/* ========================================
   VOCES.AI — Design System
   Premium dark mode with glassmorphism
   ======================================== */

:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a2e;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --surface-elevated: rgba(255, 255, 255, 0.12);
  --glass: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-border-strong: rgba(255, 255, 255, 0.2);

  --text-primary: #e8e8ed;
  --text-secondary: #9898a6;
  --text-muted: #5a5a6e;

  --accent: #7c5cfc;
  --accent-hover: #9178ff;
  --accent-glow: rgba(124, 92, 252, 0.25);
  --accent-soft: rgba(124, 92, 252, 0.1);

  --success: #2dd4a8;
  --warning: #f5a623;
  --danger: #f45b69;
  --danger-hover: #ff6b7a;
  --danger-dark: #800000;
  --danger-dark-hover: #990000;

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Transitions */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Reset & Base
   ======================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ========================================
   Navigation
   ======================================== */

#main-nav,
#interview-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
}

#interview-nav {
  justify-content: flex-start;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo {
  font-size: 1.5rem;
}

.nav-title {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 0.5rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--surface-hover);
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-soft);
}

/* ========================================
   Main Layout
   ======================================== */

#app {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
}

.view {
  animation: fadeIn 0.3s ease;
}

.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.view-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.view-total {
  margin: 0;
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   Cards & Glass
   ======================================== */

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
}

.card.glass {
  background: var(--glass);
  backdrop-filter: blur(16px);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.config-card {
  cursor: default;
}

.config-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.config-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}

.config-card p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.config-card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.toggle-switch {
  position: relative;
  width: 44px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--bg-primary);
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  transition: background var(--transition), border-color var(--transition);
}

.toggle-knob {
  position: relative;
  width: 18px;
  height: 18px;
  margin-left: 3px;
  border-radius: 999px;
  background: var(--danger);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition), background var(--transition);
}

.toggle-switch.is-on {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.toggle-switch.is-on .toggle-knob {
  transform: translateX(16px);
  background: var(--success);
}

.config-card-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.config-card-actions-left {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}


/* ========================================
   Forms
   ======================================== */

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

.form-group.required label::after {
  content: " *";
  color: var(--accent);
}

input[type="text"],
input[type="email"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.875rem;
  transition: var(--transition);
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea {
  resize: vertical;
  min-height: 60px;
}

select {
  cursor: pointer;
}

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover {
  background: var(--danger-hover);
}

#btn-end-interview.btn-danger {
  background: var(--danger-dark);
}

#btn-end-interview.btn-danger:hover {
  background: var(--danger-dark-hover);
}

/** Pause and end buttons: right-aligned in chat-header-top, vertically centered. */
.header-action-buttons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

/** Pause interview button: solid PAUSED color background, white icon (like end button). */
#btn-pause-interview {
  background: #b45309;
  color: white;
  border: none;
}

#btn-pause-interview:hover:not(:disabled) {
  background: #c96b0d;
  color: white;
}

/** Pulse animation on the inline resume button in the paused banner (visible when the interview is paused). */
.interview-paused .btn-resume-banner {
  animation: pulse 1.5s infinite;
}

/** Generic pulse utility for buttons (e.g. Send when there is text). */
.btn-pulse {
  animation: pulse 1.5s infinite;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}

.btn-ghost:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

.btn-icon {
  padding: 0.625rem;
  border-radius: 50%;
  width: 40px;
  height: 40px;
}

.btn-icon.audio-degraded {
  position: relative;
  border-color: rgba(245, 166, 35, 0.7);
  color: var(--warning);
  box-shadow: 0 0 0 1px rgba(245, 166, 35, 0.35);
}

.btn-icon .icon-speaker-warn {
  position: absolute;
  bottom: 2px;
  right: 2px;
  color: var(--warning);
  filter: drop-shadow(0 0 1px rgba(0, 0, 0, 0.6));
  pointer-events: none;
}

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

/* ========================================
   Chat Interface
   ======================================== */

.chat-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 10rem);
  height: calc(100dvh - 10rem);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: var(--bg-secondary);
}

