/**
 * REFERENSSIEN TYYLIT — Digilapio asiakasreferenssit
 * Case-kortit, case-detail-osiot, vahva asiakaskohtainen väriaksentti
 * Peilaa sivuston cyber-teemaa, käyttää olemassa olevia tokeneita
 */

/* ============================================
   CASE-GRID — Esittelyruudukko (3 korttia)
   ============================================ */
.case-grid {
  display: grid;
  gap: var(--space-6, 1.5rem);
  grid-template-columns: 1fr;
  margin-bottom: 4rem;
}

@media (min-width: 640px) {
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .case-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Esittelykortti */
.case-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg, 2px);
  padding: var(--space-4, 1rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-4, 1rem);
  text-decoration: none;
  transition: transform var(--transition-base, 0.3s ease),
              border-color var(--transition-base, 0.3s ease),
              box-shadow var(--transition-base, 0.3s ease);
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: 0 20px 40px -10px rgba(0, 255, 157, 0.08);
}

/* Kortin kuvakaappaus */
.case-card-image {
  aspect-ratio: 16 / 10;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-btn, 4px);
  background: rgba(0, 0, 0, 0.3);
}

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base, 0.3s ease);
}

/* Placeholder: näkyy kunnes oikea kuvakaappaus latautuu (onload piilottaa) */
.case-card-image-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: lowercase;
  background:
    linear-gradient(rgba(0, 255, 157, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 157, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.case-card-image {
  position: relative;
}

.case-card:hover .case-card-image img {
  transform: scale(1.03);
}

/* Kortin tekstisisältö */
.case-card-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-primary);
  margin: 0;
}

.case-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
  line-height: 1.3;
}

.case-card-nosto {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
  flex: 1;
}

.case-card-link {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: auto;
}

.case-card-link i {
  transition: transform var(--transition-base, 0.3s ease);
}

.case-card:hover .case-card-link i {
  transform: translateX(4px);
}

/* ============================================
   CASE-DETAIL — Täysileveä case-osio
   ============================================ */
.case-detail {
  /* --case-accent ja --case-accent-rgb määritellään per case inline */
  --case-accent: var(--accent-primary);
  --case-accent-rgb: 0, 255, 157;
  padding: var(--space-12, 3rem) 0;
  border-top: 1px solid rgba(0, 255, 157, 0.15);
  background: linear-gradient(
    180deg,
    rgba(var(--case-accent-rgb), 0.03) 0%,
    transparent 60%
  );
  scroll-margin-top: 6rem;
  position: relative;
}

/* Neonvihreä ohut hehglu case-osion yläreunassa sitoo sen Digilapioon */
.case-detail::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 2px;
  background: var(--accent-primary);
  box-shadow: 0 0 12px rgba(0, 255, 157, 0.5);
}

@media (max-width: 768px) {
  .case-detail {
    padding: 2.5rem 0;
  }
}

.case-detail-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (max-width: 768px) {
  .case-detail-inner {
    padding: 0 1.25rem;
  }
}

/* Numeroidut case-tunniste + eyebrow */
.case-header {
  display: flex;
  align-items: center;
  gap: var(--space-4, 1rem);
  margin-bottom: var(--space-4, 1rem);
  flex-wrap: wrap;
}

.case-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(var(--case-accent-rgb), 0.12);
  border: 1px solid var(--case-accent);
  color: var(--accent-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 50%;
  flex-shrink: 0;
  letter-spacing: 0.02em;
  box-shadow: 0 0 12px rgba(0, 255, 157, 0.15);
}

.case-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-primary);
}

/* Asiakaskohtainen väri näkyy eyebrown perässä olevassa erottimessa (·) */
.case-eyebrow .case-eyebrow-accent {
  color: var(--case-accent);
}

/* Case-otsikko (H2) — gradient case-värillä */
.case-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-6, 1.5rem);
  background: linear-gradient(135deg, var(--text-main), var(--case-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   CASE-BLOCKQUOTE — Nostolainaus
   ============================================ */
.case-blockquote {
  position: relative;
  margin: 0 0 var(--space-8, 2rem);
  padding: var(--space-6, 1.5rem) var(--space-6, 1.5rem) var(--space-6, 1.5rem) 2.75rem;
  background: rgba(var(--case-accent-rgb), 0.06);
  border-left: 3px solid var(--case-accent);
  border-radius: var(--border-radius-btn, 4px);
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-main);
  font-style: italic;
}

.case-blockquote::before {
  content: '\201C';
  position: absolute;
  left: 0.5rem;
  top: 0;
  font-size: 3rem;
  color: var(--accent-primary);
  opacity: 0.5;
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1;
  font-style: normal;
  pointer-events: none;
}

/* ============================================
   CASE-BODY — Tarina-leipäteksti
   ============================================ */
.case-body {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-muted);
  margin: 0 0 var(--space-4, 1rem);
}

.case-body:last-of-type {
  margin-bottom: var(--space-8, 2rem);
}

.case-body strong {
  color: var(--text-main);
  font-weight: 600;
}

/* ============================================
   CASE-TABLE — Tekninen toteutus
   ============================================ */
.case-table-wrapper {
  margin: var(--space-8, 2rem) 0;
}

.case-table-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-primary);
  margin-bottom: var(--space-4, 1rem);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.case-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg, 2px);
  overflow: hidden;
}

