/* Design System */
:root {
    --primary-color: #1e3a8a;
    --primary-rgb: 30, 58, 138;
    --primary-dark: #1e40af;
    --secondary-color: #2c3e50;
    --secondary-light: #34495e;
    --text-color: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg-color: #f9f9f9;
    --bg-light: #ffffff;
    --bg-dark: #2c3e50;
    --border-color: #ddd;
    --success-color: #1e40af;
    --error-color: #e74c3c;
    
    /* Dark Theme Colors */
    --dark-bg-color: #1a1a2e;
    --dark-bg-light: #16213e;
    --dark-text-color: #e0e0e0;
    --dark-text-light: #b0b0b0;
    --dark-text-lighter: #808080;
    --dark-border-color: #0f3460;
    --dark-card-bg: #16213e;
    
    --font-primary: 'Poppins', 'Arial', sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Spacing Scale */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-full: 9999px;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Animation Timing */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-normal);
}

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style-type: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
    position: relative;
}

h3 {
    font-size: var(--font-size-2xl);
    color: var(--secondary-light);
}

p {
    margin-bottom: var(--spacing-md);
}

strong {
    font-weight: 600;
    color: var(--secondary-color);
}

/* Layout */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
    color: var(--text-color);
}

.section-underline {
    height: 4px;
    width: 70px;
    background-color: var(--primary-color);
    margin: 0 auto var(--spacing-md);
    border-radius: 2px;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: var(--font-size-base);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn i {
    font-size: var(--font-size-sm);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-normal);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.logo a {
    color: var(--primary-color);
    text-decoration: none;
}

.logo a:hover {
    color: var(--primary-dark);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-normal);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--dark-bg-color), var(--dark-bg-light), #0f3460);
    color: var(--dark-text-color);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    color: var(--dark-text-color);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--dark-text-light);
}

.hero-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    color: var(--dark-text-light);
}

.hero-cta {
    padding-top: 3.5rem; /* Increased padding to raise buttons higher */
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Neural Network Animation */
.neural-network {
    width: 100%;
    height: 400px;
    opacity: 0.8;
}

.node {
    fill: url(#gradient);
    stroke: #1e3a8a;
    stroke-width: 2;
    animation: pulse 2s infinite;
}

.connection {
    stroke: #1e3a8a;
    stroke-width: 2;
    opacity: 0.6;
    animation: flow 3s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

@keyframes flow {
    0% { stroke-dasharray: 0 100; }
    50% { stroke-dasharray: 100 0; }
    100% { stroke-dasharray: 0 100; }
}

/* Skills */
.skills-section {
    background-color: var(--bg-light);
    padding: var(--spacing-2xl) 0;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.skill-category {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.category-header i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    transition: transform var(--transition-normal);
}

.skill-category:hover .category-header i {
    transform: scale(1.1);
}

.category-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--secondary-color);
    margin: 0;
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.skill-name {
    font-weight: 500;
    color: var(--text-color);
    position: relative;
    padding-left: var(--spacing-md);
}

.skill-name::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.skill-bar {
    height: 8px;
    background-color: #f0f0f0;
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-full);
    transition: width 1s ease;
}

/* Portfolio */
.portfolio-section {
    background-color: var(--bg-color);
    padding: var(--spacing-2xl) 0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.portfolio-item {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.portfolio-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-img {
    height: 200px;
    overflow: hidden;
}

.portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

.portfolio-item:hover .portfolio-img img {
    transform: scale(1.05);
}

.portfolio-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--secondary-color);
}

.project-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: auto;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.project-link:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.project-link i {
    font-size: var(--font-size-sm);
}
/* Stack project links vertically and make them full width */
.stacked-links {
    flex-direction: column;
    align-items: stretch;
}

.project-link.full-width,
.btn.full-width {
    width: 100%;
    justify-content: center;
    text-align: center;
}


/* Contact */
.contact-section {
    background-color: var(--bg-light);
    padding: var(--spacing-2xl) 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
}

.contact-text h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--secondary-color);
}

.contact-text p {
    color: var(--text-light);
    margin: 0;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.social-link {
    width: 45px;
    height: 45px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
    transition: all var(--transition-normal);
}

