/* ========== CSS RESET & NORMALIZE ========== */
/* Base reset styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========== CSS CUSTOM PROPERTIES ========== */
:root {
    /* Brand Colors */
    --primary: #ff6d00;
    --secondary: #ffab40;
    --dark: #000000;
    --light: #ffffff;
    
    /* State Colors */
    --success: #00e676;
    --warning: #ffd600;
    --error: #ff1744;
    --info: #00e5ff;
    
    /* UI Colors */
    --border: #ff6d0066;
    --shadow: #ff6d004D;
    --overlay: rgba(0, 0, 0, 0.7);
    --glass-bg: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-primary: 'Exo 2', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Chatbot Theme Colors */
    --chatbot-primary: #ff6d00;
    --chatbot-secondary: #ffab40;
    --chatbot-primary-light: #ff8f00;
    --chatbot-secondary-light: #ffcc80;
    --chatbot-primary-dark: #e65100;
    --chatbot-bg-dark: rgba(0, 0, 0, 0.85);
    --chatbot-message-user: rgba(255, 109, 0, 0.2);
    --chatbot-message-bot: rgba(0, 0, 0, 0.6);
    --chatbot-border: rgba(255, 109, 0, 0.4);
    --chatbot-shadow: rgba(255, 109, 0, 0.3);
    --chatbot-glow: rgba(255, 109, 0, 0.5);
    
    /* Theme Variables */
    --bg-primary: var(--dark);
    --bg-secondary: #121212;
    --text-primary: var(--light);
    --text-secondary: #94a3b8;
    --text-muted: #94a3b8;
    --accent-primary: var(--primary);
    --accent-secondary: var(--secondary);
    --accent-light: var(--secondary);
    --accent-dark: #e65100;
    --glow-effect: rgba(255, 109, 0, 0.3);
    --shadow-depth: rgba(0, 0, 0, 0.5);
    --header-height: 72px;
}

/* ========== TYPOGRAPHY ========== */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-secondary);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

/* ========== LAYOUT COMPONENTS ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

/* ========== UI COMPONENTS ========== */
/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 1rem;
    margin: 2rem 0;
}

/* Project Cards */
.project-card {
    background: var(--glass-bg);
    border-radius: var(--radius-xl);
    transition: transform var(--transition-normal) ease, box-shadow var(--transition-normal) ease;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px var(--shadow);
}

.project-card:focus-within {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--light);
    font-family: var(--font-primary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--border);
}

.cyber-button {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.cyber-button:hover {
    transform: translateY(-2px);
}

.cyber-button::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to bottom right,
        rgba(239, 87, 27, 0),
        rgba(239, 87, 27, 0),
        rgba(243, 200, 70, 0.3),
        rgba(239, 87, 27, 0)
    );
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cyber-button:hover::before {
    opacity: 1;
    animation: cyber-glow 1.2s infinite;
}

/* Cards */
.card {
    background: var(--glass-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--shadow);
}

.holographic-card {
    position: relative;
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.holographic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(243, 200, 70, 0.3);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    color: var(--light);
    transition: var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--shadow);
}

/* ========== UTILITY CLASSES ========== */
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }
.text-info { color: var(--info); }
.text-light { color: var(--light); }

.bg-primary { background-color: var(--primary); }
.bg-secondary { background-color: var(--secondary); }
.bg-dark { background-color: var(--dark); }
.bg-light { background-color: var(--light); }

.font-exo { font-family: var(--font-primary); }
.font-roboto { font-family: var(--font-secondary); }

.highlight-primary { color: var(--primary); }
.highlight-gradient { 
    background: linear-gradient(90deg, #1a1a1a 60%, var(--primary) 100%);
    color: #fff;
}

.gradient-text {
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== STATUS INDICATORS ========== */
.status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.9rem;
}

.status.online {
    background: rgba(0, 230, 118, 0.1);
    color: var(--success);
    border: 1px solid rgba(0, 230, 118, 0.3);
}

.status.warning {
    background: rgba(255, 214, 0, 0.1);
    color: var(--warning);
    border: 1px solid rgba(255, 214, 0, 0.3);
}

.status.error {
    background: rgba(255, 23, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(255, 23, 68, 0.3);
}

/* ========== GLASS EFFECTS ========== */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    box-shadow: 0 8px 32px var(--shadow);
}

/* ========== LOADING STATES ========== */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    animation: loading 1.5s infinite;
}

/* ========== HEADER STYLES ========== */
#main-header {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
    will-change: transform, opacity;
}

#main-header.header-hidden {
    transform: translateY(-100%);
    opacity: 0.8;
}

#main-header.header-visible {
    transform: translateY(0);
    opacity: 1;
}

.logo-link {
    line-height: 0 !important;
}

.logo-container {
    border: none !important;
    background: var(--bg-primary) !important;
}

