/* ========================================
   SINNERGIA ENGENHARIA E SOLUÇÕES
   Responsive Stylesheet (Mobile-First)
   ======================================== */

/* ========================================
   TABLET (max-width: 992px)
   ======================================== */

@media (max-width: 992px) {
    /* Typography */
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    
    .hero-title { font-size: 3rem; }
    .page-title { font-size: 2.5rem; }
    .section-title { font-size: 2rem; }
    
    /* Navigation */
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--color-white);
        flex-direction: column;
        padding: 2rem;
        gap: 0;
        box-shadow: var(--shadow-lg);
        transition: var(--transition-smooth);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        width: 100%;
        border-bottom: 1px solid var(--color-light);
    }
    
    .nav-link {
        display: block;
        padding: 1rem 0;
        width: 100%;
    }
    
    /* Grids */
    .mvv-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .differentials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-list {
        grid-template-columns: 1fr;
    }
    
    .about-intro-content,
    .about-intro-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .about-intro-image {
        order: -1;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .stat-box {
        flex-direction: column;
        text-align: center;
    }
    
    /* Service Detailed */
    .service-detailed-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .service-detailed-reverse .service-detailed-content {
        direction: ltr;
    }
    
    .service-detailed-image {
        order: -1;
    }
    
    .why-choose-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Portfolio */
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* About Page */
    .mvv-detailed-grid {
        grid-template-columns: 1fr;
    }
    
    .values-detailed-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .footer-about {
        grid-column: 1 / -1;
    }
}

/* ========================================
   MOBILE (max-width: 768px)
   ======================================== */

@media (max-width: 768px) {
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    
    .hero-title { font-size: 2.25rem; }
    .page-title { font-size: 2rem; }
    .section-title { font-size: 1.75rem; }
    .lead { font-size: 1.125rem; }
    
    /* Spacing */
    :root {
        --section-padding: 50px 0;
    }
    
    .section-padding {
        padding: 50px 0;
    }
    
    .container {
        padding: 0 15px;
    }
    
    /* Hero */
    .hero {
        min-height: 600px;
        margin-top: 70px;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    /* Page Header */
    .page-header {
        padding: 120px 0 80px;
    }
    
    /* Buttons */
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .btn-lg {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
    
    /* Grids */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .differentials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .why-choose-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* Portfolio */
    .portfolio-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .portfolio-image img {
        height: 250px;
    }
    
    /* Contact */
    .contact-form-wrapper {
        padding: 2rem 1.5rem;
    }
    
    .map-container {
        height: 350px;
    }
    
    .map-overlay {
        top: 20px;
        left: 20px;
        right: 20px;
        transform: none;
        padding: 1.5rem;
    }
    
    .map-info h3 {
        font-size: 1.25rem;
    }
    
    /* About Page */
    .values-detailed-grid {
        grid-template-columns: 1fr;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    /* Floating Buttons */
    .floating-buttons {
        bottom: 20px;
        right: 20px;
    }
    
    .floating-btn {
        width: 55px;
        height: 55px;
        font-size: 1.5rem;
    }
    
    /* Section Headers */
    .section-header {
        margin-bottom: 2.5rem;
    }
    
    .section-subtitle {
        font-size: 0.8rem;
    }
}

/* ========================================
   SMALL MOBILE (max-width: 480px)
   ======================================== */

@media (max-width: 480px) {
    /* Typography */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .hero-title { font-size: 1.875rem; }
    .page-title { font-size: 1.75rem; }
    .section-title { font-size: 1.5rem; }
    
    /* Hero */
    .hero {
        min-height: 500px;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    /* Cards */
    .mvv-card,
    .service-card,
    .testimonial-card,
    .cert-card {
        padding: 2rem 1.5rem;
    }
    
    .mvv-icon,
    .service-icon {
        width: 70px;
        height: 70px;
        font-size: 1.75rem;
    }
    
    .differential-icon,
    .why-icon,
    .cert-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    /* CTA Section */
    .cta-title {
        font-size: 1.75rem;
    }
    
    .cta-text {
        font-size: 1.05rem;
    }
    
    /* Contact Form */
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .contact-info-card {
        padding: 2rem 1.5rem;
    }
    
    .form-control {
        padding: 0.75rem 1rem 0.75rem 2.5rem;
        font-size: 0.95rem;
    }
    
    .form-icon {
        left: 0.875rem;
        bottom: 0.75rem;
        font-size: 1rem;
    }
    
    /* FAQ */
    .faq-question {
        padding: 1.25rem 1.5rem;
    }
    
    .faq-question h4 {
        font-size: 1rem;
    }
    
    .faq-answer p {
        padding: 0 1.5rem 1.25rem;
        font-size: 0.95rem;
    }
    
    /* Floating Buttons */
    .floating-buttons {
        bottom: 15px;
        right: 15px;
    }
    
    .floating-btn {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    /* Stats */
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-box .stat-number {
        font-size: 2.5rem;
    }
    
    /* Logo */
    .logo-img,
    .footer-logo-img {
        height: 40px;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    /* Portfolio */
    .portfolio-image img {
        height: 220px;
    }
    
    .portfolio-info {
        padding: 1.5rem;
    }
    
    .portfolio-title {
        font-size: 1.25rem;
    }
    
    /* Team Cards */
    .team-image img {
        height: 300px;
    }
    
    .team-info {
        padding: 1.5rem;
    }
}

/* ========================================
   LANDSCAPE ORIENTATION (Mobile)
   ======================================== */

@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        height: auto;
    }
    
    .page-header {
        padding: 100px 0 60px;
    }
    
    .scroll-indicator {
        display: none;
    }
}

/* ========================================
   LARGE DESKTOP (min-width: 1400px)
   ======================================== */

@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
}

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

@media print {
    .header,
    .floating-buttons,
    .scroll-indicator,
    .cta-section {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
        background: #fff;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
    
    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
        page-break-inside: avoid;
    }
    
    img {
        max-width: 100% !important;
        page-break-inside: avoid;
    }
    
    .section-padding {
        padding: 20px 0;
    }
}

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

/* Focus Styles for Keyboard Navigation */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

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

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #FF4500;
        --color-gray: #555;
    }
    
    .btn-outline,
    .btn-outline-white {
        border-width: 3px;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    /* Uncomment to enable dark mode
    :root {
        --color-dark: #F5F5F5;
        --color-light: #2C3E50;
        --color-white: #1A1A1A;
        --color-secondary: #ECF0F1;
    }
    */
}