:root {
  --gsc-bg: #f4f7fb;
  --gsc-surface: #ffffff;
  --gsc-surface-soft: #f8fafc;
  --gsc-surface-accent: #eef4ff;
  --gsc-border: #d9e2ec;
  --gsc-text: #1f2937;
  --gsc-text-soft: #5f6c7b;
  --gsc-primary: #315efb;
  --gsc-primary-hover: #264ee0;
  --gsc-primary-soft: #e9efff;
  --gsc-success: #1f9d68;
  --gsc-danger: #d6455d;
  --gsc-warning: #b7791f;
  --gsc-shadow: 0 18px 40px rgba(31, 41, 55, 0.08);
  --gsc-radius-xl: 24px;
  --gsc-radius-lg: 18px;
  --gsc-radius-md: 14px;
}

.gsc-app {
  width: 100%;
  background: var(--gsc-bg);
  color: var(--gsc-text);
  font-family: Inter, system-ui, -apple-system, sans-serif;
  border-radius: 28px;
  border: 1px solid var(--gsc-border);
  box-shadow: var(--gsc-shadow);
  overflow: hidden;
}

.gsc-shell {
  padding: 32px;
}

.gsc-login-grid {
  display: grid;
  grid-template-columns: minmax(320px, 520px) minmax(320px, 420px);
  gap: 24px;
  align-items: start;
}

.gsc-login-card,
.gsc-room-info-card,
.gsc-chat-header,
.gsc-chat-sidebar,
.gsc-chat-main,
.gsc-profile-card {
  background: var(--gsc-surface);
  border: 1px solid var(--gsc-border);
  border-radius: var(--gsc-radius-xl);
  box-shadow: var(--gsc-shadow);
}

.gsc-login-card,
.gsc-room-info-card,
.gsc-profile-card {
  padding: 28px;
}

.gsc-kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gsc-primary);
  margin-bottom: 10px;
}

.gsc-login-title,
.gsc-room-info-title,
.gsc-room-title,
.gsc-thread-title,
.gsc-profile-name {
  margin: 0;
  line-height: 1.1;
}

.gsc-login-title {
  font-size: 34px;
  margin-bottom: 12px;
}

.gsc-login-subtitle,
.gsc-room-info-description,
.gsc-chat-subline,
.gsc-status,
.gsc-profile-id-label,
.gsc-user-copy small,
.gsc-room-info-row span,
.gsc-profile-logo-title,
.gsc-avatar-note {
  color: var(--gsc-text-soft);
}

.gsc-field {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.gsc-room-select,
.gsc-name,
.gsc-password,
.gsc-priority,
.gsc-file,
.gsc-message {
  width: 100%;
  border: 1px solid var(--gsc-border);
  border-radius: var(--gsc-radius-md);
  background: var(--gsc-surface);
  color: var(--gsc-text);
  padding: 14px 16px;
  font: inherit;
  outline: none;
}

.gsc-room-select:focus,
.gsc-name:focus,
.gsc-password:focus,
.gsc-priority:focus,
.gsc-message:focus {
  border-color: var(--gsc-primary);
  box-shadow: 0 0 0 4px rgba(49, 94, 251, 0.12);
}

.gsc-avatar-picker {
  margin-top: 18px;
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border-radius: var(--gsc-radius-lg);
  background: var(--gsc-surface-soft);
  border: 1px solid var(--gsc-border);
}

.gsc-avatar-preview {
  width: 72px;
  height: 72px;
  border-radius: 22px;
  overflow: hidden;
  flex: 0 0 72px;
  background: #e8eef5;
}

.gsc-avatar-preview-img,
.gsc-user-avatar,
.gsc-message-avatar,
.gsc-room-logo-image,
.gsc-profile-avatar,
.gsc-profile-logo,
.gsc-room-info-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gsc-avatar-controls {
  display: grid;
  gap: 8px;
}

.gsc-upload-btn,
.gsc-join-btn,
.gsc-send-btn,
.gsc-room-video-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  border-radius: var(--gsc-radius-md);
  padding: 14px 18px;
  background: var(--gsc-primary);
  color: #ffffff;
  font-weight: 700;
}

.gsc-upload-btn {
  width: fit-content;
  background: var(--gsc-primary-soft);
  color: var(--gsc-primary);
}

.gsc-join-btn:hover,
.gsc-send-btn:hover,
.gsc-room-video-btn:hover {
  background: var(--gsc-primary-hover);
}

.gsc-room-info-card {
  display: grid;
  gap: 20px;
  min-height: 100%;
}

.gsc-room-info-logo-wrap {
  width: 100%;
  height: 220px;
  border-radius: 20px;
  background: var(--gsc-surface-soft);
  border: 1px dashed var(--gsc-border);
  overflow: hidden;
  display: grid;
  place-items: center;
}

.gsc-room-info-logo-fallback,
.gsc-profile-logo-fallback {
  color: var(--gsc-text-soft);
  font-size: 14px;
}

.gsc-room-info-meta,
.gsc-profile-meta {
  display: grid;
  gap: 12px;
}

.gsc-room-info-row,
.gsc-profile-meta-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.gsc-chat-screen.is-hidden {
  display: none;
}

