/* ============================================================
   AI Shopping Agent — floating widget
   ============================================================ */

:root {
    --sa-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

.sa-fab {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 460;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 13px 20px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    background-size: 200% 200%;
    color: #fff;
    font-family: var(--font-body, inherit);
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    box-shadow: 0 10px 28px rgba(142, 30, 63, 0.38), 0 0 0 0 rgba(142, 30, 63, 0.35);
    transition: transform 0.25s var(--sa-ease), box-shadow 0.25s var(--sa-ease), background-position 0.6s ease;
    animation: sa-fab-in 0.5s var(--sa-ease), sa-fab-glow 2.6s ease-in-out infinite 1s;
}
.sa-fab:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 16px 36px rgba(142, 30, 63, 0.48); background-position: 100% 50%; }
.sa-fab:active { transform: translateY(-1px) scale(0.98); }
.sa-fab-icon { font-size: 18px; line-height: 1; display: inline-block; animation: sa-icon-bob 2.4s ease-in-out infinite; }
.sa-fab.is-open { display: none; }

@keyframes sa-fab-in {
    from { opacity: 0; transform: translateY(16px) scale(0.9); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes sa-fab-glow {
    0%, 100% { box-shadow: 0 10px 28px rgba(142, 30, 63, 0.38), 0 0 0 0 rgba(142, 30, 63, 0.3); }
    50% { box-shadow: 0 10px 28px rgba(142, 30, 63, 0.38), 0 0 0 10px rgba(142, 30, 63, 0); }
}
@keyframes sa-icon-bob {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-2px) rotate(-6deg); }
}

@media (prefers-reduced-motion: reduce) {
    .sa-fab, .sa-fab-icon { animation: none !important; }
}

@media (max-width: 640px) {
    .sa-fab { bottom: 78px; right: 14px; padding: 12px 14px; }
    .sa-fab-label { display: none; }
}

.sa-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(20, 13, 8, 0.45);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: 470;
    display: none;
    opacity: 0;
    transition: opacity 0.25s ease;
}
.sa-backdrop.open { display: block; }
.sa-backdrop.open.show { opacity: 1; }

.sa-panel {
    position: fixed;
    right: 20px;
    bottom: 24px;
    z-index: 480;
    width: 390px;
    max-width: calc(100vw - 32px);
    height: 580px;
    max-height: calc(100vh - 48px);
    background: var(--surface, #fff);
    border-radius: 22px;
    box-shadow: 0 28px 72px rgba(20, 13, 8, 0.32), 0 4px 16px rgba(20, 13, 8, 0.12);
    display: none;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border);
    opacity: 0;
    transform: translateY(24px) scale(0.96);
    transform-origin: bottom right;
    transition: opacity 0.3s var(--sa-ease), transform 0.35s var(--sa-ease);
}
.sa-panel.open { display: flex; }
.sa-panel.open.show { opacity: 1; transform: translateY(0) scale(1); }

@media (max-width: 640px) {
    .sa-panel {
        right: 0; left: 0; bottom: 0;
        width: 100%; max-width: 100%;
        height: 86vh; max-height: 86vh;
        border-radius: 22px 22px 0 0;
        transform: translateY(100%);
        transform-origin: bottom center;
    }
    .sa-panel.open.show { transform: translateY(0); }
}

.sa-head {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 16px 18px;
    background: linear-gradient(125deg, var(--primary), var(--primary-dark) 60%, var(--gold-deep, var(--primary-dark)));
    color: #fff;
    flex: none;
    overflow: hidden;
}
.sa-head::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(120px 80px at 85% -20%, rgba(255,255,255,0.35), transparent 70%);
    pointer-events: none;
}
.sa-head-title { display: flex; align-items: center; gap: 10px; position: relative; z-index: 1; }
.sa-head-icon { font-size: 23px; display: inline-block; animation: sa-icon-bob 2.4s ease-in-out infinite; }
.sa-head-name { font-weight: 700; font-size: 15.5px; letter-spacing: 0.1px; }
.sa-head-sub { font-size: 12px; opacity: 0.88; margin-top: 2px; }
.sa-close {
    position: relative;
    z-index: 1;
    background: rgba(255,255,255,0.15);
    border: none;
    color: #fff;
    width: 30px; height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    flex: none;
    transition: background 0.15s ease, transform 0.15s ease;
}
.sa-close:hover { background: rgba(255,255,255,0.28); transform: rotate(90deg); }
.sa-new {
    position: relative;
    z-index: 1;
    background: rgba(255,255,255,0.15);
    border: none;
    color: #fff;
    width: 30px; height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 13px;
    line-height: 1;
    flex: none;
    margin-right: 6px;
    transition: background 0.15s ease, transform 0.4s ease;
}
.sa-new:hover { background: rgba(255,255,255,0.28); transform: rotate(180deg); }

