/* assets/css/main.css */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #7c3aed;
    --color-accent: #06b6d4;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-border: #e5e7eb;
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
    
    --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);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --transition-fast: 150ms;
    --transition-normal: 300ms;
    --transition-slow: 500ms;
}

.dark-mode {
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-secondary: #8b5cf6;
    --color-accent: #06b6d4;
    --color-text: #f9fafb;
    --color-text-light: #d1d5db;
    --color-bg: #111827;
    --color-bg-secondary: #1f2937;
    --color-border: #374151;
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
}

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

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

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

.skip-to-content {
    position: absolute;
    top: -40px;
    right: 0;
    background: var(--color-primary);
    color: white;
    padding: 8px 16px;
    z-index: 9999;
    text-decoration: none;
    border-radius: var(--radius-sm);
}

.skip-to-content:focus {
    top: 0;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    right: 50%;
    transform: translateX(50%);
    width: 60px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 2px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    gap: 8px;
}

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

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

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

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

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

.btn-download:hover {
    background: #0da271;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 80px 20px 40px;
}

.hero-background {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(37, 99, 235, 0.1) 0%,
        rgba(124, 58, 237, 0.05) 50%,
        rgba(6, 182, 212, 0.05) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.typing-text {
    display: inline-block;
    border-right: 3px solid var(--color-primary);
    animation: blink 1s infinite;
    padding-left: 4px;
}

@keyframes blink {
    0%, 100% { border-color: var(--color-primary); }
    50% { border-color: transparent; }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

.hero-highlights {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 3rem;
}

.highlight-badge {
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    right: 50%;
    transform: translateX(50%);
}

.scroll-indicator span {
    display: block;
    width: 20px;
    height: 20px;
    border-bottom: 2px solid var(--color-primary);
    border-left: 2px solid var(--color-primary);
    transform: rotate(-45deg);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 0;
        transform: rotate(-45deg) translate(0, 0);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: rotate(-45deg) translate(-10px, 10px);
    }
}

/* Sticky Navigation */
.sticky-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.dark-mode .sticky-nav {
    background: rgba(17, 24, 39, 0.95);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-weight: bold;
    font-size: 1.2rem;
}

.brand-text {
    font-weight: bold;
    font-size: 1.2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 600;
    padding: 8px 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    border-radius: 1px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.theme-toggle-btn {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    position: relative;
    transition: all var(--transition-normal);
}

.theme-toggle-btn::before {
    content: '';
    position: absolute;
    right: 8px;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    transition: all var(--transition-normal);
}

.dark-mode .theme-toggle-btn::before {
    right: calc(100% - 28px);
}

.sun-icon,
.moon-icon {
    font-size: 1.2rem;
    z-index: 1;
}

.moon-icon {
    margin-right: auto;
}

.sun-icon {
    margin-left: auto;
}

/* About Section */
.about-section {
    padding: 100px 0;
    background: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.story-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 3rem;
}

.story-card {
    background: var(--color-bg);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.story-card:hover {
    transform: translateY(-5px);
}

.story-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.story-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.values-box {
    background: var(--color-primary);
    color: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-top: 40px;
}

.values-box h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.values-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.values-list li {
    padding: 8px 0;
    position: relative;
    padding-right: 20px;
}

.values-list li::before {
    content: '✓';
    position: absolute;
    right: 0;
    top: 8px;
    font-weight: bold;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 100px;
}

.stat-card {
    background: var(--color-bg);
    padding: 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.stat-label {
    color: var(--color-text-light);
    font-size: 1rem;
}

/* Skills Section */
.skills-section {
    padding: 100px 0;
}

.skills-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
    font-size: 0.9rem;
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 4rem;
}

.skill-card {
    background: var(--color-bg-secondary);
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

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

.skill-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.skill-icon {
    font-size: 1.5rem;
}

.skill-name {
    font-size: 1.25rem;
    font-weight: 600;
    flex: 1;
}

.skill-level {
    background: var(--color-primary);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.skill-progress {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    margin-bottom: 12px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 4px;
    width: var(--progress);
    transition: width 1s ease-in-out;
}

.skill-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.skill-years {
    color: var(--color-text-light);
}

.skill-tag {
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
}

.skill-desc {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

.learning-section {
    background: var(--color-bg-secondary);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 2px dashed var(--color-border);
    text-align: center;
}

.learning-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--color-text);
}

.learning-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.learning-tag {
    background: rgba(6, 182, 212, 0.1);
    color: var(--color-accent);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

/* Experience Section */
.experience-section {
    padding: 100px 0;
    background: var(--color-bg-secondary);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    right: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    padding-right: 80px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    right: 20px;
    top: 10px;
    width: 20px;
    height: 20px;
    background: var(--color-bg);
    border: 3px solid var(--color-primary);
    border-radius: 50%;
    z-index: 1;
}

.timeline-date {
    position: absolute;
    right: -120px;
    top: 10px;
    background: var(--color-primary);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
}

