/*
 * ECS – Eazy Calendar Systems Oy
 * Design: Nordic Precision Engineering
 * Fonts: Space Grotesk (display), IBM Plex Sans (body), IBM Plex Mono (labels)
 * Palette: #F7F8FA bg | #0D1B2A navy | #1A56DB accent | #64748B steel | #00B4D8 cyan
 */

/* ── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #F7F8FA;
  --navy:       #0D1B2A;
  --navy-mid:   #162336;
  --navy-light: #1E3050;
  --accent:     #1A56DB;
  --accent-2:   #00B4D8;
  --steel:      #64748B;
  --border:     #E2E8F0;
  --white:      #FFFFFF;
  --text:       #1E293B;
  --text-muted: #64748B;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'IBM Plex Sans', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;
  --max-w:      1200px;
  --radius:     4px;
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Typography ───────────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--navy);
}

.label-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-block;
  margin-bottom: 0.75rem;
}

.label-tag--light { color: var(--accent-2); }

/* ── Layout Helpers ───────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 6rem 0; }
.section--dark { background: var(--navy); }
.section--mid  { background: var(--navy-mid); }
.section--alt  { background: #EEF2F7; }

/* ── Section Divider ──────────────────────────────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.divider__line { flex: 1; height: 1px; background: var(--border); }
.divider__diamond {
  width: 8px; height: 8px;
  background: var(--accent);
  transform: rotate(45deg);
  flex-shrink: 0;
}
.divider--light .divider__line { background: rgba(255,255,255,0.15); }
.divider--light .divider__diamond { background: var(--accent-2); }

/* ── Scroll Animation ─────────────────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up.delay-1 { transition-delay: 0.1s; }
.fade-up.delay-2 { transition-delay: 0.2s; }
.fade-up.delay-3 { transition-delay: 0.3s; }
.fade-up.delay-4 { transition-delay: 0.4s; }
.fade-up.delay-5 { transition-delay: 0.5s; }

/* ── Navigation ───────────────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: rgba(13, 27, 42, 0.97);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--accent-2); }

.nav-links {
  display: flex;
  gap: 2.25rem;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  position: relative;
  padding-bottom: 3px;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent-2);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: var(--accent);
  color: var(--white) !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: var(--radius);
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}
.nav-cta:hover { background: #1648c0 !important; }
.nav-cta::after { display: none !important; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  transition: var(--transition);
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,27,42,0.92) 40%, rgba(26,86,219,0.15) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding: 8rem 0 5rem;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 32px; height: 1px;
  background: var(--accent-2);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.hero-title em {
  font-style: normal;
  color: var(--accent-2);
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.72);
  max-width: 580px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}
.btn--primary {
  background: var(--accent);
  color: var(--white);
}
.btn--primary:hover {
  background: #1648c0;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,86,219,0.4);
}
.btn--outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
}
.btn--outline:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}
.btn--outline-dark {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn--outline-dark:hover {
  background: var(--accent);
  color: var(--white);
}

.btn-arrow {
  transition: transform var(--transition);
}
.btn:hover .btn-arrow { transform: translateX(4px); }

.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 3rem;
  padding: 2rem 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 1rem;
}
.hero-stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
}
.hero-stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-top: 0.2rem;
}

/* ── About ────────────────────────────────────────────────────────────────── */
#about .about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

#about .about-text h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 1.25rem;
}

#about .about-text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 0.975rem;
}

.competency-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 1.75rem;
}

.competency-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--text);
}
.competency-item::before {
  content: '◆';
  color: var(--accent);
  font-size: 0.5rem;
  margin-top: 0.35rem;
  flex-shrink: 0;
}

.about-visual {
  position: relative;
}
.about-visual img {
  width: 100%;
  border-radius: 2px;
  box-shadow: 0 24px 60px rgba(13,27,42,0.18);
}
.about-badge {
  position: absolute;
  bottom: -1.5rem;
  left: -1.5rem;
  background: var(--accent);
  color: var(--white);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  box-shadow: 0 8px 24px rgba(26,86,219,0.35);
}
.about-badge-num {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
}
.about-badge-text {
  font-size: 0.75rem;
  opacity: 0.85;
  margin-top: 0.25rem;
}

/* ── Services ─────────────────────────────────────────────────────────────── */
#services {
  position: relative;
  overflow: hidden;
}
.services-bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/services-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

.services-header {
  text-align: center;
  margin-bottom: 4rem;
}
.services-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--white);
  margin-bottom: 0.75rem;
}
.services-header p {
  color: rgba(255,255,255,0.6);
  max-width: 560px;
  margin: 0 auto;
  font-size: 0.975rem;
}

.services-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.service-card:hover {
  border-color: rgba(26,86,219,0.5);
  background: rgba(26,86,219,0.08);
  transform: translateY(-3px);
}

.service-icon {
  width: 44px; height: 44px;
  background: rgba(26,86,219,0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.service-icon svg { width: 22px; height: 22px; stroke: var(--accent-2); }

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 0.75rem;
}
.service-card p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
}

.service-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-2);
  border: 1px solid rgba(0,180,216,0.3);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  margin-top: 1rem;
}

/* ── TRL Ladder ───────────────────────────────────────────────────────────── */
#trl .trl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

#trl h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
  color: var(--white);
}
#trl > .container > .trl-grid > .trl-text > p {
  color: rgba(255,255,255,0.6);
  margin-bottom: 2rem;
  font-size: 0.975rem;
}

