/* Modern Base styles */
:root {
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --secondary: #1e293b;
    --background: #f8fafc;
    --white: #ffffff;
    --dark: #0f172a;
    --border: #e2e8f0;
    --success: #10b981;
    --info: #3b82f6;
    --info-light: #f1f5ff;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--background);
    min-height: 100vh;
    min-height: calc(var(--vh, 1vh) * 100);
    -webkit-overflow-scrolling: touch;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.advisor-container {
    width: 100%;
    min-height: 100vh;
    min-height: calc(var(--vh, 1vh) * 100);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    background-color: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--white);
    height: calc(100vh - 60px);
    height: calc(calc(var(--vh, 1vh) * 100) - 60px);
    overflow: hidden;
    padding-top: max(20px, env(safe-area-inset-top));
    padding-bottom: env(safe-area-inset-bottom);
    position: relative;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    -webkit-overflow-scrolling: touch;
    background-color: var(--white);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: env(safe-area-inset-bottom);
    scroll-behavior: smooth;
}

.message {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    width: 100%;
    max-width: 85%;
    padding: 0 env(safe-area-inset-right) 0 env(safe-area-inset-left);
}

.message.ai {
    align-self: flex-start;
}

.message.user {
    flex-direction: row-reverse;
    align-self: flex-end;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    font-size: 14px;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease;
}

.avatar:hover {
    transform: scale(1.05);
}

.avatar.ai {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.avatar.user {
    background: linear-gradient(135deg, var(--secondary), var(--dark));
}

.message-content {
    padding: 1rem 1.25rem;
    border-radius: 16px;
    font-size: 16px;
    line-height: 1.6;
    word-wrap: break-word;
    position: relative;
    flex: 1;
    max-width: calc(100% - 60px);
    -webkit-touch-callout: none;
    user-select: text;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease;
}

.message-content:hover {
    transform: translateY(-1px);
}

.message.ai .message-content {
    background: #f1f5ff;
    border-top-left-radius: 4px;
    color: var(--dark);
}

.message.user .message-content {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border-top-right-radius: 4px;
}

.input-container {
    padding: 1rem;
    border-top: 1px solid var(--border);
    background: var(--white);
    padding-bottom: max(1rem, env(safe-area-inset-bottom));
    box-shadow: var(--shadow);
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 0.75rem;
}

.option-button {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--primary);
    background: var(--white);
    color: var(--primary);
    border-radius: 12px;
    font-size: 16px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    touch-action: manipulation;
    margin: 0;
    height: auto;
    line-height: 1.4;
    min-height: 48px;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    overflow: hidden;
}

.option-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: var(--primary);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.3s ease;
}

.option-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.option-button:active {
    transform: translateY(1px);
}

.option-button.selected {
    background: var(--primary);
    color: var(--white);
    transform: scale(0.98);
}

.option-button.selected::before {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0.1;
}

.continue-button {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    color: var(--white);
    width: 100%;
    margin-top: 1rem;
    padding: 1rem 1.25rem;
    font-weight: 600;
    transform-origin: center;
    animation: pulseButton 2s infinite;
}

.continue-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.typewriter {
    display: inline-block;
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    position: relative;
}

.message.ai:last-of-type .typewriter::after {
    content: '';
    position: absolute;
    right: -2px;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--primary);
    animation: blink-caret 0.75s step-end infinite;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes blink-caret {
    from, to { opacity: 0; }
    50% { opacity: 1; }
}

@keyframes pulseButton {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

/* Scrollbar Styling */
.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: var(--background);
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
    transition: background 0.3s ease;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* Mobile Optimizations */
@media (max-width: 767px) {
    .advisor-container {
        border-radius: 0;
    }

    .chat-container {
        height: calc(100vh - 120px);
        height: calc(calc(var(--vh, 1vh) * 100) - 120px);
    }

    .message {
        max-width: 92%;
    }

    .message-content {
        font-size: 15px;
        padding: 0.875rem 1rem;
    }

    .avatar {
        width: 36px;
        height: 36px;
        font-size: 13px;
    }

    .option-button {
        padding: 0.875rem 1rem;
        font-size: 15px;
        min-height: 44px;
    }
}

/* Loading Animation */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 8px;
    background: var(--background);
    border-radius: 12px;
    margin-top: 4px;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    animation: typingAnimation 1.4s infinite;
    opacity: 0.3;
}

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

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

@keyframes typingAnimation {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* Success Animation */
.success-checkmark {
    width: 20px;
    height: 20px;
    position: relative;
    display: inline-block;
    margin-left: 8px;
}

.success-checkmark::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg) scale(0);
    width: 8px;
    height: 16px;
    border: solid var(--success);
    border-width: 0 2px 2px 0;
    animation: checkmark 0.3s ease-in-out forwards;
}

@keyframes checkmark {
    from {
        transform: translate(-50%, -50%) rotate(45deg) scale(0);
    }
    to {
        transform: translate(-50%, -50%) rotate(45deg) scale(1);
    }
}

/* Remove Bootstrap container padding on mobile */
@media (max-width: 767px) {
    .container {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
    }
    
    .row {
        margin-left: 0;
        margin-right: 0;
    }
    
    .col-lg-10 {
        padding-left: 0;
        padding-right: 0;
    }
    
    .card {
        border: none;
        border-radius: 0;
    }
    
    .mt-5 {
        margin-top: 0 !important;
    }
}

/* Fix for iOS notch and home indicator */
@supports (padding: max(0px)) {
    .advisor-container {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
        padding-bottom: max(0px, env(safe-area-inset-bottom));
    }

    .chat-container {
        padding-top: max(20px, env(safe-area-inset-top));
    }

    .input-container {
        padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
    }
}

/* Tablet and desktop styles */
@media (min-width: 768px) {
    .advisor-container {
        max-width: 1200px;
        margin: 2rem auto;
        padding: 0 2rem;
        height: auto;
        border-radius: 15px;
        box-shadow: 0 0 30px rgba(0, 0, 0, 0.1);
    }

    .chat-container {
        height: 600px;
        border-radius: 15px;
    }

    .options-container {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
        padding: 1rem;
    }

    .option-button {
        width: auto;
        min-width: 120px;
    }

    .message-content {
        max-width: 70%;
    }

    .avatar {
        width: 40px;
        height: 40px;
        margin: 0 1rem;
    }

    .message {
        margin-bottom: 1.5rem;
    }
}

/* Info Message Styles */
.info-message {
    background: var(--info-light);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
    animation: fadeInDown 0.5s ease-out;
}

.info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.info-text {
    color: var(--dark);
    font-size: 0.95rem;
    line-height: 1.5;
}

.info-text strong {
    color: var(--primary);
    font-weight: 600;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Optimizations for Info Message */
@media (max-width: 767px) {
    .info-message {
        margin: 1rem;
        padding: 0.875rem 1rem;
        border-radius: 8px;
    }
    
    .info-text {
        font-size: 0.9rem;
    }
}