.sa-thread {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 14px 12px;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}
.sa-thread::-webkit-scrollbar { width: 6px; }
.sa-thread::-webkit-scrollbar-track { background: transparent; }
.sa-thread::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; }
.sa-thread::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

.sa-msg { display: flex; animation: sa-msg-in 0.32s var(--sa-ease) both; }
.sa-msg-user { justify-content: flex-end; }
.sa-msg-bot { justify-content: flex-start; }

@keyframes sa-msg-in {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
    .sa-msg { animation: none; }
}

.sa-bubble {
    max-width: 88%;
    padding: 10px 13px;
    border-radius: 14px;
    font-size: 13.5px;
    line-height: 1.5;
    box-shadow: 0 1px 2px rgba(20, 13, 8, 0.04);
}
.sa-msg-bot .sa-bubble {
    background: var(--surface, #fff);
    border: 1px solid var(--border);
    color: var(--text);
    border-bottom-left-radius: 4px;
}
.sa-msg-user .sa-bubble {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-bottom-right-radius: 4px;
    box-shadow: 0 4px 12px rgba(142, 30, 63, 0.22);
}

.sa-suggest {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 2px 2px 4px;
}
.sa-chip {
    border: 1px solid var(--border-strong);
    background: var(--surface, #fff);
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 7px 12px;
    font-size: 12.5px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.sa-chip:hover { background: var(--surface-2); border-color: var(--gold); transform: translateY(-1px); box-shadow: 0 4px 10px rgba(20, 13, 8, 0.08); }
.sa-chip:active { transform: translateY(0) scale(0.97); }

/* typing indicator */
.sa-typing { display: inline-flex; gap: 4px; align-items: center; padding: 4px 2px; }
.sa-typing span {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--text-muted);
    animation: sa-blink 1.1s infinite ease-in-out;
}
.sa-typing span:nth-child(2) { animation-delay: 0.15s; }
.sa-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes sa-blink { 0%, 80%, 100% { opacity: 0.25; } 40% { opacity: 1; } }

/* product result cards */
.sa-results {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 100%;
}
.sa-card {
    display: flex;
    gap: 10px;
    background: var(--surface, #fff);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 9px;
    align-items: flex-start;
    transition: transform 0.18s var(--sa-ease), box-shadow 0.18s var(--sa-ease), border-color 0.18s ease;
}
.sa-card:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(20, 13, 8, 0.1); border-color: var(--gold); }
.sa-card-img {
    width: 62px; height: 62px;
    border-radius: 9px;
    object-fit: cover;
    flex: none;
    background: var(--surface-2);
}
.sa-card-body { flex: 1; min-width: 0; }
.sa-card-name {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    display: block;
    line-height: 1.3;
}
.sa-card-name:hover { color: var(--primary); }
.sa-card-meta { display: flex; align-items: baseline; gap: 6px; margin-top: 2px; flex-wrap: wrap; }
.sa-card-price { font-weight: 700; color: var(--primary); font-size: 13px; }
.sa-card-compare { font-size: 11px; color: var(--text-muted); text-decoration: line-through; }
.sa-card-rating { font-size: 11px; color: var(--gold-deep); }
.sa-card-reason {
    font-size: 11.5px;
    color: var(--text-secondary);
    margin-top: 4px;
    line-height: 1.4;
}
.sa-card-actions { margin-top: 6px; display: flex; gap: 6px; }
.sa-card-add {
    border: none;
    background: var(--primary);
    color: #fff;
    font-size: 11.5px;
    font-weight: 600;
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
}
.sa-card-add:hover { background: var(--primary-dark); transform: translateY(-1px); }
.sa-card-add:active { transform: translateY(0) scale(0.96); }
.sa-card-add:disabled { opacity: 0.6; cursor: default; transform: none; }
.sa-card-view {
    border: 1px solid var(--border-strong);
    background: transparent;
    color: var(--text-secondary);
    font-size: 11.5px;
    padding: 6px 10px;
    border-radius: 8px;
    text-decoration: none;
    transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.sa-card-view:hover { border-color: var(--gold); color: var(--gold-deep); transform: translateY(-1px); }

