/*  Google Font  */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@100;300;400&display=swap');

/*  Variables  */
:root {
  --overlay-opacity: 0.65;  /* bg image */
  --overlay-opacity-nav: 0.02;  /* bg image */
  --about-image-overlay-opacity: 0.12;
  --about-image-shape-radius: 0;
}

/*  Core  */
html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  background: #111;
  color: #fff;
}

/*  Navbar  */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 0;
  background: transparent !important;
  z-index: 100;
}

.navbar-brand {
  font-weight: 300;
  font-size: 0.9rem;
  letter-spacing: 0.35em;
  color: #fff !important;
  text-transform: uppercase;
}

.navbar-brand img {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.navbar-brand__logo {
  display: block;
}

.navbar.is-scrolled .navbar-brand img {
  opacity: 0.70;
}

.navbar-nav .nav-link {
  --nav-link-padding-x: 1rem;
  position: relative;
  font-weight: 300;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.70) !important;
  text-transform: uppercase;
  padding: 0.3rem var(--nav-link-padding-x) !important;
  transition: color 0.2s ease;
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  right: var(--nav-link-padding-x);
  bottom: 0.05rem;
  left: var(--nav-link-padding-x);
  height: 1px;
  background: rgba(255, 255, 255, 0.65);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.navbar-nav .nav-link::before {
  content: '';
  position: absolute;
  top: 0.05rem;
  right: var(--nav-link-padding-x);
  left: var(--nav-link-padding-x);
  height: 1px;
  background: rgba(255, 255, 255, 0.65);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus-visible,
.navbar-nav .nav-link.active {
  color: #fff !important;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link:focus-visible::after,
.navbar-nav .nav-link.active::after {
  transform: scaleX(1);
}

.navbar-nav .nav-link.active.is-clicked::before {
  transform: scaleX(1);
}

/*  Collapsed menu  */
@media (max-width: 991.98px) {
  .navbar-collapse {
    position: absolute;
    top: 100%;
    right: 1.5rem;
    min-width: 180px;
  }

/*  Box menu  */
  .nav-panel {
	position:relative;
    background: rgba(0, 0, 0, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 0.75rem 0.5rem;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
	z-index: 1080;
  }

  .navbar-nav {
	  	position:relative;
    align-items: flex-end;
	z-index: 1081;
  }
}

/* White hamburger icon */
.navbar-toggler {
  border: none;
  padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus{
  box-shadow: none;
}

.navbar-toggler-icon{
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/*  Home  */
.home{
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/*  Background image  */
.background{
  position: absolute;
  inset: 0;
  background-image: url("../img/room_2k.jpg");
  background-size: cover;
  background-position: center;
  z-index: 0;
  will-change: transform;
}

/* Overlay — only covers the hero image, not the navbar */
.bg-shade{
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, var(--overlay-opacity));
  z-index: 1;
}

.nav-shade{
  background: rgba(0, 0, 0, var(--overlay-opacity-nav));
  z-index: 1080;
  transition: background-color 0.4s ease;
}

.navbar.is-scrolled .nav-shade{
  background: rgba(0, 0, 0, 0.70);
}

/* Main text sits above background and overlay */
.home-content{
  position: relative;
  z-index: 2;
  text-align: center;
}

.home-content__logo {
  width: 426px;
  max-width: 100%;
  display: inline-block;
}

.home-content__logo img {
  display: block;
  width: 100%;
  height: auto;
}

.home-heading{
  font-weight: 300;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: 0.3em;
  color: #fff;
  text-transform: uppercase;
  margin: 0;
}
.home-subheading{
  font-weight: 100;
  font-size: clamp(1rem, 5vw, 2rem);
  letter-spacing: 0.3em;
  color: #f7f7f7;
  text-transform: uppercase;
  margin: 0;
}

/* Scroll mouse indicator */
.home__scroll-indicator {
  margin-top: 2.5rem;
  display: flex;
  justify-content: center;
}

.scroll-mouse {
  width: 26px;
  height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 13px;
  position: relative;
}

.scroll-mouse::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 2px;
  animation: scrollDot 1.6s ease-in-out infinite;
}

@keyframes scrollDot {
  0%   { opacity: 1; transform: translateX(-50%) translateY(0); }
  80%  { opacity: 0; transform: translateX(-50%) translateY(12px); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

/* Parallax image divider */
.parallax-divider {
  position: relative;
  height: 45vh;
  overflow: hidden;
}

.parallax-divider__background {
  position: absolute;
  inset: -32% 0;
  background-image: url("../img/down-bnw.jpg");
  background-size: cover;
  background-position: center;
  z-index: 0;
  will-change: transform;
}

.parallax-divider__shade {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, var(--overlay-opacity));
  z-index: 1;
}

