/* CSS Reset and Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e293b;
    --accent-color: #10b981;
    --accent-secondary: #3b82f6;
    --text-light: #f8fafc;
    --text-dark: #1e293b;
    --bg-light: #ffffff;
    --bg-dark: #0a0a0f;
    --gradient-1: #0a0a0f;
    --gradient-2: #1a1a2e;
    --gradient-3: #16213e;
    --gradient-4: #0f3460;
    --card-bg: rgba(26, 26, 46, 0.8);
    --card-border: rgba(16, 185, 129, 0.2);
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.6);
    --glow: 0 0 20px rgba(16, 185, 129, 0.3);
}

/* Global Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-light);
    background: linear-gradient(-45deg, var(--gradient-1), var(--gradient-2), var(--gradient-3), var(--gradient-4));
    background-size: 400% 400%;
    animation: gradientAnimation 15s ease infinite;
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* Floating particles animation */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.3; }
    50% { transform: translateY(-20px) rotate(180deg); opacity: 1; }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.98), rgba(22, 33, 62, 0.98));
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(16, 185, 129, 0.2);
    padding: 1rem 2rem;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
    line-height: 1;
}

.logo:hover {
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
}

.nav-links a:hover {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-color);
    transform: translateY(-1px);
}

.nav-links a.active {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-color);
}

/* Enhanced navbar styling */
.nav-links a {
    position: relative;
    overflow: hidden;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
    transition: width 0.3s ease, left 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover::after {
    width: 80%;
    left: 50%;
}

.nav-links a.active::after {
    width: 80%;
    left: 50%;
}

/* Mobile Navigation */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
}

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

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 2rem;
    position: relative;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

/* Profile Photo Section */
.profile-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 3rem;
    animation: profileFadeIn 1.2s ease-out;
}

.profile-photo {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 4px solid var(--accent-color);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.4), 0 10px 40px rgba(0, 0, 0, 0.3);
    margin-bottom: 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--gradient-2), var(--gradient-3));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--accent-color);
}

.profile-photo:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 0 50px rgba(16, 185, 129, 0.6), 0 20px 60px rgba(0, 0, 0, 0.4);
    border-color: var(--accent-secondary);
}

.profile-photo::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, var(--accent-color), var(--accent-secondary), var(--accent-color));
    animation: rotate 3s linear infinite;
    z-index: -1;
}

.profile-photo::after {
    content: '';
    position: absolute;
    inset: 4px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-2), var(--gradient-3));
    z-index: -1;
}

.profile-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: all 0.4s ease;
}

.profile-photo:hover img {
    transform: scale(1.05);
}

/* Profile placeholder when no image */
.profile-placeholder {
    font-size: 4rem;
    color: var(--accent-color);
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

@keyframes profileFadeIn {
    0% {
        opacity: 0;
        transform: translateY(50px) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced scrolling effects */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
    transform-origin: left;
    transform: scaleX(0);
    z-index: 10001;
    transition: transform 0.3s ease;
}

/* Smooth reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animations */
.stagger-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-item:nth-child(1) { transition-delay: 0.1s; }
.stagger-item:nth-child(2) { transition-delay: 0.2s; }
.stagger-item:nth-child(3) { transition-delay: 0.3s; }
.stagger-item:nth-child(4) { transition-delay: 0.4s; }

.stagger-item.active {
    opacity: 1;
    transform: translateY(0);
}

/* Enhanced navbar styling */
.nav-links a {
    position: relative;
    overflow: hidden;
}

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

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

/* Floating action button for quick contact */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    opacity: 0;
    transform: translateY(100px);
}

.fab.show {
    opacity: 1;
    transform: translateY(0);
}

.fab:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.6);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--text-light), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textGlow 2s ease-in-out infinite alternate;
}

@keyframes textGlow {
    from { filter: drop-shadow(0 0 5px rgba(16, 185, 129, 0.3)); }
    to { filter: drop-shadow(0 0 20px rgba(16, 185, 129, 0.6)); }
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    color: var(--text-light);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-hover);
}

/* Content Sections */
.content-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    animation: fadeInUp 0.8s ease-out;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-light);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
}

.card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: var(--shadow-hover), var(--glow);
    background: rgba(26, 26, 46, 0.9);
    border-color: var(--accent-color);
}

.card:hover::after {
    opacity: 1;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.card p {
    opacity: 0.9;
    line-height: 1.6;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin: 2rem 0;
    animation: slideInLeft 0.6s ease-out;
}

.timeline-item:nth-child(even) {
    animation: slideInRight 0.6s ease-out;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    width: 45%;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 55%;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: 55%;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 2rem;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

/* Forms */
.form-container {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-light);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(248, 250, 252, 0.6);
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    color: var(--text-light);
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.95);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .content-section {
        padding: 2rem 1rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px !important;
        margin-right: 0 !important;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .form-container {
        padding: 2rem 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
}

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

.mb-2 {
    margin-bottom: 2rem;
}

.mt-2 {
    margin-top: 2rem;
}

.fade-in {
    animation: fadeInUp 0.8s ease-out;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--text-light);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: 10px;
    margin: 1rem 0;
    text-align: center;
    font-weight: 600;
}

.message.success {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
}

.message.error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid #ef4444;
    color: #ef4444;
}