/* ===== RESET & VARIABLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Original Color Palette */
    --orange: #ff6b35;
    --orange-light: #ff8c5a;
    --orange-dark: #e55a2b;
    --orange-pale: #fff4f1;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;

    /* Shadows */
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
    --font-mono: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;

    /* Z-index layers */
    --z-header: 100;
    --z-overlay: 999;
    --z-modal: 1000;
    --z-tooltip: 1100;
}

/* ===== BASE STYLES ===== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--white);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== LAYOUT COMPONENTS ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: sticky;
    top: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    z-index: var(--z-header);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--orange);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.logo:hover {
    color: var(--orange-dark);
}

@media (min-width: 640px) {
    .logo {
        font-size: 1.25rem;
    }
}

/* Desktop Navigation */
.nav.desktop-nav {
    display: none;
    gap: var(--space-xl);
    align-items: center;
}

@media (min-width: 769px) {
    .nav.desktop-nav {
        display: flex;
    }
}

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 400;
    transition: all var(--transition-normal);
    position: relative;
    padding: var(--space-sm) 0;
    font-size: 1rem;
}

.nav-link:hover {
    color: var(--orange);
}

.nav-link.active {
    color: var(--orange);
    font-weight: 500;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--orange);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--gray-700);
    transition: all var(--transition-normal);
    touch-action: manipulation;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    border-radius: var(--radius-sm);
}

.mobile-menu-btn:hover {
    color: var(--orange);
    background-color: var(--gray-50);
}

.mobile-menu-btn:active {
    background-color: var(--gray-100);
    transform: scale(0.95);
}

.mobile-menu-btn:focus {
    outline: 2px solid var(--orange);
    outline-offset: 2px;
}

@media (min-width: 769px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* Mobile Navigation Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-overlay);
    animation: fadeIn var(--transition-slow) ease forwards;
}

/* Mobile Navigation Panel */
.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 280px;
    max-width: 80vw;
    background: var(--white);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-modal);
    padding: var(--space-xl) var(--space-md);
    overflow-y: auto;
    animation: slideInRight var(--transition-slow) ease forwards;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    padding: var(--space-lg) var(--space-md);
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    min-height: 48px;
    touch-action: manipulation;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    font-size: 16px;
    /* Prevent zoom on iOS */
}

.mobile-nav-link:hover {
    background-color: var(--gray-50);
    color: var(--orange);
}

.mobile-nav-link.active {
    background-color: var(--orange);
    color: var(--white);
}

.mobile-nav-link:active {
    background-color: var(--orange-pale);
}

/* Safe area support for iOS */
@supports (padding: max(0px)) {
    .mobile-nav {
        padding-top: max(var(--space-xl), env(safe-area-inset-top));
        padding-right: max(var(--space-md), env(safe-area-inset-right));
        padding-left: max(var(--space-md), env(safe-area-inset-left));
    }
}

/* ===== SUB-NAVIGATION ===== */
.sub-nav {
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.sub-nav::-webkit-scrollbar {
    display: none;
}

.sub-nav-content {
    display: flex;
    gap: var(--space-md);
    padding: 0 var(--space-md);
    min-width: max-content;
}

@media (min-width: 640px) {
    .sub-nav-content {
        gap: var(--space-xl);
        padding: 0 var(--space-xl);
    }
}

.sub-nav-link {
    padding: var(--space-md) 0;
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 400;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-normal);
    white-space: nowrap;
    font-size: 0.875rem;
}

@media (min-width: 768px) {
    .sub-nav-link {
        font-size: 1rem;
    }
}

.sub-nav-link:hover {
    color: var(--orange);
}

.sub-nav-link.active {
    color: var(--orange);
    border-bottom-color: var(--orange);
    font-weight: 500;
}

/* ===== MAIN CONTENT ===== */
.main {
    min-height: calc(100vh - 4rem);
}

/* ===== PAGE SECTIONS ===== */
.page {
    padding: var(--space-xl) 0;
    min-height: 60vh;
}

@media (min-width: 768px) {
    .page {
        padding: var(--space-3xl) 0;
    }
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--gray-900);
    letter-spacing: -0.025em;
    line-height: 1.1;
}

@media (min-width: 768px) {
    .page-title {
        font-size: 2.5rem;
        margin-bottom: var(--space-lg);
    }
}

.page-subtitle {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .page-subtitle {
        font-size: 1.125rem;
        margin-bottom: var(--space-2xl);
    }
}

