/* ===== GLASSMORPHISM GLOBAL UPGRADES ===== */
:root {
    --glass: rgba(255, 255, 255, 0.18);
    --glass-border: rgba(255, 255, 255, 0.35);
    --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.18);
    --glass-blur: blur(18px);
    --glass-card: rgba(255, 255, 255, 0.72);
    --glass-card-border: rgba(255, 255, 255, 0.5);
}

/* Upgrade header to true glass */
.header {
    background: rgba(255, 255, 255, 0.65) !important;
    backdrop-filter: blur(24px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(24px) saturate(180%) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.4) !important;
    box-shadow: 0 4px 24px rgba(31, 38, 135, 0.1) !important;
}

/* Upgrade bottom nav to true glass */
.bottom-nav {
    background: rgba(255, 255, 255, 0.6) !important;
    backdrop-filter: blur(28px) saturate(200%) !important;
    -webkit-backdrop-filter: blur(28px) saturate(200%) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.45) !important;
    box-shadow: 0 -4px 24px rgba(31, 38, 135, 0.1) !important;
}

/* Upgrade feature cards */
.feature-card, .game-card, .routine-item, .contact-card, .helpline-card, .control-card {
    background: rgba(255, 255, 255, 0.65) !important;
    backdrop-filter: blur(16px) saturate(160%) !important;
    -webkit-backdrop-filter: blur(16px) saturate(160%) !important;
    border: 1px solid rgba(255, 255, 255, 0.5) !important;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.1) !important;
}

/* Upgrade modals */
.auth-modal, .privacy-modal, .modal-content, .modal-box, .profile-panel {
    background: rgba(255, 255, 255, 0.82) !important;
    backdrop-filter: blur(32px) saturate(200%) !important;
    -webkit-backdrop-filter: blur(32px) saturate(200%) !important;
    border: 1px solid rgba(255, 255, 255, 0.5) !important;
}

/* ===== REMEMBRANCE AI CHATBOT ===== */
#ai-fab {
    position: fixed;
    bottom: calc(5.9rem + env(safe-area-inset-bottom) + 0.5rem);
    left: 1rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7C3AED, #3B82F6);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
    font-size: 1.4rem;
    cursor: pointer;
    z-index: 1200;
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: aiPulse 3s ease-in-out infinite;
}

#ai-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 32px rgba(124, 58, 237, 0.55);
}

@keyframes aiPulse {
    0%, 100% { box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4); }
    50% { box-shadow: 0 8px 32px rgba(124, 58, 237, 0.7), 0 0 0 8px rgba(124, 58, 237, 0.1); }
}

/* Chat window */
#ai-chat-window {
    position: fixed;
    bottom: calc(5.9rem + env(safe-area-inset-bottom) + 4.5rem);
    left: 1rem;
    right: 1rem;
    max-width: 420px;
    height: 72vh;
    max-height: 560px;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(32px) saturate(200%);
    -webkit-backdrop-filter: blur(32px) saturate(200%);
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 24px;
    box-shadow: 0 16px 48px rgba(31, 38, 135, 0.22), 0 0 0 1px rgba(255,255,255,0.3) inset;
    display: flex;
    flex-direction: column;
    z-index: 1199;
    overflow: hidden;
    transform: scale(0.92) translateY(16px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1), opacity 0.3s ease;
}

#ai-chat-window.open {
    transform: scale(1) translateY(0);
    opacity: 1;
    pointer-events: all;
}

@media (min-width: 480px) {
    #ai-chat-window {
        left: 1rem;
        right: auto;
        width: 380px;
    }
}

/* Chat header */
.ai-chat-header {
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, rgba(124,58,237,0.85), rgba(59,130,246,0.85));
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    flex-shrink: 0;
}

.ai-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    border: 2px solid rgba(255,255,255,0.4);
    flex-shrink: 0;
}

.ai-header-info { flex: 1; }

.ai-header-info h4 {
    color: white;
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.2;
}

.ai-header-info span {
    color: rgba(255,255,255,0.8);
    font-size: 0.78rem;
}

.ai-close-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    flex-shrink: 0;
}

.ai-close-btn:hover { background: rgba(255,255,255,0.35); }

/* Messages area */
.ai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    scroll-behavior: smooth;
}

.ai-messages::-webkit-scrollbar { width: 4px; }
.ai-messages::-webkit-scrollbar-track { background: transparent; }
.ai-messages::-webkit-scrollbar-thumb { background: rgba(124,58,237,0.3); border-radius: 4px; }

.ai-msg {
    max-width: 85%;
    padding: 0.75rem 1rem;
    border-radius: 18px;
    font-size: 0.95rem;
    line-height: 1.5;
    word-break: break-word;
    animation: msgIn 0.25s ease;
}

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

.ai-msg.bot {
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.2);
    color: #1E293B;
    align-self: flex-start;
    border-bottom-left-radius: 6px;
}

.ai-msg.user {
    background: linear-gradient(135deg, rgba(124,58,237,0.8), rgba(59,130,246,0.8));
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 6px;
}

.ai-typing {
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(124, 58, 237, 0.08);
    border: 1px solid rgba(124, 58, 237, 0.15);
    border-radius: 18px;
    border-bottom-left-radius: 6px;
    align-self: flex-start;
    width: fit-content;
}

.ai-typing span {
    width: 7px;
    height: 7px;
    background: #7C3AED;
    border-radius: 50%;
    animation: typingDot 1.2s ease-in-out infinite;
    opacity: 0.5;
}

.ai-typing span:nth-child(2) { animation-delay: 0.2s; }
.ai-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingDot {
    0%, 80%, 100% { transform: scale(1); opacity: 0.5; }
    40% { transform: scale(1.3); opacity: 1; }
}

/* Input area */
.ai-input-area {
    padding: 0.75rem 1rem;
    border-top: 1px solid rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.4);
    backdrop-filter: blur(8px);
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
    flex-shrink: 0;
}

#ai-input {
    flex: 1;
    padding: 0.7rem 1rem;
    border: 1.5px solid rgba(124,58,237,0.25);
    border-radius: 20px;
    font-size: 0.95rem;
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(8px);
    outline: none;
    resize: none;
    font-family: inherit;
    line-height: 1.4;
    max-height: 100px;
    transition: border-color 0.2s;
}

#ai-input:focus { border-color: rgba(124,58,237,0.6); }

#ai-send-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7C3AED, #3B82F6);
    border: none;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.2s, opacity 0.2s;
}

#ai-send-btn:hover { transform: scale(1.1); }
#ai-send-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Nav AI item highlight */
.nav-item.ai-nav {
    color: #7C3AED !important;
}

.nav-item.ai-nav.active {
    background: rgba(124, 58, 237, 0.12) !important;
    color: #6D28D9 !important;
}