:root {
    --bg: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --accent: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.3);
    --text: #f1f5f9;
    --text-dim: #94a3b8;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    filter: blur(80px);
}

.blob {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--accent-glow);
    opacity: 0.4;
    animation: move 20s infinite alternate;
}

.blob-1 {
    top: -100px;
    left: -100px;
    background: #6366f1;
}

.blob-2 {
    bottom: -100px;
    right: -100px;
    background: #38bdf8;
}

.blob-3 {
    top: 40%;
    left: 50%;
    width: 500px;
    height: 500px;
    background: #1e1b4b;
}

@keyframes move {
    from {
        transform: translate(0, 0);
    }

    to {
        transform: translate(50px, 50px);
    }
}

.app-container {
    width: 90%;
    max-width: 900px;
    height: 85vh;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    position: relative;
}

header {
    padding: 20px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-icon {
    font-size: 1.5rem;
}

h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
}

h1 span {
    color: var(--accent);
}

/* BYOK Settings */
.settings-toggle {
    margin-left: auto;
    margin-right: 15px;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.settings-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: rotate(30deg);
}

.settings-panel {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 16px;
    padding: 24px;
    margin: 0 20px 25px 20px;
    display: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 1000;
}

.settings-panel.active {
    display: block;
}

.settings-panel h3 {
    margin: 0 0 20px 0;
    font-size: 1.1rem;
    color: var(--accent);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.settings-group {
    margin-bottom: 16px;
}

.settings-group label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.settings-group input {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 10px 14px;
    color: white;
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.3s;
}

.settings-group input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 0, 0, 0.6);
}

.settings-note {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 15px;
    font-style: italic;
}

.status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 10px #10b981;
}

main {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.welcome-message {
    text-align: center;
    padding: 40px 20px;
    max-width: 600px;
    margin: auto;
}

.welcome-message h2 {
    font-family: 'Outfit', sans-serif;
    margin-bottom: 15px;
}

.welcome-message p {
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 25px;
}

.suggestions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.suggestions button {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.suggestions button:hover {
    background: var(--accent-glow);
    border-color: var(--accent);
}

/* Chat Messages */
.message {
    max-width: 80%;
    padding: 14px 18px;
    border-radius: 18px;
    font-size: 0.95rem;
    line-height: 1.5;
    word-wrap: break-word;
}

.user-message {
    align-self: flex-end;
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    border-bottom-right-radius: 4px;
}

.bot-message {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom-left-radius: 4px;
}

.loading-msg {
    padding: 10px 18px;
}

.typing-indicator {
    display: flex;
    gap: 5px;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--text-dim);
    border-radius: 50%;
    animation: bounce 1.4s infinite;
}

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

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

@keyframes bounce {

    0%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-6px);
    }
}

/* Footer & Input */
footer {
    padding: 20px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 10px;
    gap: 15px;
}

textarea {
    flex: 1;
    background: none;
    border: none;
    color: white;
    resize: none;
    font-family: inherit;
    font-size: 1rem;
    max-height: 150px;
    padding: 5px;
}

textarea:focus {
    outline: none;
}

#send-btn {
    background: var(--accent);
    color: black;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: transform 0.2s;
}

#send-btn:hover {
    transform: scale(1.05);
}

#send-btn svg {
    width: 20px;
    height: 20px;
}

.pipeline-stats {
    margin-top: 15px;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-dim);
}