/**
 * WEB図鑑 - Responsive Styles
 * レスポンシブ用スタイルをまとめたファイル
 */

/* ============================================
   Extra Large (min-width: 1600px)
   ============================================ */
@media (min-width: 1600px) {
  .p_works--fullwidth .p_works__grid {
    column-count: 6;
  }
}

/* ============================================
   Large (max-width: 1200px)
   ============================================ */
@media (max-width: 1200px) {
  /* Works Grid */
  .p_works__grid {
    column-count: 4;
  }
  .p_works--fullwidth .p_works__grid {
    column-count: 4;
  }

  /* Category Grid */
  .p_category__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================
   Tablet (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
  /* Header - Mobile Menu */
  .l_header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 80px 24px 32px;
    gap: 0;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
    transition: right 0.3s ease;
    z-index: 999;
    overflow-y: auto;
  }

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

  .l_header__nav--link {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-gray-200);
    border-radius: 0;
    font-size: 13px;
  }

  .l_header__nav--link:last-child {
    border-bottom: none;
  }

  .l_header__nav--link:hover {
    background: transparent;
    color: var(--color-primary);
  }

  .l_header__cta {
    display: none;
  }

  .l_header__menu {
    display: flex;
  }

  /* Mobile menu overlay */
  .l_header__overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 998;
  }

  .l_header__overlay.is-open {
    opacity: 1;
    visibility: visible;
  }

  /* Hamburger animation */
  .l_header__menu.is-active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .l_header__menu.is-active span:nth-child(2) {
    opacity: 0;
  }

  .l_header__menu.is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Mobile menu close button */
  .l_header__nav-close {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: var(--color-gray-100);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-base);
  }

  .l_header__nav-close:hover {
    background: var(--color-gray-200);
  }

  .l_header__nav-close svg {
    color: var(--color-gray-700);
  }

  /* Mobile menu CTA */
  .l_header__nav-cta {
    display: block;
    padding-top: 24px;
  }

  .l_header__nav-cta .c_btn {
    width: 100%;
    justify-content: center;
    padding: 10px 16px;
  }

  /* Works Grid */
  .p_works__grid {
    column-count: 3;
  }

  /* Event Grid */
  .p_event__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Company Grid */
  .p_company__grid {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .l_footer__inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .l_footer__nav {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Work Detail */
  .p_work-detail__company--card {
    grid-template-columns: 200px 1fr;
  }
  
  .p_work-detail__company--side {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
  }
  
  .p_work-detail__company--actions {
    flex-direction: row;
    width: auto;
  }

  /* Company Detail */
  .p_company-detail__works-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .p_company-detail__about {
    grid-template-columns: 1fr;
  }
  
  .p_company-detail__about--map {
    order: -1;
  }

  /* Event Detail */
  .p_event-detail__inner {
    grid-template-columns: 1fr;
  }
  
  .p_event-detail__sidebar {
    position: static;
  }
  
  .p_event__grid--3col {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Mypage */
  .p_mypage {
    grid-template-columns: 1fr;
  }
  
  .p_mypage__sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-md);
  }
  
  .p_mypage__nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
  }
  
  .p_mypage__public-link {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
  }
  
  .p_dashboard__stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .p_dashboard__limits-grid {
    grid-template-columns: 1fr;
  }

  .p_dashboard__limits-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  /* News Detail */
  .p_news-detail__inner {
    grid-template-columns: 1fr;
  }
  
  .p_news-detail__sidebar {
    position: static;
  }

  /* Magazine */
  .p_magazine-hero__inner {
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-2xl);
  }

  .p_magazine-contents__grid {
    grid-template-columns: 1fr;
  }

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

  .p_magazine-request__inner {
    grid-template-columns: 1fr;
  }

  .p_magazine-request__image {
    display: none;
  }

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

/* ============================================
   Mobile (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
  :root {
    --container-padding: 12px;
  }

  /* Header */
  .l_header__inner {
    height: 56px;
  }

  .l_header__logo img {
    height: 32px;
  }

  .l_header__nav {
    padding-top: 56px;
  }

  /* Hero */
  .p_hero {
    height: auto;
    min-height: auto;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: 56px;
  }

  .p_hero__title {
    font-size: 22px;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
  }

  .p_hero__subtitle {
    font-size: 12px;
    margin-bottom: var(--spacing-md);
  }

