@import url("https://fonts.googleapis.com/css2?family=Funnel+Sans:ital,wght@0,300..800;1,300..800&display=swap");

:root {
  --gap: 1rem;
  --radius: 8px;
  --transition-speed: 0.3s;
  --pure-white: #f7f7f7;
  --pure-black: #1a1a1a;
  --color-1: #f2f9fd;
  --color-2: #e5f1f9;
  --color-3: #c4e3f3;
  --color-4: #91cce8;
  --accent-color: #56b2da;
  --color-6: #3099c7;
  --color-7: #217ba8;
  --color-8: #1c6288;
  --color-9: #1b5371;
  --color-10: #1b465f;
  --color-11: #122d3f;
  --bg-color: var(--pure-black);
  --text-color: var(--pure-white);
  --overlay-color: rgba(0, 0, 0, 0.7);
  --form-bg: var(--color-11);
  --form-text: var(--color-1);
  --disabled-bg-dark: var(--color-10);
  --disabled-text-dark: var(--color-4);
  --disabled-bg-light: var(--color-3);
  --disabled-text-light: var(--accent-color);
  --disabled-bg: var(--disabled-bg-dark);
  --disabled-text: var(--disabled-text-dark);
}

body.light {
  --bg-color: var(--pure-white);
  --text-color: #222;
  --overlay-color: rgba(255, 255, 255, 0.7);
  --form-bg: var(--color-2);
  --form-text: var(--color-11);
  --disabled-bg: var(--disabled-bg-light);
  --disabled-text: var(--disabled-text-light);
}

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

.funnel-sans-unique {
  font-family: "Funnel Sans", sans-serif;
  font-optical-sizing: auto;
  font-weight: 800;
  font-style: normal;
}

body {
  font-family: "Funnel Sans", system-ui, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  transition: background var(--transition-speed), color var(--transition-speed);
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  overflow: hidden;
  padding: 0.5rem;
  text-align: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 100;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(245, 245, 245, 0.82);
  box-shadow: 0 2px 16px 0 rgba(0, 0, 0, 0.08);
}

body:not(.light) header {
  background: rgba(40, 40, 40, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

body.light header {
  background: rgba(245, 245, 245, 0.92);
  box-shadow: 0 2px 16px 0 rgba(86, 178, 218, 0.07);
  border-bottom: 1px solid rgba(180, 200, 220, 0.12);
}

.header-glow {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -1;
  pointer-events: none;
}

.glow-circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  animation: move-glow 14s infinite alternate ease-in-out;
  mix-blend-mode: lighten;
}

.glow-circle:nth-child(1) {
  width: 480px;
  height: 480px;
  background: #b7dff6;
  top: 5%;
  left: -8%;
  animation-duration: 13s;
}

.glow-circle:nth-child(2) {
  width: 400px;
  height: 400px;
  background: #ffe7c2;
  top: 28%;
  left: 14%;
  animation-duration: 16s;
}

.glow-circle:nth-child(3) {
  width: 440px;
  height: 440px;
  background: #cbeed7;
  top: 0%;
  left: 38%;
  animation-duration: 12s;
}

.glow-circle:nth-child(4) {
  width: 380px;
  height: 380px;
  background: #f9dbe6;
  top: 32%;
  left: 62%;
  animation-duration: 15s;
}

.glow-circle:nth-child(5) {
  width: 350px;
  height: 350px;
  background: #e6e3fa;
  top: 8%;
  left: 80%;
  animation-duration: 14s;
}

@media (max-width: 900px) {
  .header-glow .glow-circle:nth-child(n + 4) {
    display: none;
  }
}

@keyframes move-glow {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, -50px);
  }
}

header h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  color: #f7f7f7; /* Светлый текст для тёмной темы */
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.18), 0 1px 0 rgba(255, 255, 255, 0.08);
  font-family: "Funnel Sans", system-ui, sans-serif;
}

body.light header h1 {
  color: #222; /* Тёмный текст для светлой темы */
  text-shadow: 0 2px 8px rgba(255, 255, 255, 0.18), 0 1px 0 rgba(86, 178, 218, 0.06);
}

header p {
  font-size: 1.2rem;
  opacity: 0.9;
  font-family: "Funnel Sans", system-ui, sans-serif;
}

.gallery {
  margin-top: calc(100px + 2rem);
  column-count: 3;
  column-gap: var(--gap);
  max-width: 1500px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 2rem;
}

