@charset "UTF-8";

/* =========================================
   Variables
   ========================================= */
:root {
    --primary-color: #ad8f5c; /* Refined Gold / Bronze */
    --primary-hover: #8c7143; /* Darker Gold for hover */
    --bg-color: #fdfcfb; /* Pearl/Warm White */
    --bg-surface: #f4f3ef; /* Light Beige for alternating sections */
    --bg-surface-alt: #ffffff; /* White for cards */
    --text-color: #333333; /* Deep Charcoal */
    --text-light: #777777; /* Gray */
    --border-color: #e5e1d8; /* Light warm border */

    --font-heading-en: 'Cormorant Garamond', serif;
    --font-heading-ja: 'Shippori Mincho', serif;
    --font-body: 'Noto Sans JP', sans-serif;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.8;
    font-size: 15px;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

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

/* =========================================
   Animations
   ========================================= */
/* フェードインの初期状態・アニメーションはGSAP(script.js)が付与する。
   JS未読込時もコンテンツが見えるよう、CSS側では非表示にしない。 */

/* =========================================
   Typography & Utilities
   ========================================= */
.section {
    padding: 100px 0;
    position: relative;
    background-color: var(--bg-color);
}

.section:nth-of-type(even) {
    background-color: var(--bg-surface);
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-heading-ja);
    font-size: 2.2rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 16px;
    letter-spacing: 0.1em;
}

.section-sub {
    font-size: 0.9rem;
    color: var(--text-light);
    font-family: var(--font-body);
    letter-spacing: 0.1em;
}

/* =========================================
   Custom Cursor
   ========================================= */
body.custom-cursor-active,
body.custom-cursor-active a,
body.custom-cursor-active button {
    cursor: none;
}

.cursor-dot,
.cursor-ring {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    border-radius: 50%;
    z-index: 9999;
}

.cursor-dot {
    width: 6px;
    height: 6px;
    background-color: var(--primary-color);
    transform: translate(-50%, -50%) scale(1);
    transition: transform 0.25s ease;
}

.cursor-dot.is-hovering {
    transform: translate(-50%, -50%) scale(0);
}

.cursor-ring {
    width: 36px;
    height: 36px;
    border: 1px solid var(--primary-color);
    background-color: transparent;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease, background-color 0.3s ease;
}

.cursor-ring.is-hovering {
    width: 64px;
    height: 64px;
    background-color: rgba(173, 143, 92, 0.12);
}

@media (max-width: 767px) {
    .cursor-dot,
    .cursor-ring {
        display: none;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    color: var(--primary-color);
    padding: 16px 48px;
    border: 1px solid var(--primary-color);
    font-family: var(--font-heading-ja);
    font-size: 1rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border-radius: 0; 
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: -1;
}

.btn:hover {
    color: #ffffff;
}

.btn:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

/* =========================================
   Header
   ========================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(253, 252, 251, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    z-index: 1000;
    transition: var(--transition);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo a {
    font-family: var(--font-heading-en);
    font-size: 1.8rem;
    color: var(--primary-color);
    letter-spacing: 0.1em;
    font-weight: 600;
}

/* Mobile Nav */
.global-nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--bg-surface-alt);
    border-bottom: 1px solid var(--border-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.global-nav.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.global-nav ul {
    display: flex;
    flex-direction: column;
    padding: 30px 5%;
}

.global-nav li {
    margin-bottom: 24px;
}

.global-nav a {
    font-family: var(--font-heading-ja);
    font-size: 1.1rem;
    color: var(--text-color);
    letter-spacing: 0.1em;
}

.global-nav a:hover {
    color: var(--primary-color);
}

.nav-contact-btn {
    color: var(--primary-color) !important;
    border: 1px solid var(--primary-color);
    padding: 10px 24px;
    display: inline-block;
}

.nav-contact-btn:hover {
    background-color: var(--primary-color);
    color: #ffffff !important;
}

