/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */

@property --angle-1 {
  syntax: "<angle>";
  inherits: false;
  initial-value: -75deg;
}

@property --angle-2 {
  syntax: "<angle>";
  inherits: false;
  initial-value: -45deg;
}

:root {
  --color-bg: #000000;
  --color-silver: #c0c0c0;
  --color-silver-light: #e8e8e8;
  --color-keyword: #333333;
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --anim-hover-time: 400ms;
  --anim-hover-ease: cubic-bezier(0.25, 1, 0.5, 1);
  --button-size: clamp(1rem, 2.5vw, 1.5rem);
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  scrollbar-width: none; /* Firefox */
}

html::-webkit-scrollbar {
  display: none; /* Chrome, Safari */
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg);
  color: var(--color-silver);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ==========================================================================
   Page Layout
   ========================================================================== */

.page {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Keywords - Floating background text
   ========================================================================== */

.keywords {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}

.keywords__word {
  position: absolute;
  font-size: clamp(0.75rem, 1.5vw, 1rem);
  font-weight: 300;
  color: var(--color-keyword);
  opacity: 0;
  text-transform: lowercase;
  letter-spacing: 0.05em;
  animation: keyword-fade-in 1.5s ease-out forwards;
}

.keywords__word--dissolving {
  animation: keyword-dissolve 0.3s ease-out forwards;
}

@keyframes keyword-fade-in {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes keyword-dissolve {
  0% {
    opacity: 1;
    filter: blur(0);
  }
  100% {
    opacity: 0;
    filter: blur(4px);
  }
}

/* Dust particles */
.keywords__particle {
  position: absolute;
  width: var(--size, 2px);
  height: var(--size, 2px);
  background-color: var(--color-keyword);
  border-radius: 50%;
  left: var(--start-x);
  top: var(--start-y);
  opacity: 0;
  animation: particle-blow var(--duration, 2s) var(--delay, 0s) cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes particle-blow {
  0% {
    transform: translate(0, 0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  50% {
    opacity: 0.4;
  }
  100% {
    transform: translate(var(--end-x), var(--end-y)) rotate(var(--rotation));
    opacity: 0;
  }
}

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

.content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
  padding: 6rem 2rem 2rem;
  gap: 5rem;
}

.content__header {
  flex-shrink: 0;
}

/* Title - Shiny Silver Effect */
.content__title {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: clamp(3rem, 10vw, 8rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  text-transform: lowercase;
  text-align: center;
  background: linear-gradient(
    135deg,
    #666666 0%,
    #a0a0a0 25%,
    #ffffff 50%,
    #a0a0a0 75%,
    #666666 100%
  );
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 8s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Easter egg - clickable dot on "i" */
.title__i {
  position: relative;
  cursor: default;
  background: inherit;
  background-size: inherit;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.title__i::before {
  content: "";
  position: absolute;
  top: 0.08em;
  left: 50%;
  transform: translateX(-50%);
  width: 0.22em;
  height: 0.22em;
  border-radius: 50%;
  cursor: pointer;
  z-index: 100;
}

/* Golf Animation */
.circuit {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  width: 100%;
  max-width: 800px;
  height: 120px;
}

.circuit canvas {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 300px;
  pointer-events: none;
}

/* Navigation */
.content__nav {
  flex-shrink: 0;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 1.35rem;
}

/* ==========================================================================
   Glass Button Component (adapted from examples)
   ========================================================================== */

.button-wrap {
  position: relative;
  z-index: 2;
  border-radius: 999vw;
  background: transparent;
  pointer-events: none;
  transition: all var(--anim-hover-time) var(--anim-hover-ease);
  font-size: var(--button-size);
}

.button-shadow {
  --shadow-cutoff-fix: 2em;
  position: absolute;
  width: calc(100% + var(--shadow-cutoff-fix));
  height: calc(100% + var(--shadow-cutoff-fix));
  top: calc(0% - var(--shadow-cutoff-fix) / 2);
  left: calc(0% - var(--shadow-cutoff-fix) / 2);
  filter: blur(clamp(2px, 0.125em, 12px));
  overflow: visible;
  pointer-events: none;
}