@media (max-width: 1200px) {
  .gallery {
    column-count: 2;
  }
}

@media (max-width: 768px) {
  .gallery {
    column-count: 1;
  }
}

.card {
  margin-bottom: var(--gap);
  break-inside: avoid;
  display: block;
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--transition-speed) ease-out, transform var(--transition-speed) ease-out, box-shadow var(--transition-speed);
  cursor: pointer;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  text-align: initial;
}

.card.loaded {
  opacity: 1;
  transform: scale(1);
}

.card.card-empty {
  cursor: default;
}

.card img {
  width: 100%;
  display: block;
  border-radius: var(--radius);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.card:hover img {
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.card:active img {
  transform: scale(0.98);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.card:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
  border-radius: var(--radius);
}

.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-speed);
  z-index: 1000;
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox img {
  max-width: 90%;
  max-height: 90%;
  border-radius: var(--radius);
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(40, 40, 40, 0.35);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1010;
  box-shadow: 0 2px 8px rgba(40, 40, 40, 0.15);
  transition: transform 0.2s ease, background 0.2s ease;
  opacity: 0.92;
  font-family: "Material Icons", "Funnel Sans", system-ui, sans-serif;
  font-style: normal;
  font-weight: normal;
  letter-spacing: normal;
  text-transform: none;
  direction: ltr;
  -webkit-font-feature-settings: "liga";
  font-feature-settings: "liga";
}

.lightbox-prev:hover,
.lightbox-next:hover {
  transform: translateY(-50%) scale(1.1);
  background: rgba(40, 40, 40, 0.5);
}

.lightbox-prev:active,
.lightbox-next:active {
  transform: translateY(-50%) scale(0.95);
  background: rgba(40, 40, 40, 0.7);
  -webkit-font-smoothing: antialiased;
}

.lightbox-prev:focus-visible,
.lightbox-next:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.lightbox-prev {
  left: 2vw;
}

.lightbox-next {
  right: 2vw;
}

.theme-toggle {
  position: fixed;
  top: 2rem;
  right: 1rem;
  border: none;
  background: transparent;
  cursor: pointer;
  z-index: 1000;
  transition: transform 0.1s ease;
}

.theme-toggle:hover {
  transform: scale(1.1);
}

.theme-toggle:active {
  transform: scale(0.9);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
  border-radius: 999px;
}

.theme-toggle-icon {
  color: var(--text-color);
  transition: color 0.3s ease;
  font-family: "Funnel Sans", system-ui, sans-serif;
}

.upload-toggle {
  position: fixed;
  top: 2rem;
  right: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  cursor: pointer;
  z-index: 1000;
  transition: transform 0.1s ease;
  text-decoration: none;
  color: inherit;
}

.upload-toggle svg {
  width: 24px;
  height: 24px;
  color: var(--text-color);
  stroke-width: 3;
}

.upload-toggle:hover {
  transform: scale(1.1);
}

.upload-toggle:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
  border-radius: 999px;
}

.upload-container {
  margin-top: calc(100px + 2rem);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  padding: 2rem;
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

.alert {
  margin-bottom: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  background: rgba(86, 178, 218, 0.12);
  border: 1px solid rgba(86, 178, 218, 0.25);
  color: var(--text-color);
}

.alert-success {
  border-color: rgba(86, 178, 218, 0.4);
}

.alert-warning,
.alert-error,
.alert-danger {
  border-color: rgba(200, 50, 60, 0.4);
  background: rgba(200, 50, 60, 0.12);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  font-family: "Funnel Sans", system-ui, sans-serif;
  background-color: var(--form-bg);
  color: var(--form-text);
  padding: 1rem;
  border-radius: var(--radius);
}

.file-upload-wrapper {
  position: relative;
}

.file-upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 200px;
  border: 2px dashed var(--color-4);
  border-radius: var(--radius);
  background-color: var(--form-bg);
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  text-align: center;
  padding: 1rem;
}

.file-upload-label:hover {
  border-color: var(--accent-color);
  background-color: rgba(86, 178, 218, 0.1);
}

.file-upload-wrapper.dragover .file-upload-label {
  border-color: var(--accent-color);
  background-color: rgba(86, 178, 218, 0.14);
}

.file-upload-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 10px;
  stroke-width: 2;
  color: var(--form-text);
  transition: color var(--transition-speed) ease;
}

.file-upload-label span {
  font-size: 16px;
  color: var(--form-text);
  transition: color var(--transition-speed) ease;
  font-family: "Funnel Sans", system-ui, sans-serif;
}

