/* ==========================================================================
   KEYWORK v4 - Layout (Header, Navigation, Footer, Container)
   ========================================================================== */

/* ========== Container ========== */

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

/* 홈페이지 전용 - PC에서 1445px 완전 고정 */
body.page-home {
    min-width: 1445px;
    overflow-x: auto;
}

.container--home {
    width: 1445px !important;
    max-width: 1445px !important;
    min-width: 1445px !important;
    padding: 0 24px !important;
}

/* 모바일에서만 반응형 전환 (768px 이하) */
@media (max-width: 768px) {
    body.page-home {
        min-width: 0 !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }
    .container--home {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        padding: 0 16px !important;
    }
}

/* ========== Header ========== */

.header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
    gap: var(--spacing-8);
}

/* Logo */
.header__logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.header__logo img {
    height: 40px;
    width: auto;
}

/* Header Navigation */
.header__nav {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.header__nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    height: 64px;
    padding: 0 var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    white-space: nowrap;
    position: relative;
}

.header__nav-link:hover {
    color: var(--color-primary-500);
}

.header__nav-link.active {
    color: var(--color-primary-500);
    font-weight: var(--font-weight-semibold);
}

.header__nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--spacing-4);
    right: var(--spacing-4);
    height: 3px;
    background-color: var(--color-primary-500);
}

/* Header Actions */
.header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    flex-shrink: 0;
}

.header__icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header__icon-btn:hover {
    background-color: var(--color-primary-50);
    color: var(--color-primary-500);
}

.header__menu-btn {
    display: none;
}

/* ========== Search Modal ========== */

.search-modal {
    display: none;
    position: fixed;
    top: 64px;
    right: 0;
    z-index: var(--z-fixed);
    pointer-events: none;
    visibility: hidden;
}

.search-modal.active {
    display: block;
    pointer-events: auto;
    visibility: visible;
}

.search-modal__inner {
    width: 400px;
    margin-top: var(--spacing-4);
    margin-right: var(--spacing-6);
    padding: var(--spacing-3);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.search-modal__input {
    flex: 1;
    height: 38px;
    padding: 0 var(--spacing-3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-modal__input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px var(--color-primary-100);
}

.search-modal__input::placeholder {
    color: var(--text-muted);
}

.search-modal__btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background-color: var(--color-primary-500);
    color: white;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-fast);
}

.search-modal__btn:hover {
    background-color: var(--color-primary-600);
}

.search-modal__filter {
    flex-shrink: 0;
    height: 38px;
    padding: 0 var(--spacing-3);
    padding-right: var(--spacing-6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
}

.search-modal__filter:focus {
    outline: none;
    border-color: var(--color-primary-500);
}

/* ========== Login Modal ========== */

.login-modal {
    display: none;
    position: fixed;
    top: 64px;
    right: 0;
    z-index: var(--z-fixed);
    pointer-events: none;
    visibility: hidden;
}

.login-modal.active {
    display: block;
    pointer-events: auto;
    visibility: visible;
}

.login-modal__inner {
    width: 320px;
    margin-top: var(--spacing-2);
    margin-right: var(--spacing-6);
    padding: var(--spacing-6);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.login-modal__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    text-align: center;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.login-form__input {
    width: 100%;
    height: 44px;
    padding: 0 var(--spacing-4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.login-form__input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px var(--color-primary-100);
}

.login-form__input::placeholder {
    color: var(--text-muted);
}

.login-form__actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    margin-top: var(--spacing-2);
}

.login-form__actions .btn {
    width: 100%;
    height: 44px;
    font-size: var(--font-size-base);
}

/* ========== Main Content ========== */

.main,
main {
    flex: 1; /* 메인 콘텐츠가 남은 공간을 채우도록 */
    padding: var(--spacing-2) 0 var(--spacing-6) 0;
}

/* header-placeholder와 footer-placeholder도 flex 아이템으로 동작 */
#header-placeholder {
    flex-shrink: 0;
}

#footer-placeholder {
    flex-shrink: 0;
}

/* ========== Footer ========== */

.footer {
    background-color: var(--color-gray-900);
    color: var(--text-muted);
    padding: var(--spacing-6) 0 var(--spacing-4);
    margin-top: var(--spacing-4); /* 메인 콘텐츠와 푸터 사이 여백 */
}

