@import url('https://fonts.googleapis.com/css2?family=Jost:wght@400;500;700&family=Roboto:wght@400;500;700&display=swap');

:root {
    --bloom-bg-color: #ffffff;
    --bloom-border-color: #e2e8f0;
    --bloom-header-bg: #1e73be; /* Eduma Blue */
    --bloom-header-text: #ffffff;
    --bloom-chat-bg: #f8fafc;
    --bloom-user-msg-bg: #eff6ff; /* Light Blue */
    --bloom-user-msg-text: #1e293b;
    --bloom-user-msg-border: #bfdbfe;
    --bloom-bot-msg-bg: #ffffff;
    --bloom-bot-msg-text: #334155;
    --bloom-bot-msg-border: #e2e8f0;
    --bloom-input-bg: #f1f5f9;
    --bloom-input-focus-bg: #ffffff;
    --bloom-input-border: #cbd5e1;
    --bloom-primary: #1e73be;
    --bloom-primary-text: #ffffff;
    --bloom-accent: #f39c12; /* Eduma Orange */
    --bloom-accent-hover: #e67e22;
    
    --bloom-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); 
    --bloom-radius: 12px;
}

body.thim-dark-mode, .dark-theme {
    --bloom-bg-color: #1a1a1c;
    --bloom-border-color: #2d2e30;
    --bloom-header-bg: #111112;
    --bloom-header-text: #ffffff;
    --bloom-chat-bg: #141516;
    --bloom-user-msg-bg: #222629;
    --bloom-user-msg-text: #e8e6e3;
    --bloom-user-msg-border: #31363a;
    --bloom-bot-msg-bg: #1a1a1c;
    --bloom-bot-msg-text: #b8b3ab;
    --bloom-bot-msg-border: #2d2e30;
    --bloom-input-bg: #111112;
    --bloom-input-focus-bg: #1a1a1c;
    --bloom-input-border: #31363a;
    --bloom-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

/* ========================================================
   Floating Button & Breathing Anim
   ======================================================== */
@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 4px 15px rgba(243, 156, 18, 0.2); }
    50% { transform: scale(1.1); box-shadow: 0 6px 20px rgba(243, 156, 18, 0.6); }
    100% { transform: scale(1); box-shadow: 0 4px 15px rgba(243, 156, 18, 0.2); }
}

.bloom-anim-pulse {
    animation: pulse 2.5s infinite ease-in-out;
}

#bloom-tutor-floating-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 65px;
    height: 65px;
    background-color: var(--bloom-accent);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 9999999;
    transition: background-color 0.2s;
}

#bloom-tutor-floating-btn:hover {
    background-color: var(--bloom-accent-hover);
}

#bloom-tutor-floating-btn.active-btn {
    background-color: var(--bloom-primary);
    animation: none; /* stop pulsing when open */
    box-shadow: 0 6px 20px rgba(30, 115, 190, 0.35);
    transform: scale(1);
}

/* ========================================================
   Proactive Pop-up Bubble
   ======================================================== */
#bloom-proactive-bubble {
    position: fixed;
    bottom: 95px;
    right: 25px;
    background: var(--bloom-bg-color);
    color: var(--bloom-bot-msg-text);
    padding: 12px 16px;
    border-radius: var(--bloom-radius);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    border: 1px solid var(--bloom-border-color);
    font-family: 'Jost', sans-serif;
    font-size: 0.95rem;
    z-index: 9999998;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    max-width: 250px;
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: bottom right;
}

.dark-theme #bloom-proactive-bubble {
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

#bloom-proactive-bubble::after {
    content: '';
    position: absolute;
    bottom: -8px;
    right: 20px;
    border-width: 8px 8px 0;
    border-style: solid;
    border-color: var(--bloom-bg-color) transparent transparent transparent;
}

#bloom-proactive-close {
    background: none;
    border: none;
    color: var(--bloom-bot-msg-text);
    font-size: 1.2rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    opacity: 0.6;
}

#bloom-proactive-bubble.hidden-bubble {
    opacity: 0;
    transform: scale(0.5);
    pointer-events: none;
}

#bloom-proactive-text {
    flex-grow: 1;
    line-height: 1.4;
}

/* ========================================================
   Main Chat Container 
   ======================================================== */
#bloom-tutor-container {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 380px;
    height: 580px;
    max-height: calc(100vh - 130px);
    border: 1px solid var(--bloom-border-color);
    border-radius: var(--bloom-radius);
    background-color: var(--bloom-bg-color);
    display: flex;
    flex-direction: column;
    box-shadow: var(--bloom-shadow);
    font-family: 'Jost', 'Roboto', sans-serif;
    direction: rtl;
    overflow: hidden;
    z-index: 9999998;
    transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s;
    transform-origin: bottom right;
}

