/* ============================================
   Episcope AB — Corporate Umbrella Website
   Blue gradient brand from logo arcs.
   Playfair Display headings + Inter body.
   ============================================ */

/* --- Design Tokens --- */
:root {
  --dark:         #1A1A1A;
  --blue-dark:    #0055A4;
  --blue-mid:     #2E8BC0;
  --blue-light:   #7EC8E3;
  --blue-pale:    #E8F4FD;
  --bg:           #FAFBFC;
  --bg-alt:       #F0F4F8;
  --white:        #FFFFFF;
  --text:         #1A1A1A;
  --text-muted:   #5A5F6B;
  --border:       #DDE3EA;
  --shadow-sm:    0 1px 3px rgba(0,0,0,.06);
  --shadow-md:    0 4px 12px rgba(0,0,0,.08);
  --shadow-lg:    0 8px 24px rgba(0,0,0,.12);
  --radius:       6px;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --container:    1140px;

  /* Product accent colors */
  --epilog:       #2E8BC0;
  --epiforest:    #2D6A4F;
  --epipower:     #E8710A;
  --epicert:      #1A535C;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); font-size: 1rem; line-height: 1.65; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--blue-mid); text-decoration: none; transition: color .2s; }
a:hover { color: var(--blue-dark); }
ul, ol { list-style: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }

/* --- Typography --- */
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; color: var(--text); }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); letter-spacing: -.015em; }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; font-weight: 600; }
p { max-width: 65ch; }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.text-white { color: var(--white); }
.lead { font-size: 1.15rem; line-height: 1.7; color: var(--text-muted); }
.overline { font-family: var(--font-body); font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--blue-mid); margin-bottom: .5rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }

/* --- Layout --- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 1.25rem; }
section { padding: 5rem 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--dark); color: var(--white); }
.section-dark h2, .section-dark h3, .section-dark h4, .section-dark p { color: var(--white); }
.section-dark .text-muted, .section-dark .lead { color: rgba(255,255,255,.7); }
.section-dark a { color: var(--blue-light); }
.section-dark a:hover { color: var(--white); }

/* --- Grid --- */
.grid { display: grid; gap: 2rem; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.split { display: grid; gap: 3rem; align-items: center; grid-template-columns: 1fr; }
@media (min-width: 768px) {
  .split { grid-template-columns: 1fr 1fr; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1.75rem; border-radius: var(--radius);
  font-weight: 600; font-size: .95rem;
  transition: transform .15s, box-shadow .15s, background .2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-dark); color: var(--white);
  box-shadow: 0 2px 8px rgba(0,85,164,.3);
}
.btn-primary:hover {
  background: var(--blue-mid); color: var(--white);
  box-shadow: 0 4px 16px rgba(0,85,164,.35);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 1px 4px rgba(0,85,164,.25); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: var(--white); color: var(--dark);
  border-color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0,0,0,.15);
}
.btn-outline:active { transform: translateY(0); box-shadow: none; }
.btn-secondary {
  background: var(--white); color: var(--blue-dark);
  border: 2px solid var(--blue-dark);
}
.btn-secondary:hover {
  background: var(--blue-dark); color: var(--white);
  transform: translateY(-1px);
}
.btn-group { display: flex; flex-wrap: wrap; gap: 1rem; }

/* --- Nav --- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1rem 0;
  transition: background .3s, box-shadow .3s, padding .3s;
}
.nav.scrolled {
  background: var(--white);
  box-shadow: 0 1px 8px rgba(0,0,0,.06);
  padding: .65rem 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 36px; width: auto; filter: brightness(0) invert(1); transition: filter .3s; }
.nav.scrolled .nav-logo img { filter: none; }
.nav-links { display: none; align-items: center; gap: 2rem; }
.nav-links a {
  color: rgba(255,255,255,.85); font-size: .9rem; font-weight: 600;
  transition: color .2s;
}
.nav-links a:hover { color: var(--white); }
.nav.scrolled .nav-links a { color: var(--text-muted); }
.nav.scrolled .nav-links a:hover { color: var(--blue-dark); }
@media (min-width: 768px) {
  .nav-links { display: flex; }
}

