/* Pharma Chat Support Widget — Mobile First */

.pcs-widget {
    --pcs-primary: #0066cc;
    --pcs-primary-dark: #004d99;
    --pcs-primary-light: #e6f0ff;
    --pcs-bg: #ffffff;
    --pcs-bg-secondary: #f5f7fa;
    --pcs-text: #1a1a2e;
    --pcs-text-light: #6b7280;
    --pcs-border: #e5e7eb;
    --pcs-radius: 16px;
    --pcs-radius-sm: 12px;
    --pcs-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    --pcs-shadow-trigger: 0 4px 16px rgba(0, 0, 0, 0.2);
    --pcs-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    position: fixed;
    bottom: 20px;
    z-index: 999999;
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.pcs-widget--visible {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    box-sizing: border-box;
}

.pcs-widget *,
.pcs-widget *::before,
.pcs-widget *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.pcs-widget[data-position="bottom-right"] {
    right: 20px;
}

.pcs-widget[data-position="bottom-left"] {
    left: 20px;
}

/* Trigger Button */
.pcs-widget__trigger {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: none;
    background: var(--pcs-primary);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--pcs-shadow-trigger);
    transition: transform var(--pcs-transition), background var(--pcs-transition);
    position: relative;
    z-index: 2;
}

.pcs-widget__trigger:hover {
    transform: scale(1.08);
    background: var(--pcs-primary-dark);
}

.pcs-widget__trigger:active {
    transform: scale(0.95);
}

.pcs-widget__trigger-close {
    display: none;
}

.pcs-widget--open .pcs-widget__trigger-icon {
    display: none;
}

.pcs-widget--open .pcs-widget__trigger-close {
    display: block;
}

/* On mobile, hide trigger entirely when chat is open (panel is fullscreen) */
@media (max-width: 767px) {
    .pcs-widget--open .pcs-widget__trigger {
        display: none;
    }
}

/* Chat Panel — Mobile: fullscreen */
.pcs-widget__panel {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    background: var(--pcs-bg);
    z-index: 1;
    transform: translateY(100%);
    opacity: 0;
    transition: transform var(--pcs-transition), opacity var(--pcs-transition);
    pointer-events: none;
}

.pcs-widget__panel[aria-hidden="false"] {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

/* Header */
.pcs-widget__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--pcs-primary);
    color: #ffffff;
    flex-shrink: 0;
}

.pcs-widget__agent {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pcs-widget__agent-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pcs-widget__agent-info {
    display: flex;
    flex-direction: column;
}

.pcs-widget__agent-name {
    font-weight: 600;
    font-size: 15px;
}

.pcs-widget__agent-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    opacity: 0.9;
}

.pcs-widget__status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4ade80;
    flex-shrink: 0;
}

.pcs-widget__close {
    background: none;
    border: none;
    color: #ffffff;
    cursor: pointer;
    padding: 4px;
    border-radius: 8px;
    transition: background var(--pcs-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pcs-widget__close:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Messages Area */
.pcs-widget__messages {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--pcs-bg-secondary);
}

/* Message Bubbles */
.pcs-widget__msg {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    animation: pcs-fadeIn 0.25s ease;
}

@keyframes pcs-fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pcs-widget__msg--user {
    align-self: flex-end;
}

.pcs-widget__msg--assistant {
    align-self: flex-start;
}

.pcs-widget__msg-text {
    padding: 10px 14px;
    border-radius: var(--pcs-radius-sm);
    word-wrap: break-word;
    white-space: pre-wrap;
}

.pcs-widget__msg--user .pcs-widget__msg-text {
    background: var(--pcs-primary);
    color: #ffffff;
    border-bottom-right-radius: 4px;
}

.pcs-widget__msg--assistant .pcs-widget__msg-text {
    background: var(--pcs-bg);
    color: var(--pcs-text);
    border: 1px solid var(--pcs-border);
    border-bottom-left-radius: 4px;
}

/* Links in messages */
.pcs-widget__link {
    color: var(--pcs-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    word-break: break-all;
    transition: color var(--pcs-transition);
}

.pcs-widget__link:hover {
    color: var(--pcs-primary-dark);
}

.pcs-widget__msg--user .pcs-widget__link {
    color: #ffffff;
    text-decoration-color: rgba(255, 255, 255, 0.6);
}

.pcs-widget__msg-time {
    font-size: 11px;
    color: var(--pcs-text-light);
    margin-top: 4px;
    padding: 0 4px;
}

.pcs-widget__msg--user .pcs-widget__msg-time {
    text-align: right;
}

/* Typing Indicator */
.pcs-widget__typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: var(--pcs-bg);
    border: 1px solid var(--pcs-border);
    border-radius: var(--pcs-radius-sm);
    border-bottom-left-radius: 4px;
    align-self: flex-start;
    animation: pcs-fadeIn 0.25s ease;
}

.pcs-widget__typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--pcs-text-light);
    animation: pcs-bounce 1.4s ease-in-out infinite;
}

.pcs-widget__typing-dot:nth-child(2) {
    animation-delay: 0.16s;
}

.pcs-widget__typing-dot:nth-child(3) {
    animation-delay: 0.32s;
}

@keyframes pcs-bounce {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-6px);
    }
}

/* Input Area */
.pcs-widget__input-area {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--pcs-border);
    background: var(--pcs-bg);
    flex-shrink: 0;
}

.pcs-widget__input {
    flex: 1;
    border: 1px solid var(--pcs-border);
    border-radius: var(--pcs-radius-sm);
    padding: 10px 14px;
    font-family: inherit;
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    outline: none;
    transition: border-color var(--pcs-transition);
    max-height: 120px;
    min-height: 42px;
    background: var(--pcs-bg);
    color: var(--pcs-text);
}

.pcs-widget__input:focus {
    border-color: var(--pcs-primary);
}

.pcs-widget__send {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background: var(--pcs-primary);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--pcs-transition), opacity var(--pcs-transition);
    flex-shrink: 0;
}

.pcs-widget__send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pcs-widget__send:not(:disabled):hover {
    background: var(--pcs-primary-dark);
}

/* Desktop — positioned panel */
@media (min-width: 768px) {
    .pcs-widget__panel {
        position: absolute;
        inset: auto;
        bottom: 74px;
        width: 380px;
        height: 540px;
        border-radius: var(--pcs-radius);
        box-shadow: var(--pcs-shadow);
        overflow: hidden;
    }

    .pcs-widget[data-position="bottom-right"] .pcs-widget__panel {
        right: 0;
    }

    .pcs-widget[data-position="bottom-left"] .pcs-widget__panel {
        left: 0;
    }

    .pcs-widget__panel[aria-hidden="true"] {
        transform: translateY(16px) scale(0.95);
        opacity: 0;
        pointer-events: none;
    }

    .pcs-widget__header {
        border-radius: var(--pcs-radius) var(--pcs-radius) 0 0;
    }
}

/* Safe area padding for mobile (notch, etc) */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    @media (max-width: 767px) {
        .pcs-widget__input-area {
            padding-bottom: calc(12px + env(safe-area-inset-bottom));
        }

        .pcs-widget__header {
            padding-top: calc(16px + env(safe-area-inset-top));
        }
    }
}