/* =====================================================
   DARK STUDIO — AI Chat Widget styles (3-state)
   Loaded site-wide. Self-contained.

   Three states driven by [data-state] on #dark-chat-root:
     · closed     — small circular bubble at bottom-right
     · minimized  — thin header bar only (320×52 strip), conversation hidden
     · open       — full chat panel (340×520)

   Conversation history is preserved across all state transitions.
====================================================== */

#dark-chat-root {
    --dc-bg: #0a0a0a;
    --dc-bg-soft: #121212;
    --dc-bg-deep: #050505;
    --dc-text: #f5f5f5;
    --dc-muted: #8a8a8a;
    --dc-dim: #5a5a5a;
    --dc-border: rgba(255, 255, 255, 0.07);
    --dc-border-strong: rgba(255, 255, 255, 0.15);
    --dc-accent: #E84A0A;
    --dc-accent-bright: #FF6A20;
    --dc-accent-soft: rgba(232, 74, 10, 0.1);

    --dc-font: "Space Grotesk", system-ui, -apple-system, sans-serif;
    --dc-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;

    position: fixed;
    bottom: 22px;
    right: 22px;
    z-index: 9000;
    font-family: var(--dc-font);
}

/* ============== STATE: CLOSED — show bubble, hide panel ============== */
#dark-chat-root[data-state="closed"] .dark-chat-bubble {
    transform: scale(1);
    pointer-events: auto;
    opacity: 1;
}
#dark-chat-root[data-state="closed"] .dark-chat-panel {
    transform: scale(0.92) translateY(20px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

/* ============== STATE: MINIMIZED — header bar only ============== */
#dark-chat-root[data-state="minimized"] .dark-chat-bubble {
    transform: scale(0);
    opacity: 0;
    pointer-events: none;
}
#dark-chat-root[data-state="minimized"] .dark-chat-panel {
    transform: scale(1) translateY(0);
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
    height: auto;       /* auto-shrinks to header */
    min-height: 0;
}
#dark-chat-root[data-state="minimized"] .dark-chat-collapsible {
    max-height: 0;
    opacity: 0;
    pointer-events: none;
}
#dark-chat-root[data-state="minimized"] .dark-chat-header {
    cursor: pointer;
    transition: background 0.2s;
}
#dark-chat-root[data-state="minimized"] .dark-chat-header:hover {
    background: var(--dc-bg-soft);
}
#dark-chat-root[data-state="minimized"] .dark-chat-icon-btn[data-action="minimize"] {
    display: none;
}
#dark-chat-root[data-state="minimized"] .dark-chat-header::after {
    content: '▴';
    margin-left: auto;
    padding-left: 8px;
    color: var(--dc-accent);
    font-size: 0.8rem;
    pointer-events: none;
}
#dark-chat-root[data-state="minimized"] .dark-chat-status-text::after {
    content: ' · click to expand';
    color: var(--dc-muted);
}

/* ============== STATE: OPEN — full panel ============== */
#dark-chat-root[data-state="open"] .dark-chat-bubble {
    transform: scale(0);
    opacity: 0;
    pointer-events: none;
}
#dark-chat-root[data-state="open"] .dark-chat-panel {
    transform: scale(1) translateY(0);
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}
#dark-chat-root[data-state="open"] .dark-chat-collapsible {
    max-height: 480px;
    opacity: 1;
    pointer-events: auto;
}

/* ============== BUBBLE ============== */
.dark-chat-bubble {
    position: relative;
    width: 54px;
    height: 54px;
    padding: 0;
    background: var(--dc-accent);
    color: #fff;
    border: 0;
    border-radius: 50%;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 22px rgba(232, 74, 10, 0.35), 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 0.25s,
                background 0.25s,
                box-shadow 0.25s;
}
.dark-chat-bubble:hover {
    background: var(--dc-accent-bright);
    transform: translateY(-2px) !important;
    box-shadow: 0 12px 28px rgba(232, 74, 10, 0.45), 0 4px 8px rgba(0, 0, 0, 0.4);
}
.dark-chat-bubble:active { transform: translateY(0) !important; }
.dark-chat-bubble svg { width: 22px; height: 22px; flex-shrink: 0; }
.dark-chat-bubble-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: #4ade80;
    border: 2px solid var(--dc-accent);
    border-radius: 50%;
    box-sizing: content-box;
    animation: dc-pulse 2.2s infinite ease-in-out;
}
@keyframes dc-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5); }
    50% { box-shadow: 0 0 0 6px rgba(74, 222, 128, 0); }
}