.chat-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--glass-border);
  background: var(--glass);
  backdrop-filter: blur(16px);
}

/** Title and pause/finish buttons on one row: title left, buttons right, vertically centered. */
.chat-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
}

.chat-header-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  min-width: 0;
}

.chat-title {
  font-weight: 600;
  font-size: 0.9375rem;
}

.interview-state-badge {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--warning);
  background: rgba(245, 166, 35, 0.15);
  border-radius: var(--radius-sm);
}

.resume-url-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.resume-url-inline .resume-link {
  color: var(--accent);
  text-decoration: underline;
}

.resume-url-inline .resume-link:hover {
  text-decoration-thickness: 2px;
}

.chat-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 0.75rem;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  scroll-behavior: smooth;
}

/* Audio degraded banner: shown when TTS/STT fall back to browser-only mode. */
.audio-degraded-banner {
  margin: 0.25rem 1.5rem 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  background: rgba(245, 166, 35, 0.12);
  border: 1px solid rgba(245, 166, 35, 0.45);
  color: var(--text-secondary);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.audio-degraded-banner.hidden {
  display: none !important;
}

.audio-degraded-banner strong {
  color: var(--warning);
}

.chat-messages::-webkit-scrollbar {
  width: 4px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 4px;
}

.message {
  max-width: 80%;
  padding: 0.875rem 1.125rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  line-height: 1.65;
  animation: messageIn 0.3s ease;
}

.message-assistant {
  align-self: flex-start;
  background: var(--surface-elevated);
  border: 1px solid var(--glass-border-strong);
  border-bottom-left-radius: 4px;
  color: var(--text-primary);
}

.message-user {
  align-self: flex-end;
  background: var(--accent);
  color: white;
  border-bottom-right-radius: 4px;
}

.message-pending {
  opacity: 0.8;
  border: 1px dashed var(--glass-border);
}

/* Status line (in bottom bar): Reproduciendo / Escuchando / Esperando respuesta */
.interview-status {
  align-self: flex-start;
  font-size: 0.8125rem;
  font-weight: 400;
  font-style: italic;
  color: #b8a8ff;
  margin-top: 0.25rem;
  padding-left: 0;
  min-height: 1.25rem;
}

.interview-status.hidden {
  display: none;
}

.interview-status:not(.hidden) {
  animation: interview-status-blink 1s ease-in-out infinite;
}

@keyframes interview-status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.message-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.5rem;
  gap: 0.5rem;
  font-size: 0.75rem;
}

.btn-link {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  font-size: inherit;
  font-family: inherit;
}

.btn-link:hover {
  color: white;
}

.message-edit-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  min-width: 250px;
}

.message-edit-form textarea {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  min-height: 60px;
}

.message-edit-form .form-actions {
  margin-top: 0;
  justify-content: flex-end;
}

/** Rich banner when interview has ended (same layout as paused banner, red scheme: light red bg, dark red text). */
.interview-ended-banner {
  margin: 0.75rem 0 0;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(200, 70, 70, 0.2);
  border: 1px solid rgba(180, 50, 50, 0.45);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.interview-ended-main {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #fff;
}

.interview-ended-thanks {
  margin: 0.25rem 0 0;
  color: var(--text-secondary);
}

/** Simple closing line (e.g. in admin session modal). */
.interview-ended-line {
  color: var(--danger-dark);
  font-size: 0.9rem;
  margin: 0.75rem 0 0;
  padding: 0;
  text-align: left;
}

/** Status line when interview is paused (same color as PAUSADO badge). */
.interview-status-line-paused {
  color: #b45309;
  font-size: 0.9rem;
  margin: 0.75rem 0 0;
  padding: 0;
  text-align: left;
}

/** Rich banner shown in the participant chat when the interview is paused. */
.interview-paused-banner {
  margin: 0.75rem 0 0;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(245, 166, 35, 0.15);
  border: 1px solid rgba(245, 166, 35, 0.4);
  color: #b45309;
  font-size: 0.9rem;
}

