/* Modern Minimal Design Variables */
:root {
    --color-black: #000;
    --color-white: #fff;
    --color-gray-900: #1a1a1a;
    --color-gray-800: #333;
    --color-gray-600: #666;
    --color-gray-400: #999;
    --color-gray-200: #e5e5e5;
    --color-gray-100: #f5f5f5;
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.6s ease;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.8;
    color: var(--color-black);
    background-color: var(--color-white);
    overflow-x: hidden;
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--color-black);
    line-height: 1.3;
    font-weight: bold;
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: bold;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
    font-weight: bold;
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    margin-bottom: var(--spacing-sm);
    font-weight: bold;
}

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    color: var(--color-gray-800);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: clamp(4rem, 10vw, 8rem) 0;
}

/* Buttons - Squared Design */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-weight: 500;
    font-size: 0.9375rem;
    border: 2px solid var(--color-black);
    border-radius: 0;
    transition: var(--transition-base);
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: var(--color-gray-900);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.section-header .overline {
    display: block;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-600);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.0625rem;
    color: var(--color-gray-600);
}

/* Fade-in Animation */
.fade-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: var(--transition-base);
}

header.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo span {
    font-weight: 300;
}

nav ul {
    display: flex;
    gap: var(--spacing-lg);
}

nav ul li a {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    transition: var(--transition-fast);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-black);
    transition: var(--transition-fast);
}

nav ul li a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
}

.nav-toggle-label {
    display: none;
}

/* Hero Section */
.hero {
    padding: 10rem 0 6rem;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-content h1 {
    margin-bottom: var(--spacing-lg);
    line-height: 1.15;
}

.hero-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    color: var(--color-gray-600);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
}

/* Services Section */
.services {
    background: var(--color-gray-100);
}

.services-layout {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

.services-grid {
    order: 1;
    flex: 1;
}

.services-header {
    order: 2;
    flex: 0 0 300px;
}

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

.service-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    min-height: 280px;
    display: flex;
    flex-direction: column;
    transition: var(--transition-base);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-black);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    min-height: 40px;
}

.service-card p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 0;
    flex-grow: 1;
}

/* Process Section */
.process {
    background: var(--color-white);
}

.process-layout {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

.process-header {
    order: 1;
    flex: 0 0 300px;
}

.process-steps {
    order: 2;
    flex: 1;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.process-step {
    padding: var(--spacing-xl);
    text-align: center;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    transition: var(--transition-base);
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--color-black);
}

.step-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gray-200);
    margin-bottom: var(--spacing-sm);
    font-family: 'Times New Roman', serif;
}

.process-step h3 {
    margin-bottom: var(--spacing-sm);
    min-height: 35px;
}

.process-step p {
    font-size: 0.9375rem;
    margin-bottom: 0;
    flex-grow: 1;
}

/* About Section - Services-Inspired Flexbox Layout */
.about {
    background: var(--color-gray-100);
}

.about .container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.about-layout {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

.team {
    order: 1;
    flex: 0 0 30%;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.about-content {
    order: 2;
    flex: 0 0 70%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.about-intro {
    text-align: left;
}

.about-intro .section-header {
    margin-bottom: var(--spacing-md);
}

.about-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-800);
    margin-bottom: 0;
    font-weight: 500;
}

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

.about-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-gray-800);
    margin-bottom: 0;
}

/* Team Grid - Vertical Layout for Right Column */
.team {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.team-member {
    text-align: center;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.team-member:last-child {
    grid-column: auto;
    max-width: none;
    margin: 0 auto;
}

.member-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-sm);
    overflow: hidden;
    border: 3px solid transparent;
}

.member-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
}

.team-member h4 {
    margin-bottom: 0.25rem;
}

.team-member p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Work Section */
.work {
    background: var(--color-white);
}

.work-layout {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

.work-header {
    order: 1;
    flex: 0 0 300px;
}

.work-projects {
    order: 2;
    flex: 1;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
    background: var(--color-white);
    transition: var(--transition-base);
    min-height: 420px;
    perspective: 1000px;
}

.portfolio-item:hover {
    border-color: var(--color-black);
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.portfolio-card {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.portfolio-item:hover .portfolio-card {
    transform: rotateY(180deg);
}

.card-front,
.card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
}

.card-front {
    background: var(--color-white);
}

.card-front img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: var(--transition-base);
}

