/* ============================================
   L.S.Bank Theme - Dark & Orange Design
   Based on Concept3 Prototype
   ============================================ */

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

::selection {
    background-color: #FF6B00;
    color: #fff;
}

:root {
    --color-primary: #FF6B00;
    --color-primary-light: #FF8533;
    --color-primary-gradient: linear-gradient(to right, #FF6B00, #FFB800);
    --color-bg: #0A0A0A;
    --color-bg-alt: #111111;
    --color-bg-card: #1A1A1A;
    --color-text: #ffffff;
    --color-text-muted: #9ca3af;
    --color-text-dim: #6b7280;
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-dim: rgba(255, 255, 255, 0.05);
    --font-sans: "Inter", "Noto Sans JP", ui-sans-serif, system-ui, sans-serif;
    --container-max: 1400px;
    --container-padding: 1.5rem;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

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

a {
    color: inherit;
    text-decoration: none;
}

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

/* --- Header --- */
.site-header {
    position: fixed;
    top: 2.5rem;
    left: 0;
    right: 0;
    z-index: 50;
    mix-blend-mode: difference;
}

.site-header__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 6rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-header__logo a,
.site-header__logo {
    font-size: 1.875rem;
    font-weight: 900;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #fff;
}

.logo-accent {
    color: var(--color-primary);
}

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

.site-header__nav .nav-menu li a {
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: color 0.3s;
}

.site-header__nav .nav-menu li a:hover {
    color: var(--color-primary);
}

.site-header__cta {
    display: none;
    border: 2px solid #fff;
    padding: 0.75rem 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.875rem;
    transition: all 0.3s;
}

.site-header__cta:hover {
    background: #fff;
    color: #000;
}

/* Hamburger */
.site-header__hamburger {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.site-header__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    transition: all 0.3s;
}

.site-header__hamburger.is-active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}
.site-header__hamburger.is-active span:nth-child(2) {
    opacity: 0;
}
.site-header__hamburger.is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Nav */
.site-header__nav .nav-menu.is-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 100;
}

.site-header__nav .nav-menu.is-open li a {
    font-size: 1.5rem;
}

@media (min-width: 768px) {
    .site-header__nav .nav-menu {
        display: flex;
    }

    .site-header__cta {
        display: block;
    }

    .site-header__hamburger {
        display: none;
    }
}

/* --- Hero --- */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
}

.hero__bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, #000, rgba(0, 0, 0, 0.8), transparent);
}

.hero__content {
    position: relative;
    z-index: 10;
    width: 100%;
}

.hero__text {
    max-width: 56rem;
}

.hero__heading {
    font-size: clamp(3.5rem, 10vw, 8rem);
    font-weight: 900;
    line-height: 0.85;
    letter-spacing: -0.05em;
    margin-bottom: 2rem;
}

.hero__heading-accent {
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero__subheading {
    font-size: clamp(1.25rem, 2.5vw, 1.875rem);
    font-weight: 700;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    max-width: 40rem;
    line-height: 1.4;
}

.hero__actions {
    display: flex;
    gap: 1.5rem;
}

.hero__scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.5;
}

.hero__scroll-text {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    writing-mode: vertical-rl;
    margin-bottom: 1rem;
}

.hero__scroll-line {
    width: 1px;
    height: 4rem;
    background: #fff;
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn--primary {
    background: var(--color-primary);
    color: #fff;
    padding: 1rem 2rem;
}

.btn--primary:hover {
    background: var(--color-primary-light);
}

.btn--lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn__icon {
    width: 1.5rem;
    height: 1.5rem;
}

/* --- Section --- */
.section {
    padding: 10rem 0;
    position: relative;
    overflow: hidden;
}

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

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

.section--bordered {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section__label {
    display: block;
    color: var(--color-primary);
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.section__title {
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.05em;
}

.section__divider {
    width: 5rem;
    height: 0.5rem;
    background: var(--color-primary);
    margin: 2.5rem 0;
}

.section__header {
    margin-bottom: 5rem;
}

.section__header--split {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.section__header--center {
    text-align: center;
    margin-bottom: 8rem;
}

.section__description {
    color: var(--color-text-muted);
    max-width: 28rem;
    font-size: 1.125rem;
}

@media (min-width: 768px) {
    .section__header--split {
        flex-direction: row;
        align-items: flex-end;
        justify-content: space-between;
    }
}

/* --- Philosophy --- */
.philosophy__skew-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: var(--color-bg-alt);
    transform: skewX(-12deg) translateX(2rem);
}

@media (min-width: 1024px) {
    .philosophy__skew-bg {
        transform: skewX(-12deg) translateX(8rem);
    }
}

.philosophy__grid {
    display: grid;
    gap: 5rem;
    align-items: center;
}

.philosophy__title {
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 1;
    margin-bottom: 2.5rem;
}

.philosophy__subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.philosophy__text {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    max-width: 36rem;
}

.philosophy__image-wrap {
    position: relative;
    aspect-ratio: 4 / 5;
    overflow: hidden;
}

.philosophy__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: all 0.7s;
    transform: scale(1.05);
}

