/* ===== Variables CSS ===== */
:root {
    --primary-color: #0052CC;
    --secondary-color: #999999;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --error-color: #dc3545;
    --transition: all 0.3s ease;
}

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

 html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 15px;
    color: var(--text-dark);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: 15px;
    color: var(--text-light);
}

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

a:hover {
    color: var(--secondary-color);
}

/* ===== Navigation ===== */
.navbar {
    background-color: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--primary-color);
}

.logo {
    height: 40px;
    width: auto;
}

.brand-text {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    margin: 5px 0;
    transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #003d99;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 82, 204, 0.3);
}

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

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

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 80px 20px;
    margin-top: 0;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-image {
    width: 100%;
    max-width: 400px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-text h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #003d99 100%);
    color: var(--bg-white);
    padding: 60px 20px;
    text-align: center;
}

.page-header h1 {
    color: var(--bg-white);
    margin-bottom: 15px;
}

.page-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

/* ===== Services Section ===== */
.services-preview,
.services-details {
    padding: 80px 20px;
    background-color: var(--bg-light);
}

.services-preview h2,
.services-details h2 {
    text-align: center;
    margin-bottom: 50px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* ===== Service Details ===== */
.service-detail-card {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 10px;
    margin-bottom: 40px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.service-detail-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.service-intro {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 25px;
}

.service-list {
    list-style: none;
    margin: 20px 0;
}

.service-list li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-light);
}

.service-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* ===== Projects Section ===== */
.projects {
    padding: 80px 20px;
    background-color: var(--bg-white);
}

.projects h2 {
    text-align: center;
    margin-bottom: 50px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--bg-light);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-content {
    padding: 25px;
}

.project-link {
    display: inline-block;
    margin-top: 15px;
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== About Section ===== */
.about-section {
    padding: 80px 20px;
    background-color: var(--bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.about-text h2 {
    color: var(--primary-color);
    margin-bottom: 25px;
}

/* ===== Education Timeline ===== */
.education {
    padding: 80px 20px;
    background-color: var(--bg-light);
}

.education h2 {
    text-align: center;
    margin-bottom: 50px;
}

.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background-color: var(--primary-color);
}

.timeline-item {
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: auto;
    width: 48%;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
    margin-right: 0;
    width: 48%;
    text-align: left;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border: 3px solid var(--bg-light);
    border-radius: 50%;
    top: 0;
}

.timeline-content {
    background-color: var(--bg-white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.timeline-date {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.timeline-desc {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===== Skills Section ===== */
.skills {
    padding: 80px 20px;
    background-color: var(--bg-white);
}

.skills h2 {
    text-align: center;
    margin-bottom: 50px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.skill-category {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.skills-list {
    list-style: none;
}

.skills-list li {
    padding: 8px 0;
    color: var(--text-light);
    position: relative;
    padding-left: 20px;
}

.skills-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* ===== Values Section ===== */
.values {
    padding: 80px 20px;
    background-color: var(--bg-light);
}

.values h2 {
    text-align: center;
    margin-bottom: 50px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.value-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* ===== Process Section ===== */
.process {
    padding: 80px 20px;
    background-color: var(--bg-white);
}

.process h2 {
    text-align: center;
    margin-bottom: 50px;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.process-step {
    text-align: center;
    padding: 30px;
    background-color: var(--bg-light);
    border-radius: 10px;
    position: relative;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 15px;
}

/* ===== Why Choose Section ===== */
.why-choose {
    padding: 80px 20px;
    background-color: var(--bg-light);
}

.why-choose h2 {
    text-align: center;
    margin-bottom: 50px;
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.reason-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-top: 4px solid var(--primary-color);
}

.reason-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* ===== Contact Section ===== */
.contact-section {
    padding: 80px 20px;
    background-color: var(--bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-form-wrapper h2,
.contact-info-wrapper h2 {
    margin-bottom: 30px;
    color: var(--primary-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.form-message {
    padding: 15px;
    border-radius: 5px;
    display: none;
    margin-top: 10px;
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

.contact-info-card {
    background-color: var(--bg-light);
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
}

.info-icon {
    font-size: 2rem;
    margin-bottom: 15px;
}

.contact-info-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.info-desc {
    font-size: 0.9rem;
    color: var(--text-light);
}

.social-links-large {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.social-btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: var(--bg-white);
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
}

.social-btn:hover {
    background-color: #003d99;
}

/* ===== FAQ Section ===== */
.faq {
    padding: 80px 20px;
    background-color: var(--bg-light);
}

.faq h2 {
    text-align: center;
    margin-bottom: 50px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.faq-item {
    background-color: var(--bg-white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.faq-item h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* ===== CTA Section ===== */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, #003d99 100%);
    color: var(--bg-white);
    padding: 60px 20px;
    text-align: center;
}

.cta h2 {
    color: var(--bg-white);
    margin-bottom: 15px;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

/* ===== Footer ===== */
.footer {
    background-color: #1a1a1a;
    color: #ffffff;
    padding: 50px 20px 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.footer-section p {
    color: #cccccc;
    margin-bottom: 10px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #cccccc;
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333333;
    color: #999999;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    .nav-menu {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(10px, 10px);
    }

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

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

    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        padding: 20px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        gap: 15px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        max-width: 300px;
        margin: 0 auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 0;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: 100%;
        margin-left: 30px;
        text-align: left;
    }

    .timeline-marker {
        left: -10px;
    }

    .services-grid,
    .projects-grid,
    .skills-grid,
    .values-grid,
    .reasons-grid,
    .faq-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .nav-brand {
        font-size: 1rem;
    }

    .logo {
        height: 30px;
    }
}