/* ============================================================
   feedback-triage.css — Produktfeedback-Triage case study
   Uses design tokens from ../../css/theme.css
   ============================================================ */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Header ── */
.ft-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.ft-header-left  { display: flex; align-items: center; gap: 1rem; }
.ft-header-right { display: flex; align-items: center; gap: 1rem; }

.ft-back-link {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition);
}
.ft-back-link:hover { opacity: 0.75; }

.ft-header-divider { color: var(--border); }
.ft-header-title   { font-size: 0.9rem; color: var(--muted); }

.ft-badge {
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* ── Language Toggle ── */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.2rem;
}
.lang-btn {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  border-radius: 5px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  font-family: var(--font-body);
  letter-spacing: 0.05em;
}
.lang-btn.active { background: var(--accent); color: #061318; }
.lang-btn:hover:not(.active) { color: var(--text); }

/* ── Main container ── */
.ft-main {
  width: 100%;
  max-width: 940px;
  margin: 0 auto;
  padding: 0 1.5rem;
  flex: 1;
}

/* ── Shared labels ── */
.ft-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

/* ── Hero ── */
.ft-hero {
  padding: 3.5rem 0 3rem;
  border-bottom: 1px solid var(--border);
}
.ft-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 5.5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 1rem;
  overflow-wrap: break-word;
}
.ft-hero-lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 62ch;
  line-height: 1.7;
}
.ft-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}
.ft-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  letter-spacing: 0.02em;
}
.ft-pill-live { color: var(--accent); border-color: var(--border2); }
.ft-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: ft-pulse 2s infinite;
}
@keyframes ft-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(20,184,166,0.35); }
  70%  { box-shadow: 0 0 0 8px rgba(20,184,166,0); }
  100% { box-shadow: 0 0 0 0 rgba(20,184,166,0); }
}
.ft-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Hero screenshot — the proof, above the fold */
.ft-hero-shot {
  margin-top: 2.75rem;
  border: 1px solid var(--border2);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg2);
  box-shadow: 0 18px 50px rgba(0,0,0,0.45);
}
.ft-hero-shot img {
  display: block;
  width: 100%;
  height: auto;
}
.ft-hero-shot figcaption {
  padding: 0.7rem 1rem;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

/* ── Buttons ── */
.ft-btn {
  display: inline-block;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius-sm);
  border: none;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  background: var(--accent);
  color: #061318;
  transition: background var(--transition), transform var(--transition);
}
.ft-btn:hover:not(:disabled) { background: #1dcfbc; transform: translateY(-1px); }
.ft-btn:disabled { background: var(--surface2); color: var(--faint); cursor: not-allowed; transform: none; }
.ft-btn-full { width: 100%; }
.ft-btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border2);
}
.ft-btn-ghost:hover { background: var(--accent-glow); transform: translateY(-1px); }

/* ── Sections ── */
.ft-section { padding: 3rem 0; border-bottom: 1px solid var(--border); }
.ft-section:last-of-type { border-bottom: none; }

.ft-section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.ft-section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}
.ft-prose {
  font-size: 0.98rem;
  color: var(--muted);
  max-width: 65ch;
  line-height: 1.75;
  margin-bottom: 1rem;
}
.ft-prose:last-child { margin-bottom: 0; }

/* ============================================================
   LIVE DEMO
   ============================================================ */
.ft-demo[hidden] { display: none; }

.ft-demo-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
}

.ft-demo-input,
.ft-demo-output {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.ft-demo-output { min-height: 340px; display: flex; flex-direction: column; }

.ft-field-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.45rem;
}

.ft-select,
.ft-textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--text);
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.8rem;
  margin-bottom: 1.15rem;
  transition: border-color var(--transition);
}
.ft-select:focus,
.ft-textarea:focus { outline: none; border-color: var(--accent); }
.ft-textarea { resize: vertical; line-height: 1.6; margin-bottom: 0.35rem; }
.ft-select option { background: var(--surface); color: var(--text); }

.ft-charcount {
  font-size: 0.72rem;
  color: var(--faint);
  text-align: right;
  margin-bottom: 1rem;
}

.ft-demo-examples {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}
.ft-examples-label { font-size: 0.75rem; color: var(--faint); margin-right: 0.2rem; }
.ft-chip-btn {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--muted);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.ft-chip-btn:hover { color: var(--accent); border-color: var(--border2); }

/* Output states */
.ft-demo-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.6rem;
}
.ft-demo-state[hidden] { display: none; }