.sa-form {
    flex: none;
    display: flex;
    gap: 8px;
    padding: 10px 12px;
    border-top: 1px solid var(--border);
    background: var(--surface, #fff);
}
.sa-input {
    flex: 1;
    border: 1.5px solid var(--border-strong);
    border-radius: 999px;
    padding: 10px 14px;
    font-size: 13.5px;
    outline: none;
    background: var(--bg);
    color: var(--text);
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.sa-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(142, 30, 63, 0.12); background: var(--surface, #fff); }
.sa-send {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--primary);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    flex: none;
    transition: background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.sa-send:hover:not(:disabled) { background: var(--primary-dark); transform: scale(1.06); box-shadow: 0 6px 16px rgba(142, 30, 63, 0.32); }
.sa-send:active:not(:disabled) { transform: scale(0.94); }
.sa-send:disabled { opacity: 0.6; cursor: default; }

.sa-voice-btn, .sa-photo-btn {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border, #e5e5e5);
    background: #fff;
    font-size: 16px;
    cursor: pointer;
    flex: none;
    transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.sa-voice-btn:hover, .sa-photo-btn:hover { background: #f5f5f5; transform: translateY(-1px); }
.sa-voice-btn:active, .sa-photo-btn:active { transform: translateY(0) scale(0.94); }
.sa-voice-btn.listening {
    background: var(--danger, #e0364e);
    border-color: var(--danger, #e0364e);
    animation: sa-pulse 1s infinite;
}
@keyframes sa-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(224, 54, 78, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(224, 54, 78, 0); }
}
.sa-bubble-photo { padding: 6px; }
.sa-bubble-photo img { max-width: 160px; max-height: 160px; border-radius: 10px; display: block; }

.sa-msg-err .sa-bubble { border-color: var(--danger); color: var(--danger); }


/* ════════════════════════════════════════════════════════════
   PREMIUM AI FAB — sparkle orb + rotating aura + twinkles
   ════════════════════════════════════════════════════════════ */
.sa-fab{overflow:visible!important}
.sa-fab.sa-fab-hot::before{
    content:"";position:absolute;inset:-4px;border-radius:999px;z-index:-1;
    background:conic-gradient(from 0deg,#dc143c,#ffb199,#ffd166,#dc143c);
    filter:blur(9px);opacity:.75;
    animation:bhAura 5s linear infinite;
}
@keyframes bhAura{to{transform:rotate(360deg)}}
.sa-orb{
    position:relative;width:34px;height:34px;border-radius:50%;
    display:grid;place-items:center;flex:0 0 auto;
    background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.38),rgba(255,255,255,.05));
    box-shadow:inset 0 0 12px rgba(255,255,255,.22),0 2px 8px rgba(0,0,0,.18);
}
.sa-orb svg{filter:drop-shadow(0 1px 3px rgba(0,0,0,.35));animation:sa-icon-bob 2.6s ease-in-out infinite}
.sa-tw{
    position:absolute;font-style:normal;color:#ffd166;font-size:11px;line-height:1;
    text-shadow:0 0 6px rgba(255,209,102,.9);pointer-events:none;
    animation:bhTwinkle 2.2s ease-in-out infinite;
}
.sa-tw.t1{top:-7px;right:-5px;animation-delay:.3s}
.sa-tw.t2{bottom:-6px;left:-7px;font-size:9px;animation-delay:1.1s}
@keyframes bhTwinkle{
    0%,100%{opacity:.15;transform:scale(.6) rotate(0)}
    50%{opacity:1;transform:scale(1.15) rotate(40deg)}
}
@media (max-width:767px){.sa-fab .sa-fab-label{display:none}.sa-orb{width:30px;height:30px}}
.lite-fx .sa-fab-hot::before,.lite-fx .sa-tw{animation:none!important;opacity:.6}