/* ═══════════════════════════════════════════════════
   MFA THESIS ARCHITECT — style.css
   Seslow Creative Suite · Product #1
   Deep Dark Mode + Birth-Fire Orange (#ff4d00)
   ═══════════════════════════════════════════════════ */

:root {
  --mfa-bg: #0a0a0a;
  --mfa-bg-raised: #111111;
  --mfa-bg-glass: rgba(255, 255, 255, 0.04);
  --mfa-accent: #ff4d00;
  --mfa-accent-dim: rgba(255, 77, 0, 0.15);
  --mfa-accent-glow: rgba(255, 77, 0, 0.25);
  --mfa-text: #e8e8e8;
  --mfa-text-dim: #888888;
  --mfa-border: rgba(255, 255, 255, 0.08);
  --mfa-radius: 12px;
  --mfa-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

.mfa-body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--mfa-bg);
  color: var(--mfa-text);
  margin: 0;
  line-height: 1.6;
  min-height: 100vh;
}

.mfa-screen { display: none; }
.mfa-active { display: block !important; }
#mfa-gate.mfa-active { display: flex !important; }
.mfa-hidden { display: none !important; }
.mfa-accent { color: var(--mfa-accent); }

/* ── GATE SCREEN ── */
#mfa-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 30% 20%, rgba(255, 77, 0, 0.06) 0%, transparent 60%), var(--mfa-bg);
  padding: 24px;
}

.mfa-gate-inner { text-align: center; max-width: 440px; }
.mfa-gate-logo { width: 120px; height: auto; display: block; margin: 0 auto 24px; }
.mfa-gate-title { font-size: 3rem; font-weight: 700; margin-bottom: 16px; line-height: 1.15; }
.mfa-gate-sub { color: var(--mfa-text-dim); margin-bottom: 32px; font-size: 1rem; }
.mfa-gate-form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.mfa-gate-form input {
  padding: 14px 18px;
  border-radius: var(--mfa-radius);
  border: 1px solid var(--mfa-border);
  background: var(--mfa-bg-raised);
  color: var(--mfa-text);
  font-size: 0.95rem;
  width: 260px;
  outline: none;
  transition: border-color 0.2s;
}
.mfa-gate-form input:focus { border-color: var(--mfa-accent); }
.mfa-gate-credit { color: var(--mfa-text-dim); font-size: 0.8rem; margin-top: 28px; }
.mfa-gate-credit a { color: var(--mfa-accent); text-decoration: none; }

/* ── BUTTONS ── */
.mfa-btn-primary {
  background: var(--mfa-accent);
  color: white;
  padding: 14px 28px;
  border-radius: var(--mfa-radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s var(--mfa-ease);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.mfa-btn-primary:hover {
  background: #e64400;
  box-shadow: 0 8px 24px rgba(255, 77, 0, 0.3);
  transform: translateY(-1px);
}

.mfa-btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.mfa-btn-secondary {
  background: transparent;
  color: var(--mfa-text);
  padding: 14px 28px;
  border-radius: var(--mfa-radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s var(--mfa-ease);
  border: 1px solid var(--mfa-border);
  cursor: pointer;
  white-space: nowrap;
}

.mfa-btn-secondary:hover {
  border-color: var(--mfa-accent);
  color: var(--mfa-accent);
  background: var(--mfa-accent-dim);
}

.mfa-btn-full { width: 100%; }

/* ── TOP BAR ── */
#mfa-topbar {
  border-bottom: 1px solid var(--mfa-border);
  padding: 12px 24px;
  background: var(--mfa-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.mfa-topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.mfa-topbar-logo { width: 32px; height: 32px; border-radius: 50%; }
.mfa-topbar-title { font-weight: 600; font-size: 1rem; flex: 1; }
.mfa-topbar-tokens {
  background: var(--mfa-accent-dim);
  color: var(--mfa-accent);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* ── PROGRESS STEPPER ── */
#mfa-stepper {
  background: var(--mfa-bg-raised);
  border-bottom: 1px solid var(--mfa-border);
  padding: 16px 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.mfa-stepper-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
}

.mfa-step {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  color: var(--mfa-text-dim);
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all 0.25s var(--mfa-ease);
  white-space: nowrap;
  font-size: 0.85rem;
}

.mfa-step:hover { color: var(--mfa-text); background: var(--mfa-bg-glass); }

.mfa-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--mfa-text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: all 0.25s var(--mfa-ease);
}

.mfa-step-label { font-weight: 500; }

.mfa-step-line {
  flex: 1;
  height: 2px;
  background: var(--mfa-border);
  min-width: 16px;
  transition: background 0.3s;
}

