/* style.css - Wellnethy Premium Cultural Brand Re-design */

/* -------------------------------------
   CSS Variables (Design System)
-------------------------------------- */
:root {
    /* Colors as defined in plan */
    --color-offwhite: #FDFDFD;
    --color-kinari: #F3F0E6;
    --color-greige: #D5D1CB;
    
    --color-charcoal: #333333;
    --color-sumi: #1A1A1A;
    
    --color-ai: #1B2A47;     /* Deep Indigo */
    --color-seiji: #4A6B69;  /* Calm Blue-Green */
    --color-shingei: #BF9C59;/* Dull Gold */

    /* Typography */
    /* English headings: elegant, sharp */
    --font-en-display: 'Cinzel', serif;
    /* English accents/body (dates, small labels): classy */
    --font-en-body: 'Playfair Display', serif;
    
    /* Japanese headings: premium, cultural, emotional */
    --font-ja-display: 'Shippori Mincho', serif;
    /* Japanese body: highly readable, clean, modern */
    --font-ja-body: 'Zen Kaku Gothic New', sans-serif;

    /* Spacing */
    --spacing-xxs: 4px;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 96px;
    --spacing-xxl: 160px;

    /* Transitions */
    --transition-slow: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-medium: 0.4s ease-out;
    --transition-bg: background-color 0.4s ease, color 0.4s ease;

    /* Background Images */
    --bg-img-hero: url('assets/backgrounds/pexels-frank-lee-2903359-31557463.jpg');
    --bg-img-thoughts: url('assets/backgrounds/pexels-g-n-403098-29518222.jpg');
    --bg-img-company: url('assets/backgrounds/pexels-lana-154214216-33428851.jpg');
}

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

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

body {
    background-color: var(--color-offwhite);
    color: var(--color-charcoal);
    font-family: var(--font-ja-body);
    font-weight: 400; /* Increased from 300 to 400 for better legibility against backgrounds */
    line-height: 1.8;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* Helper Classes */
.en {
    font-family: var(--font-en-body);
    font-style: italic;
    letter-spacing: 0.02em;
}

h1.logo, .hero-company, .en {
  letter-spacing: 0.1em;
}

.pc-only {
    display: none;
}
@media (min-width: 768px) {
    .pc-only { display: block; }
    .sp-only { display: none; }
}

.bg-kinari {
    background-color: var(--color-kinari);
}

/* Background Parallax Utilities */
.bg-parallax {
    position: relative;
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    z-index: 1;
}

.bg-parallax::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    pointer-events: none;
}

.bg-hero {
    background-image: var(--bg-img-hero);
}
.bg-hero::before {
    /* Gradient to ensure white/light text or dark text is readable. Let's use a light overly to keep the offwhite theme */
    background: linear-gradient(135deg, rgba(253,253,253,0.92) 0%, rgba(243,240,230,0.85) 100%);
}

.bg-thoughts {
    background-image: var(--bg-img-thoughts);
}
.bg-thoughts::before {
    background: linear-gradient(to bottom, rgba(253,253,253,1) 0%, rgba(253,253,253,0.85) 30%, rgba(253,253,253,0.92) 100%);
}

.bg-company {
    background-image: var(--bg-img-company);
}
.bg-company::before {
    background: rgba(253, 253, 253, 0.92);
}

.section {
    padding: var(--spacing-xl) 0;
}
@media (min-width: 768px) {
    .section {
        padding: var(--spacing-xxl) 0;
    }
}

.section-inner {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}
.section-inner.narrow {
    max-width: 800px;
}

/* -------------------------------------
   Typography Basics
-------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-ja-display);
    color: var(--color-sumi);
    font-weight: 500;
    line-height: 1.4;
}

.section-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.1em;
}
@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}

