/* ============================================
   TECHenya AI Chat Widget — Styles
   Floating button + chat window + conversation
   ============================================ */

/* ─── CSS Variables (inherit from theme) ────────── */
:root {
    --tai-blue: #0a66c2;
    --tai-navy: #0f172a;
    --tai-orange: #ff6b35;
    --tai-teal: #00d4aa;
    --tai-gray-50: #f8fafc;
    --tai-gray-100: #f1f5f9;
    --tai-gray-200: #e2e8f0;
    --tai-gray-400: #94a3b8;
    --tai-gray-600: #475569;
    --tai-gray-700: #334155;
    --tai-radius: 16px;
    --tai-font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --tai-shadow: 0 20px 60px rgba(15, 23, 42, 0.15), 0 8px 20px rgba(15, 23, 42, 0.08);
    --tai-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Floating Chat Button ──────────────────────── */
.tai-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9998;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 0 6px;
    height: 52px;
    background: var(--tai-navy);
    color: #fff;
    border: none;
    border-radius: 28px;
    cursor: pointer;
    font-family: var(--tai-font);
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 8px 30px rgba(10, 102, 194, 0.3), 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all var(--tai-transition);
    overflow: hidden;
    white-space: nowrap;
}

.tai-fab:hover {
    background: linear-gradient(135deg, var(--tai-navy), var(--tai-blue));
    box-shadow: 0 12px 40px rgba(10, 102, 194, 0.4), 0 4px 12px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

.tai-fab__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--tai-blue), var(--tai-teal));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tai-fab__avatar svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: #fff;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.tai-fab__text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.tai-fab__text-small {
    font-size: 11px;
    font-weight: 500;
    opacity: 0.8;
}

.tai-fab__text-main {
    font-size: 14px;
    font-weight: 700;
}

/* Pulse animation */
.tai-fab--pulse::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 32px;
    border: 2px solid var(--tai-blue);
    animation: tai-pulse 2s ease-out infinite;
    pointer-events: none;
}

@keyframes tai-pulse {
    0% {
        opacity: 1;
        transform: scale(1);
    }

    100% {
        opacity: 0;
        transform: scale(1.15);
    }
}

/* Notification dot */
.tai-fab__dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 10px;
    height: 10px;
    background: var(--tai-orange);
    border-radius: 50%;
    border: 2px solid var(--tai-navy);
    animation: tai-dot-pulse 2s ease-in-out infinite;
}

@keyframes tai-dot-pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.3);
    }
}

/* ─── Chat Window ───────────────────────────────── */
.tai-window {
    position: fixed;
    bottom: 90px;
    right: 24px;
    width: 400px;
    height: 560px;
    max-height: calc(100vh - 120px);
    background: #fff;
    border-radius: var(--tai-radius);
    box-shadow: var(--tai-shadow);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-family: var(--tai-font);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: all var(--tai-transition);
    border: 1px solid var(--tai-gray-200);
}

.tai-window--open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* ─── Header ────────────────────────────────────── */
.tai-header {
    background: linear-gradient(135deg, var(--tai-navy), var(--tai-blue));
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.tai-header__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.tai-header__avatar svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: #fff;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.tai-header__info {
    flex: 1;
}

.tai-header__name {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
}

.tai-header__status {
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.tai-header__status-dot {
    width: 7px;
    height: 7px;
    background: var(--tai-teal);
    border-radius: 50%;
    display: inline-block;
}

.tai-header__close {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--tai-transition);
}

.tai-header__close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.tai-header__close svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

/* ─── Messages Area ─────────────────────────────── */
.tai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--tai-gray-50);
    scroll-behavior: smooth;
}

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

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

.tai-messages::-webkit-scrollbar-thumb {
    background: var(--tai-gray-200);
    border-radius: 4px;
}

/* Bot message */
.tai-msg {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
    animation: tai-msg-in 0.3s ease-out;
}

@keyframes tai-msg-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tai-msg--bot {
    background: #fff;
    color: var(--tai-gray-700);
    border: 1px solid var(--tai-gray-200);
    border-bottom-left-radius: 4px;
    align-self: flex-start;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.tai-msg--user {
    background: linear-gradient(135deg, var(--tai-blue), var(--tai-navy));
    color: #fff;
    border-bottom-right-radius: 4px;
    align-self: flex-end;
}

/* Typing indicator */
.tai-typing {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    align-self: flex-start;
    background: #fff;
    border: 1px solid var(--tai-gray-200);
    border-radius: 16px;
    border-bottom-left-radius: 4px;
}

.tai-typing__dot {
    width: 7px;
    height: 7px;
    background: var(--tai-gray-400);
    border-radius: 50%;
    animation: tai-typing-bounce 1.4s ease-in-out infinite;
}

.tai-typing__dot:nth-child(2) {
    animation-delay: 0.2s;
}

.tai-typing__dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes tai-typing-bounce {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* ─── Suggestions / Quick Replies ───────────────── */
.tai-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0 16px 8px;
    animation: tai-msg-in 0.3s ease-out;
}