.social-link:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

/* Center the contact form container */
.contact-form-container {
  max-width: 700px; /* wider form */
  margin: 0 auto;    /* center horizontally */
  padding: 20px;
  background: #ffffff; /* optional, gives form a white card look */
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1); /* optional shadow */
}

/* Make form fields fill the width */
.contact-form .form-group input,
.contact-form .form-group textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
}


.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 500;
    color: var(--secondary-color);
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-normal), box-shadow var(--transition-normal);
    box-shadow: var(--shadow-sm);
    outline: none;
    margin-top: var(--spacing-md);
    display: inline-block;
}
.submit-btn:hover, .submit-btn:focus {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-md);
    color: #fff;
}
.submit-btn:active {
    background-color: #233876;
}

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-logo h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
    color: #0f1f3d;
}

.footer-logo p {
    color: var(--dark-text-light);
    margin: 0;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.footer-links li a {
    color: var(--dark-text-light);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer-links li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--dark-border-color);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    color: var(--dark-text-lighter);
    margin: 0;
}

/* Responsive */
@media (max-width: 1024px) {
    :root {
        --container-padding: 1rem;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .skills-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-list {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
}

@media (max-width: 576px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.25rem;
        --container-padding: 1rem;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-cta {
        padding-top: var(--spacing-lg);
        gap: var(--spacing-md);
        flex-direction: row;
        justify-content: center;
        flex-wrap: nowrap;
    }
    
    .hero-cta .btn {
        flex: 0 1 auto;
        min-width: 140px;
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .contact-container {
        gap: var(--spacing-lg);
    }
    
    .project-links {
        flex-direction: column;
    }
    
    .project-link {
        justify-content: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Chatbot */
#chatbot-container {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 9999;
  font-family: inherit;
  pointer-events: none;
}

#chatbot-toggle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
    border: 1px solid #764ba2;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: auto;
  padding: 0;
  position: relative;
  overflow: hidden;
}

#chatbot-toggle::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 50%;
}

#chatbot-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
}

#chatbot-toggle:hover::before {
  opacity: 1;
}

#chatbot-toggle img {
  position: relative;
  z-index: 2;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

#chatbot-toggle:hover img {
  transform: scale(1.1);
}

#chatbot-window {
  display: none;
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 380px;
  max-width: 95vw;
  height: 520px;
  max-height: 80vh;
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  overflow: hidden;
  flex-direction: column;
  animation: chatbot-slide-up 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: auto;
  display: flex;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

@keyframes chatbot-slide-up {
  from { 
    transform: scale(0.9) translateY(40px); 
    opacity: 0; 
  }
  to { 
    transform: scale(1) translateY(0); 
    opacity: 1; 
  }
}

.chatbot-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.chatbot-header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  animation: header-shine 3s ease-in-out infinite;
}

@keyframes header-shine {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(180deg); }
}

.chatbot-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 16px;
  position: relative;
  z-index: 2;
}

.chatbot-title img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.chatbot-close {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  position: relative;
  z-index: 2;
}

.chatbot-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.chatbot-messages {
  flex: 1 1 auto;
  padding: 20px;
  overflow-y: auto;
  background: #f8fafc;
  color: #1a202c;
  font-size: 14px;
  word-break: break-word;
  scroll-behavior: smooth;
}

.chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

.chatbot-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chatbot-messages::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.2);
}

.chatbot-message {
  margin-bottom: 16px;
      animation: message-fade-in 1.2s ease-out;
}

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

.message-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  max-width: 85%;
}

.message-content.left {
  align-self: flex-start;
}

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

.message-row {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  gap: 8px;
}
.user-message .message-row {
  flex-direction: row-reverse;
}
.message-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.user-message .message-icon {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.bot-message .message-icon {
  background: #e2e8f0;
  color: #64748b;
}

.message-bubble {
  margin-bottom: 6px;
  align-self: stretch;
  background: white;
  border-radius: 18px;
  padding: 12px 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  position: relative;
  max-width: 100%;
  word-wrap: break-word;
}

.user-message .message-bubble {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-bottom-right-radius: 6px;
}

.bot-message .message-bubble {
  background: white;
  color: #1a202c;
  border-bottom-left-radius: 6px;
  border: 1px solid #e2e8f0;
}

