/* ============================================
   GEMINI AI CHATBOT — DESIGN SYSTEM
   ============================================ */

:root {
    --bg-color: #07080d;
    --card-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --accent-primary: #8e2de2;
    --accent-secondary: #4a00e0;
    --accent-glow: rgba(142, 45, 226, 0.4);
    --accent-cyan: #00d4ff;
    --text-main: #f0f0f0;
    --text-dim: #8a8a8a;
    --text-muted: #555;
    --user-msg-bg: linear-gradient(135deg, #8e2de2, #4a00e0);
    --ai-msg-bg: rgba(255, 255, 255, 0.06);
    --danger: #ff4d4d;
    --success: #00e676;
    --warning: #ffab40;
    --font-family: 'Outfit', sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============ RESET ============ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* ============ BACKGROUND ORBS ============ */
.orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    z-index: 0;
    opacity: 0.3;
    pointer-events: none;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-primary);
    top: -150px;
    left: -150px;
    animation: orbit1 25s infinite alternate ease-in-out;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: -100px;
    right: -100px;
    animation: orbit2 20s infinite alternate ease-in-out;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-cyan);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.1;
    animation: orbit3 30s infinite alternate ease-in-out;
}

@keyframes orbit1 {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(80px, 60px) scale(1.1); }
    100% { transform: translate(40px, 120px) scale(0.95); }
}

@keyframes orbit2 {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-60px, -80px) scale(1.05); }
    100% { transform: translate(-100px, -40px) scale(1.1); }
}

@keyframes orbit3 {
    0% { transform: translate(-50%, -50%) scale(1); }
    100% { transform: translate(-30%, -70%) scale(1.3); }
}

/* ============ APP CONTAINER ============ */
.app-container {
    width: 100%;
    max-width: 1000px;
    height: 95vh;
    background: var(--card-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.6),
                inset 0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

/* ============ HEADER ============ */
header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.header-left { display: flex; align-items: center; gap: 12px; }
.header-right { display: flex; align-items: center; gap: 10px; }

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.5px;
}

.logo i {
    font-size: 1.2rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo .accent {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.icon-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
    font-size: 0.85rem;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border-color: var(--glass-border-hover);
}

.status-badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    transition: var(--transition);
}

.status-badge.online {
    background: rgba(0, 230, 118, 0.1);
    color: var(--success);
    border: 1px solid rgba(0, 230, 118, 0.2);
}

.status-badge.offline {
    background: rgba(255, 77, 77, 0.1);
    color: var(--danger);
    border: 1px solid rgba(255, 77, 77, 0.2);
}

.status-badge.warning {
    background: rgba(255, 171, 64, 0.1);
    color: var(--warning);
    border: 1px solid rgba(255, 171, 64, 0.2);
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    transition: var(--transition);
}

.status-badge.online .dot {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.status-badge.offline .dot {
    background: var(--danger);
    box-shadow: 0 0 8px var(--danger);
}

.status-badge.warning .dot {
    background: var(--warning);
    box-shadow: 0 0 8px var(--warning);
}

/* ============ CHAT AREA ============ */
main {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}

main::-webkit-scrollbar { width: 5px; }
main::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
}

/* Welcome Screen */
.welcome-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    max-width: 650px;
    margin: 0 auto;
    padding: 20px;
}

.welcome-icon {
    font-size: 3.5rem;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 20px var(--accent-glow));
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.welcome-screen h1 {
    font-size: 2.2rem;
    margin-bottom: 12px;
    font-weight: 800;
    background: linear-gradient(to right, #fff, #999);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-screen p {
    color: var(--text-dim);
    margin-bottom: 32px;
    font-size: 1rem;
    line-height: 1.6;
}

.suggestions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
}

.suggestion-chip {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    padding: 14px 18px;
    border-radius: var(--radius-md);
    color: var(--text-dim);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-size: 0.85rem;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 10px;
}

.suggestion-chip i {
    color: var(--accent-primary);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.suggestion-chip:hover {
    background: rgba(142, 45, 226, 0.15);
    border-color: rgba(142, 45, 226, 0.3);
    color: var(--text-main);
    transform: translateY(-2px);
}

/* ============ MESSAGES ============ */
.messages-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    max-width: 85%;
    padding: 14px 18px;
    border-radius: var(--radius-lg);
    line-height: 1.65;
    font-size: 0.95rem;
    animation: msgIn 0.35s ease forwards;
    word-wrap: break-word;
}

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

.message.user {
    align-self: flex-end;
    background: var(--user-msg-bg);
    border-bottom-right-radius: 4px;
    box-shadow: 0 8px 20px -6px rgba(142, 45, 226, 0.35);
}

.message.ai {
    align-self: flex-start;
    background: var(--ai-msg-bg);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--glass-border);
}

