/* ==========================
   Component: Navigation
========================== */

nav {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 4000;
}

.hamburger {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 35px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 5000;
}

.hamburger span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-surface);
  border-radius: 2px;
  box-shadow: var(--shadow-soft);

  transition:
    background-color var(--transition-base),
    transform var(--transition-base),
    opacity var(--transition-base);
}

.hamburger.scrolled span {
  background-color: var(--color-accent);
}

.hamburger span:nth-child(1) {
  top: 0;
}

.hamburger span:nth-child(2) {
  top: 12px;
}

.hamburger span:nth-child(3) {
  bottom: 0;
}

.hamburger.active span:nth-child(1) {
  top: 12px;
  transform: rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
  top: 12px;
  transform: rotate(-45deg);
}

.hamburger:hover span {
  background-color: var(--color-accent);
}

.nav-panel {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100vh;

  background-color: var(--color-surface);

  display: flex;
  flex-direction: column;

  padding-top: 120px;

  list-style: none;
  margin: 0;

  transition: right 0.35s ease;

  z-index: 4000;

  border-left: 1px solid var(--color-border);

  box-shadow: var(--shadow-hover);
}

.nav-panel.active {
  right: 0;
}

.nav-panel a {
  display: block;
  padding: 20px 40px;

  color: var(--color-text);

  text-decoration: none;
  font-size: 1.1rem;

  transition: color var(--transition-base);
}

.nav-panel a:hover {
  color: var(--color-accent);
}

.nav-overlay {
  position: fixed;
  inset: 0;

  background: var(--color-overlay);

  opacity: 0;
  pointer-events: none;

  transition: opacity var(--transition-base);

  z-index: 3000;
}

.nav-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.nav-group {
  display: flex;
  flex-direction: column;
}

.nav-submenu {
  list-style: none;
  margin: var(--space-xs) 0 0;
  padding-left: 0;
}

.nav-submenu a {
  display: grid;
  grid-template-columns: 16px auto;
  align-items: center;
  column-gap: 8px;

  padding: 10px 40px;
  font-size: 1.05rem;

  color: var(--color-text-muted);
}

.submenu-arrow {
  justify-self: start;
  font-size: 1.1rem;
  color: var(--color-accent);
}

.nav-submenu a:hover {
  color: var(--color-accent);
}

.nav-submenu a:hover .submenu-arrow {
  transform: translateX(4px);
  transition: transform 0.2s ease;
}

/* ==========================
   Theme Toggle
========================== */

.theme-toggle {
  position: fixed;
  top: 20px;
  right: 75px;
  z-index: 5000;

  padding: 0;

  background: none;
  border: none;

  cursor: pointer;
}

.theme-toggle-track {
  position: relative;

  width: 64px;
  height: 34px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  padding: 0 9px;

  border-radius: 999px;

  background-color: rgba(255, 255, 255, 0.82);

  border: 1px solid rgba(255, 255, 255, 0.55);

  box-shadow: var(--shadow-soft);

  backdrop-filter: blur(10px);

  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.theme-toggle-thumb {
  position: absolute;

  top: 50%;
  left: 4px;

  width: 26px;
  height: 26px;

  transform: translateY(-50%);

  border-radius: 50%;

  background-color: var(--color-surface);

  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.22);

  transition:
    transform var(--transition-base),
    background-color var(--transition-base);
}

.theme-toggle-icon {
  position: relative;
  z-index: 2;

  font-size: 0.9rem;
  line-height: 1;

  color: var(--color-text-muted);

  transition:
    color var(--transition-base),
    opacity var(--transition-base);
}

[data-theme="dark"] .theme-toggle-track {
  background-color: rgba(21, 28, 48, 0.84);
  border-color: rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] .theme-toggle-thumb {
  transform: translate(30px, -50%);
}

[data-theme="dark"] .theme-toggle-track {
  background-color: rgba(245, 247, 255, 0.14);
  border-color: rgba(245, 247, 255, 0.28);
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(139, 168, 255, 0.16);
}

[data-theme="dark"] .theme-toggle-thumb {
  background-color: var(--color-accent);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.35),
    0 0 14px rgba(139, 168, 255, 0.45);
}

[data-theme="dark"] .theme-toggle-icon {
  color: var(--color-hero-text);
}

.theme-toggle:hover .theme-toggle-track {
  box-shadow: var(--shadow-hover);
}

.theme-toggle:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 999px;
}

/* ==========================
   Component: Accent Heading
========================== */

