/* ========================================
   PROFESSIONAL PORTFOLIO CSS
   Author: Nayan Maharjan
   Modern, Clean, Enterprise-Grade Design
   ======================================== */

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

:root {
    /* Color Palette */
    --primary: #eb254d;
    --primary-dark: #af1e20;
    --primary-light: #f63b89;
    --accent: #3628f4;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

body.dark-mode {
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --border: #334155;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
}

/* ========================================
   LAYOUT & CONTAINERS
   ======================================== */

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

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: 0 auto;
    border-radius: 2px;
}

/* ========================================
   MODE TOGGLE BUTTON
   ======================================== */

#mode-button {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 56px;
    height: 56px;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

#mode-button:hover {
    transform: scale(1.1) rotate(180deg);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

#mode-button:active {
    transform: scale(0.95);
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-md) 0;
    z-index: 999;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: var(--spacing-xs) 0;
}

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

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

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

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

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

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

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

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: -10%;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-greeting {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.hero-name {
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--text-primary), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

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

.social-link {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.hero-image {
    position: relative;
}

.profile-card {
    position: relative;
    background: var(--bg-secondary);
    border-radius: 1.5rem;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
}

#profile-photo {
    width: 100%;
    border-radius: 1rem;
    display: block;
    transition: transform var(--transition-slow);
}

.profile-card:hover #profile-photo {
    transform: scale(1.02);
}

.profile-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.2);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--text-tertiary);
    font-size: 1.25rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

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

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

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-text {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: 1rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

.lead-text {
    font-size: 1.125rem;
    line-height: 1.9;
    margin-bottom: var(--spacing-lg);
}

#profile-intro-text span {
    color: var(--primary);
    font-weight: 600;
    position: relative;
}

#hajimemashite {
    display: inline-block;
    color: var(--accent);
    font-weight: 700;
    margin: 0 0.25rem;
}

.about-stats {
    display: grid;
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: 1rem;
    border: 1px solid var(--border);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.projects {
    background: var(--bg-primary);
}

.project-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    background: var(--bg-secondary);
    border-radius: 1.5rem;
    padding: var(--spacing-3xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-slow);
}

.project-featured:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-image-container {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    background: var(--bg-primary);
    padding: var(--spacing-xl);
}

#project-image {
    width: 100%;
    display: block;
    transition: transform var(--transition-slow);
}

.project-featured:hover #project-image {
    transform: scale(1.05) rotate(2deg);
}

.project-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.project-details h3 {
    margin-bottom: var(--spacing-md);
}

#project-text {
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

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

.tech-badge {
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

#github-link {
    display: inline-flex;
}

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

.skills {
    background: var(--bg-secondary);
}

.skills-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.skills-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.skill-category {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: 1rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

.category-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary);
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.skill-card,
.skill-images-container {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    text-align: center;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.skill-card:hover,
.skill-images-container:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    background: var(--bg-primary);
}

.skill-card img,
#html-image img,
#js-image img,
#c-image img,
#python-image img,
#mysql-image img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-base);
}

.skill-card:hover img,
.skill-images-container:hover img {
    transform: scale(1.1) rotate(5deg);
}

.skill-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.skills-visual {
    text-align: center;
}

#skillset-image {
    width: 100%;
    max-width: 400px;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.1));
}

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

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

.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-text {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.contact-text h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

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

.contact-card {
    background: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: 1rem;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.contact-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-info p {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin: 0;
}

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

.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-content p {
    margin: 0;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.footer-links a {
    color: var(--primary);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a:hover {
    text-decoration: underline;
}

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

@media (max-width: 1024px) {
    .hero-content,
    .about-content,
    .project-featured,
    .skills-content {
        grid-template-columns: 1fr;
    }
    
    .skills-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero {
        padding-top: 80px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .about-text {
        padding: var(--spacing-lg);
    }
    
    .project-featured {
        padding: var(--spacing-lg);
    }
    
    .skill-items {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    #mode-button {
        width: 48px;
        height: 48px;
        top: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .hero-buttons {
        width: 100%;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .skill-items {
        grid-template-columns: 1fr;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   ANIMATIONS & EFFECTS
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Smooth fade-in for sections */
.section {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

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

/* Selection styles */
::selection {
    background: var(--primary);
    color: white;
}

::-moz-selection {
    background: var(--primary);
    color: white;
}
/* Email Fix - Prevent text overflow */
.contact-info p {
    word-break: break-word !important;
    overflow-wrap: break-word !important;
    font-size: 0.65rem !important;
}