:root {
    --primary-color: #81f806;
    --primary-dark: #69cc03;
    --primary-light: #a4ff46;
    --secondary-color: #000000;
    --secondary-dark: #000000;
    --accent-color: #FF4081;
    
    --background: #F8F9FE;
    --surface: #FFFFFF;
    --surface-variant: #F3F4F6;
    --error: #DC3545;
    --success: #28A745;
    --warning: #FFC107;
    
    
    --text-primary: #2C3E50;
    --text-secondary: #000;
    --text-tertiary: #94A3B8;
    --text-on-primary: #FFFFFF;
    --text-on-secondary: #FFFFFF;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.35s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: none;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 60%);
}

.btn:hover::after {
    transform: translate(-50%, -50%) scale(2);
}

.img-plus-blance {
    width: 19px;
    border-radius: 10px;
    background:  var(--primary-color);
    color: fff;
    padding: 2px;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-on-primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--text-on-secondary);
}

.btn-secondary:hover {
    background: var(--secondary-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-on-primary);
}

.main-container {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    width: 100%;
    display: flex;
    flex-direction: column;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--primary-light);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.message-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    opacity: 0;
    transform: translateY(20px);
    animation: slideMessage 0.3s ease forwards;
}

@keyframes slideMessage {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    position: relative;
    transition: all var(--transition-normal);
}

.message-user {
    background: var(--surface);
    margin-left: auto;
    max-width: 80%;
    box-shadow: var(--shadow-sm);
    border-bottom-right-radius: 4px;
}

.message-ai {
    background: var(--surface-variant);
    margin-right: auto;
    max-width: 100%;
    border-bottom-left-radius: 4px;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.message-user .message-avatar {
    background: var(--primary-light);
    color: var(--text-on-primary);
}

.message-ai .message-avatar {
    background: var(--secondary-color);
    color: var(--text-on-secondary);
}

.message-content {
    flex: 1;
    min-width: 0;
}

.message-text {
    word-wrap: break-word;
    white-space: pre-wrap;
}

.message-time {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

.message-actions {
    position: absolute;
    right: var(--spacing-md);
    top: var(--spacing-md);
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.message:hover .message-actions {
    opacity: 1;
}

.message-action-btn {
    background: transparent;
    border: none;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.message-action-btn:hover {
    background: rgba(0,0,0,0.05);
    color: var(--primary-color);
}

.input-container {
    position: sticky;
    bottom: 0;
    background: var(--surface);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-top: auto;
    transition: all var(--transition-normal);
}

.input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.textarea-wrapper {
    flex: 1;
    position: relative;
}

textarea {
    width: 100%;
    min-height: 60px;
    max-height: 200px;
    padding: var(--spacing-md);
    border: 2px solid var(--surface-variant);
    border-radius: var(--radius-md);
    resize: none;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
    transition: all var(--transition-normal);
    background: var(--surface-variant);
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--surface);
}

.input-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn {
    background: transparent;
    border: none;
    padding: var(--spacing-sm);
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background: var(--surface-variant);
    color: var(--primary-color);
}

.send-btn {
    background: var(--primary-color);
    color: var(--text-on-primary);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

.send-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(5px);
}

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

.modal-content {
    background: var(--surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    position: relative;
    transform: translateY(20px);
    transition: all var(--transition-normal);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.subscription-plans {
    display: grid;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.plan-card {
    background: var(--surface-variant);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.plan-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.plan-price {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.plan-features {
    list-style: none;
    margin: var(--spacing-md) 0;
}

.plan-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--surface);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: toastSlideUp 0.3s ease forwards;
}

@keyframes toastSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.loading-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.loading-dots {
    display: flex;
    gap: 4px;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: loadingDot 1s infinite ease-in-out;
}

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

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

@keyframes loadingDot {
    0%, 100% { transform: scale(0.3); }
    50% { transform: scale(1); }
}
		
.floating-button {
    position: fixed;
    right: var(--spacing-lg);
    bottom: calc(var(--spacing-lg) + 160px); 
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--error);
    color: var(--text-on-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    z-index: 900;
    opacity: 0;
    transform: scale(0);
}

.floating-button.visible {
    opacity: 1;
    transform: scale(1);
}

.floating-button:hover {
    background: #c41e3a;
    transform: scale(1.1);
}

.floating-button .tooltip {
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--surface);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    white-space: nowrap;
    margin-right: var(--spacing-md);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.floating-button:hover .tooltip {
    opacity: 1;
    visibility: visible;
}



@keyframes fadeOut {
    from { opacity: 1; transform: scale(1); }
    to { opacity: 0; transform: scale(0.8); }
}

.message-container.removing {
    animation: fadeOut 0.3s ease forwards;
}