.mfa-step-active .mfa-step-num {
  background: var(--mfa-accent);
  border-color: var(--mfa-accent);
  color: white;
}

.mfa-step-active { color: var(--mfa-text); }

.mfa-step-done .mfa-step-num {
  background: var(--mfa-accent-dim);
  border-color: var(--mfa-accent);
  color: var(--mfa-accent);
}

.mfa-step-done { color: var(--mfa-accent); }

.mfa-step-line-done { background: var(--mfa-accent); }

/* ── MAIN STUDIO ── */
#mfa-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

#mfa-module-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.mfa-mod-head-icon {
  font-size: 2rem;
  width: 56px;
  height: 56px;
  background: var(--mfa-accent-dim);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mfa-mod-head-text h1 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
}

.mfa-mod-head-text p {
  color: var(--mfa-text-dim);
  margin: 4px 0 0;
  font-size: 0.9rem;
}

/* ── WORKSPACE (input + tip side-by-side) ── */
.mfa-workspace {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: start;
}

.mfa-input-col { display: flex; flex-direction: column; gap: 16px; }

.mfa-input-col textarea {
  width: 100%;
  background: var(--mfa-bg-raised);
  border: 1px solid var(--mfa-border);
  color: var(--mfa-text);
  padding: 20px;
  border-radius: var(--mfa-radius);
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
}

.mfa-input-col textarea:focus { border-color: var(--mfa-accent); }

.mfa-input-col textarea::placeholder { color: var(--mfa-text-dim); }

/* ── ARCHITECT'S TIP PANEL ── */
.mfa-tip-panel {
  background: var(--mfa-bg-raised);
  border: 1px solid var(--mfa-accent-dim);
  border-left: 3px solid var(--mfa-accent);
  border-radius: var(--mfa-radius);
  padding: 20px;
  position: sticky;
  top: 120px;
}

.mfa-tip-header {
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mfa-accent);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.mfa-tip-header::before { content: '💡'; }

.mfa-tip-text {
  color: var(--mfa-text-dim);
  font-size: 0.88rem;
  line-height: 1.65;
  margin: 0;
}

/* ── OUTPUT VIEW ── */
#mfa-output-view {
  animation: mfa-fadeIn 0.35s var(--mfa-ease);
}

.mfa-output-content {
  background: var(--mfa-bg-raised);
  border: 1px solid var(--mfa-border);
  border-radius: var(--mfa-radius);
  padding: 32px;
  line-height: 1.8;
  font-size: 0.95rem;
  white-space: pre-wrap;
}

.mfa-output-content h3 {
  color: var(--mfa-accent);
  font-size: 1.1rem;
  margin: 24px 0 8px;
}

.mfa-output-content h3:first-child { margin-top: 0; }

.mfa-output-actions {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── FOOTER ── */
#mfa-footer {
  text-align: center;
  padding: 24px;
  border-top: 1px solid var(--mfa-border);
  color: var(--mfa-text-dim);
  font-size: 0.8rem;
}

#mfa-footer a { color: var(--mfa-accent); text-decoration: none; }

/* ── TOAST ── */
.mfa-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--mfa-bg-raised);
  border: 1px solid var(--mfa-border);
  color: var(--mfa-text);
  padding: 12px 24px;
  border-radius: var(--mfa-radius);
  font-size: 0.9rem;
  z-index: 200;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ── REFILL BUTTON ── */
.mfa-topbar-refill {
  background: transparent;
  border: 1px solid var(--mfa-accent);
  color: var(--mfa-accent);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--mfa-ease);
  white-space: nowrap;
}

.mfa-topbar-refill:hover {
  background: var(--mfa-accent);
  color: white;
}

/* ── REFILL PLANS ── */
.mfa-refill-plans {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mfa-plan-card {
  background: var(--mfa-bg-raised);
  border: 1px solid var(--mfa-border);
  border-radius: var(--mfa-radius);
  padding: 24px 16px;
  text-align: center;
  position: relative;
  transition: border-color 0.2s;
}

.mfa-plan-card:hover { border-color: var(--mfa-accent); }

.mfa-plan-featured {
  border-color: var(--mfa-accent);
  box-shadow: 0 0 20px rgba(255, 77, 0, 0.1);
}

.mfa-plan-badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--mfa-accent);
  color: white;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mfa-plan-tokens {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--mfa-accent);
  line-height: 1;
  margin-bottom: 4px;
}

.mfa-plan-label {
  color: var(--mfa-text-dim);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.mfa-plan-price {
  color: var(--mfa-accent);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.mfa-plan-btn { padding: 10px 16px !important; font-size: 0.85rem !important; }

/* ── EXPORT BAR ── */
#mfa-export-bar {
  text-align: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--mfa-border);
}

