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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: #334155;
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1e293b;
}

.accent {
    color: #0d9488;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: #64748b;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #0d9488;
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: #1e293b;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2f1 100%);
    padding-top: 80px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.welcome-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background-color: #ccfbf1;
    color: #0d9488;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.hero h1 {
    font-size: 3.5rem;
    color: #1e293b;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.hero h2 {
    font-size: 2rem;
    color: #475569;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.hero-info {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
    color: #64748b;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: #0d9488;
    color: white;
}

.btn-primary:hover {
    background-color: #0f766e;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.3);
}

.btn-outline {
    border: 2px solid #cbd5e1;
    color: #1e293b;
}

.btn-outline:hover {
    border-color: #0d9488;
    color: #0d9488;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: #64748b;
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about {
    background-color: #ffffff;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.about-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.about-text h3 {
    font-size: 1.8rem;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.highlights {
    list-style: none;
}

.highlights li {
    padding: 0.5rem 0;
    color: #334155;
}

/* Skills Section */
.skills {
    background-color: #f8fafc;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: #0d9488;
}

.skill-card h3 {
    color: #1e293b;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #0d9488;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tags span {
    background-color: #ccfbf1;
    color: #0d9488;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.skill-tags span:hover {
    background-color: #99f6e4;
}

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

.timeline {
    position: relative;
    max-width: 900px;
    margin: 3rem auto;
    padding: 0 20px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: #cbd5e1;
}

.timeline-item {
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 50%;
    padding-right: 3rem;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 50%;
    padding-left: 3rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background-color: #0d9488;
    border: 4px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 4px #ccfbf1;
    z-index: 1;
}

.timeline-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.timeline-date {
    display: inline-block;
    background-color: #0d9488;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.timeline-content h3 {
    color: #1e293b;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: #0d9488;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.timeline-content .description {
    color: #64748b;
    margin: 1rem 0;
}

.timeline-content ul {
    list-style: none;
    margin-top: 1rem;
}

.timeline-content li {
    padding: 0.3rem 0;
    color: #334155;
    font-size: 0.95rem;
}

.timeline-content li::before {
    content: '✓ ';
    color: #0d9488;
    font-weight: bold;
    margin-right: 0.5rem;
}

/* Projects Section */
.projects {
    background-color: #f8fafc;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.project-category {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    background-color: #f59e0b;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    color: #1e293b;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.project-info p {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tags span {
    border: 1px solid #0d9488;
    color: #0d9488;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
}

.project-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    transition: all 0.3s ease;
}

.project-card-link:hover {
    text-decoration: none;
}

/* Contact Section */
.contact {
    background-color: #ffffff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: #f8fafc;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background-color: #e0f2f1;
    transform: translateX(5px);
}

.contact-icon {
    font-size: 2rem;
}

.contact-item h4 {
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.contact-item a {
    color: #0d9488;
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form {
    background-color: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: #334155;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #cbd5e1;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0d9488;
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background-color: #1e293b;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: auto;
    width: 100%;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-col h4 {
    color: #e2e8f0;
    margin-bottom: 1rem;
}

.footer-col p {
    color: #94a3b8;
    line-height: 1.6;
}

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

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: #0d9488;
}

.social-links {
    display: flex;
    gap: 1rem;
    flex-direction: column;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #334155;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .nav-toggle {
        display: flex;
    }

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

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

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

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

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

    .timeline::before {
        left: 0;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin: 0;
        padding-left: 3rem;
        text-align: left;
    }

    .timeline-item::before {
        left: 0;
        transform: translateX(-50%);
    }

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

    .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* Smooth Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #0d9488;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0f766e;
}

/* ===== NAVBAR ===== */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 60px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 999;
}

.logo {
  font-weight: 700;
  font-size: 22px;
  color: #1a1a1a;
}

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

.nav-links li a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links li a:hover {
  color: #00897b;
}

/* === Floating Language Button === */
.floating-lang {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: #00897b;
  color: #fff;
  font-weight: 600;
  border-radius: 50%;
  width: 55px;
  height: 55px;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s ease;
  z-index: 9999;
}

.floating-lang:hover {
  background: #00695c;
  transform: scale(1.05);
}

/* ===== PDF Viewer Section ===== */
#pdf-section {
    text-align: center;
    margin: 0 auto;
}

.pdf-container {
    border: 1px solid #ccc;
    display: inline-block;
}

#pdf-canvas {
    max-width: 100%;
}

.pdf-controls {
    margin-top: 10px;
}
.pdf-controls button {
    padding: 5px 10px;
    margin: 0 5px;
}


/* Mobile Responsive */
@media screen and (max-width: 768px) {
  .floating-lang {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 20px;
    font-size: 12px;
  }
}