/* ==========================================================================
   Design System & Base Custom Properties
   ========================================================================== */
:root {
    /* Color Palette — Dark & Bold */
    --color-bg-primary: #0a0a0a;        /* Pure Black */
    --color-bg-secondary: #111111;      /* Dark Surface */
    --color-bg-tertiary: #1a1a1a;       /* Card Surface */
    --color-bg-elevated: #222222;       /* Elevated Surface */
    --color-text-primary: #f5f5f5;      /* White text */
    --color-text-secondary: #a0a0a0;    /* Muted gray */
    --color-text-dim: #666666;          /* Dim text */
    --color-accent: #e31b23;            /* Impact Red */
    --color-accent-dark: #b8151b;       /* Darker Red */
    --color-accent-glow: rgba(227, 27, 35, 0.5);
    --color-secondary-accent: #ff4444;  /* Bright Red */
    --color-line-green: #06c755;        /* LINE Green */
    --color-line-green-hover: #05b04b;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-subtle: rgba(255, 255, 255, 0.04);
    
    /* Typography */
    --font-primary: 'Noto Sans JP', 'Inter', sans-serif;
    --font-number: 'Oswald', sans-serif;
    
    /* Layout & Spacing */
    --container-width: 1200px;
    --header-height: 80px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    /* Shadow & Effects */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow-red: 0 8px 30px rgba(227, 27, 35, 0.4);
    --shadow-glow-red-intense: 0 12px 40px rgba(227, 27, 35, 0.6);
    --shadow-glow-line: 0 10px 25px rgba(6, 199, 85, 0.3);
    
    /* Glass Effect */
    --glass-bg: rgba(17, 17, 17, 0.7);
    --glass-border: rgba(255, 255, 255, 0.06);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================================================
   Typography Helpers
   ========================================================================== */
.Oswald {
    font-family: var(--font-number);
}

.highlight {
    color: var(--color-accent);
    font-weight: 900;
    text-shadow: 0 0 30px rgba(227, 27, 35, 0.3);
}

.highlight-inline {
    color: var(--color-accent);
    font-weight: 900;
    position: relative;
}

.highlight-inline::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    border-radius: 2px;
}

.text-white {
    color: var(--color-text-primary) !important;
}

.font-bold {
    font-weight: 700;
}

.text-highlight {
    color: var(--color-accent);
}

/* ==========================================================================
   Header Styles
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(10, 10, 10, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(10, 10, 10, 0.95);
    height: 70px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-container {
    max-width: var(--container-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    color: var(--color-text-primary);
    text-transform: uppercase;
}

.logo-accent {
    color: var(--color-accent);
    text-shadow: 0 0 20px var(--color-accent-glow);
}

.nav {
    display: flex;
}

.nav-list {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    position: relative;
    padding: 8px 0;
    letter-spacing: 0.03em;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    box-shadow: 0 0 10px var(--color-accent-glow);
    transition: var(--transition-normal);
}

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

.nav-link:hover::after {
    width: 100%;
}

.header-cta {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-text-primary);
    padding: 10px 24px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-glow-red);
    text-transform: uppercase;
}

.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-red-intense);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    z-index: 1010;
}

.mobile-menu-btn .bar {
    width: 100%;
    height: 3px;
    background-color: var(--color-text-primary);
    border-radius: 3px;
    transition: var(--transition-normal);
}

/* ==========================================================================
   Hero Section — Full-Impact Dark Layout
   ========================================================================== */
.hero {
    min-height: 100vh;
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    background-color: var(--color-bg-primary);
}

/* Full-width background image with overlay */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(135deg, rgba(10, 10, 10, 0.92) 0%, rgba(10, 10, 10, 0.6) 50%, rgba(10, 10, 10, 0.85) 100%);
    z-index: 2;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('assets/hero_dark.png');
    background-size: cover;
    background-position: center 20%;
    z-index: 1;
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.08); }
}

/* Red accent glow on hero */
.hero .hero-glow-left {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(227, 27, 35, 0.15) 0%, transparent 70%);
    top: 10%;
    left: -10%;
    z-index: 3;
    pointer-events: none;
}

.hero .hero-glow-right {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(227, 27, 35, 0.1) 0%, transparent 70%);
    bottom: 5%;
    right: -5%;
    z-index: 3;
    pointer-events: none;
}