.message-text {
  line-height: 1.5;
  font-size: 14px;
}

.message-text p {
  margin: 0 0 8px 0;
}

.message-text p:last-child {
  margin-bottom: 0;
}

.message-text strong {
  font-weight: 600;
  color: inherit;
}

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

.message-text li {
  margin-bottom: 4px;
}

.message-timestamp {
  font-size: 11px;
  color: #94a3b8;
  margin: 2px 0 0 0;
  opacity: 0.8;
  display: block;
  width: 100%;
}
.user-message .message-timestamp {
  text-align: right;
}
.bot-message .message-timestamp {
  text-align: left;
}

.typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 16px;
  background: white;
  border-radius: 18px;
  border-bottom-left-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid #e2e8f0;
  max-width: 60px;
  margin-bottom: 16px;
}

.typing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #cbd5e1;
  animation: typing-bounce 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing-bounce {
  0%, 80%, 100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

.chatbot-input-container {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  background: white;
  border-top: 1px solid #e2e8f0;
  pointer-events: auto;
  gap: 12px;
}

#chatbot-input {
  flex: 1;
  border: 2px solid #e2e8f0;
  border-radius: 24px;
  padding: 12px 16px;
  font-size: 14px;
  background: #f8fafc;
  color: #1a202c;
  outline: none;
  transition: all 0.2s ease;
  resize: none;
  min-height: 44px;
  max-height: 120px;
  line-height: 1.4;
}

#chatbot-input:focus {
  border-color: #667eea;
  background: white;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

#chatbot-input::placeholder {
  color: #94a3b8;
}

#chatbot-send {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

#chatbot-send:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

#chatbot-send:active {
  transform: scale(0.95);
}

#chatbot-tooltip {
  position: absolute;
  bottom: 70px;
      right: 2px;
  background: white;
  color: #1a202c;
  padding: 12px 16px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  pointer-events: none;
  border: 1px solid #e2e8f0;
}

#chatbot-tooltip.show {
  opacity: 1;
  transform: translateY(0);
}

#chatbot-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  right: 20px;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid white;
}

.bot-message .chatbot-feedback-btn,
.user-message .chatbot-feedback-btn {
  display: inline-block;
  margin: 0 2px;
}

.bot-message .chatbot-feedback-btn,
.user-message .chatbot-feedback-btn,
.bot-message .message-timestamp,
.user-message .message-timestamp {
  align-self: center;
}

.bot-message .chatbot-feedback-btn,
.user-message .chatbot-feedback-btn {
  margin-bottom: 2px;
}

@media (max-width: 600px) {
  #chatbot-window {
    width: 98vw;
    right: -10vw;
    min-width: 0;
    height: 75vh;
    max-height: 80vh;
    font-size: 14px;
  }
  
  .chatbot-header, .chatbot-messages, .chatbot-input-container {
    padding-left: 16px;
    padding-right: 16px;
  }
  
  #chatbot-input {
    font-size: 16px;
  }
  
  .message-content {
    max-width: 90%;
  }
}

@media (max-width: 600px) {
  section.hero .hero-cta {
    padding-top: 5rem !important;
  }
}

.thank-you-message {
  background: #f8fafc;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 2px 16px rgba(102, 126, 234, 0.08);
  color: #1a202c;
  margin: 32px auto;
  max-width: 400px;
  font-size: 1.1rem;
  transition: opacity 0.7s;
}
.thank-you-message h3 {
  margin-bottom: 12px;
  color: #667eea;
  font-size: 1.5rem;
  font-weight: 700;
}

/* Modal Styles */
/* Modal base styles */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  overflow: auto;
  background: rgba(0,0,0,0.5);
  justify-content: center;
  align-items: center;
}
.modal[aria-hidden="false"] {
  display: flex;
}
.modal-content {
  background: #fff;
  margin: 2rem auto auto auto; 
  border-radius: 12px;
  padding: 2rem 1.5rem;
  max-width: 500px;
  width: 90vw;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  position: relative;
  outline: none;
}
@media (max-width: 600px) {
  .modal-content {
    padding: 1rem 0.5rem;
    max-width: 95vw;
  }
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 2rem;
  color: #333;
  cursor: pointer;
}
/* Tule Initiative deployment alert modal */
#tule-alert-modal .modal-content {
  max-width: 350px;
  text-align: center;
  padding: 2rem 1rem;
}