/* ============================================
   NISHCHAL PANTA - PORTFOLIO WEBSITE
   Modern Premium CSS Stylesheet
   ============================================ */

/* CSS Variables & Theme System */
:root {
    /* Light Mode Colors */
    --color-bg: #ffffff;
    --color-surface: #f8f9fa;
    --color-surface-alt: #f0f2f5;
    --color-text: #1a1a2e;
    --color-text-secondary: #64748b;
    --color-border: #e2e8f0;
    --color-primary: #0f172a;
    --color-primary-light: #1e293b;
    --color-accent: #3b82f6;
    --color-accent-dark: #1e40af;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    /* Dark Mode Colors (will be overridden) */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-sans: 'Poppins', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

/* Dark Mode Theme */
[data-theme="dark"] {
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-surface-alt: #334155;
    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-border: #334155;
    --color-primary: #e2e8f0;
    --color-primary-light: #f1f5f9;
}

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

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2rem, 6vw, 3.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.25rem, 3.5vw, 1.875rem);
}

h4 {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
}

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

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    z-index: 1;
    overflow: visible;
}

.btn i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: all var(--transition-base);
}

.btn-primary {
    background-color: var(--color-accent);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
    color: white;
}

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-surface-alt);
    transform: translateY(-2px);
    color: var(--color-text);
}

.btn-outline {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background-color: transparent;
}

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

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-text);
}

.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

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

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

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

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

.nav-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.theme-toggle,
.menu-toggle {
    background: var(--color-surface);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: all var(--transition-base);
    font-size: 1.2rem;
}

.theme-toggle:hover,
.menu-toggle:hover {
    background-color: var(--color-surface-alt);
    transform: scale(1.1);
}

.menu-toggle {
    display: none;
}

/* Laptop Breakpoint: 992px - 1199px */
@media (max-width: 1199px) and (min-width: 992px) {
    .container {
        max-width: 960px;
    }
    
    h1 {
        font-size: clamp(2.2rem, 5vw, 3.2rem);
    }
    
    .hero-buttons {
        flex-wrap: wrap;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet Breakpoint: 768px - 991px */
@media (max-width: 991px) and (min-width: 768px) {
    .container {
        max-width: 720px;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile Menu */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: var(--spacing-md);
        background-color: var(--color-surface);
        padding: var(--spacing-xl);
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    h1 {
        font-size: 2.5rem;
    }
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.animated-gradient {
    position: absolute;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg,
        var(--color-accent),
        var(--color-accent-dark),
        #06b6d4,
        var(--color-accent));
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    opacity: 0.1;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}

@media (max-width: 1199px) {
    .hero-content {
        gap: clamp(1.5rem, 4vw, 3rem);
    }
}

@media (max-width: 991px) {
    .hero-content {
        gap: clamp(1.5rem, 4vw, 2.5rem);
    }
}

.hero-text {
    animation: slideInLeft 0.8s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xl);
}

.typing-container {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    font-weight: 600;
    min-height: 2.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-accent);
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-secondary);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-2xl);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: clamp(0.75rem, 2vw, 1.5rem);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero-buttons .btn {
    padding: clamp(0.75rem, 2vw, 1rem) clamp(1.25rem, 3vw, 1.5rem);
    font-size: clamp(0.9rem, 1.5vw, 1rem);
}

.hero-social {
    display: flex;
    gap: clamp(0.75rem, 2vw, 1.5rem);
    flex-wrap: wrap;
}

.hero-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: clamp(44px, 10vw, 50px);
    height: clamp(44px, 10vw, 50px);
    border-radius: 50%;
    background-color: var(--color-surface);
    color: var(--color-text);
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    transition: all var(--transition-base);
}

.hero-social a:hover {
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    color: white;
    transform: translateY(-5px);
}

.hero-image {
    animation: slideInRight 0.8s ease-out;
}

.profile-container {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
}

.profile-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    border-radius: var(--radius-xl);
    font-size: 6rem;
    color: rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.profile-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    animation: shine 6s infinite;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-slow) ease-out;
}

.hero-image:hover .profile-image {
    transform: scale(1.05);
}

@keyframes shine {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
    animation: bounce 2s infinite;
}

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

/* ============================================
   SECTIONS
   ============================================ */

section {
    padding: var(--spacing-4xl) 0;
}

section:nth-child(odd) {
    background-color: var(--color-bg);
}

section:nth-child(even) {
    background-color: var(--color-surface);
}

.section-header {
    text-align: center;
    margin-bottom: clamp(1.5rem, 3vw, 3rem);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-text);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: clamp(-8px, -1vw, -10px);
    left: 50%;
    transform: translateX(-50%);
    width: clamp(40px, 10vw, 60px);
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), #0284c7);
    border-radius: 2px;
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    margin-top: var(--spacing-lg);
}

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

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

.about-text > p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.9;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: var(--spacing-sm);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-lg);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid var(--color-border);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: clamp(1.5rem, 3vw, 2.5rem);
}

@media (max-width: 1199px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

.skill-category {
    padding: clamp(1rem, 3vw, 1.5rem);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.skill-category:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--color-text);
}

