-in 0.3s ease;
}

.aipn-widget__deal-banner[hidden] {
    display: none;
}

.aipn-widget__deal-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--aipn-success);
    color: #ffffff;
    flex-shrink: 0;
}

.aipn-widget__deal-text strong {
    display: block;
    color: #065f46;
    font-size: 14px;
}

.aipn-widget__deal-text span {
    color: #047857;
    font-size: 12px;
}

/* Fireworks celebration */
.aipn-fireworks {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 100;
}

.aipn-fireworks__particle {
    position: absolute;
    bottom: 40%;
    left: 50%;
    width: var(--size, 6px);
    height: var(--size, 6px);
    border-radius: 50%;
    opacity: 0;
    animation: aipn-firework-burst 1.2s var(--delay, 0s) ease-out forwards;
}

@keyframes aipn-firework-burst {
    0% {
        opacity: 1;
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    60% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translate(var(--x, 0), var(--y, -100px)) rotate(var(--r, 360deg)) scale(0.2);
    }
}

/* Form — chat-style input row */
.aipn-widget__form {
    padding: 10px 12px;
    border-top: 1px solid var(--aipn-border);
}

.aipn-widget__form-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--aipn-surface);
    border: 1px solid var(--aipn-border);
    border-radius: 24px;
    padding: 4px 4px 4px 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.aipn-widget__form-row:focus-within {
    border-color: var(--aipn-primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.aipn-widget__field {
    flex: 1;
    min-width: 0;
}

.aipn-widget__input {
    border: none;
    background: transparent;
    outline: none;
    box-shadow: none;
    padding: 8px 0;
    width: 100%;
    font-family: var(--aipn-font);
    font-size: calc(var(--aipn-font-size) - 0.5px);
    color: var(--aipn-text);
}

.aipn-widget__input::placeholder {
    color: var(--aipn-text-muted);
}

.aipn-widget__send {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--aipn-send-bg, var(--aipn-primary));
    color: #ffffff;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.2s, opacity 0.2s, transform 0.1s;
}

.aipn-widget__send:hover:not(:disabled) {
    background: var(--aipn-primary-hover);
    transform: scale(1.05);
}

.aipn-widget__send:active:not(:disabled) {
    transform: scale(0.95);
}

.aipn-widget__send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Shake animation */
@keyframes aipn-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    50% { transform: translateX(4px); }
    75% { transform: translateX(-2px); }
}

.aipn-widget__shake {
    animation: aipn-shake 0.4s ease;
}

/* AI notice under the header */
.aipn-widget .aipn-widget__ai-notice {
    margin: 0;
    padding: 7px 16px;
    border-bottom: 1px solid var(--aipn-border);
    color: var(--aipn-text-muted);
    font-size: 11px;
    line-height: 1.4;
    text-align: center;
}

/* === Responsive === */
@media (max-width: 480px) {
    .aipn-widget__cta-content {
        flex-direction: column;
        text-align: center;
    }

    .aipn-widget__cta-btn {
        width: 100%;
        justify-content: center;
    }

    .aipn-widget__messages {
        max-height: 250px;
    }

    .aipn-widget__msg-bubble {
        max-width: 90%;
    }
}

/* Screen reader only */
.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
    word-wrap: normal !important;
}