/* ============== PANEL ============== */
.dark-chat-panel {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 340px;
    max-width: calc(100vw - 28px);
    background: var(--dc-bg);
    color: var(--dc-text);
    border: 1px solid var(--dc-border-strong);
    border-radius: 14px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.6), 0 6px 18px rgba(232, 74, 10, 0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform-origin: bottom right;
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 0.25s,
                visibility 0s 0.3s;  /* delay hiding until anim completes */
}
#dark-chat-root[data-state="open"] .dark-chat-panel,
#dark-chat-root[data-state="minimized"] .dark-chat-panel {
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 0.25s,
                visibility 0s;
}

/* ============== HEADER ============== */
.dark-chat-header {
    background: var(--dc-bg-deep);
    color: #fff;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-bottom: 1px solid var(--dc-border);
    flex-shrink: 0;
    user-select: none;
}
.dark-chat-header-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    flex: 1;
}
.dark-chat-avatar {
    width: 30px;
    height: 30px;
    background: var(--dc-accent);
    color: #fff;
    border-radius: 50%;
    font-family: var(--dc-font);
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.dark-chat-header-meta strong {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--dc-text);
}
.dark-chat-status {
    font-family: var(--dc-mono);
    font-size: 0.58rem;
    color: var(--dc-muted);
    letter-spacing: 0.04em;
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 1px;
}
.dark-chat-status-dot {
    width: 5px;
    height: 5px;
    background: #4ade80;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}
.dark-chat-header-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}
.dark-chat-icon-btn {
    width: 26px;
    height: 26px;
    background: transparent;
    color: var(--dc-muted);
    border: 0;
    border-radius: 6px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}
.dark-chat-icon-btn:hover {
    background: var(--dc-bg-soft);
    color: var(--dc-text);
}
.dark-chat-icon-btn[data-action="close"]:hover { color: var(--dc-accent); }
.dark-chat-icon-btn[data-action="minimize"] { font-size: 1.3rem; font-weight: 700; padding-bottom: 4px; }

/* ============== COLLAPSIBLE (body + actions + form + footer) ============== */
.dark-chat-collapsible {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: max-height 0.32s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 0.2s;
    flex: 1;
}

/* ============== BODY ============== */
.dark-chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 14px 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--dc-bg);
    min-height: 280px;
}
.dark-chat-body::-webkit-scrollbar { width: 4px; }
.dark-chat-body::-webkit-scrollbar-track { background: transparent; }
.dark-chat-body::-webkit-scrollbar-thumb { background: var(--dc-border-strong); border-radius: 2px; }

.dark-chat-greeting {
    padding: 12px 14px;
    border: 1px solid var(--dc-border);
    border-left: 2px solid var(--dc-accent);
    background: var(--dc-bg-soft);
    border-radius: 6px;
}
.dark-chat-greeting h4 {
    font-family: var(--dc-font);
    font-size: 0.88rem;
    font-weight: 600;
    margin: 0 0 6px;
    color: var(--dc-text);
}
.dark-chat-greeting p {
    color: var(--dc-muted);
    font-size: 0.8rem;
    line-height: 1.5;
    margin: 0 0 6px;
}
.dark-chat-greeting p:last-child { margin-bottom: 0; }

.dark-msg {
    max-width: 86%;
    padding: 9px 12px;
    border-radius: 12px;
    font-size: 0.86rem;
    line-height: 1.5;
    word-wrap: break-word;
    animation: dc-msg-in 0.2s ease;
}
@keyframes dc-msg-in {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}
.dark-msg-user {
    align-self: flex-end;
    background: var(--dc-accent);
    color: #fff;
    border-bottom-right-radius: 3px;
}
.dark-msg-bot {
    align-self: flex-start;
    background: var(--dc-bg-soft);
    color: var(--dc-text);
    border: 1px solid var(--dc-border);
    border-bottom-left-radius: 3px;
}
.dark-msg-bot p { margin: 0 0 6px; }
.dark-msg-bot p:last-child { margin-bottom: 0; }
.dark-msg-bot strong { color: var(--dc-accent); font-weight: 600; }
.dark-msg-bot em { color: var(--dc-text); font-style: italic; }
.dark-msg-bot code {
    font-family: var(--dc-mono);
    font-size: 0.8em;
    background: var(--dc-bg-deep);
    padding: 1px 5px;
    border-radius: 3px;
    color: var(--dc-accent);
}
.dark-msg-bot a {
    color: var(--dc-accent);
    text-decoration: underline;
    text-decoration-color: rgba(232, 74, 10, 0.35);
}
.dark-msg-bot a:hover { text-decoration-color: var(--dc-accent); }
.dark-msg-bot ul { margin: 6px 0 6px 16px; padding: 0; }
.dark-msg-bot li { margin-bottom: 3px; color: var(--dc-text); font-size: 0.85rem; }

