/*
Theme Name: Musubi-On-Design
Theme URI: https://musubi-on-design.jp
Author: Musubi-On-Design
Author URI: https://musubi-on-design.jp
Description: Musubi-On-Designのオリジナルコーポレートサイトテーマ。想いをつなぎ、届ける。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: musubi-on-design
*/

/* ========================================
   Musubi-On-Design - Main Stylesheet
   ======================================== */

/* ----------------------------------------
   CSS Variables
---------------------------------------- */
:root {
    /* Colors */
    --color-primary: #008000;
    --color-primary-dark: #006600;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-border: #cccccc;
    --color-error: #e53935;
    --color-overlay: rgba(0, 0, 0, 0.5);

    /* Fonts */
    --font-jp: "游ゴシック体", "YuGothic", "游ゴシック", "Yu Gothic", sans-serif;
    --font-en: "Avenir", "Avenir Next", -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;

    /* Header */
    --header-height: 100px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-jp);
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

ul,
ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* ----------------------------------------
   Typography
---------------------------------------- */
.font-en {
    font-family: var(--font-en);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.4;
}

/* ========================================
   HEADER
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1001;
    background-color: var(--color-white);
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 40px;
    max-width: 100%;
}

.header__logo {
    display: block;
    height: auto;
}

.header__logo-img {
    height: 65px;
    width: auto;
    /* 緑色（#008000）に近づけるフィルター */
    filter: brightness(0) saturate(100%) invert(27%) sepia(89%) saturate(1220%) hue-rotate(95deg) brightness(97%) contrast(103%);
}

/* メニューが開いている時はヘッダーの背景を透明に */
body.menu-open .header {
    background-color: transparent;
}

/* Hamburger Menu */
.header__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 70px;
    height: 70px;
    gap: 10px;
    z-index: 1002;
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
}

.header__hamburger-line {
    display: block;
    width: 45px;
    height: 3px;
    background-color: var(--color-primary);
    transition: var(--transition-normal);
}

.header__hamburger.is-active .header__hamburger-line {
    background-color: #ffffff;
}

.header__hamburger.is-active .header__hamburger-line:nth-child(1) {
    transform: translateY(13px) rotate(45deg);
}

.header__hamburger.is-active .header__hamburger-line:nth-child(2) {
    opacity: 0;
}

.header__hamburger.is-active .header__hamburger-line:nth-child(3) {
    transform: translateY(-13px) rotate(-45deg);
}

/* ========================================
   NAVIGATION
======================================== */
.nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 400px;
    height: 100vh;
    background-color: var(--color-primary);
    transition: right 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
}

.nav.is-open {
    right: 0;
}

.nav__inner {
    padding: calc(var(--header-height) + var(--spacing-xl)) var(--spacing-lg);
}

.nav__list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav__link {
    display: block;
    padding: 12px var(--spacing-lg);
    color: #f5f5f5;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    transition: border-left-color 0.3s ease;
    border-left: 3px solid transparent;
}

.nav__link:hover {
    border-left-color: #ffffff;
}

.nav__link--instagram {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.nav__link--instagram svg {
    flex-shrink: 0;
}

.nav__link--instagram:hover {
    border-left-color: #ffffff;
}

/* ========================================
   HERO (FV)
======================================== */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: var(--header-height);
    overflow: hidden;
    background-color: var(--color-white);
}

.hero__content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* SVG Line Art Animation */
.hero__line-art {
    position: absolute;
    width: 70%;
    max-width: 700px;
    opacity: 1;
    transition: opacity 1s ease;
}

.hero__line-art.is-hidden {
    opacity: 0;
}

.hero__line-art-svg {
    width: 100%;
    height: auto;
}

/* Logo Animation */
.hero__logo-animation {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    opacity: 0;
    transform: translateY(20px);
}

.hero__logo-animation.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 1s ease, transform 1s ease;
}

.hero__logo-animation.is-fadeout {
    opacity: 0;
    transition: opacity 1.5s ease;
}

.hero__logo-symbol {
    width: 200px;
    opacity: 0;
    transform: translateY(-20px);
}

.hero__logo-symbol.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 1.5s ease, transform 1.5s ease;
}

.hero__logo-symbol-img {
    width: 100%;
    height: auto;
    /* コーポレートカラー（緑）に変更 */
    filter: brightness(0) saturate(100%) invert(27%) sepia(89%) saturate(1220%) hue-rotate(95deg) brightness(97%) contrast(103%);
}

