/* Fonts */

@font-face {
  font-family: "Establo";
  src:
    url(/fonts/Establo.ttf) format("embedded-opentype"),
    url(/fonts/Establo.ttf) format("woff2"),
    url(/fonts/Establo.ttf) format("woff"),
    url(/fonts/Establo.ttf) format("truetype"),
    url(/fonts/Establo.ttf) format("svg");
}

/* Global */

:root {
  --font-sans: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --font-retro: "VT323", monospace;
  --font-logo: "Establo", monospace;
  font-family: var(--font-mono);

  /* TODO: #6 Confirm background, text and accent colors */

  --bg: #121211;

  --text: #fff;
  --text-dark: #000;
  --text-secondary: #a8a8a8;

  --accent: rgb(127, 197, 249);
  --accent-transparent: color-mix(in srgb, var(--accent) 30%, transparent);
  --window-bg: color-mix(in srgb, var(--accent) 10%, transparent);

  --border-retro: 1px solid var(--accent);
  --border-section: 2px solid rgb(255, 255, 255, 0.075);

  --box-shadow-retro: 4px 4px var(--accent-transparent);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 105px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

body {
  position: relative;
  background-color: var(--bg);
  color: var(--text);
  text-align: center;
  overflow-x: hidden;
}

/* TODO: #7 Tweak noise/grain effect */

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;

  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");

  opacity: 0.05;
}

body.no-scroll {
  overflow: hidden;
}

main:focus-visible {
  outline: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: inherit;
  font-family: inherit;
}

.retro-link {
  text-decoration: none;
  color: var(--accent);
  font-family: var(--font-retro);
  font-size: 1.4rem;
  text-transform: lowercase;
  padding: 5px 10px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border: var(--border-retro);
  box-shadow: var(--box-shadow-retro);
  transition: all 0.1s ease-in-out;
}

.retro-link:hover,
.retro-link:focus-visible {
  color: white;
  border: 1px solid white;
  text-shadow: 0 0 3px rgba(255, 255, 255, 0.6);
  box-shadow: 5px 5px rgba(255, 255, 255, 0.4);
  transform: translate(-1px, -1px);
  transition: all 0.1s ease-in-out;
  outline: none;
}

/* TODO: #29 Style or remove window/mini-window dots */

.window,
.mini-window {
  display: flex;
  flex-direction: column;
  width: 100%;

  .titlebar {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    gap: 10px;
    font-family: var(--font-retro);
  }

  .content {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 10px;
    padding: 10px;
    text-align: start;
    font-size: 0.875rem;
  }
}

.window {
  border: 1px solid var(--accent);
  box-shadow: 4px 4px var(--accent-transparent);
  max-width: 250px;
  background: var(--window-bg);

  .titlebar {
    color: var(--accent);
    border-bottom: 1px solid var(--accent);
    font-size: 1.2rem;
  }

  .content h3 {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-retro);
    text-transform: lowercase;
    font-size: 1.5rem;
  }
}

.mini-window {
  position: relative;
  max-width: 200px;
  background: var(--bg);
  border: 1px solid #4a4a48;
  box-shadow: 3px 3px rgba(0, 0, 0, 0.6);

  .titlebar {
    border-bottom: 1px solid #4a4a48;
    font-size: 1rem;
  }

  .dots {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 5px;

    span {
      width: 10px;
      height: 10px;
      border: 1px solid var(--accent);
      background-color: color-mix(in srgb, var(--accent) 50%, transparent);
    }
  }
}

.skip-link {
  background: var(--accent);
  color: var(--text-dark);
  left: 0;
  padding: 8px;
  position: absolute;
  transform: translateY(-100%);
  transition: transform 0.3s;
  z-index: 1001;
}

.skip-link:focus-visible {
  transform: translateY(0%);
}

.visually-hidden {
  border: 0;
  clip-path: inset(50%);
  height: 1px;
  margin: 0;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.logo-text {
  font-family: var(--font-logo);
  font-size: 3rem;
  font-weight: 100;
  text-transform: lowercase;
  color: var(--accent);
  text-shadow: 0 0 1px #48b2f6;
  letter-spacing: 0.02em;
}

/* Sections */

section {
  display: flex;
  flex-direction: column;
}

section:not(#hero) {
  align-items: center;
  padding: 50px 20px;
  gap: 50px;
  border-bottom: var(--border-section);
}

section:not(#hero) header {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 800px;
  margin: 0 auto;
  gap: 10px;
}

section:not(#hero) header h2 {
  font-family: var(--font-retro);
  font-size: 2.5rem;
  text-transform: lowercase;
}