/* Hamburger */
.nav-hamburger { display: flex; flex-direction: column; gap: 5px; padding: 4px; }
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--white); transition: background .3s;
}
.nav.scrolled .nav-hamburger span { background: var(--text); }
@media (min-width: 768px) { .nav-hamburger { display: none; } }

/* Mobile menu */
.mobile-menu {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--white); z-index: 99;
  flex-direction: column; align-items: center; justify-content: center; gap: 2rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: 1.25rem; font-weight: 600; color: var(--text); }
.mobile-menu a:hover { color: var(--blue-dark); }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  background: linear-gradient(160deg, var(--dark) 0%, #0A2744 40%, var(--blue-dark) 100%);
  overflow: hidden;
  padding: 8rem 1.25rem 5rem;
}
.hero::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 30%, rgba(46,139,192,.15) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 70%, rgba(126,200,227,.1) 0%, transparent 60%);
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }
.hero h1 { color: var(--white); margin-bottom: 1.25rem; max-width: 800px; }
.hero .lead { color: rgba(255,255,255,.8); margin-bottom: 2rem; max-width: 640px; margin-left: auto; margin-right: auto; }
.hero .btn-group { justify-content: center; margin-top: .5rem; }

/* Product badges in hero */
.product-badges { display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center; margin-bottom: 2.5rem; }
.product-badge {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .45rem 1rem; border-radius: 999px;
  font-size: .85rem; font-weight: 600;
  background: rgba(255,255,255,.08); color: var(--white);
  border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(4px);
}
.product-badge[data-product="epilog"]    { border-color: var(--epilog); background: rgba(46,139,192,.15); }
.product-badge[data-product="epiforest"] { border-color: var(--epiforest); background: rgba(45,106,79,.15); }
.product-badge[data-product="epipower"]  { border-color: var(--epipower); background: rgba(232,113,10,.15); }
.product-badge[data-product="epicert"]   { border-color: var(--epicert); background: rgba(26,83,92,.15); }

/* --- Om oss / Vision --- */
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (min-width: 640px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-item { text-align: center; }
.stat-number { font-family: var(--font-heading); font-size: 2.5rem; font-weight: 700; color: var(--blue-dark); line-height: 1.2; }
.stat-label { font-size: .85rem; color: var(--text-muted); margin-top: .25rem; }

/* --- Product Cards --- */
.product-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem 2rem 2rem 2.5rem;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--border);
  transition: transform .2s, box-shadow .2s;
}
.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.product-card[data-product="epilog"]    { border-left-color: var(--epilog); }
.product-card[data-product="epiforest"] { border-left-color: var(--epiforest); }
.product-card[data-product="epipower"]  { border-left-color: var(--epipower); }
.product-card[data-product="epicert"]   { border-left-color: var(--epicert); }

.product-card .product-icon {
  width: 48px; height: 48px; border-radius: 10px; margin-bottom: 1rem;
  display: flex; align-items: center; justify-content: center;
}
.product-card[data-product="epilog"] .product-icon    { background: rgba(46,139,192,.1); color: var(--epilog); }
.product-card[data-product="epiforest"] .product-icon { background: rgba(45,106,79,.1); color: var(--epiforest); }
.product-card[data-product="epipower"] .product-icon  { background: rgba(232,113,10,.1); color: var(--epipower); }
.product-card[data-product="epicert"] .product-icon   { background: rgba(26,83,92,.1); color: var(--epicert); }

