:root {
  --mobile-touch-target: 44px;
}

/* Modal Overlay */
.settings-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.24s ease, visibility 0.24s ease;
}

.settings-modal-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Modal Content */
.settings-modal {
  width: min(520px, 92vw);
  max-height: min(86vh, 760px);
  overflow-y: auto;
  overflow-x: hidden;
  /* Hide scrollbar visually but maintain scroll functionality */
  -ms-overflow-style: none;
  /* IE and Edge */
  scrollbar-width: none;
  /* Firefox */
  background: var(--unified-glass);
  backdrop-filter: blur(30px) saturate(2) brightness(1.3);
  -webkit-backdrop-filter: blur(30px) saturate(2) brightness(1.3);
  border: 2px solid var(--unified-border);
  border-radius: var(--radius-xl, 24px);
  box-shadow: inset 0px 3px 12px rgba(255, 255, 255, 0.4), inset -2px -3px 6px rgba(255, 255, 255, 0.25), 0 20px 40px rgba(0, 0, 0, 0.08), 0 8px 16px rgba(0, 0, 0, 0.05);
  padding: 24px 22px 20px;
  position: relative;
  transform: translateY(0) scale(1);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
}

/* Hide scrollbar for Chrome, Safari and Opera */
.settings-modal::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.settings-modal-overlay.hidden .settings-modal {
  transform: translateY(20px) scale(0.95);
}

.settings-modal-close {
  all: unset;
  width: 34px;
  height: 34px;
  cursor: pointer;
  font-size: 22px;
  line-height: 34px;
  text-align: center;
  color: #7f8796;
  border-radius: 50%;
  transition: color 0.15s, background 0.15s, transform 0.15s;
}

.settings-modal-close:hover {
  color: #2c3545;
  background: rgba(0, 0, 0, 0.05);
  transform: translateY(-1px);
}

.settings-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.settings-modal-status-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.settings-modal-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.settings-modal-input-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.settings-modal-action-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.settings-modal-title {
  font-size: 1.75rem;
  line-height: 1.15;
  font-weight: 800;
  color: #171b23;
  margin: 0;
  letter-spacing: 0.01em;
}

.apikey-status {
  font-size: 0.95rem;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 14px;
  border: 1px solid rgba(0, 123, 255, 0.24);
  background: rgba(0, 123, 255, 0.12);
  color: #4d8fdf;
}

.apikey-status.status-ok {
  color: #16a34a;
  background: rgba(22, 163, 74, 0.1);
}

.apikey-status.status-info {
  color: #4d8fdf;
}

.apikey-input {
  width: 100%;
  box-sizing: border-box;
  padding: 14px 16px;
  border: 1.5px solid var(--unified-border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  font-size: 1.06rem;
  font-weight: 600;
  color: #1a1a1a;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: inset 0px 1px 3px rgba(255, 255, 255, 0.4), 0 4px 12px rgba(0, 0, 0, 0.05);
}

.apikey-input:focus {
  border-color: var(--accent, #007bff);
  background: rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.16), inset 0px 1px 3px rgba(255, 255, 255, 0.6);
}

.apikey-input::placeholder {
  color: #aaa;
}

.settings-modal .apikey-btn {
  all: unset;
  min-height: 54px;
  padding: 0 18px;
  border: 1.5px solid var(--unified-border);
  border-radius: 16px;
  background: var(--unified-button);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  font-size: 1rem;
  font-weight: 700;
  color: #1a1a1a;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
  box-sizing: border-box;
  box-shadow: inset 0 1px 3px rgba(255, 255, 255, 0.5), 0 4px 12px rgba(0, 0, 0, 0.06);
}

.settings-modal .apikey-btn:hover {
  background: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
  box-shadow: inset 0 1px 3px rgba(255, 255, 255, 0.6), 0 10px 24px rgba(0, 0, 0, 0.08);
}

.settings-modal .apikey-btn-primary {
  color: #1a1a1a;
  background: linear-gradient(120deg, rgba(24, 119, 242, 0.2), rgba(47, 132, 246, 0.1) 52%, rgba(13, 100, 230, 0.15));
  border-color: rgba(24, 119, 242, 0.3);
  box-shadow: inset 0 1px 4px rgba(255, 255, 255, 0.5), 0 8px 20px rgba(24, 119, 242, 0.15);
}

.settings-modal .apikey-btn-primary:hover {
  background: linear-gradient(120deg, rgba(24, 119, 242, 0.25), rgba(47, 132, 246, 0.15) 52%, rgba(13, 100, 230, 0.2));
  box-shadow: inset 0 1px 4px rgba(255, 255, 255, 0.6), 0 12px 26px rgba(24, 119, 242, 0.25);
}

.settings-modal .apikey-btn-block {
  width: 100%;
}



.settings-modal .apikey-btn-clear {
  color: #b6454f;
  border-color: rgba(230, 80, 92, 0.34);
  background: rgba(230, 80, 92, 0.1);
}