.parallax-divider__content {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.book-cut-button {
  position: relative;
  width: calc(
    clamp(420px, 54vmin, 600px) +
    clamp(2.8rem, 7vmin, 4.4rem) +
    clamp(2.8rem, 7vmin, 4.4rem)
  );
  max-width: calc(100% - 2rem);
  box-sizing: border-box;
  padding: clamp(1.9rem, 4.8vmin, 2.5rem) clamp(2.5rem, 14vmin, 8.8rem);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.48);
  background: rgba(0, 0, 0, 0.68);
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.68rem, calc(0.9rem + 2.6vmin), 2.2rem);
  font-weight: 300;
  letter-spacing: 0.18em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  backdrop-filter: blur(0.75px);
  -webkit-backdrop-filter: blur(0.75px);
  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.15s ease;
}

.book-cut-button:hover,
.book-cut-button:focus-visible {
  color: #fff;
  background: rgba(0, 0, 0, 0.8);
}

.book-cut-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.16);
}

.book-cut-button:active {
  color: #fff;
  background: rgba(0, 0, 0, 0.9);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.3),
    0 0 20px rgba(255, 255, 255, 0.26);
  transform: translateY(1px) scale(0.99);
}

.book-cut-button__label {
  position: relative;
  z-index: 1;
}

.book-cut-button__line {
  position: absolute;
  display: block;
  background: #fff;
  pointer-events: none;
  transition: transform 0.13s linear;
}

.book-cut-button__line--top,
.book-cut-button__line--bottom {
  right: -1px;
  left: -1px;
  height: 1px;
  transform: scaleX(0);
}

.book-cut-button__line--top {
  top: -1px;
  transform-origin: right;
  transition-delay: 0.39s;
}

.book-cut-button__line--left,
.book-cut-button__line--right {
  top: -1px;
  bottom: -1px;
  width: 1px;
  transform: scaleY(0);
}

.book-cut-button__line--left {
  left: -1px;
  transform-origin: top;
  transition-delay: 0.26s;
}

.book-cut-button__line--bottom {
  bottom: -1px;
  transform-origin: left;
  transition-delay: 0.13s;
}

.book-cut-button__line--right {
  right: -1px;
  transform-origin: bottom;
  transition-delay: 0s;
}

.book-cut-button:hover .book-cut-button__line,
.book-cut-button:focus-visible .book-cut-button__line,
.book-cut-button:active .book-cut-button__line {
  transform: scale(1);
}

.book-cut-button:hover .book-cut-button__line--top,
.book-cut-button:focus-visible .book-cut-button__line--top {
  transition-delay: 0s;
}

.book-cut-button:hover .book-cut-button__line--left,
.book-cut-button:focus-visible .book-cut-button__line--left {
  transition-delay: 0.13s;
}

.book-cut-button:hover .book-cut-button__line--bottom,
.book-cut-button:focus-visible .book-cut-button__line--bottom {
  transition-delay: 0.26s;
}

.book-cut-button:hover .book-cut-button__line--right,
.book-cut-button:focus-visible .book-cut-button__line--right {
  transition-delay: 0.39s;
}

.book-cut-button:active .book-cut-button__line {
  transition-delay: 0s;
}

/*  About section  */
.about-section {
  width: 100%;
  height: 100vh;
  height: 100svh;
  box-sizing: border-box;
  padding: 27vh clamp(2rem, 6vw, 7rem) clamp(1.25rem, 4vh, 2.5rem);
  background: #111;
  overflow: hidden;
}

.about-section__inner {
  width: min(100%, 1280px);
  height: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.about-section__heading {
  flex: 0 0 auto;
  margin: 0 0 clamp(1.25rem, 3.5vh, 2.5rem);
  font-weight: 100;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  letter-spacing: 0.3em;
  text-align: center;
  text-transform: uppercase;
}

.about-section__content {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 1px minmax(0, 2fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
}

.about-section__portrait {
  position: relative;
  width: min(34vw, 48vh, 430px);
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--about-image-shape-radius);
}

.about-section__portrait::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, var(--about-image-overlay-opacity));
  pointer-events: none;
}

.about-section__portrait picture,
.about-section__portrait img {
  display: block;
}

.about-section__portrait img {
  width: 100%;
  height: auto;
}

.about-section__divider {
  width: 1px;
  height: min(48vh, 430px);
  background: rgba(255, 255, 255, 0.62);
}

.about-section__copy {
  width: 100%;
  font-size: clamp(0.84rem, 1.85vh, 1.1rem);
  font-weight: 300;
  line-height: 1.55;
  letter-spacing: 0.015em;
  text-align: left;
  color: rgba(255, 255, 255, 0.78);
}

.about-section__copy p {
  margin: 0 0 clamp(0.45rem, 1.35vh, 0.85rem);
}

.about-section__copy p:last-child {
  margin-bottom: 0;
}

.about-section__signature {
  color: rgba(255, 255, 255, 0.95);
}

/* ============================================================
   PLACEHOLDER SECTIONS (Portfolio, Contact)
   ============================================================ */
.section-placeholder {
  height: 100vh;
  min-height: 500px;
  box-sizing: border-box;
  padding-top: 27vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
}

.section-placeholder h2 {
  font-weight: 100;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.section-placeholder p {
  font-weight: 300;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin: 0;
}

/* Alternating section backgrounds */
#portfolio { background: #161616; }
#contact   { background: #111; }

/* Allow the About section to grow when the collapsed navigation is active */
@media (max-width: 991.98px) {
  .background {
    background-image: url("../img/room_2k-tablet.jpg");
  }