.timeline-content {
    background: var(--color-bg);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-primary);
}

.timeline-company {
    color: var(--color-text-light);
    margin-bottom: 12px;
    font-size: 1rem;
}

.timeline-desc {
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.7;
}

.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.timeline-tech span {
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
}

/* Portfolio Section */
.portfolio-section {
    padding: 100px 0;
}

.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.portfolio-filter-btn {
    padding: 8px 20px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
    font-size: 0.9rem;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.portfolio-image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.image-placeholder {
    background: rgba(255, 255, 255, 0.2);
    padding: 20px 40px;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.portfolio-content {
    padding: 24px;
}

.portfolio-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-text);
}

.portfolio-desc {
    color: var(--color-text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.portfolio-tech span {
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
}

.portfolio-view-btn {
    width: 100%;
    padding: 12px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
    font-weight: 600;
}

.portfolio-view-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* Blog Section */
.blog-section {
    padding: 100px 0;
    background: var(--color-bg-secondary);
}

.blog-search {
    max-width: 500px;
    margin: 0 auto 3rem;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 16px 50px 16px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: 1rem;
}

.search-btn {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--color-text-light);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--color-bg);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-normal);
}

.blog-card:hover {
    transform: translateY(-5px);
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.blog-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-text);
    line-height: 1.4;
}

.blog-excerpt {
    color: var(--color-text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.blog-tag {
    background: rgba(124, 58, 237, 0.1);
    color: var(--color-secondary);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
}

.blog-read-more {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.blog-read-more::after {
    content: '←';
    transition: transform var(--transition-fast);
}

.blog-read-more:hover::after {
    transform: translateX(-4px);
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.contact-card {
    background: var(--color-bg-secondary);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.contact-card-title {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.contact-card-text {
    color: var(--color-text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    font-size: 1.5rem;
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.contact-method-label {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.contact-method-value {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
}

.contact-method-value:hover {
    color: var(--color-primary);
}

.social-links {
    background: var(--color-bg-secondary);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.social-title {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.social-icons {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateX(-5px);
}

.social-icon {
    font-size: 1.5rem;
}

.social-text {
    font-weight: 600;
    flex: 1;
}

.contact-form-container {
    background: var(--color-bg);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.form-label::after {
    content: ' *';
    color: var(--color-error);
}

.form-input,
.form-textarea {
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-error {
    color: var(--color-error);
    font-size: 0.9rem;
    min-height: 20px;
}

.btn-submit {
    margin-top: 16px;
}

.form-success-message,
.form-error-message {
    text-align: center;
    padding: 40px;
    border-radius: var(--radius-lg);
}

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

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

.success-icon,
.error-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.form-success-message h3,
.form-error-message h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.form-success-message p,
.form-error-message p {
    color: var(--color-text-light);
}

/* Footer */
.site-footer {
    background: var(--color-bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-logo {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    font-weight: bold;
}

.footer-name {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-text);
}

.footer-tagline {
    color: var(--color-text-light);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.footer-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-menu a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-newsletter {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-text {
    color: var(--color-text-light);
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-primary);
}

.newsletter-btn {
    padding: 12px 24px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-primary);
    font-weight: 600;
    transition: background var(--transition-fast);
}

.newsletter-btn:hover {
    background: var(--color-primary-dark);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.footer-extra {
    display: flex;
    align-items: center;
    gap: 24px;
}

.footer-link {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.api-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.api-badge {
    background: var(--color-warning);
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

.api-text {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-container {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-xl);
}

.modal-close {
    position: absolute;
    top: 20px;
    left: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-text-light);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-bg-secondary);
    color: var(--color-text);
}

.modal-content {
    padding: 60px 40px 40px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        position: static;
        flex-direction: row;
        justify-content: space-around;
    }
    
    .stat-card {
        flex: 1;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        height: calc(100vh - 70px);
        background: var(--color-bg);
        flex-direction: column;
        padding: 40px 20px;
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-lg);
        gap: 20px;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .timeline::before {
        right: 20px;
    }
    
    .timeline-item {
        padding-right: 60px;
    }
    
    .timeline-date {
        position: static;
        display: inline-block;
        margin-bottom: 12px;
        right: auto;
    }
    
    .timeline-item::before {
        right: 10px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .highlight-badge {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-container {
        padding: 20px;
    }
    
    .modal-container {
        width: 95%;
    }
    
    .modal-content {
        padding: 40px 20px 20px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero-title .typing-text {
        animation: none;
        border-right: none;
    }
    
    .scroll-indicator span {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .sticky-nav,
    .hero-actions,
    .contact-form-container,
    .site-footer,
    .back-to-top {
        display: none !important;
    }
    
    body {
        color: #000 !important;
        background: #fff !important;
    }
    
    .container {
        max-width: 100% !important;
    }
    
    section {
        page-break-inside: avoid;
        margin: 40px 0;
    }
    
    a {
        color: #000 !important;
        text-decoration: none !important;
    }
    
    .btn {
        display: none !important;
    }
}