/* ============================
   Custom CSS for JF Dev Expert
   ============================ */

/* CSS Variables for consistent theming */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --white-color: #ffffff;
    --text-dark: #333333;
    --text-light: #666666;
    --border-color: #dee2e6;
    --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --transition: all 0.3s ease;
    --border-radius: 0.5rem;
}

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Custom Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    border: none;
    color: var(--white-color);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3, var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white-color);
}

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

/* Navigation Styles */
.navbar {
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar.scrolled {
    background-color: rgba(33, 37, 41, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    padding: 0.5rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--dark-color), #1a1d20);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::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 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" style="stop-color:%23ffffff;stop-opacity:0.1"/><stop offset="100%" style="stop-color:%23ffffff;stop-opacity:0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="300" cy="700" r="120" fill="url(%23a)"/></svg>');
    opacity: 0.1;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-icon {
    font-size: 15rem;
    color: var(--primary-color);
    opacity: 0.1;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.1; }
    50% { transform: scale(1.05); opacity: 0.2; }
}

.hero-buttons .btn {
    margin: 0.5rem;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-down {
    color: var(--white-color);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    text-decoration: none;
}

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

/* Page Header */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--dark-color), #1a1d20);
    text-align: center;
}

/* About Section Images */
.about-image,
.about-image-large {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 300px;
    background: linear-gradient(135deg, var(--light-color), #e9ecef);
    border-radius: var(--border-radius);
    margin: 2rem 0;
}

.about-icon,
.about-icon-large {
    font-size: 8rem;
    color: var(--primary-color);
    opacity: 0.3;
}

.about-icon-large {
    font-size: 12rem;
}

/* Feature Items */
.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.feature-box {
    display: flex;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    margin-bottom: 2rem;
}

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

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-right: 1rem;
    min-width: 60px;
}

/* Skills Section */
.skill-item {
    margin-bottom: 2rem;
}

.skill-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.skill-percentage {
    font-weight: 600;
    color: var(--primary-color);
}

.skill-progress {
    height: 10px;
    border-radius: 5px;
    overflow: hidden;
    background-color: rgba(255, 255, 255, 0.1);
}

.skill-progress .progress-bar {
    background: linear-gradient(90deg, var(--primary-color), #0056b3);
    transition: width 2s ease-in-out;
    border-radius: 5px;
}

/* Service Cards */
.service-card {
    background: var(--white-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid var(--border-color);
}

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

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: block;
}

.service-detail-card {
    background: var(--white-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border: 2px solid transparent;
    position: relative;
}

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

.service-detail-card.featured {
    border-color: var(--primary-color);
    position: relative;
}

.service-detail-card.featured::before {
    content: 'POPULAR';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--white-color);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.service-icon-large {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
    text-align: left;
    margin: 1.5rem 0;
}

.service-features li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.service-price {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Value Cards */
.value-card {
    padding: 2rem;
    background: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}

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

.value-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

/* Team Cards */
.team-card {
    background: var(--white-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.team-image {
    margin-bottom: 1.5rem;
}

.team-image i {
    font-size: 5rem;
    color: var(--secondary-color);
}

.team-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.team-bio {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.team-social a {
    color: var(--secondary-color);
    font-size: 1.2rem;
    transition: var(--transition);
}

.team-social a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Process Steps */
.process-step {
    padding: 2rem 1rem;
}

.process-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    position: relative;
}

.process-number::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 100%;
    width: 100px;
    height: 2px;
    background: var(--border-color);
    z-index: -1;
}

.process-step:last-child .process-number::after {
    display: none;
}

/* Testimonial Cards */
.testimonial-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    height: 100%;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 123, 255, 0.1);
}

.stars {
    color: #ffc107;
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.testimonial-author h5 {
    margin-bottom: 0.25rem;
    color: var(--white-color);
}

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

/* Portfolio Styles */
.portfolio-filter {
    margin-bottom: 3rem;
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.5rem 1.5rem;
    margin: 0 0.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-color);
    color: var(--white-color);
}

.portfolio-card {
    background: var(--white-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.portfolio-image {
    position: relative;
    height: 200px;
    background: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.portfolio-placeholder {
    font-size: 4rem;
    color: var(--secondary-color);
    opacity: 0.3;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 123, 255, 0.9);
    color: var(--white-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-image:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-links {
    margin-top: 1rem;
}

.portfolio-link {
    color: var(--white-color);
    font-size: 1.2rem;
    margin: 0 0.5rem;
    transition: var(--transition);
}

.portfolio-link:hover {
    color: var(--white-color);
    transform: scale(1.2);
}

.portfolio-info {
    padding: 1.5rem;
}

.portfolio-category {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Contact Styles */
.contact-form-wrapper {
    background: var(--white-color);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.contact-info-card {
    background: var(--white-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}

.contact-info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.form-control {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    transition: var(--transition);
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    outline: none;
}

.form-select {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    transition: var(--transition);
    font-size: 1rem;
    background-color: var(--white-color);
}

.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    outline: none;
}

/* Success Popup Styles */
.success-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.3s ease;
}

.success-popup {
    background: var(--white-color);
    border-radius: var(--border-radius);
    padding: 0;
    max-width: 400px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

.success-popup-content {
    text-align: center;
    padding: 2rem;
}

.success-popup .success-icon {
    font-size: 4rem;
    color: #28a745;
    margin-bottom: 1rem;
}

.success-popup h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.success-popup p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

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

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: scale(0.8) translateY(-50px);
    }
    to { 
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Remove complex form validation styles */

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.whatsapp-btn a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: var(--white-color);
    border-radius: 50%;
    font-size: 1.5rem;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-btn a:hover {
    transform: scale(1.1);
    color: var(--white-color);
}

@keyframes pulse-whatsapp {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

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

.back-to-top:hover {
    background: #0056b3;
    transform: translateY(-3px);
}

/* Footer Styles */
footer {
    background: var(--dark-color) !important;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-contact {
    list-style: none;
}

.footer-contact li {
    margin-bottom: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

.social-links {
    margin-top: 1rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white-color);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
}

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

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    text-align: center;
    color: var(--primary-color);
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease;
}

/* Responsive Design */
@media (max-width: 1199.98px) {
    .section-title {
        font-size: 2.2rem;
    }
    
    .hero-icon {
        font-size: 12rem;
    }
}

@media (max-width: 991.98px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-icon {
        font-size: 10rem;
        margin-top: 2rem;
    }
    
    .process-number::after {
        display: none;
    }
    
    .contact-form-wrapper {
        padding: 2rem;
    }
}

@media (max-width: 767.98px) {
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero-section {
        padding: 2rem 0;
        text-align: center;
    }
    
    .hero-icon {
        font-size: 8rem;
    }
    
    .page-header {
        padding: 100px 0 40px;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }
    
    .service-detail-card,
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .whatsapp-btn,
    .back-to-top {
        right: 20px;
    }
    
    .whatsapp-btn {
        bottom: 20px;
    }
    
    .back-to-top {
        bottom: 90px;
    }
}

@media (max-width: 575.98px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.25rem;
        font-size: 1rem;
    }
    
    .filter-btn {
        margin: 0.25rem;
        padding: 0.4rem 1rem;
        font-size: 0.9rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .whatsapp-btn,
    .back-to-top,
    .hero-scroll-indicator {
        display: none !important;
    }
    
    .hero-section {
        min-height: auto;
        padding: 2rem 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.3);
    }
    
    .btn-primary {
        background: #0056b3;
        border: 2px solid #003d82;
    }
    
    .service-card,
    .testimonial-card,
    .portfolio-card {
        border: 2px solid var(--border-color);
    }
}

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