/* ==========================================
   Global Styles & Variables
   ========================================== */

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --transition: all 0.3s ease;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
}

* {
    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(--light-bg);
    overflow-x: hidden;
}

/* ==========================================
   Container & Spacing
   ========================================== */

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

/* ==========================================
   Navigation
   ========================================== */

.navbar {
    background: var(--card-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    transition: var(--transition);
}

.logo a:hover {
    transform: translateY(-2px);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    background: linear-gradient(135deg, var(--light-bg), #f1f5f9);
    padding: 120px 20px 80px;
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 60px;
    row-gap: 0;
    align-items: center;
    width: 100%;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

.hero-socials {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
    grid-column: 1;
    grid-row: 2;
}

.hero-socials a {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: var(--transition);
    box-shadow: var(--shadow);
    font-size: 1.2rem;
}

.hero-socials a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.hero-image {
    grid-column: 2;
    grid-row: 1 / span 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-placeholder {
    width: 280px;
    height: 280px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 150px;
    color: rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.profile-image {
    width: min(100%, 360px);
    height: auto;
    object-fit: cover;
    border-radius: 20px;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* ==========================================
   Sections
   ========================================== */

section {
    padding: 100px 20px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* ==========================================
   About Section
   ========================================== */

.about {
    background: var(--card-bg);
}

.about-info p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.info-item {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.info-item .label {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.info-item .value {
    font-size: 1.1rem;
    color: var(--text-dark);
    font-weight: 600;
}

/* ==========================================
   Skills Section
   ========================================== */

.skills {
    background: linear-gradient(135deg, var(--light-bg), #f1f5f9);
}

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

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.skill-category h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.skill-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.skill-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}

.skill-badge:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow);
}

/* ==========================================
   Experience Section
   ========================================== */

.experience {
    background: var(--card-bg);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

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

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: auto;
    width: calc(50% - 30px);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
    margin-right: 0;
    width: calc(50% - 30px);
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 4px solid var(--card-bg);
    border-radius: 50%;
    top: 0;
    z-index: 1;
}

.timeline-content {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.timeline-header h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
}

.timeline-date {
    background: var(--primary-color);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.company {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.description {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.responsibilities {
    list-style: none;
    margin: 1rem 0;
}

.responsibilities li {
    color: var(--text-light);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

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

/* ==========================================
   Education Section
   ========================================== */

.education {
    background: linear-gradient(135deg, var(--light-bg), #f1f5f9);
}

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

.education-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

.education-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

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

.education-card h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.education-institution {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.education-field {
    color: var(--text-light);
    margin-bottom: 1rem;
}

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

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

/* ==========================================
   Contact Section
   ========================================== */

.contact {
    background: var(--card-bg);
}

.contact-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

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

.contact-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.2rem;
}

.contact-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.3rem;
    font-weight: 700;
}

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

.contact-item a:hover {
    color: var(--primary-color);
}

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

.form-honeypot {
    display: none;
}

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

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-dark);
    transition: var(--transition);
    background: var(--light-bg);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
    background: var(--dark-bg);
    color: var(--light-bg);
    text-align: center;
    padding: 2rem 20px;
    border-top: 2px solid var(--primary-color);
}

.footer p {
    margin: 0.5rem 0;
}

.footer-tagline i {
    color: var(--accent-color);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--card-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        gap: 0;
        padding: 1rem 0;
        box-shadow: var(--shadow);
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 40px 0;
        text-align: center;
    }

    .hero-text {
        display: flex;
        flex-direction: column;
        align-items: center;
        grid-row: 1;
    }

    .hero-image {
        grid-column: 1;
        grid-row: 2;
        justify-content: center;
    }

    .hero-socials {
        grid-column: 1;
        grid-row: 3;
        justify-content: center;
        margin-top: 0;
    }

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

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

    .profile-placeholder {
        width: 250px;
        height: 250px;
        font-size: 100px;
        margin: 0 auto;
    }

    .timeline::before {
        left: 0;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: calc(100% - 40px);
        margin-left: 40px;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    section {
        padding: 60px 20px;
    }

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

    .hero {
        min-height: auto;
        padding: 80px 20px 60px;
    }

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

    .btn {
        width: 100%;
    }

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

@media (max-width: 480px) {
    .nav-menu {
        gap: 0;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

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

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

    .profile-placeholder {
        width: 200px;
        height: 200px;
        font-size: 80px;
    }

    .hero-socials {
        gap: 1rem;
    }

    .hero-socials a {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

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

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

    .info-item {
        padding: 1rem;
    }

    .timeline-content {
        padding: 1.5rem;
    }

    .contact-item {
        padding: 1rem;
        gap: 1rem;
    }
}