/* ==========================================
   WALUXE INC. - SOPHISTICATED TYPOGRAPHY SYSTEM
   ========================================== */

/* CSS Variables - Refined Color Palette */
:root {
    /* Colors */
    --color-ivory: #F8F6F1;
    --color-charcoal: #2C2C2C;
    --color-charcoal-light: #4A4A4A;
    --color-gold: #C9A86A;
    --color-gold-light: #D4B886;
    --color-indigo: #2F3E5C;
    --color-white: #FFFFFF;
    --color-black: #1A1A1A;
    
    /* Typography - Refined Font Families */
    --font-display: 'Playfair Display', serif;        /* Elegant headlines */
    --font-heading: 'Montserrat', sans-serif;         /* Modern headings */
    --font-body: 'Crimson Pro', serif;                /* Refined body text */
    --font-accent: 'Lato', sans-serif;                /* Clean UI elements */
    --font-japanese: 'Noto Serif JP', serif;          /* Japanese text */
    
    /* Font Weights */
    --weight-light: 300;
    --weight-regular: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;
    
    /* Letter Spacing */
    --spacing-tight: -0.02em;
    --spacing-normal: 0;
    --spacing-relaxed: 0.03em;
    --spacing-wide: 0.08em;
    --spacing-extra-wide: 0.15em;
    
    /* Line Heights */
    --leading-tight: 1.2;
    --leading-snug: 1.4;
    --leading-normal: 1.6;
    --leading-relaxed: 1.75;
    --leading-loose: 1.9;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

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

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

body {
    font-family: var(--font-body);
    font-weight: var(--weight-regular);
    font-size: 1.125rem;
    line-height: var(--leading-relaxed);
    letter-spacing: var(--spacing-relaxed);
    color: var(--color-charcoal);
    background-color: var(--color-ivory);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Japanese Language Typography */
body[lang="ja"],
body[lang="ja"] * {
    font-family: var(--font-japanese);
    letter-spacing: var(--spacing-normal);
}

/* ==========================================
   TYPOGRAPHY HIERARCHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-tight);
    letter-spacing: var(--spacing-tight);
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: var(--weight-bold);
    letter-spacing: var(--spacing-tight);
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    letter-spacing: var(--spacing-normal);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-family: var(--font-heading);
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-relaxed);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-family: var(--font-heading);
    font-weight: var(--weight-medium);
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    line-height: var(--leading-relaxed);
}

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

a:hover {
    color: var(--color-gold);
}

/* ==========================================
   LANGUAGE TOGGLE
   ========================================== */

.language-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(248, 246, 241, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.lang-btn {
    font-family: var(--font-accent);
    font-size: 0.875rem;
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-wide);
    color: var(--color-charcoal-light);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--transition-fast);
    text-transform: uppercase;
}

.lang-btn.active {
    color: var(--color-gold);
}

.lang-btn:hover {
    color: var(--color-charcoal);
}

.lang-separator {
    color: var(--color-charcoal-light);
    font-weight: var(--weight-light);
}

/* ==========================================
   NAVIGATION
   ========================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: rgba(248, 246, 241, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    font-size: 1.5rem;
    text-decoration: none;
}

.logo-wa {
    font-family: var(--font-japanese);
    font-size: 1.75rem;
    font-weight: var(--weight-bold);
    color: var(--color-indigo);
}

.logo-luxe {
    font-family: var(--font-heading);
    font-weight: var(--weight-bold);
    letter-spacing: var(--spacing-extra-wide);
    color: var(--color-charcoal);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-link {
    font-family: var(--font-accent);
    font-size: 0.9rem;
    font-weight: var(--weight-medium);
    letter-spacing: var(--spacing-wide);
    text-transform: uppercase;
    color: var(--color-charcoal);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gold);
    transition: width var(--transition-base);
}

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

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 2s ease-in-out;
}

.hero-image-1 {
    background-image: url('https://images.unsplash.com/photo-1480796927426-f609979314bd?w=1920&q=85');
    opacity: 1;
}

.hero-image-2 {
    background-image: url('https://images.unsplash.com/photo-1540959733332-eab4deabeeaf?w=1920&q=85');
}