.accent-heading {
  position: relative;
  display: inline-block;
}

.accent-heading::after {
  content: "";
  position: absolute;

  left: 50%;
  bottom: calc(-1 * var(--space-xs));

  transform: translateX(-50%) scaleX(0);
  transform-origin: right;

  width: 50%;
  height: 3px;

  background: linear-gradient(to right, var(--color-accent), var(--color-accent-dark));

  border-radius: 2px;

  transition: transform 0.8s ease 0.15s;
}

.accent-heading.animate::after {
  transform: translateX(-50%) scaleX(1);
}

/* ==========================
   Component: Section Cards
========================== */

.about-card,
.contact-card,
.testimonials-card {
  background: var(--color-surface);

  border-radius: 24px;
  padding: var(--space-lg);

  border: 1px solid var(--color-border);

  box-shadow: var(--shadow-soft);

  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

/* ==========================
   Component: Slideshow
========================== */

.slideshow-shell {
  width: 100%;

  display: grid;
  grid-template-columns: 44px 1fr 44px;

  align-items: center;

  gap: var(--space-sm);
}

.slideshow-container {
  width: 100%;
  margin: 0 auto;

  position: relative;
  text-align: center;

  min-height: 360px;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 14px;
  overflow: hidden;

  background-color: var(--color-surface-alt);

  border: 1px solid var(--color-border);

  box-shadow: var(--shadow-soft);

  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.slide {
  display: none;
  width: 100%;
  position: relative;
}

.slide img {
  max-width: 100%;
  max-height: 420px;

  width: auto;
  height: auto;

  display: block;
  margin: 0 auto;

  object-fit: contain;
}

.slideshow-container .slide img {
  cursor: zoom-in;

  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.slideshow-container .slide img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

.slide::after {
  content: "⤢";

  position: absolute;
  top: 10px;
  right: 10px;

  font-size: 1.2rem;

  color: var(--color-text);

  background: var(--color-overlay);

  padding: 6px 8px;

  border-radius: 6px;

  opacity: 0;
  pointer-events: none;

  transition: opacity 0.3s ease;

  z-index: 3;
}

.slide:hover::after {
  opacity: 1;
}

.graphics-slideshow {
  min-height: 380px;
  padding: var(--space-md);
}

.graphics-slideshow .slide {
  align-items: center;
  justify-content: center;
}

.graphics-slideshow .slide img {
  max-height: 340px;
  object-fit: contain;
}

.web-slideshow img {
  max-height: 520px;
  border-radius: 4px;
}

.prev,
.next {
  cursor: pointer;

  width: 44px;
  height: 44px;
  padding: 0;

  display: grid;
  place-items: center;

  color: var(--color-text);

  background-color: var(--color-surface);

  border: 1px solid var(--color-border);

  border-radius: 50%;

  backdrop-filter: blur(6px);

  box-shadow: var(--shadow-soft);

  font-weight: bold;
  font-size: 1.25rem;
  line-height: 1;

  text-decoration: none;
  user-select: none;

  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    background-color 0.25s ease,
    color 0.25s ease;
}

.prev:hover,
.next:hover {
  background-color: var(--color-surface-alt);

  color: var(--color-accent);

  transform: translateY(-2px);

  box-shadow: var(--shadow-hover);
}

/* ==========================
   Component: Slideshow Text + Indicators
========================== */

.text {
  color: var(--color-text);

  font-size: 0.95rem;

  padding: 8px 12px;

  position: absolute;
  bottom: 8px;

  width: 100%;

  text-align: center;
}

.numbertext {
  color: var(--color-text);

  background-color: var(--color-overlay);

  font-size: 0.8rem;

  padding: 8px 12px;

  position: absolute;
  top: 0;
  left: 0;

  z-index: 2;
}

.dots-container {
  text-align: center;
}

.dot {
  cursor: pointer;

  height: 12px;
  width: 12px;

  margin: 0 4px;

  background-color: var(--color-text-muted);

  border-radius: 50%;

  display: inline-block;

  transition: background-color 0.3s ease;
}

.dot.active,
.dot:hover {
  background-color: var(--color-accent);
}

/* ==========================
   Component: Lightbox
========================== */

body.lightbox-open {
  overflow: hidden;
}

.lightbox {
  position: fixed;
  inset: 0;

  background: rgba(0, 0, 0, 0.9);

  display: flex;
  align-items: center;
  justify-content: center;

  z-index: 9999;

