/* =========================================================
   Filmore Shell — Stylesheet
   Clean, professional legal-tool aesthetic.
   No external fonts, no CDN dependencies.
   ========================================================= */

/* --------------------------------------------------------- */
/* Screen management                                          */
/* --------------------------------------------------------- */
.screen { display: flex; }
.hidden { display: none !important; }

.chat-screen {
  flex-direction: column;
  height: 100vh;
}

/* --------------------------------------------------------- */
/* Login screen                                               */
/* --------------------------------------------------------- */
.login-screen {
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--color-bg);
}

.login-card {
  width: 100%;
  max-width: 460px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 36px 40px;
}

.login-logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 28px;
}

.login-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.login-description {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.field-group {
  margin-bottom: 20px;
}

.field-label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--color-text-muted);
  margin-bottom: 7px;
}

.psk-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.psk-input,
.endpoint-input {
  width: 100%;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}

.psk-input {
  padding-right: 42px;   /* room for the eye button */
}

.endpoint-input {
  font-family: var(--font-sans);
  font-size: 14px;
}

.psk-input:focus,
.endpoint-input:focus {
  border-color: var(--color-accent);
}

.toggle-visibility {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  transition: color 0.15s;
}

.toggle-visibility:hover { color: var(--color-text); }

.toggle-visibility svg {
  width: 16px;
  height: 16px;
}

.field-error {
  font-size: 12px;
  color: var(--color-error);
  margin-top: 5px;
  min-height: 16px;
  opacity: 0;
  transition: opacity 0.15s;
}

.field-error.visible { opacity: 1; }

.unlock-btn {
  width: 100%;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 11px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  margin-top: 4px;
}

.unlock-btn:hover:not(:disabled) { background: var(--color-accent-hover); }
.unlock-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.login-footer {
  font-size: 11px;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------- */
/* Lock button (in header)                                    */
/* --------------------------------------------------------- */
.lock-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: border-color 0.15s, color 0.15s;
}

.lock-btn:hover {
  border-color: var(--color-error);
  color: var(--color-error);
}

.lock-btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:           #0f1117;
  --color-surface:      #1a1d27;
  --color-surface-alt:  #22263a;
  --color-border:       #2e3348;
  --color-text:         #e8eaf0;
  --color-text-muted:   #8b90a8;
  --color-accent:       #4f7ef8;
  --color-accent-hover: #6b94ff;
  --color-user-bg:      #1e2d4a;
  --color-assistant-bg: #1a1d27;
  --color-error:        #e05c5c;
  --color-success:      #4caf7d;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;
  --radius:    8px;
  --header-h:  56px;
  --footer-h:  120px;
}

html, body {
  height: 100%;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
}

/* --------------------------------------------------------- */
/* Header                                                     */
/* --------------------------------------------------------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.3px;
}

.tagline {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* --------------------------------------------------------- */
/* Model selector                                             */
/* --------------------------------------------------------- */
.model-selector-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.model-label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.model-select {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 5px 10px;
  font-size: 13px;
  font-family: var(--font-sans);
  cursor: pointer;
  outline: none;
  transition: border-color 0.15s;
}

.model-select:hover,
.model-select:focus {
  border-color: var(--color-accent);
}

.model-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --------------------------------------------------------- */
/* Encryption status dot                                      */
/* --------------------------------------------------------- */
.status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-text-muted);
  transition: background 0.3s;
}

.status-secure  { background: var(--color-success); }
.status-error   { background: var(--color-error); }

/* --------------------------------------------------------- */
/* Chat container                                             */
/* --------------------------------------------------------- */
.chat-container {
  position: fixed;
  top: var(--header-h);
  bottom: var(--footer-h);
  left: 0; right: 0;
  overflow-y: auto;
  padding: 24px 0;
  scroll-behavior: smooth;
}

/* --------------------------------------------------------- */
/* Messages                                                   */
/* --------------------------------------------------------- */
.message {
  max-width: 760px;
  margin: 0 auto 16px;
  padding: 0 24px;
}

.message-content {
  background: var(--color-assistant-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.message-content strong {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.message-body p {
  margin-bottom: 10px;
}

.message-body p:last-child {
  margin-bottom: 0;
}

.user-message .message-content {
  background: var(--color-user-bg);
  border-color: #2a3f6a;
}

