:root {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color-scheme: light dark;
  --page-bg: linear-gradient(135deg, #1d1f33 0%, #2f365f 50%, #4f5eb3 100%);
  --card-bg: rgba(255, 255, 255, 0.96);
  --card-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  --heading-color: #1d1f33;
  --label-color: #2d2f43;
  --input-border: #c3c8e8;
  --input-focus-border: #4f5eb3;
  --input-focus-shadow: 0 0 0 3px rgba(79, 94, 179, 0.2);
  --button-bg: #4f5eb3;
  --button-bg-hover: #3e4c9a;
  --button-text: #ffffff;
  --toggle-box-bg: rgba(255, 255, 255, 0.9);
  --toggle-box-border: rgba(0, 0, 0, 0.15);
  --toggle-track-bg: #d7dcff;
  --toggle-knob-bg: #ffffff;
  --toggle-icon: #2a2f55;
}

:root[data-theme='dark'] {
  --page-bg: linear-gradient(135deg, #0f111c 0%, #171d33 50%, #252f58 100%);
  --card-bg: rgba(22, 26, 43, 0.95);
  --card-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  --heading-color: #f3f4ff;
  --label-color: #d7dbf6;
  --input-border: #49527f;
  --input-focus-border: #8493ee;
  --input-focus-shadow: 0 0 0 3px rgba(132, 147, 238, 0.24);
  --button-bg: #6474d3;
  --button-bg-hover: #8090ef;
  --button-text: #ffffff;
  --toggle-box-bg: rgba(18, 23, 40, 0.9);
  --toggle-box-border: rgba(173, 183, 230, 0.25);
  --toggle-track-bg: #3e4a83;
  --toggle-knob-bg: #e9ecff;
  --toggle-icon: #e2e6ff;
}

:root[data-theme='light'] {
  --page-bg: linear-gradient(135deg, #a6b7e4 0%, #b4c2e8 50%, #c0cceb 100%);
  --card-bg: rgba(221, 229, 250, 0.95);
  --card-shadow: 0 16px 40px rgba(24, 31, 69, 0.28);
  --heading-color: #1d1f33;
  --label-color: #2d2f43;
  --input-border: #95a6d8;
  --input-focus-border: #3d4ea4;
  --input-focus-shadow: 0 0 0 3px rgba(61, 78, 164, 0.24);
  --button-bg: #4658ac;
  --button-bg-hover: #394993;
  --button-text: #ffffff;
  --toggle-box-bg: rgba(214, 223, 247, 0.93);
  --toggle-box-border: rgba(32, 41, 82, 0.26);
  --toggle-track-bg: #a7b6e6;
  --toggle-knob-bg: #e9eeff;
  --toggle-icon: #2a2f55;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  background: var(--page-bg);
  transition: background 0.25s ease;
}

.brand-badge {
  position: fixed;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0;
  color: var(--heading-color);
  font-weight: 700;
  font-size: 1.5rem;
}

.brand-badge img {
  width: 42px;
  height: 42px;
  display: block;
}

:root[data-theme='dark'] .brand-badge img {
  filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.35)) drop-shadow(0 2px 6px rgba(0, 0, 0, 0.55));
}

.theme-toggle-box {
  position: fixed;
  top: 0.85rem;
  right: 0.85rem;
  background-color: var(--toggle-box-bg);
  border: 1px solid var(--toggle-box-border);
  border-radius: 12px;
  padding: 0.35rem;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(4px);
}

.theme-toggle {
  border: 0;
  background: transparent;
  color: var(--toggle-icon);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  padding: 0.2rem;
}

.theme-toggle__icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
}

.theme-toggle__icon svg {
  width: 100%;
  height: 100%;
}

.theme-toggle__switch {
  width: 34px;
  height: 18px;
  border-radius: 999px;
  background: var(--toggle-track-bg);
  position: relative;
}

.theme-toggle__switch::after {
  content: '';
  width: 14px;
  height: 14px;
  position: absolute;
  top: 2px;
  left: 2px;
  border-radius: 50%;
  background: var(--toggle-knob-bg);
  transition: transform 0.2s ease;
}

:root[data-theme='dark'] .theme-toggle__switch::after {
  transform: translateX(16px);
}

.page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.login-wrapper {
  width: 100%;
  max-width: 360px;
  background-color: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.content-wrapper {
  width: 100%;
  max-width: 560px;
  background-color: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  padding: 2rem;
  color: var(--heading-color);
  text-align: center;
}

.content-wrapper h1 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.content-wrapper p {
  margin-top: 0;
  margin-bottom: 1.25rem;
  color: var(--label-color);
}

.servers-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
  text-align: left;
}

.server-card {
  border-radius: 12px;
  padding: 0.85rem;
  border: 1px solid color-mix(in srgb, var(--input-border) 65%, transparent);
  background: color-mix(in srgb, var(--card-bg) 88%, var(--button-bg) 12%);
}

.server-card[data-server-type='survival'] {
  background: color-mix(in srgb, var(--card-bg) 82%, var(--button-bg) 18%);
}

.server-card[data-server-type='lobby'] {
  background: color-mix(in srgb, var(--card-bg) 90%, var(--input-focus-border) 10%);
}

.server-card[data-server-type='development'] {
  background: color-mix(in srgb, var(--card-bg) 84%, var(--toggle-track-bg) 16%);
}

.server-card p {
  margin: 0.2rem 0;
}

.server-card__name {
  font-weight: 700;
  color: var(--heading-color);
}

.server-card__error {
  margin-top: 0.45rem;
  color: var(--label-color);
  font-weight: 600;
}

.server-empty {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--label-color);
  font-weight: 600;
}

.login-wrapper h1 {
  margin: 0 0 0.35rem;
  text-align: center;
  color: var(--heading-color);
}

.login-wrapper label {
  color: var(--label-color);
  font-weight: 600;
  text-align: left;
}

.login-message {
  margin: 0;
  min-height: 1.25rem;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.2;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.login-message.is-visible {
  opacity: 1;
}

.login-message.is-error {
  color: #7a1515;
  background-color: rgba(248, 201, 201, 0.9);
  border: 1px solid rgba(170, 40, 40, 0.35);
}

:root[data-theme='dark'] .login-message.is-error {
  color: #ffd8d8;
  background-color: rgba(128, 36, 36, 0.38);
  border-color: rgba(255, 142, 142, 0.45);
}

#pincode {
  width: 100%;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
  font-size: 1rem;
}

#pincode:focus {
  outline: none;
  border-color: var(--input-focus-border);
  box-shadow: var(--input-focus-shadow);
}

#login-btn {
  margin-top: 0.5rem;
  align-self: center;
  border: none;
  border-radius: 10px;
  background-color: var(--button-bg);
  color: var(--button-text);
  font-weight: 600;
  padding: 0.7rem 1.5rem;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease;
}

#login-btn:hover {
  background-color: var(--button-bg-hover);
  transform: translateY(-1px);
}

#login-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

#login-btn:disabled:hover {
  background-color: var(--button-bg);
  transform: none;
}

#logout-btn {
  border: none;
  border-radius: 10px;
  background-color: var(--button-bg);
  color: var(--button-text);
  font-weight: 600;
  padding: 0.7rem 1.5rem;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease;
}

#logout-btn:hover {
  background-color: var(--button-bg-hover);
  transform: translateY(-1px);
}