:root {
  /* Sizes */
  --rhythm: 1.6;
  --spacing: calc(var(--rhythm) * 1rem);
  --max-content-width: 90rem;
  --min-tap-size: 48px;

  /* Colors */
  --color-purple: oklch(66% 0.2 306);
  --color-lavender: oklch(70% 0.15 306);
  --color-pink: oklch(70% 0.15 348);
  --color-yellow: oklch(85% 0.1 108);
  --color-cyan: oklch(85% 0.1 190);
  --color-cyan-light: oklch(88% 0.03 190);

  --color-background: oklch(16% 0.011 248);
  --color-text: oklch(75% 0.018 248);
  --color-text-bright: #fff;

  background-color: var(--color-background);
  color-scheme: dark;
  overflow-x: clip;
}

*,
*::before,
*::after {
  background-repeat: no-repeat;
  box-sizing: border-box;
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: none;
}

::-webkit-scrollbar-thumb {
  background: #2d2d2d;
  border-radius: 20px;
}
::-webkit-scrollbar-thumb:hover {
  background: #555;
}

body {
  background-color: var(--color-background);
  color: var(--color-text);
  font-family: Inter, Roboto, 'Helvetica Neue', 'Arial Nova', 'Nimbus Sans', Arial, sans-serif;
  font-size: clamp(1rem, 0.904rem + 0.481vw, 1.25rem);
  line-height: var(--rhythm);
  justify-content: space-between;
  margin: 0;
  min-height: 100dvh;
  position: relative;
}

body,
main,
header {
  display: flex;
  gap: var(--spacing);
  flex-direction: column;
  position: relative;
  padding-top: 100px;
}

main,
header {
  align-self: center;
  max-width: var(--max-content-width);
  width: 100%;
}

header {
  flex: 0;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding-block: var(--spacing);
  text-align: center;
  z-index: 100;
}

main {
  flex: 1;
  justify-content: center;
}


.form {
    border: none;
    width: 30%;
    font-size: 24px;
    border-radius: 10px 0px 0px 10px;
    padding: 10px;
}
.file {
    border: 1px solid #1d1d1d;
    border-radius: 20px;
    padding: 15px;
    font-size: 15px;
}

.success-message {
    padding: 10px;
    border: 1px solid #1d1d1d;
    border-radius: 10px;
    margin: 15px;
    max-width: 400px;
    font-size: 22px;
    background: #182229 no-repeat;
    background-image: url("/assets/catlink.webp");
    background-size: 20%;
    background-position: right;
    box-shadow: -4px 5px 10px #3b5258;
}

header {
    display: flex;
    border-radius: 20px;
    margin-top: -55px;
    justify-content: center;
    text-decoration: none !important;
    position: fixed;
}

.menu {
  padding: 25px;
    background: rgb(42 42 42 / 20%);
    border-radius: 0 0 20px 20px;
    backdrop-filter: blur(8px);
}
.menu a {
    text-decoration: none;
    padding-left: 5px;
    text-transform: uppercase;
}

.left-content::after,
.site-navigation::after {
  background-color: red;
  z-index: 10000;

  /* Comment out to debug */
  visibility: hidden;
}

footer a {
    opacity: .5;
    text-decoration: none;
}

.drop-zone {
    border: 1px dashed #424242;
    padding: 20px;
    text-align: center;
    margin: 20px 0;
    cursor: pointer;
    border-radius: 20px;
    transition: all 0.3s ease;
}
.drop-zone.dragover {
    border-color: #000;
    background-color: #f0f0f0;
}
.error-message {
    color: #d32f2f;
    margin-top: 10px;
}
.button {
    padding: 10px 20px;
    background-color: #1976d2;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    margin-top: 10px;
}
.button:hover {
    background-color: #1565c0;   
}


.t_area {
    padding: 10px;
    background: rgb(22, 22, 22);
    border: 1px solid rgb(52, 52, 52) !important;
    min-width: 100%;
    min-height: 500px;
    border-radius: 10px;
    font-size: 15px !important;
    z-index: 1 !important;
}


textarea {
    background: rgb(22, 22, 22);
    border: 1px solid rgb(52, 52, 52) !important;
    min-width: 100%;
    min-height: 500px;
    border-radius: 10px;
    font-size: 15px !important;
    z-index: 1 !important;
    transition: 0.5s ease;
}

textarea:active, textarea:after, textarea:focus, textarea:hover {
    border: 1px solid rgb(60, 60, 60) !important;
    outline: 0;
    outline-offset: 0;
    transition: 0.5s ease;
}