/* ===== HERO SECTION ===== */
.hero {
    padding: var(--space-2xl) 0;
    text-align: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

@media (min-width: 768px) {
    .hero {
        padding: 6rem 0;
    }
}

.hero-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
    color: var(--gray-900);
    line-height: 1.1;
    letter-spacing: -0.025em;
}

@media (min-width: 640px) {
    .hero-title {
        font-size: 3rem;
    }
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
        margin-bottom: var(--space-lg);
    }
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    max-width: 90%;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

@media (min-width: 640px) {
    .hero-subtitle {
        font-size: 1.125rem;
        max-width: 600px;
        margin-bottom: 2.5rem;
    }
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
}

@media (min-width: 640px) {
    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }
}

/* ===== BUTTONS ===== */
.btn {
    padding: var(--space-lg) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    display: inline-block;
    text-align: center;
    min-width: 140px;
    touch-action: manipulation;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

@media (min-width: 640px) {
    .btn {
        padding: var(--space-lg) var(--space-xl);
        font-size: 1rem;
    }
}

.btn-primary {
    background: var(--orange);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: var(--orange-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-900);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
}

.btn-secondary:hover {
    border-color: var(--gray-400);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary:active {
    transform: translateY(0);
    box-shadow: var(--shadow);
}

/* ===== GRIDS & LAYOUTS ===== */
.content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

@media (min-width: 640px) {
    .content-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .content-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--space-xl);
        margin-top: var(--space-2xl);
    }
}

/* ===== CARDS ===== */
.card {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    background: var(--white);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow);
}

@media (min-width: 768px) {
    .card {
        padding: var(--space-xl);
    }
}

.card:hover {
    border-color: var(--orange);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--gray-900);
}

@media (min-width: 768px) {
    .card-title {
        font-size: 1.25rem;
        margin-bottom: var(--space-md);
    }
}

.card-text {
    color: var(--gray-600);
    line-height: 1.6;
    font-size: 0.875rem;
}

@media (min-width: 768px) {
    .card-text {
        font-size: 1rem;
    }
}

.card-link {
    color: var(--orange);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-normal);
}

.card-link:hover {
    color: var(--orange-dark);
}

/* ===== CODE BLOCKS ===== */
.code-section {
    margin: var(--space-xl) 0;
}

.code-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--gray-900);
}

.code-container {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow);
}

pre[class*="language-"] {
    margin: 0;
    padding: var(--space-lg);
    font-size: 0.875rem;
    line-height: 1.5;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

pre[class*="language-"]::-webkit-scrollbar {
    display: none;
}

@media (min-width: 768px) {
    pre[class*="language-"] {
        padding: var(--space-xl);
        font-size: 0.9rem;
    }
}

code[class*="language-"] {
    font-family: var(--font-mono);
}

/* ===== DEMO SECTIONS ===== */
.demo-section {
    padding: var(--space-2xl) 0;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

@media (min-width: 768px) {
    .demo-section {
        padding: var(--space-3xl) 0;
    }
}

.demo-content {
    max-width: 800px;
    margin: 0 auto;
}

.demo-card {
    padding: var(--space-xl);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    margin-bottom: var(--space-xl);
}

.demo-card:last-child {
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .demo-card {
        padding: 2.5rem;
    }
}

.demo-card-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--orange);
    font-size: 1.5rem;
    font-weight: 600;
}

@media (min-width: 768px) {
    .demo-card-title {
        font-size: 1.75rem;
        margin-bottom: var(--space-xl);
    }
}

.demo-card-subtitle {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--gray-600);
    font-size: 1rem;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .demo-card-subtitle {
        font-size: 1.125rem;
        margin-bottom: var(--space-xl);
    }
}

.demo-card-note {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--gray-600);
    font-size: 0.875rem;
    font-style: italic;
}

@media (min-width: 768px) {
    .demo-card-note {
        font-size: 1rem;
        margin-bottom: var(--space-xl);
    }
}

.demo-card.component-approach,
.demo-card.enhancement-approach {
    border-left: 4px solid var(--orange);
}

/* ===== FEATURES SECTION ===== */
.features-section {
    background: var(--white);
}

.philosophy-section {
    padding: var(--space-3xl) 0;
    background: var(--orange);
    color: var(--white);
    text-align: center;
}

/* ===== FOOTER ===== */
.footer {
    border-top: 1px solid var(--gray-200);
    padding: var(--space-xl) 0;
    margin-top: var(--space-2xl);
    background: var(--gray-50);
}