.logo-glow-orange {
    filter: drop-shadow(0 0 16px var(--chatbot-primary));
}

.logo-glow-cyan {
    filter: drop-shadow(0 0 16px var(--chatbot-secondary));
}

/* ========== NAVIGATION ========== */
.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--chatbot-primary), var(--chatbot-secondary));
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

#nav-toggle {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.3s ease;
}

#nav-toggle:hover {
    color: var(--secondary);
}

/* ========== MOBILE MENU ========== */
.mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 45;
    background-color: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    padding: 1rem 0;
    transform: translateY(-20px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu.visible {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--light);
    text-decoration: none;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.mobile-menu a:hover {
    background-color: rgba(239, 87, 27, 0.1);
    color: var(--primary);
}

.mobile-menu .cyber-button {
    margin: 1rem;
    width: calc(100% - 2rem);
}

/* ========== CHATBOT INTERFACE ========== */
/* Floating Chat Button */
.floating-chat-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--chatbot-primary), var(--chatbot-secondary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--chatbot-shadow);
    z-index: 49;
    transition: all 0.3s ease-in-out;
    overflow: hidden;
    border: 2.5px solid var(--primary);
    animation: floating 3s ease-in-out infinite;
}

.floating-chat-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--chatbot-primary), var(--chatbot-secondary));
    border-radius: 50%;
    opacity: 0.7;
    z-index: -1;
    animation: pulse-ring 2s linear infinite;
}

.floating-chat-btn i {
    font-size: 1.8rem;
    transition: transform 0.3s ease;
    filter: drop-shadow(0 0 8px var(--chatbot-secondary));
}

.floating-chat-btn:hover {
    transform: translateY(-8px) scale(1.08) rotate(-6deg);
    box-shadow: 0 12px 40px 0 rgba(239, 87, 27, 0.3), 0 2px 12px 0 rgba(239, 87, 27, 0.5);
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
}

.floating-chat-btn:hover i {
    transform: scale(1.2);
}

.floating-chat-btn-shifted {
    bottom: 480px;
    right: 30px;
    transform: translateY(0) scale(1);
    opacity: 0.8;
}

/* Chat Interface */
#chatInterface {
    max-width: 420px;
    width: 100%;
    min-width: 320px;
    border-radius: 1.5rem 1.5rem 0 0;
    box-shadow: 0 8px 40px 0 var(--chatbot-glow), 0 2px 12px 0 var(--chatbot-shadow);
    background: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: slide-in-bottom 0.5s cubic-bezier(0.23, 1, 0.32, 1) forwards;
    transform-origin: bottom right;
}

#chatInterface.hidden {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
    pointer-events: none;
}

.chat-container {
    background: var(--chatbot-bg-dark);
    border-radius: 1.5rem 1.5rem 0 0;
    box-shadow: 0 8px 40px 0 var(--chatbot-glow), 0 2px 12px 0 var(--chatbot-shadow);
    border: 1.5px solid var(--chatbot-primary);
    backdrop-filter: blur(18px) saturate(1.2);
    animation: glow-subtle 3s infinite alternate;
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 600px;
    overflow: hidden;
}

.chat-header {
    background: linear-gradient(135deg, var(--chatbot-primary), var(--chatbot-secondary));
    color: var(--light);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--chatbot-border);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem;
    scroll-behavior: smooth;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 400px;
}

/* Message Styles */
.message {
    display: flex;
    gap: 0.75rem;
    width: 100%;
    max-width: 100%;
    animation: messageAppear 0.3s ease forwards;
    opacity: 0;
    margin-bottom: 1rem;
    align-items: flex-start;
}

.message-avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.75rem;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--chatbot-primary), var(--chatbot-secondary));
    color: white;
    box-shadow: 0 2px 10px var(--chatbot-shadow);
}

.user-avatar {
    margin-left: 0.75rem;
    margin-right: 0;
    background: linear-gradient(135deg, var(--chatbot-secondary), var(--chatbot-primary));
}

.message-content {
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    max-width: 85%;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
    line-height: 1.5;
    font-size: 0.95rem;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.message-content:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 109, 0, 0.1);
}

.bot-content {
    background: var(--chatbot-message-bot);
    border-left: 2px solid var(--chatbot-primary);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-top-left-radius: 0;
    margin-right: auto;
}

.bot-content::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--chatbot-message-user), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border-radius: inherit;
}

.bot-content:hover::after {
  opacity: 1;
}

.user-content {
    background: var(--chatbot-message-user);
    border-right: 2px solid var(--chatbot-primary);
    margin-left: auto;
    border-top-right-radius: 0;
    backdrop-filter: blur(10px);
}

