/* ===== MREnigma — ENIGMA / Cyber Steampunk ===== */
:root {
  --bg-dark: #0d0a08;
  --bg-panel: #1a1512;
  --bg-input: #0f0c0a;
  --brass: #c9a227;
  --brass-light: #e8c547;
  --brass-dark: #8b6914;
  --copper: #b87333;
  --steel: #4a4a4a;
  --text: #e8e0d4;
  --text-dim: #9a8f7f;
  --accent: #2ea;
  --danger: #c44;
  --radius: 50px;
  --radius-sm: 24px;
  --shadow: 0 4px 20px rgba(0,0,0,0.5);
  --font-display: 'Orbitron', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
}

.app {
  width: 1200px;
  height: 900px;
  margin: 0 auto;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(201, 162, 39, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #15100c 0%, var(--bg-dark) 100%);
  border: 2px solid var(--brass-dark);
  box-shadow: inset 0 0 80px rgba(0,0,0,0.4), var(--shadow);
  display: grid;
  grid-template-rows: auto 1fr;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "header header"
    "main   sidebar";
  position: relative;
}

/* ----- Header ----- */
.header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 2px solid var(--brass-dark);
  background: linear-gradient(180deg, rgba(139, 105, 20, 0.15) 0%, transparent 100%);
}

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

.logo-icon {
  font-size: 1.4rem;
  color: var(--brass);
  filter: drop-shadow(0 0 6px rgba(201, 162, 39, 0.5));
}

.logo h1 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--brass-light);
  margin: 0;
  text-shadow: 0 0 12px rgba(201, 162, 39, 0.4);
}

.logo-sub {
  font-size: 0.85rem;
  color: var(--text-dim);
  letter-spacing: 0.15em;
  margin-left: 8px;
}

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

.rotor-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.rotor {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--brass-dark), var(--brass));
  border: 2px solid var(--brass-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--bg-dark);
  box-shadow: inset 0 2px 4px rgba(255,255,255,0.2), 0 2px 6px rgba(0,0,0,0.4);
}

/* ----- Main ----- */
.main {
  grid-area: main;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 24px;
  overflow: hidden;
}

.panel {
  background: var(--bg-panel);
  border: 2px solid var(--brass-dark);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  box-shadow: inset 0 0 30px rgba(0,0,0,0.3), 0 4px 12px rgba(0,0,0,0.3);
}

.panel h2 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--brass);
  margin: 0 0 12px 0;
  text-transform: uppercase;
}

.cipher-text {
  flex: 1;
  min-height: 120px;
  background: var(--bg-input);
  border: 2px solid var(--steel);
  border-radius: 8px;
  padding: 14px 18px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  resize: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.cipher-text:focus {
  outline: none;
  border-color: var(--brass);
  box-shadow: 0 0 12px rgba(201, 162, 39, 0.2);
}

.cipher-text::placeholder {
  color: var(--text-dim);
  opacity: 0.8;
}

.button-row {
  display: flex;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}

/* ----- Round buttons ----- */
.btn {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
}

.btn:active {
  transform: scale(0.96);
}

.btn-round {
  border-radius: var(--radius);
  padding: 12px 24px;
  min-width: 100px;
}

.btn-round.btn-small {
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  min-width: auto;
  font-size: 1.1rem;
}

.btn-brass {
  background: linear-gradient(180deg, var(--brass-light) 0%, var(--brass) 50%, var(--brass-dark) 100%);
  color: var(--bg-dark);
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.3), 0 4px 12px rgba(0,0,0,0.4);
}

.btn-brass:hover {
  filter: brightness(1.1);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.35), 0 6px 16px rgba(201, 162, 39, 0.3);
}

.btn-dark {
  background: linear-gradient(180deg, var(--steel) 0%, #3a3a3a 100%);
  color: var(--text);
  border: 1px solid #555;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 4px 10px rgba(0,0,0,0.3);
}

.btn-dark:hover {
  filter: brightness(1.15);
  border-color: var(--brass-dark);
}

/* ----- Sidebar ----- */
.sidebar {
  grid-area: sidebar;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 24px 16px;
  border-left: 2px solid var(--brass-dark);
  background: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.2) 100%);
}

.vault-preview {
  text-align: center;
  padding: 12px 20px;
  background: var(--bg-panel);
  border: 2px solid var(--brass-dark);
  border-radius: 12px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.vault-label {
  display: block;
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  color: var(--brass);
  margin-bottom: 4px;
}

.vault-count {
  font-weight: 600;
  color: var(--brass-light);
  font-size: 1.2rem;
}

/* ----- Modal ----- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s;
}

.modal[aria-hidden="false"] {
  pointer-events: auto;
  opacity: 1;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.75);
  cursor: pointer;
}

.modal-box {
  position: relative;
  width: 90%;
  max-width: 420px;
  background: var(--bg-panel);
  border: 3px solid var(--brass);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 0 40px rgba(201, 162, 39, 0.2), 0 20px 60px rgba(0,0,0,0.5);
}

.modal-box-wide {
  max-width: 520px;
}

.modal-box h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  color: var(--brass-light);
  margin: 0 0 16px 0;
}

.modal-hint {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin: 0 0 14px 0;
}

.modal-box label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.modal-input {
  width: 100%;
  padding: 12px 16px;
  margin-bottom: 18px;
  background: var(--bg-input);
  border: 2px solid var(--steel);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1rem;
}

.modal-input:focus {
  outline: none;
  border-color: var(--brass);
}

.rotor-inputs {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.rotor-inputs label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.rotor-input {
  width: 44px;
  height: 44px;
  text-align: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  background: var(--bg-input);
  border: 2px solid var(--brass);
  border-radius: 50%;
  color: var(--brass-light);
  text-transform: uppercase;
}

.rotor-input:focus {
  outline: none;
  box-shadow: 0 0 12px rgba(201, 162, 39, 0.3);
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 8px;
}

/* ----- Vault list ----- */
.vault-list {
  list-style: none;
  margin: 0 0 20px 0;
  padding: 0;
  max-height: 320px;
  overflow-y: auto;
}

.vault-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  margin-bottom: 8px;
  background: var(--bg-input);
  border: 1px solid var(--steel);
  border-radius: 8px;
  font-size: 0.9rem;
}

.vault-list li:hover {
  border-color: var(--brass-dark);
}

.vault-list .item-name {
  flex: 1;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.vault-list .item-actions {
  display: flex;
  gap: 8px;
}

.vault-list .btn-icon {
  padding: 8px 12px;
  min-width: auto;
  font-size: 0.8rem;
}

/* ----- Toast ----- */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  padding: 14px 24px;
  background: var(--bg-panel);
  border: 2px solid var(--brass);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  box-shadow: 0 6px 24px rgba(0,0,0,0.4);
  animation: toastIn 0.3s ease-out;
}

.toast.toast-success { border-color: var(--accent); }
.toast.toast-error { border-color: var(--danger); }

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

/* ----- Scrollbar ----- */
.vault-list::-webkit-scrollbar {
  width: 8px;
}

.vault-list::-webkit-scrollbar-track {
  background: var(--bg-input);
  border-radius: 4px;
}

.vault-list::-webkit-scrollbar-thumb {
  background: var(--brass-dark);
  border-radius: 4px;
}

.vault-list::-webkit-scrollbar-thumb:hover {
  background: var(--brass);
}