.hero__logo-text {
    width: 650px;
    opacity: 0;
}

.hero__logo-text.is-visible {
    opacity: 1;
    transition: opacity 1.8s ease;
}

.hero__logo-text-img {
    width: 100%;
    height: auto;
    /* #393939に変更 */
    filter: brightness(0) saturate(100%) invert(24%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(91%) contrast(87%);
}

/* Copy Text */
.hero__copy {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
}

.hero__copy.is-visible {
    opacity: 1;
    transition: opacity 2s ease;
}

.hero__copy.is-fadeout-left {
    opacity: 0;
    transform: translate(calc(-50% - 100px), -50%);
    transition: opacity 1.5s ease, transform 1.5s ease;
}

.hero__copy-text {
    font-size: 2.5rem;
    font-weight: 400;
    letter-spacing: 0.3em;
    color: var(--color-text);
}

/* Scroll Down - Modern Style */
.hero__scroll {
    position: absolute;
    bottom: 50px;
    right: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.hero__scroll-text {
    font-family: var(--font-en);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-primary);
    letter-spacing: 0.15em;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    animation: scrollTextPulse 2s ease-in-out infinite;
}

@keyframes scrollTextPulse {

    0%,
    100% {
        opacity: 0.7;
        transform: translateY(0);
    }

    50% {
        opacity: 1;
        transform: translateY(5px);
    }
}

.hero__scroll-line {
    width: 2px;
    height: 80px;
    background: linear-gradient(to bottom, var(--color-primary) 0%, transparent 100%);
    position: relative;
    overflow: hidden;
}

.hero__scroll-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 30px;
    background: linear-gradient(to bottom, transparent 0%, var(--color-primary) 50%, transparent 100%);
    animation: scrollLineMove 2s ease-in-out infinite;
}

@keyframes scrollLineMove {
    0% {
        transform: translateY(-30px);
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        transform: translateY(80px);
        opacity: 0;
    }
}

/* ========================================
   HORIZONTAL SCROLL CONTAINER (PC)
   GSAP ScrollTrigger で制御
======================================== */
.horizontal-scroll-container {
    width: 100%;
    /* GSAPがpin時に高さを自動設定するため、ここでは指定しない */
}

.horizontal-scroll-wrapper {
    display: flex;
    width: max-content;
    will-change: transform;
    /* パフォーマンス最適化 */
}

.horizontal-section {
    width: 100vw;
    min-height: 100vh;
    flex-shrink: 0;
}

/* Mobile: disable horizontal scroll */
@media (max-width: 1023px) {
    .horizontal-scroll-wrapper {
        display: block;
        width: 100%;
    }

    .horizontal-section {
        width: 100%;
        min-height: auto;
    }
}

/* ========================================
   CONCEPT
======================================== */
.concept {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 120px var(--spacing-lg);
    background-color: var(--color-white);
}

.concept__inner {
    max-width: 1200px;
    width: 100%;
}

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

.concept__title-main {
    display: block;
    font-family: var(--font-en);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.concept__title-sub {
    display: block;
    font-family: var(--font-en);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-top: var(--spacing-xs);
}

.concept__illustration {
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.concept__illustration-svg {
    width: 100%;
    height: auto;
}

.concept__text-section {
    text-align: center;
}

.concept__text-title {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

/* 2つ目以降のタイトルブロックに上部の余白を追加 */
.concept__text-body+.concept__text-title {
    margin-top: var(--spacing-xxl);
}

.concept__text-body {
    font-size: 0.9375rem;
    line-height: 2;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.concept__text-subtitle {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   SERVICE
======================================== */
.service {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 120px var(--spacing-lg);
    background-color: var(--color-white);
    min-height: 100vh;
}

.service__inner {
    max-width: 1400px;
    width: 100%;
}

.service__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: 1fr 1fr 1fr;
    gap: var(--spacing-md);
    min-height: 70vh;
    align-items: center;
}

.service__item {
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.service__item--tsunagu {
    justify-content: flex-start;
}

.service__item--illustration {
    display: flex;
    justify-content: center;
    align-items: center;
}

.service__item-title--jp {
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.1em;
}

.strength__item {
    position: relative;
    text-align: left;
}

.strength__item-number {
    font-family: var(--font-en);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.2;
    line-height: 1;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.service__item-title--en {
    font-family: var(--font-en);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.service__item-subtitle {
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.service__item-desc {
    font-size: 0.85rem;
    color: var(--color-text);
    line-height: 1.6;
    margin-top: 0;
}

