/* ChatModel SaaS - Tenant AI Assistant Stylesheet */
:root {
    --tenant-color: #4f46e5;
}

/* Dark Theme (Default) */
html[data-theme="dark"] {
    --bg-body: radial-gradient(circle at top, #1e1b4b 0%, #0b0f19 70%);
    --card-bg: rgba(18, 24, 38, 0.95);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --bot-bubble: #1e293b;
    --bot-bubble-text: #e2e8f0;
    --border-color: #334155;
    --input-bg: #1e293b;
    --input-bar-bg: #111827;
    --powered-bg: #0c121e;
    --shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
    --toggle-btn-bg: rgba(255, 255, 255, 0.15);
    --toggle-btn-border: rgba(255, 255, 255, 0.25);
}

/* Light / Day Theme */
html[data-theme="light"] {
    --bg-body: radial-gradient(circle at top, #e0e7ff 0%, #f1f5f9 70%);
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --bot-bubble: #f1f5f9;
    --bot-bubble-text: #1e293b;
    --border-color: #e2e8f0;
    --input-bg: #f8fafc;
    --input-bar-bg: #ffffff;
    --powered-bg: #f8fafc;
    --shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.12);
    --toggle-btn-bg: rgba(255, 255, 255, 0.25);
    --toggle-btn-border: rgba(255, 255, 255, 0.4);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background: var(--bg-body);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-main);
    padding: 16px;
    transition: background 0.3s ease;
    -webkit-font-smoothing: antialiased;
}

.chat-container {
    width: 100%;
    max-width: 500px;
    height: 90vh;
    height: 90dvh;
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Fullscreen Mobile View for Tenant Chat */
@media (max-width: 600px) {
    body {
        padding: 0;
        align-items: stretch;
    }
    .chat-container {
        max-width: 100%;
        height: 100vh;
        height: 100dvh;
        border-radius: 0;
        border: none;
    }
    .chat-header {
        padding: 12px 16px;
    }
    .header-avatar {
        width: 36px;
        height: 36px;
        font-size: 1.1rem;
    }
    .header-title {
        font-size: 0.95rem;
    }
    .chat-messages {
        padding: 14px;
    }
    .chat-input-container {
        padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px)) 12px;
    }
}

.chat-header {
    background: linear-gradient(135deg, var(--tenant-color), #312e81);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
    flex-shrink: 0;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.header-avatar {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    flex-shrink: 0;
}

.header-title {
    font-weight: 700;
    font-size: 1.05rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.status-tag {
    font-size: 0.75rem;
    color: #4ade80;
    display: flex;
    align-items: center;
    gap: 5px;
}

.status-dot {
    width: 7px;
    height: 7px;
    background: #4ade80;
    border-radius: 50%;
    box-shadow: 0 0 8px #4ade80;
}

.theme-toggle-btn {
    background: var(--toggle-btn-bg);
    border: 1px solid var(--toggle-btn-border);
    color: #ffffff;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    transition: all 0.2s ease;
    backdrop-filter: blur(4px);
    flex-shrink: 0;
}

.theme-toggle-btn:hover {
    transform: scale(1.08);
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    -webkit-overflow-scrolling: touch;
}

.message {
    max-width: 88%;
    padding: 12px 16px;
    border-radius: 18px;
    font-size: 0.93rem;
    line-height: 1.5;
    word-break: break-word;
    transition: background 0.3s ease, color 0.3s ease;
}

.message.user {
    background: var(--tenant-color);
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.message.bot {
    background: var(--bot-bubble);
    color: var(--bot-bubble-text);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-color);
}

.message p {
    margin-bottom: 8px;
}

.message p:last-child {
    margin-bottom: 0;
}

.quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-self: flex-start;
    max-width: 90%;
}

.quick-reply-btn {
    background: rgba(99, 102, 241, 0.08);
    color: var(--tenant-color);
    border: 1px solid var(--tenant-color);
    border-radius: 20px;
    padding: 8px 14px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.quick-reply-btn:hover {
    background: var(--tenant-color);
    color: #fff;
    border-color: var(--tenant-color);
    transform: translateY(-1px);
}

.loading-indicator {
    display: none;
    align-self: flex-start;
    padding: 12px 18px;
    background: var(--bot-bubble);
    border-radius: 18px;
    border: 1px solid var(--border-color);
}

.loading-indicator.active {
    display: flex;
    gap: 5px;
    align-items: center;
}

.loading-dot {
    width: 7px;
    height: 7px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dot:nth-child(1) {
    animation-delay: -0.32s;
}

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

@keyframes bounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

.chat-input-container {
    padding: 16px 20px;
    background: var(--input-bar-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    align-items: center;
    transition: background 0.3s ease, border-color 0.3s ease;
}

.chat-input {
    flex: 1;
    padding: 14px 18px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    color: var(--text-main);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.3s;
}

.chat-input:focus {
    border-color: var(--tenant-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.send-button {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--tenant-color);
    border: none;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.send-button:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.powered-by {
    text-align: center;
    padding: 8px;
    font-size: 0.72rem;
    color: var(--text-muted);
    background: var(--powered-bg);
    border-top: 1px solid var(--border-color);
    transition: background 0.3s ease, color 0.3s ease;
}

.powered-by a {
    color: var(--tenant-color);
    text-decoration: none;
    font-weight: 600;
}

/* Chat Header Action Controls & Badges */
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.auth-status-btn {
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    padding: 5px 10px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
    backdrop-filter: blur(8px);
}

.auth-status-btn:hover {
    background: rgba(255, 255, 255, 0.28);
    transform: translateY(-1px);
}

.auth-status-btn.active {
    background: rgba(16, 185, 129, 0.25);
    border-color: rgba(16, 185, 129, 0.5);
    color: #34d399;
}

/* Authentication Gate Container (Private Mode Lock Screen) */
.auth-gate-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 20px;
    background: var(--card-bg);
    text-align: center;
    animation: fadeInAuth 0.3s ease;
}

.auth-card {
    max-width: 360px;
    width: 100%;
    background: var(--bot-bubble);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 28px 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.auth-card-icon {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--tenant-color), #312e81);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 16px auto;
    color: #fff;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.auth-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 6px;
}

.auth-card-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.45;
}

.auth-input-group {
    margin-bottom: 14px;
    text-align: left;
}

.auth-input-group label {
    display: block;
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.auth-input {
    width: 100%;
    padding: 12px 14px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 0.9rem;
    outline: none;
    transition: all 0.2s ease;
}

.auth-input:focus {
    border-color: var(--tenant-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.btn-unlock {
    width: 100%;
    padding: 12px;
    background: var(--tenant-color);
    border: none;
    border-radius: 12px;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-unlock:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.auth-error-msg {
    color: #ef4444;
    font-size: 0.78rem;
    margin-top: 10px;
    display: none;
    padding: 6px 10px;
    background: rgba(239, 68, 68, 0.12);
    border-radius: 8px;
}

/* Modal for Hybrid / Team Login */
.auth-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    z-index: 9999;
}

.auth-modal-overlay.active {
    display: flex;
    animation: fadeInAuth 0.2s ease;
}

@keyframes fadeInAuth {
    from { opacity: 0; transform: scale(0.98); }
    to { opacity: 1; transform: scale(1); }
}