/* Hamburger */
.hamburger {
    display: block;
    width: 24px;
    height: 18px;
    position: relative;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    position: absolute;
    width: 100%;
    height: 1px;
    background-color: var(--text-color);
    transition: var(--transition);
}

.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 8px; }
.hamburger span:nth-child(3) { bottom: 0; }

.hamburger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); background-color: var(--primary-color); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); background-color: var(--primary-color); }

/* =========================================
   Hero Section
   ========================================= */
.hero {
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
    position: relative;
    background: radial-gradient(circle at center, #ffffff 0%, var(--bg-surface) 100%);
    overflow: hidden;
}

/* Subtle elegant glow */
.hero::after {
    content: '';
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(173, 143, 92, 0.08) 0%, transparent 60%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 0;
}

#hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-title {
    font-family: var(--font-heading-en);
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 24px;
    line-height: 1.1;
    letter-spacing: 0.05em;
}

.hero-title span {
    color: var(--primary-color);
    font-style: italic;
    font-weight: 400;
}

.hero-sub {
    font-family: var(--font-heading-ja);
    font-size: clamp(1rem, 3vw, 1.2rem);
    color: var(--text-light);
    margin-bottom: 50px;
    letter-spacing: 0.15em;
    line-height: 2;
}

/* =========================================
   Works
   ========================================= */
.marquee-wrapper {
    overflow: hidden;
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    padding: 20px 0 60px;
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marquee-scroll 40s linear infinite;
}

.marquee-wrapper:hover .marquee-track {
    animation-play-state: paused;
}

.slide-item {
    width: 65vw;
    flex-shrink: 0;
    padding: 0 10px;
    box-sizing: border-box;
}

@keyframes marquee-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.work-card {
    display: block;
    background-color: var(--bg-surface-alt);
    padding: 0;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.work-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.06);
}

.work-img {
    overflow: hidden;
    position: relative;
    aspect-ratio: 4/3;
    background-color: #f9f9f9;
}

.work-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 0.95;
}

.work-card:hover .work-img img {
    transform: scale(1.05);
    opacity: 1;
}

.work-info {
    padding: 24px;
    text-align: center;
}

.work-info h3 {
    font-family: var(--font-heading-en);
    font-size: 1.3rem;
    color: var(--text-color);
    font-weight: 500;
    letter-spacing: 0.1em;
}

/* =========================================
   About
   ========================================= */
.about-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-card p {
    margin-bottom: 32px;
    font-size: 1.05rem;
    color: var(--text-color);
    line-height: 2.2;
}

.about-card p:last-child {
    margin-bottom: 0;
}

/* =========================================
   Flow
   ========================================= */
.flow-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.flow-card {
    background-color: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}

.flow-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.04);
}

.flow-icon {
    font-family: var(--font-heading-en);
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1;
}

.flow-text h3 {
    font-family: var(--font-heading-ja);
    font-size: 1.2rem;
    color: var(--text-color);
    font-weight: 500;
    margin-bottom: 12px;
    letter-spacing: 0.1em;
}

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

/* =========================================
   Pricing
   ========================================= */
.pricing-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.pricing-card {
    background-color: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}

.pricing-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.04);
}

.pricing-card h3 {
    font-family: var(--font-heading-ja);
    font-size: 1.2rem;
    color: var(--text-color);
    font-weight: 500;
    margin-bottom: 12px;
    letter-spacing: 0.1em;
}

.pricing-card .price {
    font-family: var(--font-heading-en);
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 16px;
    font-weight: 600;
}

.pricing-card .desc {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.8;
}

.pricing-note {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 30px;
}

/* =========================================
   FAQ
   ========================================= */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-card {
    background-color: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 30px;
    transition: var(--transition);
}

.faq-card:hover {
    border-color: rgba(173, 143, 92, 0.4);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-q-text {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.faq-toggle {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    background-color: var(--primary-color);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s;
}

.faq-toggle::before {
    top: 9px;
    left: 0;
    width: 20px;
    height: 2px;
}

.faq-toggle::after {
    top: 0;
    left: 9px;
    width: 2px;
    height: 20px;
}

