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

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    overflow-x: hidden;
    background: #ffffff;
}

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

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

ul {
    list-style: none;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
    border-radius: 4px;
}

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

/* CSS Variables - Modern Business Theme */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #00d2ff;
    --danger-color: #ff6b6b;
    --warning-color: #ffeaa7;
    --light-color: #f8fafc;
    --dark-color: #2d3748;
    --text-color: #1a1a1a;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --shadow-hover: 0 8px 30px rgba(102, 126, 234, 0.2);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --section-padding: 5rem 0;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.section__title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text-color);
    position: relative;
    font-weight: 800;
}

.section__title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 1.5rem auto;
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    min-height: 48px;
    white-space: nowrap;
}

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

.btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn--primary::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: left 0.5s;
}

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

.btn--secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn--full {
    width: 100%;
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.nav__container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav__logo-text {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav__menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav__link {
    font-weight: 500;
    color: var(--text-color);
    padding: 0.75rem 0;
    position: relative;
    transition: var(--transition);
}

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    justify-content: center;
    align-items: center;
}

.nav__hamburger {
    width: 28px;
    height: 3px;
    background: var(--primary-color);
    position: relative;
    transition: var(--transition);
    border-radius: 2px;
}

.nav__hamburger::before,
.nav__hamburger::after {
    content: '';
    position: absolute;
    width: 28px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

.nav__hamburger::before {
    top: -8px;
}

.nav__hamburger::after {
    bottom: -8px;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding: 6rem 1.5rem 3rem;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23667eea" opacity="0.1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23dots)"/></svg>');
    pointer-events: none;
}

.hero__content {
    flex: 1;
    max-width: 600px;
    margin-right: 3rem;
    z-index: 2;
    position: relative;
}

.hero__title {
    font-size: clamp(3rem, 6vw, 4.5rem);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out;
    line-height: 1.1;
}

.hero__subtitle {
    font-size: clamp(1.25rem, 3vw, 2rem);
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-weight: 600;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero__description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero__actions {
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero__image {
    flex: 1;
    max-width: 600px;
    animation: fadeInRight 1s ease-out 0.8s both;
}

.hero__image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background: white;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.service:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service__icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.service__icon-text {
    font-size: 2rem;
    filter: brightness(0) invert(1);
}

.service__title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.service__description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service__features {
    list-style: none;
    padding: 0;
}

.service__features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.service__features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* About Section */
.about {
    padding: var(--section-padding);
    background: var(--light-color);
}

.about__content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about__intro {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.about__features {
    display: grid;
    gap: 2rem;
}

.feature {
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.feature:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.feature__title {
    color: var(--text-color);
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

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

.about__stats {
    display: grid;
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.stat:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.stat__number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.stat__label {
    font-size: 0.875rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* Portfolio Section */
.portfolio {
    padding: var(--section-padding);
    background: white;
}

.portfolio__filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.875rem 1.75rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.filter-btn:hover,
.filter-btn--active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.portfolio__item {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.portfolio__item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.portfolio__image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.portfolio__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio__item:hover .portfolio__image img {
    transform: scale(1.1);
}

.portfolio__content {
    padding: 2rem;
}

.portfolio__title {
    color: var(--text-color);
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.portfolio__description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

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

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--light-color);
    color: var(--primary-color);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.portfolio__item.hidden {
    display: none;
}

/* Testimonials Section */
.testimonials {
    padding: var(--section-padding);
    background: var(--light-color);
}

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

.testimonial {
    display: none;
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    text-align: center;
    position: relative;
}

.testimonial--active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

.testimonial__quote {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 2rem;
    font-style: italic;
    position: relative;
}

.testimonial__quote::before {
    content: '"';
    font-size: 4rem;
    color: var(--primary-color);
    position: absolute;
    top: -1rem;
    left: -1rem;
    opacity: 0.3;
}

.testimonial__author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.testimonial__avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.testimonial__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial__info {
    text-align: left;
}