.ft-demo-empty-icon { font-size: 2rem; color: var(--faint); }
.ft-demo-empty-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.ft-demo-empty-sub { font-size: 0.85rem; color: var(--muted); max-width: 30ch; line-height: 1.6; }
.ft-demo-error-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: #f87171;
}
.ft-demo-loading-text { font-size: 0.88rem; color: var(--muted); }

.ft-spinner {
  width: 34px; height: 34px;
  border: 3px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: ft-spin 0.8s linear infinite;
}
@keyframes ft-spin { to { transform: rotate(360deg); } }

/* Result */
.ft-demo-result[hidden] { display: none; }
.ft-demo-result { display: flex; flex-direction: column; gap: 0.1rem; }

.ft-result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
}
.ft-result-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.ft-result-value {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  text-align: right;
}
.ft-result-value.is-high {
  color: #fca5a5;
  background: rgba(248,113,113,0.12);
  border: 1px solid rgba(248,113,113,0.35);
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  font-size: 0.85rem;
}
.ft-result-value.is-low {
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border2);
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  font-size: 0.85rem;
}
.ft-result-summary { padding: 0.9rem 0 0.3rem; }
.ft-result-summary p {
  margin-top: 0.4rem;
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.65;
}
.ft-result-note {
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--faint);
  line-height: 1.6;
}

/* ── Architecture flow ── */
.ft-flow {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 640px;
}
.ft-node {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.ft-node-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}
.ft-node-sub { font-size: 0.8rem; color: var(--muted); }
.ft-node-ai     { border-color: var(--accent-dim); background: var(--accent-glow); }
.ft-node-switch { border-color: var(--border2); }
.ft-node-alert  { border-left: 3px solid var(--accent); }
.ft-node-err    { border-style: dashed; border-color: var(--faint); margin-top: 0.5rem; }
.ft-node-err .ft-node-title { color: var(--muted); }

.ft-arrow { text-align: center; color: var(--faint); font-size: 1.1rem; line-height: 1; }
.ft-branch { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }

/* ── Design decisions ── */
.ft-decisions {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.ft-decision {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: border-color var(--transition);
}
.ft-decision:hover { border-color: var(--border2); }
.ft-decision-choice {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.ft-decision-why { font-size: 0.9rem; color: var(--muted); line-height: 1.65; }

/* ── Standout callout ── */
.ft-callout {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 2rem;
}
.ft-callout-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.ft-callout-title {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 3.5vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.9rem;
}
.ft-callout-p { font-size: 0.98rem; color: var(--muted); line-height: 1.75; max-width: 62ch; }

/* ── Test table ── */
.ft-table-wrap {
  margin-top: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.ft-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.ft-table th {
  text-align: left;
  padding: 0.7rem 1rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}
.ft-table td {
  padding: 0.7rem 1rem;
  color: var(--text);
  border-bottom: 1px solid var(--surface2);
  vertical-align: top;
}
.ft-table tbody tr:last-child td { border-bottom: none; }
.ft-table tbody tr:hover { background: var(--surface2); }
.ft-table td:last-child { color: var(--accent); }

.ft-note {
  margin-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
  padding-left: 1rem;
  border-left: 2px solid var(--border2);
  max-width: 65ch;
}

/* ── Screenshot gallery — single column, readable ── */
.ft-gallery {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.ft-shot {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.ft-shot img {
  display: block;
  width: 100%;
  height: auto;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.ft-shot figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.55;
}

/* Portrait shots shown as a pair so they render near native size
   instead of being upscaled across the full column width. */
.ft-shot-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

/* ── Stack chips ── */
.ft-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}
.ft-stack span {
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.7rem;
}

/* ── Closing CTA ── */
.ft-close {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
}
.ft-close-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.ft-close-p {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 46ch;
  margin: 0 auto 1.5rem;
  line-height: 1.7;
}

/* ── Footer ── */
.ft-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--faint);
  flex-wrap: wrap;
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── Accessibility floor ── */
a:focus-visible, button:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .ft-dot, .ft-spinner { animation: none; }
}

/* ── Responsive ── */
@media (max-width: 780px) {
  .ft-shot-pair { grid-template-columns: 1fr; }
  .ft-demo-grid { grid-template-columns: 1fr; }
  .ft-decisions { grid-template-columns: 1fr; }
  .ft-branch    { grid-template-columns: 1fr; }
  .ft-demo-output { min-height: 240px; }
}
@media (max-width: 640px) {
  .ft-header { padding: 1rem; }
  .ft-header-title { display: none; }
  .ft-main { padding: 0 1.1rem; }
  .ft-hero { padding: 2.5rem 0 2rem; }
  .ft-footer { padding: 1.25rem; flex-direction: column; gap: 0.4rem; text-align: center; justify-content: center; }
}