/* 
 * OSTEN Engineering Consultation Website
 * Main CSS Stylesheet
 * 
 * This file contains the main styling for the OSTEN engineering consultation website
 */

/* ===== GLOBAL STYLES ===== */
:root {
    /* Color Variables */
    --primary-color: #1a3c6e;    /* Deep Blue */
    --secondary-color: #e67e22;  /* Orange */
    --accent-color: #2ecc71;     /* Green */
    --light-bg: #f5f5f5;         /* Light Gray */
    --dark-text: #333333;        /* Dark Gray */
    --white: #ffffff;            /* White */
    --light-text: #777777;       /* Light Text */
    --dark-bg: #222222;          /* Dark Background */
    --border-color: #dddddd;     /* Border Color */
    --overlay-color: rgba(0, 0, 0, 0.6); /* Dark Overlay */
    --success-color: #27ae60;    /* Success Green */
    --error-color: #e74c3c;      /* Error Red */
    --warning-color: #f39c12;    /* Warning Orange */
    
    /* Typography */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Open Sans', sans-serif;
    --arabic-font: 'Cairo', sans-serif;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 15px;
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
    
    /* Shadows */
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 5px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--primary-color);
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 20px;
}

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

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

ul, ol {
    list-style: none;
    margin: 0;
    padding: 0;
}

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

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

.section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    position: relative;
    display: inline-block;
    margin-bottom: 15px;
    padding-bottom: 15px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
}

.section-header p {
    color: var(--light-text);
    font-size: 1.1rem;
}

.bg-light {
    background-color: var(--light-bg);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-fast);
    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: left 0.5s;
}

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

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

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

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

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

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

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

/* Enhanced Button States */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn-loading {
    display: none;
}

.btn.loading .btn-text {
    display: none;
}

.btn.loading .btn-loading {
    display: inline-block;
}

/* ===== HEADER STYLES ===== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition-fast);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
}

.main-nav {
    display: flex;
}

.nav-menu {
    display: flex;
}

.nav-menu li {
    margin: 0 15px;
}

.nav-menu li a {
    font-weight: 600;
    padding: 10px 0;
    position: relative;
}

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

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
}

.language-switcher {
    margin-right: 20px;
}

.lang-switch {
    display: flex;
    align-items: center;
    font-weight: 600;
}

.lang-switch i {
    margin-right: 5px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    transition: var(--transition-fast);
}

/* Header Scroll State */
#header.scrolled {
    background-color: var(--white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

#header.scrolled .header-content {
    height: 70px;
}

/* ===== HERO SLIDER STYLES ===== */
.hero-slider {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.slider-container {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: 1;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay-color);
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    max-width: 800px;
    width: 90%;
    z-index: 3;
}

.slide-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.slide-content p {
    font-size: 1.25rem;
    margin-bottom: 30px;
}

.slider-navigation {
    position: absolute;
    bottom: 30px;
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 10;
}

.slider-arrows {
    display: flex;
    margin-bottom: 20px;
}

.arrow {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    margin: 0 10px;
    border: none;
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

.arrow:hover {
    background-color: var(--secondary-color);
}

.slider-dots {
    display: flex;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.dot.active {
    background-color: var(--white);
    transform: scale(1.2);
}

/* ===== ABOUT SECTION STYLES ===== */
.about-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.about-image img {
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.key-stats {
    display: flex;
    flex-wrap: wrap;
    margin-top: 30px;
    gap: 20px;
}

.stat-item {
    flex: 1;
    min-width: 120px;
    text-align: center;
    padding: 20px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

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

/* ===== SERVICES SECTION STYLES ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: 35px 25px;
    box-shadow: var(--shadow-light);
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
    text-align: center;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--border-color);
}

.service-icon {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 25px;
    transition: var(--transition-medium);
    position: relative;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-medium);
}

.service-icon i {
    font-size: 2.2rem;
    color: var(--white);
    transition: var(--transition-fast);
}

.service-card:hover .service-icon i {
    transform: scale(1.1);
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
    color: var(--primary-color);
}

.service-card p {
    color: var(--light-text);
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features {
    margin: 20px 0;
    text-align: left;
}

.service-features li {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--light-text);
    font-size: 0.9rem;
}

.service-features i {
    color: var(--success-color);
    font-size: 0.8rem;
}

.read-more {
    font-weight: 600;
    color: var(--secondary-color);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    transition: var(--transition-fast);
    margin-top: 15px;
}

.read-more:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    transform: translateX(5px);
}

.read-more i {
    transition: var(--transition-fast);
}

.read-more:hover i {
    transform: translateX(3px);
}

/* ===== PROJECTS SECTION STYLES ===== */
.project-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-btn {
    background-color: transparent;
    border: none;
    padding: 8px 20px;
    margin: 5px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--light-text);
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn.active,
.filter-btn:hover {
    color: var(--secondary-color);
}

