/*
 * MJR AI Assistant — shared UI styles.
 *
 * Loaded from each page's <head> via <link rel="stylesheet">, so the
 * polished look is applied during the initial render (no flash when
 * navigating between pages). The companion ai-assistant.js handles
 * DOM enhancements only (header avatar, suggestion chips, typing
 * dots, focus handling).
 */

.ai-floating-btn {
    position: fixed !important;
    bottom: 40px !important;
    right: 40px !important;
    width: 60px !important;
    height: 60px !important;
    border-radius: 50% !important;
    background: linear-gradient(135deg, #2563eb, #1e40af) !important;
    color: #fff !important;
    border: none !important;
    box-shadow: 0 12px 28px rgba(30, 64, 175, 0.35) !important;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    z-index: 9998 !important;
    transition: transform 0.25s ease, box-shadow 0.25s ease !important;
}
.ai-floating-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.45);
    animation: mjrAiPulse 2.4s ease-out infinite;
    pointer-events: none;
}
.ai-floating-btn:hover {
    transform: translateY(-3px) scale(1.04) !important;
    box-shadow: 0 16px 36px rgba(30, 64, 175, 0.45) !important;
}

.ai-chat-widget {
    position: fixed !important;
    bottom: 110px !important;
    right: 40px !important;
    width: 380px !important;
    max-width: calc(100vw - 32px) !important;
    height: 560px !important;
    max-height: calc(100vh - 140px) !important;
    background: var(--card-bg) !important;
    border-radius: 18px !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.22) !important;
    display: flex !important;
    flex-direction: column !important;
    z-index: 9999 !important;
    overflow: hidden !important;
    transform: translateY(14px) scale(0.96) !important;
    opacity: 0 !important;
    pointer-events: none !important;
    transform-origin: bottom right !important;
    transition: transform 0.25s ease, opacity 0.25s ease !important;
}
.ai-chat-widget.active {
    transform: translateY(0) scale(1) !important;
    opacity: 1 !important;
    pointer-events: auto !important;
}

.ai-chat-header {
    background: linear-gradient(135deg, #2563eb, #1e40af) !important;
    color: #fff !important;
    padding: 14px 18px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 12px !important;
}
.ai-chat-title {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    min-width: 0 !important;
}
.ai-chat-avatar {
    width: 38px !important;
    height: 38px !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.18) !important;
    color: #fff !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex: 0 0 auto !important;
    backdrop-filter: blur(4px) !important;
}
.ai-chat-avatar i,
.ai-chat-avatar svg {
    width: 20px !important;
    height: 20px !important;
}
.ai-chat-title-text {
    display: flex !important;
    flex-direction: column !important;
    line-height: 1.25 !important;
    min-width: 0 !important;
}
.ai-chat-title-text strong {
    font-size: 0.98rem !important;
    font-weight: 700 !important;
}
.ai-chat-title-text span {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    margin-top: 2px !important;
    font-size: 0.74rem !important;
    opacity: 0.85 !important;
    font-weight: 500 !important;
}
.ai-chat-title-text span::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.25);
    display: inline-block;
}
.ai-chat-header button {
    width: 32px !important;
    height: 32px !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.18) !important;
    color: #fff !important;
    border: none !important;
    cursor: pointer !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: background 0.2s ease !important;
}
.ai-chat-header button:hover {
    background: rgba(255, 255, 255, 0.3) !important;
}

.ai-chat-body {
    flex-grow: 1 !important;
    padding: 16px 14px !important;
    overflow-y: auto !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
    background: var(--input-bg) !important;
    scroll-behavior: smooth !important;
}
.ai-chat-body::-webkit-scrollbar { width: 6px; }
.ai-chat-body::-webkit-scrollbar-track { background: transparent; }
.ai-chat-body::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.5);
    border-radius: 10px;
}