.philosophy__image-wrap:hover .philosophy__image {
    filter: grayscale(0%);
    transform: scale(1);
}

.philosophy__image-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 107, 0, 0.2);
    mix-blend-mode: overlay;
    opacity: 0;
    transition: opacity 0.7s;
}

.philosophy__image-wrap:hover .philosophy__image-overlay {
    opacity: 1;
}

@media (min-width: 1024px) {
    .philosophy__grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* --- Services --- */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.service-card {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--color-bg-card);
    cursor: pointer;
}

.service-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
    transition: opacity 0.5s;
}

.service-card:hover .service-card__image {
    opacity: 1;
}

.service-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, #000, rgba(0, 0, 0, 0.5), transparent);
    opacity: 0.8;
}

.service-card__content {
    position: absolute;
    inset: 0;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.service-card__number {
    color: var(--color-primary);
    font-weight: 900;
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
    transform: translateY(1rem);
    transition: all 0.5s;
}

.service-card:hover .service-card__number {
    opacity: 1;
    transform: translateY(0);
}

.service-card__title {
    font-size: 1.875rem;
    font-weight: 700;
    transform: translateY(1rem);
    transition: transform 0.5s 0.075s;
}

.service-card:hover .service-card__title {
    transform: translateY(0);
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* --- Strengths --- */
.strengths-grid {
    display: grid;
    gap: 4rem;
}

.strength-card {
    position: relative;
}

.strength-card__glow {
    position: absolute;
    inset: -1rem;
    background: linear-gradient(to bottom, rgba(255, 107, 0, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.5s;
    filter: blur(40px);
}

.strength-card:hover .strength-card__glow {
    opacity: 1;
}

.strength-card__inner {
    position: relative;
    z-index: 10;
}

.strength-card__number {
    color: var(--color-primary);
    font-weight: 900;
    font-size: 5rem;
    margin-bottom: 2rem;
    opacity: 0.2;
    transition: opacity 0.5s;
    line-height: 1;
}

.strength-card:hover .strength-card__number {
    opacity: 1;
}

.strength-card__title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.strength-card__text {
    color: var(--color-text-muted);
    font-size: 1.125rem;
    line-height: 1.8;
}

@media (min-width: 1024px) {
    .strengths-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* --- Company --- */
.company__grid {
    display: grid;
    gap: 5rem;
}

.company__divider {
    width: 100%;
    height: 1px;
    background: var(--color-border);
    margin: 3rem 0;
}

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

.company__detail-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.company__detail-label {
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.875rem;
}

.company__detail-value {
    font-size: 1.25rem;
}

.company__detail-value--bold {
    font-weight: 700;
}

.company__detail-value--partners {
    color: var(--color-text-muted);
    line-height: 1.8;
    font-size: 1rem;
}

.company__detail-separator {
    width: 100%;
    height: 1px;
    background: var(--color-border-dim);
}

.company__methods {
    background: var(--color-bg-card);
    padding: 3rem;
    border: 1px solid var(--color-border-dim);
    position: relative;
    overflow: hidden;
}

.company__methods-glow {
    position: absolute;
    top: 0;
    right: 0;
    width: 16rem;
    height: 16rem;
    background: rgba(255, 107, 0, 0.1);
    filter: blur(60px);
    border-radius: 50%;
}

.company__methods-title {
    font-size: 1.875rem;
    font-weight: 900;
    margin-bottom: 2rem;
    position: relative;
    z-index: 10;
}

.company__methods-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: relative;
    z-index: 10;
}

.method-item {
    display: flex;
    gap: 1.5rem;
}

.method-item__icon {
    width: 3rem;
    height: 3rem;
    min-width: 3rem;
    background: rgba(255, 107, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.method-item__icon svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--color-primary);
}

.method-item__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

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

@media (min-width: 768px) {
    .company__detail-row {
        grid-template-columns: 1fr 2fr;
    }
}

@media (min-width: 1024px) {
    .company__grid {
        grid-template-columns: 1fr 1fr;
    }

    .company__methods {
        padding: 3rem 4rem;
    }
}

/* --- Footer --- */
.site-footer {
    background: var(--color-bg);
    padding: 5rem 0;
    border-top: 1px solid var(--color-border);
}

.site-footer__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.site-footer__logo {
    font-size: 2.25rem;
    font-weight: 900;
    letter-spacing: -0.05em;
    text-transform: uppercase;
}

.site-footer__copyright {
    color: var(--color-text-dim);
    font-weight: 700;
    letter-spacing: 0.15em;
    font-size: 0.875rem;
    text-transform: uppercase;
}

@media (min-width: 768px) {
    .site-footer__inner {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* --- Blog --- */
.blog-archive {
    padding: 8rem 0 4rem;
}

.blog-archive__title {
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: -0.05em;
    margin-bottom: 3rem;
}

.blog-grid {
    display: grid;
    gap: 2rem;
}

.blog-card {
    background: var(--color-bg-card);
    overflow: hidden;
    border: 1px solid var(--color-border-dim);
    transition: border-color 0.3s;
}