.filter-btn.active {
    position: relative;
}

.filter-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background-color: var(--secondary-color);
}

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

.project-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.project-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-medium);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 60, 110, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition-medium);
}

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

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

.project-overlay h3 {
    color: var(--white);
    margin-bottom: 5px;
}

.project-overlay p {
    color: var(--white);
    opacity: 0.8;
    margin-bottom: 15px;
}

.project-link {
    width: 50px;
    height: 50px;
    background-color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    transition: var(--transition-fast);
}

.project-link:hover {
    background-color: var(--secondary-color);
    color: var(--white);
}

/* ===== TEAM SECTION STYLES ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.team-member {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition-medium);
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.member-image {
    position: relative;
    overflow: hidden;
}

.member-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition-medium);
}

.team-member:hover .member-image img {
    transform: scale(1.05);
}

.member-info {
    padding: 20px;
    text-align: center;
}

.member-info h3 {
    margin-bottom: 5px;
}

.member-position {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.member-bio {
    color: var(--light-text);
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.member-social {
    display: flex;
    justify-content: center;
}

.member-social a {
    width: 35px;
    height: 35px;
    background-color: rgba(26, 60, 110, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    margin: 0 5px;
    transition: var(--transition-fast);
}

.member-social a:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* ===== TESTIMONIALS SECTION STYLES ===== */
.testimonials-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-slide {
    display: none;
    animation: fadeIn 1s ease;
}

.testimonial-slide.active {
    display: block;
}

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

.testimonial-content {
    background-color: var(--white);
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.testimonial-quote {
    position: relative;
    padding-left: 30px;
    margin-bottom: 20px;
}

.testimonial-quote i {
    position: absolute;
    top: 0;
    left: 0;
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.testimonial-quote p {
    font-style: italic;
    color: var(--dark-text);
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
}

.author-info h4 {
    margin-bottom: 5px;
}

.author-info p {
    color: var(--light-text);
    font-size: 0.9rem;
    margin-bottom: 0;
}

.testimonial-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}

.testimonial-arrow {
    background-color: transparent;
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    border: 2px solid var(--primary-color);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.testimonial-arrow:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.testimonial-dots {
    display: flex;
    margin: 0 15px;
}

.testimonial-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(26, 60, 110, 0.3);
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.testimonial-dot.active {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

/* ===== CONTACT SECTION STYLES ===== */
.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.contact-form-container {
    flex: 1;
    min-width: 300px;
}

.contact-form {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px 18px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition-fast);
    background-color: var(--white);
    font-family: var(--body-font);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 60, 110, 0.1);
    transform: translateY(-1px);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.form-group input.success,
.form-group textarea.success {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.form-validation {
    font-size: 0.85rem;
    margin-top: 5px;
    min-height: 20px;
}

.form-validation.error {
    color: var(--error-color);
}

.form-validation.success {
    color: var(--success-color);
}

.char-counter {
    text-align: right;
    font-size: 0.8rem;
    color: var(--light-text);
    margin-top: 5px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    line-height: 1.4;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
    cursor: pointer;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 3px;
    position: relative;
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: -2px;
    left: 2px;
    color: var(--success-color);
    font-weight: bold;
    font-size: 14px;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    border-color: var(--success-color);
    background-color: var(--success-color);
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.info-item {
    display: flex;
    margin-bottom: 30px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(26, 60, 110, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 15px;
}

.info-icon i {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.info-content h4 {
    margin-bottom: 5px;
}

.info-content p {
    color: var(--light-text);
    margin-bottom: 5px;
}

.social-links {
    display: flex;
    margin-top: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(26, 60, 110, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    margin-right: 10px;
    transition: var(--transition-fast);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.map-container {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* ===== FOOTER STYLES ===== */
#footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding-top: 80px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column {
    flex: 1;
    min-width: 200px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo img {
    height: 50px;
}

.footer-column p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.footer-column h3 {
    color: var(--white);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--secondary-color);
    display: inline-block;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

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

.footer-social {
    display: flex;
    margin-top: 20px;
}

.footer-social a {
    width: 35px;
    height: 35px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    margin-right: 10px;
    transition: var(--transition-fast);
}

.footer-social a:hover {
    background-color: var(--secondary-color);
}

.newsletter-form {
    display: flex;
    margin-top: 20px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-family: var(--body-font);
    font-size: 0.9rem;
}

.newsletter-form button {
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 0 4px 4px 0;
    padding: 0 15px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.newsletter-form button:hover {
    background-color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.7);
    margin-left: 20px;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.footer-bottom-links a:hover {
    color: var(--secondary-color);
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
}

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

.back-to-top:hover {
    background-color: var(--secondary-color);
}

/* ===== FORM MESSAGE STYLES ===== */
.form-message {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.form-message.success {
    background-color: rgba(39, 174, 96, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.form-message.error {
    background-color: rgba(231, 76, 60, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