#bloom-tutor-container.hidden-tutor {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    visibility: hidden;
    pointer-events: none;
}

#bloom-tutor-container.active-tutor {
    opacity: 1;
    transform: translateY(0) scale(1);
    visibility: visible;
    pointer-events: auto;
}

/* ========================================================
   Header & Language Toggle 
   ======================================================== */
#bloom-tutor-header {
    background: var(--bloom-header-bg);
    color: var(--bloom-header-text);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    z-index: 10;
}

#bloom-tutor-header h3 {
    margin: 0;
    color: var(--bloom-header-text);
    font-size: 1.25rem;
    font-weight: 500;
    font-family: 'Jost', sans-serif;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

#bloom-lang-toggle {
    background: rgba(255,255,255,0.2);
    color: var(--bloom-header-text);
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
    font-family: 'Jost', sans-serif;
}

#bloom-lang-toggle option {
    background: var(--bloom-bg-color);
    color: var(--bloom-bot-msg-text);
}

#bloom-tutor-close-btn {
    background: transparent;
    border: none;
    color: var(--bloom-header-text);
    font-size: 1.6rem;
    cursor: pointer;
    line-height: 1;
    opacity: 0.8;
    transition: opacity 0.2s;
}

#bloom-tutor-close-btn:hover {
    opacity: 1;
}

/* ========================================================
   Messages Area 
   ======================================================== */
#bloom-tutor-messages {
    flex-grow: 1;
    padding: 24px 20px;
    overflow-y: auto;
    background-color: var(--bloom-chat-bg);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tutor-message {
    max-width: 85%;
    padding: 14px 18px;
    border-radius: var(--bloom-radius);
    font-size: 0.95rem;
    line-height: 1.6;
    word-wrap: break-word;
    animation: fadeInMessage 0.3s ease-out forwards;
    opacity: 0;
    transform: translateY(10px);
}

.student-message {
    align-self: flex-end; 
    background-color: var(--bloom-user-msg-bg);
    color: var(--bloom-user-msg-text);
    border: 1px solid var(--bloom-user-msg-border);
    border-bottom-left-radius: 4px; 
}

.assistant-message {
    align-self: flex-start;
    background-color: var(--bloom-bot-msg-bg);
    color: var(--bloom-bot-msg-text);
    border: 1px solid var(--bloom-bot-msg-border);
    border-bottom-right-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.typing-indicator {
    color: #9ca3af;
    font-style: italic;
    background: transparent;
    border: none;
    box-shadow: none;
    font-size: 0.9rem;
    padding-bottom: 0px;
}

/* ========================================================
   Input Area 
   ======================================================== */
#bloom-tutor-input-area {
    display: flex;
    padding: 16px;
    background-color: var(--bloom-bg-color);
    border-top: 1px solid var(--bloom-border-color);
    gap: 10px;
    z-index: 10;
}

#bloom-tutor-input {
    flex-grow: 1;
    padding: 12px 18px;
    border: 1px solid var(--bloom-input-border);
    border-radius: 20px;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: all 0.2s ease-in-out;
    background-color: var(--bloom-input-bg);
    color: var(--bloom-user-msg-text);
}

.dark-theme #bloom-tutor-input {
    color: var(--bloom-bot-msg-text);
}

#bloom-tutor-input:focus {
    background-color: var(--bloom-input-focus-bg);
    border-color: var(--bloom-primary);
    box-shadow: 0 0 0 3px rgba(30, 115, 190, 0.15);
}

#bloom-tutor-send {
    background-color: var(--bloom-accent);
    color: #ffffff;
    border: none;
    border-radius: 20px;
    padding: 0 24px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.2s;
}

#bloom-tutor-send:hover:not(:disabled) {
    background-color: var(--bloom-accent-hover);
}

/* Scrollbar */
#bloom-tutor-messages::-webkit-scrollbar { width: 5px; }
#bloom-tutor-messages::-webkit-scrollbar-track { background: transparent; }
#bloom-tutor-messages::-webkit-scrollbar-thumb { background-color: var(--bloom-border-color); border-radius: 10px; }

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

@media screen and (max-width: 768px) {
    #bloom-tutor-container {
        width: calc(100% - 40px);
        bottom: 90px;
        right: 20px;
        height: min(600px, calc(100vh - 120px));
    }
}