.settings-modal .apikey-btn-clear:hover {
  background: rgba(230, 80, 92, 0.15);
}

.settings-modal-purchase {
  margin-top: 6px;
  padding: 16px;
  border-radius: 20px;
  border: 1.5px solid var(--unified-border);
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 3px rgba(255, 255, 255, 0.4);
}

.settings-modal-purchase-title {
  margin: 0 0 14px;
  text-align: center;
  color: #616b7d;
  font-size: 1rem;
  font-weight: 700;
}

.settings-modal-qr-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.settings-modal-qr-item {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.settings-modal-qr-image {
  width: min(148px, 100%);
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 12px;
  border: 1.5px solid var(--unified-border);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 4px;
}

.settings-modal-qr-label {
  font-size: 0.96rem;
  font-weight: 600;
  color: #7a8291;
}

/* Header icon button */
.header-icon-btn {
  all: unset;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: #666;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  margin-left: auto;
  /* Push to right if in flex container */
}

.header-icon-btn:hover {
  background: rgba(0, 0, 0, 0.06);
  color: #333;
}

.page-navigation {
  display: flex;
  align-items: center;
}

.app-header>.header-icon-btn {
  margin-left: auto;
  margin-right: 0;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.app-header>.header-icon-btn:hover {
  background: rgba(255, 255, 255, 0.92);
  transform: translateY(-1px);
}

@media (min-width: 1101px) {
  .chat-app-container {
    max-width: 800px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .pill-button {
    min-height: var(--mobile-touch-target);
    padding: 10px 16px;
  }

  .icon-button,
  .header-icon-btn {
    min-width: var(--mobile-touch-target);
    min-height: var(--mobile-touch-target);
  }

  .settings-modal {
    width: min(94vw, 520px);
    padding: 20px 16px 16px;
  }

  .app-header>.header-icon-btn {
    width: 36px;
    height: 36px;
    margin-right: 0;
  }

  .settings-modal-title {
    font-size: 1.55rem;
  }

  .settings-modal-action-row {
    grid-template-columns: 1fr;
  }

  .settings-modal-qr-grid {
    gap: 10px;
  }
}

.toast {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: #333;
}

@media (prefers-color-scheme: dark) {
  .toast {
    background-color: rgba(30, 30, 30, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
  }

  .settings-modal {
    background: rgba(30, 30, 30, 0.85);
  }

  .settings-modal-close {
    color: #a7afbe;
  }

  .settings-modal-close:hover {
    color: #f1f4fb;
    background: rgba(255, 255, 255, 0.1);
  }

  .settings-modal-title {
    color: #eee;
  }

  .apikey-status {
    border-color: rgba(85, 161, 255, 0.45);
    background: rgba(32, 82, 150, 0.35);
    color: #9dc6ff;
  }

  .apikey-input {
    background: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.14);
    color: #f1f5ff;
    box-shadow: inset 0px 1px 3px rgba(0, 0, 0, 0.4);
  }

  .apikey-input:focus {
    background: rgba(0, 0, 0, 0.4);
    box-shadow: 0 0 0 3px rgba(85, 161, 255, 0.25), inset 0px 1px 3px rgba(0, 0, 0, 0.6);
  }

  .apikey-input::placeholder {
    color: rgba(221, 228, 241, 0.7);
  }

  .settings-modal .apikey-btn {
    border-color: rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.08);
    color: #e6ecf8;
    box-shadow: inset 0 1px 3px rgba(255, 255, 255, 0.1), 0 4px 12px rgba(0, 0, 0, 0.2);
  }

  .settings-modal .apikey-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: inset 0 1px 3px rgba(255, 255, 255, 0.15), 0 10px 24px rgba(0, 0, 0, 0.3);
  }

  .settings-modal .apikey-btn-primary {
    color: #9dc6ff;
    background: linear-gradient(120deg, rgba(85, 161, 255, 0.15), rgba(47, 132, 246, 0.1) 52%, rgba(13, 100, 230, 0.1));
    border-color: rgba(85, 161, 255, 0.3);
  }

  .settings-modal .apikey-btn-secondary {
    background: rgba(255, 255, 255, 0.12);
  }

  .settings-modal .apikey-btn-clear {
    background: rgba(172, 55, 68, 0.24);
    border-color: rgba(246, 112, 125, 0.5);
    color: #ffb8bf;
  }

  .settings-modal-purchase {
    border-color: rgba(255, 255, 255, 0.14);
    background: rgba(0, 0, 0, 0.2);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.4);
  }

  .settings-modal-purchase-title,
  .settings-modal-qr-label {
    color: #c9d1df;
  }

  .settings-modal-qr-image {
    border-color: rgba(255, 255, 255, 0.2);
  }

  .header-icon-btn {
    color: #aaa;
  }

  .app-header>.header-icon-btn {
    border-color: rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.1);
    color: #d2daea;
  }

  .app-header>.header-icon-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #f1f5ff;
  }

  .header-icon-btn:hover {
    color: #eee;
    background: rgba(255, 255, 255, 0.1);
  }
}