/* ===================================
   PORTFOLIO WEBSITE - SPACE THEME
   Christian Thede
   =================================== */

/* === ROOT & VARIABLES === */
:root {
    /* Colors */
    --bg-primary: #070a20;
    --bg-secondary: #0f1535;
    --bg-tertiary: #141d3a;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
    --gradient-bg: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
                    radial-gradient(circle at 50% 50%, rgba(30, 58, 138, 0.05) 0%, transparent 60%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Animation */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* === ANIMATED BACKGROUND === */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.bg-gradient {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--gradient-bg);
    animation: gradientShift 40s ease infinite;
}

#particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 1.3; }
}

@keyframes twinkleSlow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

@keyframes twinkling {
    0%, 100% { opacity: 0.2; }
    25% { opacity: 0.8; }
    50% { opacity: 1; }
    75% { opacity: 0.4; }
}

/* === NAVIGATION === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: var(--transition-fast);
}

.logo:hover {
    color: var(--accent-primary);
    transform: scale(1.05);
}

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

.logo-text {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* === CONTAINER === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    min-height: 100vh;
    padding: 8rem 0 4rem;
    position: relative;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
}

/* === HERO SECTION === */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 6rem;
    padding-bottom: 12rem;
    min-height: 100vh;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

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

.greeting {
    display: block;
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.name {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.typing-text {
    font-family: var(--font-mono);
}

.cursor {
    animation: blink 1s infinite;
    color: var(--accent-primary);
}

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

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    max-width: 400px;
    margin: 0 auto;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* === SPOTIFY WIDGET === */
.spotify-widget {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    animation: fadeInRight 0.8s ease 0.2s both;
}

.spotify-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.spotify-icon {
    color: #1DB954;
    flex-shrink: 0;
}

.spotify-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

#spotify-status-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.spotify-content {
    min-height: 100px;
}

.spotify-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 2rem 0;
}

.pulse {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-primary);
    animation: pulseGrow 1.5s ease-in-out infinite;
}

@keyframes pulseGrow {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.6;
    }
}

.spotify-track {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.track-image {
    width: 64px;
    height: 64px;
    border-radius: 0.5rem;
    object-fit: cover;
}

.track-info h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.track-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* === SCROLL INDICATOR === */
.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: fadeIn 1s ease 1s both;
    z-index: 10;
}

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

.wheel {
    width: 3px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { top: 8px; opacity: 1; }
    100% { top: 20px; opacity: 0; }
}

.scroll-indicator p {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* === HIGHLIGHTS SECTION === */
.highlights {
    background: var(--bg-secondary);
    min-height: auto;
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.highlight-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
}

.highlight-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 40px var(--accent-glow);
}

.highlight-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: 1rem;
    color: var(--accent-primary);
}

.highlight-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.highlight-card p {
    color: var(--text-secondary);
    font-size: 0.938rem;
}

/* === PAGE HEADER === */
.page-header {
    text-align: center;
    margin-bottom: 4rem;
    padding-top: 2rem;
    animation: fadeInUp 0.6s ease;
}

.page-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* === ABOUT PAGE === */
.about-page {
    padding-top: 8rem;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.063rem;
    line-height: 1.8;
}

.about-text strong {
    color: var(--text-primary);
}

.code-preview {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.code-header {
    background: var(--bg-secondary);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
}

.code-dot:nth-child(1) { background: #ff5f57; }
.code-dot:nth-child(2) { background: #ffbd2e; }
.code-dot:nth-child(3) { background: #28ca42; }

.code-preview pre {
    padding: 1.5rem;
    overflow-x: auto;
}

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

.code-keyword { color: #c792ea; }
.code-var { color: #82aaff; }
.code-prop { color: #ffcb6b; }
.code-string { color: #c3e88d; }

/* === SECTION BLOCK === */
.section-block {
    animation: fadeInUp 0.6s ease;
}

