/* ECTP 2023 — light redesign, flex layout */
:root {
  --c-deep: #0a3d5c;
  --c-primary: #0089cb;
  --c-accent: #00c5dc;
  --c-green: #3f7652;
  --c-ink: #1a2a33;
  --c-muted: #5a6b75;
  --c-line: #d5e3ea;
  --c-paper: #f4f8fa;
  --c-white: #ffffff;
  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Raleway", "Trebuchet MS", sans-serif;
  --wrap: 1120px;
  --header-h: 72px;
  --radius: 2px;
  --ease: 0.22s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--c-ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(0, 197, 220, 0.14), transparent 60%),
    radial-gradient(900px 400px at 100% 0%, rgba(0, 137, 203, 0.12), transparent 55%),
    linear-gradient(180deg, #edf5f8 0%, var(--c-paper) 40%, #e8f1f4 100%);
  min-height: 100vh;
}

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

a {
  color: var(--c-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color var(--ease);
}

a:hover {
  color: var(--c-deep);
}

.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.wrap {
  width: min(100% - 2rem, var(--wrap));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  margin-right: auto;
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.55rem;
  letter-spacing: 0.06em;
  color: var(--c-white);
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  padding: 0.35rem 0.55rem;
  line-height: 1;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-year {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--c-deep);
  letter-spacing: 0.04em;
}

.brand-place {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.header-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--c-primary);
  color: var(--c-primary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background var(--ease), color var(--ease);
}

.header-btn:hover {
  background: var(--c-primary);
  color: var(--c-white);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--c-line);
  background: var(--c-white);
  padding: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--c-deep);
  transition: transform var(--ease), opacity var(--ease);
}

body.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}
body.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Nav */
.site-nav {
  background: var(--c-deep);
  border-bottom: 3px solid var(--c-accent);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0;
}

.nav-list > li {
  position: relative;
  display: flex;
  align-items: stretch;
}

.nav-list > li > a,
.nav-list > li > .nav-parent,
.nav-list > li > .nav-parent-link {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 0.75rem;
  color: #e8f4f8;
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 0;
  background: transparent;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}

.nav-list > li > a:hover,
.nav-list > li > .nav-parent:hover,
.nav-list > li > .nav-parent-link:hover,
.nav-list > li.open > .nav-parent {
  color: var(--c-white);
  background: rgba(0, 197, 220, 0.18);
}

.has-dropdown {
  flex-wrap: nowrap;
}

.has-dropdown .nav-parent-link {
  padding-right: 0.2rem;
}

.has-dropdown .nav-parent {
  padding-left: 0.25rem;
  padding-right: 0.55rem;
  color: #e8f4f8;
}

.dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 230px;
  margin: 0;
  padding: 0.4rem 0;
  list-style: none;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  box-shadow: 0 12px 28px rgba(10, 61, 92, 0.12);
  z-index: 60;
}

.has-dropdown:hover > .dropdown,
.has-dropdown.open > .dropdown,
.has-dropdown:focus-within > .dropdown {
  display: block;
}

.dropdown a {
  display: block;
  padding: 0.55rem 1rem;
  color: var(--c-ink);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.dropdown a:hover {
  background: rgba(0, 137, 203, 0.08);
  color: var(--c-primary);
}

/* Main */
.site-main {
  flex: 1;
  padding-bottom: 3rem;
}

.page-header {
  padding: 2.2rem 0 1rem;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 1.75rem;
  animation: rise 0.55s ease both;
}

.page-header h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--c-deep);
  line-height: 1.15;
}

.page-content {
  animation: rise 0.65s ease 0.05s both;
}

.page-content h1,
.page-content h2,
.page-content h3,
.page-content h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--c-deep);
  line-height: 1.25;
  margin: 1.6rem 0 0.6rem;
}

.page-content h2 {
  font-size: 1.35rem;
  text-transform: uppercase;
  padding-bottom: 0.35rem;
  border-bottom: 2px solid rgba(0, 197, 220, 0.35);
}

.page-content h3 {
  font-size: 1.15rem;
  color: var(--c-primary);
}

.page-content p {
  margin: 0 0 0.85rem;
}

.page-content .meta-line {
  margin-bottom: 0.25rem;
}

.page-content ul,
.page-content ol {
  margin: 0 0 1rem 1.25rem;
  padding: 0;
}

.page-content li {
  margin-bottom: 0.35rem;
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

.page-content th,
.page-content td {
  border: 1px solid var(--c-line);
  padding: 0.55rem 0.7rem;
  text-align: left;
  vertical-align: top;
}