.hero-image-3 {
    background-image: url('https://images.unsplash.com/photo-1493976040374-85c8e12f0c0e?w=1920&q=85');
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(47, 62, 92, 0.5), rgba(44, 44, 44, 0.4));
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 2rem;
    max-width: 1000px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: var(--weight-bold);
    letter-spacing: var(--spacing-tight);
    line-height: var(--leading-tight);
    color: var(--color-white);
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    font-weight: var(--weight-light);
    letter-spacing: var(--spacing-relaxed);
    line-height: var(--leading-relaxed);
    color: var(--color-ivory);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-wide);
    text-transform: uppercase;
    padding: 1.25rem 2.5rem;
    border-radius: 50px;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta-whatsapp {
    background: var(--color-gold);
    color: var(--color-white);
}

.cta-whatsapp:hover {
    background: var(--color-gold-light);
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(201, 168, 106, 0.4);
}

.cta-email {
    background: var(--color-white);
    color: var(--color-charcoal);
}

.cta-email:hover {
    background: var(--color-ivory);
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.15);
}

.cta-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   FEATURES SECTION (4-CARD GRID)
   ========================================== */

.features {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

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

.feature-card {
    background: var(--color-ivory);
    padding: 3rem 2.5rem;
    border-radius: 8px;
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.feature-card:hover .feature-icon {
    color: var(--color-gold);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 2rem;
    color: var(--color-indigo);
    transition: color var(--transition-base);
}

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

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-relaxed);
    color: var(--color-charcoal);
    margin-bottom: 1rem;
}

.feature-description {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    font-weight: var(--weight-regular);
    letter-spacing: var(--spacing-relaxed);
    line-height: var(--leading-relaxed);
    color: var(--color-charcoal-light);
    margin: 0;
}

/* ==========================================
   CONTAINER
   ========================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
}

/* ==========================================
   SECTION TITLES
   ========================================== */

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-tight);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-charcoal);
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

.about {
    padding: var(--spacing-xl) 0;
    background: var(--color-ivory);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text {
    padding-right: 2rem;
}

.about-description p {
    font-size: 1.125rem;
    line-height: var(--leading-relaxed);
    letter-spacing: var(--spacing-relaxed);
    margin-bottom: 1.5rem;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* ==========================================
   FOUNDER SECTION
   ========================================== */

.founder {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.founder-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 4rem;
    align-items: start;
    margin-top: 3rem;
}

.founder-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.founder-name {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-normal);
    color: var(--color-charcoal);
    margin-bottom: 0.5rem;
}

.founder-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: var(--weight-medium);
    letter-spacing: var(--spacing-wide);
    text-transform: uppercase;
    color: var(--color-gold);
    margin-bottom: 2rem;
}

.founder-bio p {
    font-size: 1.125rem;
    line-height: var(--leading-relaxed);
    letter-spacing: var(--spacing-relaxed);
    margin-bottom: 1.5rem;
}

.founder-note {
    font-size: 1rem;
    font-style: italic;
    color: var(--color-charcoal-light);
}

/* ==========================================
   SERVICES SECTION
   ========================================== */

.services {
    padding: var(--spacing-xl) 0;
    background: var(--color-ivory);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

.service-card {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 3rem;
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.service-content {
    padding: 3rem 3rem 3rem 0;
}

.service-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-relaxed);
    margin-bottom: 2rem;
    color: var(--color-charcoal);
}

.service-list {
    list-style: none;
}

.service-list li {
    font-size: 1.0625rem;
    line-height: var(--leading-relaxed);
    letter-spacing: var(--spacing-relaxed);
    padding-left: 2rem;
    margin-bottom: 1.25rem;
    position: relative;
}

.service-list li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--color-gold);
    font-size: 0.75rem;
}

/* ==========================================
   PHILOSOPHY SECTION
   ========================================== */

.philosophy {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.philosophy-intro {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: var(--weight-light);
    font-style: italic;
    letter-spacing: var(--spacing-relaxed);
    line-height: var(--leading-relaxed);
    text-align: center;
    max-width: 900px;
    margin: 0 auto 4rem;
    color: var(--color-charcoal-light);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
}

.philosophy-card {
    text-align: center;
    padding: 2rem;
    background: var(--color-ivory);
    border-radius: 8px;
    transition: transform var(--transition-base);
}

.philosophy-card:hover {
    transform: translateY(-5px);
}

.philosophy-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.philosophy-kanji {
    font-family: var(--font-japanese);
    font-size: 3rem;
    font-weight: var(--weight-bold);
    color: var(--color-indigo);
}

.philosophy-romaji {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-extra-wide);
    color: var(--color-charcoal);
    text-transform: uppercase;
}

.philosophy-description {
    font-size: 1rem;
    letter-spacing: var(--spacing-relaxed);
    line-height: var(--leading-normal);
    color: var(--color-charcoal-light);
    margin: 0;
}

.philosophy-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* ==========================================
   CONTACT SECTION
   ========================================== */

.contact {
    padding: var(--spacing-xl) 0;
    background: var(--color-ivory);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 5rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.contact-item h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-wide);
    text-transform: uppercase;
    color: var(--color-charcoal-light);
    margin-bottom: 1rem;
}

.contact-item a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: var(--weight-medium);
    color: var(--color-charcoal);
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--color-gold);
}

/* ==========================================
   CONTACT FORM
   ========================================== */

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.25rem 1rem 0.5rem;
    font-family: var(--font-body);
    font-size: 1rem;
    letter-spacing: var(--spacing-relaxed);
    border: none;
    border-bottom: 2px solid var(--color-charcoal-light);
    background: transparent;
    color: var(--color-charcoal);
    transition: border-color var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-bottom-color: var(--color-gold);
}

.form-group label {
    position: absolute;
    left: 1rem;
    top: 1.25rem;
    font-family: var(--font-accent);
    font-size: 0.9rem;
    font-weight: var(--weight-regular);
    letter-spacing: var(--spacing-relaxed);
    color: var(--color-charcoal-light);
    transition: all var(--transition-fast);
    pointer-events: none;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: 0.25rem;
    font-size: 0.75rem;
    color: var(--color-gold);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.submit-btn {
    align-self: flex-start;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: var(--weight-semibold);
    letter-spacing: var(--spacing-wide);
    text-transform: uppercase;
    padding: 1.25rem 3rem;
    background: var(--color-indigo);
    color: var(--color-white);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(47, 62, 92, 0.2);
}

.submit-btn:hover {
    background: var(--color-gold);
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(201, 168, 106, 0.3);
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    padding: 4rem 0 2rem;
    background: var(--color-charcoal);
    color: var(--color-ivory);
}

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

.footer-logo {
    display: inline-flex;
    align-items: baseline;
    gap: 0.25rem;
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.footer-logo .logo-wa {
    color: var(--color-gold);
}

.footer-logo .logo-luxe {
    color: var(--color-ivory);
}

.footer-tagline {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: var(--weight-light);
    font-style: italic;
    letter-spacing: var(--spacing-relaxed);
    margin-bottom: 2rem;
}

.footer-copyright {
    font-family: var(--font-accent);
    font-size: 0.875rem;
    font-weight: var(--weight-light);
    letter-spacing: var(--spacing-wide);
    color: var(--color-charcoal-light);
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 1024px) {
    .nav-menu {
        gap: 2rem;
    }
    
    .about-content,
    .founder-content,
    .service-card {
        grid-template-columns: 1fr;
    }
    
    .philosophy-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    .container {
        padding: 0 1.5rem;
    }
    
    .language-toggle {
        top: 1rem;
        right: 1rem;
        padding: 0.5rem 1rem;
    }
    
    .nav-container {
        padding: 1rem 1.5rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-link {
        font-size: 0.8rem;
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .feature-card {
        padding: 2rem 1.5rem;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .service-card {
        gap: 0;
    }
    
    .service-content {
        padding: 2rem 1.5rem;
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        gap: 1rem;
    }
    
    .cta-button {
        padding: 1rem 2rem;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .philosophy-kanji {
        font-size: 2.5rem;
    }
}