.user-content::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(270deg, var(--chatbot-message-user), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border-radius: inherit;
}

.user-content:hover::after {
  opacity: 1;
}

.message-text {
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.6;
    font-size: 0.95rem;
    color: var(--light);
    opacity: 0.9;
}

.message-time {
    font-size: 0.7rem;
    color: var(--chatbot-primary-light);
    opacity: 0.7;
    margin-top: 0.25rem;
    text-align: right;
}

/* Typing Indicator */
.typing-indicator {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.typing-dots {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0.5rem;
    column-gap: 4px;
    min-height: 24px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--chatbot-primary);
    opacity: 0.6;
    animation: dot-flashing 1s infinite alternate;
}

.dot:nth-child(1) { animation-delay: 0s; }
.dot:nth-child(2) { animation-delay: 0.3s; }
.dot:nth-child(3) { animation-delay: 0.6s; }

/* Quick Replies */
.quick-replies {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    width: 100%;
}

.quick-replies-container {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 1rem;
    padding: 0.75rem;
    border-left: 2px solid var(--chatbot-primary);
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.quick-replies-label {
    color: var(--chatbot-primary-light);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
    opacity: 0.9;
}

.quick-replies-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.quick-reply-btn {
    background: rgba(255, 109, 0, 0.15);
    border: 1px solid rgba(255, 109, 0, 0.3);
    color: var(--light);
    border-radius: 1rem;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(10px);
    animation: fadeInUp 0.5s ease forwards;
}

.quick-reply-btn:hover {
    background: rgba(255, 171, 64, 0.2);
    border-color: var(--chatbot-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 109, 0, 0.15);
}

/* Chat Input */
.chat-input-area {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--chatbot-border);
    padding: 1rem;
}

.chat-input-wrapper {
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 109, 0, 0.1);
    border: 1px solid var(--chatbot-border);
    border-radius: 1rem;
    padding: 0.5rem;
}

.chat-input-field {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--light);
    padding: 0.5rem;
    min-height: 40px;
    max-height: 120px;
    resize: none;
    overflow-y: auto;
    overflow-x: hidden;
}

.chat-input-field:focus {
    outline: none;
    border-color: var(--chatbot-primary);
    box-shadow: 0 0 0 2px rgba(255, 109, 0, 0.1);
    transition: all 0.3s ease;
}

.chat-input-field::placeholder {
    color: var(--chatbot-primary-light);
    opacity: 0.5;
}

.chat-send-button {
    background: linear-gradient(135deg, var(--chatbot-primary), var(--chatbot-secondary));
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    cursor: pointer;
    transition: all 0.3s ease;
    animation: subtle-glow 2s infinite ease-in-out;
}

.chat-send-button:hover {
    transform: scale(1.05);
    background: linear-gradient(135deg, var(--chatbot-secondary), var(--chatbot-primary));
    box-shadow: 0 0 12px var(--chatbot-glow);
}

/* ========== HERO SECTION ========== */
.hero-section {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem;
    overflow: hidden;
    background: linear-gradient(135deg, 
        rgba(0, 0, 0, 0.95),
        rgba(0, 0, 0, 0.85)
    );
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--chatbot-primary), var(--chatbot-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: titleGlow 3s ease-in-out infinite;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--light);
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 3rem;
}

.hero-button {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.hero-button-primary {
    background: linear-gradient(135deg, var(--chatbot-primary), var(--chatbot-secondary));
    color: var(--light);
    border: none;
    box-shadow: 0 8px 30px rgba(255, 109, 0, 0.3);
}

.hero-button-secondary {
    background: transparent;
    color: var(--light);
    border: 2px solid var(--chatbot-primary);
    backdrop-filter: blur(10px);
}

.hero-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(255, 109, 0, 0.4);
}

.cta-button {
    box-shadow: 0 0 15px rgba(255, 109, 0, 0.5);
}

.cta-button:hover {
    box-shadow: 0 0 20px rgba(255, 109, 0, 0.7);
    transform: translateY(-2px);
}

/* ========== BACKGROUND EFFECTS ========== */
.effects-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 1;
}

.grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(239, 87, 27, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(239, 87, 27, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
}

.scanlines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 50%,
        rgba(0, 0, 0, 0.02) 51%
    );
    background-size: 100% 4px;
    pointer-events: none;
}

/* ========== ELEMENT EFFECTS ========== */
.glow {
    box-shadow: 0 0 10px rgba(243, 200, 70, 0.3),
                0 0 20px rgba(239, 87, 27, 0.4);
}

.glow-hover:hover {
    box-shadow: 0 0 15px rgba(239, 87, 27, 0.3),
                0 0 30px rgba(243, 200, 70, 0.3);
}

