/* ==========================================================================
   Brand wordmark (navbar + footer logo)
   ========================================================================== */

.brand {
  display: inline-flex;
  flex-direction: column;
  line-height: 1;
  user-select: none;
}

.brand__name {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
  color: var(--color-black);
}

.brand__role {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: var(--fw-regular);
  letter-spacing: 0.02em;
  color: var(--color-gray-400);
  margin-top: 4px;
}

/* Larger variant for footer */
.brand--lg .brand__name { font-size: 1.625rem; }
.brand--lg .brand__role { font-size: 0.9375rem; margin-top: 6px; }

/* ==========================================================================
   Buttons
   ========================================================================== */

.button,
.button--secondary,
.button--ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--color-black);
  border-radius: var(--radius-pill);
  background-color: var(--color-black);
  color: var(--color-white);
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--duration-base) var(--ease),
              background-color var(--duration-base) var(--ease),
              border-color var(--duration-base) var(--ease);
}

.button:hover {
  background-color: var(--color-white);
  color: var(--color-black);
}

.button--secondary {
  background-color: var(--color-white);
  color: var(--color-black);
}

.button--secondary:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

.button--ghost {
  background-color: transparent;
  border-color: var(--color-gray-300);
  color: var(--color-black);
}

.button--ghost:hover {
  background-color: var(--color-gray-softer);
}

.button--navbar {
  padding: 14px 20px;
  font-size: var(--fs-medium);
  box-shadow: none;
  transition: box-shadow var(--duration-base) var(--ease),
              color var(--duration-base) var(--ease);
}

.button--navbar:hover {
  color: var(--color-black);
  box-shadow: var(--shadow-button);
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
}

.button-group--center {
  justify-content: center;
  align-items: center;
}

/* Inline text-link button (used inside cards) */
.button-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-medium);
  color: var(--color-black);
  transition: color var(--duration-base) var(--ease);
}

.button-link__arrow {
  display: inline-flex;
  width: 18px;
  height: 18px;
}

.button-link__arrow svg {
  width: 100%;
  height: 100%;
}


/* ==========================================================================
   Navbar
   ========================================================================== */

.navbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  display: flex;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.navbar__inner {
  display: flex;
  align-items: center;
  position: relative; /* anchor for absolute-centered menu */
  width: 100%;
  max-width: var(--max-width-page);
  height: var(--navbar-height);
  margin-inline: auto;
  padding-inline: var(--container-padding-x);
  gap: 1rem;
}

.navbar__logo-link {
  display: inline-flex;
  align-items: center;
}

.navbar__logo {
  width: 132px;
  height: auto;
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto; /* push the whole group (menu + cta) to the right */
}

.navbar__link {
  display: inline-flex;
  align-items: center;
  height: 46px;
  padding: 0 1rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-regular);
  color: var(--color-black);
  transition: background-color var(--duration-base) var(--ease);
}

.navbar__link:hover {
  background-color: var(--color-gray-softer);
}

.navbar__link.is-current {
  background-color: var(--color-gray-softer);
}

.navbar__cta {
  /* sits naturally to the right of .navbar__menu via parent gap */
}

/* Mobile hamburger toggle */
.navbar__toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
}

.navbar__toggle:hover { background-color: var(--color-gray-softer); }

.navbar__toggle-icon {
  position: relative;
  width: 22px;
  height: 14px;
}

.navbar__toggle-icon::before,
.navbar__toggle-icon::after,
.navbar__toggle-icon span {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-black);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease),
              opacity var(--duration-base) var(--ease),
              top var(--duration-base) var(--ease);
}

.navbar__toggle-icon::before { top: 0; }
.navbar__toggle-icon span    { top: 50%; transform: translateY(-50%); }
.navbar__toggle-icon::after  { bottom: 0; }

.navbar.is-open .navbar__toggle-icon::before {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}
.navbar.is-open .navbar__toggle-icon span    { opacity: 0; }
.navbar.is-open .navbar__toggle-icon::after  {
  bottom: auto;
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