    .cookie-popup {
      position: fixed;
      bottom: 20px;
      left: 20px;
      width: 350px;
      padding: 15px;
      background-color: #0a0e12;
      background-image: url(/assets/cookie.webp);
      background-size: 130px;
      background-position: right;
      border: 1px solid #2e2e2e;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      opacity: 0;
      transform: translateY(100px);
      transition: opacity 0.5s ease, transform 0.5s ease;
      font-family: Arial, sans-serif;
      box-shadow: 1px 0px 20px #252424;
    }

    .cookie-popup.show {
      opacity: 1;
      transform: translateY(0);
    }

    .cookie-popup p {
      margin: 5px 100px 15px 0px;
      font-size: 14px;
      color: #a6a6a6;
    }

    .cookie-popup button {
      padding: 8px 16px;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      font-size: 14px;
      margin-right: 10px;
    }

    .cookie-popup .accept-btn {
      background: linear-gradient(45deg, var(--color-lavender), var(--color-cyan));
      color: #000000;
      border-radius: 10px;
    }

    .cookie-popup .close-btn {
      background-color: #23272a;
      color: #c7c7c7;
      border-radius: 10px;
    }




/* Swaps to a two-column layout when marker is in-view */
@keyframes expand-content {
  0%, 100% {
    flex-direction: row;
    align-items: center;
    max-height: 30rem;
  }
}

@keyframes wall {
  0%, 100% {
    width: 50%;
  }
}

@keyframes kitten {
  0%, 100% {
    background-image: url("/assets/kitten.webp");
    inset-inline-start: calc(50vw - calc(var(--image-width) * var(--image-clip-offset)));
    transform: none;
    width: 50%;
  }
}

.left-content {
  animation-name: main-content;

  /* Content width marker */
  /* When this is in-view, the animations will trigger */
  &::after {
    content: '';
    position: fixed;
    top: 50%;
    inset-inline-start: var(--content-min-width);

    width: 1px;
    height: 50px;

    view-timeline: --content-width inline;
  }
}

.right-content {
  animation-name: main-content, right-content;
}

@keyframes main-content {
  0%, 100% {
    flex: 1;
    margin-inline-end: 0;
    margin-block-end: calc(var(--spacing) * 2);
    max-width: calc(50% - var(--spacing) / 2);
  }
}

@keyframes right-content {
  0%, 100% {
    align-self: flex-end;
    padding-inline-start: calc(var(--image-width) - var(--image-width) * var(--image-clip-offset));
  }
}

/*
  Navigation swaps between hidden to expanded when there's enough space
*/

.site-header {
  overflow: hidden;
}

.m-span {
    color: #1d1d1d;
    background: linear-gradient(45deg, var(--color-lavender), oklch(0.61 0.07 190.14));
    padding: 10px;
    border-radius: 12px;
    text-transform: capitalize;
    transition: 0.3s;
}
.m-span:hover {
    background: linear-gradient(45deg, var(--color-lavender), var(--color-cyan));
    box-shadow: 0 4px 15px rgba(136, 219, 203, 0.4);
    transition: 0.3s;
}
/* Navigation */
.site-navigation {
  flex-shrink: 0;
  position: relative;
  width: max-content;
  visibility: hidden;

  animation-name: expand-navigation;
  animation-timeline: --expanded-navigation;

  /* Marker */
  &::after {
    content: '';
    display: block;
    position: absolute;
    inset-block-start: 0;
    inset-inline-end: 0;

    width: 1px;
    height: 100%;

    view-timeline: --expanded-navigation inline;
  }
}

@keyframes expand-navigation {
  0%,
  100% {
    /* Setting custom props for children */
    --nav-wrapper-display: block;
    --nav-wrapper-transform: none;
    --nav-wrapper-background: transparent;

    visibility: visible;
  }
}

/* Navigation list */
.nav-list {
  display: flex;
}

/* Menu button, display:none on large screens */
.hamburger-icon {
  animation-name: hide-menu-button;
  animation-timeline: --expanded-navigation;
}

