/* ============================================================
   MailingStack Stack Finder – Frontend Styles
   ============================================================ */

.msf-app {
  --msf-accent:   #2563EB;
  --msf-bg:       #0a0a0f;
  --msf-bg2:      rgba(255,255,255,0.04);
  --msf-border:   rgba(255,255,255,0.09);
  --msf-text:     #f0f0f8;
  --msf-muted:    #a0a0b8;
  --msf-cyan:     #00d4ff;
  --msf-purple:   #7b2fff;
  --msf-orange:   #ff6b35;
  --msf-radius:   16px;
  --msf-font:     'Courier New', monospace;

  background: var(--msf-bg);
  border-radius: 20px;
  padding: 0 0 24px;
  font-family: 'Georgia', 'Times New Roman', serif;
  overflow: hidden;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}

/* ── Header ── */
.msf-header {
  padding: 32px 24px 0;
  text-align: center;
}

.msf-eyebrow {
  display: inline-block;
  background: linear-gradient(90deg, var(--msf-cyan), var(--msf-purple), var(--msf-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-family: var(--msf-font);
  margin-bottom: 8px;
}

.msf-title {
  margin: 0;
  font-size: 26px;
  font-weight: 400;
  color: #f0f0f8;
  letter-spacing: -0.02em;
  line-height: 1.2;
  border: none;
  padding: 0;
}

.msf-divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--msf-cyan), var(--msf-purple));
  margin: 12px auto 0;
  border-radius: 2px;
}

/* ── Chat area ── */
.msf-chat {
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 200px;
}

/* ── Message row ── */
.msf-msg {
  display: flex;
  animation: msfFadeSlide 0.35s ease both;
}

.msf-msg--bot  { justify-content: flex-start; }
.msf-msg--user { justify-content: flex-end; }

/* ── Bot avatar ── */
.msf-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--msf-cyan), var(--msf-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  margin-right: 10px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── Message content ── */
.msf-msg-inner {
  max-width: 82%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msf-bubble {
  padding: 12px 16px;
  border-radius: 4px 18px 18px 18px;
  background: var(--msf-bg2);
  border: 1px solid var(--msf-border);
  color: var(--msf-text);
  font-size: 15px;
  line-height: 1.65;
  white-space: pre-line;
}

.msf-msg--user .msf-bubble {
  border-radius: 18px 18px 4px 18px;
  background: linear-gradient(135deg, var(--msf-purple), var(--msf-cyan));
  border: none;
}

/* ── Typing loader ── */
.msf-typing span {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--msf-muted);
  border-radius: 50%;
  margin: 0 2px;
  animation: msfBounce 1.2s infinite;
}
.msf-typing span:nth-child(2) { animation-delay: 0.2s; }
.msf-typing span:nth-child(3) { animation-delay: 0.4s; }

/* ── Option buttons ── */
.msf-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.msf-option {
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--msf-border);
  background: rgba(255,255,255,0.03);
  color: #c0c0d0;
  font-size: 14px;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
  font-family: var(--msf-font);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.msf-option::before {
  content: "→ ";
  color: var(--msf-muted);
}

.msf-option:hover:not(:disabled) {
  background: rgba(123,47,255,0.15);
  border-color: var(--msf-purple);
  color: #d0a0ff;
}

.msf-option:disabled {
  cursor: default;
}

.msf-option--selected {
  border-color: var(--msf-cyan) !important;
  background: rgba(0,212,255,0.12) !important;
  color: var(--msf-cyan) !important;
}

.msf-option--selected::before {
  content: "✓ ";
  color: var(--msf-cyan);
}

/* ══════════════════════════════════
   RECOMMENDATION CARD
══════════════════════════════════ */
.msf-result {
  margin-top: 8px;
  animation: msfFadeSlide 0.5s ease both;
}

.msf-result-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 20px;
  padding: 28px 24px;
  color: var(--msf-text);
}

.msf-result-eyebrow {
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--msf-cyan);
  font-family: var(--msf-font);
  margin-bottom: 4px;
}

.msf-result-title {
  font-size: 22px;
  font-weight: 400;
  margin: 0 0 22px;
  letter-spacing: -0.01em;
  color: #fff;
}

/* ── Stack visual ── */
.msf-stack-visual {
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 16px;
  font-family: var(--msf-font);
  font-size: 12px;
  margin-bottom: 24px;
}

.msf-stack-visual-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: #555;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.msf-stack-nodes {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
}

.msf-stack-node {
  flex-shrink: 0;
}

.msf-stack-node-lbl {
  font-size: 10px;
  color: #555;
  margin-bottom: 4px;
}

.msf-stack-node-val {
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  max-width: 140px;
  line-height: 1.3;
}

