/* ================================================================
   EkolChatbot Widget – Embeddable Styles
   Served via: /ekolchatbot/assets/widget.css
   ================================================================ */

/* ── CSS Custom Properties (defaults – overridden by config) ──── */
:root {
    --ecb-accent: #6366f1;
    --ecb-glow: #818cf8;
    --ecb-bg-dark: #0a0a12;
    --ecb-bg-header: #0d0d16;
    --ecb-bg-card: #141420;
    --ecb-bg-input: #1a1a2e;
    --ecb-border: rgba(255, 255, 255, 0.08);
    --ecb-text-primary: #ffffff;
    --ecb-text-secondary: #d1d5db;
    --ecb-text-muted: #9ca3af;
    --ecb-text-placeholder: #6b7280;
    --ecb-success: #34d399;
    --ecb-error: #f87171;
    --ecb-shadow-accent: rgba(99, 102, 241, 0.4);
    --ecb-shadow-glow: rgba(99, 102, 241, 0.15);
    --ecb-shadow-glow-strong: rgba(99, 102, 241, 0.6);
}

/* ── Animations ───────────────────────────────────────────────── */
@keyframes ecb-slide-up {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes ecb-bounce {
    0%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-6px);
    }
}

@keyframes ecb-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes ecb-message-appear {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Widget Root – style isolation from host page ────────────── */
#ekolchatbot-widget-root,
#ekolchatbot-widget-root *,
#ekolchatbot-widget-root *::before,
#ekolchatbot-widget-root *::after {
    box-sizing: border-box;
}

#ekolchatbot-widget-root {
    color: var(--ecb-text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Chat Bubble (FAB) ────────────────────────────────────────── */
#ecb-bubble {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 9999;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ecb-accent), var(--ecb-glow));
    box-shadow: 0 0 25px var(--ecb-shadow-accent);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease-out;
    padding: 0;
}

#ecb-bubble:hover {
    box-shadow: 0 0 40px var(--ecb-shadow-glow-strong);
    transform: scale(1.1);
}

#ecb-bubble svg {
    width: 24px;
    height: 24px;
    color: var(--ecb-text-primary);
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

#ecb-bubble .ecb-icon-close {
    display: none;
}

#ecb-bubble.ecb-open .ecb-icon-open {
    display: none;
}

#ecb-bubble.ecb-open .ecb-icon-close {
    display: block;
}

/* ── Unread Badge ─────────────────────────────────────────────── */
#ecb-unread-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    background: #ef4444;
    color: var(--ecb-text-primary);
    font-size: 11px;
    font-weight: 700;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

#ecb-unread-badge.ecb-visible {
    display: flex;
}

/* ── Invite Bubble ────────────────────────────────────────────── */
#ecb-invite {
    position: fixed;
    bottom: 96px;
    left: 24px;
    z-index: 9999;
    display: none;
    animation: ecb-slide-up 0.3s ease-out;
}

#ecb-invite.ecb-visible {
    display: block;
}

.ecb-invite-card {
    position: relative;
    background: rgba(10, 10, 18, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--ecb-border);
    border-radius: 16px 16px 16px 6px;
    padding: 12px 16px;
    box-shadow: 0 0 30px var(--ecb-shadow-glow);
    max-width: 260px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.ecb-invite-card:hover {
    border-color: color-mix(in srgb, var(--ecb-accent) 50%, transparent);
}

#ecb-invite-close {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--ecb-bg-dark);
    border: 1px solid var(--ecb-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ecb-text-muted);
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}

#ecb-invite-close:hover {
    color: var(--ecb-text-primary);
    border-color: var(--ecb-accent);
}

.ecb-invite-body {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.ecb-invite-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ecb-accent), var(--ecb-glow));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.ecb-invite-avatar svg {
    width: 16px;
    height: 16px;
    color: var(--ecb-text-primary);
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

#ecb-invite-text {
    font-size: 14px;
    color: var(--ecb-text-secondary);
    line-height: 1.5;
    margin: 0;
}

.ecb-invite-cta {
    font-size: 12px;
    color: var(--ecb-accent);
    margin-top: 4px;
    display: block;
}

.ecb-invite-card:hover .ecb-invite-cta {
    text-decoration: underline;
}

/* ── Chat Window ──────────────────────────────────────────────── */
#ecb-window {
    position: fixed;
    bottom: 96px;
    left: 24px;
    z-index: 9999;
    width: 380px;
    height: 520px;
    max-height: 80vh;
    background: var(--ecb-bg-dark);
    border: 1px solid var(--ecb-border);
    border-radius: 16px;
    overflow: hidden;
    display: none;
    flex-direction: column;
    box-shadow: 0 0 50px var(--ecb-shadow-glow);
    animation: ecb-slide-up 0.3s ease-out;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

