/* Responsive Design - Complete Mobile First Approach */

/* Custom viewport units for mobile browsers */
:root {
    --vh: 1vh;
    --header-height-mobile: 70px;
    --spacing-section-mobile: 3rem;
}

/* Fix for mobile viewport height issues */
.hero {
    min-height: 100vh;
    min-height: calc(var(--vh, 1vh) * 100);
}

/* Base styles - Mobile First (0px and up) */

/* Small Mobile Devices */
@media (max-width: 480px) {
    :root {
        --header-height: var(--header-height-mobile);
        --spacing-section: var(--spacing-section-mobile);
    }
    
    .container {
        padding: 0 0.75rem;
    }
    
    .header {
        min-height: var(--header-height-mobile) !important;
    }
    
    .nav-container {
        padding: 0.5rem 0.75rem !important;
    }
    
    .logo-text {
        font-size: 1.2rem !important;
    }
    
    .logo-icon {
        width: 35px !important;
        height: 35px !important;
    }
    
    .menu-toggle {
        display: flex !important;
        width: 40px !important;
        height: 40px !important;
    }
    
    .nav-menu {
        display: none !important;
    }
    
    .hero {
        min-height: 80vh;
        padding-top: calc(var(--header-height-mobile) + 1rem);
    }
    
    .hero-title {
        font-size: 2rem !important;
    }
    
    .hero-subtitle {
        font-size: 1rem !important;
    }
    
    .section-title {
        font-size: 1.75rem !important;
    }
    
    .section-subtitle {
        font-size: 1rem !important;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-lg) !important;
    }
}

/* Mobile Devices */
@media (max-width: 768px) {
    :root {
        --spacing-section: 4rem;
    }
    
    .menu-toggle {
        display: flex !important;
        width: 42px !important;
        height: 42px !important;
    }
    
    .nav-menu {
        display: none !important;
    }
    
    .hero {
        min-height: 85vh;
        padding-top: calc(var(--header-height) + 1rem);
    }
    
    .hero-title {
        font-size: 2.5rem !important;
    }
    
    .hero-subtitle {
        font-size: 1.125rem !important;
    }
    
    .section-padding {
        padding: var(--spacing-section) 0;
    }
    
    .grid-2 {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xl) !important;
    }
    
    .grid-3 {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xl) !important;
    }
    
    .contact-content {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xl) !important;
    }
    
    .form-grid {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-md) !important;
    }
    
    .footer-social-section {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: var(--spacing-lg) !important;
    }
    
    .footer-bottom {
        flex-direction: column !important;
        gap: var(--spacing-md) !important;
        text-align: center !important;
    }
}

/* Tablet Devices */
@media (min-width: 769px) and (max-width: 1024px) {
    .hero-title {
        font-size: 3rem !important;
    }
    
    .section-title {
        font-size: 2.25rem !important;
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--spacing-xl) !important;
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--spacing-xl) !important;
    }
}

/* Desktop */
@media (min-width: 1025px) {
    .hero-title {
        font-size: 3.5rem !important;
    }
    
    .section-title {
        font-size: 2.5rem !important;
    }
    
    .grid-3 {
        grid-template-columns: repeat(3, 1fr) !important;
    }
    
    .grid-4 {
        grid-template-columns: repeat(4, 1fr) !important;
    }
}

/* Large Desktop */
@media (min-width: 1200px) {
    .nav-container {
        padding: 1.25rem 2rem !important;
    }
    
    .container {
        padding: 0 2rem;
    }
}

/* Utility classes for responsive design */
.hide-mobile {
    display: none !important;
}

.hide-desktop {
    display: block !important;
}

@media (min-width: 769px) {
    .hide-mobile {
        display: block !important;
    }
    
    .hide-desktop {
        display: none !important;
    }
}

/* Responsive text sizes */
.text-responsive-sm {
    font-size: clamp(0.875rem, 2vw, 1rem);
}

.text-responsive-md {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
}

.text-responsive-lg {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

.text-responsive-xl {
    font-size: clamp(2rem, 5vw, 3.5rem);
}