@media (min-width: 768px) {
    .footer {
        padding: var(--space-2xl) 0;
        margin-top: var(--space-3xl);
    }
}

.footer-content {
    text-align: center;
    color: var(--gray-600);
    font-size: 0.875rem;
}

@media (min-width: 768px) {
    .footer-content {
        font-size: 1rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}



/* ===== LOADING STATES ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px;
    border: 2px solid var(--orange);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ===== PRISM CODE HIGHLIGHTING ===== */
.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
    color: #999;
}

.token.punctuation {
    color: #ccc;
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
    color: var(--orange);
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
    color: #90ee90;
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string {
    color: #9a6e3a;
}

.token.atrule,
.token.attr-value,
.token.keyword {
    color: #07a;
}

.token.function,
.token.class-name {
    color: #dd4a68;
}

/* ===== UTILITIES ===== */
.text-center {
    text-align: center;
}

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

.text-right {
    text-align: right;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--space-xs);
}

.mb-2 {
    margin-bottom: var(--space-sm);
}

.mb-3 {
    margin-bottom: var(--space-md);
}

.mb-4 {
    margin-bottom: var(--space-lg);
}

.mb-5 {
    margin-bottom: var(--space-xl);
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--space-xs);
}

.mt-2 {
    margin-top: var(--space-sm);
}

.mt-3 {
    margin-top: var(--space-md);
}

.mt-4 {
    margin-top: var(--space-lg);
}

.mt-5 {
    margin-top: var(--space-xl);
}

/* ===== RESPONSIVE UTILITIES ===== */
.hidden-mobile {
    display: none;
}

@media (min-width: 769px) {
    .hidden-mobile {
        display: block;
    }

    .hidden-desktop {
        display: none;
    }
}

/* ===== TOUCH OPTIMIZATIONS ===== */
/* Prevent body scroll when mobile menu is open */
body.mobile-menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* Touch-friendly interactions */
[onclick],
.btn,
button,
.nav-link,
.mobile-nav-link {
    touch-action: manipulation;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

/* Better touch targets on mobile */
@media (max-width: 768px) {

    [onclick],
    .btn,
    button {
        min-height: 44px;
        font-size: 16px;
        /* Prevent zoom on iOS */
    }
}

/* Remove hover effects on touch devices */
@media (hover: none) and (pointer: coarse) {
    .card:hover {
        transform: none;
        border-color: var(--gray-200);
        box-shadow: var(--shadow);
    }

    .btn:hover {
        transform: none;
    }

    .mobile-nav-link:hover {
        background-color: transparent;
        color: var(--gray-700);
    }

    .mobile-nav-link.active:hover {
        background-color: var(--orange);
        color: var(--white);
    }
}

/* ===== ACCESSIBILITY ===== */
/* Focus styles */
*:focus {
    outline-offset: 2px;
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .fade-in {
        animation: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --gray-600: #000000;
        --gray-700: #000000;
        --gray-900: #000000;
    }
}

/* Add this to your existing CSS to debug and ensure mobile menu works */

/* Force mobile menu button to show on small screens */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        background: none;
        border: none;
        cursor: pointer;
        font-size: 1.5rem;
        color: var(--gray-700);
        border-radius: 4px;
        transition: all 0.2s ease;
    }

    .mobile-menu-btn:active {
        background-color: var(--gray-100);
        transform: scale(0.95);
    }

    /* Force desktop nav to hide on mobile */
    .nav.desktop-nav {
        display: none !important;
    }
}

/* Ensure desktop nav shows on larger screens */
@media (min-width: 769px) {
    .nav.desktop-nav {
        display: flex !important;
        gap: 2rem;
        align-items: center;
    }

    .mobile-menu-btn {
        display: none !important;
    }

    .mobile-nav-overlay,
    .mobile-nav {
        display: none !important;
    }
}

/* Mobile overlay and nav panel */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    animation: fadeIn 0.3s ease forwards;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 280px;
    max-width: 80vw;
    background: white;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 2rem 1rem;
    overflow-y: auto;
    animation: slideInRight 0.3s ease forwards;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    min-height: 48px;
    font-size: 16px;
}

.mobile-nav-link:hover {
    background-color: var(--gray-50);
    color: var(--orange);
}

.mobile-nav-link.active {
    background-color: var(--orange);
    color: white;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}