.mfa-btn-export {
  padding: 16px 40px;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

/* ── EXPORT MODAL ── */
.mfa-modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.mfa-modal.mfa-hidden { display: none !important; }

.mfa-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
}

.mfa-modal-content {
  position: relative;
  background: var(--mfa-bg);
  border: 1px solid var(--mfa-border);
  border-radius: var(--mfa-radius);
  max-width: 720px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
}

.mfa-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--mfa-border);
}

.mfa-modal-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  color: var(--mfa-accent);
}

.mfa-modal-close-btn {
  background: none;
  border: none;
  color: var(--mfa-text-dim);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.2s;
}

.mfa-modal-close-btn:hover {
  color: var(--mfa-text);
  background: var(--mfa-bg-glass);
}

.mfa-modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
  font-size: 0.92rem;
  line-height: 1.8;
  white-space: pre-wrap;
}

.mfa-modal-body h3 {
  color: var(--mfa-accent);
  font-size: 1.05rem;
  margin: 24px 0 8px;
  border-bottom: 1px solid var(--mfa-border);
  padding-bottom: 6px;
}

.mfa-modal-body h3:first-child { margin-top: 0; }

.mfa-modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--mfa-border);
}

.mfa-export-brand {
  text-align: center;
  color: var(--mfa-text-dim);
  font-size: 0.78rem;
  margin: 0 0 12px;
}

.mfa-export-brand a {
  color: var(--mfa-accent);
  text-decoration: none;
}

.mfa-modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* ── ANIMATIONS ── */
@keyframes mfa-fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── IFRAME EMBED OPTIMIZATION (600–800px blog containers) ── */
@media (max-width: 840px) {
  #mfa-main {
    max-width: 100%;
    padding: 20px 16px 40px;
  }

  .mfa-workspace {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .mfa-tip-panel {
    position: static;
    order: -1;
    padding: 14px;
  }

  .mfa-tip-text { font-size: 0.82rem; }

  #mfa-module-header { margin-bottom: 16px; gap: 12px; }

  .mfa-mod-head-icon { width: 44px; height: 44px; font-size: 1.5rem; border-radius: 10px; }

  .mfa-mod-head-text h1 { font-size: 1.3rem; }

  .mfa-input-col textarea { rows: 6; padding: 14px; font-size: 0.9rem; }

  .mfa-btn-primary, .mfa-btn-secondary { padding: 12px 20px; font-size: 0.9rem; }

  .mfa-output-content { padding: 20px; font-size: 0.9rem; }

  .mfa-output-actions { gap: 10px; }

  #mfa-export-bar { margin-top: 20px; padding-top: 16px; }

  .mfa-btn-export { padding: 12px 28px; font-size: 0.9rem; }

  .mfa-stepper-inner { max-width: 100%; }

  #mfa-stepper { padding: 12px 16px; }

  .mfa-step { padding: 6px 8px; font-size: 0.8rem; gap: 6px; }

  .mfa-step-num { width: 24px; height: 24px; font-size: 0.7rem; }

  .mfa-topbar-inner { max-width: 100%; }

  #mfa-topbar { padding: 10px 16px; }

  .mfa-topbar-title { font-size: 0.9rem; }

  .mfa-topbar-tokens { font-size: 0.75rem; padding: 5px 10px; }

  #mfa-footer { padding: 16px; font-size: 0.75rem; }

  .mfa-modal-content { max-width: 95%; max-height: 90vh; }
  .mfa-modal-body { padding: 16px; font-size: 0.88rem; }
  .mfa-modal-header { padding: 14px 16px; }
  .mfa-modal-footer { padding: 12px 16px; }
}

/* ── GATE SCREEN — compact for embed ── */
@media (max-width: 840px) {
  #mfa-gate { padding: 16px; min-height: auto; }

  .mfa-gate-logo { width: 80px; margin-bottom: 16px; }

  .mfa-gate-title { font-size: 2rem; margin-bottom: 10px; }

  .mfa-gate-sub { font-size: 0.88rem; margin-bottom: 20px; }

  .mfa-gate-form { flex-direction: column; align-items: center; gap: 10px; }

  .mfa-gate-form input { width: 100%; max-width: 320px; padding: 12px 14px; }

  .mfa-gate-credit { margin-top: 16px; }
}

/* ── SMALL MOBILE ── */
@media (max-width: 520px) {
  .mfa-step-label { display: none; }

  .mfa-stepper-inner { justify-content: center; }

  .mfa-gate-title { font-size: 1.7rem; }

  .mfa-output-actions { flex-direction: column; }
  .mfa-output-actions button { width: 100%; }

  .mfa-modal-actions { flex-direction: column; }
  .mfa-modal-actions button { width: 100%; }
}