/* =========================================================
   FINN FREIGHT WORKS — "SISU GRID" DESIGN SYSTEM
   Inspired by Finnish functionalist architecture: visible
   structural grids, sheet-reference labels (A1, B2, C1...),
   flat rectangular forms, no ornament without a reason.
   Palette: Birch cream / Spruce green / Lichen accent.
   ========================================================= */

:root {
  --cream: #EDE6D6;
  --paper: #F7F4EC;
  --spruce: #1F3A2E;
  --spruce-light: #2C4F3E;
  --lichen: #8FA31E;
  --lichen-dark: #5C6B12;
  --ink: #262420;
  --ink-muted: #5C594F;
  --line: rgba(38, 36, 32, 0.18);
  --line-strong: rgba(38, 36, 32, 0.34);
  --white: #FFFFFF;
  --error: #8A2E1E;
  --success: #2F5C3A;

  --font-display: Arial, 'Helvetica Neue', Helvetica, sans-serif;
  --font-body: Georgia, 'Times New Roman', Times, serif;
  --font-label: Arial, 'Helvetica Neue', Helvetica, sans-serif;

  --container: 1200px;
  --radius: 2px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--spruce);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.3px;
  margin: 0 0 16px;
}
h1 { font-size: clamp(2rem, 3.8vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); }
h3 { font-size: 1.22rem; }
p { margin: 0 0 16px; color: var(--ink-muted); }

/* Grid coordinate label — the signature structural device.
   Every section is labeled like a sheet reference on an
   architectural drawing: a letter+number code, not a
   generic "eyebrow" tag. */
.grid-ref {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--lichen-dark);
  margin-bottom: 14px;
}
.grid-ref::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--lichen);
  display: inline-block;
}
.section--dark .grid-ref { color: var(--lichen); }

.section { padding: 84px 0; position: relative; }
.section--tight { padding: 52px 0; }
.section--dark { background: var(--spruce); color: var(--cream); }
.section--dark h2, .section--dark h3 { color: var(--white); }
.section--dark p { color: #C7D2C9; }
.section--paper { background: var(--paper); }
.section--white { background: var(--white); }

.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* Buttons: flat, rectangular, architectural */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.3px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--spruce); color: var(--cream); }
.btn-primary:hover { background: var(--spruce-light); }
.btn-outline { background: transparent; color: var(--spruce); border-color: var(--spruce); }
.btn-outline:hover { background: var(--spruce); color: var(--cream); }
.btn-outline-light { background: transparent; color: var(--cream); border-color: rgba(237,230,214,0.5); }
.btn-outline-light:hover { background: var(--cream); color: var(--spruce); border-color: var(--cream); }
.btn-block { width: 100%; justify-content: center; }
.btn + .btn { margin-left: -1px; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: var(--cream);
  border-bottom: 1px solid var(--line-strong);
}
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
}
.brand { display: flex; align-items: center; }
.brand img { height: 34px; width: auto; }

.site-nav ul { display: flex; align-items: center; gap: 28px; }
.site-nav a {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.2px;
  color: var(--ink);
}
.site-nav a:hover { color: var(--lichen-dark); }
.site-nav a.is-active { color: var(--spruce); border-bottom: 2px solid var(--lichen); padding-bottom: 4px; }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-actions .phone-link {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--ink);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--spruce); margin: 0 auto; transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO — blueprint grid overlay behind the copy/image
   ========================================================= */
.hero { background: var(--cream); position: relative; }
.hero .container { padding-top: 56px; padding-bottom: 40px; position: relative; }
.hero-grid-overlay {
  position: absolute;
  top: 8px; left: 28px; right: 28px; bottom: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  pointer-events: none;
}
.hero-grid-overlay div { border-left: 1px solid var(--line); }
.hero-grid-overlay div:last-child { border-right: 1px solid var(--line); }