@keyframes hide-menu-button {
  0%,
  100% {
    display: none;
  }
}

/* Menu close button, display:none unless menu opened */
.close-icon {
  display: none;
  position: fixed;
  z-index: 100;
}

/* Open/close animation */

/* Menu styling */
/* Since the custom props are set inside the animation (which triggers on large screens), the defaults will be used on small screens */
.navigation-animation-wrapper {
  background-color: var(--nav-wrapper-background, var(--color-background));
  display: var(--nav-wrapper-display, flex);
  align-items: center;
  justify-content: center;
  inset: 0;
  transform: var(--nav-wrapper-transform, translateX(100%));
  z-index: 100;
}

/* On open */

/* 
  Because we're swapping non-animatable properties, we'll use a keyframe animation
  to first animate the animatable properties while preserving the layout
  and then, at the last moment, allow the non-animatable properties to swap out
*/

@keyframes slide-out {
  0% {
    transform: none;
  }

  100% {
    transform: translateX(100%);
  }

  /* Preserve properties until right before the end */
  0%, 99% {
    background-color: var(--color-background);
    display: flex;
    position: fixed;
    width: 100%;
  }
}

@keyframes opacity-out {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }

  /* Preserve properties until right before the end */
  0%, 99% {
    flex-direction: column;
  }
}

@supports not (animation-timeline: view(inline)) {
  /* Show warning on non-supporting browsers */
  .warning {
    display: block;
    font-size: 0.8em;
    text-align: center;
    padding-inline: var(--image-aware-padding);
  }

  /* Smooth menu transition on non-supporting browsers */
  /* Just because it doesn't work doesn't mean it can't be pretty #me */
  .site-navigation {
    transition: 0.25s ease-in-out;
    visibility: visible;
  }
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    width: 2.5em;
}
/* Header styles */

.warning {
  display: none;
}

.site-navigation {
  flex: 1;
}

.nav-list {
  gap: var(--spacing);
  margin: 0;
  padding: 0;

  & li,
  & a {
    display: block;
  }

  & a {
    text-decoration: none;
    padding: 0.25em 0.5em;
  }

  li:first-child,
  & li:has(.button) {
    margin-inline-start: auto;
  }

  & li:has(.button) {
    margin-inline-end: var(--spacing);
  }
}

/* Header page title */
h1 {
  border-block: 1px solid transparent; /* alignment with button/links */
  font-size: 1em;
  font-weight: 200;
  line-height: var(--rhythm);
  letter-spacing: 0.02em;
  margin: 0;
  padding-block: 0.25em; /* Match links */
  white-space: nowrap;

  & span {
    color: var(--color-text-bright);
    font-weight: 700;
  }
}

/* Section title */

h2 {
  font-size: clamp(2rem, 1.231rem + 3.846vw, 4rem);
  font-weight: 200;
  line-height: 1.1;
  text-wrap: balance;
  margin: 0;
  margin-block-end: var(--spacing);

  & span {
    color: var(--color-cyan);
  }

  /* Behold, the lone media query in this entire document */
  @media (min-width: 40rem) {
    font-weight: 100;
  }
}

a {
  color: var(--color-text-bright);
  font-weight: 500;
  text-underline-offset: 0.25em;
  text-decoration-thickness: 1px;
  transition: 0.25s;

  &:hover,
  &:focus {
    color: var(--color-cyan);
  }
}

p {
  margin: 0;
  margin-block-end: var(--spacing);
}

footer {
  font-size: 0.8em;
  text-align: center;
  margin-inline: auto;
  position: relative;
  width: max-content;
  max-width: 100%;
  z-index: 2;

  &::before {
    content: '';
    position: absolute;
    inset: 0;

    background-color: var(--color-background);
    filter: blur(20px);
    opacity: 0.6;
  }

  p {
    margin-block: calc(var(--spacing) / 2);
    margin-inline: var(--spacing);
    position: relative;
  }
}

