* {
  box-sizing: border-box;
}

:root {
  --background: #f0f7f4;
  --surface: #ffffff;
  --surface-soft: #f8fff8;
  --primary: #52b788;
  --primary-dark: #2d6a4f;
  --accent: #e76f51;
  --muted: #52796f;
  --line: #d8f3dc;
  --line-soft: #e8f5e9;
  --text-faint: #95a5a6;
}

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

body {
  margin: 0;
  font-family: "Nunito", sans-serif;
  background: var(--background);
  color: var(--primary-dark);
}

button,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: 0;
}

textarea:focus,
input:focus {
  outline: none;
}

input {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
  position: relative;
  background-color: var(--background);
}

.blob {
  position: fixed;
  border-radius: 999px;
  pointer-events: none;
  z-index: 0;
}

.blob-one {
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  opacity: 0.15;
  background-color: #a8d5ba;
}

.blob-two {
  bottom: -100px;
  left: -60px;
  width: 350px;
  height: 350px;
  opacity: 0.12;
  background-color: #ffd6a5;
}

.nav {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: var(--surface);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-dark);
  text-decoration: none;
}

.brand-mark {
  font-size: 28px;
  line-height: 1;
}

.brand-title {
  margin: 0;
  font-family: "Quicksand", sans-serif;
  font-size: 20px;
  font-weight: 800;
}

.nav-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: var(--line-soft);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease;
}

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

.page {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 72px);
  animation: fadeIn 0.5s ease;
}

.user-home {
  width: min(100%, 672px);
  margin: 0 auto;
  padding: 32px 16px;
}

.hero {
  text-align: center;
  margin-bottom: 32px;
}

.hero-icon {
  font-size: 56px;
  line-height: 1;
  margin-bottom: 12px;
}

.hero h2 {
  margin: 0 0 8px;
  font-family: "Quicksand", sans-serif;
  font-size: 32px;
  font-weight: 800;
}

.hero p {
  margin: 0;
  color: var(--muted);
}

.chips {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.chip {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.chip-green {
  color: var(--primary-dark);
  background: var(--line);
}

.chip-orange {
  color: var(--accent);
  background: #fff3e0;
}

.start-button {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  border-radius: 16px;
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 20px rgba(82, 183, 136, 0.3);
  font-size: 16px;
  font-weight: 800;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 32px 0 16px;
  font-size: 18px;
  font-weight: 800;
}

.chat-list {
  display: grid;
  gap: 8px;
}

.empty-note {
  padding: 32px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.chat-item {
  width: 100%;
  display: block;
  padding: 12px;
  border-radius: 12px;
  color: inherit;
  background: transparent;
  text-align: left;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}

.chat-item:hover,
.chat-item.active {
  background: var(--line);
}

.chat-item:hover {
  transform: translateY(-1px);
}

.chat-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}

.chat-name {
  margin: 0;
  font-size: 14px;
  font-weight: 800;
}

.chat-time,
.chat-meta {
  color: var(--text-faint);
  font-size: 12px;
}

.chat-preview {
  margin: 0;
  color: #555;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.status-badge {
  padding: 2px 6px;
  border-radius: 6px;
  color: var(--primary-dark);
  font-size: 12px;
}

.chat-page {
  width: 100%;
  min-height: calc(100vh - 72px);
  display: flex;
  flex-direction: column;
}

.chat-header,
.chat-composer {
  background: var(--surface);
  border-color: var(--line-soft);
}

.chat-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-soft);
}

.chat-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.chat-title-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--primary-dark);
  background: transparent;
  text-decoration: none;
}

.ios-back-button {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-left: -8px;
  padding: 6px 8px 6px 0;
  border-radius: 10px;
  color: #007aff;
  background: transparent;
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0;
  transition: opacity 0.2s ease, background 0.2s ease;
}

.ios-back-button svg {
  stroke-width: 2.5;
}

.ios-back-button:hover {
  background: rgba(0, 122, 255, 0.08);
}

.ios-back-button:active {
  opacity: 0.55;
}

.chat-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
}

.chat-header p {
  margin: 2px 0 0;
  color: var(--text-faint);
  font-size: 12px;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px 16px 20px;
  background:
    radial-gradient(circle at top left, rgba(255, 214, 165, 0.18), transparent 240px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.35), rgba(240, 247, 244, 0));
}

.message-group {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  animation: bubbleIn 0.22s ease;
}

.msg-outgoing {
  justify-content: flex-end;
}

.msg-incoming {
  justify-content: flex-start;
}

.bubble-wrap {
  max-width: min(74%, 640px);
  display: flex;
  flex-direction: column;
}

.msg-outgoing .bubble-wrap {
  align-items: flex-end;
}

.msg-incoming .bubble-wrap {
  align-items: flex-start;
}

.bubble {
  position: relative;
  padding: 10px 14px;
  border-radius: 18px;
  word-wrap: break-word;
  font-size: 14px;
  line-height: 1.45;
  box-shadow: 0 10px 28px rgba(45, 106, 79, 0.09);
}