#ecb-window.ecb-visible {
    display: flex;
}

/* Mobile full-screen */
@media (max-width: 639px) {
    #ecb-window {
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }
}

/* ── Header ───────────────────────────────────────────────────── */
.ecb-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--ecb-bg-header);
    border-bottom: 1px solid var(--ecb-border);
    flex-shrink: 0;
}

.ecb-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ecb-header-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ecb-accent), var(--ecb-glow));
    display: flex;
    align-items: center;
    justify-content: center;
}

.ecb-header-avatar svg {
    width: 20px;
    height: 20px;
    color: var(--ecb-text-primary);
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

.ecb-header-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--ecb-text-primary);
    margin: 0;
}

.ecb-header-status {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ecb-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ecb-success);
    animation: ecb-pulse 2s ease-in-out infinite;
}

.ecb-status-text {
    font-size: 12px;
    color: var(--ecb-text-muted);
}

#ecb-minimize {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: var(--ecb-text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}

#ecb-minimize:hover {
    color: var(--ecb-text-primary);
    background: rgba(255, 255, 255, 0.1);
}

#ecb-minimize svg {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

/* ── Language Selection Screen ────────────────────────────────── */
#ecb-lang-select {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    gap: 24px;
}

#ecb-lang-select.ecb-hidden {
    display: none;
}

.ecb-lang-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ecb-accent), var(--ecb-glow));
    display: flex;
    align-items: center;
    justify-content: center;
}

.ecb-lang-icon svg {
    width: 32px;
    height: 32px;
    color: var(--ecb-text-primary);
    fill: none;
    stroke: currentColor;
    stroke-width: 1.5;
}

.ecb-lang-title {
    text-align: center;
}

.ecb-lang-title h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ecb-text-primary);
    margin: 0 0 8px 0;
}

.ecb-lang-title p {
    font-size: 14px;
    color: var(--ecb-text-muted);
    margin: 0;
}

.ecb-recaptcha-container {
    display: flex;
    justify-content: center;
    width: 100%;
}

#ecb-recaptcha-error {
    display: none;
    font-size: 12px;
    color: var(--ecb-error);
    text-align: center;
}

#ecb-recaptcha-error.ecb-visible {
    display: block;
}

.ecb-lang-buttons {
    display: flex;
    gap: 12px;
    width: 100%;
    max-width: 280px;
}

.ecb-lang-btn {
    flex: 1;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--ecb-border);
    background: var(--ecb-bg-card);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.ecb-lang-btn:hover {
    background: var(--ecb-bg-input);
    border-color: var(--ecb-accent);
}

.ecb-lang-btn .ecb-flag {
    font-size: 24px;
    display: block;
    margin-bottom: 4px;
    color: var(--ecb-text-primary);
}

.ecb-lang-btn .ecb-lang-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--ecb-text-secondary);
}

.ecb-lang-btn:hover .ecb-lang-name {
    color: var(--ecb-text-primary);
}

/* Start Chat button (reCAPTCHA verification screen) */
.ecb-start-btn {
    background: linear-gradient(to right, var(--ecb-accent), var(--ecb-glow));
    border-color: transparent;
    cursor: pointer;
}

.ecb-start-btn .ecb-lang-name {
    color: var(--ecb-text-primary);
    font-weight: 600;
}

.ecb-start-btn:hover {
    box-shadow: 0 0 20px var(--ecb-shadow-accent);
    border-color: transparent;
}

.ecb-start-btn:hover .ecb-lang-name {
    color: var(--ecb-text-primary);
}

/* ── Messages Area ────────────────────────────────────────────── */
#ecb-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: none;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

#ecb-messages.ecb-visible {
    display: flex;
}

/* Scrollbar styling */
#ecb-messages::-webkit-scrollbar {
    width: 4px;
}

#ecb-messages::-webkit-scrollbar-track {
    background: transparent;
}

#ecb-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

#ecb-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ── Message Bubbles ──────────────────────────────────────────── */
.ecb-msg-row {
    display: flex;
    animation: ecb-message-appear 0.3s ease-out;
}

.ecb-msg-row.ecb-user {
    justify-content: flex-end;
}

.ecb-msg-row.ecb-bot {
    justify-content: flex-start;
}

.ecb-msg-bubble {
    max-width: 80%;
    padding: 10px 16px;
    font-size: 14px;
    line-height: 1.6;
    word-break: break-word;
}

