:root {
    --support-shadow: 0 20px 50px rgba(15, 23, 42, 0.18);
    --support-border: rgba(148, 163, 184, 0.24);
    --support-text: #0f172a;
    --support-muted: #64748b;
    --support-primary: #0f766e;
    --support-primary-2: #14b8a6;
    --support-primary-3: #0ea5e9;
}
.hidden { display: none !important; }
.support-widget { position: fixed; right: 18px; bottom: 18px; z-index: 99999; font-family: Inter, Arial, sans-serif; }
.support-toggle { position: relative; width: 68px; height: 68px; border: 0; border-radius: 999px; cursor: pointer; background: linear-gradient(135deg, var(--support-primary), var(--support-primary-2) 60%, var(--support-primary-3)); box-shadow: 0 20px 36px rgba(13,148,136,.28); color: #fff; }
.support-toggle.hidden-by-panel { display: none !important; }
.support-toggle-icon { position: relative; z-index: 2; display: inline-flex; width: 26px; height: 26px; }
.support-toggle-icon svg { width: 100%; height: 100%; }
.support-toggle-rings, .support-toggle-rings::before, .support-toggle-rings::after { content: ''; position: absolute; inset: 0; border-radius: inherit; border: 1px solid rgba(255,255,255,.25); }
.support-toggle-rings::before { transform: scale(1.16); opacity: .35; }
.support-toggle-rings::after { transform: scale(1.28); opacity: .16; }
.support-panel { position: absolute; right: 0; bottom: 10px; width: 410px; max-width: calc(100vw - 24px); height: 690px; max-height: calc(100vh - 24px); background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.98)); border: 1px solid rgba(255,255,255,.75); border-radius: 28px; box-shadow: var(--support-shadow); overflow: hidden; display: flex; flex-direction: column; backdrop-filter: blur(18px); }
.support-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 18px 16px; color: #fff; background: linear-gradient(135deg, #0f172a, #134e4a 50%, #0f766e 82%, #0ea5e9); }
.support-header-title-wrap { display: flex; align-items: center; gap: 12px; }
.support-header-title-wrap strong { display: block; font-size: 15px; line-height: 1.2; }
.support-header-subtitle { margin-top: 3px; font-size: 12px; color: rgba(255,255,255,.8); }
.support-header-dot { width: 12px; height: 12px; border-radius: 999px; }
.support-header-dot.is-neutral { background: #93c5fd; box-shadow: 0 0 0 5px rgba(147,197,253,.18); }
.support-mini-btn { border: 0; width: 38px; height: 38px; border-radius: 999px; background: rgba(255,255,255,.12); color: #fff; font-size: 24px; line-height: 1; cursor: pointer; }
.support-body, .support-chat { padding: 16px; display: flex; flex-direction: column; gap: 12px; flex: 1; min-height: 0; overflow: auto; }
.support-chat { position: relative; }
.support-intro-card, .support-escalation-card, .support-topic-detail-card { padding: 14px 14px 15px; border-radius: 18px; border: 1px solid rgba(15,23,42,.08); background: linear-gradient(180deg, #eff6ff, #f8fafc); }
.support-intro-title, .support-topic-detail-title { font-size: 14px; font-weight: 800; color: var(--support-text); }
.support-intro-text, .support-topic-detail-text, .support-modal-text { margin-top: 6px; font-size: 12px; line-height: 1.6; color: var(--support-muted); }
.support-breadcrumb { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; padding: 2px 0 4px; }
.support-crumb { border: 0; background: transparent; color: var(--support-primary); cursor: pointer; font-size: 12px; font-weight: 700; padding: 0; }
.support-crumb-sep { color: #94a3b8; font-size: 11px; }
.support-topic-list { display: flex; flex-direction: column; gap: 10px; overflow: auto; padding-right: 2px; }
.support-topic-btn { border: 1px solid var(--support-border); background: linear-gradient(180deg,#fff,#f8fafc); border-radius: 18px; padding: 14px; text-align: left; display: flex; align-items: center; justify-content: space-between; gap: 14px; cursor: pointer; transition: .18s ease; }
.support-topic-btn:hover { transform: translateY(-1px); box-shadow: 0 16px 30px rgba(15,23,42,.08); border-color: rgba(20,184,166,.25); }
.support-topic-btn-text { display: flex; flex-direction: column; gap: 5px; }
.support-topic-btn-text strong { font-size: 14px; color: var(--support-text); }
.support-topic-btn-text small { font-size: 12px; color: var(--support-muted); }
.support-topic-btn-icon { font-size: 24px; color: #94a3b8; line-height: 1; }
.support-topic-detail, .support-escalation, .support-feedback { display: flex; flex-direction: column; gap: 12px; }
.support-topic-actions, .support-feedback-actions, .support-modal-actions, .support-chat-end-row { display: flex; gap: 10px; flex-wrap: wrap; }
.support-primary-btn, .support-secondary-btn, .support-end-btn { border: 0; border-radius: 16px; min-height: 48px; padding: 12px 14px; cursor: pointer; font-weight: 800; letter-spacing: .15px; }
.support-primary-btn { background: linear-gradient(135deg, var(--support-primary), var(--support-primary-2) 55%, var(--support-primary-3)); color: #fff; box-shadow: 0 14px 30px rgba(13,148,136,.22); }