  .p_hero__search {
    margin-bottom: var(--spacing-sm);
    max-width: 100%;
  }

  .p_hero__search--box {
    padding: 4px;
    border-radius: var(--radius-lg);
  }

  .p_hero__search--box input {
    font-size: 13px;
    padding: 10px 12px;
  }

  .p_hero__search--btn {
    padding: 10px 14px;
    border-radius: var(--radius-md);
  }

  .p_hero__search--btn svg {
    width: 18px;
    height: 18px;
  }

  .p_hero__tags {
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px;
  }

  .p_hero__tags--label {
    width: 100%;
    text-align: center;
    margin-bottom: 2px;
    font-size: 10px;
  }

  .p_hero__tags--item {
    font-size: 10px;
    padding: 3px 8px;
  }

  /* Filter */
  .p_filter {
    position: sticky;
    top: 56px;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 90;
  }

  .p_filter__inner {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 6px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .p_filter__inner::-webkit-scrollbar {
    display: none;
  }

  .p_filter__group {
    flex: 0 0 auto;
    flex-direction: row;
    align-items: center;
    gap: 0;
  }

  .p_filter__group--label {
    display: none;
  }

  .p_filter__group--select {
    width: auto;
    min-width: 80px;
    padding: 6px 24px 6px 8px;
    font-size: 11px;
    border-radius: 20px;
    background-position: right 6px center;
    background-size: 12px;
  }

  .p_filter__reset {
    flex: 0 0 auto;
    padding: 6px 12px;
    font-size: 11px;
    border-radius: 20px;
    white-space: nowrap;
  }

  /* Works Grid */
  .p_works {
    padding: var(--spacing-sm) 0;
  }

  .p_works--fullwidth {
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
  }

  .p_works__grid,
  .p_works--fullwidth .p_works__grid {
    column-count: 2;
    column-gap: 10px;
  }

  .p_works__card {
    margin-bottom: 10px;
    break-inside: avoid;
  }

  .p_works__card--image {
    border-radius: 12px;
  }

  .p_works__card--overlay {
    padding: 8px;
  }

  .p_works__card--title {
    font-size: 11px;
    line-height: 1.3;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .p_works__card--company {
    gap: 6px;
  }

  .p_works__card--logo {
    width: 20px;
    height: 20px;
  }

  .p_works__card--name {
    font-size: 10px;
  }

  .p_works__card--area {
    font-size: 9px;
  }

  .p_works__card--category {
    font-size: 9px;
    padding: 2px 5px;
  }

  .p_works__card--categories {
    gap: 3px;
  }

  .p_works__card--save {
    width: 24px;
    height: 24px;
    font-size: 12px;
  }

  .p_works__more {
    padding: var(--spacing-xl) 0;
    margin-top: 0;
  }

  /* Category */
  .p_category {
    padding: var(--spacing-2xl) 0;
  }

  .p_category__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xs);
  }

  .p_category__card--name {
    font-size: 10px;
  }

  /* Event */
  .p_event {
    padding: var(--spacing-2xl) 0;
  }

  .p_event__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md) var(--spacing-sm);
  }

  .p_event__card--content {
    padding: 10px;
  }

  .p_event__card--date {
    font-size: 10px;
  }

  .p_event__card--company {
    font-size: 10px;
  }

  .p_event__card--title {
    font-size: 13px;
  }

  .p_event__grid--3col {
    grid-template-columns: 1fr;
  }

  .p_event-detail__date--large {
    font-size: 24px;
  }

  .p_event-detail__title {
    font-size: 22px;
  }

  /* Company */
  .p_company {
    padding: var(--spacing-2xl) 0;
  }

  .p_company__card--name {
    font-size: 13px;
  }

  .p_company__card--desc {
    font-size: 11px;
    -webkit-line-clamp: 2;
  }

  .p_company__card--tag {
    font-size: 9px;
  }

  /* Company Detail */
  .p_company-detail__header {
    min-height: 350px;
    padding-bottom: var(--spacing-2xl);
  }
  
  .p_company-detail__header--content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }
  
  .p_company-detail__header--logo {
    width: 70px;
    height: 70px;
  }
  
  .p_company-detail__header--name {
    font-size: 24px;
  }
  
  .p_company-detail__header--actions {
    width: 100%;
  }
  
  .p_company-detail__header--actions .c_btn {
    width: 100%;
    justify-content: center;
  }
  