.hero-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 28px; align-items: start; position: relative; }
.hero-copy { padding-top: 24px; }
.hero-copy p { font-size: 1.02rem; max-width: 440px; }
.hero-actions { display: flex; margin-top: 26px; margin-bottom: 30px; }

.hero-stats { display: flex; gap: 32px; padding-top: 18px; border-top: 1px solid var(--line-strong); }
.hero-stats .stat-num { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; color: var(--lichen-dark); }
.hero-stats .stat-label { font-family: var(--font-label); font-size: 0.68rem; letter-spacing: 0.5px; color: var(--ink-muted); text-transform: uppercase; }

.hero-media { position: relative; }
.hero-media .ref-tag { position: absolute; top: -22px; left: 0; font-family: var(--font-label); font-size: 0.72rem; font-weight: 700; color: var(--lichen-dark); letter-spacing: 1px; }
.hero-media img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
.hero-media .caption-tag {
  background: var(--spruce);
  color: var(--cream);
  padding: 10px 14px;
  font-family: var(--font-label);
  font-size: 0.72rem;
  letter-spacing: 0.5px;
}

.page-hero { background: var(--cream); padding: 52px 0 44px; border-bottom: 1px solid var(--line-strong); }
.page-hero h1 { max-width: 720px; }
.page-hero p.lead { font-size: 1.02rem; max-width: 620px; color: var(--ink-muted); }
.breadcrumb { font-family: var(--font-label); font-size: 0.78rem; letter-spacing: 0.3px; color: var(--ink-muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--ink-muted); }
.breadcrumb a:hover { color: var(--lichen-dark); }

/* =========================================================
   GRID CELLS — replaces rounded shadow cards with bordered
   architectural cells and sheet-reference labels
   ========================================================= */
.grid { display: grid; gap: 0; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.cell {
  background: var(--white);
  border: 1px solid var(--line-strong);
  margin-left: -1px;
  margin-top: -1px;
  padding: 30px 26px;
  transition: background 0.15s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.cell:hover { background: var(--paper); }
.cell .cell-ref { font-family: var(--font-label); font-size: 0.72rem; font-weight: 700; color: var(--lichen-dark); letter-spacing: 1px; margin-bottom: 14px; }
.cell h3 { margin-bottom: 10px; font-size: 1.1rem; }
.cell p { font-size: 0.94rem; flex-grow: 1; }
.cell .cell-link {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.3px;
  color: var(--spruce);
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
.cell:hover .cell-link { color: var(--lichen-dark); }
.cell .cell-link svg { width: 13px; height: 13px; }

/* Reasons list — lettered grid refs instead of numbered circles */
.reasons-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.reason-cell { border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); padding: 26px 24px; }
.reason-cell .cell-ref { font-family: var(--font-label); font-size: 0.72rem; font-weight: 700; color: var(--lichen-dark); letter-spacing: 1px; margin-bottom: 10px; }
.reason-cell h4 { margin-bottom: 6px; font-size: 1rem; font-family: var(--font-display); color: var(--spruce); }
.reason-cell p { margin: 0; font-size: 0.92rem; }

/* Transport-mode strip */
.mode-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.mode-strip a { background: var(--white); border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); padding: 26px 22px; display: flex; flex-direction: column; gap: 12px; transition: background 0.15s ease; }
.mode-strip a:hover { background: var(--paper); }
.mode-strip .cell-ref { font-family: var(--font-label); color: var(--lichen-dark); font-weight: 700; letter-spacing: 1px; font-size: 0.72rem; }
.mode-strip h4 { margin: 0; font-size: 1.02rem; }
.mode-strip p { font-size: 0.88rem; margin: 0; }

/* Process phases — lettered, not numbered, since the grid
   coordinate system already carries the sequencing logic */
.phases { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.phase-cell { border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); padding: 26px 22px; position: relative; }
.phase-cell .phase-letter { font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; color: var(--lichen); display: block; margin-bottom: 12px; }
.phase-cell h4 { margin-bottom: 8px; font-size: 1rem; }
.phase-cell p { font-size: 0.9rem; margin: 0; }

