/* ===================================
   CSS Variables & Root Styles
   =================================== */
:root {
    /* Colors */
    --red: #FF1A1A;
    --black: #000000;
    --bg: #000000;
    --surface: #0F0F0F;
    --accent: #E60026;
    --text: #EDEDED;
    --text-muted: #999999;
    --divider: #1A1A1A;
    
    /* Spacing Scale */
    --space-xs: 0.5rem;   /* 8px */
    --space-sm: 0.75rem;  /* 12px */
    --space-md: 1rem;     /* 16px */
    --space-lg: 1.5rem;   /* 24px */
    --space-xl: 2rem;     /* 32px */
    --space-2xl: 3rem;    /* 48px */
    --space-3xl: 4rem;    /* 64px */
    
    /* Typography */
    --font-primary: 'Kanit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(255, 26, 26, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Container */
    --container-max: 1200px;
}

/* ===================================
   Reset & Base Styles
   =================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

@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;
    }
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

ul {
    list-style: none;
}

/* ===================================
   Skip to Content
   =================================== */
.skip-to-content {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--red);
    color: white;
    padding: var(--space-sm) var(--space-md);
    z-index: 10000;
    border-radius: 0 0 var(--radius-md) 0;
    font-weight: 600;
}

.skip-to-content:focus {
    top: 0;
}

/* ===================================
   Container
   =================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

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

/* ===================================
   Header & Navigation
   =================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--divider);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-md);
    position: relative;
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-accent {
    color: var(--red);
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: var(--space-xs);
    z-index: 1001;
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background: var(--red);
}

.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: rgba(15, 15, 15, 0.98);
    backdrop-filter: blur(10px);
    padding: var(--space-3xl) var(--space-lg);
    transition: right var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.nav-menu.active {
    right: 0;
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.nav-link {
    font-size: var(--font-size-lg);
    font-weight: 400;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--red);
}

.btn-nav {
    margin-top: var(--space-md);
    white-space: nowrap;
}

@media (min-width: 768px) {
    .nav {
        padding: var(--space-md) var(--space-lg);
    }
    
    .nav-toggle {
        display: none;
    }
    
    .nav-menu {
        position: static;
        width: auto;
        height: auto;
        background: transparent;
        padding: 0;
        box-shadow: none;
    }
    
    .nav-list {
        flex-direction: row;
        align-items: center;
        gap: var(--space-md);
    }
    
    .nav-link {
        font-size: var(--font-size-sm);
        white-space: nowrap;
    }
    
    .btn-nav {
        margin-top: 0;
        white-space: nowrap;
        padding: var(--space-xs) var(--space-md);
        font-size: var(--font-size-sm);
    }
}

@media (min-width: 1024px) {
    .nav {
        padding: var(--space-md) var(--space-xl);
    }
    
    .nav-list {
        gap: var(--space-lg);
    }
    
    .nav-link {
        font-size: var(--font-size-base);
    }
    
    .btn-nav {
        padding: var(--space-sm) var(--space-lg);
        font-size: var(--font-size-base);
    }
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn:focus-visible {
    outline: 2px solid var(--red);
    outline-offset: 2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--red) 0%, var(--accent) 100%);
    color: white;
}

@media (prefers-reduced-motion: no-preference) {
    .btn-primary:hover {
        transform: scale(1.02);
        box-shadow: var(--shadow-glow);
    }
}

.btn-secondary {
    background: transparent;
    border-color: var(--red);
    color: var(--text);
}

.btn-secondary:hover {
    background: var(--red);
    color: white;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    padding: var(--space-3xl) 0;
    background: linear-gradient(180deg, var(--black) 0%, var(--surface) 100%);
}

.hero-container {
    display: grid;
    gap: var(--space-2xl);
}

.hero-content {
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--text) 0%, var(--red) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-visual {
    width: 100%;
    max-width: 500px;
    height: auto;
    margin: 0 auto;
    display: block;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(255, 26, 26, 0.3));
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) scale(1);
    }
    50% {
        transform: translateY(-25px) scale(1.02);
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero-visual {
        animation: none;
    }
}

@media (min-width: 768px) {
    .hero {
        padding: var(--space-3xl) 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: var(--space-3xl);
    }
    
