* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --navy: #071b3a;
  --blue: #0b63a3;
  --text: #10243f;
  --muted: #4f5f73;
  --line: #dbe3ec;
  --soft: #f5f8fb;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.62;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(1320px, calc(100% - 64px));
  margin: 0 auto;
}

.content-wide {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--line);
}

.navbar {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
}

.brand-mark {
  width: 56px;
  height: 56px;
  border: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
  flex: 0 0 auto;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text strong {
  display: block;
  color: var(--navy);
  font-size: 0.96rem;
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.brand-text span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--navy);
  font-weight: 700;
  font-size: 0.94rem;
  padding: 22px 0 19px;
  border-bottom: 3px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.nav-links a:hover,
.nav-links a.active-link {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px !important;
  border: 1px solid var(--navy) !important;
  background: var(--navy);
  color: #fff !important;
}

.nav-cta:hover,
.nav-cta.active-link {
  background: var(--blue);
  border-color: var(--blue) !important;
  color: #fff !important;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 23px;
  height: 2px;
  margin: 5px auto;
  background: var(--navy);
}

.hero,
.page-hero {
  position: relative;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(7, 27, 58, 0.96) 0%, rgba(7, 27, 58, 0.86) 36%, rgba(7, 27, 58, 0.58) 62%, rgba(7, 27, 58, 0.20) 100%),
    url('assets/aviation-hero-background.png') center right / cover no-repeat;
}

.hero {
  padding: 88px 0 82px;
  min-height: 500px;
  display: flex;
  align-items: center;
}

.page-hero {
  padding: 62px 0 58px;
}

.hero-layout,
.page-title {
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
}

.eriva-page-hero {
  background-color: #071b3a;
  background-image:
    linear-gradient(90deg, rgba(7, 27, 58, 0.96) 0%, rgba(7, 27, 58, 0.82) 42%, rgba(7, 27, 58, 0.34) 74%, rgba(7, 27, 58, 0.18) 100%),
    url('assets/eriva-plane-original.png');
  background-position: center left, right center;
  background-size: cover, auto 100%;
  background-repeat: no-repeat, no-repeat;
}

.koulutukset-page-hero {
  background:
    linear-gradient(90deg, rgba(7, 27, 58, 0.96) 0%, rgba(7, 27, 58, 0.84) 40%, rgba(7, 27, 58, 0.44) 72%, rgba(7, 27, 58, 0.12) 100%),
    url('assets/koulutukset-hero-background.png') center center / cover no-repeat;
}

.eyebrow,
.section-label {
  display: block;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.hero .eyebrow,
.page-hero .eyebrow {
  color: #dcecff;
}

h1,
h2,
h3,
h4 {
  color: var(--navy);
  line-height: 1.14;
  margin-bottom: 16px;
}

.hero h1,
.page-hero h1 {
  color: #fff;
}

h1 {
  font-size: clamp(2.5rem, 4.6vw, 4.4rem);
  letter-spacing: -0.038em;
  max-width: 980px;
}

.page-hero h1 {
  font-size: clamp(2.2rem, 3.8vw, 3.6rem);
  overflow-wrap: anywhere;
  hyphens: auto;
}

h2 {
  font-size: clamp(1.55rem, 2.4vw, 2.25rem);
  letter-spacing: -0.02em;
  margin-top: 4px;
}

h3 {
  font-size: 1.16rem;
  margin-top: 6px;
}

p {
  margin-bottom: 14px;
  color: var(--muted);
  max-width: 980px;
}

.lead {
  font-size: clamp(1.05rem, 1.35vw, 1.18rem);
  line-height: 1.65;
  max-width: 960px;
}

.hero .lead,
.page-hero .lead,
.hero p,
.page-hero p {
  color: #eef6ff;
}

.lead.dark {
  color: var(--text);
}

.button-row,
.form-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 20px;
  border: 1px solid transparent;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.btn-primary {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.btn-primary:hover {
  background: var(--blue);
  border-color: var(--blue);
}

.btn-secondary {
  background: #fff;
  border-color: var(--line);
  color: var(--navy);
}

.hero .btn-secondary,
.page-hero .btn-secondary {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.76);
}

.hero .btn-secondary:hover,
.page-hero .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.section {
  padding: 64px 0;
}

.section-tight {
  padding: 42px 0;
}

.section-muted {
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.content-section {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.content-section:first-of-type {
  margin-top: 34px;
}

ul,
ol {
  margin: 0 0 18px 1.25rem;
  color: var(--muted);
  max-width: 1040px;
}

li {
  margin-bottom: 8px;
}

li strong {
  color: var(--text);
}

.term-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  list-style-position: outside;
  max-width: 1160px;
}

.single-column-list li {
  max-width: 1120px;
}

.process-list {
  border-top: 1px solid var(--line);
  margin-top: 28px;
}

.process-step {
  display: grid;
  grid-template-columns: minmax(240px, 0.32fr) minmax(0, 1fr);
  gap: 34px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.process-step h3 {
  margin: 0;
}

.two-column-text {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 54px;
  align-items: start;
}