.button-shadow::after {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  border-radius: 999vw;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
  width: calc(100% - var(--shadow-cutoff-fix) - 0.25em);
  height: calc(100% - var(--shadow-cutoff-fix) - 0.25em);
  top: calc(var(--shadow-cutoff-fix) - 0.5em);
  left: calc(var(--shadow-cutoff-fix) - 0.875em);
  padding: 0.125em;
  box-sizing: border-box;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  transition: all var(--anim-hover-time) var(--anim-hover-ease);
  overflow: visible;
  opacity: 1;
}

.button {
  --border-width: clamp(1px, 0.0625em, 4px);
  all: unset;
  cursor: pointer;
  position: relative;
  display: inline-block;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  pointer-events: auto;
  z-index: 3;
  background: linear-gradient(
    -75deg,
    rgba(255, 255, 255, 0.03),
    rgba(255, 255, 255, 0.12),
    rgba(255, 255, 255, 0.03)
  );
  border-radius: 999vw;
  box-shadow:
    inset 0 0.125em 0.125em rgba(255, 255, 255, 0.05),
    inset 0 -0.125em 0.125em rgba(255, 255, 255, 0.1),
    0 0.25em 0.125em -0.125em rgba(0, 0, 0, 0.5),
    0 0 0.1em 0.25em inset rgba(255, 255, 255, 0.05),
    0 0 0 0 rgba(255, 255, 255, 1);
  backdrop-filter: blur(clamp(1px, 0.125em, 4px));
  transition: all var(--anim-hover-time) var(--anim-hover-ease);
  text-decoration: none;
}

.button:hover {
  transform: scale(0.975);
  backdrop-filter: blur(0.01em);
  box-shadow:
    inset 0 0.125em 0.125em rgba(255, 255, 255, 0.05),
    inset 0 -0.125em 0.125em rgba(255, 255, 255, 0.15),
    0 0.15em 0.05em -0.1em rgba(0, 0, 0, 0.5),
    0 0 0.05em 0.1em inset rgba(255, 255, 255, 0.1),
    0 0 0 0 rgba(255, 255, 255, 1);
}

.button span {
  position: relative;
  display: block;
  user-select: none;
  font-family: var(--font-primary);
  letter-spacing: 0.05em;
  font-weight: 400;
  font-size: 1em;
  color: var(--color-silver-light);
  text-shadow: 0 0.05em 0.1em rgba(0, 0, 0, 0.5);
  transition: all var(--anim-hover-time) var(--anim-hover-ease);
  padding-inline: 2em;
  padding-block: 1em;
}

.button:hover span {
  text-shadow: 0.025em 0.025em 0.05em rgba(0, 0, 0, 0.6);
  color: #ffffff;
}

/* Button shine effect */
.button span::after {
  content: "";
  display: block;
  position: absolute;
  z-index: 1;
  width: calc(100% - var(--border-width));
  height: calc(100% - var(--border-width));
  top: calc(0% + var(--border-width) / 2);
  left: calc(0% + var(--border-width) / 2);
  box-sizing: border-box;
  border-radius: 999vw;
  overflow: clip;
  background: linear-gradient(
    var(--angle-2),
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 40% 50%,
    rgba(255, 255, 255, 0) 55%
  );
  z-index: 3;
  mix-blend-mode: screen;
  pointer-events: none;
  background-size: 200% 200%;
  background-position: 0% 50%;
  background-repeat: no-repeat;
  transition:
    background-position calc(var(--anim-hover-time) * 1.25) var(--anim-hover-ease),
    --angle-2 calc(var(--anim-hover-time) * 1.25) var(--anim-hover-ease);
}

.button:hover span::after {
  background-position: 25% 50%;
}

.button:active span::after {
  background-position: 50% 15%;
  --angle-2: -15deg;
}

/* Button border/outline */
.button::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  border-radius: 999vw;
  width: calc(100% + var(--border-width));
  height: calc(100% + var(--border-width));
  top: calc(0% - var(--border-width) / 2);
  left: calc(0% - var(--border-width) / 2);
  padding: var(--border-width);
  box-sizing: border-box;
  background:
    conic-gradient(
      from var(--angle-1) at 50% 50%,
      rgba(255, 255, 255, 0.3),
      rgba(255, 255, 255, 0) 5% 40%,
      rgba(255, 255, 255, 0.3) 50%,
      rgba(255, 255, 255, 0) 60% 95%,
      rgba(255, 255, 255, 0.3)
    ),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  transition:
    all var(--anim-hover-time) var(--anim-hover-ease),
    --angle-1 500ms ease;
  box-shadow: inset 0 0 0 calc(var(--border-width) / 2) rgba(255, 255, 255, 0.2);
}

