/* Vantis Signs — Design System */

:root {
  --deep-charcoal: #0F1720;
  --vantis-blue: #0066FF;
  --cool-gray: #6B7280;
  --pure-white: #FFFFFF;
  --background: #0c141d;
  --surface: #0c141d;
  --surface-bright: #323a44;
  --surface-container: #18202a;
  --on-surface: #dbe3f0;
  --on-surface-variant: #c2c6d8;
  --container-max: 1280px;
  --gutter: 24px;
  --margin-mobile: 16px;
  --section-gap: 120px;
  --font-headline: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--on-surface);
  background-color: var(--background);
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  border-radius: 0;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--margin-mobile);
  padding-right: var(--margin-mobile);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
}

/* Typography */
.headline-xl {
  font-family: var(--font-headline);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .headline-xl {
    font-size: 64px;
  }
}

.headline-lg {
  font-family: var(--font-headline);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

@media (min-width: 768px) {
  .headline-lg {
    font-size: 40px;
  }
}

.headline-md {
  font-family: var(--font-headline);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.3;
}

.body-lg {
  font-size: 18px;
  line-height: 1.6;
}

.label-bold {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.text-muted {
  color: var(--on-surface-variant);
}

.text-blue {
  color: var(--vantis-blue);
}

.text-white {
  color: var(--pure-white);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:active {
  transform: scale(0.95);
}

.btn--primary {
  background-color: var(--vantis-blue);
  color: var(--pure-white);
}

.btn--primary:hover {
  opacity: 0.9;
}

.btn--secondary {
  background: transparent;
  color: var(--pure-white);
  border: 2px solid var(--cool-gray);
}

.btn--secondary:hover {
  border-color: var(--vantis-blue);
  color: var(--vantis-blue);
}

.btn--large {
  padding: 20px 40px;
}

.btn--full {
  width: 100%;
}

/* CTA Bar */
.cta-bar {
  background-color: var(--vantis-blue);
  padding: 8px var(--margin-mobile);
  position: relative;
  z-index: 100;
}

@media (min-width: 768px) {
  .cta-bar {
    padding: 8px var(--gutter);
  }
}

.cta-bar__text {
  color: var(--pure-white);
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.cta-bar__text a {
  color: var(--pure-white);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Header */
.site-header {
  background-color: var(--deep-charcoal);
  border-bottom: 1px solid rgba(107, 114, 128, 0.2);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--margin-mobile);
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .site-header__inner {
    padding: 0 var(--gutter);
  }
}

.site-header__logo {
  background: var(--pure-white);
  padding: 8px;
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}

.site-header__logo:hover {
  transform: scale(1.05);
}

.site-header__logo img {
  height: 40px;
  width: auto;
}

@media (min-width: 768px) {
  .site-header__logo img {
    height: 48px;
  }
}

.nav {
  display: none;
  align-items: center;
  gap: 32px;
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }
}

.nav__link {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease;
}

.nav__link:hover,
.nav__link--active {
  color: var(--vantis-blue);
}

.nav__link--active {
  border-bottom-color: var(--vantis-blue);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-header__icons {
  display: none;
  align-items: center;
  gap: 16px;
}

@media (min-width: 1280px) {
  .site-header__icons {
    display: flex;
  }
}

.site-header__icons a {
  color: var(--on-surface-variant);
  transition: color 0.2s ease;
}

.site-header__icons a:hover {
  color: var(--vantis-blue);
}

.site-header__icons .material-symbols-outlined {
  font-size: 24px;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--pure-white);
  cursor: pointer;
  padding: 4px;
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle .material-symbols-outlined {
  font-size: 32px;
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  background-color: var(--deep-charcoal);
  border-bottom: 1px solid rgba(107, 114, 128, 0.2);
  padding: 16px var(--margin-mobile) 24px;
}

.mobile-nav.is-open {
  display: block;
}

@media (min-width: 768px) {
  .mobile-nav {
    display: none !important;
  }
}

.mobile-nav__link {
  display: block;
  padding: 12px 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  border-bottom: 1px solid rgba(107, 114, 128, 0.15);
}

.mobile-nav__link:hover,
.mobile-nav__link--active {
  color: var(--vantis-blue);
}

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 32, 0.6);
}

.hero__content {
  position: relative;
  z-index: 10;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--margin-mobile);
  text-align: center;
}

@media (min-width: 768px) {
  .hero__content {
    padding: 0 var(--gutter);
  }
}

.hero__badge {
  display: inline-block;
  background: rgba(0, 102, 255, 0.1);
  border-left: 4px solid var(--vantis-blue);
  padding: 8px 16px;
  margin-bottom: 24px;
}

