/*
Theme Name: Andrej Birac Portfolio
Theme URI: https://andrejbirac.com
Author: Andrej Birac
Author URI: https://andrejbirac.com
Description: Professional portfolio theme for senior full stack developer
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: andrejbirac
*/

:root {
    --primary-color: #0066cc;
    --secondary-color: #003d7a;
    --accent-color: #ff6b35;
    --text-color: #333333;
    --light-gray: #f5f5f5;
    --dark-gray: #222222;
    --white: #ffffff;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', sans-serif;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

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

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

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

/* Header */
.site-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

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

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.site-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-gray);
}

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

.main-navigation ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-navigation a {
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    color: var(--text-color);
}

.main-navigation a:hover {
    color: var(--primary-color);
}

.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.language-switcher a {
    padding: 0.4rem 0.8rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--white);
}

.language-switcher a:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.language-switcher a.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.language-switcher a span.flag {
    font-size: 1.2rem;
    line-height: 1;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,106.7C1248,96,1344,96,1392,96L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

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

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-description {
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    transition: var(--transition);
    display: inline-block;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: #ff5722;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255,107,53,0.3);
}

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

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255,255,255,0.3);
}

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

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 1rem auto;
    border-radius: 2px;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.skill-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Experience Section */
.experience-timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline-item {
    background: var(--white);
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: relative;
    margin-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 2rem;
    width: 15px;
    height: 15px;
    background: var(--accent-color);
    border-radius: 50%;
}

.timeline-date {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.timeline-company {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.timeline-description {
    line-height: 1.8;
}

.timeline-description ul {
    margin-left: 1.5rem;
}

/* Achievements Section */
.achievements-section {
    background: var(--white);
}

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

.achievement-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: var(--transition);
    border: 2px solid var(--light-gray);
}

.achievement-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
    border-color: var(--accent-color);
}

.achievement-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.achievement-card h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 0.8rem;
}

.achievement-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.achievement-link {
    display: inline-block;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.achievement-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Contact Section */
.contact-section {
    background: var(--light-gray);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.masked-contact {
    cursor: pointer;
    transition: var(--transition);
}

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

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: var(--font-main);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.captcha-container {
    margin: 1.5rem 0;
    text-align: center;
}

.captcha-image {
    background: var(--light-gray);
    padding: 1rem;
    border-radius: 5px;
    display: inline-block;
    margin-bottom: 1rem;
}

/* About Section */
.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.highlight-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.highlight-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.highlight-item p {
    font-size: 0.95rem;
    color: #666;
}

/* Footer */
.site-footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 3rem 0 1rem;
    text-align: center;
}

.footer-bottom {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-content {
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

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

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

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .achievements-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .achievement-card {
        padding: 1.5rem;
    }

    .achievement-icon {
        font-size: 2.5rem;
    }

    .achievement-card h3 {
        font-size: 1.1rem;
    }

    .achievement-card p {
        font-size: 0.9rem;
    }

    .main-navigation {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .main-navigation.active {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    .main-navigation.active ul {
        flex-direction: column;
        padding: 1rem;
    }

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

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 1rem;
    }

    .skill-item {
        padding: 1rem;
    }

    .skill-icon {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .skill-item h4 {
        font-size: 0.9rem;
        margin: 0;
    }
}

/* Notification */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 5px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    animation: slideInRight 0.3s ease;
    z-index: 9999;
}

.notification.success {
    background: #4caf50;
}

.notification.error {
    background: #f44336;
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}