/* === CSS RESET & NORMALIZE === */
html { box-sizing: border-box; }
*, *:before, *:after { box-sizing: inherit; margin: 0; padding: 0; border: 0; font: inherit; }
body, html { height: 100%; }
body { min-height: 100%; background: #fff; color: #203857; font-family: 'Roboto', Arial, sans-serif; font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s; }
ul { list-style: disc inside; }
h1, h2, h3, h4, h5, h6 { font-family: 'Montserrat', Arial, sans-serif; letter-spacing: -.02em; }

/* === BRAND & DESIGN SYSTEM COLORS === */
:root {
  --primary: #203857;
  --secondary: #35A29F;
  --accent: #E1E8ED;
  --electric-yellow: #ffe23f;
  --electric-cobalt: #3c43fe;
  --electric-pink: #FA176B;
  --electric-teal: #22E1D3;
  --background-main: #fff;
  --background-alt: #F7FAFF;
  --text-main: #203857;
  --text-invert: #fff;
  --shadow: 0 4px 18px rgba(32,56,87,0.06), 0 1.5px 6px rgba(53,162,159,0.09);
  --radius: 18px;
  --radius-sm: 10px;
  --transition: 0.23s cubic-bezier(.4,0,.2,1);
}

/* === TYPOGRAPHY === */
h1 { font-size: 2.5rem; font-weight: 700; margin-bottom: 16px; color: var(--electric-cobalt); letter-spacing: -1.5px; }
h2 { font-size: 2rem; font-weight: 700; margin-bottom: 16px; color: var(--primary); }
h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; color: var(--electric-pink); }
h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; color: var(--electric-cobalt); }
h5, h6 { font-size: 1rem; font-weight: 600; color: var(--primary); }
p, li { font-size: 1rem; color: var(--primary); letter-spacing: -.01em; }
ul { margin-left: 18px; margin-bottom: 20px; }
strong { font-weight: 700; }

/* === SPACING === */
.section { margin-bottom: 60px; padding: 40px 20px; }
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding-left: 18px; padding-right: 18px; }
.content-wrapper { display: flex; flex-direction: column; gap: 30px; }

/* === HEADER === */
header {
  background: var(--background-alt);
  box-shadow: 0 2px 16px rgba(53,162,159,0.06);
  position: sticky;
  top: 0;
  z-index: 102;
}
header .container {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 18px 0 14px 0;
  position: relative;
}
header img[alt="RadianceFlux"] {
  height: 44px;
}
.main-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  margin-left: 36px;
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 600;
}
.main-nav a {
  color: var(--primary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.main-nav a:hover, .main-nav a:focus {
  background: var(--electric-yellow);
  color: var(--electric-cobalt);
}
.btn-primary {
  margin-left: auto;
  background: linear-gradient(90deg, var(--electric-cobalt), var(--electric-pink) 88%);
  color: var(--text-invert);
  padding: 10px 32px;
  border-radius: var(--radius);
  font-weight: 900;
  letter-spacing: 1.2px;
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1.08rem;
  box-shadow: 0 3px 14px rgba(250,23,107,0.1);
  transition: transform .16s, box-shadow .3s, background .3s;
  border: none;
  cursor: pointer;
  outline: none;
  position: relative;
}
.btn-primary:hover, .btn-primary:focus {
  background: linear-gradient(90deg, var(--electric-pink), var(--electric-cobalt) 88%);
  transform: translateY(-2px) scale(1.055);
  box-shadow: 0 8px 26px rgba(250,23,107,0.17);
}
.btn-secondary {
  background: var(--electric-yellow);
  color: var(--primary);
  padding: 9px 26px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1rem;
  transition: background var(--transition), color var(--transition), box-shadow .26s;
  box-shadow: 0 3px 12px rgba(60,67,254,0.09);
  border: none;
  cursor: pointer;
  outline: none;
  margin-top: 12px;
}
.btn-secondary:hover, .btn-secondary:focus {
  background: var(--electric-cobalt);
  color: #fff;
  box-shadow: 0 8px 24px rgba(60,67,254,0.18);
}

