/* ============================================
   Variables & Reset
   ============================================ */
:root {
    /* Colors - Minimal & Clean Palette */
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-heading: #0f172a;
    
    --color-primary: #0f172a;      /* Dark Navy as primary */
    --color-accent: #c5a059;       /* Champagne Gold */
    --color-highlight: #f59e0b;    /* Highlight Orange */
    
    --color-border: #e2e8f0;
    --color-white: #ffffff;

    /* Typography */
    --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
    --font-serif: 'Noto Serif JP', serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-base: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    color: var(--color-heading);
    line-height: 1.4;
    font-weight: 700;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

.section-heading {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-heading);
}

.section-lead {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Layout & Utilities
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container--narrow {
    max-width: 800px;
}

.section {
    padding: var(--spacing-xl) 0;
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid--2col {
    grid-template-columns: 1fr 1fr;
    align-items: center;
}

.text-center { text-align: center; }
.mt-8 { margin-top: var(--spacing-md); }

/* ============================================
   Components
   ============================================ */
/* Buttons */
.button {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition-base);
}

.button--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 1.2rem 3rem;
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(15, 23, 42, 0.15);
}

.button--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(15, 23, 42, 0.2);
    background-color: #1e293b;
}

.button--small {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
    border-radius: var(--radius-full);
    background-color: var(--color-bg-alt);
    color: var(--color-heading);
    border: 1px solid var(--color-border);
}

.button--small:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.button--large {
    font-size: 1.3rem;
    padding: 1.5rem 4rem;
}

.button--full {
    width: 100%;
}

/* Images */
.image-rounded {
    border-radius: var(--radius-lg);
}

/* Highlights */
.highlight {
    background: linear-gradient(120deg, transparent 50%, rgba(197, 160, 89, 0.2) 50%);
    font-weight: 700;
    padding: 0 0.2em;
}

.highlight-text {
    color: var(--color-accent);
    display: block;
    margin-top: 0.5rem;
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition-base);
}

.header__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: 0.05em;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    padding-top: 140px; /* Header height + spacing */
    padding-bottom: var(--spacing-xl);
    background-color: var(--color-bg);
    overflow: hidden;
}

.hero__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero__title {
    font-size: clamp(3.5rem, 8vw, 5rem);
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.hero__subtitle {
    font-size: 1.2rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 2rem;
    font-family: var(--font-sans);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero__text {
    margin-bottom: 3rem;
    font-size: 1.05rem;
    color: var(--color-text-light);
}

.hero__sub-text {
    margin-top: 1.5rem;
    font-size: 0.95rem;
    opacity: 0.8;
}

.hero__image-wrapper {
    position: relative;
}

.hero__image {
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.hero__micro {
    display: block;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* ============================================
   Empathy Section
   ============================================ */
.empathy {
    background-color: var(--color-bg-alt);
}

.empathy__content {
    padding-left: var(--spacing-md);
}

.text-body p {
    margin-bottom: 1.5rem;
}

.message-box {
    margin-top: 2rem;
    margin-bottom: 2rem;
    padding: 2rem;
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    border-left: 4px solid var(--color-accent);
}

.list-dots {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-dots li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.list-dots li:last-child {
    margin-bottom: 0;
}

.list-dots li::before {
    content: "•";
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* ============================================
   Gap Section
   ============================================ */
.gap__card {
    background-color: var(--color-bg-alt);
    padding: 3rem;
    border-radius: var(--radius-lg);
    margin: 2rem 0;
}

.gap__card-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-heading);
}

/* ============================================
   Method Section
   ============================================ */
.methods {
    display: grid;
    gap: var(--spacing-xl);
}

.method-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.method-card--reverse {
    direction: rtl; /* Simple way to reverse grid visual order */
}

.method-card--reverse > * {
    direction: ltr; /* Reset content direction */
}

.method-card__image img {
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    height: 400px;
    width: 100%;
    object-fit: cover;
}

.method-card__label {
    display: inline-block;
    padding: 0.4rem 1rem;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text-light);
}

.method-card__title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.method-card__subtitle {
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

/* ============================================
   Curriculum Section
   ============================================ */
.curriculum {
    background-color: var(--color-bg-alt);
}

.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.curriculum-item {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.curriculum-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border-color: var(--color-accent);
}

.curriculum-item__num {
    font-family: var(--font-serif);
    font-size: 3rem;
    color: var(--color-bg-alt);
    font-weight: 700;
    line-height: 1;
    display: block;
    margin-bottom: 1rem;
    -webkit-text-stroke: 1px var(--color-border);
}

.curriculum-item__title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.elements-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.elements-tags span {
    font-size: 0.8rem;
    padding: 0.2rem 0.6rem;
    background-color: var(--color-bg-alt);
    border-radius: 4px;
    color: var(--color-text-light);
}

/* ============================================
   Authority Section
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.stat-item__num {
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-item__unit {
    font-size: 1rem;
    font-family: var(--font-sans);
    font-weight: 500;
    margin-left: 0.5rem;
}

.stat-item__label {
    margin-top: 0.5rem;
    color: var(--color-text-light);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.stat-item__loc span {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    margin: 0.2rem;
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
}

.instructors {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.instructor {
    text-align: center;
}

.instructor__img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 4px solid var(--color-white);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.instructor__role {
    font-size: 0.85rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.instructor__bio {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.authority__message {
    margin-top: var(--spacing-lg);
    font-size: 1.2rem;
    font-weight: 500;
}

/* ============================================
   Philosophy Section
   ============================================ */
.philosophy {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.philosophy .section-title,
.philosophy .section-heading {
    color: var(--color-white);
}

.quote {
    margin: 3rem 0;
    padding: 3rem;
    background-color: rgba(255,255,255,0.05);
    border-radius: var(--radius-md);
}

.quote__text {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.quote__author {
    font-size: 0.9rem;
    opacity: 0.7;
}

.philosophy__cta {
    margin: 3rem 0;
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
}

.philosophy__heading {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.philosophy__final {
    font-size: 1.2rem;
    font-weight: 500;
    margin-top: 2rem;
}

/* ============================================
   Final CTA
   ============================================ */
.cta {
    background-color: var(--color-white);
}

.cta__action {
    margin-top: 2rem;
}

.cta__micro {
    margin-top: 1.5rem;
    color: var(--color-text-light);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--color-bg-alt);
    padding: 3rem 0;
    border-top: 1px solid var(--color-border);
}

.footer__logo {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer__copy {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

/* ============================================
   Fixed CTA (Mobile)
   ============================================ */
.fixed-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1rem;
    background-color: var(--color-white);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.05);
    z-index: 1000;
}

/* ============================================
   Animation Classes
   ============================================ */
.fade-in {
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

.in-view {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__image-wrapper {
        display: none;
    }

    .hero__cta {
        margin-bottom: 2rem;
    }

    .grid--2col {
        grid-template-columns: 1fr;
    }

    .empathy__image-area {
        order: -1;
    }

    .empathy__content {
        padding-left: 0;
        text-align: center;
    }

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

    .method-card {
        grid-template-columns: 1fr;
    }

    .method-card--reverse {
        direction: ltr;
    }

    .curriculum-grid, 
    .stats-grid,
    .instructors {
        grid-template-columns: 1fr;
    }

    .fixed-cta {
        display: block;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
}