/* Navbar */

nav {
  position: fixed;
  top: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  margin: 10px;
  z-index: 1000;
}

#nav-toggle-btn,
#nav-container {
  padding: 10px;
  background-color: var(--bg);
  color: var(--text);
  border: var(--border-retro);
  box-shadow: var(--box-shadow-retro);
}

#nav-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

#nav-container {
  display: flex;
  visibility: hidden;
  opacity: 0;
  transform: scale(0.5);
  transform-origin: top right;
  transition:
    transform 0.28s cubic-bezier(0.34, 1.4, 0.64, 1),
    opacity 0.1s ease-in-out;
}

#nav-container.show-links {
  visibility: visible;
  opacity: 1;
  transform: scale(1);
  transition:
    transform 0.28s cubic-bezier(0.34, 1.4, 0.64, 1),
    opacity 0.1s ease-in-out;
}

.nav-logo-text {
  display: none;
}

.nav-links {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;

  a {
    text-decoration: none;
    color: var(--text);
    font-family: var(--font-retro);
    font-size: 1.4rem;
    text-transform: lowercase;
  }
}

/* Hero Section */

#hero {
  width: 100vw;
  height: 100dvh;
  flex-direction: column-reverse;
  justify-content: flex-start;
  align-items: flex-start;
  text-align: left;
  border: 1px solid transparent;
  transition: border-color 0.1s ease-in-out;
}

#hero.after-scroll {
  border-bottom: var(--border-section);
  transition: border-color 0.1s ease-in-out;
}

#hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  padding: 20px;
  gap: 20px;
}

#hero-content h1 {
  color: var(--accent);
}

#hero-logo {
  width: 100%;
  max-width: 200px;
  margin: 0 auto;
  height: auto;
  object-fit: contain;
}

#hero-links {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

#hero-terminal {
  display: flex;
  flex-direction: column-reverse;
  justify-content: flex-start;
  align-items: flex-start;
  gap: 15px;
  width: 100%;
  height: 100%;
  background-color: black;
  padding: 0px 20px 20px 20px;
  text-align: left;
  font-size: clamp(0.75rem, 2.5vw, 1rem);
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

#hero-terminal-prompt {
  &::before {
    content: "> ";
    color: var(--accent);
  }

  &::after {
    content: "_";
    color: var(--accent);
    animation: blink 1s step-end infinite;
  }
}

#hero-terminal-output {
  display: flex;
  flex-direction: column-reverse;
  overflow: hidden;
  gap: 15px;

  .welcome-output {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .ascii-art {
    font-family: var(--font-mono);
    font-size: clamp(
      0.4rem,
      2vw,
      0.75rem
    );
    white-space: pre;
    line-height: 1.15;
  }

  .photos-output {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap-reverse;
    justify-content: flex-start;
    gap: 10px;
  }

  img {
    width: min(200px, 40vw);
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
  }

  img.placeholder {
    width: 100%;
    height: 200px;
    background-color: #333;
  }

  .committee-output {
    ul {
      list-style: none;
    }
  }
}

/* About Section */
/* TODO: #10 Refactor about section: remove unnecessary components, improve layout, add content */

#about-points {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 20px;
  /* max-width: 100px; */
  justify-content: center;
}

#about-points > .window {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--accent);
  box-shadow: 5px 5px var(--accent-transparent);
}

.about-point {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  max-width: 600px;
  padding: 10px;
  border: var(--border-retro);
  box-shadow: var(--box-shadow-retro);
  text-align: start;
}

#about-points > .window h3 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-retro);
  text-transform: lowercase;
  font-size: 1.5rem;
}

#about-points > .window > .content {
  flex: 1;
  justify-content: space-between;
  min-height: 250px;
}

.about-point i {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Events Section */

#events-grid {
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 35px;
}

.event {
  display: flex;
  flex-direction: column;
  gap: 25px;
  justify-content: flex-start;
  align-items: flex-start;
  flex-wrap: wrap;
}

.event .window {
  min-height: 180px;

  .content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 10px;
  }
}

.event .mini-window-stack {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 10px;
}

.event .mini-window {
  width: fit-content;
  margin-top: -5px;

  &:nth-child(odd) {
    align-self: flex-start;
  }

  &:nth-child(even) {
    align-self: flex-end;
  }

  .event-topic::before {
    content: "> ";
    color: var(--accent);
  }
}

/* Committee Section */

#committee-grid {
  /* TODO: #36 Potentially use grid instead of flexbox */
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 35px;
}