.msf-stack-node-val--crm    { background: rgba(123,47,255,0.15);  border: 1px solid rgba(123,47,255,0.3);  color: #a070ff; }
.msf-stack-node-val--auto   { background: rgba(0,212,255,0.12);   border: 1px solid rgba(0,212,255,0.3);   color: var(--msf-cyan); }
.msf-stack-node-val--cdp    { background: rgba(255,107,53,0.12);  border: 1px solid rgba(255,107,53,0.3);  color: var(--msf-orange); }

.msf-stack-arrow {
  color: #333;
  font-size: 18px;
  margin-top: 18px;
  flex-shrink: 0;
}

.msf-addons { display: flex; flex-direction: column; gap: 4px; }
.msf-addon-lbl { font-size: 10px; color: #555; margin-bottom: 4px; }
.msf-addon-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 12px;
  color: #a0a0c0;
}

/* ── Stack rows ── */
.msf-stack-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.msf-stack-row {
  display: flex;
  gap: 12px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  align-items: flex-start;
}

.msf-stack-row-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.msf-stack-row-label {
  font-size: 10px;
  color: #606070;
  font-family: var(--msf-font);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.msf-stack-row-value {
  font-size: 14px;
  color: #d0d0e8;
}

/* ── Reasons ── */
.msf-section-label {
  font-size: 11px;
  color: var(--msf-purple);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: var(--msf-font);
  margin-bottom: 12px;
}

.msf-reasons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.msf-reason {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: #c0c0d8;
  line-height: 1.55;
}

.msf-reason-bullet {
  color: var(--msf-cyan);
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Alternatives ── */
.msf-alts {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.msf-alt {
  padding: 10px 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 10px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  text-decoration: none;
  transition: border-color 0.2s;
}

.msf-alt:hover {
  border-color: rgba(0,212,255,0.3);
}

.msf-alt-num {
  color: var(--msf-orange);
  font-family: var(--msf-font);
  font-size: 13px;
  flex-shrink: 0;
}

.msf-alt-name {
  font-size: 14px;
  color: #e0e0f0;
  margin-bottom: 2px;
}

.msf-alt-desc {
  font-size: 13px;
  color: #808090;
}

/* ── Next Steps ── */
.msf-next-steps {
  background: rgba(0,212,255,0.05);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
}

.msf-next-steps-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.msf-next-step {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: #a0b8c8;
}

.msf-next-step-num {
  color: var(--msf-cyan);
  font-family: var(--msf-font);
  flex-shrink: 0;
}

/* ── CTA Button ── */
.msf-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  background: linear-gradient(135deg, var(--msf-purple), var(--msf-cyan));
  color: #fff !important;
  font-size: 15px;
  font-weight: 700;
  border-radius: 12px;
  text-decoration: none !important;
  margin-bottom: 16px;
  transition: opacity 0.2s, transform 0.15s;
  font-family: var(--msf-font);
  letter-spacing: 0.04em;
  border: none;
  cursor: pointer;
  width: 100%;
  justify-content: center;
}

.msf-cta-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  text-decoration: none !important;
  color: #fff !important;
}

/* ── Restart button ── */
.msf-restart-btn {
  padding: 10px 24px;
  background: transparent;
  border: 1px solid rgba(123,47,255,0.4);
  border-radius: 10px;
  color: var(--msf-purple);
  font-size: 14px;
  cursor: pointer;
  font-family: var(--msf-font);
  letter-spacing: 0.1em;
  transition: background 0.2s;
  width: 100%;
}

.msf-restart-btn:hover {
  background: rgba(123,47,255,0.1);
}

/* ── Affiliate disclaimer ── */
.msf-disclaimer {
  font-size: 11px;
  color: rgba(255,255,255,0.25);
  margin-top: 12px;
  line-height: 1.5;
  text-align: center;
  font-family: var(--msf-font);
}

/* ── Animations ── */
@keyframes msfFadeSlide {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes msfBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%           { transform: translateY(-6px); }
}

/* ── Scrollbar ── */
.msf-app ::-webkit-scrollbar       { width: 4px; }
.msf-app ::-webkit-scrollbar-track { background: transparent; }
.msf-app ::-webkit-scrollbar-thumb { background: rgba(123,47,255,0.3); border-radius: 2px; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .msf-app       { border-radius: 12px; }
  .msf-header    { padding: 24px 16px 0; }
  .msf-title     { font-size: 22px; }
  .msf-chat      { padding: 18px 12px; }
  .msf-result-card { padding: 20px 16px; }
  .msf-stack-nodes { flex-direction: column; }
  .msf-stack-arrow { display: none; }
}