/* ═══════════════════════════════════════════════════
   BAUDRAUF Chatbot — iOS Glassmorphism Design System
   ═══════════════════════════════════════════════════ */

:root {
    /* Dimensions */
    --bd-w: 400px;
    --bd-h: 680px;

    /* Radii */
    --bd-r-2xl: 36px;
    --bd-r-xl:  26px;
    --bd-r-lg:  20px;
    --bd-r-pill: 9999px;

    /* iOS System Colors */
    --bd-blue:   #007AFF;
    --bd-blue-2: #5AC8FA;
    --bd-purple: #AF52DE;
    --bd-green:  #34C759;
    --bd-red:    #FF3B30;

    /* Text (Light) */
    --bd-text:   #0A0A10;
    --bd-text-2: rgba(10, 10, 16, 0.54);
    --bd-text-3: rgba(10, 10, 16, 0.36);

    /* Shadows */
    --bd-shadow-panel:  0 40px 100px rgba(0,0,0,0.22), 0 12px 36px rgba(0,0,0,0.14), inset 0 1px 0 rgba(255,255,255,0.9);
    --bd-shadow-toggle: 0 12px 40px rgba(0,122,255,0.44), 0 4px 12px rgba(0,122,255,0.2), inset 0 1px 0 rgba(255,255,255,0.5);
    --bd-shadow-bubble: 0 4px 14px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.05);
    --bd-shadow-option: 0 4px 16px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.9);

    /* Spring easing (iOS-accurate) */
    --bd-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);
    --bd-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --bd-ease-io:  cubic-bezier(0.65, 0.05, 0.35, 1);

    /* Typography */
    --bd-font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", Inter, system-ui, sans-serif;
}

/* ─── Reset ─── */
.bd-chatbot,
.bd-chatbot * {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

/* ─── Root container ─── */
.bd-chatbot {
    position: fixed;
    right: 28px;
    bottom: 28px;
    z-index: 999999;
    font-family: var(--bd-font);
    color: var(--bd-text);
}

/* ══════════════════════════════════════
   TOGGLE BUTTON
══════════════════════════════════════ */

.bd-chatbot__toggle {
    position: relative;
    width: 68px;
    height: 68px;
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: 50%;
    cursor: pointer;
    color: #fff;
    display: grid;
    place-items: center;
    background: linear-gradient(145deg, #007AFF 0%, #4DBEFF 46%, #AF52DE 100%);
    box-shadow: var(--bd-shadow-toggle);
    transition: transform 0.34s var(--bd-spring), box-shadow 0.28s ease;
    isolation: isolate;
    overflow: hidden;
}

/* Glass sheen */
.bd-chatbot__toggle::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: radial-gradient(circle at 34% 22%, rgba(255,255,255,0.56) 0%, transparent 52%);
    pointer-events: none;
    z-index: 1;
}

/* Pulse ring — draws attention */
.bd-chatbot__toggle::after {
    content: "";
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    border: 2px solid rgba(0,122,255,0.55);
    animation: bdPulse 2.6s var(--bd-ease-out) infinite;
    animation-delay: 1.6s;
    pointer-events: none;
}

.bd-chatbot__toggle:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 20px 60px rgba(0,122,255,0.5), 0 8px 20px rgba(0,122,255,0.24), inset 0 1px 0 rgba(255,255,255,0.5);
}

.bd-chatbot__toggle:active {
    transform: scale(0.94);
    transition-duration: 0.1s;
}

/* Icon morphing (chat ↔ close) */
.bd-toggle-icon {
    position: absolute;
    transition: opacity 0.26s ease, transform 0.36s var(--bd-spring);
    z-index: 2;
}

.bd-toggle-icon--close {
    opacity: 0;
    transform: rotate(-80deg) scale(0.5);
}

.bd-chatbot.is-open .bd-toggle-icon--chat {
    opacity: 0;
    transform: rotate(80deg) scale(0.5);
}

.bd-chatbot.is-open .bd-toggle-icon--close {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* ══════════════════════════════════════
   PANEL
══════════════════════════════════════ */

