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

/* Global Styles */
:root {
    --primary-color: #4a6fa5;
    --secondary-color: #166088;
    --accent-color: #4fc3dc;
    --text-color: #333;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

section {
    padding: 80px 0;
}

h1, h2, h3 {
    margin-bottom: 20px;
    color: var(--dark-color);
}

p {
    margin-bottom: 15px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

img {
    max-width: 100%;
}

/* Header Styles */
header {
    background-color: var(--dark-color);
    color: white;
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    padding: 10px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-menu li {
    margin-left: 30px;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--accent-color);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--dark-color);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: white;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    max-width: 600px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0.8;
}

/* About Section */
.about-container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-img {
    flex: 1;
}

.about-img img {
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-content {
    flex: 1;
}

/* Work Experience Section */
.experience {
    background-color: #f4f4f4;
}

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

.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: white;
    border: 4px solid var(--accent-color);
    border-radius: 50%;
    top: 15px;
    z-index: 1;
}

.timeline-item.left {
    left: 0;
}

.timeline-item.right {
    left: 50%;
}

.timeline-item.left::after {
    right: -14px;
}

.timeline-item.right::after {
    left: -14px;
}

.timeline-content {
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.timeline-date {
    font-weight: bold;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

/* Contact Section */
.contact {
    background-color: var(--dark-color);
    color: white;
}

.contact h2 {
    color: white;
}

.contact-container {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.contact-icon {
    margin-right: 15px;
    font-size: 24px;
    color: var(--accent-color);
}

.contact-form {
    flex: 1;
}

.form-group {
    margin-bottom: 20px;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
}

textarea.form-control {
    height: 150px;
    resize: vertical;
}

/* Form status messages */
.form-status {
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
    display: none;
}

.form-status.success {
    background-color: rgba(40, 167, 69, 0.2);
    border: 1px solid #28a745;
    color: #fff;
}

.form-status.error {
    background-color: rgba(220, 53, 69, 0.2);
    border: 1px solid #dc3545;
    color: #fff;
}

/* Footer */
footer {
    background-color: #111;
    color: white;
    padding: 40px 0;
    text-align: center;
}

.social-links {
    margin-bottom: 20px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #333;
    color: white;
    border-radius: 50%;
    margin: 0 10px;
    text-decoration: none;
    transition: var(--transition);
    font-size: 18px;
}

.social-icon:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* Loading spinner */
.spinner {
    display: none;
    margin-left: 10px;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

.submit-wrapper {
    display: flex;
    align-items: center;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .about-container, .contact-container {
        flex-direction: column;
    }

    .hero h1 {
        font-size: 36px;
    }

    .mobile-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        flex-direction: column;
        background-color: var(--dark-color);
        width: 100%;
        padding: 20px;
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 10px 0;
    }

    .timeline::after {
        left: 31px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .timeline-item.right {
        left: 0;
    }

    .timeline-item.left::after,
    .timeline-item.right::after {
        left: 17px;
    }
}