.mobile-menu-toggle {
  display: none;
  background: var(--electric-pink);
  color: #fff;
  font-size: 2.1rem;
  border-radius: 50%;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  margin-left: 18px;
  transition: background var(--transition), color var(--transition);
  z-index: 125;
}
.mobile-menu-toggle:focus, .mobile-menu-toggle:hover {
  background: var(--electric-cobalt);
}

.mobile-menu {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #fff;
  transform: translateX(-105vw);
  visibility: hidden;
  opacity: 0;
  z-index: 9999;
  transition: transform .44s var(--transition), opacity .27s;
  box-shadow: 0 12px 32px rgba(60,67,254,0.12);
  padding: 24px 20px;
}
.mobile-menu.open {
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
}
.mobile-menu-close {
  background: var(--electric-yellow);
  color: var(--primary);
  border: none;
  font-size: 2rem;
  border-radius: 50%;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  display: flex;
  margin-bottom: 30px;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  z-index: 10002;
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  background: var(--electric-pink);
  color: #fff;
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 22px;
  width: 100vw;
  margin-left: 8px;
}
.mobile-nav a {
  color: var(--primary);
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1.19rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  transition: background var(--transition), color var(--transition);
}
.mobile-nav a:hover, .mobile-nav a:focus {
  background: var(--secondary);
  color: #fff;
}

/* === HERO SECTION === */
.hero-section {
  background: linear-gradient(99deg, var(--electric-yellow) 60%, var(--electric-teal) 180%);
  border-bottom-left-radius: 96px;
  border-bottom-right-radius: 24px;
  box-shadow: 0 14px 44px 0 rgba(53,162,159,0.13);
  margin-bottom: 60px;
  padding: 75px 0 54px 0 !important;
  position: relative;
  overflow: hidden;
}
.hero-section h1 {
  font-size: 2.8rem;
  color: var(--electric-cobalt);
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 900;
  line-height: 1.09;
  margin-bottom: 14px;
  text-shadow: 0 3px 16px rgba(250,23,107,0.11);
  letter-spacing: -2.0px;
}
.hero-section p {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: 28px;
  max-width: 620px;
}
.hero-section .btn-primary {
  margin-top: 14px;
  font-size: 1.11rem;
}

/* === FLEXBOX LAYOUT PATTERNS === */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  margin-bottom: 20px;
  position: relative;
}
.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
  margin-bottom: 20px;
  max-width: 530px;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 22px 22px 22px;
  min-width: 190px;
  flex: 1 1 210px;
}
.feature-item img { height: 44px; margin-bottom: 8px; }

.feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 20px;
  margin-top: 10px;
}
.service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 20px;
}
.service-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
  background: var(--background-alt);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 22px 22px 22px;
  min-width: 220px;
  flex: 1 1 260px;
}
.service-item img { height: 44px; margin-bottom: 8px; }

.news-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.news-list article {
  flex: 1 1 260px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 22px 22px 22px;
  margin-bottom: 20px;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.featured-articles ul { margin-left: 18px; }

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 19px;
  margin-bottom: 20px;
  flex: 1 1 230px;
}
.contact-details div {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.03rem;
}
.contact-details img { width: 26px; height: 26px; }

.map { flex: 2 1 330px; background: var(--background-alt); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; margin-bottom: 20px; }

.text-section { display: flex; flex-direction: column; gap: 15px; }

.cta-section {
  background: linear-gradient(114deg, var(--electric-cobalt) 48%, var(--electric-teal) 166%);
  color: #fff;
  padding: 45px 0 38px 0;
  box-shadow: 0 14px 44px 0 rgba(60,67,254,0.14);
  border-radius: 40px;
  margin-bottom: 0;
}
.cta-section .content-wrapper { align-items: center; text-align: center; }
.cta-section h2 { color: #fff; }
.cta-section .btn-primary {
  margin-top: 19px;
  box-shadow: 0 8px 38px rgba(34,225,211,0.22);
}

/* === TESTIMONIALS === */
.testimonial-card {
  background: #fff;
  border-left: 8px solid var(--electric-pink);
  color: var(--primary);
}
.testimonial-content p {
  font-size: 1.07rem;
  color: var(--primary);
}
.testimonial-meta {
  font-size: 1rem;
  margin-top: 10px;
  color: var(--electric-pink);
  font-weight: 700;
}
.stars img {
  width: 22px;
  height: 22px;
  display: inline-block;
  margin-right: 2px;
}