.bd-chatbot__panel {
    position: absolute;
    right: 0;
    bottom: 86px;
    width: var(--bd-w);
    height: var(--bd-h);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: var(--bd-r-2xl);
    color: var(--bd-text);

    background: linear-gradient(158deg, rgba(255,255,255,0.88) 0%, rgba(235,244,255,0.74) 100%);
    border: 1px solid rgba(255,255,255,0.66);
    box-shadow: var(--bd-shadow-panel);
    backdrop-filter: blur(48px) saturate(220%);
    -webkit-backdrop-filter: blur(48px) saturate(220%);

    /* Closed state */
    opacity: 0;
    visibility: hidden;
    transform: translateY(22px) scale(0.93);
    transform-origin: bottom right;
    transition:
        opacity 0.38s var(--bd-ease-out),
        visibility 0.38s,
        transform 0.42s var(--bd-spring);
}

/* Ambient color orb — top left (blue) */
.bd-chatbot__panel::before {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    top: -70px;
    left: -70px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,122,255,0.2) 0%, transparent 70%);
    filter: blur(32px);
    pointer-events: none;
    z-index: 0;
}

/* Ambient color orb — top right (purple) */
.bd-chatbot__panel::after {
    content: "";
    position: absolute;
    width: 200px;
    height: 200px;
    top: -20px;
    right: -50px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(175,82,222,0.18) 0%, transparent 70%);
    filter: blur(28px);
    pointer-events: none;
    z-index: 0;
}

/* Open state */
.bd-chatbot.is-open .bd-chatbot__panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* ══════════════════════════════════════
   HEADER
══════════════════════════════════════ */

.bd-chatbot__header {
    position: relative;
    z-index: 2;
    min-height: 78px;
    padding: 15px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    background: rgba(255,255,255,0.46);
    border-bottom: 1px solid rgba(255,255,255,0.56);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
}

.bd-chatbot__brand {
    display: flex;
    align-items: center;
    gap: 13px;
}

.bd-chatbot__avatar {
    position: relative;
    width: 48px;
    height: 48px;
    border-radius: 17px;
    display: grid;
    place-items: center;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #fff;
    flex-shrink: 0;
    background: linear-gradient(145deg, #007AFF 0%, #4DBEFF 55%, #AF52DE 100%);
    box-shadow: 0 8px 22px rgba(0,122,255,0.32), inset 0 1px 0 rgba(255,255,255,0.5);
    overflow: hidden;
}

/* Glass sheen on avatar */
.bd-chatbot__avatar::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 33% 22%, rgba(255,255,255,0.56) 0%, transparent 55%);
    border-radius: inherit;
}

.bd-chatbot__brand-text strong {
    display: block;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.022em;
    color: var(--bd-text);
}

.bd-chatbot__brand-text span {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    font-size: 12.5px;
    color: var(--bd-text-2);
}

.bd-chatbot__status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--bd-green);
    box-shadow: 0 0 0 3px rgba(52,199,89,0.18);
    animation: bdStatusPulse 2.4s ease infinite;
    flex-shrink: 0;
}

.bd-chatbot__close {
    padding: 0;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255,255,255,0.64);
    border-radius: 13px;
    color: var(--bd-text-2);
    cursor: pointer;
    display: grid;
    place-items: center;
    background: rgba(255,255,255,0.64);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.84);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform 0.26s var(--bd-spring), background 0.2s;
}

.bd-chatbot__close:hover {
    transform: scale(1.08);
    background: rgba(255,255,255,0.86);
}

.bd-chatbot__close:active {
    transform: scale(0.92);
}

/* ══════════════════════════════════════
   MESSAGES AREA
══════════════════════════════════════ */

.bd-chatbot__messages {
    flex: 1;
    padding: 18px 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scroll-behavior: smooth;
    position: relative;
    z-index: 1;
}