@media (max-width: 991px) {
  .navbar__toggle { display: inline-flex; }

  .navbar__menu {
    /* full-width dropdown panel below the navbar */
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-left: 0;
    padding-inline: var(--container-padding-x);
    padding-top: 0;
    padding-bottom: 0;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 0 solid rgba(0, 0, 0, 0.06);

    min-height: 0;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    pointer-events: none;
    transition: max-height var(--duration-slow) var(--ease),
                padding-top var(--duration-slow) var(--ease),
                padding-bottom var(--duration-slow) var(--ease),
                border-bottom-width var(--duration-slow) var(--ease),
                visibility 0s var(--duration-slow);
  }

  .navbar.is-open .navbar__menu {
    max-height: 80vh;
    padding-top: 1rem;
    padding-bottom: 1.5rem;
    border-bottom-width: 1px;
    visibility: visible;
    pointer-events: auto;
    transition: max-height var(--duration-slow) var(--ease),
                padding-top var(--duration-slow) var(--ease),
                padding-bottom var(--duration-slow) var(--ease),
                border-bottom-width var(--duration-slow) var(--ease),
                visibility 0s 0s;
  }

  .navbar__link {
    height: auto;
    padding-block: 0.75rem;
    border-radius: 0;
  }

  /* Menu becomes position:absolute on mobile and leaves the flex flow,
     so the CTA button needs its own auto margin to stay pinned right. */
  .navbar__cta {
    margin-left: auto;
  }
}

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

.footer {
  margin-top: auto;
  padding-block: 5rem 2.5rem;
}

.footer__inner {
  width: 100%;
  max-width: var(--max-width-page);
  margin-inline: auto;
  padding-inline: var(--container-padding-x);
}

.footer__top {
  display: grid;
  grid-template-columns: 0.75fr 1fr;
  align-items: start;
  gap: 8vw;
  padding-bottom: 3rem;
}

.footer__brand {
  display: flex;
  flex-direction: column;
}

.footer__logo {
  width: 180px;
  height: auto;
}

.footer__columns {
  display: grid;
  grid-template-columns: max-content max-content;
  gap: 1rem 6rem;
  align-items: start;
}

.footer__column {
  display: flex;
  flex-direction: column;
}

.footer__column-title {
  margin-bottom: 0.5rem;
  padding-left: 0.75rem;
  font-size: 12px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray-400);
}

.footer__link {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-small);
  color: var(--color-black);
  transition: background-color var(--duration-base) var(--ease),
              color var(--duration-base) var(--ease);
}

.footer__link:hover {
  background-color: var(--color-gray-softer);
}

.footer__link--copy {
  text-align: left;
  cursor: pointer;
}

.footer__link--copy.is-copied {
  background-color: var(--color-black);
  color: var(--color-white);
}

.footer__divider {
  height: 1px;
  background-color: var(--color-black);
  width: 100%;
}

@media (max-width: 991px) {
  .footer__top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer__columns {
    gap: 1rem 3rem;
  }
}

@media (max-width: 479px) {
  .footer__columns {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Project tag (used on home cards & detail header)
   ========================================================================== */

.project-tag {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-black);
  color: var(--color-white);
  font-size: var(--fs-small);
  line-height: 1.3;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Filter chips above project grid */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.project-filter {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-gray-200, #e6e6ea);
  background-color: var(--color-white);
  color: var(--color-black);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  line-height: 1.3;
  white-space: nowrap;
  transition: background-color var(--duration-base) var(--ease),
              border-color var(--duration-base) var(--ease),
              color var(--duration-base) var(--ease);
}

.project-filter:hover {
  border-color: var(--color-black);
}

.project-filter.is-active {
  background-color: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

.project-filter__count {
  margin-left: 6px;
  font-size: 11px;
  opacity: 0.6;
}

.project-card.is-hidden {
  display: none;
}

/* ==========================================================================
   Project card (home + "Other Projects" section)
   ========================================================================== */

