/* styles*/

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

:root {
    /* Dark Blue Theme Colors */
    --primary-color: #1e3a8a;           /* Deep blue */
    --secondary-color: #3b82f6;         /* Bright blue */
    --accent-color: #60a5fa;            /* Light blue */
    --dark-bg: #0f172a;                 /* Very dark blue */
    --darker-bg: #020617;               /* Almost black blue */
    --card-bg: #1e293b;                 /* Dark blue-gray */
    --text-light: #f8fafc;              /* Light text */
    --text-gray: #cbd5e1;               /* Gray text */
    --text-muted: #94a3b8;              /* Muted text */
    --border-color: #334155;            /* Border color */
    --hover-bg: #475569;                /* Hover background */
    --success-color: #10b981;           /* Success green */
    --warning-color: #f59e0b;           /* Warning amber */
    --error-color: #ef4444;             /* Error red */
    
    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 100px 0;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

/* typography*/

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-light);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h5 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.25rem); }

p {
    margin-bottom: 1rem;
    color: var(--text-gray);
}

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

a:hover {
    color: var(--secondary-color);
}




.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.highlight {
    color: var(--accent-color);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    border-radius: 2px;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
}

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

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.page-title {
    margin-bottom: 1rem;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 1.2rem;
}

/*    BUTTONS
*/

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    font-size: 1rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

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

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

.btn-secondary:hover {
    background: var(--accent-color);
    color: var(--dark-bg);
    transform: translateY(-2px);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Header with navigation*/

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 1rem 0;
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-gray);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    transition: var(--transition);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    transition: var(--transition);
    border-radius: 3px;
}

/* hero section= */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.1) 0%, transparent 50%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-sm);
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-gray);
    line-height: 1.7;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-img {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--secondary-color);
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
}

.profile-img:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.3);
}

/* section*/

.services,
.featured-work,
.skills-section,
.background-section,
.philosophy-section,
.portfolio-section,
.educational-video,
.contact-section,
.faq-section {
    padding: var(--section-padding);
}

.services {
    background: var(--card-bg);
}

.services-grid,
.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--dark-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(96, 165, 250, 0.05));
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover::before {
    opacity: 1;
}

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

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
}

.service-icon img {
    width: 50px;
    height: 50px;
    filter: brightness(0) invert(1);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.service-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* featured */

.work-item {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    transition: var(--transition);
}

.work-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.work-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.9), rgba(59, 130, 246, 0.9));
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition);
}

.work-item:hover .work-overlay {
    opacity: 1;
}

.work-item:hover img {
    transform: scale(1.1);
}

.work-overlay h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.work-overlay p {
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.work-link {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.work-link:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
}

.work-cta {
    text-align: center;
    margin-top: 3rem;
}

/* page header */

.page-header {
    padding: 140px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, var(--darker-bg), var(--dark-bg));
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}

/*about*/

.about-hero {
    padding: 80px 0;
    background: var(--card-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: center;
}

.about-img {
    width: 100%;
    max-width: 400px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
}

.about-img:hover {
    transform: scale(1.02);
}

.about-text h2 {
    margin-bottom: 0.5rem;
}

.about-text h3 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.about-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat h4 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

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

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

.skill-name {
    min-width: 120px;
    font-weight: 500;
}

.skill-bar {
    flex: 1;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    border-radius: 4px;
    transition: width 2s ease-in-out;
}

.skill-percentage {
    min-width: 40px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.specialty-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.tag {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Background Section */
.background-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--secondary-color), var(--accent-color));
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--secondary-color);
    border-radius: 50%;
    transform: translateX(-5px);
    box-shadow: 0 0 0 4px var(--dark-bg);
}

.timeline-date {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.timeline-content ul {
    color: var(--text-gray);
    padding-left: 1rem;
}

/* Philosophy Section */
.philosophy-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.philosophy-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--secondary-color);
    transition: var(--transition);
}

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

.philosophy-item h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

/* =============================================
   PORTFOLIO PAGE STYLES
   ============================================= */
.portfolio-page-header {
    background: url('../images/slice-2.jpg') center center/cover no-repeat;
    position: relative;
    min-height: 350px;
    padding: 140px 0 80px;
    text-align: center;
    color: var(--text-light);
    z-index: 1;
}

.portfolio-page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(58, 67, 88, 0.7); /* dark overlay for readability */
    z-index: 2;
}

.portfolio-page-header > * {
    position: relative;
    z-index: 3;
}
.portfolio-filter {
    padding: 2rem 0;
    text-align: center;
    background: var(--card-bg);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.filter-btn {
    background: transparent;
    color: var(--text-gray);
    border: 2px solid var(--border-color);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: var(--secondary-color);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.portfolio-item {
    transition: var(--transition);
}

.portfolio-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.view-project-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.view-project-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Educational Video Section */
.educational-video {
    background: var(--card-bg);
}