.button:hover::after {
  --angle-1: -125deg;
}

.button:active::after {
  --angle-1: -75deg;
}

/* Button wrap hover effects */
.button-wrap:has(.button:hover) .button-shadow {
  filter: blur(clamp(2px, 0.0625em, 6px));
}

.button-wrap:has(.button:hover) .button-shadow::after {
  top: calc(var(--shadow-cutoff-fix) - 0.875em);
  opacity: 1;
}

.button-wrap:has(.button:active) {
  transform: rotate3d(1, 0, 0, 25deg);
}

.button-wrap:has(.button:active) .button {
  box-shadow:
    inset 0 0.125em 0.125em rgba(255, 255, 255, 0.05),
    inset 0 -0.125em 0.125em rgba(255, 255, 255, 0.1),
    0 0.125em 0.125em -0.125em rgba(0, 0, 0, 0.5),
    0 0 0.1em 0.25em inset rgba(255, 255, 255, 0.05),
    0 0.225em 0.05em 0 rgba(0, 0, 0, 0.2),
    0 0.25em 0 0 rgba(255, 255, 255, 0.3),
    inset 0 0.25em 0.05em 0 rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   Subpage Layout
   ========================================================================== */

.content--subpage {
  padding-top: 4rem;
  gap: 3rem;
  padding-bottom: 4rem;
}

/* Allow scrolling on subpages */
html:has(.content--subpage) {
  overflow: auto;
}

html:has(.content--subpage)::-webkit-scrollbar {
  display: none;
}

/* ==========================================================================
   Project List (File Explorer Style)
   ========================================================================== */

.project-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
  width: 100%;
  max-width: 500px;
}

.project {
  width: 100%;
}

/* Main project link (GitHub repo) */
.project__main {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-primary);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--color-silver);
  text-decoration: none;
  padding: 0.5rem 0;
  transition: all var(--anim-hover-time) var(--anim-hover-ease);
}

.project__main:hover {
  color: var(--color-silver-light);
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

/* Folder icon */
.project__icon {
  width: 1.25em;
  height: 1.25em;
  min-width: 1.25em;
  opacity: 0.7;
  stroke: currentColor;
  transition: opacity var(--anim-hover-time) var(--anim-hover-ease);
}

.project__main:hover .project__icon {
  opacity: 1;
}

/* Project description */
.project__desc {
  font-size: 0.8em;
  font-weight: 300;
  opacity: 0.7;
}

/* Sub-links container */
.project__sub {
  display: flex;
  flex-direction: column;
  margin-left: 0.5rem;
  padding-left: 1rem;
  border-left: 1px solid rgba(192, 192, 192, 0.2);
}

/* Live demo link */
.project__live {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-primary);
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  font-weight: 300;
  letter-spacing: 0.03em;
  color: rgba(192, 192, 192, 0.7);
  text-decoration: none;
  padding: 0.4rem 0;
  transition: all var(--anim-hover-time) var(--anim-hover-ease);
}

.project__live:hover {
  color: var(--color-silver-light);
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.25);
}

.project__live-icon {
  width: 1em;
  height: 1em;
  min-width: 1em;
  opacity: 0.6;
  stroke: currentColor;
  transition: opacity var(--anim-hover-time) var(--anim-hover-ease);
}

.project__live:hover .project__live-icon {
  opacity: 1;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
  .content {
    gap: 3rem;
  }

  .content__nav {
    flex-direction: column;
    gap: 1.5rem;
  }

  .content--subpage {
    padding-top: 3rem;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  .content {
    gap: 2.5rem;
    padding: 1.5rem;
  }

  .content--subpage {
    padding-top: 2rem;
  }

  .game-list {
    gap: 0.75rem;
  }
}

/* ==========================================================================
   Loading Screen
   ========================================================================== */

.loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease-out, visibility 0.4s ease-out;
}

.loader--hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__text {
  font-family: var(--font-primary);
  font-size: clamp(3rem, 12vw, 6rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  text-transform: lowercase;
  background: linear-gradient(
    135deg,
    #666666 0%,
    #a0a0a0 25%,
    #ffffff 50%,
    #a0a0a0 75%,
    #666666 100%
  );
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: loader-shimmer 2s ease-in-out infinite, loader-pulse 1.5s ease-in-out infinite;
}

@keyframes loader-shimmer {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes loader-pulse {
  0%, 100% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.02);
  }
}

/* Loader dissolving into dust */
.loader--dissolving .loader__text {
  animation: loader-dissolve 0.6s ease-out forwards;
}

@keyframes loader-dissolve {
  0% {
    opacity: 1;
    filter: blur(0);
    transform: scale(1);
  }
  100% {
    opacity: 0;
    filter: blur(12px);
    transform: scale(0.95);
  }
}

/* Hide content while loading */
.page--loading .content {
  opacity: 0;
}

.page--loading .keywords {
  opacity: 0;
}

/* ==========================================================================
   Page Transitions
   ========================================================================== */

/* Initial page fade-in */
.page-entering .content {
  animation: content-fade-in 0.6s ease-out forwards;
}

@keyframes content-fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Content dissolving effect */
.content--dissolving {
  animation: content-dissolve 0.8s ease-out forwards;
}

@keyframes content-dissolve {
  0% {
    opacity: 1;
    filter: blur(0);
    transform: scale(1);
  }
  100% {
    opacity: 0;
    filter: blur(8px);
    transform: scale(0.98);
  }
}

/* Transition overlay */
.transition-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background: transparent;
}

/* Particle container */
.transition-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* Individual dust particles */
.transition-particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
  animation: particle-fly var(--duration, 1s) var(--delay, 0s) cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes particle-fly {
  0% {
    opacity: 0;
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  15% {
    opacity: 0.9;
  }
  50% {
    opacity: 0.6;
  }
  100% {
    opacity: 0;
    transform: translate(var(--end-x), var(--end-y)) rotate(var(--rotation)) scale(0.3);
  }
}

/* ==========================================================================
   Responsive Design - Transitions
   ========================================================================== */

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .content__title {
    animation: none;
  }

  .keywords__word {
    animation-duration: 0.01ms;
  }

  .button,
  .button span,
  .button::after,
  .button span::after,
  .button-wrap,
  .button-shadow,
  .button-shadow::after {
    transition: none;
  }

  .page-entering,
  .content--dissolving,
  .transition-particle {
    animation: none;
  }

  .page-entering .content {
    opacity: 1;
  }

  .loader__text {
    animation: none;
    opacity: 1;
  }

  .loader--dissolving .loader__text {
    animation: none;
  }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  /* Reset background and colors for printing */
  body {
    background: #ffffff;
    color: #000000;
  }

  .page {
    min-height: auto;
  }

  /* Hide non-essential elements */
  .keywords,
  .circuit,
  .button-shadow,
  .transition-overlay,
  .transition-particles {
    display: none !important;
  }

  /* Style title for print */
  .content__title {
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
    -webkit-text-fill-color: #000000;
    color: #000000;
    animation: none;
    font-size: 2.5rem;
  }

  /* Style content for print */
  .content {
    padding: 1rem;
    gap: 1.5rem;
  }

  /* Style buttons as simple links for print */
  .button-wrap {
    display: inline-block;
  }

  .button {
    background: none;
    box-shadow: none;
    backdrop-filter: none;
    border: 1px solid #000000;
    border-radius: 4px;
  }

  .button span {
    color: #000000;
    text-shadow: none;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }

  .button::after,
  .button span::after {
    display: none;
  }

  /* Style project list for print */
  .project-list {
    align-items: flex-start;
  }

  .project__main,
  .project__live {
    color: #000000;
  }

  .project__icon,
  .project__live-icon {
    display: none;
  }

  .project__sub {
    border-left-color: #cccccc;
  }

  /* Avoid page breaks inside content */
  .content {
    page-break-inside: avoid;
  }
}