/**
 * Mobile Enhancements CSS
 * Advanced mobile-first optimizations for SmartAITest.com
 * 2026
 */

/* ============================================
   0. GLOBAL WORD BREAK PREVENTION
   Prevent words from splitting in the middle
   ============================================ */
body, html {
    word-break: keep-all;
    overflow-wrap: break-word;
    hyphens: none;
    -webkit-hyphens: none;
    -ms-hyphens: none;
}

/* Ensure all text elements don't break mid-word */
p, h1, h2, h3, h4, h5, h6,
span, a, li, td, th,
label, button, div,
.text-sm, .text-base, .text-lg, .text-xl,
.text-2xl, .text-3xl, .text-4xl, .text-5xl,
.kick-heading, .kick-gradient-text {
    word-break: keep-all;
    overflow-wrap: break-word;
    hyphens: none;
    -webkit-hyphens: none;
}

/* Special handling for long URLs or codes - allow breaking */
a[href^="http"], code, pre, .code-block {
    word-break: break-all;
    overflow-wrap: anywhere;
}

/* ============================================
   0.5. MOBILE NAVBAR POSITIONING FIX
   Force navbar to left side on mobile
   ============================================ */
@media screen and (max-width: 768px) {
    nav.kick-navbar,
    .kick-navbar,
    #floating-navbar {
        position: fixed !important;
        top: auto !important;
        bottom: 20px !important;
        left: 16px !important;
        right: auto !important;
        transform: none !important;
        -webkit-transform: none !important;
        width: auto !important;
        max-width: calc(100vw - 32px) !important;
    }
}

/* ============================================
   1. TOUCH RIPPLE EFFECT
   Material Design-inspired touch feedback
   ============================================ */
.touch-ripple {
    position: relative;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
}

.touch-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: translate(-50%, -50%);
    opacity: 0;
    pointer-events: none;
}

.touch-ripple:active::after {
    width: 200%;
    height: 200%;
    opacity: 1;
    transition: width 0.3s ease-out, height 0.3s ease-out, opacity 0.3s ease-out;
}

.touch-ripple-dark::after {
    background: rgba(0, 0, 0, 0.15);
}

/* ============================================
   2. MOBILE SCROLL OPTIMIZATION
   Smooth scrolling & scroll snap
   ============================================ */

/* Smooth momentum scrolling for iOS */
.scroll-container,
.mobile-scroll {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    overscroll-behavior: contain;
}

/* Horizontal scroll snap for carousels */
.scroll-snap-x {
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.scroll-snap-x::-webkit-scrollbar {
    display: none;
}

.scroll-snap-item {
    scroll-snap-align: start;
    scroll-snap-stop: always;
}

/* Prevent body scroll when modal is open */
body.modal-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

/* ============================================
   3. MOBILE-FIRST SKELETON LOADING
   Shimmer effect for loading states
   ============================================ */
.skeleton {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.1) 25%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.1) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
    border-radius: 8px;
}

.skeleton-light {
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
}

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

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
}

.skeleton-circle {
    border-radius: 50%;
}

.skeleton-card {
    min-height: 200px;
}

/* ============================================
   4. BOTTOM SHEET (iOS-style)
   Native-feel modal from bottom
   ============================================ */
.bottom-sheet {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    background: rgba(15, 12, 41, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px 24px 0 0;
    padding: 20px 20px calc(20px + env(safe-area-inset-bottom, 0px));
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: 90vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.bottom-sheet.active {
    transform: translateY(0);
}

.bottom-sheet-handle {
    width: 40px;
    height: 5px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    margin: 0 auto 20px;
}

.bottom-sheet-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.bottom-sheet-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   5. MOBILE FORM ENHANCEMENTS
   Better input UX on mobile
   ============================================ */

/* Larger touch targets for form elements */
@media (pointer: coarse) {
    input[type="text"],
    input[type="email"],
    input[type="date"],
    input[type="number"],
    input[type="tel"],
    select,
    textarea {
        min-height: 48px;
        padding: 14px 16px;
        font-size: 16px; /* Prevents iOS zoom */
    }

    /* Radio and checkbox containers */
    label:has(input[type="radio"]),
    label:has(input[type="checkbox"]) {
        min-height: 48px;
        display: flex;
        align-items: center;
        padding: 8px 0;
    }

    /* Custom styled radio/checkbox */
    input[type="radio"],
    input[type="checkbox"] {
        width: 24px;
        height: 24px;
        margin-right: 12px;
    }
}