/* === FOOTER === */
footer {
  background: var(--primary);
  color: var(--accent);
  padding: 44px 0 22px 0;
  margin-top: 40px;
  border-top-left-radius: 40px;
  border-top-right-radius: 15px;
  box-shadow: 0 -5px 22px rgba(53,162,159,0.07);
}
footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 42px;
  align-items: flex-start;
  justify-content: space-between;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.38rem;
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 900;
  color: #fff;
}
.footer-brand img { width: 42px; }
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-nav a {
  color: #fff;
  opacity: .85;
  transition: color var(--transition), opacity var(--transition);
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 600;
  font-size: 1rem;
}
.footer-nav a:hover, .footer-nav a:focus {
  color: var(--electric-yellow);
  opacity: 1;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--accent);
  font-size: 1rem;
  max-width: 300px;
}
.footer-contact div { display: flex; align-items: center; gap: 9px; margin-bottom: 2px; }
.footer-contact img { width: 22px; height: 22px; }

/* === COOKIE CONSENT BANNER & MODAL === */
.cookie-consent-banner {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100vw;
  background: linear-gradient(91deg, var(--electric-yellow) 70%, var(--electric-pink) 160%);
  color: var(--primary);
  padding: 24px 18px 19px 18px;
  box-shadow: 0 -3px 19px rgba(53,162,159,.12);
  z-index: 10005;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  transition: transform 0.45s var(--transition), opacity 0.2s;
  opacity: 1;
  transform: translateY(0);
  border-top-left-radius: 40px;
  border-top-right-radius: 15px;
}
.cookie-consent-banner.hide {
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
}
.cookie-consent-banner p {
  font-size: 1.04rem;
  flex: 2 1 360px;
}
.cookie-consent-banner .cookie-btns {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.cookie-btns .cookie-accept, .cookie-btns .cookie-reject {
  background: var(--electric-cobalt);
  color: #fff;
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 700;
  font-size: 1rem;
  padding: 10px 19px;
  margin-bottom: 6px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.cookie-btns .cookie-accept:hover, .cookie-btns .cookie-accept:focus {
  background: var(--electric-pink);
}
.cookie-btns .cookie-reject {
  background: var(--electric-yellow);
  color: var(--primary);
}
.cookie-btns .cookie-reject:hover, .cookie-btns .cookie-reject:focus {
  background: var(--electric-teal);
  color: #fff;
}
.cookie-btns .cookie-settings {
  background: none;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 600;
  font-size: 1rem;
  padding: 9px 15px;
  margin-bottom: 6px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border var(--transition);
}
.cookie-btns .cookie-settings:hover, .cookie-btns .cookie-settings:focus { background: var(--accent); }

.cookie-modal {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(32,56,87, 0.48);
  z-index: 10009;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}
.cookie-modal.open {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal .cookie-modal-content {
  background: #fff;
  padding: 40px 32px;
  border-radius: var(--radius);
  max-width: 420px;
  width: 85vw;
  min-width: 0;
  box-shadow: 0 12px 38px rgba(60,67,254,0.13);
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.cookie-modal-content h3 {
  margin-bottom: 14px;
}
.cookie-category {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.cookie-category label { font-weight: 600; }
.cookie-category input[type='checkbox'] {
  width: 24px; height: 24px; accent-color: var(--electric-cobalt);
}
.cookie-modal .cookie-save-btn {
  background: var(--electric-cobalt);
  color: #fff;
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 700;
  font-size: 1rem;
  padding: 10px 19px;
  margin-top: 9px;
  cursor: pointer;
  transition: background var(--transition);
}
.cookie-modal .cookie-save-btn:hover, .cookie-modal .cookie-save-btn:focus {
  background: var(--electric-pink);
}
.cookie-modal .cookie-close-btn {
  position: absolute;
  top: 15px;
  right: 24px;
  background: none;
  border: 0;
  color: var(--primary);
  font-size: 2rem;
  cursor: pointer;
  transition: color var(--transition);
}
.cookie-modal .cookie-close-btn:hover, .cookie-modal .cookie-close-btn:focus {
  color: var(--electric-pink);
}

