/* 
   ========================================================================
   SANTOSH KANDEL - PREMIUM PORTFOLIO STYLESHEET
   Features: Glassmorphism, Theme-Toggle Support, CSS Animations, Responsive
   ========================================================================
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- CUSTOM VARIABLES --- */
:root {
    /* Color Palette - Dark Theme (Default) */
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    /* Neon Glow Accents */
    --accent-teal: #10b981;
    --accent-purple: #8b5cf6;
    --accent-blue: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #10b981 0%, #3b82f6 50%, #8b5cf6 100%);
    --accent-gradient-hover: linear-gradient(135deg, #059669 0%, #2563eb 50%, #7c3aed 100%);
    
    /* Card Glassmorphism Tokens */
    --glass-bg: rgba(17, 24, 39, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    --glass-glow: rgba(59, 130, 246, 0.15);

    /* UI Tokens */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --header-height: 80px;
    --max-width: 1200px;
}

/* Light Theme Variables */
[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(15, 23, 42, 0.08);
    --glass-shadow: rgba(15, 23, 42, 0.05);
    --glass-glow: rgba(59, 130, 246, 0.08);
}

/* --- RESET & GENERAL STYLES --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 5px;
    border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

/* --- HELPER/UTILITY CLASSES --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 100px 0 80px;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    position: relative;
    z-index: 2;
}

.section-title span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3.5rem;
    position: relative;
    z-index: 2;
}

/* Modern Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--glass-glow);
}

.btn-primary:hover {
    background: var(--accent-gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.35);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
}

/* Glassmorphism Card base */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    box-shadow: 0 8px 32px var(--glass-shadow);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 10px 40px var(--glass-shadow), 0 0 20px var(--glass-glow);
}

/* --- HEADER & NAVIGATION --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: background var(--transition-normal), height var(--transition-normal), box-shadow var(--transition-normal);
}

header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    height: 70px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2.2rem;
    align-items: center;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.3rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width var(--transition-normal);
    border-radius: 2px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

/* Theme Toggle Button */
.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 10px var(--glass-shadow);
    color: var(--text-primary);
    transition: transform var(--transition-fast), background var(--transition-normal);
}

.theme-toggle:hover {
    transform: scale(1.05);
    background: var(--bg-tertiary);
}

.theme-toggle .sun-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .moon-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .sun-icon {
    display: block;
}

/* Mobile Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    width: 30px;
    height: 20px;
    justify-content: space-between;
    cursor: pointer;
}

.hamburger span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-fast);
    transform-origin: left center;
}

/* --- HERO SECTION --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

/* Background floating radial colors */
.hero::before, .hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.15;
    z-index: 0;
    pointer-events: none;
}

.hero::before {
    background: var(--accent-teal);
    top: 15%;
    right: 10%;
    animation: float-blob 20s infinite alternate;
}

.hero::after {
    background: var(--accent-purple);
    bottom: 15%;
    left: 10%;
    animation: float-blob 25s infinite alternate-reverse;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-tag {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.15;
}

.typewriter-container {
    height: 3.8rem;
    display: flex;
    align-items: center;
}

.typewriter-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    border-right: 3px solid var(--accent-teal);
    animation: blink-caret 0.75s step-end infinite;
    white-space: nowrap;
    padding-right: 4px;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 540px;
}

.hero-btns {
    display: flex;
    gap: 1.2rem;
}

/* Hero Tech Avatar Image Container */
.hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.avatar-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    padding: 8px;
    background: var(--accent-gradient);
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.25);
    animation: morph-blob 8s ease-in-out infinite alternate;
}

.avatar-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--bg-primary);
    background: var(--bg-secondary);
}

.avatar-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Floating Badges */
.floating-badge {
    position: absolute;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.8rem 1.2rem;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 10;
}

.badge-1 {
    top: 15%;
    left: -15px;
    animation: bounce 4s ease-in-out infinite;
}

.badge-2 {
    bottom: 15%;
    right: -15px;
    animation: bounce 4s ease-in-out infinite 2s;
}

.floating-badge i {
    font-size: 1.2rem;
    color: var(--accent-teal);
}

/* Scroll Down Indicator */
.scroll-down {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    z-index: 10;
    cursor: pointer;
}

.mouse-icon {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.mouse-wheel {
    width: 4px;
    height: 8px;
    background-color: var(--accent-teal);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 1.5s ease-in-out infinite;
}

/* --- ABOUT ME SECTION --- */
.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: flex-start;
}

.about-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.about-text p {
    margin-bottom: 1rem;
}

.about-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.detail-item {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
}

.detail-val {
    font-weight: 600;
    font-size: 1rem;
}

/* Cards for Education and Self Learning */
.about-extra {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.info-card {
    padding: 1.8rem;
}

.info-card-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.2rem;
}

.info-card-header i {
    font-size: 1.5rem;
    color: var(--accent-teal);
}

.info-card-header h4 {
    font-size: 1.2rem;
}

.edu-item, .learn-item {
    padding-left: 1.5rem;
    border-left: 2px solid var(--accent-purple);
    position: relative;
}