.product-card h3 { margin-bottom: .5rem; }
.product-card .product-desc { font-size: .95rem; color: var(--text-muted); margin-bottom: 1rem; }
.product-card ul { margin-bottom: 1.5rem; }
.product-card li {
  padding: .3rem 0; font-size: .9rem; color: var(--text);
  padding-left: 1.25rem; position: relative;
}
.product-card li::before {
  content: '→'; position: absolute; left: 0; color: var(--text-muted);
}
.product-card .card-link {
  font-weight: 600; font-size: .9rem;
  display: inline-flex; align-items: center; gap: .35rem;
}
.product-card[data-product="epilog"] .card-link    { color: var(--epilog); }
.product-card[data-product="epiforest"] .card-link { color: var(--epiforest); }
.product-card[data-product="epipower"] .card-link  { color: var(--epipower); }
.product-card[data-product="epicert"] .card-link   { color: var(--epicert); }

/* --- Value Chain --- */
.chain-flow {
  display: flex; flex-direction: column; gap: 0; align-items: stretch;
}
@media (min-width: 768px) {
  .chain-flow { flex-direction: row; align-items: flex-start; }
}
.chain-step {
  flex: 1; text-align: center; padding: 1.5rem 1rem;
  position: relative;
}
.chain-step::after {
  content: '↓'; display: block;
  font-size: 1.5rem; color: var(--blue-light);
  margin-top: .75rem;
}
.chain-step:last-child::after { display: none; }
@media (min-width: 768px) {
  .chain-step::after { content: '→'; position: absolute; right: -1rem; top: 50%; transform: translateY(-50%); margin-top: 0; }
}
.chain-icon {
  width: 56px; height: 56px; border-radius: 50%; margin: 0 auto .75rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
}
.chain-step h4 { font-size: .95rem; margin-bottom: .35rem; }
.chain-product {
  display: inline-block; padding: .2rem .65rem; border-radius: 999px;
  font-size: .75rem; font-weight: 700; color: var(--white);
}

/* --- Kunder --- */
.customer-logos {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 2.5rem;
  margin-bottom: 3rem;
}
.customer-logo {
  font-family: var(--font-heading); font-size: 1.35rem; font-weight: 700;
  color: var(--text-muted); opacity: .5; transition: opacity .2s;
}
.customer-logo:hover { opacity: .8; }

.testimonial-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .testimonial-grid { grid-template-columns: repeat(2, 1fr); } }
.testimonial {
  background: var(--white); border-radius: var(--radius);
  padding: 2rem; box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--blue-mid);
}
.testimonial blockquote {
  font-style: italic; font-size: 1.05rem; line-height: 1.7;
  color: var(--text); margin-bottom: 1rem;
}
.testimonial cite {
  font-style: normal; font-size: .9rem; font-weight: 600; color: var(--text-muted);
}

/* --- Contact --- */
.contact-grid { display: grid; gap: 3rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-info p { color: rgba(255,255,255,.7); margin-bottom: 1rem; }
.contact-info a { color: var(--blue-light); }

.contact-form {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 2rem;
}
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block; font-size: .85rem; font-weight: 600;
  color: rgba(255,255,255,.8); margin-bottom: .35rem;
}
.form-group input,
.form-group textarea {
  width: 100%; padding: .75rem 1rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius); color: var(--white);
  transition: border-color .2s, background .2s;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,.35); }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-mid);
  background: rgba(255,255,255,.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.honeypot { position: absolute; left: -9999px; opacity: 0; }
.form-status { margin-top: 1rem; font-size: .9rem; }
.form-status.success { color: #4ADE80; }
.form-status.error { color: #F87171; }

/* --- Footer --- */
.footer {
  background: var(--dark); color: rgba(255,255,255,.6);
  padding: 3rem 0 2rem; font-size: .85rem;
}
.footer-inner {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer-links a { color: rgba(255,255,255,.6); transition: color .2s; }
.footer-links a:hover { color: var(--white); }

/* --- Animations --- */
.fade-up {
  opacity: 0; transform: translateY(24px);
  transition: opacity .6s ease-out, transform .6s ease-out;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }