/* Reset dan Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color System */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-900: #1e3a8a;

    --secondary-50: #f0fdfa;
    --secondary-100: #ccfbf1;
    --secondary-500: #14b8a6;
    --secondary-600: #0d9488;
    --secondary-700: #0f766e;

    --accent-50: #fff7ed;
    --accent-500: #f97316;
    --accent-600: #ea580c;

    --success-50: #f0fdf4;
    --success-500: #22c55e;
    --success-600: #16a34a;

    --warning-50: #fefce8;
    --warning-500: #eab308;
    --warning-600: #ca8a04;

    --error-50: #fef2f2;
    --error-500: #ef4444;
    --error-600: #dc2626;

    /* Neutral Colors */
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;

    /* Spacing System */
    --spacing-1: 0.5rem;
    --spacing-2: 1rem;
    --spacing-3: 1.5rem;
    --spacing-4: 2rem;
    --spacing-6: 3rem;
    --spacing-8: 4rem;
    --spacing-12: 6rem;

    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --line-height-body: 1.6;
    --line-height-heading: 1.2;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Theme Variables */
[data-theme="light"] {
    --bg-primary: var(--neutral-50);
    --bg-secondary: white;
    --bg-tertiary: var(--neutral-100);
    --text-primary: var(--neutral-900);
    --text-secondary: var(--neutral-700);
    --text-tertiary: var(--neutral-500);
    --border-color: var(--neutral-200);
}

[data-theme="dark"] {
    --bg-primary: var(--neutral-900);
    --bg-secondary: var(--neutral-800);
    --bg-tertiary: var(--neutral-700);
    --text-primary: var(--neutral-50);
    --text-secondary: var(--neutral-300);
    --text-tertiary: var(--neutral-400);
    --border-color: var(--neutral-700);
}

/* Base Typography */
body {
    font-family: var(--font-family);
    line-height: var(--line-height-body);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    opacity: 0;
    animation: fadeIn 0.6s ease-in-out forwards;
}

h1, h2, h3, h4, h5, h6 {
    line-height: var(--line-height-heading);
    color: var(--text-primary);
    font-weight: 600;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-2);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-normal);
}

[data-theme="dark"] .navbar {
    background-color: rgba(38, 38, 38, 0.95);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.nav-profile-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-500);
}

.nav-brand-text {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--primary-600);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-600);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background-color: var(--primary-500);
    border-radius: 50%;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-size: 1.2rem;
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
}

/* Hero Section */
.hero-section {
    margin-top: 70px;
    padding: var(--spacing-12) 0;
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 50%, var(--accent-50) 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .hero-section {
    background: linear-gradient(135deg, var(--neutral-800) 0%, var(--neutral-700) 50%, var(--neutral-600) 100%);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%239C92AC" fill-opacity="0.04" fill-rule="nonzero"><circle cx="30" cy="30" r="2"/></g></svg>') repeat;
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-2);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    color: white;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-2xl);
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-md);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-4);
    line-height: 1.1;
}

.highlight {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-3);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-500);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
    background-color: var(--bg-secondary);
    border-color: var(--primary-500);
    transform: translateY(-2px);
}

.hero-image {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

/* Welcome Section (for home.html) */
.welcome-section {
    margin-top: 70px;
    padding: var(--spacing-12) 0;
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 50%, var(--accent-50) 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.welcome-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-2);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
    align-items: center;
}

.welcome-badge {
    background: linear-gradient(135deg, var(--secondary-500), var(--accent-500));
    color: white;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-2xl);
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-md);
}

.welcome-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-4);
    line-height: 1.1;
}

.welcome-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.welcome-stats {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-500);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.welcome-actions {
    display: flex;
    gap: var(--spacing-3);
}

.welcome-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-img {
    width: 400px;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 2;
}

.image-decoration {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-200), var(--secondary-200));
    border-radius: 50%;
    opacity: 0.3;
    z-index: 1;
}

/* Services Section */
.services-section {
    padding: var(--spacing-12) 0;
    background-color: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-6);
}

.service-card {
    background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
    padding: var(--spacing-6);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--secondary-500), var(--accent-500));
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-100), var(--secondary-100));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-4);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-3);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-4);
    line-height: 1.6;
}

.service-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.service-features li {
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-4);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-500);
    font-weight: bold;
}

/* About Section */
.about-section {
    padding: var(--spacing-12) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-4);
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.highlight-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-100), var(--secondary-100));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.highlight-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.highlight-item p {
    color: var(--text-secondary);
    margin: 0;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-12) 0;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-4);
    color: white;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-6);
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    gap: var(--spacing-3);
    justify-content: center;
}

.cta-actions .btn-primary {
    background-color: white;
    color: var(--primary-600);
}

.cta-actions .btn-outline {
    border-color: white;
    color: white;
}

.cta-actions .btn-outline:hover {
    background-color: white;
    color: var(--primary-600);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-3);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Expertise Section */
.expertise-section {
    padding: var(--spacing-12) 0;
    background-color: var(--bg-secondary);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-8);
}

.expertise-card {
    background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
    padding: var(--spacing-6);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--secondary-500), var(--accent-500));
}

.expertise-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.card-icon.survey {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
}

.card-icon.gis {
    background: linear-gradient(135deg, var(--secondary-500), var(--secondary-600));
}

.card-icon.analysis {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
}

.card-header h3 {
    font-size: 1.5rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.skill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-2);
}

.skill-name {
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
}

.skill-bar {
    flex: 1;
    height: 8px;
    background-color: var(--neutral-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

[data-theme="dark"] .skill-bar {
    background-color: var(--neutral-700);
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
    border-radius: var(--radius-lg);
    transition: width 1s ease-in-out;
    box-shadow: 0 2px 4px rgba(61, 233, 8, 0.2);
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3);
}

.software-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    background: linear-gradient(145deg, var(--bg-tertiary), var(--bg-secondary));
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
}

.software-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.software-item:hover {
    transform: translateY(-2px);
    background-color: var(--bg-secondary);
}

.software-item:hover::after {
    opacity: 1;
}

.software-logo {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.software-item span {
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
}

.expertise-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.expertise-list li {
    padding: var(--spacing-2) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-4);
}

.expertise-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-500);
    font-weight: bold;
}

/* Certifications */
.certifications {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-6);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
}

.cert-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-4);
    text-align: center;
    color: var(--text-primary);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-4);
}

.cert-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.cert-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cert-badge {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-100), var(--secondary-100));
    border-radius: var(--radius-lg);
}

[data-theme="dark"] .cert-badge {
    background: linear-gradient(135deg, var(--primary-900), var(--secondary-900));
}

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

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

/* Projects Section - UPDATED FOR NEW BUTTON LAYOUT */
.projects-section {
    padding: var(--spacing-12) 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-4);
}

.project-card {
    background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-500), var(--accent-500));
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    position: relative;
    overflow: hidden;
    height: 120px;
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

/* Removed overlay styles as button is now in content */

.project-content {
    padding: var(--spacing-4);
}

.project-category {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background-color: var(--primary-100);
    color: var(--primary-700);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
    margin-bottom: var(--spacing-2);
}

[data-theme="dark"] .project-category {
    background-color: var(--primary-900);
    color: var(--primary-200);
}

.project-title {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-2);
    line-height: 1.3;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3);
    line-height: 1.5;
    font-size: 0.875rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Updated button styles for new position */
.view-project-btn {
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    color: white;
    border: none;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    margin-bottom: var(--spacing-3);
    box-shadow: var(--shadow-sm);
}

.view-project-btn:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: var(--spacing-3);
    justify-content: center; /* Center the tags */
}

.tag {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.project-stats {
    display: flex;
    justify-content: space-around;
    padding-top: var(--spacing-2);
    border-top: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-500);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--bg-secondary);
    margin: 2% auto;
    padding: 0;
    border-radius: var(--radius-2xl);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    position: relative;
    animation: modalSlideIn 0.3s ease-out;
}

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

.close {
    color: var(--text-tertiary);
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 1;
    background: rgba(255, 255, 255, 0.9);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.close:hover {
    color: var(--error-500);
    background: white;
    transform: scale(1.1);
}

.modal-content h2 {
    padding: var(--spacing-6) var(--spacing-6) var(--spacing-4);
    margin: 0;
    font-size: 1.8rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-image {
    width: 100%;
    height: 300px;
    object-fit: contain;
}

.modal-body {
    padding: var(--spacing-6);
}

.modal-body h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-3);
    color: var(--primary-600);
}

.modal-body p {
    margin-bottom: var(--spacing-4);
    line-height: 1.6;
    color: var(--text-secondary);
}

.modal-body ul {
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-4);
}

.modal-body li {
    margin-bottom: var(--spacing-2);
    color: var(--text-secondary);
    line-height: 1.6;
}

.project-details {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-4);
}

.detail-item {
    margin-bottom: var(--spacing-2);
    color: var(--text-secondary);
}

.detail-item:last-child {
    margin-bottom: 0;
}

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

/* Contact Section */
.contact-section {
    padding: var(--spacing-12) 0;
    background-color: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
    align-items: start;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-4);
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

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

.contact-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.contact-value {
    font-weight: 600;
    color: var(--text-primary);
}

.contact-form {
    background-color: var(--bg-primary);
    padding: var(--spacing-6);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-3);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-family: inherit;
    font-size: 1rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

/* Footer */
.footer {
    background-color: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-6) 0;
}

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

.footer-text p {
    color: var(--text-tertiary);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-4);
}

.footer-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-500);
}

/* Animations */
@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

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

[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-in-out, transform 0.6s ease-in-out;
}

[data-aos="fade-up"].animate {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1023px) {
    .hero-container, .welcome-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title, .welcome-title {
        font-size: 2.5rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content, .about-content {
        grid-template-columns: 1fr;
    }
    
    .welcome-stats {
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .hero-title, .welcome-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-menu {
        gap: var(--spacing-2);
    }
    
    .nav-link {
        font-size: 0.875rem;
    }
    
    .hero-actions, .welcome-actions, .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 200px;
    }
    
    .software-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .project-stats {
        flex-direction: column;
        gap: var(--spacing-2);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid, .services-grid {
        grid-template-columns: 1fr;
    }
    
    .welcome-stats {
        flex-direction: column;
        gap: var(--spacing-2);
    }
    
    .modal-content {
        width: 95%;
        margin: 5% auto;
    }
    
    .close {
        top: 15px;
        right: 20px;
        font-size: 1.5rem;
        width: 35px;
        height: 35px;
    }
}

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

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}