/* Industries */
.industry-cell { position: relative; overflow: hidden; aspect-ratio: 4/3; border: 1px solid var(--line-strong); }
.industry-cell img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.92); transition: transform 0.3s ease; }
.industry-cell:hover img { transform: scale(1.04); }
.industry-cell .label {
  position: absolute; left: 0; top: 0;
  background: var(--spruce);
  color: var(--cream);
  padding: 8px 14px;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.4px;
}

/* CTA band */
.cta-band { background: var(--lichen); color: var(--spruce); padding: 52px 0; }
.cta-band h2 { color: var(--spruce); margin-bottom: 6px; }
.cta-band p { color: var(--spruce); opacity: 0.85; margin-bottom: 0; }
.cta-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-band .btn-outline-light { border-color: var(--spruce); color: var(--spruce); }
.cta-band .btn-outline-light:hover { background: var(--spruce); color: var(--cream); }
.cta-band .btn-solid-dark { background: var(--spruce); color: var(--cream); }
.cta-band .btn-solid-dark:hover { background: var(--spruce-light); }

/* Service page layout */
.service-detail-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 0; border: 1px solid var(--line-strong); }
.service-detail-main { padding: 40px; border-right: 1px solid var(--line-strong); }
.include-list li, .use-case-list li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-label);
  font-size: 0.92rem;
  color: var(--ink);
}
.include-list li:last-child, .use-case-list li:last-child { border-bottom: none; }
.include-list li svg, .use-case-list li svg { flex-shrink: 0; width: 16px; height: 16px; stroke: var(--lichen-dark); margin-top: 3px; }

.side-panel { background: var(--paper); padding: 32px 28px; position: sticky; top: 96px; }
.side-panel h4 { margin-bottom: 14px; font-size: 1rem; }
.side-panel ul li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 0.92rem; font-family: var(--font-label); }
.side-panel ul li:last-child { border-bottom: none; }
.side-panel ul li a:hover { color: var(--lichen-dark); }
.side-panel .btn { margin-top: 18px; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--line-strong); }
.faq-question {
  width: 100%; text-align: left; background: none; border: none;
  padding: 22px 0; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--spruce);
}
.faq-question .icon { flex-shrink: 0; width: 20px; height: 20px; position: relative; }
.faq-question .icon::before, .faq-question .icon::after { content: ""; position: absolute; background: var(--lichen-dark); transition: transform 0.2s ease; }
.faq-question .icon::before { width: 100%; height: 2px; top: 9px; left: 0; }
.faq-question .icon::after { width: 2px; height: 100%; top: 0; left: 9px; }
.faq-item.is-open .faq-question .icon::after { transform: scaleY(0); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-item.is-open .faq-answer { max-height: 600px; }
.faq-answer p { padding-bottom: 22px; margin: 0; font-family: var(--font-body); }

/* Forms */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-family: var(--font-label); font-weight: 700; font-size: 0.8rem; color: var(--spruce); letter-spacing: 0.2px; }
.form-field input, .form-field select, .form-field textarea {
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: var(--font-label);
  font-size: 0.92rem;
  background: var(--white);
  color: var(--ink);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: 2px solid var(--lichen); outline-offset: 1px; border-color: var(--lichen-dark); }
.form-field input.has-error, .form-field select.has-error, .form-field textarea.has-error { border-color: var(--error); }
.field-error { color: var(--error); font-size: 0.78rem; min-height: 1em; font-family: var(--font-label); }
.form-status { margin-top: 18px; padding: 14px 16px; font-size: 0.9rem; display: none; font-family: var(--font-label); }
.form-status:not(:empty) { display: block; }
.form-status--info { background: var(--cream); color: var(--spruce); }
.form-status--success { background: #E1EBE0; color: var(--success); }
.form-status--error { background: #F3E2DE; color: var(--error); }