  .p_company-detail__works-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .c_form__row {
    flex-direction: column;
    gap: 0;
  }
  
  .p_company-detail__contact--form {
    padding: var(--spacing-lg);
  }
  
  .p_company-detail__spec--label {
    width: 100px;
    padding: 10px 12px;
  }
  
  .p_company-detail__spec--value {
    padding: 10px 12px;
  }

  /* Magazine */
  .p_magazine__inner {
    flex-direction: column;
  }

  .p_magazine__visual {
    aspect-ratio: unset;
  }

  .p_magazine__visual img {
    width: 100%;
    height: auto;
    object-fit: unset;
    min-height: auto;
  }

  .p_magazine__content {
    padding: var(--spacing-md) 0;
  }

  .p_magazine__title {
    font-size: 18px;
  }

  .p_magazine__features li {
    font-size: 12px;
  }

  .p_magazine__actions {
    gap: var(--spacing-md);
    justify-content: center;
  }

  .p_magazine {
    padding: var(--spacing-2xl) var(--container-padding);
  }

  .p_magazine-hero__inner {
    grid-template-columns: 1fr;
  }

  .p_magazine-hero__cover {
    position: relative;
    top: 0;
    max-width: 280px;
    margin: 0 auto var(--spacing-xl);
  }

  .p_magazine-hero__title-main {
    font-size: 28px;
  }

  .p_magazine-hero__actions {
    flex-direction: column;
  }

  .p_magazine-contents__item {
    flex-direction: column;
  }

  .p_magazine-contents__image {
    width: 100%;
  }

  .p_magazine-contents__image img {
    height: 180px;
  }

  .p_magazine-distribution__grid {
    grid-template-columns: 1fr;
  }

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

  /* News */
  .p_news {
    padding: var(--spacing-2xl) 0;
  }

  .p_news__item {
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) 0;
  }

  .p_news__item:first-child {
    border-top: 1px solid var(--color-gray-200);
  }

  .p_news__item--title {
    width: 100%;
    order: 3;
    font-size: 12px;
    display: block;
    flex: none;
  }

  .p_news__item--date {
    font-size: 11px;
    width: 6em;
  }

  .p_news__item--category {
    font-size: 11px;
    padding: 1px 10px;
  }

  .p_news-list__item {
    flex-wrap: wrap;
  }

  .p_news-list__title {
    width: 100%;
    margin-top: var(--spacing-xs);
  }

  .p_news-detail__title {
    font-size: 22px;
  }

  /* Footer */
  .l_footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
  }

  .l_footer__inner {
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
  }

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

  .l_footer__logo img {
    height: 36px;
  }

  .l_footer__tagline {
    font-size: 11px;
    margin-bottom: var(--spacing-sm);
  }

  .l_footer__company {
    display: none;
  }

  .l_footer__nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md) var(--spacing-lg);
  }

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

  .l_footer__nav--title {
    font-size: 11px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-white);
  }

  .l_footer__nav--list {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .l_footer__nav--list li {
    margin-bottom: 0;
  }

  .l_footer__nav--list a {
    font-size: 12px;
    padding: 4px 0;
    background: none;
    border-radius: 0;
    display: block;
    color: var(--color-gray-400);
  }

  .l_footer__nav--list a:hover {
    color: var(--color-white);
  }

  .l_footer__sns {
    justify-content: center;
  }

  .l_footer__sns--link {
    width: 36px;
    height: 36px;
  }

  .l_footer__bottom {
    padding-top: var(--spacing-md);
    font-size: 10px;
  }

  /* Section Headers */
  .c_section__header {
    margin-bottom: var(--spacing-md);
  }

  .c_section__title {
    font-size: 18px;
  }

  .c_section__subtitle {
    font-size: 12px;
  }

  .c_section__label {
    font-size: 10px;
  }

  .c_section__link {
    font-size: 11px;
    padding: 7px 19px;
  }

  /* Buttons */
  .c_btn {
    font-size: 12px;
    padding: 8px 16px;
  }

  .c_btn--lg {
    padding: 8px 24px;
    font-size: 12px;
  }

  /* CTA */
  .p_cta {
    padding: var(--spacing-xl) 0;
  }

  .p_cta__title {
    font-size: 18px;
    margin-bottom: var(--spacing-sm);
  }

  .p_cta__text {
    font-size: 13px;
    margin-bottom: var(--spacing-lg);
  }

  .p_cta__subtitle {
    font-size: 12px;
  }

  /* Breadcrumb */
  .c_breadcrumb {
    top: 56px;
    padding: var(--spacing-xs) 0;
  }