  padding: 60px 16px 80px;

  opacity: 0;
  visibility: hidden;

  transition: opacity 0.3s ease;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-image {
  max-width: 90%;
  max-height: calc(100vh - 140px);

  object-fit: contain;

  border-radius: 12px;

  transition: none;

  transform-origin: center center;

  cursor: zoom-in;
  user-select: none;

  will-change: transform;

  touch-action: none;
  -webkit-user-drag: none;
}

.lightbox-image.is-zoomed {
  cursor: grab;
  box-shadow: var(--shadow-hover);
}

.lightbox-image.is-dragging {
  cursor: grabbing;
  transition: none;
}

.lightbox-close {
  position: absolute;

  z-index: 10000;

  top: 24px;
  right: 20px;

  font-size: 2.5rem;

  color: white;

  cursor: pointer;
}

.lightbox-prev,
.lightbox-next {
  z-index: 100000;

  position: absolute;

  backdrop-filter: blur(6px);

  top: 50%;
  transform: translateY(-50%);

  background: rgba(255, 255, 255, 0.1);

  border: none;

  font-size: 2rem;

  color: white;

  padding: 12px 16px;

  cursor: pointer;

  border-radius: 8px;

  transition: background 0.2s ease;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.25);
}

.lightbox-prev {
  left: 30px;
}

.lightbox-next {
  right: 30px;
}

/* ==========================
   Component: Animations
========================== */

.fade {
  animation: fade 0.8s ease;
}

@keyframes fade {
  from {
    opacity: 0.4;
  }

  to {
    opacity: 1;
  }
}

/* ==========================
   Component: Card
========================== */

.card {
  background-color: var(--color-surface);

  border-radius: 16px;

  border: 1px solid var(--color-border);

  box-shadow: var(--shadow-soft);

  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease,
    background-color var(--transition-base),
    border-color var(--transition-base);
}

.audio-card {
  transform: none;
}

@media (hover: hover) {
  .card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
  }

  .audio-card:hover {
    transform: translateY(-4px);
  }
}

/* ==========================
   Mobile Slideshow Controls
========================== */

@media (max-width: 767px) {
  .slideshow-shell {
    grid-template-columns: 1fr 1fr;

    grid-template-areas:
      "slideshow slideshow"
      "prev next";

    gap: var(--space-sm);
  }

  .slideshow-container {
    grid-area: slideshow;
  }

  .prev {
    grid-area: prev;
    justify-self: end;
  }

  .next {
    grid-area: next;
    justify-self: start;
  }

  .prev,
  .next {
    margin-top: var(--space-sm);
  }

  .lightbox-prev,
  .lightbox-next {
    top: auto;
    bottom: 24px;
    transform: none;
  }

  .lightbox-prev {
    left: 24px;
  }

  .lightbox-next {
    right: 24px;
  }

  .lightbox-close {
    top: 18px;
    right: 22px;
  }
}

/* ==========================
   Media Query: Tablet
========================== */

@media (min-width: 768px) {
  .slideshow-shell {
    grid-template-columns: 46px 1fr 46px;
    gap: var(--space-md);
  }

  .slideshow-container {
    min-height: 450px;
  }

  .slide img {
    max-height: 500px;
  }

  .graphics-slideshow {
    min-height: 500px;
  }

  .graphics-slideshow .slide img {
    max-height: 460px;
  }

  .web-slideshow img {
    max-height: 600px;
  }

  .prev,
  .next {
    width: 46px;
    height: 46px;
    font-size: 1.4rem;
  }
}

/* ==========================
   Tablet Lightbox Controls
========================== */

@media (min-width: 768px) and (max-width: 1023px) {
  .lightbox {
    padding-left: 72px;
    padding-right: 72px;
  }

  .lightbox-image {
    max-width: calc(100vw - 180px);
  }

  .lightbox-prev {
    left: 24px;
  }

  .lightbox-next {
    right: 24px;
  }
}

/* ==========================
   Media Query: Desktop
========================== */

@media (min-width: 1024px) {
  .lightbox {
    padding-left: 80px;
    padding-right: 80px;
  }

  .lightbox-image {
    max-width: calc(100% - 120px);
  }

  .slideshow-container {
    min-height: 500px;
    background-color: transparent;
  }

  .graphics-slideshow {
    min-height: 540px;
  }

  .graphics-slideshow .slide img {
    max-height: 500px;
  }

  .web-slideshow {
    min-height: 600px;
  }
}