.form-card { background: var(--white); border: 1px solid var(--line-strong); padding: 32px; }

/* Contact page layout */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 0; border: 1px solid var(--line-strong); }
.contact-info-panel { padding: 32px; border-right: 1px solid var(--line-strong); }
.contact-info-list li { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); font-family: var(--font-label); }
.contact-info-list li:last-child { border-bottom: none; }
.contact-info-list svg { width: 18px; height: 18px; stroke: var(--lichen-dark); flex-shrink: 0; margin-top: 2px; }
.contact-info-list h4 { margin-bottom: 4px; font-size: 0.92rem; font-family: var(--font-display); }
.contact-info-list p { margin: 0; font-size: 0.92rem; font-family: var(--font-body); }
.map-frame { border-top: 1px solid var(--line-strong); }
.map-frame iframe { display: block; width: 100%; height: 260px; border: 0; }

/* Legal pages */
.legal-content h2 { margin-top: 38px; font-size: 1.3rem; }
.legal-content h2:first-child { margin-top: 0; }
.legal-content ul { list-style: disc; padding-left: 22px; margin-bottom: 16px; }
.legal-content ul li { margin-bottom: 8px; color: var(--ink-muted); }
.legal-content { max-width: 800px; }
.updated-note { font-family: var(--font-label); font-size: 0.82rem; color: var(--ink-muted); letter-spacing: 0.3px; margin-bottom: 32px; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer { background: var(--spruce); color: #C7D2C9; padding: 64px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 0; border-top: 1px solid rgba(237,230,214,0.18); margin-bottom: 40px; }
.footer-brand { padding: 28px 24px 28px 0; }
.footer-brand img { height: 30px; margin-bottom: 16px; }
.footer-brand p { color: #A9B8AC; font-size: 0.9rem; max-width: 280px; }
.footer-col { padding: 28px 24px; border-left: 1px solid rgba(237,230,214,0.18); }
.footer-col h4 { color: var(--cream); font-family: var(--font-label); font-size: 0.78rem; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col a { color: #C7D2C9; font-size: 0.9rem; font-family: var(--font-label); }
.footer-col a:hover { color: var(--lichen); }
.footer-col p { color: #C7D2C9; font-size: 0.9rem; margin-bottom: 9px; font-family: var(--font-label); }
.footer-bottom { border-top: 1px solid rgba(237,230,214,0.18); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.82rem; color: #8DA091; font-family: var(--font-label); }
.footer-bottom a { color: #8DA091; }
.footer-bottom a:hover { color: var(--lichen); }
.footer-legal { display: flex; gap: 20px; flex-wrap: wrap; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { order: -1; max-width: 320px; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .reasons-grid { grid-template-columns: 1fr; }
  .mode-strip { grid-template-columns: repeat(2, 1fr); }
  .phases { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .service-detail-grid { grid-template-columns: 1fr; }
  .service-detail-main { border-right: none; border-bottom: 1px solid var(--line-strong); }
  .side-panel { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-info-panel { border-right: none; border-bottom: 1px solid var(--line-strong); }
}

@media (max-width: 720px) {
  .site-nav {
    position: fixed; top: 65px; left: 0; right: 0; bottom: 0;
    background: var(--cream);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
    padding: 20px 0;
    border-top: 1px solid var(--line-strong);
  }
  .site-nav.is-open { transform: translateX(0); }
  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 0; padding: 0 24px; }
  .site-nav ul li { width: 100%; border-bottom: 1px solid var(--line); }
  .site-nav a { display: block; padding: 16px 0; }
  .nav-toggle { display: flex; }
  .header-actions .phone-link { display: none; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .mode-strip { grid-template-columns: 1fr; }
  .phases { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-col, .footer-brand { border-left: none; padding: 20px 0; border-bottom: 1px solid rgba(237,230,214,0.18); }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band-inner { flex-direction: column; align-items: flex-start; }
  .section { padding: 52px 0; }
  .hero-grid-overlay { display: none; }
}