.partner-list {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.partner-link {
  display: inline-flex;
  align-items: center;
  padding: 18px 0;
  color: var(--navy);
  font-weight: 800;
}

.partner-logo-link {
  min-height: 72px;
}

.partner-logo {
  width: min(220px, 100%);
  height: auto;
}

.school-details {
  margin-top: 34px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.school-details summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 0;
  color: var(--navy);
  font-size: 1.25rem;
  font-weight: 800;
  border-bottom: 1px solid var(--line);
}

.school-details summary::-webkit-details-marker {
  display: none;
}

.school-details summary::after {
  content: "+";
  float: right;
  color: var(--blue);
  font-weight: 900;
}

.school-details[open] summary::after {
  content: "-";
}

.details-body {
  padding: 34px 0 4px;
}

.program-stage {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.program-stage h3 {
  color: var(--navy);
}

.program-detail-page {
  border-top: 1px solid var(--line);
  padding-top: 34px;
}

.school-card-simple {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
  margin-top: 38px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.school-card-simple h2 {
  margin-bottom: 12px;
}

.school-card-content {
  max-width: 980px;
}

.school-card-action {
  display: flex;
  justify-content: flex-end;
}

.external-link-box {
  margin-top: 42px;
  padding: 26px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.external-link-box h2 {
  font-size: clamp(1.35rem, 2.2vw, 2rem);
}

.external-link-box p {
  max-width: 820px;
}

.payment-note {
  margin-top: 28px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.65);
}

.payment-note h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.payment-note p {
  font-size: 0.97rem;
  line-height: 1.58;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
  gap: 44px;
  align-items: start;
  max-width: 1180px;
}

.contact-card,
.form-card {
  border: 1px solid var(--line);
  padding: 26px;
  background: #fff;
}

.contact-method {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.contact-method span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 3px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-group label {
  display: block;
  color: var(--navy);
  font-weight: 800;
  margin-bottom: 7px;
}

input,
textarea,
select {
  width: 100%;
  min-height: 46px;
  padding: 12px 13px;
  border: 1px solid #bcc9d7;
  background: #fff;
  color: var(--text);
}

textarea {
  min-height: 150px;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(11, 99, 163, 0.18);
  border-color: var(--blue);
}

.form-note {
  margin-top: 16px;
  font-size: 0.94rem;
}

.btn[disabled] {
  cursor: not-allowed;
  opacity: 0.52;
}

.footer {
  padding: 44px 0;
  background: var(--navy);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.75fr 1fr;
  gap: 32px;
}

.footer h3,
.footer h4 {
  color: #fff;
}

.footer p,
.footer li,
.footer a {
  color: #dce7f2;
}

.footer ul {
  list-style: none;
  margin: 0;
  display: grid;
  gap: 8px;
}

.footer a:hover {
  color: #fff;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-logo img {
  width: 58px;
  height: 58px;
  object-fit: contain;
  background: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: #b9c8d8;
  font-size: 0.9rem;
}

.reveal,
.visible-on-load {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

@media (max-width: 1100px) {
  .container {
    width: min(100% - 44px, 1320px);
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 22px 20px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-cta {
    margin-top: 10px;
    text-align: center;
  }

  .process-step,
  .two-column-text,
  .contact-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .process-step {
    gap: 12px;
  }

  .school-card-simple {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .school-card-action {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, 1320px);
  }

  .navbar {
    min-height: 64px;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    width: 50px;
    height: 50px;
  }

  .brand-text strong {
    font-size: 0.88rem;
  }

  .brand-text span {
    display: none;
  }

  .hero,
  .page-hero {
    padding: 52px 0;
    background:
      linear-gradient(90deg, rgba(7, 27, 58, 0.94) 0%, rgba(7, 27, 58, 0.82) 48%, rgba(7, 27, 58, 0.38) 100%),
      url('assets/aviation-hero-background.png') center right / cover no-repeat;
  }

  .eriva-page-hero {
    background-color: #071b3a;
    background-image:
      linear-gradient(90deg, rgba(7, 27, 58, 0.96) 0%, rgba(7, 27, 58, 0.82) 62%, rgba(7, 27, 58, 0.42) 100%),
      url('assets/eriva-plane-original.png');
    background-position: center left, right center;
    background-size: cover, auto 100%;
    background-repeat: no-repeat, no-repeat;
  }

  .koulutukset-page-hero {
    background:
      linear-gradient(90deg, rgba(7, 27, 58, 0.95) 0%, rgba(7, 27, 58, 0.84) 50%, rgba(7, 27, 58, 0.40) 100%),
      url('assets/koulutukset-hero-background.png') center center / cover no-repeat;
  }

  h1 {
    font-size: 2rem;
    letter-spacing: -0.02em;
  }

  .page-hero h1 {
    font-size: 1.82rem;
    letter-spacing: -0.02em;
    line-height: 1.12;
  }

  h2 {
    font-size: 1.55rem;
  }

  .section {
    padding: 48px 0;
  }

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

  .contact-card,
  .form-card {
    padding: 20px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}