/**
 * 100K Pathway - Performance & Mobile Optimization
 * Critical CSS for fast loading and proper mobile responsiveness
 */

/* ===== PERFORMANCE OPTIMIZATIONS ===== */

/* Hardware acceleration for smooth animations */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Optimize repaints */
.btn, button, a, .card, img {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Note: Lazy loading should be set via HTML attributes: <img loading="lazy" decoding="async"> */

/* Prevent layout shift */
img:not([width]):not([height]) {
    aspect-ratio: attr(width) / attr(height);
}

/* Optimize fonts */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: local('Inter'), url('https://fonts.gstatic.com/s/inter/v12/UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuLyfAZ9hiA.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: local('Inter'), url('https://fonts.gstatic.com/s/inter/v12/UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuGKYAZ9hiA.woff2') format('woff2');
}

/* Reduce animation complexity on slower devices */
@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;
    }
}

/* ===== MOBILE-FIRST RESPONSIVE DESIGN ===== */

/* Base Mobile Styles (320px+) */
:root {
    --mobile-padding: 20px;
    --mobile-section-gap: 60px;
    --mobile-heading-1: 32px;
    --mobile-heading-2: 24px;
    --mobile-heading-3: 20px;
    --mobile-body: 16px;
    --mobile-small: 14px;
}

body {
    font-size: var(--mobile-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

/* Mobile Container */
.container, section, .content-wrapper {
    padding-left: var(--mobile-padding);
    padding-right: var(--mobile-padding);
    max-width: 100%;
    width: 100%;
}

/* Mobile Section Spacing */
section {
    padding: 60px 20px !important;
    min-height: auto !important;
}

section + section {
    margin-top: 0;
}

/* ===== MOBILE TYPOGRAPHY ===== */

h1, .hero-title, .page-title {
    font-size: var(--mobile-heading-1) !important;
    line-height: 1.2 !important;
    margin-bottom: 16px !important;
}

h2, .section-title {
    font-size: var(--mobile-heading-2) !important;
    line-height: 1.3 !important;
    margin-bottom: 12px !important;
}

h3, .subsection-title {
    font-size: var(--mobile-heading-3) !important;
    line-height: 1.4 !important;
    margin-bottom: 8px !important;
}

p {
    font-size: var(--mobile-body) !important;
    line-height: 1.6 !important;
    margin-bottom: 16px !important;
}

/* ===== MOBILE NAVIGATION ===== */

.global-nav, header, nav {
    padding: 16px 20px !important;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--page-bg);
}

.desktop-nav {
    display: none !important;
}

.mobile-menu-toggle {
    display: block !important;
    width: 40px;
    height: 40px;
    padding: 8px;
}

.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--page-bg);
    z-index: 999;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    padding: 32px 20px;
    gap: 8px;
}

.mobile-menu-links a {
    padding: 16px 20px;
    font-size: 18px;
    border-bottom: none;
}

/* ===== MOBILE HERO SECTION ===== */

.hero {
    padding: 80px 20px 60px !important;
    min-height: auto !important;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.hero h1 {
    font-size: 36px !important;
    line-height: 1.2 !important;
    max-width: 100%;
}

.hero p, .hero-subtitle {
    font-size: 18px !important;
    line-height: 1.5 !important;
    max-width: 100%;
}

.hero-stats {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
}

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

.stat-value {
    font-size: 32px !important;
    font-weight: 700;
}

.stat-label {
    font-size: 14px !important;
    margin-top: 8px;
}

/* ===== MOBILE BUTTONS & CTAs ===== */

.btn, .cta-button, button[type="submit"], .btn-primary, .btn-secondary {
    width: 100% !important;
    padding: 16px 24px !important;
    font-size: 16px !important;
    border-radius: 8px;
    margin: 8px 0;
    display: block;
    text-align: center;
}

.cta-group, .button-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

/* ===== MOBILE GRID LAYOUTS ===== */

.grid, .pricing-grid, .stats-grid, .features-grid, .testimonials-grid, .trust-grid {
    display: grid;
    grid-template-columns: 1fr !important;
    gap: 20px;
    width: 100%;
}

/* ===== MOBILE CARDS ===== */

.card, .pricing-card, .feature-card, .stat-card, .testimonial-card, .plan-card {
    padding: 24px !important;
    margin-bottom: 16px;
    border-radius: 12px;
    width: 100%;
}

.pricing-card {
    padding: 32px 24px !important;
}

/* ===== MOBILE FORMS ===== */

form, .form-group {
    width: 100%;
}

input, textarea, select {
    width: 100% !important;
    padding: 14px 16px !important;
    font-size: 16px !important;
    border-radius: 8px;
    margin-bottom: 16px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05);
    color: var(--page-text, #E5E7EB);
    -webkit-appearance: none;
    appearance: none;
}

input:focus, textarea:focus, select:focus {
    outline: 2px solid var(--accent, #00B894);
    outline-offset: 2px;
    border-color: var(--accent, #00B894);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--page-text-heading, #FFFFFF);
}

/* Form buttons mobile */
button[type="submit"], .submit-btn {
    width: 100% !important;
    padding: 16px 24px !important;
    font-size: 16px !important;
    min-height: 52px;
    touch-action: manipulation;
}

/* Prevent zoom on iOS */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
textarea,
select {
    font-size: 16px !important;
}