.footer__inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

.footer__top {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--color-gray-800);
    margin-bottom: var(--spacing-4);
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.footer__logo {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-inverse);
}

.footer__tagline {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-4);
}

.footer__link-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.footer__link-title {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--text-inverse);
    margin-bottom: var(--spacing-1);
}

.footer__link {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
    line-height: 1.5;
}

.footer__link:hover {
    color: var(--color-primary-500);
}

.footer__bottom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.footer__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.footer__info p {
    font-size: 11px;
    color: var(--color-gray-500);
    line-height: 1.4;
}

.footer__copyright {
    font-size: 11px;
    color: var(--color-gray-600);
    text-align: center;
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--color-gray-800);
}

/* ========== Toast Notifications ========== */

.toast-container {
    position: fixed;
    top: var(--spacing-6);
    right: var(--spacing-6);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    pointer-events: none; /* 빈 컨테이너가 클릭 차단하지 않도록 */
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-5);
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    transition: opacity var(--transition-base), transform var(--transition-base);
    pointer-events: auto; /* toast 자체는 클릭 가능하도록 */
}

.toast--success {
    border-left: 4px solid var(--color-success-500);
}

.toast--error {
    border-left: 4px solid var(--color-error-500);
}

.toast--warning {
    border-left: 4px solid var(--color-warning-500);
}

.toast--info {
    border-left: 4px solid var(--color-primary-500);
}

.toast i {
    font-size: var(--font-size-lg);
}

.toast--success i {
    color: var(--color-success-500);
}

.toast--error i {
    color: var(--color-error-500);
}

.toast--warning i {
    color: var(--color-warning-500);
}

.toast--info i {
    color: var(--color-primary-500);
}

/* ========== Mobile Menu ========== */

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-modal);
    background-color: var(--bg-primary);
    padding: var(--spacing-6);
    overflow-y: auto;
    pointer-events: none;
    visibility: hidden;
}

.mobile-menu.active {
    display: block;
    pointer-events: auto;
    visibility: visible;
}

.mobile-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-6);
}

.mobile-menu__close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.mobile-menu__link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.mobile-menu__link:hover,
.mobile-menu__link.active {
    background-color: var(--color-primary-50);
    color: var(--color-primary-500);
}

.mobile-menu__footer {
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.mobile-menu__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    transition: background-color var(--transition-fast);
}

.mobile-menu__btn--primary {
    background-color: var(--color-primary-500);
    color: white;
}

.mobile-menu__btn--primary:hover {
    background-color: var(--color-primary-600);
}

/* ========== Tablet & Mobile Styles ========== */

/* 모바일 터치 최적화 */
@media (hover: none) and (pointer: coarse) {
    /* 모든 클릭 가능한 요소에 터치 액션 최적화 */
    a, button, .header__icon-btn, .header__menu-btn, .mobile-menu__link, .mobile-menu__btn,
    .footer__link, .card__more, .section-card__more, .post-item, .job-item, .youtube-item {
        touch-action: manipulation;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
    }

    /* 버튼과 링크의 최소 터치 영역 확보 (44px x 44px) */
    .header__icon-btn,
    .header__menu-btn {
        min-width: 44px;
        min-height: 44px;
    }

    /* 푸터 링크 터치 영역 확대 */
    .footer__link {
        padding: var(--spacing-2) 0;
        display: block;
    }
}

@media (max-width: 1024px) {
    .header__nav-link {
        padding: 0 var(--spacing-3);
        font-size: var(--font-size-xs);
    }

    .header__inner {
        padding: 0 var(--spacing-4);
        gap: var(--spacing-4);
    }

    .footer__top {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

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

@media (max-width: 768px) {
    .header__inner {
        height: 56px;
        padding: 0 var(--spacing-4);
        gap: var(--spacing-3);
    }

    .header__logo img {
        height: 32px;
    }

    .header__nav {
        display: none;
    }

    .header__menu-btn {
        display: flex;
    }

    .search-modal,
    .login-modal {
        top: 56px;
    }

    .search-modal__inner {
        width: calc(100% - var(--spacing-8));
        margin-right: var(--spacing-4);
        padding: var(--spacing-3);
    }