.block-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

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

.education-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2.5rem;
}

.education-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

.education-date {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.education-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tag {
    background: var(--accent-glow);
    color: var(--accent-primary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

/* === SKILLS === */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.skill-category h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--accent-primary);
}

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

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.skill-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 1s ease;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* === DIFFERENTIATORS === */
.differentiators {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.diff-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: all var(--transition-normal);
}

.diff-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.diff-number {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.diff-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.diff-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === PROJECTS PAGE === */
.projects-page {
    padding-top: 8rem;
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-family: var(--font-primary);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-primary);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
    transition: all var(--transition-normal);
    animation: fadeInUp 0.6s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px var(--accent-glow);
    border-color: var(--accent-primary);
}

.project-image {
    position: relative;
    width: 100%;
    height: 200px;
    background: var(--bg-tertiary);
    overflow: hidden;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.project-link-btn {
    background: var(--gradient-primary);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: transform var(--transition-fast);
}

.project-link-btn:hover {
    transform: scale(1.05);
}

.project-info {
    padding: 1.5rem;
}

.project-status {
    margin-bottom: 0.75rem;
}

.status-badge {
    display: inline-block;
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-planning {
    background: rgba(251, 191, 36, 0.1);
    color: #fbbf24;
}

.project-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.project-info p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

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

.tech-badge {
    background: var(--accent-glow);
    color: var(--accent-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.813rem;
    font-family: var(--font-mono);
}

.projects-cta {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.projects-cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

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

/* === CONTACT PAGE === */
.contact-page {
    padding-top: 8rem;
}

.contact-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.info-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.info-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: 1rem;
    color: var(--accent-primary);
}

.info-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.info-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.info-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.info-link:hover {
    text-decoration: underline;
}

.contact-form-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 3rem;
}

.form-intro {
    margin-bottom: 2rem;
}

.form-intro h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

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

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.875rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: fit-content;
}

.form-message {
    padding: 1rem;
    border-radius: 0.5rem;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid #10b981;
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid #ef4444;
}

.quick-links {
    text-align: center;
}

.quick-links h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.quick-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.quick-link:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

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

/* === FOOTER === */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}

.footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* === ANIMATIONS === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

/* === LOADING STATES & POLISH === */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.btn:disabled,
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn:disabled:hover,
button:disabled:hover {
    transform: none !important;
}

.spotify-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.spotify-loading .spinner {
    width: 24px;
    height: 24px;
    border-width: 3px;
}

/* Smooth transitions for all interactive elements */
button, a, input, textarea, select {
    transition: all var(--transition-fast);
}

/* Focus states for accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Selection styling */
::selection {
    background: var(--accent-primary);
    color: var(--text-primary);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

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

body::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 5px;
}

body::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* Loading animation for images */
img {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

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

/* Pulse animation for call-to-action elements */
@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
    }
    50% {
        box-shadow: 0 6px 30px rgba(99, 102, 241, 0.5);
    }
}

.btn-primary:not(:disabled) {
    animation: pulse 2s infinite;
}

/* === RESPONSIVE === */
@media (max-width: 968px) {
    .hero {
        padding-bottom: 14rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .spotify-widget {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .highlights-grid,
    .differentiators,
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .about-intro {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-bottom: 16rem;
        min-height: auto;
    }
    
    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        gap: 0;
        padding: 2rem;
        border-top: 1px solid var(--border-color);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
        opacity: 0;
        transform: translateY(-20px);
        pointer-events: none;
        transition: all var(--transition-normal);
        z-index: 999;
    }
    
    .nav-links.active {
        display: flex;
        opacity: 1;
        transform: translateY(0);
        pointer-events: all;
    }
    
    .nav-link {
        width: 100%;
        padding: 1rem 0;
        font-size: 1.1rem;
        text-align: center;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .page-title {
        font-size: 2.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 6rem 0 3rem;
    }
    
    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding-bottom: 18rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
}