    .hero-content {
        text-align: left;
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .hero-subtitle {
        margin-left: 0;
        margin-right: 0;
    }
    
    .hero-cta {
        flex-direction: row;
        justify-content: flex-start;
    }
}

@media (min-width: 1200px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

/* ===================================
   Stats Section
   =================================== */
.stats {
    padding: var(--space-2xl) 0;
    background: var(--surface);
}

.stats-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.stat-card {
    text-align: center;
    padding: var(--space-lg);
    background: rgba(15, 15, 15, 0.5);
    backdrop-filter: blur(6px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
}

.stat-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto var(--space-md);
    color: var(--red);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--red);
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* ===================================
   Section Common Styles
   =================================== */
section {
    padding: var(--space-3xl) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    text-align: center;
    margin-bottom: var(--space-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    section {
        padding: 5rem 0;
    }
    
    .section-title {
        font-size: var(--font-size-4xl);
    }
}

/* ===================================
   Testimonials Section (Auto-Scrolling)
   =================================== */
.testimonials {
    background: var(--black);
    overflow: hidden;
    padding: var(--space-3xl) 0;
}

.container-full {
    width: 100%;
    padding: 0 var(--space-md);
}

.container-full .section-title,
.container-full .section-subtitle {
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
}

.testimonials-wrapper {
    overflow: hidden;
    margin-top: var(--space-2xl);
    position: relative;
}

.testimonials-wrapper::before,
.testimonials-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100px;
    z-index: 2;
    pointer-events: none;
}

.testimonials-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--black), transparent);
}

.testimonials-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--black), transparent);
}

.testimonials-track {
    display: flex;
    gap: var(--space-lg);
    animation: scroll-left 60s linear infinite;
    will-change: transform;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.testimonials-track:hover {
    animation-play-state: paused;
}

.testimonial-card {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
    min-width: 350px;
    max-width: 400px;
    flex-shrink: 0;
    transition: all var(--transition-base);
}

@media (prefers-reduced-motion: no-preference) {
    .testimonial-card:hover {
        transform: translateY(-4px) scale(1.02);
        box-shadow: var(--shadow-lg);
        border-color: var(--red);
    }
}

@media (prefers-reduced-motion: reduce) {
    .testimonials-track {
        animation: none;
    }
}

.testimonial-rating {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
}

.testimonial-text {
    color: var(--text);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    font-size: var(--font-size-base);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--divider);
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    flex-shrink: 0;
    object-fit: cover;
    border: 2px solid var(--red);
    background: var(--surface);
}

.author-info {
    flex: 1;
}

.author-name {
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--space-xs);
    font-size: var(--font-size-sm);
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* ===================================
   Live Preview Section
   =================================== */
.live-preview {
    background: var(--surface);
    padding: var(--space-3xl) 0;
}

.iframe-wrapper {
    position: relative;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto var(--space-2xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--divider);
    background: var(--surface);
}

.iframe-wrapper::before {
    content: '';
    display: block;
    padding-top: 56.25%; /* 16:9 aspect ratio */
}

.iframe-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    z-index: 1;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--divider);
    border-top-color: var(--red);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-md);
}

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

.loading-text {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    font-weight: 500;
}

.preview-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    z-index: 2;
}

.preview-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .iframe-wrapper::before {
        padding-top: 70%; /* ปรับให้สูงขึ้นเล็กน้อยบนหน้าจอใหญ่ */
    }
}

@media (min-width: 1024px) {
    .iframe-wrapper::before {
        padding-top: 75%; /* ให้พื้นที่เพียงพอสำหรับเนื้อหา */
    }
}

/* ===================================
   Features Section
   =================================== */
.features {
    background: var(--surface);
}

.features-grid {
    display: grid;
    gap: var(--space-xl);
}

.feature-card {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
    transition: all var(--transition-base);
}

@media (prefers-reduced-motion: no-preference) {
    .feature-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
        border-color: var(--red);
    }
}

.feature-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--space-md);
    color: var(--red);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature-description {
    color: var(--text-muted);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   SEO Gallery Section
   =================================== */
.seo-gallery {
    background: var(--surface);
}