.neon-glow {
    text-shadow:
        0 0 8px var(--chatbot-primary),
        0 0 16px var(--chatbot-primary-light),
        0 0 32px var(--chatbot-secondary);
    animation: neonLogoGlow 3.5s ease-in-out infinite;
}

.neon-flicker {
    animation: neon-flicker 5s infinite ease-in-out;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 109, 0, 0.3);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 109, 0, 0.5);
}

/* ========== TOOLTIPS ========== */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--dark);
    color: var(--light);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

[data-tooltip]:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-8px);
}

/* ========== SCROLL EFFECTS ========== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--chatbot-primary), var(--chatbot-secondary));
    transform-origin: 0 50%;
    transform: scaleX(0);
    z-index: 1000;
}

.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--chatbot-primary), var(--chatbot-secondary));
    color: var(--light);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 100;
    box-shadow: 0 4px 15px rgba(255, 109, 0, 0.3);
}

.scroll-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(255, 109, 0, 0.4);
}

/* ========== ANIMATION KEYFRAMES ========== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

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

@keyframes slide-in-bottom {
    from {
        transform: translateY(20px) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

@keyframes glow-subtle {
    from {
        box-shadow: 0 8px 40px 0 var(--chatbot-glow), 0 2px 12px 0 var(--chatbot-shadow);
        border-color: var(--chatbot-border);
    }
    to {
        box-shadow: 0 12px 50px 0 var(--chatbot-glow), 0 4px 15px 0 var(--chatbot-shadow);
        border-color: rgba(255, 109, 0, 0.3);
    }
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.8);
        opacity: 0.8;
    }
    50% {
        transform: scale(1.2);
        opacity: 0;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

@keyframes floating {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-8px) translateX(4px);
    }
    50% {
        transform: translateY(0) translateX(8px);
    }
    75% {
        transform: translateY(8px) translateX(4px);
    }
}

@keyframes dot-flashing {
    0% {
        opacity: 0.2;
        transform: scale(0.8);
    }
    100% {
        opacity: 1;
        transform: scale(1);
        box-shadow: 0 0 10px var(--chatbot-glow);
    }
}

@keyframes titleGlow {
    0%, 100% {
        text-shadow: 
            0 0 20px rgba(255, 109, 0, 0.3),
            0 0 40px rgba(255, 109, 0, 0.2),
            0 0 60px rgba(255, 109, 0, 0.1);
    }
    50% {
        text-shadow: 
            0 0 30px rgba(255, 109, 0, 0.4),
            0 0 60px rgba(255, 109, 0, 0.3),
            0 0 90px rgba(255, 109, 0, 0.2);
    }
}

@keyframes neonLogoGlow {
    0%, 100% {
        text-shadow:
            0 0 8px var(--chatbot-primary),
            0 0 16px var(--chatbot-primary-light),
            0 0 32px var(--chatbot-secondary);
        color: var(--chatbot-primary);
    }
    50% {
        text-shadow:
            0 0 32px var(--chatbot-primary),
            0 0 64px var(--chatbot-secondary),
            0 0 96px var(--chatbot-secondary-light);
        color: #fff;
    }
}

@keyframes neon-flicker {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
        text-shadow: 0 0 5px rgba(239, 87, 27, 0.5),
                     0 0 10px rgba(243, 200, 70, 0.3),
                     0 0 15px rgba(239, 87, 27, 0.1);
    }
    20%, 24%, 55% {
        text-shadow: none;
    }
}

@keyframes cyber-glow {
    0% {
        left: -50%;
    }
    100% {
        left: 150%;
    }
}

@keyframes loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes subtle-glow {
    0%, 100% {
        box-shadow: 0 0 8px rgba(239,87,27,0.12);
    }
    50% {
        box-shadow: 0 0 16px rgba(239, 87, 27, 0.5);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }
    
    .container {
        padding: var(--spacing-md);
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    #nav-toggle {
        display: block;
    }
    
    .nav-links {
        display: none;
    }
    
    body.has-chat-open #main-header {
        display: none !important;
    }
    
    #chatInterface {
        max-width: 100vw;
        min-width: 0;
        right: 0;
        left: 0;
        bottom: 0;
        border-radius: 0;
        margin: 0;
    }
    
    .chat-container {
        border-radius: 0;
        padding: 1rem;
    }
    
    .floating-chat-btn {
        right: 16px;
        bottom: 16px;
        width: 52px;
        height: 52px;
    }
    
    .floating-chat-btn i {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-button {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}

@media (min-width: 601px) and (max-width: 768px) {
    #chatInterface {
        max-width: 90%;
        margin-right: 1rem;
        margin-left: 1rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .project-card {
        transition: none;
    }
}

@media (prefers-color-scheme: dark) {
    .project-card {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid var(--border);
    }
}