/* ========================================
   BASE CSS — Global Styles
   Agument Recruit & Corporate Site
   ======================================== */

html {
    scroll-behavior: smooth;
}

html * {
    letter-spacing: 0 !important;
}

body {
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    font-size: var(--fs-body);
    color: var(--text-primary);
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* --- Section Base --- */
.section {
    padding: var(--space-section) 0;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.section--white {
    background-color: rgba(255, 255, 255, 0.92);
}

.section--green {
    background-color: var(--bg-light-green);
}

.section--dark {
    background-color: var(--bg-dark);
    color: var(--text-white);
}

.section--navy {
    background-color: var(--color-navy);
    color: var(--text-white);
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--padding-x);
}

.container--narrow {
    max-width: var(--max-width-narrow);
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-header__en {
    font-family: var(--font-heading-en);
    font-size: var(--fs-section-title-en);
    font-weight: var(--fw-black);
    color: var(--color-navy);
    line-height: 1.2;
    margin-bottom: var(--space-xs);
}

.section--dark .section-header__en,
.section--navy .section-header__en {
    color: var(--text-white);
}

.section-header__jp {
    font-family: var(--font-heading-jp);
    font-size: var(--fs-section-title-jp);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
}

.section--dark .section-header__jp,
.section--navy .section-header__jp {
    color: var(--text-on-dark);
}

.section-header__line {
    display: block;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    margin: var(--space-sm) auto 0;
    border-radius: 2px;
}

/* --- Typography --- */
.heading-xl {
    font-family: var(--font-heading-jp);
    font-size: var(--fs-hero);
    font-weight: var(--fw-bold);
    line-height: 1.3;
}

.heading-lg {
    font-family: var(--font-heading-jp);
    font-size: var(--fs-h2);
    font-weight: var(--fw-bold);
    line-height: 1.4;
}

.heading-md {
    font-family: var(--font-heading-jp);
    font-size: var(--fs-h3);
    font-weight: var(--fw-semibold);
    line-height: 1.5;
}

.heading-sm {
    font-family: var(--font-heading-jp);
    font-size: var(--fs-h4);
    font-weight: var(--fw-semibold);
    line-height: 1.5;
}

.text-body {
    font-size: var(--fs-body);
    line-height: 1.9;
    color: var(--text-primary);
}

.text-lead {
    font-size: 1.08rem;
    line-height: 2;
    color: var(--text-secondary);
}

.text-small {
    font-size: var(--fs-small);
    color: var(--text-light);
}

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

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

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem 2.4rem;
    font-family: var(--font-heading-jp);
    font-size: 0.95rem;
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-pill);
    transition: all var(--transition-base);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--color-primary);
    color: var(--text-white);
    box-shadow: 0 4px 12px rgba(45, 140, 78, 0.3);
}

.btn--primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(45, 140, 78, 0.4);
}

.btn--outline {
    background: transparent;
    color: var(--color-navy);
    border: 2px solid var(--color-navy);
}

.btn--outline:hover {
    background: var(--color-navy);
    color: var(--text-white);
    transform: translateY(-2px);
}

.btn--white {
    background: var(--bg-white);
    color: var(--color-navy);
    box-shadow: var(--shadow-md);
}

.btn--white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--text-primary);
}

.btn--ghost:hover {
    background: var(--text-primary);
    color: var(--text-white);
}

.btn__arrow {
    display: inline-block;
    transition: transform var(--transition-fast);
}

.btn:hover .btn__arrow {
    transform: translateX(4px);
}

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-smooth);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.card__body {
    padding: var(--space-md) var(--space-lg);
}

/* --- Tags / Labels --- */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-pill);
}

.tag--green {
    background: var(--bg-light-green);
    color: var(--color-primary-dark);
}

.tag--navy {
    background: var(--bg-light-blue);
    color: var(--color-navy);
}