.hero-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 5;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    background: rgba(227, 27, 35, 0.15);
    color: var(--color-accent);
    font-weight: 800;
    font-size: 0.8rem;
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 28px;
    border: 1px solid rgba(227, 27, 35, 0.3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-title {
    font-size: 3.25rem;
    line-height: 1.3;
    font-weight: 900;
    margin-bottom: 28px;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

.hero-title .highlight {
    display: inline-block;
    margin-top: 10px;
    font-size: 3.5rem;
    background: linear-gradient(135deg, var(--color-accent), #ff4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(0 0 20px rgba(227, 27, 35, 0.4));
}

.hero-lead {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 44px;
    font-weight: 400;
    line-height: 1.8;
    max-width: 640px;
}

.hero-cta-area {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cta-button {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-text-primary);
    padding: 20px 40px;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-glow-red);
    text-align: center;
    max-width: 540px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: 0.6s;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-red-intense);
}

.cta-sub {
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    margin-bottom: 4px;
    opacity: 0.9;
    text-transform: uppercase;
}

.cta-main {
    font-size: 1.25rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cta-note {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    padding-left: 8px;
}

/* Hero image is now used as background — hide old image container */
.hero-image-container {
    display: none;
}

/* ==========================================================================
   Section Header & General Sections
   ========================================================================== */
section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-tag {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 800;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 16px;
    position: relative;
}

.section-tag::before,
.section-tag::after {
    content: '—';
    margin: 0 12px;
    color: var(--color-text-dim);
}

.section-tag.light {
    color: var(--color-secondary-accent);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1.4;
    letter-spacing: -0.01em;
    color: var(--color-text-primary);
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features {
    background-color: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(227, 27, 35, 0.06) 0%, transparent 70%);
    top: -150px;
    right: -150px;
    pointer-events: none;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    background: var(--color-bg-tertiary);
    padding: 44px 32px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(227, 27, 35, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: var(--border-radius-sm);
    background: rgba(227, 27, 35, 0.1);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 28px;
    transition: var(--transition-normal);
    border: 1px solid rgba(227, 27, 35, 0.15);
}

.feature-card:hover .feature-icon-wrapper {
    background: var(--color-accent);
    color: var(--color-text-primary);
    box-shadow: 0 8px 20px var(--color-accent-glow);
}

.feature-card-title {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--color-text-primary);
}

.feature-card-subtitle {
    font-size: 0.85rem;
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: 16px;
}

.feature-card-text {
    font-size: 0.93rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ==========================================================================
   Concept Section
   ========================================================================== */
.concept {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    position: relative;
    overflow: hidden;
}

.concept::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(227, 27, 35, 0.05) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    pointer-events: none;
}

.concept-wrapper {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
}

.concept-title {
    font-size: 2.25rem;
    font-weight: 900;
    line-height: 1.35;
    margin-bottom: 24px;
    color: var(--color-text-primary);
}

.concept-subtitle {
    font-size: 1.15rem;
    line-height: 1.6;
    margin-bottom: 32px;
    color: var(--color-text-secondary);
}

.concept-subtitle strong {
    color: var(--color-accent);
    font-size: 1.25rem;
}

.concept-text {
    color: var(--color-text-secondary);
    margin-bottom: 40px;
}

.concept-text p {
    margin-bottom: 16px;
}

.concept-method {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.method-item {
    display: flex;
    gap: 24px;
    padding: 28px;
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition-normal);
}

.method-item:hover {
    border-color: rgba(227, 27, 35, 0.2);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.method-num {
    font-family: var(--font-number);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    text-shadow: 0 0 20px var(--color-accent-glow);
    flex-shrink: 0;
}

.method-desc h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-text-primary);
}

.method-desc p {
    font-size: 0.93rem;
    color: var(--color-text-secondary);
}

.concept-img {
    width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 1/1;
    object-fit: cover;
    border: 1px solid var(--color-border);
}

/* ==========================================================================
   Courses Section
   ========================================================================== */
.courses {
    background-color: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.courses::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(227, 27, 35, 0.04) 0%, transparent 70%);
    bottom: -200px;
    left: -200px;
    pointer-events: none;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    align-items: stretch;
}

.course-card {
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-normal);
}

.course-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.popular-card {
    border: 2px solid var(--color-accent);
    transform: scale(1.03);
    box-shadow: var(--shadow-glow-red);
    z-index: 10;
    background: linear-gradient(180deg, rgba(227, 27, 35, 0.05) 0%, var(--color-bg-tertiary) 30%);
}