.gallery-grid {
    display: grid;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: var(--black);
    transition: all var(--transition-base);
    cursor: pointer;
}

@media (prefers-reduced-motion: no-preference) {
    .gallery-item:hover {
        transform: scale(1.02);
        box-shadow: var(--shadow-lg);
    }
}

.gallery-image {
    width: 100%;
    aspect-ratio: 3/2;
    object-fit: cover;
    transition: opacity var(--transition-base);
}

.gallery-image[data-src] {
    opacity: 0.5;
}

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

.gallery-caption {
    padding: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.8);
}

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

@media (min-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-actions {
        flex-direction: row;
        justify-content: center;
    }
}

@media (min-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===================================
   Lightbox
   =================================== */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    padding: var(--space-xl);
}

.lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
}

.lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.lightbox-caption {
    text-align: center;
    margin-top: var(--space-md);
    color: var(--text-muted);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255, 26, 26, 0.9);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-fast);
}

.lightbox-close:hover,
.lightbox-close:focus,
.lightbox-prev:hover,
.lightbox-prev:focus,
.lightbox-next:hover,
.lightbox-next:focus {
    background: var(--red);
    transform: scale(1.1);
}

.lightbox-close {
    top: var(--space-lg);
    right: var(--space-lg);
}

.lightbox-prev {
    left: var(--space-lg);
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: var(--space-lg);
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-close svg,
.lightbox-prev svg,
.lightbox-next svg {
    width: 24px;
    height: 24px;
}

/* ===================================
   How It Works Section
   =================================== */
.how-it-works {
    background: var(--black);
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
    max-width: 900px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.timeline-number {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--red) 0%, var(--accent) 100%);
    border-radius: 50%;
    color: white;
}

.timeline-content {
    flex: 1;
}

.timeline-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.timeline-description {
    color: var(--text-muted);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .timeline {
        flex-direction: row;
        align-items: flex-start;
    }
    
    .timeline-item {
        flex-direction: column;
        text-align: center;
        flex: 1;
    }
    
    .timeline-number {
        margin: 0 auto var(--space-md);
    }
}

/* ===================================
   AI Detection Bypass Section
   =================================== */
.ai-bypass {
    background: var(--surface);
}

.ai-bypass-grid {
    display: grid;
    gap: var(--space-lg);
}

.ai-bypass-card {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
    transition: all var(--transition-base);
    text-align: center;
}

@media (prefers-reduced-motion: no-preference) {
    .ai-bypass-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
        border-color: var(--red);
    }
}

.ai-bypass-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    display: block;
}

.ai-bypass-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text);
}

.ai-bypass-description {
    color: var(--text-muted);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .ai-bypass-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .ai-bypass-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===================================
   Website Showcase Section
   =================================== */
.website-showcase {
    background: var(--black);
}

.showcase-grid {
    display: grid;
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.showcase-card {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
    overflow: hidden;
    transition: all var(--transition-base);
}

@media (prefers-reduced-motion: no-preference) {
    .showcase-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-lg);
        border-color: var(--red);
    }
}

.showcase-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--black);
}

.showcase-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.showcase-card:hover .showcase-image {
    transform: scale(1.1);
}

.showcase-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.showcase-card:hover .showcase-overlay {
    opacity: 1;
}

.showcase-content {
    padding: var(--space-lg);
}

.showcase-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text);
}

.showcase-description {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.showcase-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255, 26, 26, 0.1);
    border: 1px solid var(--red);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--red);
    font-weight: 500;
}

.showcase-cta {
    text-align: center;
    padding: var(--space-2xl);
    background: rgba(15, 15, 15, 0.5);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
}

.showcase-cta-text {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text);
}

@media (min-width: 768px) {
    .showcase-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .showcase-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===================================
   Demo Section
   =================================== */
.demo {
    background: var(--black);
}

.demo-card {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
}

.scoring-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-label {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.form-input {
    padding: var(--space-sm) var(--space-md);
    background: var(--black);
    border: 1px solid var(--divider);
    border-radius: var(--radius-md);
    color: var(--text);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--red);
}

.scoring-result {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--divider);
}

.result-score {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.score-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.score-value {
    font-size: 4rem;
    font-weight: 700;
    color: var(--red);
}

.score-max {
    font-size: var(--font-size-xl);
    color: var(--text-muted);
}

.recommendations-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.recommendations-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.recommendations-list li {
    padding: var(--space-sm) var(--space-md);
    background: var(--black);
    border-left: 3px solid var(--red);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
}

/* ===================================
   Pricing Section
   =================================== */
.pricing {
    background: var(--black);
}

.pricing-grid {
    display: grid;
    gap: var(--space-xl);
}

.pricing-card {
    position: relative;
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
    transition: all var(--transition-base);
}

@media (prefers-reduced-motion: no-preference) {
    .pricing-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-lg);
    }
}

.pricing-featured {
    border-color: var(--red);
    box-shadow: var(--shadow-glow);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: var(--space-xl);
    background: var(--red);
    color: white;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--divider);
}

.pricing-plan {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.pricing-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-xs);
}

.price-currency {
    font-size: var(--font-size-xl);
    color: var(--text-muted);
}

.price-amount {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--red);
}

.price-period {
    font-size: var(--font-size-base);
    color: var(--text-muted);
}

.pricing-features {
    margin-bottom: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    color: var(--text-muted);
}

.feature-check {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--red);
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid-two {
        grid-template-columns: repeat(2, 1fr);
        max-width: 1000px;
        margin: 0 auto;
    }
}

@media (min-width: 1200px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pricing-grid-two {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   FAQ Section
   =================================== */
.faq {
    background: var(--surface);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.faq-item {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    border: 1px solid var(--divider);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.faq-question {
    padding: var(--space-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    user-select: none;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--red);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-answer {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--text-muted);
    line-height: 1.7;
}

.faq-item[open] .faq-question {
    color: var(--red);
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background: var(--black);
}

.contact-content {
    display: grid;
    gap: var(--space-3xl);
}

.contact-info {
    text-align: center;
}

.contact-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.contact-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    text-align: left;
    max-width: 500px;
    margin: 0 auto;
}

.contact-benefits li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.benefit-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--red);
}

.contact-methods {
    display: grid;
    gap: var(--space-2xl);
}

.contact-qr {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
    text-align: center;
}

.contact-method-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--text);
}

.qr-code-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.qr-code-image {
    max-width: 250px;
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    border: 2px solid var(--divider);
    background: white;
    padding: var(--space-sm);
}

.line-id {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
    color: var(--text);
}

.line-id svg {
    color: var(--red);
}

.line-id-label {
    color: var(--text-muted);
}

.line-id-value {
    color: var(--red);
    font-size: var(--font-size-xl);
}

.contact-note {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    line-height: 1.6;
}

.divider-or {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin: var(--space-lg) 0;
}

.divider-or::before,
.divider-or::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--divider);
}

.divider-or span {
    padding: 0 var(--space-md);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.contact-form {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
}

.form-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    text-align: center;
}

.form-note {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--space-md);
}

@media (min-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
    
    .contact-info {
        text-align: left;
    }
    
    .contact-benefits {
        margin: 0;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 1024px) {
    .contact-content {
        grid-template-columns: 1fr 1.2fr;
    }
}

/* ===================================
   SEO Resources Section
   =================================== */
.seo-resources {
    background: var(--surface);
}

.seo-resources-grid {
    display: grid;
    gap: var(--space-xl);
}

.seo-resource-card {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(6px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--divider);
}

.resource-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.code-block {
    background: var(--black);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--space-md);
}

.code-block code {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .seo-resources-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--black);
    border-top: 1px solid var(--divider);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    text-align: center;
}

.footer-description {
    margin-top: var(--space-md);
    color: var(--text-muted);
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}

.footer-links {
    display: grid;
    gap: var(--space-xl);
    text-align: center;
}

.footer-heading {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.footer-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-list a {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-list a:hover {
    color: var(--red);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--divider);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 2fr;
        text-align: left;
    }
    
    .footer-brand {
        text-align: left;
    }
    
    .footer-description {
        margin-left: 0;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
        text-align: left;
    }
}

/* ===================================
   Focus Visible Styles
   =================================== */
:focus-visible {
    outline: 2px solid var(--red);
    outline-offset: 2px;
}

/* ===================================
   Utility Classes
   =================================== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}