:root {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-surface-alt: #e9edf5;
  --color-text: #1b2330;
  --color-muted: #5d6676;
  --color-accent: #00bcd4;
  --color-accent-muted: rgba(0, 188, 212, 0.1);
  --color-border: rgba(27, 35, 48, 0.08);
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
  --transition: 0.25s ease;
  color-scheme: light;
}

[data-theme="dark"] {
  --color-bg: #0f172a;
  --color-surface: #141d33;
  --color-surface-alt: #1d2842;
  --color-text: #f8fafc;
  --color-muted: #b8c2d6;
  --color-accent: #19d4ec;
  --color-accent-muted: rgba(25, 212, 236, 0.15);
  --color-border: rgba(255, 255, 255, 0.08);
  --shadow-soft: 0 10px 30px rgba(2, 12, 27, 0.6);
  --shadow-hover: 0 18px 45px rgba(2, 12, 27, 0.75);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  height: 100%;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  transition: background var(--transition), color var(--transition);
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.75rem clamp(1rem, 4vw, 2.75rem) 1rem;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--color-bg) 80%, transparent);
  border-bottom: 1px solid var(--color-border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand img {
  height: 42px;
}

.brand h1 {
  font-size: 1.25rem;
  margin: 0;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand .tagline {
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.search {
  position: relative;
  flex: 1 1 320px;
  max-width: 420px;
}

.search input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.8rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.95rem;
  transition: border var(--transition), box-shadow var(--transition), background var(--transition);
}

.search input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.search svg {
  position: absolute;
  width: 18px;
  height: 18px;
  top: 50%;
  left: 1rem;
  transform: translateY(-50%);
  fill: var(--color-muted);
}

.button, button {
  border: none;
  border-radius: 999px;
  padding: 0.65rem 1.2rem;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  box-shadow: var(--shadow-soft);
}

.button:hover,
button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

.button:active,
button:active {
  transform: translateY(1px);
}

button:disabled,
.button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.button.subtle {
  background: var(--color-surface-alt);
  box-shadow: none;
}

.button.subtle:hover {
  background: var(--color-accent);
  color: #fff;
}

.theme-toggle {
  position: relative;
  width: 48px;
  height: 24px;
  border-radius: 999px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: background var(--transition), border var(--transition);
}

.theme-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-surface);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.15);
  transition: transform var(--transition), background var(--transition);
}

.theme-toggle[data-theme='dark']::after {
  transform: translateX(24px);
}

.tag-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem clamp(1rem, 4vw, 2.75rem) 1.25rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.tag-pill {
  padding: 0.5rem 1.05rem;
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-muted);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.tag-pill.active {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: var(--shadow-soft);
}

.tag-pill:hover {
  transform: translateY(-1px);
}

.main {
  padding: 1rem clamp(1rem, 4vw, 2.75rem) 2rem;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 1rem;
}

.app-card {
  position: relative;
  padding: 1.1rem 1rem;
  border-radius: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border var(--transition);
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.app-card:focus-within {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.app-card .icon-wrapper {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--color-surface-alt);
  display: grid;
  place-items: center;
  overflow: hidden;
  flex-shrink: 0;
  transition: background var(--transition);
}

.app-card img.icon,
.app-card svg.icon {
  width: 24px;
  height: 24px;
}

.app-card .app-name {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.app-card .app-tag {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: var(--color-accent-muted);
  color: var(--color-accent);
}

.card-actions {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.card-actions button {
  padding: 0.4rem 0.75rem;
  font-size: 0.75rem;
  background: var(--color-surface-alt);
  box-shadow: none;
  width: 100%;
  justify-content: center;
}

.card-actions button:hover {
  background: var(--color-accent);
  color: #fff;
}

.add-card {
  border: 1.5px dashed var(--color-border);
  background: var(--color-surface-alt);
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--color-muted);
  gap: 0.4rem;
}

.add-card:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: var(--shadow-soft);
}

.add-card svg {
  width: 32px;
  height: 32px;
  margin-bottom: 0.5rem;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 20;
  backdrop-filter: blur(6px);
}

.modal-backdrop.active {
  display: flex;
}

.modal {
  background: var(--color-surface);
  border-radius: 20px;
  padding: 2rem;
  width: min(520px, 100%);
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--color-border);
  transform: translateY(20px);
  opacity: 0;
  transition: transform var(--transition), opacity var(--transition);
}

.modal-backdrop.active .modal {
  transform: translateY(0);
  opacity: 1;
}

.modal header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal header h2 {
  margin: 0;
  font-size: 1.25rem;
}

.modal form {
  display: grid;
  gap: 1rem;
}

.modal label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.icon-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.icon-input-group label {
  gap: 0.3rem;
}

.icon-input-group input[type='file'] {
  padding: 0.5rem 0.9rem;
  background: var(--color-surface);
  cursor: pointer;
}