.user-message .message-content strong {
  color: #8fb4ff;
}

.intro-message .message-content {
  border-color: var(--color-accent);
}

.security-note {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------- */
/* System messages                                            */
/* --------------------------------------------------------- */
.system-message {
  max-width: 760px;
  margin: 0 auto 12px;
  padding: 10px 24px;
  font-size: 13px;
  color: var(--color-text-muted);
  text-align: center;
}

.system-error {
  color: var(--color-error);
}

/* --------------------------------------------------------- */
/* Typing indicator                                           */
/* --------------------------------------------------------- */
.typing-indicator {
  display: flex;
  gap: 5px;
  padding: 4px 0;
}

.typing-indicator span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-text-muted);
  animation: typing-bounce 1.2s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
  0%, 80%, 100% { transform: scale(0.7); opacity: 0.4; }
  40%           { transform: scale(1.0); opacity: 1.0; }
}

/* --------------------------------------------------------- */
/* Input area                                                 */
/* --------------------------------------------------------- */
.input-area {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 14px 24px 10px;
}

.input-wrapper {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 12px;
  transition: border-color 0.15s;
}

.input-wrapper:focus-within {
  border-color: var(--color-accent);
}

.user-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  resize: none;
  min-height: 24px;
  max-height: 200px;
  overflow-y: auto;
}

.user-input::placeholder {
  color: var(--color-text-muted);
}

.user-input:disabled {
  opacity: 0.6;
}

.send-btn {
  background: var(--color-accent);
  border: none;
  border-radius: 6px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s, opacity 0.15s;
}

.send-btn svg {
  width: 16px;
  height: 16px;
  stroke: #fff;
}

.send-btn:hover:not(:disabled) {
  background: var(--color-accent-hover);
}

.send-btn:disabled,
.send-btn.loading {
  opacity: 0.5;
  cursor: not-allowed;
}

.disclaimer {
  max-width: 760px;
  margin: 6px auto 0;
  font-size: 11px;
  color: var(--color-text-muted);
  text-align: center;
}

/* --------------------------------------------------------- */
/* Scrollbar styling                                          */
/* --------------------------------------------------------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* --------------------------------------------------------- */
/* E2EE Test Button                                           */
/* --------------------------------------------------------- */
.e2ee-test-btn {
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background: transparent;
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background 0.15s, color 0.15s;
}
.e2ee-test-btn:hover {
  background: var(--color-accent);
  color: #fff;
}
.e2ee-test-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --------------------------------------------------------- */
/* E2EE Self-Test Modal Overlay                               */
/* --------------------------------------------------------- */
.test-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 24px;
}

.test-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px 32px;
  max-width: 720px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
}

.test-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}
.test-title.pass { color: #27ae60; }
.test-title.fail { color: #c0392b; }

.test-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-bottom: 20px;
}
.test-table tr {
  border-bottom: 1px solid var(--color-border);
}
.test-table tr:last-child {
  border-bottom: none;
}
.test-icon {
  width: 28px;
  font-weight: 700;
  padding: 10px 0;
  vertical-align: top;
}
.test-row-pass .test-icon { color: #27ae60; }
.test-row-fail .test-icon { color: #c0392b; }

.test-name {
  width: 200px;
  font-weight: 600;
  padding: 10px 12px 10px 0;
  vertical-align: top;
  color: var(--color-text);
}
.test-detail {
  color: var(--color-text-muted);
  padding: 10px 0;
  vertical-align: top;
  line-height: 1.5;
}

.test-close-btn {
  display: block;
  margin-left: auto;
  padding: 8px 24px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.test-close-btn:hover {
  opacity: 0.88;
}

/* --------------------------------------------------------- */
/* Last Transmission Inspector modal                          */
/* --------------------------------------------------------- */
.tx-empty {
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
  padding: 24px 0;
}

.tx-section {
  margin-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}

.tx-section:last-of-type {
  border-bottom: none;
}

.tx-heading {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 4px 0;
}

.tx-description {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.tx-value {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.72rem;
  background: #0d1117;
  color: #c9d1d9;
  border-radius: 6px;
  padding: 10px 12px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 120px;
  overflow-y: auto;
  margin: 0;
  border: 1px solid #30363d;
}

.tx-cipher { color: #79c0ff; }   /* blue  — encrypted data  */
.tx-plain  { color: #56d364; }   /* green — decrypted text  */
.tx-routing { color: #e3b341; }  /* amber — routing config  */