.service__item-svg {
    width: 120%;
    max-width: 250px;
    height: auto;
}

.service__item--center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.service__main-title {
    font-family: var(--font-en);
    font-size: 4rem;
    font-weight: 400;
    color: var(--color-primary);
}

.service__item--musubu {
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
}

.service__item--musubu .service__item-title--jp {
    font-size: 4.5rem;
    letter-spacing: 0.2em;
}

/* ========================================
   SERVICE ANIMATIONS
======================================== */

/* 初期状態（非表示） */
.service__item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* アニメーション表示状態 */
.service__item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* ふわふわ浮遊アニメーション */
.service__item.floating {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* 各アイテムの遅延時間 */
.service__item--tsunagu.animate-in {
    transition-delay: 0.1s;
}

.service__item--illustration.animate-in {
    transition-delay: 0.2s;
}

.service__item--operation.animate-in {
    transition-delay: 0.3s;
}

.service__item--web1.animate-in {
    transition-delay: 0.4s;
}

.service__item--center.animate-in {
    transition-delay: 0.5s;
}

.service__item--marketing.animate-in {
    transition-delay: 0.6s;
}

.service__item--web2.animate-in {
    transition-delay: 0.7s;
}

.service__item--branding.animate-in {
    transition-delay: 0.8s;
}

.service__item--musubu.animate-in {
    transition-delay: 0.9s;
}


/* 中央のServiceタイトル */
.service__main-title {
    display: inline-block;
    transition: all 0.3s ease;
}

/* モバイル用タイトルはPCで非表示 */
.service__main-title--mobile {
    display: none;
}



/* ========================================
   STRENGTH
======================================== */
.strength {
    padding: calc(var(--header-height) + 100px) var(--spacing-lg) 120px;
    background-color: var(--color-white);
    min-height: 100vh;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
}

.strength__inner {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 背景イラスト（PC用） */
.strength__illustration--pc {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    max-width: 600px;
    z-index: 1;
    opacity: 0.3;
}

/* モバイル用イラスト（デフォルトは非表示） */
.strength__illustration--mobile {
    display: none;
}

.strength__illustration-svg {
    width: 100%;
    height: auto;
}

/* タイトル（中央下部） */
.strength__main-title {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.1em;
    line-height: 1.2;
    z-index: 10;
    white-space: nowrap;
}

/* 4項目のグリッド */
.strength__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: var(--spacing-xxl) var(--spacing-xl);
    width: 100%;
    height: 100%;
    min-height: 60vh;
    z-index: 5;
    position: relative;
    padding-bottom: 80px;
}

.strength__item {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    z-index: 5;
}

/* 番号のスタイル */
.strength__item-number {
    font-family: var(--font-en);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.2;
    line-height: 1;
    display: block;
    margin-bottom: var(--spacing-xs);
    /* アニメーション初期状態 */
    transform: scale(0);
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* アニメーション表示状態 */
.strength__item-number.zoom-in {
    transform: scale(1);
}

/* 各数字の遅延時間 */
.strength__grid>.strength__item:nth-child(1) .strength__item-number {
    transition-delay: 0.2s;
}

.strength__grid>.strength__item:nth-child(2) .strength__item-number {
    transition-delay: 0.4s;
}

.strength__grid>.strength__item:nth-child(3) .strength__item-number {
    transition-delay: 0.6s;
}

.strength__grid>.strength__item:nth-child(4) .strength__item-number {
    transition-delay: 0.8s;
}

/* タイトルと説明 */
.strength__item-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: var(--spacing-xs) 0;
    line-height: 1.4;
}

.strength__item-desc {
    font-size: 1.1rem;
    color: var(--color-text);
    line-height: 1.7;
}

/* 個別の位置調整 */
.strength__item--01 {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
    justify-self: start;
    text-align: left;
}

.strength__item--03 {
    grid-column: 2;
    grid-row: 1;
    align-self: start;
    justify-self: end;
    text-align: right;
}

.strength__item--02 {
    grid-column: 1;
    grid-row: 2;
    align-self: end;
    justify-self: start;
    text-align: left;
}

.strength__item--04 {
    grid-column: 2;
    grid-row: 2;
    align-self: end;
    justify-self: end;
    text-align: right;
}