.project-card {
  display: block;
  height: 100%;
  padding: 16px 16px 28px;
  border: 1px solid var(--color-gray-softer);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  color: inherit;
  transition: transform var(--duration-fast) var(--ease),
              box-shadow var(--duration-base) var(--ease),
              background-color var(--duration-base) var(--ease);
}

.project-card:hover {
  transform: scale(1.015);
  box-shadow: var(--shadow-card);
}

.project-card:active {
  background-color: var(--color-gray-softer);
}

.project-card__media {
  width: 100%;
  border-radius: var(--radius-xs);
  overflow: hidden;
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.project-card__body {
  padding: 20px 4px 4px;
}

.project-card__title {
  margin-bottom: 0.5rem;
}

.project-card__description {
  margin-bottom: 1.25rem;
  font-size: var(--fs-regular);
  color: var(--color-text-muted);
  font-family: var(--font-kr);
}

.project-card__tags {
  margin: 0;
}

.project-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.project-card__cta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-medium);
}

/* ==========================================================================
   Contact modal
   ========================================================================== */

.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease);
}

.contact-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.contact-modal__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(15, 15, 20, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.contact-modal__panel {
  position: relative;
  width: min(440px, 100%);
  background-color: var(--color-white);
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 24px 60px rgba(15, 15, 20, 0.18);
  transform: translateY(8px) scale(0.98);
  transition: transform var(--duration-base) var(--ease);
}

.contact-modal.is-open .contact-modal__panel {
  transform: translateY(0) scale(1);
}

.contact-modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-gray-400);
  transition: background-color var(--duration-base) var(--ease),
              color var(--duration-base) var(--ease);
}

.contact-modal__close:hover {
  background-color: var(--color-gray-softer);
  color: var(--color-black);
}

.contact-modal__close svg {
  width: 18px;
  height: 18px;
}

.contact-modal__title {
  font-family: var(--font-sans);
  font-size: 1.375rem;
  font-weight: var(--fw-semibold);
  color: var(--color-black);
  margin-bottom: 6px;
}

.contact-modal__lede {
  font-size: var(--fs-small);
  color: var(--color-gray-400);
  margin-bottom: 20px;
}

.contact-modal__email {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 10px 10px 16px;
  border: 1px solid var(--color-gray-200, #e6e6ea);
  border-radius: 12px;
  margin-bottom: 16px;
}

.contact-modal__email-text {
  flex: 1;
  font-family: var(--font-sans);
  font-size: var(--fs-medium);
  color: var(--color-black);
  word-break: break-all;
  user-select: all;
}

.contact-modal__copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: 8px;
  background-color: var(--color-black);
  color: var(--color-white);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  white-space: nowrap;
  transition: background-color var(--duration-base) var(--ease);
}

.contact-modal__copy:hover {
  background-color: var(--color-gray-700, #2a2a30);
}

.contact-modal__copy.is-copied {
  background-color: var(--color-success, #1a8f5a);
}

.contact-modal__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.contact-modal__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: var(--fs-medium);
  font-weight: var(--fw-medium);
  text-align: center;
  transition: background-color var(--duration-base) var(--ease),
              color var(--duration-base) var(--ease),
              border-color var(--duration-base) var(--ease);
}

.contact-modal__btn--ghost {
  border: 1px solid var(--color-gray-200, #e6e6ea);
  color: var(--color-black);
}

.contact-modal__btn--ghost:hover {
  background-color: var(--color-gray-softer);
}

.contact-modal__btn--primary {
  background-color: var(--color-black);
  color: var(--color-white);
}

.contact-modal__btn--primary:hover {
  background-color: var(--color-gray-700, #2a2a30);
}

.contact-modal__btn svg {
  width: 16px;
  height: 16px;
}

@media (max-width: 480px) {
  .contact-modal__panel { padding: 24px; }
  .contact-modal__actions { grid-template-columns: 1fr; }
}