.ecb-msg-row.ecb-user .ecb-msg-bubble {
    background: linear-gradient(to right, var(--ecb-accent), var(--ecb-glow));
    color: var(--ecb-text-primary);
    border-radius: 16px 16px 6px 16px;
}

.ecb-msg-row.ecb-bot .ecb-msg-bubble {
    background: var(--ecb-bg-card);
    border: 1px solid var(--ecb-border);
    color: var(--ecb-text-secondary);
    border-radius: 16px 16px 16px 6px;
}

.ecb-msg-bubble strong {
    font-weight: 600;
    color: var(--ecb-text-primary);
}

.ecb-msg-bubble .ecb-list-item {
    display: flex;
    gap: 6px;
}

.ecb-msg-bubble .ecb-list-bullet {
    color: var(--ecb-accent);
}

/* ── Typing Indicator ─────────────────────────────────────────── */
#ecb-typing {
    display: none;
    padding: 0 16px 8px;
}

#ecb-typing.ecb-visible {
    display: block;
}

.ecb-typing-dots {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 10px 16px;
    background: var(--ecb-bg-card);
    border: 1px solid var(--ecb-border);
    border-radius: 16px 16px 16px 6px;
}

.ecb-typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--ecb-text-muted);
    border-radius: 50%;
    animation: ecb-bounce 1.4s ease-in-out infinite;
}

.ecb-typing-dots span:nth-child(2) {
    animation-delay: 150ms;
}

.ecb-typing-dots span:nth-child(3) {
    animation-delay: 300ms;
}

/* ── Input Area ───────────────────────────────────────────────── */
#ecb-input-area {
    padding: 12px 16px;
    background: var(--ecb-bg-header);
    border-top: 1px solid var(--ecb-border);
    flex-shrink: 0;
    display: none;
}

#ecb-input-area.ecb-visible {
    display: block;
}

.ecb-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

#ecb-input {
    flex: 1;
    background: var(--ecb-bg-input);
    border: 1px solid var(--ecb-border);
    border-radius: 12px;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--ecb-text-primary);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: inherit;
}

#ecb-input::placeholder {
    color: var(--ecb-text-placeholder);
}

#ecb-input:focus {
    border-color: color-mix(in srgb, var(--ecb-accent) 50%, transparent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ecb-accent) 30%, transparent);
}

#ecb-send {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(to right, var(--ecb-accent), var(--ecb-glow));
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ecb-text-primary);
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    padding: 0;
}

#ecb-send:hover {
    box-shadow: 0 0 20px var(--ecb-shadow-accent);
}

#ecb-send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    box-shadow: none;
}

#ecb-send svg {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

#ecb-error {
    display: none;
    margin-top: 8px;
    font-size: 12px;
    color: var(--ecb-error);
    text-align: center;
}

#ecb-error.ecb-visible {
    display: block;
}

/* ── Contact Form ─────────────────────────────────────────────── */
.ecb-contact-form {
    max-width: 90%;
    padding: 12px 16px;
    background: var(--ecb-bg-card);
    border: 1px solid var(--ecb-border);
    border-radius: 16px 16px 16px 6px;
}

.ecb-contact-form p {
    font-size: 14px;
    color: var(--ecb-text-secondary);
    margin: 0 0 12px 0;
}

.ecb-contact-form input {
    width: 100%;
    background: var(--ecb-bg-input);
    border: 1px solid var(--ecb-border);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--ecb-text-primary);
    outline: none;
    margin-bottom: 8px;
    box-sizing: border-box;
    font-family: inherit;
    transition: border-color 0.2s;
}

.ecb-contact-form input::placeholder {
    color: var(--ecb-text-placeholder);
}

.ecb-contact-form input:focus {
    border-color: color-mix(in srgb, var(--ecb-accent) 50%, transparent);
}

.ecb-contact-form button {
    width: 100%;
    padding: 8px;
    border-radius: 8px;
    background: linear-gradient(to right, var(--ecb-accent), var(--ecb-glow));
    color: var(--ecb-text-primary);
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 4px;
}

.ecb-contact-form button:hover {
    box-shadow: 0 0 20px var(--ecb-shadow-accent);
}

.ecb-contact-thanks {
    font-size: 14px;
    color: var(--ecb-success);
    padding: 8px 0;
    margin: 0;
}

/* ── Powered-by footer (optional) ─────────────────────────────── */
.ecb-powered-by {
    text-align: center;
    padding: 4px 0 8px;
    font-size: 10px;
    color: var(--ecb-text-placeholder);
    background: var(--ecb-bg-header);
}

.ecb-powered-by a {
    color: var(--ecb-accent);
    text-decoration: none;
}

.ecb-powered-by a:hover {
    text-decoration: underline;
}