.popular-card:hover {
    box-shadow: var(--shadow-glow-red-intense);
}

.popular-ribbon {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-text-primary);
    font-size: 0.75rem;
    font-weight: 900;
    padding: 6px 16px;
    border-radius: 50px;
    letter-spacing: 0.08em;
    box-shadow: var(--shadow-glow-red);
}

.course-header {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 24px;
    margin-bottom: 28px;
}

.course-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 800;
    background: var(--color-bg-elevated);
    color: var(--color-text-secondary);
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 16px;
    letter-spacing: 0.1em;
}

.course-badge.primary {
    background: rgba(227, 27, 35, 0.15);
    color: var(--color-accent);
}

.course-name {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--color-text-primary);
}

.course-price {
    display: flex;
    align-items: baseline;
    line-height: 1;
    margin-bottom: 8px;
}

.price-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.popular-card .price-num {
    color: var(--color-accent);
    text-shadow: 0 0 20px var(--color-accent-glow);
}

.price-unit {
    font-size: 1.15rem;
    font-weight: 700;
    margin-left: 4px;
    color: var(--color-text-primary);
}

.tax-info {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    margin-left: 8px;
}

.course-price-sub {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    font-weight: 600;
}

.course-body {
    flex-grow: 1;
    margin-bottom: 32px;
}

.course-target {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 20px;
}

.course-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.course-features li {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.5;
}

.course-features i {
    color: var(--color-text-dim);
    margin-top: 3px;
}

.popular-card .course-features i {
    color: var(--color-accent);
}

.course-button {
    display: block;
    width: 100%;
    text-align: center;
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    padding: 14px;
    border-radius: var(--border-radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    transition: var(--transition-normal);
    border: 1px solid var(--color-border);
}

.course-button:hover {
    background: var(--color-text-primary);
    color: var(--color-bg-primary);
}

.primary-btn {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow-red);
    border: none;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-red-intense);
}

/* ==========================================================================
   Coach Section
   ========================================================================== */
.coach {
    background-color: var(--color-bg-primary);
}

.coach-wrapper {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 64px;
    align-items: flex-start;
}

.coach-image-container {
    position: relative;
}

.coach-img {
    width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.chef-badge-overlay {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    color: var(--color-text-primary);
    padding: 12px 20px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-md);
    font-weight: 700;
    font-size: 0.9rem;
    border: 1px solid var(--color-border);
}

.chef-badge-overlay i {
    color: var(--color-accent);
}

.coach-quote {
    font-size: 1.45rem;
    font-weight: 800;
    line-height: 1.4;
    color: var(--color-text-primary);
    margin-bottom: 24px;
    position: relative;
    padding-left: 20px;
    border-left: 4px solid var(--color-accent);
}

.coach-name-title {
    font-size: 1.75rem;
    font-weight: 900;
    margin-bottom: 8px;
    color: var(--color-text-primary);
}

.coach-name-title .en-name {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--color-text-dim);
    margin-left: 8px;
}

.coach-credentials {
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 4px;
}

.coach-qualifications {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    font-weight: 600;
    margin-bottom: 32px;
}

.story-box {
    border-top: 1px solid var(--color-border);
    padding-top: 32px;
}

.story-title {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 20px;
    color: var(--color-text-primary);
}

.story-p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.story-p strong {
    color: var(--color-accent);
}

.chef-feature-box {
    display: grid;
    grid-template-columns: 0.35fr 0.65fr;
    gap: 20px;
    background: var(--color-bg-tertiary);
    padding: 24px;
    border-radius: var(--border-radius-md);
    margin: 28px 0;
    border: 1px solid var(--color-border);
}

.chef-food-img {
    width: 100%;
    border-radius: var(--border-radius-sm);
    aspect-ratio: 1/1;
    object-fit: cover;
}

.chef-feature-desc h5 {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.chef-feature-desc p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ==========================================================================
   Contact & FAQ Section
   ========================================================================== */
.contact {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center top, rgba(227, 27, 35, 0.04) 0%, transparent 60%);
    pointer-events: none;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 80px;
    position: relative;
}

.step-item {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    padding: 44px 24px 32px;
    border-radius: var(--border-radius-md);
    text-align: center;
    position: relative;
    transition: var(--transition-normal);
}

.step-item:hover {
    border-color: rgba(227, 27, 35, 0.2);
}

.step-num {
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-text-primary);
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow-red);
}

.step-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text-primary);
}

.step-text {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* FAQ Accordion */
.faq-container {
    max-width: 800px;
    margin: 0 auto 80px;
}