/* Input focus glow on mobile */
@media (max-width: 768px) {
    input:focus,
    textarea:focus,
    select:focus {
        outline: none;
        box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.3);
    }
}

/* Date input styling (mobile native picker) */
input[type="date"] {
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.5)' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='16' y1='2' x2='16' y2='6'%3E%3C/line%3E%3Cline x1='8' y1='2' x2='8' y2='6'%3E%3C/line%3E%3Cline x1='3' y1='10' x2='21' y2='10'%3E%3C/line%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 44px;
}

/* ============================================
   6. SWIPE GESTURES SUPPORT
   Enable native-feel swipe interactions
   ============================================ */
.swipeable {
    touch-action: pan-x pan-y;
    user-select: none;
    -webkit-user-select: none;
}

.swipe-to-dismiss {
    touch-action: pan-y;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.swipe-to-dismiss.swiping {
    transition: none;
}

/* ============================================
   7. MOBILE NAVIGATION PATTERNS
   Thumb-friendly bottom navigation
   ============================================ */
.mobile-nav-bottom {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(15, 12, 41, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-around;
    padding: 8px 0 calc(8px + env(safe-area-inset-bottom, 0px));
    z-index: 1000;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 16px;
    min-width: 64px;
    min-height: 48px;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 11px;
    transition: color 0.2s ease;
}

.mobile-nav-item.active {
    color: #8B5CF6;
}

.mobile-nav-item svg,
.mobile-nav-item .icon {
    width: 24px;
    height: 24px;
    margin-bottom: 4px;
}

/* ============================================
   8. PULL TO REFRESH STYLING
   ============================================ */
.pull-indicator {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    padding: 16px;
    z-index: 9999;
    transition: transform 0.2s ease;
}

.pull-indicator.visible {
    transform: translateX(-50%) translateY(20px);
}

.pull-indicator-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(139, 92, 246, 0.2);
    border-top-color: #8B5CF6;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   9. MOBILE CARD INTERACTIONS
   Touch-optimized card components
   ============================================ */
@media (pointer: coarse) {
    .card-interactive {
        transition: transform 0.15s ease, box-shadow 0.15s ease;
    }

    .card-interactive:active {
        transform: scale(0.98);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    /* Disable hover effects on touch devices */
    .card-interactive:hover {
        transform: none;
        box-shadow: none;
    }
}

/* ============================================
   10. FLOATING ACTION BUTTON (FAB)
   Mobile-friendly action trigger
   ============================================ */
.fab {
    position: fixed;
    bottom: calc(80px + env(safe-area-inset-bottom, 0px));
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #8B5CF6, #EC4899);
    color: white;
    border: none;
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fab:active {
    transform: scale(0.9);
    box-shadow: 0 3px 10px rgba(139, 92, 246, 0.3);
}

.fab svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   11. MOBILE TYPOGRAPHY SCALING
   Fluid typography for mobile readability
   ============================================ */
@media (max-width: 480px) {
    html {
        font-size: 15px;
    }

    h1, .text-4xl, .text-5xl {
        font-size: 1.75rem !important;
        line-height: 1.2;
    }

    h2, .text-3xl {
        font-size: 1.5rem !important;
    }

    h3, .text-2xl {
        font-size: 1.25rem !important;
    }

    p, .text-base {
        font-size: 1rem;
        line-height: 1.6;
    }

    .text-sm {
        font-size: 0.875rem;
    }
}

/* Small phones (iPhone SE, etc) */
@media (max-width: 375px) {
    html {
        font-size: 14px;
    }

    .kick-btn {
        padding: 12px 20px !important;
        font-size: 14px !important;
    }

    .kick-input {
        padding: 14px 16px !important;
    }
}

/* ============================================
   12. MOBILE SPACING UTILITIES
   Consistent spacing on mobile
   ============================================ */
@media (max-width: 768px) {
    .mobile-px-4 { padding-left: 16px; padding-right: 16px; }
    .mobile-px-5 { padding-left: 20px; padding-right: 20px; }
    .mobile-py-4 { padding-top: 16px; padding-bottom: 16px; }
    .mobile-py-6 { padding-top: 24px; padding-bottom: 24px; }
    .mobile-gap-3 { gap: 12px; }
    .mobile-gap-4 { gap: 16px; }
    .mobile-mb-4 { margin-bottom: 16px; }
    .mobile-mb-6 { margin-bottom: 24px; }
    .mobile-mt-4 { margin-top: 16px; }
    .mobile-mt-6 { margin-top: 24px; }