.card-front img[alt="Tech Startup Platform"] {
    object-position: 0 50% !important;
    width: 368px;
    height: 418px;
}

.card-title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: var(--color-white);
    color: var(--color-black);
    backdrop-filter: blur(10px);
}

.card-title h4 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.card-back {
    background: var(--color-black);
    color: var(--color-white);
    transform: rotateY(180deg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.card-content {
    text-align: center;
    max-width: 100%;
}

.card-content h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
    font-weight: 600;
}

.card-content p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    opacity: 0.9;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    justify-content: center;
}

.tech-stack span {
    padding: 0.25rem var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Testimonials Section */
.testimonials {
    background: var(--color-gray-100);
}

.testimonials-layout {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

.testimonials-header {
    order: 1;
    flex: 0 0 300px;
}

.testimonials-content {
    order: 2;
    flex: 1;
}

.testimonial-slider {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.testimonial {
    padding: var(--spacing-xl);
    background: var(--color-white);
    display: flex;
    flex-direction: column;
    max-width: 600px;
    margin: 0 auto;
    min-height: 300px;
    border: 1px solid var(--color-gray-200);
    transition: var(--transition-base);
}

.testimonial:hover {
    border-color: var(--color-black);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.quote {
    font-size: 1rem;
    font-style: italic;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.client {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.client-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.client-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
}

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

.client-info p {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Contact Section */
.contact {
    background: var(--color-white);
}

.contact .container {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: var(--spacing-2xl);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-group:nth-child(3),
.form-group:nth-child(4) {
    grid-column: 1 / -1;
}

.form-group label {
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--color-gray-200);
    background-color: var(--color-white);
    font-size: 1rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    transition: var(--transition-fast);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #e53e3e;
}

.form-group .error-message {
    display: none;
    color: #e53e3e;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-group .required {
    color: #e53e3e;
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-black);
}

.contact-form button {
    grid-column: 1 / -1;
    margin-top: var(--spacing-sm);
}

.success-message {
    grid-column: 1 / -1;
    padding: var(--spacing-sm);
    background: #e8f5e8;
    border: 1px solid #4caf50;
    border-radius: 4px;
    color: var(--color-gray-800);
    margin-top: var(--spacing-sm);
}

/* Contact Info Block - Modern Design */
.contact-info {
    padding: var(--spacing-xl);
    background: var(--color-gray-100);
}

.contact-info h3 {
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
}

.info-group {
    margin-bottom: var(--spacing-xl);
}

.info-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: baseline;
}

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

.info-item i {
    font-size: 1.25rem;
    color: var(--color-black);
    width: 24px;
    flex-shrink: 0;
}

.info-item strong {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center !important;
}

.info-item div {
    text-align: center !important;
}

/* Modern Social Links */
.social-section {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

.social-section strong {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.social-links a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    color: var(--color-black);
    font-size: 1.125rem;
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
}

.link-group {
    flex: none;
}

.footer-logo h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.footer-logo span {
    font-weight: 300;
}

.footer-logo p {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.link-group h4 {
    color: var(--color-white);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.link-group ul li {
    margin-bottom: var(--spacing-xs);
}

.link-group ul li a {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

.link-group ul li a:hover {
    color: var(--color-white);
}

/* Contact links in footer */
.link-group ul li a[href^="mailto:"],
.link-group ul li a[href^="tel:"] {
    color: var(--color-gray-300);
    text-decoration: none;
}

.link-group ul li a[href^="mailto:"]:hover,
.link-group ul li a[href^="tel:"]:hover {
    color: var(--color-white);
    text-decoration: underline;
}

.copyright {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-800);
    text-align: center;
}

.copyright p {
    color: var(--color-gray-400);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.copyright span {
    font-weight: 300;
}

/* ===================
   RESPONSIVE DESIGN - MOBILE-FIRST
   =================== */

/* Mobile-first base styles (320px and up) */
html {
    font-size: 14px; /* Smaller base font for mobile */
}

body {
    font-size: 1rem;
}

/* Mobile navigation - hamburger visible by default */
.nav-toggle-label {
    display: block;
    cursor: pointer;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
    display: block;
    background: var(--color-black);
    height: 2px;
    width: 1.5rem;
    border-radius: 2px;
    position: relative;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
    content: '';
    position: absolute;
}