.faq-card.active .faq-toggle::after {
    transform: rotate(90deg);
    opacity: 0;
}

.faq-a {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.faq-card.active .faq-a {
    grid-template-rows: 1fr;
}

.faq-a-inner {
    min-height: 0;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding-top: 0;
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding-top 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-card.active .faq-a-inner {
    padding-top: 24px;
    opacity: 1;
}

.q-icon,
.a-icon {
    font-family: var(--font-heading-en);
    font-size: 1.2rem;
    color: var(--primary-color);
    width: 24px;
    flex-shrink: 0;
    line-height: 1.4;
    text-align: center;
}

.faq-q h3 {
    font-family: var(--font-heading-ja);
    font-size: 1.1rem;
    color: var(--text-color);
    font-weight: 500;
    line-height: 1.6;
    margin-top: -2px;
}

.faq-a p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* =========================================
   Contact
   ========================================= */
#contact {
    background-color: #555555; /* Neutral Gray */
}

#contact .section-sub {
    color: #e0e0e0; /* Off-white for readability */
}

.contact-card {
    background-color: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 50px 30px;
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-family: var(--font-heading-ja);
    color: var(--text-color);
    margin-bottom: 12px;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--bg-surface-alt);
}

.form-btn {
    text-align: center;
    margin-top: 40px;
}

.contact-submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 16px 48px;
    font-family: var(--font-heading-ja);
    font-size: 1.05rem;
    letter-spacing: 0.1em;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-submit-btn:hover {
    background-color: #bfa577; /* Slightly brighter */
    box-shadow: 0 4px 15px rgba(173, 143, 92, 0.3);
}

.contact-submit-btn .arrow {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.contact-submit-btn:hover .arrow {
    transform: translateX(3px);
}

.contact-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

.form-feedback-error {
    margin-bottom: 30px;
    padding: 16px 20px;
    background-color: #fbeceb;
    border: 1px solid #e6c2be;
    border-radius: var(--radius-sm);
    color: #a13d33;
    font-family: var(--font-body);
    font-size: 0.9rem;
    line-height: 1.7;
}

.form-feedback-success {
    text-align: center;
    padding: 20px 10px 10px;
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.9;
}

.form-feedback-success strong {
    display: block;
    font-family: var(--font-heading-ja);
    font-size: 1.2rem;
    letter-spacing: 0.05em;
    color: var(--primary-color);
    margin-bottom: 12px;
}

/* =========================================
   Footer
   ========================================= */
.footer {
    padding: 60px 0 40px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-color);
}

.footer p {
    font-family: var(--font-heading-en);
    color: var(--text-light);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

/* =========================================
   Responsive (Tablet & PC)
   ========================================= */
@media screen and (min-width: 768px) {
    .section { padding: 140px 0; }

    /* Header */
    .hamburger { display: none; }
    .global-nav {
        position: static;
        opacity: 1;
        visibility: visible;
        background-color: transparent;
        border: none;
        transform: none;
        width: auto;
    }
    .global-nav ul {
        flex-direction: row;
        padding: 0;
        gap: 40px;
        align-items: center;
    }
    .global-nav li { margin-bottom: 0; }
    .global-nav a { font-size: 0.95rem; }

    .nav-contact-btn {
        padding: 10px 28px;
    }

    /* Works */
    .slide-item { width: 33.333vw; padding: 0 15px; }

    /* Flow */
    .flow-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .flow-card:last-child {
        grid-column: 2 / 3;
    }

    /* Pricing */
    .pricing-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    /* FAQ */
    .faq-card { padding: 40px 50px; }

    /* Contact */
    .contact-card { padding: 80px; }
    .contact-submit-btn { width: auto; min-width: 280px; padding: 20px 60px; }
}

@media screen and (min-width: 1024px) {
    .slide-item { width: 20vw; padding: 0 15px; }
    .flow-list { grid-template-columns: repeat(5, 1fr); }
    .flow-card:last-child { grid-column: auto; }
}