/* ========================================
   COMPANY
======================================== */
.company {
    padding: 120px var(--spacing-lg);
    background-color: var(--color-white);
}

.company__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.company__title {
    font-family: var(--font-en);
    font-size: 4rem;
    font-weight: 400;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.company__content {
    display: flex;
    gap: var(--spacing-xxl);
    align-items: center;
}

.company__logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.company__logo-symbol {
    width: 120px;
    height: auto;
    filter: brightness(0) saturate(100%) invert(27%) sepia(89%) saturate(1220%) hue-rotate(95deg) brightness(97%) contrast(103%);
}

.company__logo-text {
    width: 280px;
    height: auto;
    filter: brightness(0) saturate(100%) invert(27%) sepia(89%) saturate(1220%) hue-rotate(95deg) brightness(97%) contrast(103%);
}

.company__table {
    width: 100%;
    border-collapse: collapse;
}

.company__table th,
.company__table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: top;
}

.company__table th {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-light);
    width: 140px;
    white-space: nowrap;
}

.company__table td {
    font-size: 1rem;
    color: var(--color-text);
}

/* ========================================
   CONTACT
======================================== */
.contact {
    padding: 120px var(--spacing-lg);
    background-color: var(--color-white);
}

.contact__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.contact__left {
    position: relative;
    display: flex;
    flex-direction: column;
}

.contact__illustration {
    width: 250px;
    margin-top: var(--spacing-lg);
}

.contact__illustration-svg {
    width: 100%;
    height: auto;
}

.contact__header {
    position: relative;
    z-index: 2;
}

.contact__title {
    font-family: var(--font-en);
    font-size: 4rem;
    font-weight: 400;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    letter-spacing: 0.05em;
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.contact__subtitle {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.6;
}

.contact__description {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-lg);
    line-height: 1.8;
    position: relative;
    z-index: 2;
}

.contact__privacy-link {
    color: var(--color-primary);
    text-decoration: underline;
}


/* Form */
.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact__form-group {
    display: flex;
    flex-direction: column;
}

.contact__label {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.contact__required {
    color: var(--color-primary);
}

.contact__input,
.contact__textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-jp);
    font-size: 1rem;
    color: var(--color-text);
    transition: border-color var(--transition-fast);
}

.contact__input:focus,
.contact__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.contact__input::placeholder,
.contact__textarea::placeholder {
    color: var(--color-text-light);
}

.contact__textarea {
    min-height: 150px;
    resize: vertical;
}

.contact__input-row {
    display: flex;
    gap: var(--spacing-sm);
}

.contact__input-row .contact__input {
    flex: 1;
}

/* Checkbox */
.contact__checkbox-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.contact__checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.contact__checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.contact__checkbox-text {
    font-size: 0.875rem;
    color: var(--color-text);
}

.contact__checkbox-text--en {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-light);
    font-style: italic;
}

/* Agreement */
.contact__agreement {
    margin-top: var(--spacing-md);
}

.contact__checkbox--agreement {
    align-items: flex-start;
}

.contact__notice {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

.contact__notice--en {
    font-style: italic;
}

/* Submit Button */
.contact__submit {
    width: 100%;
    padding: 16px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    letter-spacing: 0.5em;
    text-indent: 0.5em;
}

.contact__submit:hover {
    background-color: var(--color-primary-dark);
}

/* ========================================
   FOOTER
======================================== */
.footer {
    padding: var(--spacing-lg) var(--spacing-lg);
    background-color: var(--color-white);
    border-top: 1px solid var(--color-border);
}

.footer__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer__instagram {
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.footer__instagram:hover {
    color: var(--color-primary);
}

.footer__instagram-icon {
    width: 24px;
    height: 24px;
}

.footer__copyright {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* ========================================
   MODAL (Privacy Policy)
======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
}

.modal.is-open {
    display: flex;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-overlay);
}

.modal__content {
    position: relative;
    width: 100%;
    max-width: 700px;
    max-height: 70vh;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    overflow-y: auto;
    z-index: 2001;
}

.modal__close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 40px;
    height: 40px;
    font-size: 2rem;
    color: var(--color-text-light);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: color var(--transition-fast);
}

.modal__close:hover {
    color: var(--color-text);
}

.modal__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    padding-right: 40px;
}

.modal__body {
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--color-text);
}