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

:root {
  /* Background glows */
  --color-glow-yellow: oklch(98% 0.01 108);
  --color-glow-teal: oklch(92.73% 0.04 190);
  --color-glow-pink: oklch(92.73% 0.04 348);
  --color-glow-blue: oklch(80% 0.04 248);
  --color-glow-purple: oklch(30% 0.075 306);

  /* --color-text: oklch(96% 0.032 107); */

  /* Kitten image */
  --image-width: min(80px, 15vw);
  --image-height: calc(var(--image-width) * 2.1283);
  --image-clip-offset: 0.15094;
  --image-outline-width: 1px;
  --image-outline-color: oklch(70% 0.2 318);

  --image-aware-padding: max(var(--spacing), var(--image-width) * 0.14);
}

body {
  padding-block-start: var(--spacing);
  padding-inline: var(--image-aware-padding);

  /* Background glows */
  &::before,
  &::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    mix-blend-mode: color-dodge;
    opacity: 0.6;
    z-index: 0;
  }

  /* Top left background glow */
  &::before {
    --light-size: 70vmin;

    background-image: radial-gradient(circle at center, var(--color-glow-yellow), black 70%);
    background-size: var(--light-size) var(--light-size);
    background-position: calc(50% - min(100vw, var(--max-content-width)) / 2 + 5vw) calc(var(--light-size) / -2 - 2vmin);
  }

  /* Bottom right background glow */
  &::after {
    --light-size: 100vw;

    background-image: radial-gradient(circle at center, var(--color-glow-blue), black 70%);
    background-size: var(--light-size) var(--light-size);
    background-position: calc(100% + var(--light-size) / 2 + 2vmin) calc(100% + var(--light-size) / 2 + 2vmin);
  }
}

main {
  &::before,
  &::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
  }

  /* Wall */
  &::before {
    --background-size: 70vmax;
    --border-position: calc(var(--image-width) * var(--image-clip-offset) - var(--image-outline-width));

    background-image: radial-gradient(circle at center, var(--color-glow-purple), transparent 70%);
    background-size: var(--background-size) var(--background-size);
    background-position: calc(100% + var(--background-size) / 2) 50%;

    border-inline-end: var(--image-outline-width) solid var(--image-outline-color);
    border-image: linear-gradient(transparent, var(--image-outline-color), transparent) 1%;
    inset-inline-end: var(--border-position);
    opacity: 0.5;
    z-index: 1;
  }

  /* Kitten */
  &::after {
    --gradient-clip: calc(var(--image-clip-offset) * 100% - var(--image-outline-width));

    background-image: url("/assets/kitten.webp"),
      linear-gradient(90deg, var(--color-background) var(--gradient-clip), transparent var(--gradient-clip));
    background-position: 0% calc(10% + var(--spacing));
    background-size: var(--image-width) auto;
    min-height: calc(var(--image-height) + var(--spacing) * 5);
    transform: scaleX(-1);
    z-index: 2;
  }

  & > * {
    margin-inline-end: calc(var(--image-width) - var(--image-aware-padding));
  }
}

.left-content,
.right-content {
  max-width: 50ch;
  position: relative;
  z-index: 10;
}

@property --gradient-start {
  syntax: '<color>';
  inherits: false;
  initial-value: pink;
}

@property --gradient-end {
  syntax: '<color>';
  inherits: false;
  initial-value: purple;
}

/* Links */

main a {
  --gradient-start: var(--color-pink);
  --gradient-end: var(--color-lavender);

  background-image: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  background-clip: text;
  color: transparent;
  transition: --gradient-start 0.5s, --gradient-end 0.5s;

  &:hover,
  &:focus {
    --gradient-start: var(--color-cyan);
    --gradient-end: var(--color-yellow);

    color: transparent;
  }
}

.button.button {
  background: linear-gradient(45deg, var(--color-lavender), var(--color-cyan));
  border-radius: var(--spacing);
  border: 1px solid transparent;
  color: var(--color-background);
  font-weight: 600;
  padding-inline: var(--spacing);
  position: relative;
  transition: 0.1s;
z-index: 44;
  &::before,
  &::after {
    content: '';
    border-radius: inherit;
    transition: 0.25s ease-out;
    position: absolute;
    inset: 0;
    pointer-events: none;
  }