.video-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-top: 3rem;
}

.video-wrapper {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-info h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

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

.modal-content {
    position: relative;
    margin: 2% auto;
    width: 90%;
    max-width: 1200px;
    background: var(--dark-bg);
    border-radius: var(--border-radius-lg);
    max-height: 90vh;
    overflow-y: auto;
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    z-index: 2001;
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--secondary-color);
}

.project-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
}

.project-images img {
    width: 100%;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.thumbnail-gallery {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.thumbnail-gallery img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.thumbnail-gallery img:hover {
    border-color: var(--secondary-color);
}

.project-meta {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
}

.project-meta p {
    margin-bottom: 0.5rem;
}

/* =============================================
   CONTACT PAGE STYLES
   ============================================= */

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-form-container h2 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.contact-form {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    margin-top: 2rem;
}

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

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--dark-bg);
    color: var(--text-light);
    font-family: inherit;
    transition: var(--transition);
    resize: vertical;
}

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

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    margin-top: 1rem;
}

.form-success {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    margin-top: 2rem;
}

.contact-info h2 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.contact-methods {
    margin: 2rem 0;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

.contact-icon {
    color: var(--secondary-color);
    padding: 10px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-details h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-details p {
    margin-bottom: 0.25rem;
    color: var(--text-light);
}

.contact-details small {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.social-contact {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    margin-top: 2rem;
}

.social-contact h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    display: inline-block;
    padding: 10px 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.social-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 3rem auto 0;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--secondary-color);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(59, 130, 246, 0.05);
}

.faq-question h3 {
    margin: 0;
    font-size: 1.1rem;
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    font-weight: bold;
    transition: var(--transition);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    transition: max-height 0.5s ease-in;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    margin: 0;
    color: var(--text-gray);
    line-height: 1.6;
}

/* =============================================
   CTA SECTION
   ============================================= */

.cta {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    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="%23ffffff" fill-opacity="0.05"><polygon points="36,34 6,34 6,6 36,6"/></g></g></svg>') repeat;
    opacity: 0.1;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta .btn-primary {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.cta .btn-primary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

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

.footer {
    background: var(--darker-bg);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-info h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.footer-info p {
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links h4,
.footer-social h4 {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-gray);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-social .social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-social .social-links a {
    color: var(--text-gray);
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 0.9rem;
}

.footer-social .social-links a:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

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

/* =============================================
   ANIMATIONS & LOADING STATES
   ============================================= */

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

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

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

.btn-loading {
    animation: pulse 1.5s infinite;
}

/* Scroll animations */
.fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

.slide-in {
    animation: slideInRight 0.8s ease-out forwards;
}

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

/* Large tablets and small desktops */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .profile-img {
        width: 280px;
        height: 280px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .background-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .video-container {
        grid-template-columns: 1fr;
    }
    
    .project-details {
        grid-template-columns: 1fr;
    }
}

/* Tablets */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .container {
        padding: 0 15px;
    }
    
    /* Navigation */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 1rem 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    /* Hero section */
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .profile-img {
        width: 250px;
        height: 250px;
    }
    
    /* Sections */
    .services-grid,
    .work-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        justify-content: center;
        gap: 1.5rem;
    }
    
    .philosophy-content {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-buttons {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    /* Forms */
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-methods {
        gap: 1rem;
    }
    
    .social-links {
        justify-content: center;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-social .social-links {
        justify-content: center;
    }
}

/* Mobile phones */
@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .profile-img {
        width: 200px;
        height: 200px;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .modal-content {
        width: 95%;
        margin: 5% auto;
    }
    
    .close-btn {
        top: 10px;
        right: 15px;
        font-size: 1.5rem;
    }
    
    .faq-question {
        padding: 1rem;
    }
    
    .video-wrapper {
        border-radius: var(--border-radius);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

/* Very small screens */
@media (max-width: 320px) {
    .container {
        padding: 0 10px;
    }
    
    .profile-img {
        width: 180px;
        height: 180px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .service-card {
        padding: 1rem;
    }
}

/* =============================================
   PRINT STYLES
   ============================================= */

@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
    
    .header,
    .nav-toggle,
    .cta,
    .footer,
    .btn,
    .modal {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3, h4, h5, h6 {
        color: black !important;
        page-break-after: avoid;
    }
    
    .page-header {
        padding: 20px 0;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}

/* =============================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================= */

/* Focus styles */
*:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--secondary-color);
    color: white;
    padding: 8px;
    z-index: 1001;
    text-decoration: none;
    border-radius: 4px;
}

.skip-link:focus {
    top: 6px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --secondary-color: #0066cc;
        --accent-color: #4da6ff;
        --text-light: #ffffff;
        --text-gray: #e6e6e6;
        --border-color: #666666;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* =============================================
   UTILITIES
   ============================================= */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }

.hidden { display: none; }
.visible { display: block; }

/* Loading spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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