.category-title i {
    color: var(--color-accent);
    font-size: 1.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.skill-tag {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    color: white;
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-base);
}

.skill-tag:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: var(--spacing-3xl);
}

@media (max-width: 1199px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

.project-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: clamp(1rem, 2.5vw, 1.5rem);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

.project-header {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.project-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: 0;
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.project-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    font-size: 0.85rem;
}

.project-highlights span {
    background-color: var(--color-surface-alt);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
}

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

.tech-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-accent);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--color-accent);
}

.project-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: auto;
}

.project-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-accent);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition-base);
    flex-grow: 1;
    text-decoration: none;
    position: relative;
    z-index: 1;
    overflow: visible;
}

.project-link i {
    opacity: 1;
    transition: all var(--transition-base);
}

.project-link:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    color: white;
}

/* AWS Projects Card Styling */
.aws-projects-card {
    background: linear-gradient(135deg, rgba(255, 153, 0, 0.05), rgba(35, 47, 62, 0.05));
    border: 2px solid rgba(255, 153, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.aws-projects-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 153, 0, 0.1), transparent);
    border-radius: 50%;
    pointer-events: none;
}

.aws-icon {
    background: linear-gradient(135deg, #FF9900, #FF9900);
    box-shadow: 0 8px 16px rgba(255, 153, 0, 0.3);
}

.aws-projects-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(255, 153, 0, 0.5);
    box-shadow: 0 20px 40px rgba(255, 153, 0, 0.2);
}

.projects-cta {
    text-align: center;
    padding: var(--spacing-2xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--color-border);
}

.projects-cta p {
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
}

/* ============================================
   CERTIFICATIONS SECTION
   ============================================ */

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: clamp(1.5rem, 3vw, 2rem);
}

@media (max-width: 1199px) {
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .certifications-grid {
        grid-template-columns: 1fr;
    }
}

.cert-card {
    padding: var(--spacing-xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-base);
}

.cert-card.highlight {
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
}

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

.cert-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-accent);
}

.cert-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.cert-issuer {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.cert-date {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.cert-badge {
    display: inline-block;
    color: var(--color-success);
    font-size: 0.85rem;
    font-weight: 600;
}

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

.education-content {
    max-width: 800px;
    margin: 0 auto;
}

.education-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    border: 2px solid var(--color-accent);
}

.education-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-lg);
}

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

.education-duration {
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
}

.education-institution {
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

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

.education-details h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.coursework-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.coursework-tags span {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-surface-alt);
    color: var(--color-text);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    border: 1px solid var(--color-border);
}

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

/* ============================================
   JOURNEY TIMELINE
   ============================================ */

.timeline {
    position: relative;
    padding: var(--spacing-2xl) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-accent), #0284c7);
}

.timeline-item {
    margin-bottom: var(--spacing-3xl);
    display: flex;
    align-items: flex-start;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-marker {
    position: relative;
    z-index: 10;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.timeline-content {
    padding: var(--spacing-lg);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    width: calc(50% - 40px);
    margin: 0 var(--spacing-lg);
}

.timeline-content h3 {
    margin-bottom: var(--spacing-sm);
}

.timeline-date {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

/* Mobile Timeline */
@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        margin-left: 80px;
    }
    
    .timeline-marker {
        position: absolute;
        left: -5px;
    }
    
    .timeline-content {
        width: 100%;
        margin: var(--spacing-lg) 0;
    }
}

/* ============================================
   CV SECTION
   ============================================ */

.cv-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.cv-preview {
    display: flex;
    justify-content: center;
}

.cv-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    border: 2px solid var(--color-accent);
    max-width: 300px;
    transition: all var(--transition-base);
}

.cv-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.cv-icon {
    font-size: 4rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.cv-card h3 {
    margin-bottom: var(--spacing-lg);
}

.cv-card p {
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.cv-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-size: 0.9rem;
}

.cv-highlights span {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text-secondary);
}

.cv-highlights i {
    color: var(--color-success);
}

.cv-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.cv-info h3 {
    margin-bottom: var(--spacing-lg);
}

.highlight-section {
    margin-bottom: var(--spacing-lg);
}

.highlight-section h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.highlight-section ul {
    list-style: none;
}

.highlight-section li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--color-text-secondary);
}

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

.pdf-note {
    background-color: var(--color-surface-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent);
    font-size: 0.9rem;
    margin-top: var(--spacing-lg);
}

.pdf-note p {
    margin-bottom: 0;
}

.pdf-note code {
    background-color: var(--color-surface);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    color: var(--color-accent);
}

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

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

@media (max-width: 991px) {
    .contact-content {
        grid-template-columns: 1fr;
    }
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-xl);
}

@media (max-width: 991px) {
    .contact-info {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (max-width: 767px) {
    .contact-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

.contact-item {
    padding: var(--spacing-lg);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 100%;
}

.contact-item:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(59, 130, 246, 0.02));
}

.contact-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(59, 130, 246, 0.05));
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.contact-item:hover .contact-icon {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0.1));
    transform: scale(1.1);
}

.contact-item h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    color: var(--color-text);
}