.message.ai .message-content { min-height: 1em; }

/* Markdown rendering */
.message pre {
    background: rgba(0, 0, 0, 0.4);
    padding: 14px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 10px 0;
    border: 1px solid var(--glass-border);
}

.message code {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.88em;
}

.message :not(pre) > code {
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: 4px;
}

.message ul, .message ol {
    padding-left: 20px;
    margin: 8px 0;
}

.message li { margin: 4px 0; }

.message h1, .message h2, .message h3 {
    margin: 12px 0 6px;
    font-weight: 600;
}

/* Typing Indicator */
.typing {
    display: flex;
    gap: 5px;
    padding: 6px 0;
}

.typing span {
    width: 8px;
    height: 8px;
    background: var(--text-dim);
    border-radius: 50%;
    animation: bounce 1.2s infinite;
}

.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes bounce {
    0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
    40% { transform: translateY(-6px); opacity: 1; }
}

/* ============ INPUT AREA ============ */
.input-area {
    padding: 16px 24px 24px;
    border-top: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.input-wrapper {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    display: flex;
    align-items: flex-end;
    padding: 8px 12px;
    gap: 10px;
    transition: var(--transition);
}

.input-wrapper:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(142, 45, 226, 0.1);
}

textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    resize: none;
    outline: none;
    max-height: 120px;
    padding: 6px 4px;
    line-height: 1.5;
}

textarea::placeholder { color: var(--text-muted); }

#send-btn {
    background: var(--accent-primary);
    color: #fff;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
    flex-shrink: 0;
    font-size: 0.85rem;
}

#send-btn:hover:not(:disabled) {
    background: var(--accent-secondary);
    transform: scale(1.05);
}

#send-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.disclaimer {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 12px;
}

/* ============ SETTINGS MODAL ============ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    width: 90%;
    max-width: 520px;
    background: rgba(18, 20, 30, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    transform: translateY(20px) scale(0.97);
    transition: var(--transition);
    max-height: 85vh;
    overflow-y: auto;
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-header {
    padding: 24px 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-header h2 i {
    color: var(--accent-primary);
}

.modal-close {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: rgba(255, 77, 77, 0.15);
    color: var(--danger);
    border-color: rgba(255, 77, 77, 0.3);
}

.modal-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.modal-footer {
    padding: 0 24px 24px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Setting Groups */
.setting-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.setting-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 8px;
}

.setting-label i { color: var(--accent-primary); font-size: 0.8rem; }

.setting-hint {
    color: var(--text-muted);
    font-size: 0.72rem;
    line-height: 1.4;
}

/* Provider Cards */
.provider-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.provider-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.provider-card:hover {
    border-color: var(--glass-border-hover);
    background: rgba(255, 255, 255, 0.06);
}

.provider-card.active {
    border-color: var(--accent-primary);
    background: rgba(142, 45, 226, 0.08);
}

.provider-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.provider-card[data-provider="google-gemini"] .provider-icon {
    background: linear-gradient(135deg, #4285f4, #34a853);
    color: white;
}

.provider-info strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.provider-info small {
    color: var(--text-dim);
    font-size: 0.75rem;
}

.check-icon {
    margin-left: auto;
    color: var(--accent-primary);
    opacity: 0;
    transition: var(--transition);
}

.provider-card.active .check-icon { opacity: 1; }

/* API Key Input */
.api-key-wrapper {
    display: flex;
    gap: 8px;
}

.api-key-wrapper input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-main);
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    outline: none;
    transition: var(--transition);
}

.api-key-wrapper input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(142, 45, 226, 0.1);
}

.api-key-wrapper input::placeholder { color: var(--text-muted); }

.toggle-visibility {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    width: 40px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.toggle-visibility:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.1);
}

/* Select */
select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238a8a8a' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(142, 45, 226, 0.1);
}

select option, select optgroup {
    background: #12141e;
    color: var(--text-main);
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

/* Connection Result */
.connection-result {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    display: none;
    align-items: center;
    gap: 8px;
    animation: msgIn 0.3s ease;
}

.connection-result.success {
    display: flex;
    background: rgba(0, 230, 118, 0.1);
    color: var(--success);
    border: 1px solid rgba(0, 230, 118, 0.2);
}

.connection-result.error {
    display: flex;
    background: rgba(255, 77, 77, 0.1);
    color: var(--danger);
    border: 1px solid rgba(255, 77, 77, 0.2);
}

.connection-result.testing {
    display: flex;
    background: rgba(142, 45, 226, 0.1);
    color: var(--accent-primary);
    border: 1px solid rgba(142, 45, 226, 0.2);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .app-container {
        height: 100vh;
        border-radius: 0;
        max-width: 100%;
    }

    .suggestions { grid-template-columns: 1fr; }

    .welcome-screen h1 { font-size: 1.6rem; }

    header { padding: 12px 16px; }
    main { padding: 16px; }
    .input-area { padding: 12px 16px 16px; }
    .modal { width: 95%; }
}