.support-secondary-btn { background: #e2e8f0; color: #0f172a; }
.support-end-btn { background: #fff1f2; color: #be123c; border: 1px solid #fecdd3; }
.support-start-form, .support-message-form { display: flex; flex-direction: column; gap: 10px; }
.support-contact-grid { display: grid; gap: 10px; }
.support-contact-grid input, .support-body textarea, .support-message-form textarea, .support-start-form textarea { width: 100%; border: 1px solid var(--support-border); background: rgba(255,255,255,.94); color: var(--support-text); border-radius: 16px; padding: 13px 14px; font-size: 14px; resize: none; box-sizing: border-box; outline: none; transition: border-color .18s ease, box-shadow .18s ease; }
.support-body textarea, .support-message-form textarea, .support-start-form textarea { min-height: 108px; }
.support-contact-grid input:focus, .support-body textarea:focus, .support-message-form textarea:focus, .support-start-form textarea:focus { border-color: rgba(20,184,166,.36); box-shadow: 0 0 0 4px rgba(20,184,166,.10); }
.support-stars { display: flex; gap: 6px; margin-top: 6px; }
.support-star-btn { border: 0; background: transparent; font-size: 32px; line-height: 1; color: #d4d4d8; cursor: pointer; padding: 0 2px; }
.support-star-btn.is-active { color: #facc15; }
.support-rating-text { font-size: 13px; color: #64748b; margin-top: 4px; }
.support-empty-state { padding: 16px; border: 1px dashed rgba(148,163,184,.4); border-radius: 16px; text-align: center; color: var(--support-muted); font-size: 13px; }
.support-chat-status-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 0 2px 2px; }
.support-state-pill { display: inline-flex; align-items: center; justify-content: center; min-height: 32px; padding: 7px 12px; border-radius: 999px; font-size: 11px; font-weight: 800; letter-spacing: .2px; }
.support-state-pill.is-neutral { background: #dbeafe; color: #1d4ed8; }
.support-state-pill.is-live { background: #dcfce7; color: #166534; }
.support-state-pill.is-offline { background: #fff7ed; color: #c2410c; }
.support-chat-meta { font-size: 12px; color: var(--support-muted); }
.support-messages { flex: 1; min-height: 0; overflow-y: auto; display: flex; flex-direction: column; gap: 12px; padding: 4px 4px 2px 2px; }
.support-message { position: relative; padding: 12px 14px 11px; border-radius: 20px; max-width: 88%; box-shadow: 0 8px 18px rgba(15,23,42,.06); border: 1px solid rgba(15,23,42,.04); }
.support-message.visitor { align-self: flex-end; color: #fff; background: linear-gradient(135deg, var(--support-primary), var(--support-primary-2) 55%, var(--support-primary-3)); border-bottom-right-radius: 8px; }
.support-message.agent, .support-message.system { align-self: flex-start; color: var(--support-text); background: linear-gradient(180deg,#fff,#f8fafc); border-bottom-left-radius: 8px; }
.support-message.system { background: linear-gradient(180deg,#fff7ed,#fffbeb); color: #9a3412; }
.support-message-name { font-size: 11px; font-weight: 800; letter-spacing: .2px; margin-bottom: 6px; opacity: .9; }
.support-message-text { font-size: 14px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.support-message-date { margin-top: 8px; font-size: 11px; opacity: .74; }
.support-typing { display: flex; align-items: center; gap: 10px; padding: 0 4px 2px; color: var(--support-muted); font-size: 12px; font-weight: 600; }
.support-typing-bubble { display: inline-flex; align-items: center; gap: 4px; padding: 10px 12px; border-radius: 999px; background: #eef2ff; }
.support-typing-bubble span { width: 7px; height: 7px; border-radius: 999px; background: #64748b; opacity: .45; animation: supportTyping 1.15s infinite ease-in-out; }
.support-typing-bubble span:nth-child(2) { animation-delay: .15s; }
.support-typing-bubble span:nth-child(3) { animation-delay: .3s; }
.support-modal { position: absolute; inset: 0; background: rgba(15,23,42,.45); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 40; }
.support-modal-card { width: calc(100% - 8px); max-width: 100%; background: #fff; border-radius: 24px; padding: 20px; box-shadow: 0 28px 60px rgba(15,23,42,.22); }
.support-modal-title { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
@keyframes supportTyping { 0%,80%,100% { transform: translateY(0); opacity: .35; } 40% { transform: translateY(-4px); opacity: 1; } }
@media (max-width: 768px) {
    .support-widget { right: 12px; bottom: 12px; }
    .support-toggle { width: 62px; height: 62px; }
    .support-panel { position: fixed; right: 10px; left: 10px; bottom: 10px; width: auto; height: min(82vh, 720px); max-width: none; border-radius: 24px; }
    .support-chat-status-bar, .support-topic-actions, .support-feedback-actions, .support-modal-actions, .support-chat-end-row { flex-direction: column; align-items: stretch; }
    .support-message { max-width: 92%; }
}