.contact-item a,
.contact-item p {
    word-break: break-word;
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-base);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    display: block;
    margin: 0 auto;
    max-width: 100%;
    overflow-wrap: break-word;
    line-height: 1.5;
}

.contact-item a:hover {
    color: white;
    background-color: rgba(59, 130, 246, 0.2);
    text-decoration: underline;
}

.contact-form-wrapper {
    background-color: var(--color-surface);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.contact-form-wrapper h3 {
    margin-bottom: var(--spacing-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.form-group label {
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.btn-submit {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
}

.contact-status {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 500;
    min-height: 20px;
    animation: slideInDown 0.3s ease-out;
}

.contact-status.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.contact-status.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.contact-status.sending {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

.social-links-section {
    text-align: center;
}

.social-links-section h3 {
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.social-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    transition: all var(--transition-base);
    font-weight: 600;
    text-decoration: none;
    position: relative;
    z-index: 1;
    overflow: visible;
}

.social-button i {
    opacity: 1;
    transition: all var(--transition-base);
}

.social-button:hover {
    background: linear-gradient(135deg, var(--color-accent), #0284c7);
    color: white;
    border-color: transparent;
    transform: translateY(-3px);
}

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

.footer {
    background-color: var(--color-surface);
    color: var(--color-text);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
}

.footer-section p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
    font-size: 0.95rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-md);
}

.footer-section a {
    color: var(--color-accent);
    transition: color var(--transition-base);
    font-weight: 500;
}

.footer-section a:hover {
    color: var(--color-accent-dark);
    text-decoration: underline;
}

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

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: white;
    transition: all var(--transition-base);
    text-decoration: none;
}

.footer-social a:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-3px);
    text-decoration: none;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.footer-bottom i {
    color: var(--color-error);
}

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

@media (max-width: 768px) {
    h1 {
        font-size: clamp(1.75rem, 4vw, 2.5rem);
    }
    
    h2 {
        font-size: clamp(1.5rem, 3.5vw, 2rem);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .hero-image {
        display: block;
        margin-top: var(--spacing-2xl);
    }
    
    .profile-image {
        max-width: 300px;
        margin: 0 auto;
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 4vw, 2.5rem);
    }
    
    .typing-container {
        font-size: clamp(1rem, 2vw, 1.3rem);
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-md) var(--spacing-lg);
        min-height: 44px;
    }
    
    .social-button {
        padding: var(--spacing-md) var(--spacing-lg);
        min-height: 44px;
        min-width: 44px;
    }
    
    .project-link {
        min-height: 44px;
    }
    
    .about-content,
    .cv-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .about-stats,
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: clamp(1rem, 2vw, 1.5rem);
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card {
        padding: var(--spacing-lg);
    }
    
    .skill-category {
        padding: var(--spacing-lg);
    }
    
    .timeline-item {
        padding: var(--spacing-lg);
    }
    
    .nav-menu {
        padding: var(--spacing-md);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-social {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .section-title {
        font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    }
}
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    h1 {
        font-size: clamp(1.5rem, 3vw, 2rem);
    }
    
    h2 {
        font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: clamp(1.25rem, 3vw, 1.75rem);
    }
    
    .typing-container {
        font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    }
    
    .hero-social {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .hero-social a {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
        min-height: 40px;
    }
    
    .project-card {
        padding: var(--spacing-md);
    }
    
    .project-title {
        font-size: clamp(1rem, 2.5vw, 1.25rem);
    }
    
    .skill-tag {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .contact-item h3 {
        font-size: clamp(1rem, 2vw, 1.125rem);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .section-header {
        margin-bottom: var(--spacing-xl);
    }
}

/* ============================================
   ACCESSIBILITY & ANIMATIONS
   ============================================ */

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

/* Loading Animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-base);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal.fade-up {
    animation: fadeUp var(--transition-base) ease-out forwards;
}

.reveal.slide-left {
    animation: slideInLeft var(--transition-base) ease-out forwards;
}

.reveal.slide-right {
    animation: slideInRight var(--transition-base) ease-out forwards;
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes staggerIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Staggered animation for multiple items */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-base);
}

.stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.stagger-item:nth-child(1) { transition-delay: 0ms; }
.stagger-item:nth-child(2) { transition-delay: 100ms; }
.stagger-item:nth-child(3) { transition-delay: 200ms; }
.stagger-item:nth-child(4) { transition-delay: 300ms; }
.stagger-item:nth-child(5) { transition-delay: 400ms; }
.stagger-item:nth-child(6) { transition-delay: 500ms; }

/* Hover lift effect for cards */
.project-card,
.cert-card,
.feature-card,
.education-card {
    transition: all var(--transition-base);
}

.project-card.in-view,
.cert-card.in-view,
.feature-card.in-view,
.education-card.in-view {
    animation: liftIn var(--transition-slow) cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes liftIn {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes skillFill {
    from {
        width: 0 !important;
        opacity: 0;
    }
    to {
        width: 100% !important;
        opacity: 1;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .scroll-indicator,
    .btn-outline,
    .contact-form {
        display: none;
    }
    
    body {
        background-color: white;
        color: black;
    }
}