.tai-suggestion-chip {
    background: #fff;
    border: 1px solid var(--tai-blue);
    color: var(--tai-blue);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--tai-font);
    transition: all var(--tai-transition);
    white-space: nowrap;
}

.tai-suggestion-chip:hover {
    background: var(--tai-blue);
    color: #fff;
}

/* ─── Lead Form (Conversational) ────────────────── */
.tai-lead-step {
    background: #fff;
    border: 1px solid var(--tai-gray-200);
    border-radius: 16px;
    border-bottom-left-radius: 4px;
    padding: 14px 16px;
    max-width: 85%;
    align-self: flex-start;
    animation: tai-msg-in 0.3s ease-out;
}

.tai-lead-step input,
.tai-lead-step select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--tai-gray-200);
    border-radius: 10px;
    font-family: var(--tai-font);
    font-size: 14px;
    margin-top: 8px;
    outline: none;
    transition: border-color var(--tai-transition);
    background: var(--tai-gray-50);
    color: var(--tai-gray-700);
}

.tai-lead-step input:focus,
.tai-lead-step select:focus {
    border-color: var(--tai-blue);
    box-shadow: 0 0 0 3px rgba(10, 102, 194, 0.1);
}

.tai-lead-step select option {
    color: var(--tai-gray-700);
    background: #fff;
}

.tai-lead-step__label {
    font-size: 14px;
    color: var(--tai-gray-700);
    line-height: 1.5;
}

.tai-lead-step__skip {
    font-size: 12px;
    color: var(--tai-gray-400);
    cursor: pointer;
    margin-top: 6px;
    display: inline-block;
    text-decoration: underline;
}

.tai-lead-step__skip:hover {
    color: var(--tai-blue);
}

.tai-lead-step__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    padding: 8px 18px;
    background: linear-gradient(135deg, var(--tai-blue), var(--tai-navy));
    color: #fff;
    border: none;
    border-radius: 20px;
    font-family: var(--tai-font);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--tai-transition);
}

.tai-lead-step__btn:hover {
    box-shadow: 0 4px 12px rgba(10, 102, 194, 0.3);
    transform: translateY(-1px);
}

/* Service quick-select buttons */
.tai-service-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-top: 10px;
}

.tai-service-btn {
    padding: 8px 10px;
    border: 1px solid var(--tai-gray-200);
    border-radius: 10px;
    background: var(--tai-gray-50);
    font-family: var(--tai-font);
    font-size: 12px;
    font-weight: 500;
    color: var(--tai-gray-600);
    cursor: pointer;
    transition: all var(--tai-transition);
    text-align: center;
}

.tai-service-btn:hover,
.tai-service-btn--active {
    background: var(--tai-blue);
    color: #fff;
    border-color: var(--tai-blue);
}

/* ─── Input Area ────────────────────────────────── */
.tai-input-area {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--tai-gray-200);
    background: #fff;
    flex-shrink: 0;
}

.tai-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--tai-gray-200);
    border-radius: 24px;
    font-family: var(--tai-font);
    font-size: 14px;
    outline: none;
    transition: border-color var(--tai-transition);
    background: var(--tai-gray-50);
    color: var(--tai-gray-700);
}

.tai-input:focus {
    border-color: var(--tai-blue);
    background: #fff;
}

.tai-input::placeholder {
    color: var(--tai-gray-400);
}

.tai-send-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: linear-gradient(135deg, var(--tai-blue), var(--tai-navy));
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--tai-transition);
    flex-shrink: 0;
}

.tai-send-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(10, 102, 194, 0.3);
}

.tai-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.tai-send-btn svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: #fff;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ─── Powered by footer ─────────────────────────── */
.tai-footer {
    text-align: center;
    padding: 6px;
    font-size: 10px;
    color: var(--tai-gray-400);
    background: #fff;
    border-top: 1px solid var(--tai-gray-100);
}

.tai-footer a {
    color: var(--tai-blue);
    text-decoration: none;
    font-weight: 600;
}

/* ─── Mobile Responsive ─────────────────────────── */
@media (max-width: 480px) {
    .tai-fab {
        padding: 0 14px 0 4px;
        height: 46px;
        bottom: 16px;
        right: 16px;
    }

    .tai-fab__avatar {
        width: 36px;
        height: 36px;
    }

    .tai-fab__text-small {
        display: none;
    }

    .tai-fab__text-main {
        font-size: 13px;
    }

    .tai-window {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        height: 100%;
        max-height: 100vh;
        border-radius: 0;
    }
}

/* ─── Reduced motion ────────────────────────────── */
@media (prefers-reduced-motion: reduce) {

    .tai-fab,
    .tai-window,
    .tai-msg,
    .tai-suggestion-chip,
    .tai-send-btn {
        transition: none;
    }

    .tai-fab--pulse::after,
    .tai-typing__dot,
    .tai-fab__dot {
        animation: none;
    }
}

/* ─── Hidden state ──────────────────────────────── */
.tai-hidden {
    display: none !important;
}