.page-content th {
  background: rgba(0, 137, 203, 0.1);
  font-weight: 600;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  color: var(--c-white);
  background:
    linear-gradient(120deg, rgba(10, 61, 92, 0.92) 0%, rgba(0, 137, 203, 0.78) 55%, rgba(0, 197, 220, 0.65) 100%),
    repeating-linear-gradient(
      -18deg,
      transparent,
      transparent 12px,
      rgba(255, 255, 255, 0.03) 12px,
      rgba(255, 255, 255, 0.03) 24px
    ),
    linear-gradient(180deg, #0a3d5c, #0089cb);
  margin-bottom: 2.5rem;
}

.hero-inner {
  min-height: clamp(320px, 52vh, 480px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3.5rem 0 3rem;
  animation: rise 0.7s ease both;
}

.hero-kicker {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.9;
}

.hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(3rem, 9vw, 5.5rem);
  letter-spacing: 0.04em;
  line-height: 0.95;
}

.hero-sub {
  margin: 0.9rem 0 0;
  max-width: 28ch;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 500;
  line-height: 1.4;
  opacity: 0.95;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--c-white);
  color: var(--c-deep);
}

.btn-primary:hover {
  background: #e8f8fb;
  color: var(--c-deep);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.65);
  color: var(--c-white);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--c-white);
}

.home-content {
  max-width: 68ch;
}

.home-links {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--c-line);
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--c-deep);
  color: #d7e7ef;
  padding: 2.5rem 0 1.5rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem 3rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand .brand-mark {
  display: inline-block;
  margin-bottom: 0.75rem;
}

.footer-brand p,
.footer-contact p {
  margin: 0 0 0.6rem;
  font-size: 0.92rem;
  line-height: 1.55;
}

.site-footer a {
  color: var(--c-accent);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-left: auto;
}

.footer-links a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--c-white);
}

.footer-bottom {
  padding-top: 1rem;
  font-size: 0.85rem;
  color: rgba(215, 231, 239, 0.75);
}

.footer-bottom p {
  margin: 0 0 0.75rem;
}

.romlifooter {
  margin-top: 0.75rem;
}

.romlifooter img {
  max-width: 160px;
  object-fit: contain;
}

/* Blog list */
.blog-container {
  width: 100%;
}

.blog-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.blog-card {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--c-line);
  padding: 1.25rem 1.4rem;
  transition: border-color var(--ease), transform var(--ease);
}

.blog-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-2px);
}

.blog-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
}

.blog-title a {
  text-decoration: none;
  color: var(--c-deep);
}

.blog-title a:hover {
  color: var(--c-primary);
}

.blog-preview p {
  margin: 0;
  color: var(--c-muted);
}

/* Article shell */
.romlicontainer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 0 2rem;
}

.romlicontainer p {
  margin: 0 0 12px;
}

.romlicontainer h1,
.romlicontainer h2,
.romlicontainer h3,
.romlicontainer h4,
.romlicontainer h5,
.romlicontainer h6 {
  margin: 16px 0 8px;
  line-height: 1.3;
  font-family: var(--font-display);
  color: var(--c-deep);
}

.romlicontainer h1 { font-size: 24px; }
.romlicontainer h2 { font-size: 20px; }
.romlicontainer h3 { font-size: 18px; }
.romlicontainer h4 { font-size: 16px; }

.romlicontainer a {
  color: #0b6cff;
  text-decoration: none;
}

.romlicontainer a:hover {
  text-decoration: underline;
}

.romlicontainer ul,
.romlicontainer ol {
  margin: 0 0 12px 20px;
  padding: 0;
}

.romlicontainer li {
  margin-bottom: 4px;
}

.romlicontainer img {
  max-width: 100%;
  height: auto;
  display: block;
}

.romlicontainer table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 13px;
}

.romlicontainer th,
.romlicontainer td {
  border: 1px solid #ddd;
  padding: 6px 8px;
  text-align: left;
  vertical-align: top;
}

.romlicontainer th {
  background: #f5f5f5;
  font-weight: 600;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    border-bottom: 0;
  }

  body.nav-open .site-nav {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    padding: 0.5rem 0 1rem;
  }

  .nav-list > li {
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-list > li > a,
  .nav-list > li > .nav-parent,
  .nav-list > li > .nav-parent-link {
    flex: 1;
    padding: 0.85rem 0.25rem;
  }

  .dropdown {
    position: static;
    display: none;
    width: 100%;
    min-width: 0;
    box-shadow: none;
    border: 0;
    background: rgba(0, 0, 0, 0.15);
  }

  .has-dropdown.open > .dropdown {
    display: block;
  }

  .has-dropdown:hover > .dropdown {
    display: none;
  }

  .has-dropdown.open:hover > .dropdown,
  .has-dropdown.open > .dropdown {
    display: block;
  }

  .dropdown a {
    color: #e8f4f8;
    padding-left: 1rem;
  }

  .dropdown a:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--c-white);
  }

  .footer-links {
    margin-left: 0;
  }
}

@media (max-width: 560px) {
  .header-btn {
    display: none;
  }

  .hero-inner {
    min-height: 300px;
    padding: 2.5rem 0 2.25rem;
  }
}