/* ===================================
   ACL Heal - Enhanced Mobile Optimization
   100% mobile-first responsive design
   =================================== */

/* Mobile-First Touch Optimizations */
@media (max-width: 1024px) {
    /* Increase touch targets to minimum 44x44px (Apple HIG & WCAG 2.5.5) */
    button,
    a,
    input[type="submit"],
    input[type="button"],
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    /* Prevent text size adjustment on device orientation */
    html {
        -webkit-text-size-adjust: 100%;
        -moz-text-size-adjust: 100%;
        -ms-text-size-adjust: 100%;
        text-size-adjust: 100%;
    }

    /* Improve tap highlighting */
    * {
        -webkit-tap-highlight-color: rgba(37, 99, 235, 0.2);
    }

    /* Prevent horizontal scroll */
    body {
        overflow-x: hidden;
    }

    /* Optimize form inputs for mobile */
    input,
    textarea,
    select {
        font-size: 16px; /* Prevents iOS zoom on focus */
        max-width: 100%;
    }

    /* Better spacing for mobile */
    .container {
        padding: 0 1rem;
    }

    /* Optimize images for mobile */
    img {
        max-width: 100%;
        height: auto;
    }
}

/* Tablet Optimizations (768px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .diff-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

/* Mobile Optimizations (max-width: 768px) */
@media (max-width: 768px) {
    /* Typography scaling */
    :root {
        --spacing-xs: 0.375rem;
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 2.5rem;
    }

    /* Responsive typography */
    h1 {
        font-size: 1.875rem; /* 30px */
        line-height: 1.2;
    }
    h2 {
        font-size: 1.5rem; /* 24px */
    }
    h3 {
        font-size: 1.25rem; /* 20px */
    }

    .lead {
        font-size: 1.125rem;
    }

    /* Header optimizations */
    .site-header {
        padding: 0.75rem 0;
    }

    .logo a {
        font-size: 1.25rem;
    }

    /* Crisis banner - more compact on mobile */
    .crisis-banner {
        font-size: 0.8125rem;
        padding: 0.625rem var(--spacing-sm);
    }

    /* Hero section mobile */
    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero h1 {
        font-size: 1.75rem;
        margin-bottom: var(--spacing-md);
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
        padding: 0 var(--spacing-sm);
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
        padding: 0 var(--spacing-md);
    }

    .hero-cta .btn {
        width: 100%;
    }

    /* Mobile navigation improvements */
    .nav-menu {
        gap: 0;
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
        width: 100%;
    }

    .dropdown.active .dropdown-menu {
        display: block;
    }

    .dropdown > a::after {
        content: ' ▼';
        font-size: 0.75rem;
        float: right;
    }

    .dropdown.active > a::after {
        content: ' ▲';
    }

    /* Stats grid mobile */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin: var(--spacing-lg) 0;
    }

    .stat {
        padding: var(--spacing-md);
    }

    .stat-number {
        font-size: 2.25rem;
    }

    /* Journey timeline mobile */
    .timeline-stage {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
    }

    .stage-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .stage-date {
        align-self: flex-start;
    }

    /* Subscribe form mobile */
    .journey-subscribe {
        padding: var(--spacing-lg);
    }

    .subscribe-form {
        flex-direction: column;
    }

    .subscribe-form input[type="email"] {
        width: 100%;
    }

    /* Cards optimizations */
    .diff-card,
    .stage-card {
        padding: var(--spacing-md);
    }

    .diff-icon {
        font-size: 2.5rem;
        margin-bottom: var(--spacing-sm);
    }

    /* Footer mobile */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-col {
        text-align: left;
    }

    /* Section padding mobile */
    .mission,
    .nolan-journey,
    .differentiators,
    .get-started {
        padding: var(--spacing-xl) 0;
    }

    /* Disclaimer mobile */
    .disclaimer {
        padding: var(--spacing-md) 0;
    }

    .disclaimer-content {
        padding: 0 var(--spacing-sm);
    }
}

/* Small Mobile Optimizations (max-width: 480px) */
@media (max-width: 480px) {
    h1 {
        font-size: 1.625rem; /* 26px */
    }
    h2 {
        font-size: 1.375rem; /* 22px */
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .diff-icon {
        font-size: 2rem;
    }

    /* Tighter spacing on very small screens */
    .container {
        padding: 0 0.75rem;
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.9375rem;
    }
}

/* Landscape mobile optimization */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero h1 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-sm);
    }

    .hero-subtitle {
        font-size: 0.9375rem;
        margin-bottom: var(--spacing-md);
    }

    .section-intro {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }
}

/* Menu open body lock (prevent scroll) */
body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* Mobile-specific utilities */
.mobile-only {
    display: none;
}

@media (max-width: 768px) {
    .mobile-only {
        display: block;
    }

    .desktop-only {
        display: none;
    }
}

/* Touch-friendly spacing for interactive elements */
@media (max-width: 768px) {
    .nav-menu a,
    .dropdown-menu a,
    .stage-card,
    .btn,
    button,
    input[type="submit"] {
        -webkit-tap-highlight-color: rgba(37, 99, 235, 0.15);
        cursor: pointer;
    }

    /* Prevent double-tap zoom on links */
    a, button {
        touch-action: manipulation;
    }
}

/* Safe area insets for notched devices (iPhone X+) */
@supports (padding: max(0px)) {
    .container {
        padding-left: max(1rem, env(safe-area-inset-left));
        padding-right: max(1rem, env(safe-area-inset-right));
    }

    .site-header {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    .site-footer {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
        padding-bottom: max(var(--spacing-lg), env(safe-area-inset-bottom));
    }
}

/* Optimize scrolling performance */
* {
    -webkit-overflow-scrolling: touch;
}

/* Loading optimization for mobile */
@media (max-width: 768px) {
    /* Disable animations on mobile for better performance */
    .timeline-stage:hover,
    .diff-card:hover,
    .stage-card:hover {
        transform: none;
    }

    /* Keep shadow effects lighter on mobile */
    .journey-subscribe,
    .timeline-stage:hover {
        box-shadow: var(--shadow-sm);
    }
}

/* High DPI / Retina display optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Optimize for retina displays */
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Dark mode support (respects user preference) */
@media (prefers-color-scheme: dark) {
    /* Optional: Add dark mode styles here if desired */
    /* Currently maintaining light mode for medical/trust context */
}

/* Reduced motion support */
@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;
    }
}

/* Print optimizations */
@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a,
    a:visited {
        text-decoration: underline;
    }

    a[href]::after {
        content: " (" attr(href) ")";
    }

    h2, h3 {
        page-break-after: avoid;
    }

    .crisis-banner,
    .site-header,
    .site-footer,
    .journey-subscribe,
    .hero-cta,
    .menu-toggle {
        display: none !important;
    }
}