/* Thin iOS-style scrollbar */
.bd-chatbot__messages::-webkit-scrollbar       { width: 3px; }
.bd-chatbot__messages::-webkit-scrollbar-track { background: transparent; }
.bd-chatbot__messages::-webkit-scrollbar-thumb {
    border-radius: 99px;
    background: rgba(0,0,0,0.14);
}

/* ══════════════════════════════════════
   MESSAGE BUBBLES
══════════════════════════════════════ */

.bd-chatbot__message {
    max-width: 84%;
    animation: bdMsgIn 0.42s var(--bd-spring) both;
}

.bd-chatbot__message--bot  { align-self: flex-start; }
.bd-chatbot__message--user { align-self: flex-end; }

.bd-chatbot__bubble {
    padding: 11px 15px;
    font-size: 14.5px;
    line-height: 1.56;
    letter-spacing: -0.009em;
    word-break: break-word;
    white-space: pre-line;
}

/* Bot bubble — frosted glass */
.bd-chatbot__message--bot .bd-chatbot__bubble {
    background: rgba(255,255,255,0.8);
    border: 1px solid rgba(255,255,255,0.84);
    border-radius: 20px 20px 20px 6px;
    color: var(--bd-text);
    box-shadow: var(--bd-shadow-bubble), inset 0 1px 0 rgba(255,255,255,0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

/* User bubble — iOS blue gradient */
.bd-chatbot__message--user .bd-chatbot__bubble {
    background: linear-gradient(145deg, #007AFF 0%, #38A8FF 100%);
    border-radius: 20px 20px 6px 20px;
    color: #fff;
    box-shadow: 0 8px 24px rgba(0,122,255,0.3), 0 2px 6px rgba(0,122,255,0.15), inset 0 1px 0 rgba(255,255,255,0.24);
}

/* ══════════════════════════════════════
   TYPING INDICATOR
══════════════════════════════════════ */

.bd-chatbot__typing-wrapper {
    align-self: flex-start;
    animation: bdMsgIn 0.32s var(--bd-spring) both;
}

.bd-chatbot__typing {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 14px 18px;
    background: rgba(255,255,255,0.8);
    border: 1px solid rgba(255,255,255,0.84);
    border-radius: 20px 20px 20px 6px;
    box-shadow: var(--bd-shadow-bubble), inset 0 1px 0 rgba(255,255,255,0.92);
    width: fit-content;
}

.bd-chatbot__typing span {
    display: block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: rgba(10,10,16,0.28);
    animation: bdDot 1.35s ease-in-out infinite;
}

.bd-chatbot__typing span:nth-child(2) { animation-delay: 0.17s; }
.bd-chatbot__typing span:nth-child(3) { animation-delay: 0.34s; }

/* ══════════════════════════════════════
   OPTION BUTTONS
══════════════════════════════════════ */

.bd-chatbot__options {
    display: grid;
    gap: 8px;
    margin-top: 4px;
    align-self: flex-start;
    width: 100%;
    max-width: 88%;
}

.bd-chatbot__option {
    width: 100%;
    border: 1px solid rgba(255,255,255,0.7);
    border-radius: 16px;
    padding: 12px 15px;
    cursor: pointer;
    text-align: left;
    color: var(--bd-blue);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--bd-font);
    letter-spacing: -0.01em;
    line-height: 1.4;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    background: rgba(255,255,255,0.62);
    box-shadow: var(--bd-shadow-option);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition:
        transform 0.26s var(--bd-spring),
        background 0.2s,
        box-shadow 0.2s,
        border-color 0.2s;
    animation: bdOptIn 0.4s var(--bd-spring) both;
}

/* Chevron arrow */
.bd-chatbot__option::after {
    content: "";
    display: block;
    width: 7px;
    height: 7px;
    border-top: 1.8px solid rgba(0,122,255,0.5);
    border-right: 1.8px solid rgba(0,122,255,0.5);
    transform: rotate(45deg);
    flex-shrink: 0;
    transition: transform 0.22s var(--bd-ease-out);
}

.bd-chatbot__option:hover {
    transform: translateY(-1px) scale(1.012);
    background: rgba(255,255,255,0.86);
    border-color: rgba(0,122,255,0.16);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.96);
}

