/* ===== AI Support Chat Widget =====
   Matches the Signalique design system: deep navy, glass surfaces,
   sky-blue gradients, subtle glows, Inter/Space Grotesk fonts. */

.ai-support-widget {
    position: fixed;
    bottom: 1.25rem;
    right: 1.25rem;
    z-index: 9990;
    font-family: var(--font-family-base);
}

/* Toggle button — matches .btn-primary / .cta-btn gradient style */
.ai-support-toggle {
    width: 3.1rem;
    height: 3.1rem;
    border-radius: 50%;
    border: 0;
    outline: none;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    cursor: pointer;
    box-shadow: 0 10px 22px rgba(91, 140, 255, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow var(--transition-base), filter var(--transition-base);
    -webkit-tap-highlight-color: transparent;
    margin-left: auto;
    overflow: hidden;
}

.ai-support-toggle:hover {
    transform: none;
    box-shadow: 0 14px 28px rgba(91, 140, 255, 0.22);
    filter: brightness(1.05);
}

.ai-support-toggle:focus-visible {
    box-shadow: 0 10px 22px rgba(91, 140, 255, 0.18), 0 0 0 2px rgba(96, 165, 250, 0.45);
}

.ai-support-toggle:active {
    transform: none;
    filter: brightness(0.97);
}

.ai-support-toggle svg {
    width: 1.4rem;
    height: 1.4rem;
}

/* Chat window — glass card style matching site surfaces */
.ai-support-window {
    display: none;
    position: absolute;
    bottom: 4.2rem;
    right: 0;
    width: 370px;
    max-width: calc(100vw - 2.5rem);
    height: 520px;
    max-height: calc(100vh - 200px);
    background: var(--color-surface-1);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    overflow: hidden;
    animation: aiSupportSlideUp 0.22s ease-out;
}

@keyframes aiSupportSlideUp {
    from { opacity: 0; transform: translateY(8px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.ai-support-window--open {
    display: flex;
}

/* Header — matches site header/nav style */
.ai-support-header {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-2);
    flex-shrink: 0;
}

.ai-support-header__icon {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(91, 140, 255, 0.15);
}

.ai-support-header__icon svg {
    width: 1.15rem;
    height: 1.15rem;
    color: #fff;
}

.ai-support-header__info {
    flex: 1;
    min-width: 0;
}

.ai-support-header__title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    line-height: 1.25;
    font-family: var(--font-family-display);
    letter-spacing: var(--letter-spacing-tight);
}

.ai-support-header__status {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    line-height: 1.25;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.ai-support-header__status::before {
    content: '';
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 6px rgba(34, 197, 94, 0.5);
}

.ai-support-header__close {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-base), color var(--transition-base);
    flex-shrink: 0;
}

.ai-support-header__close:hover {
    background: rgba(148, 163, 184, 0.08);
    color: var(--color-text);
}

.ai-support-header__reset {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-base), color var(--transition-base);
    flex-shrink: 0;
    margin-left: 0.15rem;
}

.ai-support-header__reset:hover {
    background: rgba(239, 68, 68, 0.08);
    color: #f87171;
}

/* Messages area */
.ai-support-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    scroll-behavior: smooth;
}

.ai-support-messages::-webkit-scrollbar {
    width: 4px;
}

.ai-support-messages::-webkit-scrollbar-track {
    background: transparent;
}

.ai-support-messages::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

/* Message bubbles */
.ai-support-message {
    max-width: 82%;
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
    word-break: break-word;
    animation: aiSupportMsgIn 0.2s ease-out;
}

@keyframes aiSupportMsgIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.ai-support-message--bot,
.ai-support-message--assistant {
    align-self: flex-start;
    background: var(--color-surface-2);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-bottom-left-radius: var(--radius-sm);
}

/* Normalize paragraph styling inside message bubbles */
.ai-support-message p {
    margin: 0;
    color: inherit;
    font: inherit;
}
.ai-support-message p + p {
    margin-top: 0.4em;
}

.ai-support-message--user {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    border-bottom-right-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(91, 140, 255, 0.12);
}

.ai-support-message--error {
    align-self: flex-start;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border-bottom-left-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
}

/* Typing indicator */
.ai-support-typing {
    display: none;
    align-self: flex-start;
    padding: 0.65rem 1rem;
    border-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-sm);
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    gap: 4px;
}

.ai-support-typing--visible {
    display: flex;
    align-items: center;
    margin-top: 0.25rem;
}

.ai-support-typing__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-text-muted);
    animation: aiSupportBounce 1.4s infinite ease-in-out;
}

.ai-support-typing__dot:nth-child(1) { animation-delay: 0s; }
.ai-support-typing__dot:nth-child(2) { animation-delay: 0.18s; }
.ai-support-typing__dot:nth-child(3) { animation-delay: 0.36s; }

@keyframes aiSupportBounce {
    0%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-5px); }
}

/* Input area */
.ai-support-input-area {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-1);
    flex-shrink: 0;
}

.ai-support-input {
    flex: 1;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.85rem;
    font-size: var(--font-size-sm);
    background: var(--color-bg);
    color: var(--color-text);
    outline: none;
    font-family: inherit;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.ai-support-input:focus {
    border-color: var(--color-border-strong);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.12);
}

.ai-support-input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.7;
}

.ai-support-input:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

/* Send button — matches btn-primary gradient */
.ai-support-send {
    width: 2.65rem;
    height: 2.65rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(96, 165, 250, 0.28);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);
    flex-shrink: 0;
    box-shadow: 0 8px 16px rgba(91, 140, 255, 0.14);
}

.ai-support-send:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(91, 140, 255, 0.2);
}

.ai-support-send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    box-shadow: none;
}

.ai-support-send svg {
    width: 1rem;
    height: 1rem;
}

/* WhatsApp support link — subtle green accent */
.ai-support-whatsapp {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.65rem 1rem;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: #4ade80;
    text-decoration: none;
    background: rgba(34, 197, 94, 0.05);
    border-top: 1px solid rgba(34, 197, 94, 0.12);
    flex-shrink: 0;
    transition: background var(--transition-base), color var(--transition-base);
}

.ai-support-whatsapp:hover {
    background: rgba(34, 197, 94, 0.1);
    color: #6ee7a0;
}

.ai-support-whatsapp svg {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .ai-support-widget {
        bottom: 1rem;
        right: 1rem;
    }

    .ai-support-toggle {
        width: 2.85rem;
        height: 2.85rem;
    }

    .ai-support-toggle svg {
        width: 1.3rem;
        height: 1.3rem;
    }

    .ai-support-window {
        position: fixed;
        bottom: 4.5rem;
        right: 0.5rem;
        left: 0.5rem;
        width: auto;
        height: 55vh;
        max-height: none;
        max-width: none;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }
}

@media (max-width: 480px) {
    .ai-support-window {
        height: 62vh;
    }
}