:root {
    --saffron: #ff6f00;
    --saffron-light: #fff3e0;
    --vermilion: #e65100;
    --sacred-red: #c62828;
    --cream-bg: #fcf8f2;
    --border-color: #ebd6b8;
    --text-main: #2a1a14;
    --text-muted: #6d584f;
    --user-bubble: #fcefdc;
    --guru-bubble: #ffffff;
    --sidebar-bg: #f3e9d4;
    --glass-bg: rgba(255, 251, 244, 0.85);
    --shadow-sm: 0 2px 8px rgba(230, 81, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(42, 26, 20, 0.06);
    --shadow-lg: 0 16px 48px rgba(230, 81, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f7f0e3;
    color: var(--text-main);
    display: flex;
    height: 100vh;
    overflow: hidden;
    letter-spacing: -0.01em;
}

.app-container {
    display: flex;
    width: 100%;
    height: 100vh;
}

/* Chat Section Canvas */
.chat-main-section {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 32px;
    background-image: 
        radial-gradient(rgba(230, 81, 0, 0.05) 1.5px, transparent 1.5px),
        radial-gradient(rgba(230, 81, 0, 0.02) 1px, transparent 1px);
    background-size: 24px 24px, 12px 12px;
    background-position: 0 0, 12px 12px;
}

/* Glassmorphic Workspace Frame */
.phone-wrapper {
    width: 100%;
    max-width: 720px;
    height: 100%;
    max-height: 900px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(230, 81, 0, 0.15);
    border-radius: 28px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

/* Dynamic Top Header */
.app-header {
    background: linear-gradient(135deg, #3a2219, #23120b);
    color: white;
    padding: 24px 28px;
    text-align: left;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-bottom: 2px solid var(--saffron);
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.app-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--saffron), var(--vermilion), var(--sacred-red));
}

.app-header h1 {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fffcf7;
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-header p {
    font-size: 0.85rem;
    opacity: 0.75;
    font-weight: 400;
    padding-left: 2px;
}

/* Chat Feed Window */
.chat-stream {
    flex: 1;
    padding: 28px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: rgba(255, 253, 250, 0.6);
    scroll-behavior: smooth;
}

/* Message Bubble Ecosystem */
.bubble {
    max-width: 80%;
    padding: 16px 20px;
    border-radius: 20px;
    line-height: 1.6;
    font-size: 0.98rem;
    white-space: pre-line;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: all 0.2s ease;
    word-wrap: break-word;
}

.user-msg {
    background-color: var(--user-bubble);
    color: var(--text-main);
    align-self: flex-end;
    border-top-right-radius: 4px;
    border: 1px solid rgba(230, 81, 0, 0.12);
    font-weight: 500;
}

.guru-msg {
    background-color: var(--guru-bubble);
    color: var(--text-main);
    align-self: flex-start;
    border-top-left-radius: 4px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

/* Rich text inline variables formatting inside chat responses */
.guru-msg strong {
    color: var(--vermilion);
    font-weight: 600;
}

/* Fluid Dot Wave Loader */
.loading-holder {
    align-self: flex-start;
    display: none;
    gap: 6px;
    padding: 16px 24px;
    background: var(--guru-bubble);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    align-items: center;
}

.dot {
    width: 7px;
    height: 7px;
    background: var(--saffron);
    border-radius: 50%;
    animation: wave 1.2s infinite ease-in-out;
    opacity: 0.8;
}
.dot:nth-child(2) { animation-delay: 0.2s; background: var(--vermilion); }
.dot:nth-child(3) { animation-delay: 0.4s; background: var(--sacred-red); }

@keyframes wave {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* Lower Control Input Dock */
.input-footer {
    background: #ffffff;
    padding: 20px 28px;
    border-top: 1px solid rgba(230, 81, 0, 0.1);
    display: flex;
    gap: 14px;
    align-items: center;
    box-shadow: 0 -4px 20px rgba(42, 26, 20, 0.02);
}

.input-footer input {
    flex: 1;
    padding: 16px 24px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    font-size: 1rem;
    outline: none;
    background: #fffdfa;
    color: var(--text-main);
    transition: all 0.2s ease;
}

.input-footer input::placeholder {
    color: #a38f85;
}

.input-footer input:focus {
    border-color: var(--saffron);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(255, 111, 0, 0.1);
}

.input-footer button {
    background: linear-gradient(135deg, var(--saffron), var(--vermilion));
    color: white;
    border: none;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(230, 81, 0, 0.25);
}

.input-footer button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 81, 0, 0.35);
}

/* Sidebar Panel Workspace */
.right-sidebar {
    width: 360px;
    background-color: var(--sidebar-bg);
    border-left: 1px solid rgba(230, 81, 0, 0.1);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
}

.sidebar-title {
    font-size: 1rem;
    font-weight: 800;
    color: #4e3629;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 12px;
    text-align: center;
}

.sidebar-scroll-container {
    flex: 1;
    overflow-y: auto;
    padding-right: 6px;
}

.sidebar-scroll-container::-webkit-scrollbar {
    width: 5px;
}
.sidebar-scroll-container::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 10px;
}

/* Modular AI Selector Cards */
.ai-card {
    background: #ffffff;
    border: 1px solid rgba(230, 81, 0, 0.08);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-sm);
}

.ai-card:hover {
    transform: translateX(-4px);
    box-shadow: var(--shadow-md);
}

.ai-card.active {
    background: #fffdf9;
    border-left: 5px solid var(--saffron);
    box-shadow: var(--shadow-md);
}

.ai-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.ai-card-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Viewport Adjustments for Tablet / Mobile */
@media (max-width: 950px) {
    body { flex-direction: column; }
    .app-container { flex-direction: column-reverse; }
    .right-sidebar {
        width: 100%;
        height: 280px;
        border-left: none;
        border-top: 1px solid var(--border-color);
    }
    .chat-main-section { padding: 16px; flex: 1; }
    .phone-wrapper { max-height: 100%; border-radius: 20px; }
}