.tag--gold {
    background: #FFF8E7;
    color: var(--color-accent-gold);
}

/* --- Grid System --- */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

/* --- スクロール連動 アピアランス Animation ---
   ・easing: cubic-bezier(0.215, 0.61, 0.355, 1) = easeOutCubic
     → 最初の立ち上がりが控えめで、後半まで滑らかに減速。最もナチュラルな出方。
   ・距離は控えめ（24〜28px）にして、視覚的なジャンプを抑える
   ・duration は 1.4〜1.5s で、目で追える「気持ちいい速度」
*/
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 1.4s cubic-bezier(0.215, 0.61, 0.355, 1),
                transform 1.4s cubic-bezier(0.215, 0.61, 0.355, 1);
    will-change: opacity, transform;
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-32px);
    transition: opacity 1.5s cubic-bezier(0.215, 0.61, 0.355, 1),
                transform 1.5s cubic-bezier(0.215, 0.61, 0.355, 1);
    will-change: opacity, transform;
}

.fade-in-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(32px);
    transition: opacity 1.5s cubic-bezier(0.215, 0.61, 0.355, 1),
                transform 1.5s cubic-bezier(0.215, 0.61, 0.355, 1);
    will-change: opacity, transform;
}

.fade-in-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.zoom-in {
    opacity: 0;
    transform: scale(0.96);
    transition: opacity 1.5s cubic-bezier(0.215, 0.61, 0.355, 1),
                transform 1.5s cubic-bezier(0.215, 0.61, 0.355, 1);
    will-change: opacity, transform;
}

.zoom-in.is-visible {
    opacity: 1;
    transform: scale(1);
}

/* OS設定で「動き軽減」がONの人にはアニメを無効化（アクセシビリティ） */
@media (prefers-reduced-motion: reduce) {
    .fade-in, .fade-in-left, .fade-in-right, .zoom-in {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* Stagger children animation — リズム感ある順次出現（0.15s刻み） */
.stagger-children .fade-in:nth-child(1),
.stagger-children .zoom-in:nth-child(1) {
    transition-delay: 0.1s;
}

.stagger-children .fade-in:nth-child(2),
.stagger-children .zoom-in:nth-child(2) {
    transition-delay: 0.25s;
}

.stagger-children .fade-in:nth-child(3),
.stagger-children .zoom-in:nth-child(3) {
    transition-delay: 0.4s;
}

.stagger-children .fade-in:nth-child(4),
.stagger-children .zoom-in:nth-child(4) {
    transition-delay: 0.55s;
}

.stagger-children .fade-in:nth-child(5),
.stagger-children .zoom-in:nth-child(5) {
    transition-delay: 0.7s;
}

.stagger-children .fade-in:nth-child(6),
.stagger-children .zoom-in:nth-child(6) {
    transition-delay: 0.85s;
}

.stagger-children .fade-in:nth-child(7),
.stagger-children .zoom-in:nth-child(7) {
    transition-delay: 1.0s;
}

.stagger-children .fade-in:nth-child(8),
.stagger-children .zoom-in:nth-child(8) {
    transition-delay: 1.15s;
}

.stagger-children .fade-in:nth-child(9),
.stagger-children .zoom-in:nth-child(9) {
    transition-delay: 1.3s;
}

.stagger-children .fade-in:nth-child(10),
.stagger-children .zoom-in:nth-child(10) {
    transition-delay: 0.5s;
}

.stagger-children .fade-in:nth-child(11),
.stagger-children .zoom-in:nth-child(11) {
    transition-delay: 0.55s;
}

.stagger-children .fade-in:nth-child(12),
.stagger-children .zoom-in:nth-child(12) {
    transition-delay: 0.6s;
}

/* --- Decorative Elements --- */
.deco-leaf {
    position: absolute;
    opacity: 0.08;
    pointer-events: none;
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

/* --- Responsive Grid --- */
@media (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* --- Global Background Decoration --- */
.bg-decoration {
    display: none;
}

.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: float-blob 20s infinite alternate ease-in-out;
}

.bg-blob--1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(45, 140, 78, 0.1) 0%, transparent 70%);
    animation-duration: 25s;
}

.bg-blob--2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(230, 245, 255, 0.8) 0%, transparent 70%);
    animation-duration: 30s;
    animation-delay: -5s;
}

.bg-blob--3 {
    top: 40%;
    left: 20%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(255, 248, 231, 0.8) 0%, transparent 70%);
    opacity: 0.4;
    animation-duration: 35s;
    animation-delay: -10s;
}

@keyframes float-blob {
    0% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(40px, -50px) scale(1.1);
    }

    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }

    100% {
        transform: translate(0, 0) scale(1);
    }
}