/* ============================================
   Emirates IT Solution - Futuristic Portfolio
   Main Stylesheet
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #00f0ff;
    --secondary-color: #ff00ff;
    --accent-color: #00ff88;
    --dark-bg: #0a0a0f;
    --darker-bg: #050508;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --neon-blue: #00f0ff;
    --neon-pink: #ff00ff;
    --neon-green: #00ff88;
    
    /* Fonts */
    --font-primary: 'Orbitron', sans-serif;
    --font-secondary: 'Rajdhani', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Effects */
    --glow-intensity: 0 0 20px;
    --shadow-neon-blue: 0 0 20px rgba(0, 240, 255, 0.5);
    --shadow-neon-pink: 0 0 20px rgba(255, 0, 255, 0.5);
    --shadow-neon-green: 0 0 20px rgba(0, 255, 136, 0.5);
}

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

html {
    scroll-behavior: smooth;
}

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

/* Animated Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #0a0a0f 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    will-change: background-position;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    will-change: transform;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(0, 240, 255, 0.3), transparent),
        radial-gradient(2px 2px at 60% 70%, rgba(255, 0, 255, 0.3), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(0, 255, 136, 0.3), transparent);
    background-size: 200% 200%;
    animation: particlesMove 30s ease infinite;
    will-change: background-position;
}

@keyframes particlesMove {
    0%, 100% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
}

/* Mobile optimization for background animations */
@media (max-width: 768px) {
    .animated-bg {
        animation: gradientShift 25s ease infinite;
    }
    
    .grid-overlay {
        animation: gridMove 30s linear infinite;
        opacity: 0.5;
    }
    
    .particles {
        animation: particlesMove 40s ease infinite;
        opacity: 0.6;
    }
}

/* Reduce animations on low-end devices */
@media (max-width: 480px) {
    .animated-bg {
        animation: none;
        background: #0a0a0f;
    }
    
    .grid-overlay {
        animation: none;
        opacity: 0.3;
    }
    
    .particles {
        animation: none;
        opacity: 0.4;
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
}

.navbar.scrolled {
    padding: var(--spacing-xs) 0;
    box-shadow: var(--shadow-neon-blue);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    position: relative;
}

.nav-logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
    position: relative;
    transition: all 0.3s ease;
}

.logo-img {
    height: 55px;
    width: auto;
    max-width: 320px;
    filter: drop-shadow(0 0 15px rgba(0, 245, 255, 0.6));
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: block;
}

.logo-img:hover {
    filter: drop-shadow(0 0 25px rgba(0, 245, 255, 1));
    transform: scale(1.05);
}

/* Legacy logo text styles (kept for backward compatibility) */
.logo-text {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary-color);
    text-shadow: var(--shadow-neon-blue);
    letter-spacing: 2px;
    position: relative;
    z-index: 2;
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    filter: blur(20px);
    opacity: 0.5;
    z-index: 1;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.1); }
}

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

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
    box-shadow: var(--shadow-neon-blue);
}

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

.nav-link:hover {
    color: var(--primary-color);
    text-shadow: var(--shadow-neon-blue);
}

.btn-appointment {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 25px;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    box-shadow: var(--shadow-neon-blue);
    border: none;
}

.btn-appointment::before {
    display: none;
}

.btn-appointment:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-neon-blue);
}

/* Main Content */
.main-content {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

/* Glass Morphism Effect */
.glass-nav,
.glass-footer,
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-neon-blue);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    box-shadow: none;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    box-shadow: var(--shadow-neon-blue);
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-title {
    font-family: var(--font-primary);
    font-size: 3rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 3px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    box-shadow: var(--shadow-neon-blue);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Flash Messages */
.flash-messages {
    position: fixed;
    top: 100px;
    right: var(--spacing-md);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.flash-message {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    min-width: 300px;
    animation: slideInRight 0.3s ease;
    backdrop-filter: blur(10px);
}

.flash-success {
    background: rgba(0, 255, 136, 0.2);
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
    box-shadow: var(--shadow-neon-green);
}

.flash-error {
    background: rgba(255, 0, 0, 0.2);
    border: 1px solid #ff0000;
    color: #ff0000;
    box-shadow: 0 0 20px rgba(255, 0, 0, 0.5);
}

.flash-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

/* Footer */
.footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.footer-title {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    text-shadow: var(--shadow-neon-blue);
}

.footer-subtitle {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.footer-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-contact i {
    color: var(--primary-color);
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

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

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

/* Email Float Button */
.email-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    z-index: 999;
    box-shadow: 0 4px 20px rgba(0, 240, 255, 0.5);
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
    text-decoration: none;
    cursor: pointer;
}

.email-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(0, 240, 255, 0.8);
    background: var(--accent-color);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* AI Chat */
.ai-chat-container {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 998;
}

.ai-chat-toggle {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-neon-blue);
    transition: all 0.3s ease;
}

.ai-chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
}

.ai-chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 500px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    display: none;
    flex-direction: column;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.ai-chat-window.active {
    display: flex;
}

.ai-chat-header {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ai-chat-header h4 {
    font-family: var(--font-primary);
    color: var(--primary-color);
    margin: 0;
}

.ai-chat-close {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.ai-chat-messages {
    flex: 1;
    padding: var(--spacing-sm);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.ai-message {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 10px;
    max-width: 80%;
}

.ai-bot {
    background: var(--glass-bg);
    align-self: flex-start;
}

.ai-user {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    align-self: flex-end;
}

.ai-chat-input {
    padding: var(--spacing-sm);
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: var(--spacing-xs);
}

.ai-chat-input input {
    flex: 1;
    padding: var(--spacing-xs);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    color: var(--text-primary);
    outline: none;
}

/* Typing Indicator */
.typing-indicator {
    opacity: 0.7;
}

.typing-indicator p {
    display: flex;
    align-items: center;
    gap: 2px;
}

.typing-indicator span {
    animation: typing 1.4s infinite;
    display: inline-block;
}

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

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

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-5px);
    }
}

.ai-chat-input button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
    color: var(--dark-bg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 60px;
        flex-direction: column;
        background: var(--darker-bg);
        width: 100%;
        text-align: center;
        transition: transform 0.3s ease;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: var(--spacing-md) 0;
        backdrop-filter: blur(10px);
        border-top: 1px solid var(--glass-border);
        will-change: transform;
    }

    .nav-menu.active {
        left: 0;
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .section-title {
        font-size: 2rem;
        line-height: 1.3;
        padding: 0 var(--spacing-sm);
    }

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

    .container {
        padding: 0 var(--spacing-sm);
    }

    .footer-container {
        grid-template-columns: 1fr;
    }

    .ai-chat-window {
        width: calc(100vw - 40px);
        max-width: 350px;
        right: -10px;
    }
    
    /* Optimize buttons for touch */
    .btn {
        min-height: 44px;
        touch-action: manipulation;
    }
    
    /* Improve touch targets */
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .section-title {
        font-size: 1.5rem;
        letter-spacing: 1px;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
        padding: 0 var(--spacing-xs);
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .btn {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }