/* Leistungen page-specific styles */

/* APPROACH – Numbered Cards */
.approach-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.approach-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-xl);
  padding: 32px 24px; position: relative; transition: border-color .4s, box-shadow .4s;
  box-shadow: var(--card-shadow);
}
.approach-card:hover { border-color: var(--accent-border-hover); box-shadow: var(--card-shadow-hover); }
.approach-card-num {
  font-family: var(--font-heading); font-size: 3.5rem; font-weight: 400;
  color: var(--accent-bg-subtle); line-height: 1; margin-bottom: 16px; user-select: none;
}
.approach-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.approach-card p { font-size: .88rem; color: var(--text-secondary); line-height: 1.6; }
.approach-card .tag { margin-top: 16px; display: inline-block; }

.approach-compact { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); align-items: start; }

/* USE CASES – Card-Accordion */
.usecase-grid { display: flex; flex-direction: column; gap: 12px; }
.usecase-row { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-xl); overflow: hidden; transition: all .4s; box-shadow: var(--card-shadow); }
.usecase-row:hover, .usecase-row.open { border-color: var(--accent-border-subtle); }
.usecase-row.open { box-shadow: var(--shadow-md); }
.usecase-header { padding: 28px 32px; display: flex; align-items: center; gap: 16px; cursor: pointer; transition: background .3s; }
.usecase-header:hover { background: var(--overlay-subtle); }
.usecase-emoji { flex-shrink: 0; }
.usecase-title-group { flex: 1; min-width: 0; }
.usecase-header h3 { font-size: 1.05rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.usecase-metric-badge { display: flex; align-items: baseline; gap: 8px; flex-shrink: 0; padding: 8px 18px; background: var(--accent-bg-subtle); border-radius: var(--radius-sm); }
.usecase-metric-sm { font-family: var(--font-heading); font-size: 2rem; font-weight: 600; color: var(--accent); line-height: 1; }
.usecase-metric-label { font-size: .75rem; color: var(--text-muted); max-width: 120px; line-height: 1.3; }
.usecase-body { max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .4s ease; padding: 0 32px; }
.usecase-row.open .usecase-body { max-height: 600px; padding: 0 32px 32px; }
.usecase-problem-text { color: var(--text-secondary); font-size: .95rem; margin-bottom: 20px; line-height: 1.7; padding-top: 8px; border-top: 1px solid var(--border); }
.usecase-solutions-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.sol-item { display: flex; gap: 10px; align-items: flex-start; padding: 14px 16px; background: var(--accent-bg-faint); border-radius: var(--radius-md); border: 1px solid var(--accent-bg-subtle); }
.sol-item .arrow { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.sol-item .txt { font-size: .88rem; color: var(--text-secondary); line-height: 1.5; }
.usecase-source { font-size: .78rem; color: var(--text-muted); margin-top: 16px; font-style: italic; }
.toggle-icon { margin-left: auto; color: var(--text-muted); transition: transform .3s; flex-shrink: 0; }
.usecase-row.open .toggle-icon { transform: rotate(180deg); color: var(--accent); }
.disclaimer { font-size: .8rem; color: var(--text-muted); font-style: italic; padding: 20px 0; border-top: 1px solid var(--border); margin-top: var(--space-xl); }

/* SERVICE TIERS */
.tier-grid { display: flex; flex-direction: column; gap: var(--space-lg); }
.tier-card { display: grid; grid-template-columns: 320px 1fr; gap: 0; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-xl); overflow: hidden; transition: all .4s; scroll-margin-top: 100px; box-shadow: var(--card-shadow); }
.tier-card:hover { border-color: var(--accent-border-hover); box-shadow: var(--shadow-md); }
.tier-left { padding: var(--space-lg); display: flex; flex-direction: column; gap: 16px; border-right: 1px solid var(--border); background: var(--accent-bg-faint); }
.tier-emoji { line-height: 1; }
.tier-label { font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--accent); }
.tier-left h3 { font-family: var(--font-heading); font-size: 1.6rem; font-weight: 400; }
.tier-for { font-size: .88rem; color: var(--text-muted); line-height: 1.5; font-style: italic; }
.tier-format { display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--text-secondary); padding: 8px 14px; background: var(--overlay-subtle); border-radius: var(--radius-sm); margin-top: auto; }
.tier-right { padding: var(--space-lg); }
.tier-right > p { color: var(--text-secondary); font-size: .95rem; line-height: 1.7; margin-bottom: 16px; }
.tier-details { margin: 20px 0; }
.tier-detail { padding: 12px 0; border-bottom: 1px solid var(--border); display: flex; gap: 12px; }
.tier-detail:last-child { border-bottom: none; }
.tier-detail strong { color: var(--text-primary); font-size: .9rem; min-width: 140px; flex-shrink: 0; }
.tier-detail span { color: var(--text-secondary); font-size: .88rem; line-height: 1.5; }
.deliverables { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); }
.deliverable-tag { font-size: .78rem; padding: 8px 16px; border-radius: var(--radius-pill); background: var(--accent-bg-subtle); color: var(--accent); font-weight: 600; border: 1px solid var(--accent-border-subtle); }
.tier-cta { display: inline-flex; align-items: center; gap: 6px; margin-top: 24px; font-size: .9rem; font-weight: 600; color: var(--accent); text-decoration: none; transition: gap .3s; }
.tier-cta:hover { gap: 10px; }

/* TECH */
.tech-section-grid { display: flex; flex-direction: column; gap: var(--space-xl); }
.tech-block h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.tech-block h3 span { color: var(--accent); }
.tech-block > p { font-size: .9rem; color: var(--text-muted); margin-bottom: 20px; max-width: 700px; }

.context-highlight { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 400; color: var(--text-primary); margin: 12px 0 8px; font-style: normal; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .approach-cards { grid-template-columns: repeat(2, 1fr); }
  .approach-compact { grid-template-columns: 1fr; }
  .tier-card { grid-template-columns: 1fr; }
  .tier-left { border-right: none; border-bottom: 1px solid var(--border); }
  .usecase-metric-badge { padding: 6px 12px; }
  .usecase-metric-sm { font-size: 1.6rem; }
}
@media (max-width: 768px) {
  .usecase-solutions-list { grid-template-columns: 1fr; }
  .usecase-header { padding: 20px; gap: 12px; flex-wrap: wrap; }
  .usecase-header h3 { white-space: normal; font-size: 1rem; }
  .approach-cards { grid-template-columns: 1fr; }
  .usecase-metric-badge { order: 4; width: 100%; justify-content: flex-start; margin-top: 4px; }
  .usecase-row.open .usecase-body { padding: 0 20px 20px; }
  .tier-detail { flex-direction: column; gap: 4px; }
  .tier-detail strong { min-width: 0; }
}