.member-window {
  max-width: min-content;
  align-self: stretch;
  --accent-transparent: color-mix(in srgb, var(--accent) 30%, transparent);
  --window-bg: color-mix(in srgb, var(--accent) 10%, transparent);

  .flags {
    display: flex;
    flex-direction: row;
    gap: 5px;
  }

  /* TODO: #11 Tweak colours and add colours for other countries */

  &.gh {
    --accent: #fcd116;
  }

  &.ng {
    --accent: #03dd8a;
  }

  &.in {
    --accent: #ff9933;
  }

  &.cn {
    --accent: #f9aeb2;
  }

  &.ro {
    --accent: #a8c4ff;
  }

  &.pk {
    --accent: #4dfcb9;
  }

  &.ma {
    --accent: #f5757c;
  }

  &.hk {
    --accent: #f2466e;
  }

  img {
    width: 200px;
    height: 200px;
    aspect-ratio: 1;
    flex-shrink: 0;
    object-fit: cover;
  }
}

.member-window .info-container {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;

  /* TODO: #30 Fix specificity issues */
  .name {
    font-family: var(--font-mono) !important;
    font-size: 1.25rem !important;
    font-weight: bold;
    text-transform: capitalize !important;
  }

  .position {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: bold;
    /* color: var(--text-secondary); */
    color: #ffd0d8;
  }

  .degree {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: bold;
    color: var(--text-secondary);
  }

  .fun-fact {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    margin-top: 5px;

    &::before {
      content: "> fun_fact ";
      color: var(--accent);
      font-size: 0.8rem;
    }
  }

  .links {
    display: flex;
    justify-content: flex-start;
    gap: 2px;
    transform: translateX(-3px);

    a {
      display: inline-flex;
      align-items: center;
      color: var(--text);
      text-decoration: none;
      font-size: 1.2rem;
      padding-top: 10px; /* TODO: Possibly change */
    }
  }
}

/* Sponsors Section */

#sponsors-grid {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 20px;
  width: 100%;
  justify-content: center;
}

#sponsors-grid .window,
#sponsors-grid .retro-link {
  --border-retro: 1px solid var(--accent);
  --accent-transparent: color-mix(in srgb, var(--accent) 30%, transparent);
  --window-bg: color-mix(in srgb, var(--accent) 10%, transparent);
  --box-shadow-retro: 4px 4px var(--accent-transparent);
}

#sponsors-grid .window {
  max-width: 325px;

  &.bronze-sponsor {
    --accent: #cd7f32;
  }

  .sponsor-level {
    background: var(--window-bg);
    border: var(--border-retro);
    padding: 2px 8px;
  }

  .content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
  }

  .sponsor-window-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  .sponsor-logo {
    width: 200px;
    height: auto;
    object-fit: contain;
  }

  .sponsor-links {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
  }

  .retro-link {
    background: var(--window-bg);
    font-size: 1.2rem;
    padding: 4px 6px;
  }
}

/* Calendar Dialog */

@keyframes calendar-slide-in {
  0% {
    transform: translateX(10px);
    opacity: 0;
  }
  100% {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes calendar-slide-out {
  0% {
    transform: translateX(0);
    opacity: 1;
  }
  100% {
    transform: translateX(10px);
    opacity: 0;
  }
}

/* TODO: #19 Fix sizing issues on mobile */
#calendar-dialog {
  --hide-transition: visibility 0s ease-in-out 0.2s, opacity 0.2s ease-in-out;
  margin: 15px auto;
  height: calc(100% - 30px);
  max-height: 100%;
  width: 100%;
  flex-direction: column;
  background: #202325;
  border: 2px solid var(--accent);
  box-shadow: var(--box-shadow-retro);
  color: var(--text);
  transition:
    display 0.2s allow-discrete,
    overlay 0.2s allow-discrete;
  animation: calendar-slide-out 0.2s ease-in-out forwards;

  &[open] {
    display: flex;
    animation: calendar-slide-in 0.2s ease-in-out forwards;
  }

  &::backdrop {
    background: transparent;
    transition: background 0.2s ease-in-out;
  }

  &[open]::backdrop {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    transition: background 0.2s ease-in-out;
  }

  header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
    color: var(--text);
    border-bottom: 1px solid #333;
  }

  .header-title {
    font-size: 1.5rem;
    text-transform: lowercase;
    font-family: var(--font-retro);
  }