.chat-msg {
    max-width: 88% !important;
    padding: 11px 15px !important;
    border-radius: 16px !important;
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
    word-wrap: break-word !important;
    animation: mjrAiMsgIn 0.22s ease both !important;
}
.chat-msg.user {
    background: linear-gradient(135deg, #2563eb, #1e40af) !important;
    color: #fff !important;
    align-self: flex-end !important;
    border-bottom-right-radius: 5px !important;
    box-shadow: 0 6px 16px rgba(30, 64, 175, 0.22) !important;
}
.chat-msg.ai {
    background: var(--card-bg) !important;
    color: var(--text-dark) !important;
    align-self: flex-start !important;
    border: 1px solid var(--border-color) !important;
    border-bottom-left-radius: 5px !important;
    box-shadow: 0 4px 12px var(--shadow-color) !important;
}
.ai-message-time {
    display: block;
    margin-top: 6px;
    font-size: 0.66rem;
    opacity: 0.7;
    text-align: right;
    font-weight: 500;
}
.chat-msg.user .ai-message-time { color: rgba(255, 255, 255, 0.85); }
.chat-msg.ai .ai-message-time { color: var(--text-muted); }

.ai-typing-dots {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 2px 4px;
}
.ai-typing-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #1e40af;
    opacity: 0.55;
    animation: mjrAiTyping 1.1s infinite ease-in-out;
}
.ai-typing-dots span:nth-child(2) { animation-delay: 0.15s; }
.ai-typing-dots span:nth-child(3) { animation-delay: 0.3s; }

.ai-suggestions-container {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    margin-top: 4px !important;
    margin-bottom: 4px !important;
}
.ai-suggestion-chip {
    background: var(--card-bg) !important;
    color: var(--text-dark) !important;
    border: 1px solid var(--border-color) !important;
    padding: 10px 14px !important;
    border-radius: 12px !important;
    font-size: 0.83rem !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    text-align: left !important;
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    box-shadow: 0 2px 6px var(--shadow-color) !important;
    max-width: 92% !important;
    align-self: flex-start !important;
}
.ai-suggestion-chip:hover {
    background: #dbeafe !important;
    color: #1e40af !important;
    border-color: #dbeafe !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 6px 14px rgba(30, 64, 175, 0.18) !important;
}
.ai-suggestion-chip i { color: #1e40af; flex: 0 0 auto; }

.ai-chat-input-area {
    padding: 12px 14px !important;
    background: var(--card-bg) !important;
    border-top: 1px solid var(--border-color) !important;
    display: flex !important;
    gap: 10px !important;
    align-items: center !important;
}
.ai-chat-input-area input {
    flex-grow: 1 !important;
    padding: 11px 16px !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 999px !important;
    outline: none !important;
    font-size: 0.9rem !important;
    background: var(--input-bg) !important;
    color: var(--text-dark) !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease !important;
}
.ai-chat-input-area input:focus {
    border-color: #1e40af !important;
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15) !important;
}
.ai-chat-input-area button {
    background: linear-gradient(135deg, #2563eb, #1e40af) !important;
    color: #fff !important;
    border: none !important;
    width: 40px !important;
    height: 40px !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    transition: transform 0.2s ease, background 0.2s ease, opacity 0.2s ease !important;
    flex: 0 0 auto !important;
}
.ai-chat-input-area button:hover:not(:disabled) {
    transform: scale(1.06) !important;
    background: #1d4ed8 !important;
}
.ai-chat-input-area button:disabled,
.ai-chat-input-area input:disabled {
    opacity: 0.55 !important;
    cursor: not-allowed !important;
}

@keyframes mjrAiMsgIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes mjrAiTyping {
    0%, 80%, 100% { transform: translateY(0); opacity: 0.45; }
    40% { transform: translateY(-4px); opacity: 1; }
}
@keyframes mjrAiPulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.45); }
    70% { box-shadow: 0 0 0 16px rgba(37, 99, 235, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

@media (max-width: 640px) {
    .ai-floating-btn { bottom: 90px !important; right: 20px !important; }
    .ai-chat-widget {
        right: 16px !important;
        bottom: 160px !important;
        width: calc(100vw - 32px) !important;
        height: min(540px, calc(100vh - 180px)) !important;
    }
}

/* School year badge inside the sidebar (rendered by school-year.js) */
.sidebar-school-year {
    margin-top: 8px;
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.18);
    color: #93c5fd;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    min-height: 18px;
    transition: opacity 0.2s ease;
}
.sidebar-school-year:empty { background: transparent; padding: 0; }
