/* ============================================ */
/* GLOBAL STYLES */
/* ============================================ */

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

:root {
    --primary-color: #6F2F9F;
    --secondary-color: #00A8E8;
    --accent-color: #FF6B6B;
    --dark-bg: #0F1F3F;
    --light-bg: #FFFFFF;
    --text-dark: #1A1A2E;
    --text-light: #767070;
    --light-gray: #F5F5F5;
    --border-color: #E0E0E0;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

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

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

/* ============================================ */
/* TYPOGRAPHY */
/* ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* ============================================ */
/* NAVIGATION BAR */
/* ============================================ */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 70px;
    background: rgba(15, 31, 63, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--secondary-color);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition);
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    margin: 4px 0;
    transition: var(--transition);
}

/* ============================================ */
/* BUTTONS */
/* ============================================ */

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-width: 150px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(111, 47, 159, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(111, 47, 159, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

/* ============================================ */
/* HERO SECTION */
/* ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    margin-top: 70px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-color) 100%);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 107, 107, 0.1);
    border-radius: 50%;
    top: 10%;
    right: 5%;
    animation: float 6s ease-in-out infinite;
}

.hero-background::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(0, 168, 232, 0.1);
    border-radius: 50%;
    bottom: 15%;
    left: 10%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-30px); }
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 1;
    animation: slideUp 0.8s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(180deg, #fff, #ddd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.hero .tagline {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================ */
/* ABOUT SECTION */
/* ============================================ */

.about {
    padding: 5rem 0;
    background: var(--light-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-size: 1.05rem;
    line-height: 1.8;
}

.about-info {
    display: grid;
    gap: 1.5rem;
}

.info-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(111, 47, 159, 0.15);
}

.info-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.info-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.info-card p {
    color: var(--text-light);
    margin: 0;
}

/* ============================================ */
/* EDUCATION SECTION */
/* ============================================ */

.education {
    padding: 5rem 0;
    background: white;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.education-card {
    background: linear-gradient(135deg, var(--light-gray) 0%, white 100%);
    padding: 2.5rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.education-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(111, 47, 159, 0.15);
}

.degree {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.education-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.institution {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
}

.university {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}

.score {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.95rem;
}

/* ============================================ */
/* EXPERIENCE SECTION */
/* ============================================ */

.experience {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-color) 100%);
    color: white;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
}

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

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: 52%;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 52%;
    margin-right: 0;
    text-align: left;
}

.timeline-date {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 10;
    width: 100px;
    text-align: center;
}

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

.timeline-content h3 {
    margin-bottom: 0.3rem;
    color: var(--secondary-color);
}

.company {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    margin-bottom: 1rem;
}

.responsibilities {
    list-style: none;
    color: rgba(255, 255, 255, 0.9);
}

.responsibilities li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
}

.responsibilities li::before {
    content: '▪';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

/* ============================================ */
/* SKILLS SECTION */
/* ============================================ */

.skills {
    padding: 5rem 0;
    background: var(--light-gray);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

.skill-category {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(111, 47, 159, 0.15);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-category i {
    font-size: 1.5rem;
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: default;
}

.skill-tag:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(111, 47, 159, 0.3);
}

/* ============================================ */
/* PROJECTS SECTION */
/* ============================================ */

.projects {
    padding: 5rem 0;
    background: white;
}

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

.project-card {
    background: linear-gradient(135deg, var(--light-gray) 0%, white 100%);
    padding: 2.5rem;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border-top: 3px solid var(--primary-color);
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(111, 47, 159, 0.2);
}

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

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

.project-card p {
    color: var(--text-light);
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.project-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-badge.patent {
    background: rgba(111, 47, 159, 0.1);
    color: var(--primary-color);
}

.project-badge.design {
    background: rgba(255, 107, 107, 0.1);
    color: var(--accent-color);
}

/* ============================================ */
/* AWARDS SECTION */
/* ============================================ */

.awards {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-color) 100%);
    color: white;
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.award-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: 10px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.award-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--secondary-color);
}

.award-icon {
    font-size: 3.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.award-card h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.award-card p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.award-date {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 168, 232, 0.2);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-weight: 500;
}

/* ============================================ */
/* CONTACT SECTION */
/* ============================================ */

.contact {
    padding: 5rem 0;
    background: var(--light-gray);
}

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

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

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-item i {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-top: 0.3rem;
}

.contact-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.contact-item p {
    color: var(--text-light);
    margin: 0;
}

.contact-item a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

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

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.9rem;
    margin-bottom: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(111, 47, 159, 0.1);
}

/* ============================================ */
/* FOOTER */
/* ============================================ */

.footer {
    background: var(--dark-bg);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--secondary-color);
    transform: translateY(-3px);
}

/* ============================================ */
/* RESPONSIVE DESIGN */
/* ============================================ */

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex;
    }

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

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

    .section-title {
        font-size: 2rem;
    }

    .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-left: 40px;
        margin-right: 0;
        text-align: left;
    }

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

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

    .footer .container {
        flex-direction: column;
        text-align: center;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero {
        margin-top: 70px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .education-card,
    .project-card,
    .award-card {
        padding: 1.5rem;
    }

    .nav-links {
        gap: 1rem;
    }

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

/* ============================================ */
/* ANIMATIONS */
/* ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}