.form-message h3 {
    margin: 0 0 10px 0;
    color: inherit;
}

.form-message p {
    margin: 0;
    color: inherit;
    opacity: 0.9;
}

/* ===== ANIMATION STYLES ===== */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

.animate-in {
    animation: slideInUp 0.6s ease-out;
}

.service-card.animate-in {
    animation: fadeInScale 0.6s ease-out;
}

.about-content.animate-in {
    animation: slideInLeft 0.8s ease-out;
}

.contact-content.animate-in {
    animation: slideInRight 0.8s ease-out;
}

/* ===== ENHANCED HOVER EFFECTS ===== */
.service-card:hover .service-icon {
    animation: bounce 0.6s ease-in-out;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ===== SCROLL INDICATOR ===== */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--border-color);
    z-index: 1001;
}

.scroll-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    width: 0%;
    transition: width 0.1s ease;
}

/* ===== ENHANCED MOBILE EXPERIENCE ===== */
@media (max-width: 768px) {
    .service-card {
        padding: 25px 20px;
    }
    
    .service-icon {
        width: 70px;
        height: 70px;
    }
    
    .service-icon i {
        font-size: 1.8rem;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 12px 15px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .btn {
        padding: 15px 25px;
        font-size: 16px;
    }
    
    .service-features {
        margin: 15px 0;
    }
    
    .service-features li {
        font-size: 0.85rem;
    }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for better accessibility */
.btn:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000000;
        --secondary-color: #ff6600;
        --accent-color: #006600;
        --dark-text: #000000;
        --light-text: #333333;
        --border-color: #666666;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .loading-screen,
    .back-to-top,
    .mobile-menu-toggle,
    .slider-navigation,
    .form-message {
        display: none !important;
    }
    
    .service-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .btn {
        background-color: #fff !important;
        color: #000 !important;
        border: 1px solid #000 !important;
    }
}

/* Modern Animated Loader - Colorful Gradient Dots */
.modern-loader {
    display: flex;
    gap: 14px;
    justify-content: center;
    align-items: center;
    margin-bottom: 18px;
}
.modern-loader .dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a3c6e 0%, #2ecc71 100%);
    box-shadow: 0 2px 8px rgba(26,60,110,0.15);
    animation: morphDot 1.2s infinite cubic-bezier(.68,-0.55,.27,1.55);
}
.modern-loader .dot:nth-child(2) {
    background: linear-gradient(135deg, #e67e22 0%, #2ecc71 100%);
    animation-delay: 0.2s;
}
.modern-loader .dot:nth-child(3) {
    background: linear-gradient(135deg, #2ecc71 0%, #1a3c6e 100%);
    animation-delay: 0.4s;
}
@keyframes morphDot {
    0%, 80%, 100% { transform: scale(0.7) rotate(0deg); opacity: 0.7; }
    40% { transform: scale(1.25) rotate(15deg); opacity: 1; }
    60% { transform: scale(1.1) rotate(-10deg); }
}
.loading-text {
    color: #1a3c6e;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-align: center;
    text-shadow: 0 2px 8px rgba(26,60,110,0.08);
    margin-top: 2px;
}

/* Make modal content scrollable if content is tall */
.modal-content {
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(26,60,110,0.18);
}

.modal-overlay {
    align-items: center;
    justify-content: center;
    display: flex;
}

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #f9f9fb; /* near white */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
}

.modal-overlay {
    align-items: center;
    justify-content: center;
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(34, 34, 34, 0.25);
    z-index: 10000;
}

.modal-content {
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(26,60,110,0.18);
    background: #fff;
    margin: 24px;
    min-width: 320px;
    max-width: 98vw;
}

/* Responsive grid for services in modals */
#designSubModal .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    padding: 24px 0 8px 0;
}
#designSubModal .service-card {
    min-width: 0;
    max-width: 100%;
    margin: 0;
    padding: 28px 18px 22px 18px;
    font-size: 1rem;
}
#designSubModal h2 {
    text-align: center;
    font-size: 2rem;
    margin: 18px 0 0 0;
    letter-spacing: 1px;
}
#designSubModal .modal-content {
    padding: 0 0 18px 0;
}

@media (max-width: 1100px) {
    #designSubModal .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 700px) {
    #designSubModal .services-grid {
        grid-template-columns: 1fr;
        gap: 18px;
        padding: 12px 0 4px 0;
    }
    #designSubModal .service-card {
        padding: 18px 8px 14px 8px;
        font-size: 0.98rem;
    }
    #designSubModal h2 {
        font-size: 1.2rem;
        margin: 10px 0 0 0;
    }
    .modal-content {
        margin: 6px;
    }
}

/* Modal transition */
.modal-overlay {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(.4,0,.2,1);
}
.modal-overlay[style*="display: flex"] {
    opacity: 1;
    pointer-events: auto;
}