.case-table caption.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.case-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  color: var(--accent-primary);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid rgba(var(--case-accent-rgb), 0.4);
  background: rgba(var(--case-accent-rgb), 0.06);
}

.case-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--glass-border);
  color: var(--text-muted);
  line-height: 1.6;
  vertical-align: top;
}

.case-table tr:last-child td {
  border-bottom: none;
}

.case-table td:first-child {
  color: var(--accent-primary);
  font-weight: 600;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .case-table td:first-child {
    white-space: normal;
  }
  .case-table th,
  .case-table td {
    padding: 0.6rem 0.75rem;
    font-size: 0.85rem;
  }
}

/* ============================================
   CASE-TAGS — Avainsanat
   ============================================ */
.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: var(--space-6, 1.5rem) 0 var(--space-8, 2rem);
}

.case-tag {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  background: rgba(var(--case-accent-rgb), 0.08);
  border: 1px solid rgba(var(--case-accent-rgb), 0.35);
  border-radius: var(--border-radius-btn, 4px);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--case-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
}

/* Neonvihreä piste sitoo tagin Digilapion ilmeeseen */
.case-tag::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--accent-primary);
  border-radius: 50%;
  margin-right: 0.5rem;
  vertical-align: middle;
  box-shadow: 0 0 6px rgba(0, 255, 157, 0.5);
}

/* ============================================
   CASE-RESULT — Tulos-laatikko
   ============================================ */
.case-result {
  margin: var(--space-6, 1.5rem) 0 var(--space-8, 2rem);
  padding: var(--space-6, 1.5rem);
  background: rgba(var(--case-accent-rgb), 0.06);
  border: 1px solid rgba(var(--case-accent-rgb), 0.3);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--border-radius-btn, 4px);
}

.case-result-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.case-result p {
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
  font-size: 0.9rem;
}

/* ============================================
   CASE-LINK — "Käy sivustolla" -painike
   ============================================ */
.case-link {
  display: inline-flex;
  align-items: center;
  gap: clamp(0.4rem, 1vw, 0.75rem);
  padding: clamp(0.6rem, 1.5vw, 1rem) clamp(1rem, 2.5vw, 2rem);
  background: var(--accent-primary);
  color: #0a0e1a;
  border: 2px solid var(--accent-primary);
  border-radius: var(--border-radius-btn, 4px);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-base, 0.3s ease);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: clamp(0.7rem, 1.8vw, 0.9rem);
  font-family: inherit;
  box-shadow: 0 0 15px rgba(0, 255, 157, 0.25);
  margin-top: var(--space-4, 1rem);
}

.case-link:hover {
  transform: translateY(-2px);
  background: var(--accent-secondary);
  border-color: var(--accent-secondary);
  color: #fff;
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.4);
}

.case-link i {
  transition: transform var(--transition-base, 0.3s ease);
}

.case-link:hover i {
  transform: translateX(3px);
}

/* ============================================
   CASE-COLORS — Asiakaskohtaiset aksentit
   ============================================ */
.case-rt-talotekniikka {
  --case-accent: #94a3b8;
  --case-accent-rgb: 148, 163, 184;
}

.case-halpavesijetti {
  --case-accent: #14b8a6;
  --case-accent-rgb: 20, 184, 166;
}

.case-ps-muovi {
  --case-accent: #e2e8f0;
  --case-accent-rgb: 226, 232, 240;
}

/* ============================================
   YHTEENSVETO-CTA
   ============================================ */
.referenssit-summary {
  max-width: 820px;
  margin: 0 auto;
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid var(--glass-border);
}

.referenssit-summary .section-title {
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  margin-bottom: var(--space-4, 1rem);
}

.referenssit-summary p {
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto var(--space-6, 1.5rem);
}

@media (max-width: 768px) {
  .referenssit-summary {
    padding: 2.5rem 1.25rem;
  }
}

/* ============================================
   CASE-SCREENSHOT — Kuvakaappauskehys
   Yhtenäinen Digilapio-tyylinen kehys kaikille kuvakaappauksille.
   Korvaa aiemman cyber-window-rakenteen case-kuvissa.
   ============================================ */
.case-screenshot {
  position: relative;
  margin: 0 0 var(--space-8, 2rem);
  border: 1px solid rgba(0, 255, 157, 0.25);
  border-radius: var(--border-radius-btn, 4px);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.3);
  box-shadow:
    0 0 20px rgba(0, 255, 157, 0.08),
    0 4px 16px rgba(0, 0, 0, 0.4);
}

.case-screenshot img {
  width: 100%;
  height: auto;
  display: block;
}

/* Placeholder: näkyy kunnes oikea kuvakaappaus latautuu (onload piilottaa) */
.case-screenshot-placeholder {
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: lowercase;
  background:
    linear-gradient(rgba(0, 255, 157, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 157, 0.05) 1px, transparent 1px),
    rgba(0, 0, 0, 0.4);
  background-size: 24px 24px, 24px 24px, auto;
  text-shadow: 0 0 8px rgba(0, 255, 157, 0.4);
}
.referenssit-hero .section-eyebrow,
.referenssit-hero h1 {
  text-align: center;
}

.referenssit-hero .section-lead {
  margin: 0 auto;
}