.hero__badge p {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--vantis-blue);
}

.hero__title {
  color: var(--pure-white);
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero__subtitle {
  font-size: 18px;
  color: var(--on-surface-variant);
  margin-bottom: 40px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

@media (min-width: 640px) {
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.hero__scroll .material-symbols-outlined {
  font-size: 36px;
  color: var(--vantis-blue);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* Sections */
.section {
  padding: 80px 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--section-gap) 0;
  }
}

.section--charcoal {
  background-color: var(--deep-charcoal);
}

.section--surface {
  background-color: var(--surface);
}

.section__header {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 64px;
}

@media (min-width: 768px) {
  .section__header {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.section__intro {
  max-width: 640px;
}

.section__rule {
  width: 80px;
  height: 4px;
  background-color: var(--vantis-blue);
  margin: 24px 0;
}

/* About block */
.about-grid {
  display: grid;
  gap: 80px;
  align-items: center;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.about-box {
  aspect-ratio: 1;
  background-color: var(--surface-container);
  border: 1px solid rgba(107, 114, 128, 0.2);
  position: relative;
  padding: 32px;
}

.about-box__corner-tl,
.about-box__corner-br {
  position: absolute;
  width: 96px;
  height: 96px;
  border-color: var(--vantis-blue);
  border-style: solid;
}

.about-box__corner-tl {
  top: -16px;
  left: -16px;
  border-width: 4px 0 0 4px;
}

.about-box__corner-br {
  bottom: -16px;
  right: -16px;
  border-width: 0 4px 4px 0;
}

.about-box__inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.feature-item {
  display: flex;
  gap: 24px;
}

.feature-item__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(0, 102, 255, 0.1);
  border: 1px solid rgba(0, 102, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-item__icon .material-symbols-outlined {
  color: var(--vantis-blue);
}

.feature-item h4 {
  font-family: var(--font-headline);
  font-size: 24px;
  font-weight: 600;
  color: var(--pure-white);
  margin-bottom: 8px;
}

/* Service Cards — Home grid */
.services-grid--home {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid rgba(107, 114, 128, 0.1);
}

@media (min-width: 768px) {
  .services-grid--home {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid--home {
    grid-template-columns: repeat(4, 1fr);
  }
}

.service-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border-right: 1px solid rgba(107, 114, 128, 0.1);
  border-bottom: 1px solid rgba(107, 114, 128, 0.1);
}

.service-card--home {
  height: 400px;
}

.service-card--page {
  height: 350px;
  border: 1px solid rgba(107, 114, 128, 0.2);
}

.service-card__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.7s ease;
}

.service-card:hover .service-card__bg {
  transform: scale(1.1);
}

.service-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 32, 0.4);
  transition: opacity 0.5s ease, background-color 0.3s ease;
}

.service-card--home:hover .service-card__overlay {
  opacity: 0;
}

.service-card--page .service-card__overlay {
  background: rgba(15, 23, 32, 0.6);
}

.service-card--page:hover .service-card__overlay {
  background: rgba(15, 23, 32, 0.2);
}

.service-card__title-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  z-index: 10;
}

.service-card__title {
  font-family: var(--font-headline);
  font-size: 24px;
  font-weight: 600;
  color: var(--pure-white);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  transition: transform 0.5s ease;
}

.service-card:hover .service-card__title {
  transform: scale(1.05);
}

.service-card__tag {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  background: var(--vantis-blue);
  transform: translateY(100%);
  transition: transform 0.5s ease;
  z-index: 11;
}

.service-card--home:hover .service-card__tag {
  transform: translateY(0);
}

.service-card__tag p {
  color: var(--pure-white);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
}

.service-card__line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--vantis-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.service-card--page:hover .service-card__line {
  transform: scaleX(1);
}

/* Services page grid */
.services-grid--page {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gutter);
}

@media (min-width: 768px) {
  .services-grid--page {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid--page {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Page header */
.page-header {
  padding: 96px var(--margin-mobile) 48px;
  text-align: center;
  max-width: var(--container-max);
  margin: 0 auto;
}

@media (min-width: 768px) {
  .page-header {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
}

.page-header__rule {
  width: 96px;
  height: 4px;
  background: var(--vantis-blue);
  margin: 32px auto;
}

.page-header__subtitle {
  font-size: 18px;
  color: var(--on-surface-variant);
  max-width: 640px;
  margin: 0 auto;
}

/* Contact block */
.contact-panel {
  display: grid;
  gap: 48px;
  background: var(--deep-charcoal);
  padding: 48px;
  border: 1px solid rgba(107, 114, 128, 0.1);
}

@media (min-width: 1024px) {
  .contact-panel {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-details__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  color: var(--on-surface);
}