.modal__body h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
}

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

.modal__body ul,
.modal__body ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.modal__body li {
    list-style: disc;
    margin-bottom: 4px;
}

.modal__body ol li {
    list-style: decimal;
}

.modal__date {
    margin-top: var(--spacing-lg);
    font-weight: 600;
}

/* Body scroll lock */
body.modal-open {
    overflow: hidden;
}

/* ========================================
   RESPONSIVE - Tablet
======================================== */
@media (max-width: 1023px) {
    :root {
        --header-height: 70px;
    }

    /* Concept */
    .concept__title-main {
        font-size: 2rem;
    }

    /* Service */
    .service__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .service__item--musubu .service__item-title--jp {
        writing-mode: horizontal-tb;
    }

    /* Strength */
    .strength__layout {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }

    .strength__right {
        padding-top: 0;
    }

    .strength__center {
        grid-column: 1 / -1;
        order: -1;
    }

    .strength__item--01,
    .strength__item--03 {
        text-align: left;
    }

    /* Company */
    .company__content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    /* Contact */
    .contact__inner {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .contact__left {
        text-align: center;
    }

    .contact__illustration {
        position: relative;
        left: auto;
        margin: 0 auto var(--spacing-md);
        width: 200px;
    }

    .contact__header {
        padding-top: 0;
    }

    .contact__checkbox-group {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   RESPONSIVE - Mobile
======================================== */
@media (max-width: 767px) {
    :root {
        --header-height: 60px;
    }

    /* Header */
    .header__inner {
        padding: 0 20px;
    }

    .header__logo-img {
        height: 35px;
    }

    .header__hamburger {
        width: 40px;
        height: 40px;
        gap: 6px;
    }

    .header__hamburger-line {
        width: 28px;
    }

    /* Hero */
    .hero__copy-text {
        font-size: 1.5rem;
        letter-spacing: 0.2em;
    }

    .hero__logo-text {
        width: 220px;
    }

    .hero__logo-symbol {
        width: 70px;
    }

    .hero__scroll {
        right: 20px;
        bottom: 30px;
    }

    .hero__scroll-text {
        font-size: 0.875rem;
    }

    .hero__scroll-arrow {
        width: 35px;
    }

    /* Concept */
    .concept {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    .concept__title-main {
        font-size: 1.5rem;
    }

    .concept__title-sub {
        font-size: 1rem;
    }

    .concept__text-title {
        font-size: 1.25rem;
    }

    .concept__text-body {
        font-size: 0.875rem;
        text-align: left;
    }

    .concept__text-body br {
        display: none;
    }

    /* Service */
    /* Service - モバイル縦積み配置 */
    .service {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    /* Service - モバイル縦積み配置 */
    .service {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    /* グリッドをflexboxに変更して縦積み */
    .service__grid {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-lg);
        /* Service項目との間に余白確保 */
    }

    /* モバイル用タイトル（グリッド外）を表示 */
    .service__main-title--mobile {
        display: block;
        order: 1;
        font-size: 2rem;
        text-align: center;
        margin-bottom: var(--spacing-md);
    }

    /* PC用タイトル（グリッド内center）は非表示 */
    .service__item--center {
        display: none !important;
    }

    /* サービス項目のスタイル調整 */
    .service__item {
        width: 100%;
        text-align: left;
        padding: var(--spacing-md);
    }

    .service__item-title--en {
        font-size: 1.25rem;
    }

    .service__item-subtitle {
        font-size: 0.875rem;
    }

    .service__item-desc {
        font-size: 0.8125rem;
        word-wrap: break-word;
        /* 長いテキストを折り返し */
    }

    /* PC用要素をモバイルで非表示 */
    .service__item--tsunagu,
    .service__item--musubu,
    .service__item--illustration,
    .service__item--center {
        display: none !important;
    }

    /* サービス項目の順序 */
    .service__item--web1 {
        order: 4;
    }

    /* WEB DESIGN */
    .service__item--web2 {
        order: 5;
    }

    /* GRAPHIC DESIGN */
    .service__item--branding {
        order: 6;
    }

    /* BRANDING */
    .service__item--operation {
        order: 7;
    }

    /* OPERATION IMPROVEMENT SUPPORT */
    .service__item--marketing {
        order: 8;
    }

    /* MARKETING */

    /* サービス項目のスタイル調整 */
    .service__item {
        text-align: left;
        padding: var(--spacing-sm);
        /* パディング削減 */
        margin-bottom: var(--spacing-xs);
        /* 余白削減 */
    }

