/* 
* Main Stylesheet
* Author: Krishchal Regmi
* Version: 1.0
*/

/* =========== Base Styles =========== */
:root {
    /* Light Theme Colors */
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #4cc9f0;
    --background-color: #ffffff;
    --secondary-background: #f8f9fa;
    --text-color: #333333;
    --secondary-text-color: #6c757d;
    --border-color: #e9ecef;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    
    /* Font Variables */
    --heading-font: 'Poppins', sans-serif;
    --body-font: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Transition */
    --transition-speed: 0.3s;
    --transition-timing: ease;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 20px;
    --border-radius-circle: 50%;
}

.dark-mode {
    --primary-color: #4cc9f0;
    --secondary-color: #4361ee;
    --accent-color: #3a0ca3;
    --background-color: #121212;
    --secondary-background: #1e1e1e;
    --text-color: #f8f9fa;
    --secondary-text-color: #adb5bd;
    --border-color: #2d2d2d;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--body-font);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-speed) var(--transition-timing),
                color var(--transition-speed) var(--transition-timing);
}

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

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

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

ul, ol {
    list-style-position: inside;
    margin-bottom: var(--spacing-md);
}

img {
    max-width: 100%;
    height: auto;
}

section {
    padding: var(--spacing-xxl) 0;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.section-header h2 {
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.separator {
    height: 4px;
    width: 70px;
    background: var(--primary-color);
    margin: 0 auto;
    position: relative;
}

.separator::before, .separator::after {
    content: '';
    position: absolute;
    height: 4px;
    width: 30px;
    background: var(--accent-color);
    top: 0;
}

.separator::before {
    left: -40px;
}

.separator::after {
    right: -40px;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-timing);
    border: none;
    outline: none;
}

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

.primary-btn:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

/* =========== Navigation =========== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--background-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: background-color var(--transition-speed) var(--transition-timing),
                box-shadow var(--transition-speed) var(--transition-timing);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0;
}

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

.nav-link {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    transition: width var(--transition-speed) var(--transition-timing);
}

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

.theme-toggle {
    display: flex;
    align-items: center;
}

#theme-toggle-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-color);
    transition: color var(--transition-speed) var(--transition-timing);
}

#theme-toggle-btn:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
}

/* =========== Hero Section =========== */
.hero-section {
    position: relative;
    min-height: 100vh;
    background-image: url('https://images.unsplash.com/photo-1519389950473-47ba0277781c');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-image {
    margin-bottom: var(--spacing-xl);
}

.profile-image {
    width: 180px;
    height: 180px;
    border-radius: var(--border-radius-circle);
    overflow: hidden;
    border: 4px solid var(--primary-color);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.profile-placeholder {
    width: 100%;
    height: 100%;
    background-image: url('../images/profile.jpg');
    background-size: cover;
    background-position: center;
}

.hero-text {
    color: white;
}

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.hero-text h2 {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.hero-text p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-circle);
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all var(--transition-speed) var(--transition-timing);
}

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

/* =========== About Section =========== */
.about-section {
    background-color: var(--secondary-background);
    padding: var(--spacing-xxl) 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

/* =========== Skills Section =========== */
.skills-section {
    padding: var(--spacing-xxl) 0;
}

.skills-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.skill-category {
    margin-bottom: var(--spacing-xl);
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
    color: var(--primary-color);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.skill-item {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.25rem;
    margin: 0.5rem;
    background: linear-gradient(135deg, var(--background-color) 0%, var(--secondary-background) 100%);
    border-radius: 50px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    border-left: 3px solid var(--primary-color);
    transition: all var(--transition-speed) var(--transition-timing);
}

.skill-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    border-left: 3px solid var(--accent-color);
}

.skill-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: all var(--transition-speed) var(--transition-timing);
}

.skill-item:hover .skill-icon {
    color: var(--accent-color);
    transform: rotate(10deg);
}

.skill-item h4 {
    margin-bottom: 0;
    font-weight: 500;
    font-size: 1rem;
}

/* Remove skill bars */
.skill-bar, .skill-progress {
    display: none;
}

/* =========== Experience Section =========== */
.experience-section {
    background-color: var(--secondary-background);
    padding: var(--spacing-xxl) 0;
}

.experience-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.timeline {
    position: relative;
    padding: var(--spacing-md) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 8px;
    height: 100%;
    width: 2px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 45px;
    padding-bottom: var(--spacing-xl);
}

.timeline-dot {
    position: absolute;
    left: 0;
    top: 8px;
    width: 18px;
    height: 18px;
    border-radius: var(--border-radius-circle);
    background-color: var(--primary-color);
    z-index: 1;
}

.timeline-content {
    background-color: var(--background-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--card-shadow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.timeline-header h3 {
    margin-bottom: 0;
    font-size: 1.2rem;
}

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

.timeline-content h4 {
    color: var(--secondary-text-color);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.timeline-details {
    margin-left: var(--spacing-md);
}

.timeline-details li {
    margin-bottom: var(--spacing-sm);
}

/* =========== Education Section =========== */
.education-section {
    padding: var(--spacing-xxl) 0;
}

.education-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.education-item {
    background-color: var(--background-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    transition: all var(--transition-speed) var(--transition-timing);
}

.education-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.education-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.education-details h3 {
    margin-bottom: var(--spacing-xs);
}

.education-details h4 {
    color: var(--secondary-text-color);
    font-weight: 500;
    margin-bottom: 0;
}

/* =========== Projects Section =========== */
.projects-section {
    background-color: var(--secondary-background);
    padding: var(--spacing-xxl) 0;
}

.projects-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: all var(--transition-speed) var(--transition-timing);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.1);
}

.project-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.project-header h3 {
    margin-bottom: 0;
}

.project-links {
    display: flex;
    gap: var(--spacing-sm);
}

.project-link {
    font-size: 1.25rem;
    color: var(--primary-color);
    transition: color var(--transition-speed) var(--transition-timing);
}

.project-link:hover {
    color: var(--secondary-color);
}

.project-body {
    padding: var(--spacing-lg);
}

.project-body p {
    margin-bottom: var(--spacing-md);
}

.project-body h4 {
    margin-bottom: var(--spacing-sm);
}

.project-body ul {
    margin-bottom: var(--spacing-md);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.tech-badge {
    background-color: var(--secondary-background);
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
}

/* =========== Contact Section =========== */
.contact-section {
    padding: var(--spacing-xxl) 0;
}

.contact-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-circle);
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.contact-text h3 {
    margin-bottom: var(--spacing-xs);
}

.contact-text p {
    color: var(--secondary-text-color);
}

.contact-form {
    background-color: var(--background-color);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    box-shadow: var(--card-shadow);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: var(--body-font);
    transition: all var(--transition-speed) var(--transition-timing);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* =========== Footer =========== */
footer {
    background-color: var(--secondary-background);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-text {
    color: var(--secondary-text-color);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--secondary-text-color);
    transition: color var(--transition-speed) var(--transition-timing);
}

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

/* =========== Resume Download Button =========== */
.resume-download {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 100;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-speed) var(--transition-timing);
}

.download-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    color: white;
}