.testimonial__name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.testimonial__title {
    color: var(--text-light);
    font-size: 0.875rem;
}

.testimonials__controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.testimonial__btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: white;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.testimonial__btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: scale(1.1);
}

.testimonials__dots {
    display: flex;
    gap: 0.5rem;
}

.testimonial__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.testimonial__dot--active,
.testimonial__dot:hover {
    background: var(--primary-color);
    transform: scale(1.2);
}

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

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact__info {
    display: grid;
    gap: 2rem;
}

.contact__item {
    padding: 2rem;
    background: var(--light-color);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.contact__item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.contact__title {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.contact__description,
.contact__details {
    color: var(--text-light);
    line-height: 1.6;
}

.contact__details a {
    color: var(--primary-color);
    transition: var(--transition);
    font-weight: 600;
}

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

/* Form Styles */
.contact__form {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-color);
}

.form__input,
.form__textarea,
.form__select {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: white;
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

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

.form__error {
    display: block;
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    min-height: 1.2rem;
}

.form__input.error,
.form__textarea.error {
    border-color: var(--danger-color);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 4rem 0 1.5rem;
}

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

.footer__title {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.footer__description {
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.footer__links {
    display: grid;
    gap: 0.75rem;
}

.footer__links a {
    color: #94a3b8;
    transition: var(--transition);
    font-weight: 500;
}

.footer__links a:hover {
    color: white;
    transform: translateX(4px);
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social__link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.social__icon {
    font-size: 1.25rem;
}

.footer__newsletter {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.newsletter__input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 0.875rem;
}

.newsletter__input::placeholder {
    color: #94a3b8;
}

.newsletter__input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.newsletter__btn {
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

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

.footer__newsletter-text {
    color: #94a3b8;
    font-size: 0.875rem;
    line-height: 1.5;
}

.footer__bottom {
    border-top: 1px solid #475569;
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
}

.footer__link {
    color: #94a3b8;
    transition: var(--transition);
    font-weight: 500;
}

.footer__link:hover {
    color: white;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.back-to-top__icon {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem 1.5rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        gap: 0;
    }

    .nav__menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav__item {
        width: 100%;
        text-align: center;
        padding: 1.25rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav__item:last-child {
        border-bottom: none;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__toggle.active .nav__hamburger {
        transform: rotate(45deg);
    }

    .nav__toggle.active .nav__hamburger::before {
        transform: rotate(90deg);
        top: 0;
    }

    .nav__toggle.active .nav__hamburger::after {
        transform: rotate(90deg);
        bottom: 0;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 7rem 1.5rem 3rem;
    }

    .hero__content {
        margin-right: 0;
        margin-bottom: 3rem;
        max-width: none;
    }

    .hero__actions {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .section__title {
        font-size: 2.5rem;
    }

    .about__content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .services__grid {
        grid-template-columns: 1fr;
    }

    .portfolio__grid {
        grid-template-columns: 1fr;
    }

    .contact__content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .form__row {
        grid-template-columns: 1fr;
    }

    .portfolio__filters {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 0.5rem;
    }

    .filter-btn {
        white-space: nowrap;
        flex-shrink: 0;
    }

    .testimonial__author {
        flex-direction: column;
        text-align: center;
    }

    .testimonial__info {
        text-align: center;
    }

    .footer__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__newsletter {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero__actions {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .services__grid {
        grid-template-columns: 1fr;
    }

    .portfolio__grid {
        grid-template-columns: 1fr;
    }

    .about__stats {
        grid-template-columns: 1fr;
    }

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 48px;
        height: 48px;
    }

    .testimonial {
        padding: 2rem;
    }

    .service {
        padding: 2rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000;
        --secondary-color: #333;
        --text-color: #000;
        --border-color: #000;
    }
}

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

/* Print styles */
@media print {
    .nav, .back-to-top, .hero__actions, .testimonials__controls {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .section__title {
        font-size: 18pt;
        margin-bottom: 1rem;
    }
}

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles can be added here */
}