    .service__item-title--en {
        font-size: 1.25rem;
    }

    .service__item-subtitle {
        font-size: 0.875rem;
    }

    .service__item-desc {
        font-size: 0.8125rem;
    }

    /* イラストを非表示 */
    .service__item--illustration {
        display: none !important;
    }

    /* サービス項目の順序 */
    .service__item--web1 {
        order: 4;
    }

    /* WEB DESIGN */
    .service__item--web2 {
        order: 5;
    }

    /* GRAPHIC DESIGN */
    .service__item--branding {
        order: 6;
    }

    /* BRANDING */
    .service__item--operation {
        order: 7;
    }

    /* OPERATION IMPROVEMENT SUPPORT */
    .service__item--marketing {
        order: 8;
    }

    /* MARKETING */

    /* サービス項目のスタイル調整 */
    .service__item {
        text-align: left;
        padding: var(--spacing-md);
    }

    .service__item-title--en {
        font-size: 1.25rem;
    }

    .service__item-subtitle {
        font-size: 0.875rem;
    }

    .service__item-desc {
        font-size: 0.8125rem;
    }

    /* Strength - モバイル縦積み配置 */
    .strength {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    /* PC用イラストを非表示 */
    .strength__illustration--pc {
        display: none !important;
    }

    /* モバイル用イラストを表示 */
    .strength__illustration--mobile {
        display: flex !important;
        justify-content: center;
        align-items: center;
        width: 100%;
        max-width: 400px;
        margin: var(--spacing-xl) auto;
        order: 3;
        /* 01, 02の後に配置 */
    }

    .strength__illustration-svg-mobile {
        width: 100%;
        height: auto;
    }

    /* グリッドを縦積みに変更 */
    .strength__grid {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-lg);
        padding-bottom: 0;
    }

    /* 表示順を制御 */
    .strength__item--01 {
        order: 1;
        text-align: left !important;
        align-self: initial;
        justify-self: initial;
    }

    .strength__item--02 {
        order: 2;
        text-align: left !important;
        align-self: initial;
        justify-self: initial;
    }

    .strength__item--03 {
        order: 4;
        text-align: left !important;
        align-self: initial;
        justify-self: initial;
    }

    .strength__item--04 {
        order: 5;
        text-align: left !important;
        align-self: initial;
        justify-self: initial;
    }

    /* タイトルを上部に配置 */
    .strength__main-title {
        position: static;
        transform: none;
        font-size: 1.75rem;
        margin-bottom: var(--spacing-lg);
        text-align: center;
    }

    .strength__inner {
        flex-direction: column;
        min-height: auto;
    }

    .strength__item {
        width: 100%;
        text-align: left !important;
        padding: var(--spacing-md);
        /* Service項目と同じpadding */
    }

    .strength__item-number {
        font-size: 2.5rem;
    }

    /* Company - モバイル対応 */
    .company {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    /* ロゴをSPサイズのみ削除 */
    .company__logo {
        display: none !important;
    }

    .company__title {
        font-size: 2rem;
        text-align: center;
        margin-bottom: var(--spacing-lg);
    }

    .company__table th {
        width: 80px;
        font-size: 0.75rem;
    }

    .company__table td {
        font-size: 0.8125rem;
    }

    /* Contact - モバイル1カラム対応 */
    .contact {
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    /* コンテンツを縦積みに */
    .contact__content {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .contact__left,
    .contact__right {
        width: 100%;
    }

    .contact__title {
        font-size: 2rem;
        text-align: center;
        margin-bottom: var(--spacing-lg);
    }

    /* 姓名とふりがなの入力欄を縦積みに */
    .contact__input-row {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .contact__input-row .contact__input {
        width: 100%;
    }

    .contact__checkbox-group {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    /* Footer */
    .footer {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    /* Modal */
    .modal {
        padding: var(--spacing-sm);
    }

    .modal__content {
        padding: var(--spacing-md);
        max-height: 80vh;
    }

    .modal__title {
        font-size: 1.125rem;
    }
}

/* ========================================
   ANIMATIONS
======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOutLeft {
    from {
        opacity: 1;
        transform: translateX(0);
    }

    to {
        opacity: 0;
        transform: translateX(-100px);
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

/* Scroll indicator animation */
.hero__scroll-arrow {
    animation: bounce 2s infinite;
}