.edu-item::before, .learn-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent-teal);
}

.edu-title {
    font-weight: 700;
    font-size: 1rem;
}

.edu-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.edu-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.learn-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 0.5rem;
}

.learn-tag {
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 20px;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.learn-tag:hover {
    background: var(--accent-teal);
    color: #ffffff;
}

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

.service-card {
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-sm);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 1px solid var(--glass-border);
    color: var(--accent-teal);
    font-size: 1.8rem;
    transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
    background: var(--accent-teal);
    color: #ffffff;
    transform: rotate(5deg) scale(1.05);
}

.service-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.service-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent-teal);
}

.service-card:hover .service-link i {
    transform: translateX(4px);
}

.service-link i {
    transition: transform var(--transition-fast);
}

/* --- PROJECTS SECTION --- */
.projects-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.6rem 1.4rem;
    border-radius: 30px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-gradient);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 4px 12px var(--glass-glow);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2.2rem;
}

.project-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-img {
    height: 200px;
    position: relative;
    overflow: hidden;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-img img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(4px);
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.2rem;
    transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: transform var(--transition-normal);
}

.project-link-icon:hover {
    transform: scale(1.1);
}

.project-info {
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-tag {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-teal);
    margin-bottom: 0.6rem;
}

.project-card-title {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.2rem;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tech span {
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bg-tertiary);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    color: var(--text-secondary);
}

/* --- CONTACT SECTION --- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
}

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

.contact-details-list {
    margin: 2.2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-detail-card {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1.2rem;
}

.contact-icon-box {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-sm);
    background: var(--bg-tertiary);
    color: var(--accent-teal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    border: 1px solid var(--glass-border);
}

.contact-meta h5 {
    font-size: 0.88rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-meta p {
    font-size: 1rem;
    font-weight: 600;
}

.contact-socials {
    display: flex;
    gap: 1rem;
}

.social-circle {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    transition: all var(--transition-normal);
}

.social-circle:hover {
    background: var(--accent-gradient);
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-3px);
}

/* Contact Form Styling */
.contact-form {
    padding: 2.8rem;
}

.form-group-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
}

.form-group label {
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-control {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    padding: 0.8rem 1rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-control:focus {
    border-color: var(--accent-teal);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
    background: var(--bg-tertiary);
}

textarea.form-control {
    resize: none;
}

/* --- FOOTER --- */
footer {
    background: var(--bg-secondary);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 800;
}

.footer-logo span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--glass-border);
    padding-top: 2rem;
    color: var(--text-muted);
    font-size: 0.88rem;
}

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

.footer-bottom-links a:hover {
    color: var(--text-secondary);
}

/* Back to Top Indicator */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 24px var(--glass-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 99;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(59, 130, 246, 0.4);
}

/* --- KEYFRAME ANIMATIONS --- */
@keyframes float-blob {
    0% {
        transform: translateY(0px) scale(1);
    }
    50% {
        transform: translateY(-30px) scale(1.1);
    }
    100% {
        transform: translateY(0px) scale(1);
    }
}

@keyframes morph-blob {
    0% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    50% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
    100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
}

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

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: var(--accent-teal); }
}

@keyframes scroll-wheel {
    0% {
        opacity: 1;
        top: 6px;
    }
    50% {
        opacity: 0.3;
        top: 20px;
    }
    100% {
        opacity: 0;
        top: 20px;
    }
}

/* --- RESPONSIVE LAYOUT BREAKPOINTS --- */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-desc {
        max-width: 600px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        gap: 2.5rem;
        transition: left var(--transition-normal);
        z-index: 999;
        border-top: 1px solid var(--glass-border);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    /* Hamburger Active states */
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(2px, 2px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(2px, -2px);
    }
    
    .hero-title {
        font-size: 2.6rem;
    }
    
    .typewriter-container {
        height: 3rem;
    }
    
    .avatar-wrapper {
        width: 260px;
        height: 260px;
    }
    
    .floating-badge {
        display: none; /* Hide floating badges on mobile to prevent overlap */
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1.2rem;
        align-items: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* --- JOURNEY / TIMELINE SECTION STYLES --- */
.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: var(--glass-border);
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-item {
    position: relative;
    width: 50%;
    margin-bottom: 3rem;
    z-index: 2;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 3rem;
    text-align: left;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 3rem;
    text-align: right;
}

.timeline-dot {
    position: absolute;
    top: 24px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-teal);
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 10px var(--accent-teal);
    z-index: 3;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -8px;
}

.timeline-item:hover .timeline-dot {
    background: var(--accent-purple);
    transform: scale(1.2);
    box-shadow: 0 0 15px var(--accent-purple);
}

.timeline-content {
    padding: 2rem;
}

.timeline-date {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--accent-teal);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timeline-title {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
}

.timeline-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Responsiveness for Timeline */
@media (max-width: 768px) {
    .timeline-line {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 3rem !important;
        padding-right: 0 !important;
        text-align: left !important;
    }
    
    .timeline-dot {
        left: 12px !important;
    }
}