.bd-chatbot__option:hover::after {
    transform: rotate(45deg) translate(2px, -2px);
}

.bd-chatbot__option:active {
    transform: scale(0.98);
    transition-duration: 0.1s;
}

.bd-chatbot__option:disabled {
    pointer-events: none;
    opacity: 0.44;
}

/* ══════════════════════════════════════
   CONTACT CARD
══════════════════════════════════════ */

.bd-chatbot__contact-card {
    display: grid;
    gap: 8px;
    margin-top: 10px;
}

.bd-chatbot__contact-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 15px;
    border-radius: 15px;
    color: var(--bd-blue);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    background: rgba(255,255,255,0.72);
    border: 1px solid rgba(255,255,255,0.76);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.9), 0 4px 12px rgba(0,0,0,0.06);
    transition: transform 0.24s var(--bd-spring), background 0.2s;
}

.bd-chatbot__contact-link::after {
    content: "";
    display: block;
    width: 7px;
    height: 7px;
    border-top: 1.8px solid rgba(0,122,255,0.48);
    border-right: 1.8px solid rgba(0,122,255,0.48);
    transform: rotate(45deg);
    flex-shrink: 0;
}

.bd-chatbot__contact-link:hover {
    transform: translateY(-1px) scale(1.012);
    background: rgba(255,255,255,0.9);
}

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */

.bd-chatbot__footer {
    position: relative;
    z-index: 2;
    padding: 12px 16px 16px;
    flex-shrink: 0;
    background: rgba(255,255,255,0.4);
    border-top: 1px solid rgba(255,255,255,0.58);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.bd-chatbot__restart {
    position: relative;
    width: 100%;
    height: 46px;
    border: 1px solid rgba(255,255,255,0.6);
    border-radius: var(--bd-r-pill);
    cursor: pointer;
    color: #fff;
    font-size: 14.5px;
    font-weight: 600;
    letter-spacing: -0.012em;
    font-family: var(--bd-font);
    background: linear-gradient(145deg, #007AFF 0%, #38A8FF 100%);
    box-shadow: 0 8px 26px rgba(0,122,255,0.3), 0 2px 6px rgba(0,122,255,0.14), inset 0 1px 0 rgba(255,255,255,0.3);
    transition: transform 0.26s var(--bd-spring), box-shadow 0.22s;
    overflow: hidden;
}

/* Glass sheen on restart */
.bd-chatbot__restart::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 34% 24%, rgba(255,255,255,0.24) 0%, transparent 55%);
    pointer-events: none;
}

.bd-chatbot__restart:hover {
    transform: translateY(-1px) scale(1.01);
    box-shadow: 0 14px 36px rgba(0,122,255,0.38), 0 4px 10px rgba(0,122,255,0.18), inset 0 1px 0 rgba(255,255,255,0.3);
}

.bd-chatbot__restart:active {
    transform: scale(0.97);
    transition-duration: 0.1s;
}

/* ══════════════════════════════════════
   ERROR STATE
══════════════════════════════════════ */

.bd-chatbot__error {
    color: var(--bd-red);
    font-size: 13.5px;
}

/* ══════════════════════════════════════
   KEYFRAMES
══════════════════════════════════════ */

/* Toggle pulse ring */
@keyframes bdPulse {
    0%        { opacity: 0.75; transform: scale(1); }
    70%, 100% { opacity: 0;    transform: scale(1.62); }
}

/* Online status dot */
@keyframes bdStatusPulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(52,199,89,0.18); }
    50%      { box-shadow: 0 0 0 5px rgba(52,199,89,0.08); }
}

/* Message spring-in */
@keyframes bdMsgIn {
    from { opacity: 0; transform: translateY(16px) scale(0.93); }
    to   { opacity: 1; transform: translateY(0)    scale(1); }
}

/* Option stagger-in */
@keyframes bdOptIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Typing dots bounce */
@keyframes bdDot {
    0%, 60%, 100% { transform: translateY(0);   opacity: 0.3; }
    30%           { transform: translateY(-6px); opacity: 1;   }
}