.gsc-chat-screen {
  display: grid;
  gap: 24px;
}

.gsc-chat-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 22px 24px;
}

.gsc-chat-header-main,
.gsc-message-author,
.gsc-user-card-left {
  display: flex;
  gap: 14px;
  align-items: center;
}

.gsc-chat-header-actions,
.gsc-user-actions,
.gsc-compose-row,
.gsc-compose-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.gsc-home-btn,
.gsc-logout-btn,
.gsc-user-btn,
.gsc-video-close-btn {
  border: 1px solid var(--gsc-border);
  background: var(--gsc-surface);
  color: var(--gsc-text);
  border-radius: var(--gsc-radius-md);
  padding: 13px 16px;
  cursor: pointer;
  font-weight: 600;
}

.gsc-chat-room-logo {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: var(--gsc-primary-soft);
  color: var(--gsc-primary);
  overflow: hidden;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.gsc-chat-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr) 300px;
  gap: 24px;
  align-items: start;
}

.gsc-chat-sidebar,
.gsc-chat-main {
  padding: 20px;
}

.gsc-chat-sidebar {
  display: grid;
  gap: 16px;
}

.gsc-thread-btn {
  width: 100%;
  text-align: left;
  border: 1px solid var(--gsc-border);
  background: var(--gsc-primary-soft);
  color: var(--gsc-primary);
  border-radius: 16px;
  padding: 14px 16px;
  cursor: pointer;
  font-weight: 700;
}

.gsc-users {
  display: grid;
  gap: 12px;
}

.gsc-user-card {
  border: 1px solid var(--gsc-border);
  background: var(--gsc-surface-soft);
  border-radius: 16px;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.gsc-user-avatar,
.gsc-message-avatar {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: #e8eef5;
  flex: 0 0 44px;
}

.gsc-user-me {
  color: var(--gsc-primary);
  font-size: 12px;
}

.gsc-chat-main {
  display: grid;
  gap: 18px;
}

.gsc-thread-head {
  padding-bottom: 4px;
}

.gsc-messages {
  min-height: 420px;
  max-height: 540px;
  overflow: auto;
  display: grid;
  gap: 12px;
  padding-right: 4px;
}

.gsc-message-card {
  border: 1px solid var(--gsc-border);
  background: var(--gsc-surface);
  border-radius: 18px;
  padding: 14px 16px;
}

.gsc-message-card.priority-wichtig {
  border-color: #efd08a;
  background: #fff9ec;
}

.gsc-message-card.priority-kritisch {
  border-color: #efbcc6;
  background: #fff4f6;
}

.gsc-message-author strong {
  display: block;
}

.gsc-message-author small {
  color: var(--gsc-text-soft);
}

.gsc-message-body {
  margin-top: 10px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.65;
}

.gsc-attachment {
  margin-top: 12px;
}

.gsc-attachment a {
  color: var(--gsc-primary);
  text-decoration: none;
  font-weight: 700;
}

.gsc-compose-card {
  border: 1px solid var(--gsc-border);
  background: var(--gsc-surface-soft);
  border-radius: 20px;
  padding: 18px;
  display: grid;
  gap: 12px;
}

.gsc-message {
  min-height: 140px;
  resize: vertical;
}

.gsc-profile-avatar {
  width: 92px;
  height: 92px;
  border-radius: 28px;
  background: #e8eef5;
}

.gsc-profile-id {
  display: inline-block;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--gsc-surface-soft);
  font-size: 12px;
  word-break: break-all;
}

.gsc-profile-logo-wrap {
  min-height: 160px;
  border: 1px dashed var(--gsc-border);
  border-radius: 20px;
  background: var(--gsc-surface-soft);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.gsc-empty {
  border: 1px dashed var(--gsc-border);
  border-radius: 18px;
  padding: 18px;
  color: var(--gsc-text-soft);
  text-align: center;
  background: var(--gsc-surface-soft);
}

.gsc-status.is-error {
  color: var(--gsc-danger);
}

.gsc-status.is-success {
  color: var(--gsc-success);
}

.gsc-video-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
}

.gsc-video-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(31, 41, 55, 0.32);
  backdrop-filter: blur(6px);
}

.gsc-video-modal {
  position: absolute;
  inset: 4vh 4vw;
  background: #ffffff;
  border-radius: 24px;
  padding: 18px;
  display: grid;
  grid-template-rows: auto 1fr;
  box-shadow: 0 30px 90px rgba(31, 41, 55, 0.18);
}

.gsc-video-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.gsc-jitsi-box {
  width: 100%;
  height: 100%;
  min-height: 70vh;
  overflow: hidden;
  border-radius: 18px;
  margin-top: 14px; 
  border: 1px solid var(--gsc-border);
}

@media (max-width: 1180px) {
  .gsc-login-grid,
  .gsc-chat-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .gsc-shell {
    padding: 18px;
  }

  .gsc-chat-header,
  .gsc-chat-header-actions,
  .gsc-compose-row,
  .gsc-compose-actions,
  .gsc-user-actions,
  .gsc-avatar-picker {
    flex-direction: column;
    align-items: stretch;
  }
}