.file-upload-wrapper input[type="file"] {
  display: none;
}

.form-actions {
  text-align: right;
  margin-top: 1rem;
}

.submit-button {
  background: var(--accent-color) !important;
  color: white !important;
  width: 100%;
  border: none;
  border-radius: var(--radius);
  padding: 12px 24px;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  font-weight: bold;
}

.submit-button:hover:not(:disabled) {
  background: #4ca0c7 !important;
  box-shadow: 0 4px 12px rgba(86, 178, 218, 0.3);
}

.submit-button:active:not(:disabled) {
  background: #3a8db0 !important;
  transform: translateY(1px);
}

.submit-button:disabled {
  background: var(--disabled-bg) !important;
  color: var(--disabled-text) !important;
  cursor: not-allowed;
  opacity: 0.8;
}

.preview-container {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--gap);
  margin-top: 1rem;
  padding: 1rem;
  background-color: var(--form-bg);
  border-radius: var(--radius);
}

.preview-wrapper {
  position: relative;
  opacity: 0;
  transform: scale(0.9);
  transition: all var(--transition-speed) ease;
}

.preview-wrapper.loaded {
  opacity: 1;
  transform: scale(1);
}

.preview-image {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 2px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(86, 178, 218, 0.2);
}

.remove-preview {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  box-sizing: border-box;
  padding: 5px 10px;
  border-radius: 0 0 var(--radius) var(--radius);
  font-size: 14px;
  color: white;
  cursor: pointer;
  transition: all 0.2s ease, box-shadow 0.3s ease;
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-family: "Funnel Sans", system-ui, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: rgba(0, 0, 0, 0.45);
}

.remove-preview:hover {
  background: rgba(200, 50, 60, 0.8);
  box-shadow: 0 4px 12px rgba(200, 50, 60, 0.2);
}

.remove-preview:active {
  background: rgba(180, 40, 50, 0.85);
  box-shadow: 0 4px 12px rgba(180, 40, 50, 0.3);
}

.remove-preview:focus-visible {
  outline: 2px solid #fff;
  outline-offset: -2px;
}

.no-images-message-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(90deg, #e5f1f9 0%, #f2f9fd 100%);
  color: #217ba8;
  padding: 18px 28px;
  border-radius: 10px;
  font-family: "Funnel Sans", system-ui, sans-serif;
  border-left: 6px solid #56b2da;
  box-shadow: 0 2px 8px rgba(86, 178, 218, 0.08);
  max-width: 340px;
  margin: 32px auto;
  font-size: 1.1rem;
  font-weight: 500;
  position: relative;
}

.no-images-message-icon::before {
  content: "🖼️";
  font-size: 2em;
  margin-right: 8px;
  display: inline-block;
  vertical-align: middle;
}

.gallery > .no-images-message-icon {
  column-span: all;
  break-inside: avoid;
}

.no-image-placeholder {
  height: 200px;
  background: #eee;
  text-align: center;
  padding-top: 80px;
  color: #888;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-style: italic;
  font-family: "Funnel Sans", system-ui, sans-serif;
}

@media (max-width: 600px) {
  .theme-toggle,
  .upload-toggle {
    top: 0.75rem;
    transform: none;
    position: fixed;
    z-index: 1100;
    display: flex;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    background: rgba(245, 245, 245, 0.88);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

  body:not(.light) .theme-toggle,
  body:not(.light) .upload-toggle {
    background: rgba(40, 40, 40, 0.72);
  }

  .theme-toggle {
    left: 0.5rem;
    right: auto;
  }

  .upload-toggle {
    left: auto;
    right: 0.5rem;
  }

  header {
    padding-top: 1.2rem;
    padding-bottom: 1.2rem;
  }

  header h1 {
    font-size: 2rem;
    padding: 0 1.5rem;
    word-break: break-word;
  }

  .gallery {
    padding-left: 8px;
    padding-right: 8px;
  }

  .card {
    margin-bottom: 1rem;
  }

  .lightbox-prev,
  .lightbox-next {
    display: none !important;
  }

  .lightbox-hint {
    position: absolute;
    bottom: 24px;
    left: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-size: 1rem;
    opacity: 0.45;
    pointer-events: none;
    text-shadow: 0 2px 8px #000;
    z-index: 1100;
    transition: opacity 0.4s;
  }
}

@media (min-width: 601px) {
  .lightbox-hint {
    display: none !important;
  }

  .lightbox-prev,
  .lightbox-next {
    display: flex !important;
  }
}

@media (max-width: 600px) {
  .lightbox-prev,
  .lightbox-next {
    display: none !important;
  }

  .lightbox-hint {
    display: block;
  }
}