.interview-paused-main {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.interview-paused-resume-row,
.interview-paused-link-row {
  margin-top: 0.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.btn-resume-banner {
  position: relative;
  background: var(--success);
  color: #0b1612;
}

.btn-resume-banner:hover {
  background: #22c29a; /* Slightly darker green variation */
}

.interview-paused-link-row .btn-copy {
  flex-shrink: 0;
}

.interview-paused-spacer {
  height: 0.75rem;
}

.interview-paused-reminder {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/** Rich banner when interview is resumed (same layout as paused banner, green scheme). */
.interview-resumed-banner {
  margin: 0.75rem 0 0;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(34, 194, 154, 0.15);
  border: 1px solid rgba(34, 194, 154, 0.4);
  color: var(--success);
  font-size: 0.9rem;
}

.interview-resumed-main {
  font-weight: 600;
  margin: 0;
}

/** Status line when interview is resumed (same color as ACTIVA badge). */
.interview-status-line-active {
  color: var(--success);
  font-size: 0.9rem;
  margin: 0.75rem 0 0;
  padding: 0;
  text-align: left;
}

@keyframes messageIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.97);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }



}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Config form: voice speed row */
.speech-rate-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.speech-rate-row input[type="range"] {
  width: 8rem;
  accent-color: var(--accent);
}

/* Input Mode Switch */
.input-controls-container {
  background: var(--bg-tertiary);
  padding: 0.5rem 1.5rem 0;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: center;
}

.input-mode-switch {
  display: flex;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border-strong);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.mode-option {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 500;
  transition: var(--transition);
}

.mode-option:hover:not(.active):not(:disabled) {
  color: var(--text-primary);
  background: var(--surface-hover);
}

.mode-option.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  box-shadow: 0 0 0 1px rgba(124, 92, 252, 0.35);
  border: 1px solid rgba(124, 92, 252, 0.4);
}

.mode-option:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.chat-input-area {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--glass-border-strong);
  background: var(--bg-tertiary);
}

/** Left column: status line + toolbar, same height as the textarea. */
.chat-input-left {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.25rem;
  flex-shrink: 0;
  align-self: stretch;
}

/** Wrapper for blinking status line (Reproduciendo / Escuchando / etc.) above the toolbar. */
.interview-status-bar {
  min-height: 1rem;
  display: flex;
  align-items: center;
}

.interview-status-bar .interview-status {
  font-size: 0.6875rem;
  margin-top: 0;
  min-height: 1rem;
}

.chat-input-row {
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
  flex: 1;
  min-width: 0;
}

.chat-input-row #btn-send {
  align-self: flex-end;
}

.chat-input-toolbar {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-shrink: 0;
}

.chat-input-toolbar .btn-icon {
  color: var(--text-secondary);
}

.chat-input-toolbar .btn-icon:hover {
  color: var(--text-primary);
}

.chat-input-popover-anchor {
  position: relative;
}

.audio-popover {
  position: absolute;
  bottom: 100%;
  left: 0;
  margin-bottom: 0.5rem;
  min-width: 220px;
  padding: 0.75rem 1rem;
  background: var(--surface-elevated);
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  z-index: 100;
}

.audio-popover.hidden {
  display: none;
}

.audio-popover-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.audio-popover-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.audio-popover-row label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.audio-popover-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.audio-popover-controls input[type="range"] {
  flex: 1;
  width: 0;
  min-width: 6rem;
  accent-color: var(--accent);
}

.audio-popover-controls span {
  font-size: 0.8rem;
  color: var(--text-secondary);
  min-width: 2.5rem;
}

.btn-block {
  width: 100%;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(124, 92, 252, 0.7);
  }

  70% {
    box-shadow: 0 0 0 16px rgba(124, 92, 252, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(124, 92, 252, 0);
  }
}

.chat-input-area textarea {
  flex: 1;
  min-height: 3.5rem;
  background: var(--surface-elevated);
  border: 1px solid var(--glass-border-strong);
  color: var(--text-primary);
  resize: none;
}