    /* Container padding */
    .container,
    .max-w-4xl,
    .max-w-5xl,
    .max-w-6xl {
        padding-left: 16px;
        padding-right: 16px;
    }
}

/* ============================================
   13. MOBILE VISIBILITY UTILITIES
   ============================================ */
@media (max-width: 768px) {
    .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
    .show-mobile-only { display: none !important; }
}

/* ============================================
   14. LAZY LOADING PLACEHOLDER
   Low-res image placeholders
   ============================================ */
.lazy-image {
    background-color: rgba(139, 92, 246, 0.1);
    transition: opacity 0.3s ease;
}

.lazy-image.loading {
    opacity: 0.5;
}

.lazy-image.loaded {
    opacity: 1;
}

/* ============================================
   15. MOBILE KEYBOARD HANDLING
   Adjust layout when keyboard is visible
   ============================================ */
@media (max-height: 500px) and (max-width: 768px) {
    /* Keyboard likely visible - adjust fixed elements */
    .kick-navbar {
        display: none;
    }

    .kick-sticky-bar {
        padding: 8px 12px;
    }

    .bottom-sheet {
        max-height: 70vh;
    }
}

/* ============================================
   16. MOBILE PERFORMANCE OPTIMIZATIONS
   GPU acceleration & will-change hints
   ============================================ */
@media (pointer: coarse) {
    /* GPU accelerate animated elements */
    .kick-btn,
    .card-interactive,
    .bottom-sheet {
        will-change: transform;
        transform: translateZ(0);
        backface-visibility: hidden;
    }
    /* Note: kick-navbar excluded - uses left/right positioning on mobile */

    /* Disable complex shadows on low-end devices */
    @media (prefers-reduced-motion: reduce) {
        * {
            box-shadow: none !important;
        }
    }
}

/* ============================================
   17. ORIENTATION HANDLING
   ============================================ */
@media (orientation: landscape) and (max-height: 500px) {
    /* Landscape phone mode */
    .hero-section {
        min-height: auto;
        padding-top: 60px;
        padding-bottom: 60px;
    }

    .kick-navbar {
        top: 10px;
        bottom: auto;
    }
}

/* ============================================
   18. NOTCH/DYNAMIC ISLAND SAFE AREAS
   ============================================ */
@supports (padding-top: env(safe-area-inset-top)) {
    .safe-top {
        padding-top: env(safe-area-inset-top);
    }

    .safe-bottom {
        padding-bottom: env(safe-area-inset-bottom);
    }

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

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

    .safe-all {
        padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    }
}

/* ============================================
   19. MOBILE SHARE SHEET
   Native-feel share interface
   ============================================ */
.share-sheet {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding: 20px;
}

.share-sheet-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    text-decoration: none;
    font-size: 12px;
    min-height: 80px;
    transition: background 0.2s ease;
}

.share-sheet-item:active {
    background: rgba(255, 255, 255, 0.15);
}

.share-sheet-item .icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   20. DARK/LIGHT MODE MOBILE ADJUSTMENTS
   ============================================ */
@media (prefers-color-scheme: light) {
    .bottom-sheet {
        background: rgba(255, 255, 255, 0.98);
    }

    .bottom-sheet-handle {
        background: rgba(0, 0, 0, 0.2);
    }

    .mobile-nav-bottom {
        background: rgba(255, 255, 255, 0.95);
        border-top-color: rgba(0, 0, 0, 0.1);
    }

    .mobile-nav-item {
        color: rgba(0, 0, 0, 0.5);
    }

    .mobile-nav-item.active {
        color: #8B5CF6;
    }
}

/* ============================================
   CRITICAL: FINAL MOBILE NAVBAR OVERRIDE
   This MUST be at the end of the file to win CSS cascade
   ============================================ */
@media screen and (max-width: 768px) {
    html body nav.kick-navbar,
    html body .kick-navbar,
    html body #floating-navbar,
    nav[class*="kick-navbar"],
    [id="floating-navbar"] {
        position: fixed !important;
        top: auto !important;
        bottom: calc(20px + env(safe-area-inset-bottom, 0px)) !important;
        left: 16px !important;
        right: auto !important;
        transform: none !important;
        -webkit-transform: none !important;
        -ms-transform: none !important;
        width: auto !important;
        max-width: calc(100vw - 32px) !important;
        margin: 0 !important;
    }
}