/*
 * SIMMONS PORTFOLIO — LAYOUT (layout.css)
 * Site header · mobile menu · quick menu (Kakao / chatbot / top) · footer
 */

/* Header ------------------------------------------------------------------ */
.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  width: 100%;
  color: #fff;
  transition:
    background 0.35s,
    border-color 0.35s;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(0, 0, 0, 0.94);
  border-bottom: 1px solid var(--line);
}

/* Utility links above the main nav */
.utility-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  height: 40px;
  padding-right: var(--pad);
  padding-left: var(--pad);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.utility-bar nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.utility-bar a {
  color: #fff;
  opacity: 0.9;
  transition: opacity 0.2s;
}

/* Logo · main nav · actions */
.nav-bar {
  display: grid;
  grid-template-columns: 155px minmax(0, 1fr) 90px;
  align-items: center;
  height: 72px;
  padding-right: var(--pad);
  padding-left: var(--pad);
}

.brand {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.15em;
}

.brand img {
  width: 128px;
  height: auto;
  /* Shows any logo file in white. */
  filter: brightness(0) invert(1);
}

.primary-nav {
  display: flex;
  justify-content: flex-start;
  gap: clamp(10px, 1.25vw, 22px);
  font-size: clamp(10px, 0.84vw, 13px);
  white-space: nowrap;
}

.primary-nav a {
  transition: opacity 0.2s;
}

.primary-nav a:hover,
.utility-bar a:hover {
  opacity: 0.55;
}

.nav-actions {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
}

.nav-actions svg {
  width: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

/* Hamburger + full-screen menu (shown at 1200px and below) */
.menu-button {
  display: none;
  width: 28px;
  padding: 5px 0;
  border: 0;
  background: none;
}

.menu-button span {
  display: block;
  height: 1px;
  margin: 6px 0;
  background: #fff;
  transition: 0.3s;
}

.mobile-menu {
  position: fixed;
  inset: 111px 0 0;
  display: none;
  flex-direction: column;
  padding: 40px var(--pad);
  background: #000;
}

.mobile-menu p {
  margin: 22px 0 4px;
  color: #777;
  font-size: 10px;
  letter-spacing: 0.18em;
}

.mobile-menu a {
  display: flex;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-size: clamp(24px, 6vw, 42px);
}

@media (max-width: 1200px) {
  .utility-bar,
  .primary-nav,
  .nav-actions a:first-child {
    display: none;
  }

  .nav-bar {
    grid-template-columns: 1fr auto 1fr;
    height: 70px;
  }

  .brand {
    justify-self: center;
  }

  .menu-button {
    display: block;
  }

  .mobile-menu {
    inset: 70px 0 0;
  }

  .site-header.is-open {
    height: 100%;
  }

  .site-header.is-open .mobile-menu {
    display: flex;
  }

  .site-header.is-open .menu-button span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .site-header.is-open .menu-button span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }
}

@media (max-width: 900px) {
  .brand img {
    width: 118px;
  }

  .mobile-menu {
    overflow-y: auto;
  }

  .mobile-menu a {
    padding: 11px 0;
    font-size: 20px;
  }
}

/* Quick menu (Kakao · chatbot · back to top) ------------------------------ */
.quick-menu {
  position: fixed;
  z-index: 60;
  right: 28px;
  bottom: 88px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  transition: transform 0.45s var(--ease);
  /* The box is as wide as the greeting tooltip; only the buttons take clicks
     so its transparent area never blocks the event popup beside it. */
  pointer-events: none;
}

.quick-menu .quick-button {
  pointer-events: auto;
}

.quick-button {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
}

.quick-button img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: contain;
}

.quick-button.kakao {
  background: #fee500;
}

.quick-button.chatbot {
  background: #35b968;
}

.quick-button.top {
  position: fixed;
  z-index: 61;
  right: 28px;
  bottom: 24px;
  background: #fff;
  color: #111;
  font-size: 21px;
}

/* KakaoTalk mark drawn in SVG (index.html) instead of an image */
.kakao-mark {
  width: 34px;
  fill: #000;
}

.kakao-mark text {
  fill: #fee500;
  stroke: #fee500;
  stroke-width: 1.6px;
  stroke-linejoin: round;
  font-size: 31px;
  font-weight: 700;
}

.quick-tooltip {
  max-width: 230px;
  padding: 12px 14px;
  border-radius: 9px;
  background: #fff;
  color: #222;
  font-size: 11px;
  line-height: 1.5;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateX(12px);
  transition: 0.3s var(--ease);
  pointer-events: none;
}

.quick-tooltip.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .quick-menu {
    right: 16px;
    bottom: 80px;
  }

  .quick-button.top {
    right: 16px;
    bottom: 16px;
  }
}

/* Mobile: no back-to-top button, so Kakao/chatbot drop into its place. */
@media (max-width: 600px) {
  .quick-menu {
    bottom: 16px;
  }

  .quick-button.top,
  .quick-tooltip {
    display: none;
  }
}

/* Footer ------------------------------------------------------------------ */
.site-footer {
  padding: 64px var(--pad) 28px;
  background: #000;
  border-top: 1px solid var(--line);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: start;
  padding-bottom: 48px;
}

.footer-top .brand {
  font-size: clamp(30px, 4vw, 62px);
}

.footer-top p {
  color: #888;
  font-size: 13px;
  line-height: 1.7;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) 1.6fr;
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.footer-grid > div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.footer-grid strong {
  margin-bottom: 12px;
  font-size: 13px;
  letter-spacing: 0.15em;
}

.footer-grid a,
.footer-grid p {
  color: #888;
  font-size: 14px;
}

.newsletter form {
  display: flex;
  width: 100%;
  margin-top: 12px;
  border-bottom: 1px solid #555;
}

.newsletter input {
  width: 100%;
  padding: 13px 0;
  border: 0;
  background: none;
  color: #fff;
  outline: none;
}

.newsletter button {
  border: 0;
  background: none;
  color: #fff;
  font-size: 20px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 28px;
  color: #aaa;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.footer-bottom div {
  display: flex;
  gap: 24px;
}

.footer-bottom a {
  color: #ccc;
  font-size: 13px;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 42px 28px;
  }

  .newsletter {
    grid-column: 1 / -1;
    margin-top: 0;
  }
}

@media (max-width: 600px) {
  .site-footer {
    padding-top: 40px;
  }

  .footer-top {
    display: block;
    padding-bottom: 28px;
  }

  .footer-top p {
    margin-top: 25px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 28px 0;
  }

  .footer-bottom {
    display: block;
    line-height: 1.8;
  }

  .footer-bottom div {
    flex-wrap: wrap;
    margin-top: 14px;
  }
}