/* === ANIMATIONS, HOVER, FOCUS === */
.feature-item, .service-item, .news-list article {
  transition: box-shadow .28s, transform .19s;
}
.feature-item:hover, .feature-item:focus, .service-item:hover, .service-item:focus, .news-list article:hover {
  box-shadow: 0 12px 42px 0 rgba(60,67,254,0.17), 0 3px 15px rgba(53,162,159,0.09);
  transform: translateY(-7px) scale(1.03);
}
.btn-primary, .btn-secondary, .cookie-btns button {
  outline: none;
  box-shadow: none;
}
.btn-primary:focus-visible, .btn-secondary:focus-visible, .cookie-btns button:focus-visible {
  outline: 2px solid var(--electric-yellow);
  outline-offset: 2px;
}

::-webkit-input-placeholder { color: #9097b0; opacity: 1; }
:-moz-placeholder { color: #9097b0; opacity: 1; }
::-moz-placeholder { color: #9097b0; opacity: 1; }
:-ms-input-placeholder { color: #9097b0; opacity: 1; }
::placeholder { color: #9097b0; opacity: 1; }

/* === RESPONSIVE DESIGN (MOBILE-FIRST) === */
@media (max-width: 1100px) {
  .container { max-width: 100vw; }
  .main-nav { gap: 11px; margin-left: 14px; }
}
@media (max-width: 900px) {
  .main-nav { display: none !important; }
  .mobile-menu-toggle { display: flex; }
  header .btn-primary { display: none; }
  .hero-section { padding: 45px 0 36px 0 !important; }
  .footer-nav { gap: 9px; }
  .footer-brand { font-size: 1.15rem; }
  .footer-contact { font-size: .98rem; }
}
@media (max-width: 820px) {
  .feature-grid, .card-container, .service-list, .news-list, .footer-nav {
    flex-direction: column !important;
    gap: 20px !important;
  }
  .footer-contact, .footer-brand { align-items: flex-start; }
  .footer-contact { max-width: 100vw; }
}
@media (max-width: 700px) {
  h1 { font-size: 2.05rem; }
  h2 { font-size: 1.65rem; }
  .section, .hero-section { padding: 30px 8px !important; }
  .cta-section { padding: 28px 0 19px 0; }
  .testimonial-card, .feature-item, .service-item { padding: 15px 12px; }
  .map { padding: 12px; }
  footer .container { flex-direction: column; gap: 22px; align-items: flex-start; }
  .footer-brand { font-size: 1rem; }
}
@media (max-width: 540px) {
  .hero-section h1 { font-size: 1.4rem; }
  .footer-brand { gap: 4px; }
  header img[alt="RadianceFlux"] { height: 34px; }
  .section { margin-bottom: 35px; }
  .testimonial-card, .feature-item, .service-item, .news-list article {
    min-width: 0; max-width: 100vw;
  }
  .cookie-consent-banner { flex-direction: column; align-items: stretch; gap: 12px; padding: 15px 4vw; }
}
@media (max-width: 400px) {
  .hero-section { padding-left: 0 !important; padding-right: 0 !important; }
  .section, .cta-section { padding-left: 2px; padding-right: 2px; }
  .cookie-modal .cookie-modal-content { padding: 18px 4vw; }
}
/* === FLEXBOX LAYOUT FOR MOBILE-TEXT-IMAGE === */
.text-image-section {
  flex-direction: column;
  gap: 16px;
}
@media (min-width: 769px) {
  .text-image-section {
    flex-direction: row;
    align-items: center;
    gap: 30px;
  }
}
/* === UTILITY CLASSES === */
.mt-2 { margin-top: 14px !important; }
.mb-2 { margin-bottom: 14px !important; }
.mt-4 { margin-top: 32px !important; }
.clearfix::after { content: ''; display: block; clear: both; }

/* === BODY BG ON ALT PAGES === */
body.bg-alt { background: var(--background-alt); }

/* === FOCUS VISIBLE GLOW === */
:focus-visible { outline: 3px solid var(--electric-yellow); outline-offset: 1.7px; }

/* === ACCESSIBLE HIDDEN === */
.sr-only { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }