/* ============================================
   J4 ATELIER — Main Styles
   Milan Fashion × Japanese Minimalism
   ============================================ */

:root {
    /* Color Palette */
    --color-ivory: #FAF7F2;
    --color-black: #0A0A0A;
    --color-charcoal: #2A2A2A;
    --color-mid-gray: #757575;
    --color-light-gray: #D4D4D4;
    --color-accent: #8B4545; /* Muted dark red */
    --color-accent-alt: #9B8A6F; /* Muted gold */

    /* Typography */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;

    /* Layout */
    --container-max: 1400px;
    --container-narrow: 800px;
    --nav-height: 80px;
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-charcoal);
    background-color: var(--color-ivory);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.7;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3 {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.2;
}

h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    line-height: 1.7;
}

/* ============================================
   Layout Containers
   ============================================ */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background-color: rgba(250, 247, 242, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(42, 42, 42, 0.1);
}

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

.nav-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--color-black);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.03em;
    color: var(--color-charcoal);
    text-transform: lowercase;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-black);
    transition: all 0.3s ease;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
    position: relative;
    margin-top: var(--nav-height);
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 300;
    letter-spacing: 0.08em;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.hero-logo-container {
    margin-bottom: var(--spacing-md);
}

.hero-logo {
    max-width: min(357px, 82vw);
    height: auto;
    display: block;
    margin: 0 auto;
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-size: clamp(1.4rem, 4vw, 2rem);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
}

.hero-tagline {
    font-size: clamp(1.1rem, 3vw, 1.4rem);
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-mid-gray);
    margin-bottom: var(--spacing-sm);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-mid-gray);
}

.hero-scroll-line {
    width: 1px;
    height: 40px;
    background-color: var(--color-mid-gray);
    animation: scrollIndicator 2s ease-in-out infinite;
}

@keyframes scrollIndicator {
    0%, 100% { opacity: 0; transform: translateY(-10px); }
    50% { opacity: 1; transform: translateY(10px); }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: 1px solid var(--color-black);
    transition: all 0.3s ease;
    cursor: pointer;
    min-height: 44px;
}

.btn-primary {
    background-color: var(--color-black);
    color: var(--color-ivory);
}

.btn-primary:hover {
    background-color: var(--color-charcoal);
    opacity: 1;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-black);
}

.btn-secondary:hover {
    background-color: var(--color-black);
    color: var(--color-ivory);
    opacity: 1;
}

.btn-outline {
    background-color: transparent;
    color: var(--color-charcoal);
    border-color: var(--color-charcoal);
    padding: 0.7rem 1.5rem;
    font-size: 0.85rem;
}

.btn-outline:hover {
    background-color: var(--color-charcoal);
    color: var(--color-ivory);
    opacity: 1;
}

/* ============================================
   Section Titles
   ============================================ */

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 300;
    letter-spacing: 0.03em;
    color: var(--color-black);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.section-title-large {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 300;
    letter-spacing: 0.02em;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

/* ============================================
   Featured Work Section
   ============================================ */

.featured-work {
    background-color: var(--color-ivory);
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.work-category {
    text-align: center;
}

.work-image-container {
    width: 100%;
    aspect-ratio: 3/4;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    background-color: #E8E5E0;
}

.work-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.work-category:hover .work-image {
    transform: scale(1.05);
}

.work-category-title {
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 0.03em;
    color: var(--color-black);
}

/* ============================================
   Selected Projects Section
   ============================================ */

.selected-projects {
    background-color: #F5F2ED;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    text-align: left;
}

.project-image-container {
    width: 100%;
    aspect-ratio: 4/5;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
    background-color: #E0DDD8;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image {
    transform: scale(1.03);
}

.project-info {
    padding: var(--spacing-sm) 0;
}

.project-description {
    font-size: 0.9rem;
    color: var(--color-mid-gray);
    margin-bottom: 0.4rem;
    letter-spacing: 0.05em;
}

.project-title {
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--color-black);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.project-medium {
    font-size: 0.95rem;
    color: var(--color-mid-gray);
    font-style: italic;
}

/* ============================================
   Services Section
   ============================================ */

.services {
    background-color: var(--color-ivory);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    padding: var(--spacing-md);
    border: 1px solid rgba(42, 42, 42, 0.15);
    background-color: transparent;
    transition: background-color 0.3s ease;
}

.service-card:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

.service-number {
    display: block;
    font-size: 0.8rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    color: var(--color-mid-gray);
    margin-bottom: var(--spacing-sm);
}

.service-title {
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
    color: var(--color-black);
}

.service-list {
    list-style: none;
    font-size: 0.95rem;
    color: var(--color-charcoal);
    line-height: 1.8;
}

.service-list li {
    margin-bottom: 0.4rem;
}

.service-list li:before {
    content: "—";
    margin-right: 0.5rem;
    color: var(--color-mid-gray);
}

.service-card-kotodama {
    border-color: var(--color-accent);
}

.service-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   About Section
   ============================================ */

.about {
    background-color: #F5F2ED;
    padding: var(--spacing-xxl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 35% 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.about-image-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    background-color: #E8E5E0;
}

.about-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.about-text {
    max-width: 100%;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-charcoal);
}

.about-text p:first-of-type {
    font-size: 1.15rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-charcoal);
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
    background-color: var(--color-black);
    color: var(--color-ivory);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.contact .section-title-large {
    color: var(--color-ivory);
}

.contact-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: rgba(250, 247, 242, 0.8);
    margin-bottom: var(--spacing-lg);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

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

.contact-label {
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(250, 247, 242, 0.6);
    margin-bottom: 0.5rem;
}

.contact-link {
    font-size: 1.3rem;
    font-family: var(--font-serif);
    color: var(--color-ivory);
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--color-accent-alt);
    opacity: 1;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: var(--color-black);
    color: rgba(250, 247, 242, 0.7);
    padding: var(--spacing-md) 0;
    text-align: center;
    border-top: 1px solid rgba(250, 247, 242, 0.1);
}

.footer-text {
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    font-size: 0.85rem;
}

.footer-links a {
    color: rgba(250, 247, 242, 0.7);
}

.footer-links a:hover {
    color: var(--color-ivory);
}