.nav-toggle-label span::before {
    bottom: 7px;
}

.nav-toggle-label span::after {
    top: 7px;
}

nav ul {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.3s ease;
    gap: 0;
}

nav ul li {
    margin: 0.75rem 0;
}

/* Mobile hero adjustments */
.hero {
    padding: 8rem 0 6rem;
}

.hero .container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.hero-content {
    text-align: center;
}

.hero-content h1 {
    text-align: center;
}

.hero-description {
    text-align: center;
}

.hero-buttons {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Mobile layout adjustments */
.about-layout {
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Show mobile nav when nav-toggle checkbox is checked */
.nav-toggle {
    position: absolute;
    left: -9999px;
}

.nav-toggle:checked + .nav-toggle-label + ul {
    transform: scaleY(1);
}

.team {
    order: 1;
    flex: none;
    grid-template-columns: 1fr;
}

.about-content {
    order: 2;
    flex: none;
}

.about-intro {
    text-align: center;
}

.about-details {
    text-align: center;
}

.services-layout {
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.services-header {
    order: 1;
    flex: none;
}

.services-grid {
    order: 2;
    flex: none;
    grid-template-columns: 1fr;
}

.service-card {
    text-align: center;
}

.process-layout {
    flex-direction: column;
}

.process-header {
    order: 1;
    flex: none;
}

.process-steps {
    order: 2;
    flex: none;
    grid-template-columns: 1fr;
}

.process-step {
    text-align: center;
}

.work-layout {
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.work-header {
    order: 1;
    flex: none;
}

.work-projects {
    order: 2;
    margin-left: 0;
    flex: none;
}

.portfolio-item {
    text-align: center;
    perspective: none;
}

.portfolio-item:hover .portfolio-card {
    transform: none;
}

.card-front {
    position: static;
}

.card-back {
    display: none;
}

.testimonials-layout {
    flex-direction: column;
}

.testimonials-header {
    order: 1;
    flex: none;
}

.testimonials-content {
    order: 2;
    flex: none;
}

.testimonial {
    text-align: center;
}

.testimonial-slider {
    grid-template-columns: 1fr;
}

.contact .container {
    grid-template-columns: 1fr;
}

.contact-form {
    grid-template-columns: 1fr;
}

.contact-info {
    text-align: center;
}

/* Mobile footer adjustments */
.link-group {
    text-align: center;
}

.footer-logo p {
    text-align: center;
}

.footer-logo h3 {
    text-align: center;
}

/* Mobile footer layout - stack columns vertically on small screens */
@media (max-width: 767px) {
    .footer-content {
        grid-template-columns: 1fr;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .footer-logo {
        grid-column: auto;
    }
}

/* Mobile container adjustments - ensure content fits viewport */
.container {
    max-width: 100%;
    padding: 0 var(--spacing-sm);
    margin: 0 auto;
}

.btn {
    padding: 0.75rem var(--spacing-lg);
    font-size: 0.875rem;
}

.social-links a {
    width: 44px;
    height: 44px;
    font-size: 1rem;
}

/* Mobile form input optimization - prevent iOS zoom */
@media (max-width: 767px) {
    .form-group input,
    .form-group textarea {
        font-size: 16px;
    }
}

/* Extra small screen optimization - ensure readability */
@media (max-width: 360px) {
    h1 {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }
    
    h2 {
        font-size: clamp(1.5rem, 4vw, 2rem);
    }
    
    h3 {
        font-size: clamp(1.125rem, 3vw, 1.25rem);
    }
}

/* Mobile accessibility improvements */
@media (max-width: 767px) {
    /* Better focus indicators for touch devices */
    .btn:focus,
    .social-links a:focus,
    nav ul li a:focus {
        outline: 2px solid var(--color-black);
        outline-offset: 2px;
    }
    
    /* Ensure minimum touch target spacing */
    .hero-buttons {
        gap: var(--spacing-md);
    }

    /* Mobile portfolio cards - show information permanently */
    .portfolio-item {
        min-height: auto;
        margin-bottom: var(--spacing-lg);
    }

    .portfolio-item .card-front {
        position: static;
        height: auto;
        min-height: 250px;
    }

    .portfolio-item .card-front img {
        width: 100%;
        height: 250px;
        object-fit: cover;
        filter: grayscale(100%);
    }

    .portfolio-item .card-title {
        position: static;
        padding: var(--spacing-md);
        background: var(--color-white);
        color: var(--color-black);
        border-top: 1px solid var(--color-gray-200);
    }