/* ══════════════════════════════════════
   DARK MODE
══════════════════════════════════════ */

@media (prefers-color-scheme: dark) {
    :root {
        --bd-text:   #F4F4F6;
        --bd-text-2: rgba(244,244,246,0.54);
        --bd-text-3: rgba(244,244,246,0.36);
        --bd-shadow-panel:  0 40px 100px rgba(0,0,0,0.62), 0 12px 36px rgba(0,0,0,0.42), inset 0 1px 0 rgba(255,255,255,0.07);
        --bd-shadow-bubble: 0 4px 14px rgba(0,0,0,0.24), 0 1px 3px rgba(0,0,0,0.14);
        --bd-shadow-option: 0 4px 16px rgba(0,0,0,0.22), inset 0 1px 0 rgba(255,255,255,0.06);
    }

    .bd-chatbot__panel {
        background: linear-gradient(158deg, rgba(26,26,30,0.9) 0%, rgba(16,16,22,0.88) 100%);
        border-color: rgba(255,255,255,0.1);
    }

    .bd-chatbot__header,
    .bd-chatbot__footer {
        background: rgba(255,255,255,0.05);
        border-color: rgba(255,255,255,0.09);
    }

    .bd-chatbot__close {
        color: rgba(244,244,246,0.82);
        background: rgba(255,255,255,0.1);
        border-color: rgba(255,255,255,0.12);
        box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
    }

    .bd-chatbot__message--bot .bd-chatbot__bubble,
    .bd-chatbot__typing {
        background: rgba(44,44,50,0.92);
        border-color: rgba(255,255,255,0.1);
        color: var(--bd-text);
        box-shadow: var(--bd-shadow-bubble), inset 0 1px 0 rgba(255,255,255,0.05);
    }

    .bd-chatbot__typing span {
        background: rgba(244,244,246,0.3);
    }

    .bd-chatbot__option {
        background: rgba(44,44,50,0.9);
        border-color: rgba(255,255,255,0.1);
        color: var(--bd-blue-2);
        box-shadow: var(--bd-shadow-option);
    }

    .bd-chatbot__option::after {
        border-color: rgba(90,200,250,0.52);
    }

    .bd-chatbot__option:hover {
        background: rgba(54,54,62,0.96);
        border-color: rgba(90,200,250,0.18);
        box-shadow: 0 8px 24px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.05);
    }

    .bd-chatbot__contact-link {
        background: rgba(44,44,50,0.9);
        border-color: rgba(255,255,255,0.1);
        color: var(--bd-blue-2);
        box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 4px 12px rgba(0,0,0,0.22);
    }

    .bd-chatbot__contact-link::after {
        border-color: rgba(90,200,250,0.5);
    }

    .bd-chatbot__contact-link:hover {
        background: rgba(54,54,62,0.96);
    }

    .bd-chatbot__messages::-webkit-scrollbar-thumb {
        background: rgba(255,255,255,0.16);
    }
}

/* ══════════════════════════════════════
   MOBILE — bottom sheet style
══════════════════════════════════════ */

@media (max-width: 520px) {
    .bd-chatbot {
        right: 16px;
        bottom: 16px;
        left: 16px;
    }

    .bd-chatbot__toggle {
        margin-left: auto;
    }

    .bd-chatbot__panel {
        right: 0;
        left: 0;
        width: 100%;
        height: 80svh;
        bottom: 86px;
        border-radius: 32px;
        transform-origin: bottom center;
    }
}

/* ══════════════════════════════════════
   REDUCED MOTION
══════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
    .bd-chatbot__panel,
    .bd-chatbot__toggle,
    .bd-chatbot__option,
    .bd-chatbot__contact-link,
    .bd-chatbot__restart,
    .bd-chatbot__message,
    .bd-chatbot__typing-wrapper,
    .bd-chatbot__typing span,
    .bd-chatbot__status-dot {
        animation: none !important;
        transition: none !important;
    }
}