    .search-modal__input {
        height: 40px;
        font-size: var(--font-size-sm);
    }

    .search-modal__btn {
        width: 40px;
        height: 40px;
    }

    .search-modal__filter {
        height: 40px;
        font-size: var(--font-size-sm);
        padding: 0 var(--spacing-2);
        padding-right: var(--spacing-5);
    }

    .login-modal__inner {
        width: calc(100% - var(--spacing-8));
        margin-right: var(--spacing-4);
        padding: var(--spacing-5);
    }

    .main {
        padding: var(--spacing-4) 0;
    }

    .footer {
        padding: var(--spacing-4) 0 var(--spacing-3);
    }

    .footer__inner {
        padding: 0 var(--spacing-4);
    }

    .footer__top {
        grid-template-columns: 1fr;
        gap: var(--spacing-3);
        padding-bottom: var(--spacing-3);
        margin-bottom: var(--spacing-3);
    }

    .footer__brand {
        gap: var(--spacing-1);
    }

    .footer__logo {
        font-size: var(--font-size-lg);
    }

    .footer__tagline {
        font-size: var(--font-size-xs);
    }

    .footer__links {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-2);
    }

    .footer__link-group {
        gap: var(--spacing-1);
    }

    .footer__link-title {
        font-size: var(--font-size-xs);
        margin-bottom: var(--spacing-1);
    }

    .footer__link {
        font-size: 11px;
        padding: 2px 0;
        min-height: auto;
        line-height: 1.3;
    }

    .footer__bottom {
        gap: var(--spacing-2);
    }

    .footer__info {
        gap: var(--spacing-1);
    }

    .footer__info p {
        font-size: 10px;
        line-height: 1.4;
    }

    .footer__copyright {
        font-size: 10px;
        padding-top: var(--spacing-2);
    }

    .toast-container {
        left: var(--spacing-4);
        right: var(--spacing-4);
        top: var(--spacing-4);
    }

    .toast {
        min-width: unset;
    }
}

/* ========== 모바일 클릭 문제 해결 (Critical Fix) ========== */

/* 비활성 모달/오버레이가 클릭을 절대 차단하지 않도록 강제 */
.mobile-menu:not(.active),
.search-modal:not(.active),
.login-modal:not(.active) {
    display: none !important;
    pointer-events: none !important;
    visibility: hidden !important;
    z-index: -1 !important;
}

/* 모바일에서 모든 주요 interactive 요소들의 클릭 보장 */
@media (max-width: 768px) {
    /* 헤더 영역 클릭 보장 */
    .header,
    .header__inner,
    .header__logo,
    .header__actions,
    .header__icon-btn,
    .header__menu-btn {
        pointer-events: auto !important;
        position: relative;
        z-index: var(--z-sticky);
    }

    /* 푸터 영역 클릭 보장 */
    .footer,
    .footer__inner,
    .footer__links,
    .footer__link-group,
    .footer__link {
        pointer-events: auto !important;
        position: relative;
    }

    /* 푸터 링크 터치 영역 (컴팩트하게) */
    .footer__link {
        display: block;
        padding: 3px 0;
        min-height: 24px;
        line-height: 1.3;
    }

    /* 메인 콘텐츠 영역 클릭 보장 */
    .main,
    .container,
    main {
        pointer-events: auto !important;
    }

    /* 버튼 및 링크 클릭 보장 */
    a,
    button,
    [role="button"],
    .btn,
    .card__more,
    .section-card__more {
        pointer-events: auto !important;
        cursor: pointer;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
        touch-action: manipulation;
    }

    /* 헤더 버튼 최소 터치 영역 */
    .header__icon-btn,
    .header__menu-btn {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ========== 초소형 모바일 (400px 이하) ========== */
@media (max-width: 400px) {
    .search-modal__inner {
        width: calc(100% - 16px);
        margin-right: 8px;
        padding: 8px;
        gap: 4px;
    }

    .search-modal__filter {
        height: 36px;
        padding: 0 6px;
        padding-right: 20px;
        font-size: 11px;
        min-width: 50px;
    }

    .search-modal__input {
        height: 36px;
        padding: 0 8px;
        font-size: 13px;
    }

    .search-modal__btn {
        width: 36px;
        height: 36px;
        font-size: 12px;
    }
}