.field-hint {
  margin: -0.2rem 0 0;
  font-size: 0.75rem;
  color: var(--color-muted);
}

.icon-preview {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: 12px;
  border: 1px dashed var(--color-border);
  background: var(--color-surface-alt);
}

.icon-preview[hidden] {
  display: none;
}

.icon-preview-media {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: var(--color-surface);
}

.icon-preview-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.icon-preview-meta {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

#icon-preview-name {
  font-size: 0.75rem;
  color: var(--color-muted);
  word-break: break-word;
}

.icon-preview .button {
  align-self: flex-start;
  padding: 0.35rem 0.7rem;
  font-size: 0.75rem;
}

.modal input,
.modal select {
  padding: 0.7rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text);
  font-size: 0.9rem;
  transition: border var(--transition), box-shadow var(--transition), background var(--transition);
}

.modal input:focus,
.modal select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.inline-tag {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.inline-tag label {
  flex: 1;
}

.inline-tag input {
  flex: 1;
}

.modal footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.toast {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  padding: 0.9rem 1.3rem;
  border-radius: 14px;
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--color-border);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 25;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.hidden {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Login layout */

.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 6vw, 6rem);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(0, 188, 212, 0.35), transparent 55%),
    radial-gradient(circle at bottom right, rgba(25, 212, 236, 0.2), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

.login-hero {
  color: var(--color-text);
  max-width: 460px;
  display: grid;
  gap: 1.25rem;
}

.login-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  margin: 0;
  line-height: 1.15;
}

.login-hero p {
  margin: 0;
  font-size: 1rem;
  color: var(--color-muted);
}

.login-hero__glow {
  width: 82px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent), color-mix(in srgb, var(--color-accent) 50%, transparent));
}

.login-card {
  width: min(420px, 100%);
  background: color-mix(in srgb, var(--color-surface) 92%, transparent);
  border-radius: 26px;
  padding: clamp(2.25rem, 5vw, 2.85rem);
  border: 1px solid color-mix(in srgb, var(--color-border) 80%, transparent);
  box-shadow: var(--shadow-hover);
  display: grid;
  gap: 1.75rem;
  backdrop-filter: blur(12px);
}

.login-card__header {
  display: grid;
  gap: 0.75rem;
  justify-items: center;
  text-align: center;
}

.login-card__header img {
  width: clamp(160px, 40vw, 200px);
}

.login-subtitle {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.login-card form {
  display: grid;
  gap: 1.1rem;
}

.login-card label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.login-card input[type='text'],
.login-card input[type='password'] {
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text);
  font-size: 0.95rem;
  transition: border var(--transition), box-shadow var(--transition), background var(--transition);
}

.login-card input[type='text']:focus,
.login-card input[type='password']:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
  background: var(--color-surface);
}

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
}

.remember-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  user-select: none;
  color: var(--color-text);
}

.remember-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.remember-toggle__track {
  width: 44px;
  height: 24px;
  border-radius: 999px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  padding: 2px;
  transition: background var(--transition), border var(--transition);
}

.remember-toggle__thumb {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--color-surface);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.12);
  transform: translateX(0);
  transition: transform var(--transition), background var(--transition);
}

.remember-toggle input:checked + .remember-toggle__track {
  background: var(--color-accent);
  border-color: transparent;
}

.remember-toggle input:checked + .remember-toggle__track .remember-toggle__thumb {
  transform: translateX(18px);
  background: #ffffff;
}

.remember-toggle__label {
  font-weight: 500;
}

.support-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}

.support-link:hover {
  text-decoration: underline;
}

.login-card button {
  width: 100%;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent), color-mix(in srgb, var(--color-accent) 65%, transparent));
  color: #ffffff;
  box-shadow: none;
  padding: 0.85rem 1.2rem;
  font-size: 1rem;
}

.login-card button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

.login-card .error {
  color: #f97070;
  text-align: center;
  font-size: 0.9rem;
  min-height: 1.2em;
}

@media (max-width: 960px) {
  .login-page {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
  }

  .login-hero {
    order: 2;
    text-align: center;
    justify-items: center;
  }
}

@media (max-width: 900px) {
  .header {
    flex-direction: column;
    align-items: stretch;
    gap: 1.1rem;
  }

  .controls {
    width: 100%;
    justify-content: space-between;
  }

  .search {
    flex: 1 1 auto;
  }
}

@media (max-width: 600px) {
  .header {
    padding: 1.25rem 1.25rem 1rem;
  }

  .tag-bar {
    padding: 0.75rem 1.25rem 1.25rem;
    gap: 0.6rem;
  }

  .main {
    padding: 0.5rem 1.25rem 2.5rem;
  }

  .app-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.1rem;
  }

  .card-actions {
    flex-direction: column;
    align-items: stretch;
  }
}