  .parallax-divider__background {
    background-image: url("../img/down-bnw-tablet.jpg");
  }

  .about-section {
    height: auto;
    min-height: 100vh;
    min-height: 100svh;
    padding-bottom: clamp(2.5rem, 7vh, 4.5rem);
    overflow: visible;
  }

  .about-section__inner {
    height: auto;
  }

  .about-section__content {
    flex: 0 0 auto;
  }

  .about-section__divider {
    height: auto;
    align-self: stretch;
  }
}

/* Stack the About content at Bootstrap's medium breakpoint */
@media (max-width: 767.98px) {
  .about-section {
    padding-right: clamp(1.25rem, 5vw, 2.5rem);
    padding-left: clamp(1.25rem, 5vw, 2.5rem);
  }

  .about-section__content {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto 1px auto;
    gap: clamp(0.8rem, 2.5vh, 1.25rem);
    justify-items: center;
    align-items: start;
  }

  .about-section__portrait {
    width: min(48vw, 240px);
  }

  .about-section__divider {
    width: min(70%, 320px);
    height: 1px;
    align-self: auto;
  }

  .about-section__copy {
    width: min(100%, 620px);
  }
}

/* Small-screen adjustments */
@media (max-width: 575.98px) {
  .background {
    background-image: url("../img/room_2k-mobile.jpg");
  }

  .parallax-divider__background {
    background-image: url("../img/down-bnw-mobile.jpg");
  }

  .nav-shade {
    padding-right: 0.875rem !important;
    padding-left: 0.875rem !important;
  }

  .navbar-brand {
    margin-right: 0.5rem;
  }

  .navbar-brand img {
    width: auto;
    height: 72px;
  }

  .navbar-toggler {
    padding: 0.2rem;
  }

  .navbar-toggler-icon {
    width: 1.25em;
    height: 1.25em;
  }

  .navbar-collapse {
    right: 0.875rem;
    min-width: 150px;
  }

  .nav-panel {
    padding: 0.55rem 0.35rem;
  }

  .navbar-nav .nav-link {
    --nav-link-padding-x: 0.7rem;
    padding: 0.35rem var(--nav-link-padding-x) !important;
    font-size: 0.76rem;
    letter-spacing: 0.14em;
  }

  .home-content {
    box-sizing: border-box;
    width: 100%;
    padding: 0 1.25rem;
  }

  .home-content__logo {
    width: min(62vw, 220px);
  }

  .home-heading {
    font-size: 1.65rem;
    letter-spacing: 0.2em;
  }

  .home-subheading {
    max-width: 340px;
    margin: 0.35rem auto 0;
    font-size: 0.8rem;
    line-height: 1.7;
    letter-spacing: 0.14em;
  }

  .about-section {
    padding: clamp(5.25rem, 12vh, 6.5rem) 1.25rem clamp(2rem, 6vh, 3rem);
  }

  .about-section__heading {
    margin-bottom: clamp(0.6rem, 1.6vh, 1rem);
    font-size: 1.35rem;
    letter-spacing: 0.2em;
  }

  .about-section__content {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto 1px auto;
    gap: clamp(0.45rem, 1.4vh, 0.75rem);
    justify-items: center;
    align-content: start;
  }

  .about-section__portrait {
    width: min(38vw, 150px);
  }

  .about-section__divider {
    width: min(58%, 240px);
    height: 1px;
  }

  .about-section__copy {
    width: min(100%, 520px);
    font-size: clamp(0.68rem, 1.85vh, 0.85rem);
    line-height: 1.38;
  }

  .about-section__copy p {
    margin-bottom: clamp(0.3rem, 0.85vh, 0.5rem);
  }

  .section-placeholder {
    padding: max(7rem, 22vh) 1.25rem 0;
  }

  .section-placeholder h2 {
    font-size: 1.35rem;
    letter-spacing: 0.2em;
  }

  .section-placeholder p {
    max-width: 320px;
    font-size: 0.68rem;
    line-height: 1.7;
    letter-spacing: 0.1em;
  }
}

/* Compact navbar for short landscape viewports */
@media (max-height: 400px) {
  .nav-shade {
    padding-right: 1rem !important;
    padding-left: 1rem !important;
  }

  .navbar-brand {
    margin-right: 0.5rem;
    line-height: 1;
  }

  .navbar-brand img {
    width: auto;
    height: clamp(44px, 14vh, 56px);
  }

  .navbar-toggler {
    padding: 0.15rem 0.3rem;
  }

  .navbar-toggler-icon {
    width: 1.15em;
    height: 1.15em;
  }

  .navbar-collapse {
    right: 1rem;
    min-width: 140px;
  }

  .nav-panel {
    padding: 0.4rem 0.3rem;
  }

  .navbar-nav .nav-link {
    --nav-link-padding-x: 0.65rem;
    padding: 0.25rem var(--nav-link-padding-x) !important;
    font-size: 0.7rem;
    letter-spacing: 0.13em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .book-cut-button,
  .book-cut-button__line {
    transition: none;
  }

  .book-cut-button:active {
    transform: none;
  }
}