/* SolvAI — Markentypische Komponenten (Logo, Buttons, Cards, Nav, Form, Footer) */

/* ---------- Logo-Lockup ---------- */
.logo {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--color-ink);
  --logo-size: 1.5rem;
}
.logo__word {
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  font-size: var(--logo-size);
  white-space: nowrap;
}
.logo__word .ai {
  font-weight: 600;
}
.logo__rule {
  width: calc(var(--logo-size) * 0.83);
  height: 2px;
  opacity: 0.5;
  background: currentColor;
  margin-top: calc(var(--logo-size) * 0.26);
}
.logo__tag {
  font-family: var(--font-sans);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-tag);
  font-size: max(0.6875rem, calc(var(--logo-size) * 0.178));
  color: var(--color-grey);
  margin-top: calc(var(--logo-size) * 0.4);
}
.logo--center {
  align-items: center;
  text-align: center;
}
.logo--on-navy {
  color: var(--color-cream);
}
.logo--on-navy .logo__tag {
  color: var(--color-mist);
}
.logo--compact .logo__tag {
  display: none;
}
.logo--compact .logo__rule {
  margin-top: calc(var(--logo-size) * 0.18);
}

/* ---------- Buttons ---------- */
.btn {
  --btn-fill: var(--color-ink);
  --btn-fill-text: var(--color-cream);
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  overflow: hidden;
  border: 1.5px solid transparent;
  transition:
    box-shadow var(--dur-base) var(--ease-calm),
    border-color var(--dur-base) var(--ease-calm),
    transform var(--dur-fast) var(--ease-calm);
}
.btn:active {
  transform: scale(0.985);
}
.btn:focus-visible {
  box-shadow: var(--shadow-focus);
  outline: none;
}
.btn__fill {
  position: absolute;
  left: var(--fx, 50%);
  top: var(--fy, 50%);
  width: var(--fd, 0px);
  height: var(--fd, 0px);
  background: var(--btn-fill);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform var(--dur-slow) var(--ease-calm);
  z-index: 0;
  pointer-events: none;
}
.btn.is-filling .btn__fill {
  transform: translate(-50%, -50%) scale(1);
}
.btn__label {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: inherit;
  transition: color var(--dur-base) var(--ease-calm);
}
.btn.is-filling .btn__label {
  color: var(--btn-fill-text);
}

.btn--primary {
  background: var(--color-navy);
  color: var(--color-cream);
  box-shadow: var(--shadow-navy-soft);
  /* Button hat bereits einen dunklen (Navy-)Hintergrund — die Füllung geht darum auf ein
     deutlich unterscheidbares Dunkelblau statt auf Hell/Weiss (das wäre auf einem primären
     Button ein zu harter Kontrastsprung). Text bleibt hell, da Dunkelblau weiterhin dunkel ist. */
  --btn-fill: var(--color-blue-deep);
  --btn-fill-text: var(--color-cream);
}
.btn--primary:hover {
  box-shadow: var(--shadow-lg);
}

.btn--secondary {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
  --btn-fill: var(--color-navy);
  --btn-fill-text: var(--color-cream);
}

.btn--on-navy.btn--secondary {
  color: var(--color-cream);
  border-color: rgba(244, 242, 237, 0.4);
  /* Steht auf Navy-Fläche — also bereits "schwarzer" Hintergrund. Füllung geht darum auf
     Dunkelblau statt Creme/Weiss, siehe .btn--primary. */
  --btn-fill: var(--color-blue-deep);
  --btn-fill-text: var(--color-cream);
}

.btn--sm {
  padding: 9px 18px;
  font-size: 0.875rem;
}

.link {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  font-weight: 600;
  transition: opacity var(--dur-base) var(--ease-calm);
}
.link:hover {
  opacity: 0.7;
}

/* ---------- Eyebrow / Rule ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: var(--fs-eyebrow);
  color: var(--color-grey);
  margin-bottom: var(--space-4);
}
.eyebrow--on-navy {
  color: var(--color-mist);
}
.rule {
  width: 48px;
  height: 2px;
  background: var(--color-navy);
  opacity: 0.35;
  border: none;
}
.rule--on-navy {
  background: var(--color-mist);
  opacity: 0.5;
}

/* ---------- Icon-Kachel ---------- */
.icon-tile {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-navy);
  color: var(--color-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-navy-soft);
}
.icon-tile svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 1.6;
  fill: none;
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  transition:
    transform var(--dur-base) var(--ease-calm),
    box-shadow var(--dur-base) var(--ease-calm);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card h3 {
  font-size: var(--fs-h3);
  margin-bottom: var(--space-3);
}
.card p {
  color: var(--color-grey);
}

.value-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-beige);
  transition:
    transform var(--dur-base) var(--ease-calm),
    box-shadow var(--dur-base) var(--ease-calm);
}
.value-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.value-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}
.value-card p {
  color: var(--color-grey);
  font-size: var(--fs-small);
}

/* ---------- Prozess-Schritte ---------- */
.process-step {
  position: relative;
  padding-top: var(--space-5);
}
.process-step__index {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--color-mist);
  margin-bottom: var(--space-3);
}
.process-step h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
}
.process-step__desc {
  color: var(--color-grey);
  font-size: var(--fs-small);
}

/* ---------- Stat / Pain-Point ---------- */
.stat {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: var(--fs-stat);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--color-navy);
}

/* ---------- Avatar-Platzhalter (Über mich) ---------- */
.avatar-slot {
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, var(--color-beige), var(--color-cream));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.avatar-slot span {
  font-family: var(--font-serif);
  font-size: 4rem;
  color: var(--color-navy);
  opacity: 0.3;
}

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(244, 242, 237, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(11, 18, 32, 0.07);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  padding: 0;
}
.nav__link {
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  position: relative;
  padding: var(--space-1) 0;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1.5px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-base) var(--ease-calm);
}
.nav__link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}
.nav__toggle:hover {
  background: var(--color-beige);
}
.nav__toggle svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-ink);
  stroke-width: 1.6;
  fill: none;
}

@media (max-width: 860px) {
  .nav__links {
    position: fixed;
    inset: 72px var(--space-4) auto var(--space-4);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-lg);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    transition:
      transform var(--dur-base) var(--ease-calm),
      opacity var(--dur-base) var(--ease-calm);
  }
  .nav__links.is-open {
    transform: scaleY(1);
    opacity: 1;
  }
  .nav__toggle {
    display: inline-flex;
  }
}

/* ---------- Formular ---------- */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.form-field label {
  font-size: var(--fs-small);
  font-weight: 600;
}
.form-field input,
.form-field textarea {
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-beige);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-family: var(--font-sans);
  transition:
    border-color var(--dur-base) var(--ease-calm),
    box-shadow var(--dur-base) var(--ease-calm);
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--color-navy);
  box-shadow: var(--shadow-focus);
  outline: none;
}
.form-field--checkbox {
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-3);
}
.form-field--checkbox input {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--color-navy);
}
.botcheck-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form-status {
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: var(--fs-small);
  margin-top: var(--space-4);
  display: none;
}
.form-status.is-visible {
  display: block;
}
.form-status--success {
  background: #e7efe6;
  color: #2f5233;
}
.form-status--error {
  background: #f7e7e4;
  color: #7a2e21;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-navy);
  color: var(--color-cream);
  padding: var(--space-9) 0 var(--space-6);
}
.footer__contact a,
.footer__links a {
  color: var(--color-mist);
}
.footer__meta {
  text-align: center;
  color: rgba(244, 242, 237, 0.7);
  font-size: var(--fs-small);
  margin-top: var(--space-6);
}
.footer__links {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  margin-top: var(--space-5);
}
.footer__links a {
  text-decoration: none;
}
.footer__links a:hover {
  text-decoration: underline;
}
.footer__divider {
  color: rgba(244, 242, 237, 0.4);
}
.footer__copy {
  text-align: center;
  font-size: 0.75rem;
  color: rgba(244, 242, 237, 0.5);
  margin-top: var(--space-7);
}