.contact-details__item .material-symbols-outlined {
  color: var(--vantis-blue);
  flex-shrink: 0;
}

.contact-details__item a:hover {
  color: var(--vantis-blue);
}

/* Form */
.form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form__row {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .form__row {
    grid-template-columns: 1fr 1fr;
  }
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form__group label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

.form__group.is-focused label {
  color: var(--vantis-blue);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 16px;
  background: var(--deep-charcoal);
  border: 1px solid rgba(107, 114, 128, 0.3);
  color: var(--pure-white);
  outline: none;
  transition: border-color 0.2s ease;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--vantis-blue);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

/* CTA Section */
.cta-section {
  background: var(--surface-container);
  padding: 96px 0;
}

.cta-section__inner {
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: flex-start;
}

@media (min-width: 768px) {
  .cta-section__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.cta-section__actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .cta-section__actions {
    flex-direction: row;
  }
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid rgba(107, 114, 128, 0.2);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: rgba(15, 23, 32, 0.8);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pure-white);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-item__caption {
  transform: translateY(0);
}

/* About page */
.content-block {
  max-width: 800px;
}

.content-block p {
  margin-bottom: 24px;
  color: var(--on-surface-variant);
}

.content-block p:last-child {
  margin-bottom: 0;
}

.values-grid {
  display: grid;
  gap: 32px;
  margin-top: 64px;
}

@media (min-width: 768px) {
  .values-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.value-card {
  padding: 32px;
  border: 1px solid rgba(107, 114, 128, 0.2);
  background: var(--surface-container);
}

.value-card h3 {
  font-family: var(--font-headline);
  font-size: 20px;
  font-weight: 600;
  color: var(--pure-white);
  margin-bottom: 12px;
}

.value-card p {
  color: var(--on-surface-variant);
  font-size: 15px;
}

/* Footer */
.site-footer {
  background: var(--deep-charcoal);
  border-top: 1px solid rgba(107, 114, 128, 0.2);
  padding: 80px 0 40px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  margin-bottom: 64px;
}

@media (min-width: 768px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.site-footer__logo-wrap {
  display: inline-block;
  background: var(--pure-white);
  padding: 12px;
  margin-bottom: 24px;
}

.site-footer__logo {
  height: 80px;
  width: auto;
  display: block;
}

.site-footer__brand p {
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: 24px;
}

.site-footer__social {
  display: flex;
  gap: 16px;
}

.site-footer__social a {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(107, 114, 128, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-surface-variant);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.site-footer__social a:hover {
  border-color: var(--vantis-blue);
  color: var(--vantis-blue);
}

.site-footer__heading {
  font-family: var(--font-headline);
  font-size: 24px;
  font-weight: 600;
  color: var(--pure-white);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.site-footer__links a {
  color: var(--on-surface-variant);
  transition: color 0.2s ease;
}

.site-footer__links a:hover,
.site-footer__links a.is-active {
  color: var(--vantis-blue);
}

.site-footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--on-surface-variant);
  margin-bottom: 16px;
}

.site-footer__contact .material-symbols-outlined {
  color: var(--vantis-blue);
  flex-shrink: 0;
  margin-top: 2px;
}

.site-footer__bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(107, 114, 128, 0.1);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

@media (min-width: 768px) {
  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.site-footer__bottom p {
  font-size: 14px;
  color: var(--on-surface-variant);
}

.site-footer__status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-footer__status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.site-footer__status span {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

/* Legal links */
.legal-link {
  cursor: pointer;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--margin-mobile);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 32, 0.85);
}

.modal__dialog {
  position: relative;
  width: 100%;
  max-width: 440px;
  background: var(--deep-charcoal);
  border: 1px solid rgba(107, 114, 128, 0.3);
  padding: 40px 32px 32px;
  text-align: center;
}

.modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  color: var(--on-surface-variant);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  transition: color 0.2s ease;
}

.modal__close:hover {
  color: var(--vantis-blue);
}

.modal__close .material-symbols-outlined {
  font-size: 24px;
}

.modal__title {
  font-family: var(--font-headline);
  font-size: 24px;
  font-weight: 600;
  color: var(--pure-white);
  margin-bottom: 16px;
}

.modal__text {
  color: var(--on-surface-variant);
  margin-bottom: 32px;
  line-height: 1.6;
}

.modal__actions {
  display: flex;
  justify-content: center;
}

.site-header__icons .social-icon {
  width: 24px;
  height: 24px;
  display: block;
}

.site-footer__social .social-icon {
  width: 24px;
  height: 24px;
  display: block;
}

/* Material Symbols */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Selection */
::selection {
  background: var(--vantis-blue);
  color: var(--pure-white);
}