.section-subtitle {
    display: block;
    font-family: var(--font-en-display);
    color: var(--color-shingei);
    font-size: 0.875rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.text-link {
    display: inline-block;
    position: relative;
    padding-bottom: 2px;
    color: var(--color-ai);
    font-weight: 400;
}
.text-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-ai);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}
.text-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-family: var(--font-ja-body);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: var(--transition-bg);
}

.btn-outline {
    border: 1px solid var(--color-charcoal);
    color: var(--color-charcoal);
    background: transparent;
}
.btn-outline:hover {
    background: var(--color-charcoal);
    color: var(--color-offwhite);
}

/* -------------------------------------
   Header
-------------------------------------- */
.global-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 100;
    background-color: rgba(253, 253, 253, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(213, 209, 203, 0.3);
    transition: background-color 0.4s ease, border-color 0.4s ease;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-en-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-ai);
}

.global-nav {
    display: none;
}
@media (min-width: 1024px) {
    .global-nav { display: block; }
    .global-nav ul {
        display: flex;
        list-style: none;
        align-items: center;
        gap: var(--spacing-md);
    }
    .global-nav a {
        font-family: var(--font-en-display);
        font-size: 0.85rem;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--color-charcoal);
    }
    .global-nav a:hover {
        color: var(--color-shingei);
    }
    .nav-contact {
        position: relative;
    }
    .nav-contact::after {
        content: '↗';
        font-size: 0.7em;
        vertical-align: top;
        margin-left: 2px;
    }
    .nav-lang {
        padding-left: var(--spacing-sm);
        border-left: 1px solid var(--color-greige);
        color: var(--color-seiji) !important;
    }
}

/* -------------------------------------
   Hero Section
-------------------------------------- */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0 var(--spacing-md);
}

.hero-content {
    text-align: center;
    z-index: 2;
    margin-top: -5vh;
}

.hero-title {
    font-size: 1.75rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    font-weight: 400;
    color: var(--color-sumi);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) forwards 0.5s;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
        line-height: 1.6;
    }
}

.hero-description {
    font-size: 1rem;
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) forwards 0.8s;
}

@media (min-width: 768px) {
    .hero-description {
        font-size: 1.125rem;
    }
}

.hero-company {
    font-family: var(--font-ja-display);
    font-size: 1.125rem;
    color: var(--color-sumi);
    opacity: 0;
    animation: fadeIn 1.5s ease forwards 1.2s;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    animation: fadeIn 1.5s ease forwards 1.5s;
}

.hero-scroll-indicator span {
    font-family: var(--font-en-display);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--color-greige);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background-color: rgba(213, 209, 203, 0.3);
    position: relative;
    overflow: hidden;
}

.scroll-line::before {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-charcoal);
    animation: scrollDrop 2s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

@keyframes scrollDrop {
    0% { top: -100%; }
    50% { top: 100%; }
    100% { top: 100%; }
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeIn {
    to { opacity: 1; }
}

/* -------------------------------------
   Thoughts (わたしたちの想い)
-------------------------------------- */
.thoughts {
    /* Background handled by utilities */
}

.thoughts .section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.thoughts-content p {
    margin-bottom: var(--spacing-lg);
    font-size: 1.05rem;
    text-align: justify;
    text-justify: inter-ideograph;
}

@media (min-width: 768px) {
    .thoughts-content {
        padding: 0 var(--spacing-xl);
    }
    .thoughts-content p {
        font-size: 1.125rem;
        line-height: 2;
    }
}

.highlight-text {
    font-family: var(--font-ja-display);
    font-size: 1.5rem !important;
    color: var(--color-ai);
    text-align: center !important;
    margin: var(--spacing-xl) 0 !important;
    line-height: 1.6 !important;
}

/* -------------------------------------
   Initiatives (わたしたちの取り組み)
-------------------------------------- */
.initiatives .section-header.center {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-desc {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1rem;
    color: var(--color-charcoal);
}

.initiatives-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .initiatives-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }
}

.initiative-card {
    background-color: var(--color-offwhite);
    border-top: 2px solid var(--color-shingei);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.initiative-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.initiative-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.initiative-card:hover .initiative-image img {
    transform: scale(1.05);
}

.initiative-content {
    padding: var(--spacing-lg) var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.initiative-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.initiative-number {
    display: block;
    font-family: var(--font-en-display);
    font-size: 1.5rem;
    color: var(--color-greige);
    margin-bottom: var(--spacing-sm);
}

.initiative-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    flex-direction: column;
}

.initiative-title .en {
    font-size: 0.85rem;
    color: var(--color-seiji);
    margin-top: 4px;
}

.initiative-desc {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
    color: #555;
}

.initiative-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

/* -------------------------------------
   About & Company Info
-------------------------------------- */
.about {
    border-top: 1px solid var(--color-greige);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xxl);
    }
}

.about-text {
    font-size: 1.05rem;
    line-height: 2;
}

.info-block {
    margin-bottom: var(--spacing-xl);
    border-top: 1px solid var(--color-greige);
    padding-top: var(--spacing-md);
}

.info-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-sumi);
}

.info-details {
    font-size: 1rem;
}

.info-details p {
    margin-bottom: var(--spacing-sm);
}

.company-dl {
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.company-dl dt {
    font-weight: 500;
    color: var(--color-charcoal);
    margin-top: var(--spacing-sm);
}

.company-dl dd {
    margin-left: 0;
    margin-bottom: var(--spacing-sm);
    color: var(--color-sumi);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .company-dl {
        display: grid;
        grid-template-columns: 80px 1fr;
        gap: 8px 16px;
    }
    
    .company-dl dt {
        margin-top: 0;
    }
    
    .company-dl dd {
        margin-bottom: 0;
    }
}

.tel-link, .tel-link-small {
    font-family: var(--font-en-display);
    color: var(--color-ai);
    letter-spacing: 0.05em;
    display: inline-block;
}

.tel-link {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.tel-link-small {
    font-size: 1.1rem;
}

.tel-link:hover, .tel-link-small:hover {
    color: var(--color-shingei);
}

.representative {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .representative {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }
}

.rep-image {
    width: 140px;
    height: auto;
    aspect-ratio: 3 / 4;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08); /* Add a subtle shadow for a premium feel */
}

@media (min-width: 768px) {
    .rep-image {
        width: 180px;
    }
}

.rep-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top; /* Ensure the face is visible */
    filter: grayscale(20%); /* Slight desaturation for premium feel */
}

.rep-text {
    flex-grow: 1;
}

.representative .rep-name {
    font-family: var(--font-ja-display);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-sumi);
}
.representative .en {
    font-size: 0.9rem;
    color: var(--color-greige);
    margin-left: 8px;
}

.rep-history {
    list-style: none;
    margin-top: var(--spacing-sm);
}
.rep-bio {
    font-size: 0.9rem;
    color: var(--color-charcoal);
    line-height: 1.8;
}

.rep-bio p {
    margin-bottom: var(--spacing-sm);
}
.rep-history li {
    position: relative;
    padding-left: 12px;
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: #555;
}
.rep-history li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 4px;
    height: 1px;
    background-color: var(--color-shingei);
}

/* -------------------------------------
   Footer
-------------------------------------- */
.global-footer {
    background-color: var(--color-sumi);
    color: var(--color-offwhite);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
}

.copyright {
    font-family: var(--font-en-body);
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    opacity: 0.8;
}

.footer-note {
    font-family: var(--font-ja-body);
    font-size: 0.75rem;
    opacity: 0.6;
    margin-left: 10px;
}

@media (max-width: 767px) {
    .footer-note {
        display: block;
        margin-left: 0;
        margin-top: 8px;
    }
}

/* -------------------------------------
   Animations / Interactions
-------------------------------------- */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.fade-in-section.is-visible {
    opacity: 1;
    transform: none;
}