.trl-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.trl-step {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: background var(--transition);
}
.trl-step:last-child { border-bottom: none; }

.trl-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--accent-2);
  background: rgba(0,180,216,0.1);
  border: 1px solid rgba(0,180,216,0.25);
  padding: 0.25rem 0.5rem;
  border-radius: 2px;
  flex-shrink: 0;
  margin-top: 0.1rem;
  min-width: 56px;
  text-align: center;
}

.trl-step-text h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--white);
  margin-bottom: 0.2rem;
}
.trl-step-text p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

.trl-visual img {
  width: 100%;
  border-radius: 2px;
  opacity: 0.9;
}

/* ── Experience ───────────────────────────────────────────────────────────── */
#experience h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
}
#experience .exp-intro {
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 3rem;
  font-size: 0.975rem;
}

.exp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.exp-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.exp-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(26,86,219,0.1);
  transform: translateY(-2px);
}
.exp-card h4 {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: var(--navy);
}
.exp-card p {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.exp-card-icon {
  width: 36px; height: 36px;
  background: #EEF2FF;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}
.exp-card-icon svg { width: 18px; height: 18px; stroke: var(--accent); }

/* ── Compliance ───────────────────────────────────────────────────────────── */
#compliance {
  background: var(--navy-mid);
}
#compliance h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--white);
  margin-bottom: 0.75rem;
}
#compliance .comp-intro {
  color: rgba(255,255,255,0.6);
  max-width: 560px;
  margin-bottom: 3rem;
  font-size: 0.975rem;
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}

.comp-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
  transition: border-color var(--transition), background var(--transition);
}
.comp-item:hover {
  border-color: rgba(0,180,216,0.4);
  background: rgba(0,180,216,0.06);
}
.comp-item svg {
  width: 28px; height: 28px;
  stroke: var(--accent-2);
  margin: 0 auto 0.75rem;
}
.comp-item p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.5;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

/* ── References ───────────────────────────────────────────────────────────── */
#references h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 0.75rem;
}
#references .ref-intro {
  color: var(--text-muted);
  max-width: 580px;
  margin-bottom: 3rem;
  font-size: 0.975rem;
}

.ref-placeholder {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text-muted);
}
.ref-placeholder svg {
  width: 40px; height: 40px;
  stroke: var(--border);
  margin: 0 auto 1rem;
}
.ref-placeholder h3 {
  font-size: 1rem;
  color: var(--steel);
  margin-bottom: 0.5rem;
}
.ref-placeholder p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ── Contact ──────────────────────────────────────────────────────────────── */
#contact {
  background: var(--navy);
}
#contact h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--white);
  margin-bottom: 0.75rem;
}
#contact .contact-intro {
  color: rgba(255,255,255,0.6);
  max-width: 500px;
  margin-bottom: 3rem;
  font-size: 0.975rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.contact-item svg {
  width: 20px; height: 20px;
  stroke: var(--accent-2);
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.contact-item-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 0.2rem;
}
.contact-item-value {
  font-size: 0.9rem;
  color: var(--white);
}
.contact-item-value a {
  color: var(--accent-2);
  transition: opacity var(--transition);
}
.contact-item-value a:hover { opacity: 0.8; }

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.875rem;
  padding: 0.7rem 1rem;
  transition: border-color var(--transition);
  outline: none;
  width: 100%;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.3); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--accent-2); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select option { background: var(--navy); color: var(--white); }

.form-submit {
  margin-top: 0.5rem;
}

/* ── Footer ───────────────────────────────────────────────────────────────── */
footer {
  background: #080F18;
  padding: 3rem 0 2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  margin-bottom: 1.5rem;
}

.footer-brand .nav-logo { font-size: 1.2rem; }
.footer-brand p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  margin-top: 0.5rem;
  max-width: 240px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 3rem;
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  font-size: 0.825rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 0.5rem;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: 0.775rem;
  color: rgba(255,255,255,0.3);
}

.footer-badges {
  display: flex;
  gap: 0.75rem;
}
.footer-badge {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
}

/* ── Mobile Nav ───────────────────────────────────────────────────────────── */
#mobile-menu {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: rgba(13,27,42,0.98);
  backdrop-filter: blur(8px);
  padding: 1.5rem 2rem;
  z-index: 999;
  flex-direction: column;
  gap: 1rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}
#mobile-menu.open { display: flex; }
#mobile-menu a {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.8);
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-family: var(--font-body);
}
#mobile-menu a:last-child { border-bottom: none; }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .compliance-grid { grid-template-columns: repeat(3, 1fr); }
  #about .about-grid { gap: 3rem; }
  #trl .trl-grid { gap: 3rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero-content { padding: 7rem 0 4rem; }
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }

  #about .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .about-badge { bottom: -1rem; left: 0; }

  .services-grid { grid-template-columns: 1fr; }

  #trl .trl-grid { grid-template-columns: 1fr; }
  .trl-visual { display: none; }

  .exp-grid { grid-template-columns: 1fr 1fr; }

  .compliance-grid { grid-template-columns: repeat(2, 1fr); }

  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; }
  .footer-links { flex-wrap: wrap; gap: 2rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .section { padding: 4rem 0; }
  .exp-grid { grid-template-columns: 1fr; }
  .compliance-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .competency-list { grid-template-columns: 1fr; }
}