.faq-heading {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 900;
    margin-bottom: 40px;
    color: var(--color-text-primary);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

.faq-item.active {
    border-color: rgba(227, 27, 35, 0.3);
}

.faq-question {
    width: 100%;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text-primary);
    font-weight: 700;
    font-size: 1rem;
    text-align: left;
}

.faq-icon {
    font-size: 0.9rem;
    color: var(--color-accent);
    transition: var(--transition-normal);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
}

.faq-answer p {
    padding: 0 24px 24px;
    font-size: 0.93rem;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border-subtle);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

/* Conversion CTA Box */
.cta-box {
    max-width: 900px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, rgba(227, 27, 35, 0.08) 100%);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius-lg);
    padding: 60px 40px;
    text-align: center;
    box-shadow: var(--shadow-glow-red);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(227, 27, 35, 0.1) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    pointer-events: none;
}

.cta-box-title {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1.35;
    margin-bottom: 16px;
    color: var(--color-text-primary);
}

.cta-box-text {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
}

.qr-cta-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.qr-code {
    background-color: #ffffff;
    padding: 12px;
    border-radius: var(--border-radius-md);
    width: 150px;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.qr-code img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qr-action {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.line-cta-button {
    background-color: var(--color-line-green);
    color: #ffffff;
    padding: 18px 32px;
    border-radius: var(--border-radius-md);
    font-size: 1.15rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-glow-line);
    transition: var(--transition-normal);
}

.line-cta-button:hover {
    background-color: var(--color-line-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(6, 199, 85, 0.5);
}

.line-cta-button i {
    font-size: 1.5rem;
}

.qr-action-note {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: #050505;
    color: var(--color-text-dim);
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--color-text-primary);
    margin-bottom: 12px;
}

.copyright {
    font-size: 0.8rem;
}

/* ==========================================================================
   Particle / Ambient Effects
   ========================================================================== */
.particle-container {
    position: absolute;
    inset: 0;
    z-index: 4;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(227, 27, 35, 0.5);
    border-radius: 50%;
    animation: floatParticle 8s ease-in-out infinite;
}

@keyframes floatParticle {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    25% {
        opacity: 1;
    }
    75% {
        opacity: 0.6;
    }
    50% {
        transform: translateY(-200px) translateX(50px);
    }
}

/* ==========================================================================
   Animations
   ========================================================================== */
.fade-in-element {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--transition-slow), transform 0.8s var(--transition-slow);
}

.fade-in-element.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(227, 27, 35, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(227, 27, 35, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(227, 27, 35, 0);
    }
}

.pulse-animation {
    animation: pulse 2s infinite;
}

/* Subtle red glow animation for section accents */
@keyframes redGlow {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-title .highlight {
        font-size: 2.75rem;
    }
    .features-grid {
        gap: 20px;
    }
    .concept-wrapper {
        gap: 40px;
    }
    .concept-title {
        font-size: 1.85rem;
    }
    .courses-grid {
        gap: 20px;
    }
    .popular-card {
        transform: scale(1);
    }
    .coach-wrapper {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 80px 0;
    }
    
    /* Header & Nav */
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        padding-top: 60px;
        transition: var(--transition-normal);
        z-index: 999;
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }
    
    .nav-link {
        font-size: 1.25rem;
        color: var(--color-text-primary);
    }
    
    .header-cta {
        display: none;
    }
    
    /* Hero */
    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + 40px);
        padding-bottom: 80px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-title .highlight {
        font-size: 2.25rem;
    }
    
    .hero-lead {
        margin-bottom: 32px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta-area {
        align-items: center;
    }
    
    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* Concept */
    .concept-wrapper {
        grid-template-columns: 1fr;
    }
    
    .concept-image {
        max-width: 400px;
        margin: 0 auto;
        order: -1;
    }
    
    /* Courses */
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    /* Coach */
    .coach-wrapper {
        grid-template-columns: 1fr;
    }
    
    .coach-image-container {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .chef-feature-box {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .chef-feature-img-wrapper {
        max-width: 150px;
        margin: 0 auto;
    }
    
    /* Contact & FAQ */
    .steps-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .step-item {
        padding-top: 32px;
    }
    
    .qr-cta-wrapper {
        flex-direction: column;
        gap: 28px;
    }
    
    .qr-action {
        align-items: center;
    }
    
    .cta-box {
        padding: 40px 20px;
    }
    
    .cta-box-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.85rem;
    }

    .section-tag::before,
    .section-tag::after {
        display: none;
    }
}