.chat-input-area textarea::placeholder {
  color: var(--text-secondary);
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.75rem 1.5rem;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: typingBounce 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) {
  animation-delay: 0s;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.16s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.32s;
}

/* Interview toast (non-blocking warnings/reminders) */
.interview-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--surface-elevated);
  border: 1px solid var(--glass-border-strong);
  color: var(--text-primary);
  font-size: 0.9rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  max-width: 90vw;
}

@keyframes typingBounce {

  0%,
  80%,
  100% {
    transform: scale(0.6);
    opacity: 0.4;
  }

  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ========================================
   Empty States
   ======================================== */

.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* ========================================
   Modal
   ======================================== */

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 700px;
  max-height: 80vh;
  overflow-y: auto;
  animation: modalIn 0.3s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.modal-header h2 {
  font-size: 1.125rem;
  font-weight: 600;
}

.modal-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-messages {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modal-messages .message-timestamp {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.6875rem;
  opacity: 0.75;
}

.modal-messages .interview-ended-line .message-timestamp {
  margin-top: 0.25rem;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ========================================
   Session Cards
   ======================================== */

.status-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-active {
  background: rgba(45, 212, 168, 0.15);
  color: var(--success);
}

.status-paused {
  background: rgba(251, 191, 36, 0.15);
  color: #b45309;
}

.status-completed {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

/** Resume session link in list: same green as ACTIVA badge. */
.btn-resume-session {
  background: transparent;
  color: var(--success);
}
.btn-resume-session:hover {
  background: rgba(45, 212, 168, 0.15);
  color: var(--success);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 640px) {
  #main-nav {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
  }

  .nav-links {
    width: 100%;
    justify-content: center;
  }

  #app {
    padding: 1rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .message {
    max-width: 90%;
  }

  input[type="text"],
  input[type="email"],
  input[type="number"],
  textarea,
  select {
    font-size: 1rem; /* prevents iOS auto-zoom (requires >= 16px) */
  }

  .chat-container {
    height: calc(100vh - 12rem);
    height: calc(100dvh - 12rem);
  }

  .view-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  /* H3: two-row chat input — textarea full width on top, toolbar + send on bottom */
  .chat-input-row {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .chat-input-area textarea {
    order: 1;
    width: 100%;
    flex: none;
    min-height: 3rem;
  }

  .chat-input-left {
    order: 2;
    flex-direction: row;
    align-items: center;
    flex: 1;
  }

  .chat-input-row #btn-send {
    order: 2;
    align-self: center;
    flex-shrink: 0;
  }

  /* H3: reduce generous desktop padding on welcome card */
  .interview-welcome-card {
    padding: 1.75rem 1.25rem;
  }

  /* H4: prevent audio popover from overflowing viewport right edge */
  .audio-popover {
    left: auto;
    right: 0;
    max-width: calc(100vw - 2rem);
  }
}

/* ========================================
   Interview Page (Participants)
   ======================================== */

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

.interview-welcome-card {
  max-width: 560px;
  width: 100%;
  text-align: center;
  padding: 3rem 2.5rem;
}

.interview-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.interview-welcome-text {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  text-align: left;
  white-space: pre-line;
}

.interview-welcome-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}

.interview-welcome-actions .btn:first-child {
  margin-right: auto;
}

#btn-audio-settings {
  background: var(--surface-elevated);
}

#btn-audio-settings:hover:not(:disabled) {
  background: var(--surface-hover);
}

.audio-settings-body {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.audio-settings-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.audio-settings-row label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

.audio-settings-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.audio-settings-controls select {
  flex: 1;
  min-width: 0;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: #fff;
}

.audio-settings-controls select option {
  background: var(--bg-primary);
  color: #fff;
}

.audio-settings-status {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  min-height: 1.25rem;
}

.audio-level-meter {
  position: relative;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.audio-level-fill {
  position: absolute;
  inset: 0;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-soft), var(--accent));
  transition: width 80ms linear;
}

.interview-page .chat-container {
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  height: calc(100vh - 4rem);
  height: calc(100dvh - 4rem);
}