/* Form validation states */
input:invalid:not(:placeholder-shown),
textarea:invalid:not(:placeholder-shown),
select:invalid:not(:placeholder-shown) {
    border-color: #EF4444;
}

input:valid:not(:placeholder-shown),
textarea:valid:not(:placeholder-shown),
select:valid:not(:placeholder-shown) {
    border-color: #10B981;
}

/* ===== MOBILE FOOTER ===== */

footer, .global-footer {
    padding: 48px 20px 32px !important;
}

.footer-container, .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 32px;
    text-align: left;
}

.footer-section {
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    padding: 8px 0;
    font-size: 15px;
}

/* ===== MOBILE TABLES ===== */

table {
    width: 100%;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

thead {
    display: none;
}

tbody, tr, td {
    display: block;
    width: 100%;
}

tr {
    margin-bottom: 16px;
    padding: 16px;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
}

td {
    padding: 8px 0;
    border: none;
}

td::before {
    content: attr(data-label);
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
    color: var(--accent);
}

/* ===== MOBILE IMAGES ===== */

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

.hero-image, .feature-image {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: 12px;
    margin: 24px 0;
}

/* ===== MOBILE TIMELINE ===== */

.timeline, .phases, .process-steps {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.phase, .timeline-item, .step {
    padding: 24px;
    border-left: none;
    margin-left: 16px;
}

.phase-number, .step-number {
    width: 40px;
    height: 40px;
    font-size: 18px;
    margin-left: -28px;
    margin-bottom: 16px;
}

/* ===== MOBILE FAQ ===== */

.faq-item {
    margin-bottom: 16px;
}

.faq-question {
    padding: 16px;
    font-size: 16px;
}

.faq-answer {
    padding: 16px;
    font-size: 15px;
    line-height: 1.6;
}

/* ===== MOBILE MODALS ===== */

.modal, .modal-overlay {
    padding: 20px;
}

.modal-content {
    width: 95%;
    max-width: 100%;
    padding: 24px;
    max-height: 90vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* ===== MOBILE ANIMATIONS (OPTIMIZED) ===== */

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

.reveal-mobile {
    animation: mobileSlideUp 0.4s ease-out;
}

/* Disable heavy animations on mobile */
/* Disable 3D animation canvas globally */
.particle-background, .bg-canvas-3d, #bgCanvas3d {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
}

/* Disable noise overlay globally */
.glow-layer-3d, .noise-overlay-3d {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
}

/* ===== TABLET BREAKPOINT (768px+) ===== */

@media (min-width: 768px) {
    :root {
        --mobile-padding: 40px;
        --mobile-heading-1: 42px;
        --mobile-heading-2: 32px;
        --mobile-heading-3: 24px;
    }
    
    section {
        padding: 80px 40px !important;
    }
    
    .grid, .pricing-grid, .features-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 24px;
    }
    
    .hero h1 {
        font-size: 48px !important;
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

/* ===== DESKTOP BREAKPOINT (1024px+) ===== */

@media (min-width: 1024px) {
    :root {
        --mobile-padding: 60px;
        --mobile-heading-1: 56px;
        --mobile-heading-2: 40px;
        --mobile-heading-3: 28px;
    }
    
    body {
        font-size: 18px;
    }
    
    .container {
        max-width: 1200px;
        margin: 0 auto;
    }
    
    section {
        padding: 100px 60px !important;
    }
    
    .desktop-nav {
        display: flex !important;
    }
    
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .grid, .pricing-grid, .features-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 32px;
    }
    
    .hero {
        padding: 120px 60px !important;
        min-height: 80vh;
    }
    
    .hero h1 {
        font-size: 64px !important;
    }
    
    .hero-stats {
        flex-direction: row;
        justify-content: center;
        gap: 60px;
    }
    
    .btn, .cta-button {
        width: auto !important;
        display: inline-block;
    }
    
    .cta-group {
        flex-direction: row;
        justify-content: center;
    }
    
    .footer-container {
        grid-template-columns: 2fr 1fr 1fr 1fr !important;
    }
    
    /* Disable 3D effects on desktop too */
    .particle-background, .bg-canvas-3d, #bgCanvas3d {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }
    
    /* Disable noise overlay on desktop too */
    .glow-layer-3d, .noise-overlay-3d {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }
}

/* ===== LARGE DESKTOP (1440px+) ===== */

@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
    
    .hero h1 {
        font-size: 72px !important;
    }
}

/* ===== PERFORMANCE: CONTENT VISIBILITY ===== */

section:not(.hero) {
    content-visibility: auto;
    contain-intrinsic-size: 0 500px;
}

/* ===== TOUCH OPTIMIZATION ===== */

@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    a, button, .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Remove hover effects */
    *:hover {
        transform: none !important;
    }
    
    /* Disable magnetic effects on touch */
    .btn-magnetic {
        transform: none !important;
    }
}

/* ===== LANDSCAPE MOBILE FIX ===== */

@media (max-height: 600px) and (orientation: landscape) {
    .hero {
        min-height: auto !important;
        padding: 40px 20px !important;
    }
    
    section {
        padding: 40px 20px !important;
    }
}

/* ===== CRITICAL LOADING STATES ===== */

.skeleton {
    background: linear-gradient(
        90deg,
        rgba(255,255,255,0.05) 25%,
        rgba(255,255,255,0.1) 50%,
        rgba(255,255,255,0.05) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ===== PRINT OPTIMIZATION ===== */

@media print {
    .global-nav, .mobile-menu-toggle, .particle-background, footer {
        display: none !important;
    }
    
    section {
        page-break-inside: avoid;
    }
}