  #calendar-actions {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 5px;
  }

  .calendar-action-btn {
    color: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    padding: 3px;
    background: var(--window-bg);
    border: var(--border-retro);
    box-shadow: 3px 3px var(--accent-transparent);
    text-decoration: none;
  }

  #luma-iframe {
    flex: 1;
    opacity: 1;
    border: none;
    width: 100%;
    transition: var(--hide-transition);
  }

  .loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    opacity: 1;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-size: 1.5rem;
    transition: var(--hide-transition);
  }

  .hide {
    visibility: hidden;
    opacity: 0;
    transition: var(--hide-transition);
  }
}

/* Footer */

footer {
  padding: 30px 20px;
}

#footer-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

#footer-right {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 60px;
}

footer hr {
  border: none;
  border-top: 1px solid #ccc;
  margin: 20px auto;
}

.footer-col {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.footer-col h3 {
  font-size: 1.5rem;
  /* margin-bottom: 10px; */
  font-family: var(--font-retro);
  color: var(--text-secondary);
  text-transform: lowercase;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin: 5px 0;
}

.footer-col a {
  display: inline-flex;
  justify-content: flex-start;
  align-items: center;
  text-decoration: none;
  text-transform: lowercase;
  color: var(--text);
}

#footnote {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 10px;
  text-align: center;
}

/* Mobile styles */
@media screen and (max-width: 767px) {
  #committee-grid {
    max-width: 400px;
    flex-direction: column;
    align-items: flex-start;
    gap: 35px;
  }

  #committee-grid > :nth-child(odd) {
    align-self: flex-start;
  }

  #committee-grid > :nth-child(even) {
    align-self: flex-end;
  }
}

/* Tablet + Desktop styles */
@media screen and (min-width: 768px) {
  /* Committee Section */

  #committee-grid {
    flex-direction: row;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
  }

  .member-window {
    max-width: 390px;

    .content {
      display: flex;
      flex-direction: row;
      gap: 0px;
      padding: 0;
      justify-content: flex-start;
      align-items: flex-start;
    }

    .info-container {
      padding: 10px;
    }
  }

  /* Calendar Dialog */

  #calendar-dialog {
    max-width: 400px;
    margin: 10px 10px 10px auto;
  }
}

/* Desktop styles */
@media screen and (min-width: 1024px) {
  /* Sections */

  section:not(#hero) {
    padding: 60px 20px;
    gap: 40px;
    border-bottom: var(--border-section);
  }

  /* Navbar */

  nav {
    width: calc(100% - 20px);
  }

  #nav-container {
    width: calc(100% - 20px);
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
    padding: 10px 15px;
    margin: 10px;
    gap: 10px;
    background-color: transparent;
    border: 1px solid transparent;
    box-shadow: 3px 3px transparent;
    visibility: visible;
    opacity: 1;
    transform: scale(1);
    transition:
      border-color 0.3s ease-in-out,
      box-shadow 0.3s ease-in-out;
  }

  .nav-logo-text {
    display: block;
    font-size: 2rem;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
  }

  #nav-container.after-scroll {
    justify-content: space-between;
    background-color: var(--bg);
    border: var(--border-retro);
    box-shadow: var(--box-shadow-retro);
    transition:
      border-color 0.3s ease-in-out,
      box-shadow 0.3s ease-in-out;

    .nav-logo-text {
      visibility: visible;
      opacity: 1;
      transition: opacity 0.3s ease-in-out;
    }
  }

  .nav-links {
    display: flex;
    gap: 20px;
    flex-direction: row;
  }

  #nav-toggle-btn {
    display: none;
  }

  /* Hero Section */

  #hero {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  #hero-content {
    align-items: center;
    gap: 30px;
  }

  #hero-logo {
    max-width: 300px;
  }

  #hero-links {
    flex-direction: row;
    gap: 20px;
  }

  /* Sponsors Section */

  #sponsors-grid .window {
    max-width: 600px;

    .content {
      flex-direction: row;
      align-items: center;
      gap: 30px;
    }
  }

  /* Footer */

  #footer-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  #footer-content,
  #footnote {
    max-width: 1000px;
    margin: 0 auto;
  }

  footer hr {
    max-width: 1000px;
    width: 100%;
  }

  .footer-col {
    display: flex;
    flex-direction: column;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0s !important;
    transition-duration: 0.001s !important;
    transition-delay: 0s !important;
    scroll-behavior: auto !important;
  }
}