  /* Gradient shadow */
  &::before {
    inset: 0.2em;
    transform-origin: bottom;
    transform: scaleY(0.5);
    opacity: 0;
    z-index: -1;

    background: linear-gradient(45deg, var(--color-lavender), var(--color-cyan));
    filter: blur(calc(var(--spacing) / 2)) saturate(2);
  }

  &:hover,
  &:focus {
    background: var(--color-background);
    border-color: var(--color-lavender);
    color: var(--color-text-bright);

    &::before,
    &::after {
      transform: none;
      opacity: 1;
    }
  }
}

/* Menu buttons */
.mobile-menu-button {
  --width: var(--min-tap-size);
  --height: var(--min-tap-size);

  --line-thickness: 2px;
  --line-spacing: 3px;

  cursor: pointer;
  display: block;
  position: absolute;
  inset-inline-end: var(--spacing);
  width: var(--width);
  height: var(--height);
  z-index: 100;

  & input {
    cursor: pointer;
    position: absolute;
    inset: 0;
    opacity: 0;
  }

  &::before,
  &::after {
    --width: 100%;
    --height: 100%;

    content: '';
    position: absolute;
    inset-inline-start: 0;
    width: var(--width);
    height: var(--height);
  }

  &:hover,
  &:focus {
    &::before,
    &::after {
      --color-text-bright: var(--color-cyan);
    }
  }
}
img.icons {
    width: 50px;
    opacity: 0.7;
    padding: 5px;
    transition: 0.3s;
}
img.icons:hover {
  padding: 0px;
  opacity: 1;
  transition: 0.3s;
}
.hamburger-icon {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 100%);

  &::before,
  &::after {
    --height: calc(var(--line-thickness) * 3 + var(--line-spacing) * 2);

    inset-block-start: calc(50% - var(--height) / 2);
  }

  &::before {
    border-block: var(--line-thickness) solid var(--color-text-bright);
  }

  &::after {
    border-block-start: var(--line-thickness) solid var(--color-text-bright);
    margin-block-start: calc(var(--line-thickness) + var(--line-spacing));
  }
}

.close-icon {
  inset-block-start: calc(var(--spacing) * 2);
  inset-inline-end: calc(var(--spacing) + var(--image-aware-padding));

  &::before,
  &::after {
    --width: 75%;
    --height: 0;

    border-block-start: var(--line-thickness) solid var(--color-text-bright);
    transform-origin: 50% 50%;
    margin-inline: auto;
    inset-block-start: calc(50% - var(--line-thickness) / 2);
    inset-inline: 0;
  }

  &::before {
    transform: rotate(45deg);
  }

  &::after {
    transform: rotate(-45deg);
  }
}
/* Центральная форма */
.center-form {
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: var(--spacing) 0;
}

.url-form {
  width: 100%;
  max-width: 500px;
  position: relative;
}

.input-group {
  display: flex;
  gap: var(--spacing);
  align-items: center;
  flex-wrap: wrap;
}

#urlInput {
  flex: 1;
  min-width: 200px;
  padding: 0.75em 1em;
  border: 2px solid var(--color-lavender);
  border-radius: var(--spacing);
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-bright);
  font-size: 1em;
  transition: border-color 0.3s, box-shadow 0.3s;
}

#urlInput:focus {
  outline: none;
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(136, 219, 203, 0.3);
}

#urlInput::placeholder {
  color: var(--color-text);
  opacity: 0.7;
}

#urlInput.invalid {
  border-color: var(--color-pink);
  box-shadow: 0 0 0 3px rgba(255, 107, 159, 0.3);
}

.error-message {
  color: var(--color-pink);
  font-size: 0.9em;
  margin-top: 0.5em;
  display: none;
}

.button {
  white-space: nowrap;
  padding: 0.75em 1.5em;
}

/* Адаптивность */
@media (max-width: 768px) {
  .input-group {
    flex-direction: column;
  }
  
  .button {
    width: 100%;
  }
  
  #urlInput {
    min-width: 100%;
  }
}

/* Анимация для формы */
.center-form {
  animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Улучшенные стили для кнопки */
.button:hover,
.button:focus {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(136, 219, 203, 0.4);
}

.button:active {
  transform: translateY(0);
}