.dark-chat-typing {
    align-self: flex-start;
    display: flex;
    gap: 3px;
    padding: 10px 12px;
    background: var(--dc-bg-soft);
    border: 1px solid var(--dc-border);
    border-radius: 12px;
    border-bottom-left-radius: 3px;
}
.dark-chat-typing span {
    width: 5px;
    height: 5px;
    background: var(--dc-accent);
    border-radius: 50%;
    animation: dc-bounce 1.1s infinite ease-in-out;
}
.dark-chat-typing span:nth-child(2) { animation-delay: 0.15s; }
.dark-chat-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes dc-bounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
    30% { transform: translateY(-4px); opacity: 1; }
}

/* ============== QUICK ACTIONS ============== */
.dark-chat-actions {
    padding: 8px 10px;
    border-top: 1px solid var(--dc-border);
    background: var(--dc-bg-deep);
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    flex-shrink: 0;
}
.dark-chat-actions button,
.dark-chat-action-cta {
    background: transparent;
    color: var(--dc-muted);
    border: 1px solid var(--dc-border-strong);
    padding: 5px 10px;
    border-radius: 999px;
    font-family: var(--dc-font);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    line-height: 1.4;
}
.dark-chat-actions button:hover,
.dark-chat-action-cta:hover {
    border-color: var(--dc-accent);
    color: var(--dc-accent);
    background: var(--dc-accent-soft);
}
.dark-chat-action-cta {
    background: var(--dc-accent);
    color: #fff;
    border-color: var(--dc-accent);
    font-weight: 600;
}
.dark-chat-action-cta:hover {
    background: var(--dc-accent-bright);
    color: #fff;
    border-color: var(--dc-accent-bright);
}

/* ============== FORM ============== */
.dark-chat-form {
    border-top: 1px solid var(--dc-border);
    padding: 8px 8px 8px 12px;
    display: flex;
    align-items: flex-end;
    gap: 6px;
    background: var(--dc-bg);
    flex-shrink: 0;
}
.dark-chat-input {
    flex: 1;
    background: transparent;
    border: 0;
    color: var(--dc-text);
    font-family: var(--dc-font);
    font-size: 0.85rem;
    resize: none;
    outline: none;
    padding: 6px 0;
    max-height: 96px;
    line-height: 1.4;
}
.dark-chat-input::placeholder { color: var(--dc-dim); font-size: 0.82rem; }
.dark-chat-send {
    width: 32px;
    height: 32px;
    background: var(--dc-accent);
    color: #fff;
    border: 0;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s;
    flex-shrink: 0;
}
.dark-chat-send svg { width: 16px; height: 16px; }
.dark-chat-send:hover:not(:disabled) {
    background: var(--dc-accent-bright);
    transform: scale(1.06);
}
.dark-chat-send:disabled { background: var(--dc-bg-soft); color: var(--dc-dim); cursor: not-allowed; }

/* ============== FOOTER ============== */
.dark-chat-footer {
    padding: 6px 12px 8px;
    border-top: 1px solid var(--dc-border);
    background: var(--dc-bg-deep);
    color: var(--dc-dim);
    font-family: var(--dc-mono);
    font-size: 0.6rem;
    text-align: center;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}
.dark-chat-footer a { color: var(--dc-muted); text-decoration: none; }
.dark-chat-footer a:hover { color: var(--dc-accent); }

/* ============== MOBILE ============== */
@media (max-width: 540px) {
    #dark-chat-root {
        bottom: max(14px, env(safe-area-inset-bottom));
        right: max(14px, env(safe-area-inset-right));
    }
    .dark-chat-bubble { width: 52px; height: 52px; }
    .dark-chat-bubble svg { width: 22px; height: 22px; }
    .dark-chat-panel {
        right: 0;
        bottom: 0;
        width: min(calc(100vw - 28px), 360px);
    }
    #dark-chat-root[data-state="open"] .dark-chat-panel {
        height: min(560px, calc(100vh - 100px));
        max-height: 75vh;
    }
    #dark-chat-root[data-state="open"] .dark-chat-collapsible {
        max-height: min(440px, calc(100vh - 200px));
    }
}

/* Extra-small phones — keep panel inside viewport with margin */
@media (max-width: 380px) {
    .dark-chat-panel {
        width: calc(100vw - 24px);
    }
    #dark-chat-root[data-state="open"] .dark-chat-panel {
        height: min(520px, calc(100vh - 90px));
    }
}

/* Reduce motion support */
@media (prefers-reduced-motion: reduce) {
    .dark-chat-bubble,
    .dark-chat-panel,
    .dark-chat-collapsible,
    .dark-chat-send,
    .dark-msg,
    .dark-chat-typing span,
    .dark-chat-bubble-dot {
        animation: none !important;
        transition: none !important;
    }
}