    .portfolio-item .card-title h4 {
        margin: 0;
        font-size: 1.125rem;
        font-weight: 600;
    }

    .portfolio-item .card-back {
        display: block !important;
        position: static;
        background: var(--color-gray-50);
        color: var(--color-black);
        transform: none;
        padding: var(--spacing-lg);
        border-top: 1px solid var(--color-gray-200);
        border-bottom: 1px solid var(--color-gray-200);
        border-left: 1px solid var(--color-gray-200);
        border-right: 1px solid var(--color-gray-200);
    }

    .portfolio-item .card-content {
        text-align: center;
        max-width: 100%;
    }

    .portfolio-item .card-content h4 {
        margin-bottom: var(--spacing-md);
        font-size: 1.125rem;
        font-weight: 600;
        color: var(--color-black);
    }

    .portfolio-item .card-content p {
        margin-bottom: var(--spacing-lg);
        line-height: 1.6;
        color: var(--color-gray-800);
        font-size: 0.9375rem;
    }

    .portfolio-item .tech-stack {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        justify-content: center;
    }

    .portfolio-item .tech-stack span {
        padding: 0.25rem var(--spacing-sm);
        background: var(--color-gray-200);
        color: var(--color-black);
        border-radius: 20px;
        font-size: 0.75rem;
        font-weight: 500;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
}

/* Tablet styles (768px and up) */
@media (min-width: 768px) {
    html {
        font-size: 15px;
    }

    body {
        font-size: 1rem;
    }

    /* Hide mobile navigation, show desktop nav */
    .nav-toggle-label {
        display: none;
    }

    nav ul {
        position: static;
        background: none;
        flex-direction: row;
        padding: 0;
        box-shadow: none;
        transform: none;
        gap: var(--spacing-lg);
    }

    nav ul li {
        margin: 0;
    }

    /* Tablet hero */
    .hero {
        padding: 10rem 0 6rem;
    }

    .hero .container {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-2xl);
    }

    .hero-buttons {
        flex-direction: row;
        flex-wrap: wrap;
    }

    /* Tablet layouts */
    .about-layout {
        flex-direction: row;
        gap: var(--spacing-2xl);
    }

    .team {
        order: 1;
        flex: 0 0 30%;
        grid-template-columns: 1fr;
    }

    .about-content {
        order: 2;
        flex: 0 0 70%;
    }

    .services-layout {
        flex-direction: row;
        gap: var(--spacing-2xl);
    }

    .services-header {
        order: 2;
        flex: 0 0 300px;
    }

    .services-grid {
        order: 1;
        flex: 1;
        grid-template-columns: repeat(2, 1fr);
    }

    .process-layout {
        flex-direction: row;
        gap: var(--spacing-2xl);
    }

    .process-header {
        order: 1;
        flex: 0 0 300px;
    }

    .process-steps {
        order: 2;
        flex: 1;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    }

    .work-layout {
        flex-direction: row;
        gap: var(--spacing-2xl);
    }

    .work-header {
        order: 1;
        flex: 0 0 300px;
    }

    .work-projects {
        order: 2;
        flex: 1;
    }

    .testimonials-layout {
        flex-direction: row;
        gap: var(--spacing-2xl);
    }

    .testimonials-header {
        order: 1;
        flex: 0 0 300px;
    }

    .testimonials-content {
        order: 2;
        flex: 1;
    }

    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .contact .container {
        grid-template-columns: 3fr 2fr;
        gap: var(--spacing-2xl);
    }

    .contact-form {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }

    /* Tablet footer */
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
        gap: var(--spacing-2xl);
    }

    .link-group {
        flex: none;
    }

    .footer-logo {
        grid-column: auto;
    }
    section {
        padding: clamp(4rem, 10vw, 8rem) 0;
    }

    .container {
        padding: 0 1.5rem;
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-xl);
        font-size: 0.9375rem;
    }

    .social-links a {
        width: 44px;
        height: 44px;
        font-size: 1.125rem;
    }
}

/* Desktop styles (1024px and up) */
@media (min-width: 1024px) {
    html {
        font-size: 16px;
    }

    /* Desktop navigation fully visible */
    nav ul {
        display: flex;
        gap: var(--spacing-lg);
    }

    /* Desktop footer */
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
        gap: var(--spacing-2xl);
    }

    .link-group {
        flex: none;
    }

    .footer-logo {
        grid-column: auto;
    }
}

/* Large desktop (1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}