  .c_breadcrumb__list {
    font-size: 10px;
  }

  /* Page Header */
  .p_page-header {
    padding: calc(56px + var(--spacing-2xl)) 0 var(--spacing-2xl);
  }

  .p_page-header__label {
    font-size: 12px;
  }
  
  .p_page-header__title {
    font-size: 24px;
    margin-bottom: var(--spacing-sm);
  }

  .p_page-header__subtitle {
    font-size: 13px;
  }

  /* Work Detail */
  .p_work-detail__2col {
    grid-template-columns: 1fr;
  }
  
  .p_work-detail__gallery {
    position: static;
  }
  
  .p_work-detail__gallery--thumbs {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .p_work-detail__title {
    font-size: 22px;
  }
  
  .p_work-detail__spec--label {
    width: 100px;
    padding: 12px 14px;
  }
  
  .p_work-detail__spec--value {
    padding: 12px 14px;
  }
  
  .p_work-detail__company--card {
    grid-template-columns: 1fr;
  }
  
  .p_work-detail__company--image {
    height: 200px;
  }
  
  .p_work-detail__company--side {
    flex-direction: column;
  }
  
  .p_work-detail__company--actions {
    flex-direction: column;
    width: 100%;
  }
  
  .p_work-detail__related--grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Page Top */
  .c_page-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
  
  .c_page-top__icon {
    width: 18px;
    height: 18px;
  }

  /* Filter Bar */
  .p_filter-bar__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Login */
  .p_login__box {
    padding: var(--spacing-lg);
  }

  /* Mypage */
  .p_mypage__main {
    padding: var(--spacing-md);
  }

  .p_dashboard__stats {
    grid-template-columns: 1fr 1fr;
  }

  .p_image-upload__grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }

  .c_form__row--3col {
    flex-direction: column;
  }

  .p_post-list__item {
    flex-wrap: wrap;
  }

  .p_post-list__actions {
    width: 100%;
    justify-content: flex-end;
    margin-top: var(--spacing-sm);
  }

  .p_mypage__toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .p_mypage__search .c_form__input {
    max-width: 100%;
  }
  
  .p_mypage__filter {
    flex-wrap: wrap;
  }
  
  .c_form__select--sm {
    min-width: 0;
    flex: 1;
  }

  /* Flow Page */
  .p_flow__step-header {
    flex-wrap: wrap;
  }

  .p_flow__step-number {
    width: 60px;
    height: 60px;
  }

  .p_flow__step-number strong {
    font-size: 22px;
  }

  .p_flow__step-icon {
    display: none;
  }

  .p_flow__step-title h2 {
    font-size: 20px;
  }

  .p_flow__step-content,
  .p_flow__step--reverse .p_flow__step-content {
    grid-template-columns: 1fr;
  }

  .p_flow__step-main,
  .p_flow__step--reverse .p_flow__step-main {
    order: 1;
  }

  .p_flow__step-image,
  .p_flow__step--reverse .p_flow__step-image {
    order: 2;
  }

  .p_flow__step-image img {
    height: 200px;
  }

  .p_flow__documents-grid,
  .p_flow__procedures-list {
    grid-template-columns: 1fr;
  }

  .p_flow__cta {
    flex-direction: column;
    text-align: center;
  }

  /* Search Again */
  .p_search-again__form {
    flex-direction: column;
  }
}

/* ============================================
   Small Mobile (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
  /* Works Grid */
  .p_works__grid {
    column-count: 2;
    column-gap: 8px;
  }

  .p_works__card {
    margin-bottom: 8px;
  }

  /* Hero */
  .p_hero__title {
    font-size: 20px;
  }

  /* Category */
  .p_category__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Work Detail */
  .p_work-detail__gallery--thumbs {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .p_work-detail__spec--label {
    width: 90px;
    padding: 10px 12px;
    font-size: 12px;
  }
  
  .p_work-detail__spec--value {
    padding: 10px 12px;
    font-size: 13px;
  }

  /* Company Detail */
  .p_company-detail__works-grid {
    grid-template-columns: 1fr;
  }
  
  .p_company-detail__tabs--btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
  }
}