.blog-card:hover {
    border-color: var(--color-primary);
}

.blog-card__image img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.blog-card__content {
    padding: 1.5rem;
}

.blog-card__date {
    font-size: 0.875rem;
    color: var(--color-text-dim);
}

.blog-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0.75rem 0;
}

.blog-card__title a:hover {
    color: var(--color-primary);
}

.blog-card__excerpt {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* --- Single Post --- */
.single-post {
    padding: 8rem 0 4rem;
}

.single-post__header {
    margin-bottom: 3rem;
}

.single-post__date {
    font-size: 0.875rem;
    color: var(--color-text-dim);
    display: block;
    margin-bottom: 1rem;
}

.single-post__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.03em;
}

.single-post__thumbnail img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    margin-bottom: 3rem;
}

.single-post__content {
    max-width: 48rem;
    color: var(--color-text-muted);
    font-size: 1.125rem;
    line-height: 1.8;
}

.single-post__content h2,
.single-post__content h3 {
    color: var(--color-text);
    margin: 2rem 0 1rem;
}

.single-post__content p {
    margin-bottom: 1.5rem;
}

.single-post__content a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* --- Page --- */
.page-content {
    padding: 8rem 0 4rem;
}

.page-content__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 3rem;
}

.page-content__body {
    max-width: 48rem;
    color: var(--color-text-muted);
    font-size: 1.125rem;
    line-height: 1.8;
}

/* --- Pagination --- */
.pagination {
    margin-top: 3rem;
}

.pagination .nav-links {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border: 1px solid var(--color-border);
    font-weight: 700;
    transition: all 0.3s;
}

.pagination .page-numbers.current,
.pagination .page-numbers:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

/* --- Animations --- */
[data-animate] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-animate="fade-left"] {
    transform: translateX(-50px);
}

[data-animate].is-visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* --- WordPress Specifics --- */
.wp-block-image img {
    max-width: 100%;
    height: auto;
}

.aligncenter {
    text-align: center;
}

.alignleft {
    float: left;
    margin-right: 1.5rem;
}

.alignright {
    float: right;
    margin-left: 1.5rem;
}

/* Screen reader text */
.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
}

/* --- Contact Form 7 (Dark Theme) --- */
.page-content .wpcf7-form {
    max-width: 640px;
    margin: 0 auto;
}

.page-content .wpcf7-field-group {
    margin-bottom: 1.5rem;
}

.page-content .wpcf7-form label {
    display: block;
    color: var(--color-text);
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.page-content .wpcf7-form .required {
    color: var(--color-primary);
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

.page-content .wpcf7-form input[type="text"],
.page-content .wpcf7-form input[type="email"],
.page-content .wpcf7-form input[type="tel"],
.page-content .wpcf7-form input[type="url"],
.page-content .wpcf7-form input[type="number"],
.page-content .wpcf7-form select,
.page-content .wpcf7-form textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
    border-radius: 0;
}

.page-content .wpcf7-form input:focus,
.page-content .wpcf7-form select:focus,
.page-content .wpcf7-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.page-content .wpcf7-form textarea {
    min-height: 160px;
    resize: vertical;
}

.page-content .wpcf7-form select {
    cursor: pointer;
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
                      linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
    background-position: calc(100% - 1.25rem) 1.1rem, calc(100% - 0.75rem) 1.1rem;
    background-size: 0.5rem 0.5rem;
    background-repeat: no-repeat;
    padding-right: 2.5rem;
}

.page-content .wpcf7-form select option {
    background: var(--color-bg-card);
    color: var(--color-text);
}

.page-content .wpcf7-submit-wrap {
    text-align: center;
    margin-top: 2.5rem;
}

.page-content .wpcf7-form input[type="submit"] {
    background: var(--color-primary);
    color: #fff;
    border: none;
    padding: 1rem 3rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.3s;
    font-family: inherit;
    font-size: 1rem;
}

.page-content .wpcf7-form input[type="submit"]:hover {
    background: var(--color-primary-light);
}

.page-content .wpcf7-form input[type="submit"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.wpcf7-not-valid-tip {
    color: #ff6b6b !important;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

.wpcf7 form .wpcf7-response-output {
    border: 1px solid var(--color-border) !important;
    padding: 1rem !important;
    margin: 2rem 0 0 !important;
    color: var(--color-text);
    font-size: 0.9375rem;
    background: var(--color-bg-card);
}

.wpcf7 form.sent .wpcf7-response-output {
    border-color: var(--color-primary) !important;
    color: var(--color-primary);
}

.wpcf7 form.invalid .wpcf7-response-output,
.wpcf7 form.unaccepted .wpcf7-response-output,
.wpcf7 form.failed .wpcf7-response-output {
    border-color: #ff6b6b !important;
    color: #ff6b6b;
}

.wpcf7-spinner {
    background-color: var(--color-primary) !important;
}

/* プレースホルダーのカラー */
.page-content .wpcf7-form input::placeholder,
.page-content .wpcf7-form textarea::placeholder {
    color: var(--color-text-dim);
}