.bubble-outgoing {
  color: #ffffff;
  background: linear-gradient(135deg, #40916c, #52b788);
  border-bottom-right-radius: 6px;
}

.bubble-incoming {
  color: var(--primary-dark);
  background: linear-gradient(135deg, #ffffff, #f4fbf7);
  border: 1px solid rgba(82, 183, 136, 0.18);
  border-bottom-left-radius: 6px;
}

.bubble-outgoing::after,
.bubble-incoming::after {
  position: absolute;
  bottom: 0;
  width: 12px;
  height: 12px;
  content: "";
}

.bubble-outgoing::after {
  right: -5px;
  background: #52b788;
  clip-path: polygon(0 0, 100% 100%, 0 100%);
}

.bubble-incoming::after {
  left: -5px;
  background: #ffffff;
  border-bottom: 1px solid rgba(82, 183, 136, 0.18);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.message-meta {
  margin-top: 4px;
  padding: 0 4px;
  color: var(--text-faint);
  font-size: 11px;
  line-height: 1.2;
}

.is-pending .bubble {
  opacity: 0.75;
}

.bubble-failed {
  background: #fff3e0;
  color: var(--accent);
  border-color: rgba(231, 111, 81, 0.24);
}

.chat-composer {
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
}

.composer-row {
  display: flex;
  gap: 8px;
}

.composer-row textarea {
  flex: 1;
  min-height: 44px;
  max-height: 132px;
  resize: vertical;
  padding: 10px 14px;
  border: 2px solid var(--line);
  border-radius: 10px;
  background: var(--surface-soft);
  font-size: 14px;
}

.composer-row textarea:focus {
  border-color: var(--primary);
}

.send-button {
  min-width: 48px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: #fff;
  background: var(--primary);
}

.admin-layout {
  min-height: calc(100vh - 72px);
  display: flex;
  overflow: hidden;
}

.admin-layout.is-locked {
  display: block;
}

.admin-layout.is-locked .admin-sidebar,
.admin-layout.is-locked .admin-main {
  display: none;
}

.admin-login {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.login-panel {
  width: min(100%, 380px);
  padding: 28px;
  border: 1px solid rgba(82, 183, 136, 0.18);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 20px 60px rgba(45, 106, 79, 0.12);
  backdrop-filter: blur(12px);
}

.login-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  border-radius: 18px;
  color: #ffffff;
  background: linear-gradient(135deg, #40916c, #52b788);
  box-shadow: 0 12px 28px rgba(82, 183, 136, 0.28);
}

.login-panel h2 {
  margin: 0 0 6px;
  font-family: "Quicksand", sans-serif;
  font-size: 26px;
  font-weight: 800;
}

.login-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.login-field {
  display: grid;
  gap: 8px;
  margin-top: 22px;
}

.login-field span {
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 800;
}

.login-field input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 2px solid var(--line);
  border-radius: 12px;
  color: var(--primary-dark);
  background: var(--surface-soft);
  font-size: 15px;
}

.login-field input:focus {
  border-color: var(--primary);
}

.login-error {
  margin-top: 10px !important;
  color: var(--accent) !important;
  font-weight: 800;
}

.login-button {
  width: 100%;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
  border-radius: 12px;
  color: #ffffff;
  background: var(--primary);
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(82, 183, 136, 0.24);
}

.admin-sidebar {
  width: 288px;
  flex: 0 0 288px;
  overflow-y: auto;
  background: var(--surface);
  border-right: 1px solid var(--line-soft);
}

.admin-sidebar-head {
  position: sticky;
  top: 0;
  padding: 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
}

.admin-sidebar-head h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 18px;
}

.admin-sidebar-head p {
  margin: 4px 0 0;
  color: var(--text-faint);
  font-size: 12px;
}

.admin-sidebar-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.admin-logout {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 36px;
  border-radius: 10px;
  color: var(--primary-dark);
  background: var(--line-soft);
}

.admin-logout:hover {
  background: var(--line);
}

.admin-list {
  padding: 8px;
}

.admin-main {
  flex: 1;
  min-width: 0;
  display: flex;
}

.admin-empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}

.admin-empty-icon {
  margin-bottom: 12px;
  font-size: 64px;
}

.admin-empty p {
  margin: 0;
}

.admin-empty-title {
  color: var(--primary-dark);
  font-weight: 800;
}

.admin-empty-subtitle {
  margin-top: 4px;
  color: var(--text-faint);
  font-size: 14px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  z-index: 999;
  transform: translateX(-50%);
  padding: 12px 24px;
  border-radius: 12px;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s;
}

.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-actions {
    width: 100%;
  }

  .nav-pill {
    flex: 1;
    justify-content: center;
  }

  .admin-layout {
    min-height: calc(100vh - 112px);
  }

  .admin-sidebar {
    width: 100%;
    flex-basis: 100%;
  }

  .admin-layout.has-open-chat .admin-sidebar {
    display: none;
  }

  .admin-main {
    width: 100%;
  }

  .bubble {
    max-width: 100%;
  }

  .bubble-wrap {
    max-width: 86%;
  }
}

@keyframes bubbleIn {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}