/* Kloud Aerospace Solutions — global styles */

:root {
  --color-bg: #121418;
  --color-bg-elevated: #1a1f2c;
  --color-surface: #222833;
  --color-text: #a0aec0;
  --color-heading: #ffffff;
  --color-border: rgba(255, 255, 255, 0.12);
  --color-accent: #2dd4bf;
  --color-accent-dim: #14b8a6;
  --color-btn: #1e3a5f;
  --color-btn-hover: #2a4a75;
  --font-heading: "Montserrat", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --radius: 10px;
  --radius-sm: 6px;
  --header-h: 4.25rem;
  --shadow-soft: 0 24px 48px rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  margin: 0 0 var(--space-md);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin: 0 0 var(--space-md);
}

h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
}

p {
  margin: 0 0 var(--space-sm);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: #5eead4;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.container--narrow {
  max-width: 720px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-sm);
  z-index: 1000;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-heading);
  color: var(--color-bg);
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-sm);
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nowrap {
  white-space: nowrap;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(18, 20, 24, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: var(--header-h);
  padding-block: var(--space-xs);
}

.site-logo {
  display: flex;
  align-items: center;
  margin-right: auto;
  text-decoration: none;
}

.site-logo img {
  width: auto;
  max-width: 150px;
  width: 100%;
  object-fit: contain;
}

.site-header__phone {
  flex-shrink: 0;
  padding: 0.65rem 1rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-heading);
  background: var(--color-btn);
  border-radius: var(--radius-sm);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: background 0.2s ease;
}

.site-header__phone:hover {
  background: var(--color-btn-hover);
  color: var(--color-heading);
}

.site-header__phone:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.site-nav {
  display: none;
}

.site-nav.is-open {
  display: block;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md);
  box-shadow: var(--shadow-soft);
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.site-nav__list a {
  display: block;
  padding: 0.75rem 0;
  color: var(--color-heading);
  text-decoration: none;
  font-weight: 500;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.site-nav__list a:hover {
  color: var(--color-accent);
}

.site-nav__list a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  color: var(--color-heading);
}

.nav-toggle:hover {
  background: var(--color-surface);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  margin-inline: auto;
  background: currentColor;
  border-radius: 1px;
}

@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }

  .site-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-lg);
  }

  .site-logo {
    margin-right: 0;
  }

  .site-nav {
    display: block;
    position: static;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    justify-self: center;
  }

  .site-nav__list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-md);
    align-items: center;
    justify-content: center;
  }

  .site-nav__list a {
    padding: 0.5rem 0;
  }
}

/* Hero */
.hero {
  padding-block: var(--space-xl);
  background: linear-gradient(165deg, var(--color-bg-elevated) 0%, var(--color-bg) 55%);
}

.hero__grid {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

.hero__lead {
  font-size: 1.125rem;
  color: #e2e8f0;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.hero__text {
  max-width: 36rem;
  margin-bottom: var(--space-md);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
}

.hero__tel {
  font-weight: 600;
  color: var(--color-heading);
  text-decoration: none;
}

.hero__tel:hover {
  color: var(--color-accent);
}

.hero__media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  aspect-ratio: 4 / 5;
  max-height: min(70vh, 560px);
}

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (min-width: 768px) {
  .hero__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .hero__media {
    max-height: 520px;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.15s ease;
}

.btn--primary {
  background: var(--color-btn);
  color: var(--color-heading);
}

.btn--primary:hover {
  background: var(--color-btn-hover);
  color: var(--color-heading);
  transform: translateY(-1px);
}

.btn--primary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn--block {
  width: 100%;
  margin-top: var(--space-md);
}

/* Credibility strip */
.credibility-strip {
  background: var(--color-bg);
  border-block: 1px solid var(--color-border);
  padding-block: var(--space-md);
}

.credibility-strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm) var(--space-md);
}

.cred-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.7125rem;
  font-weight: 600;
  color: #cbd5e1;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.cred-item__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--color-accent-dim);
}

.cred-sep {
  display: none;
  width: 1px;
  height: 1.25rem;
  background: var(--color-border);
}

@media (min-width: 960px) {
  .cred-sep {
    display: block;
  }
}

/* Sections */
.section {
  padding-block: var(--space-2xl);
}

.section--about,
.section--why {
  background: var(--color-bg-elevated);
}

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

.section--experience {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
}

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

.section--contact {
  background: var(--color-bg-elevated);
  padding-block: var(--space-2xl);
}

.section__title {
  text-align: center;
  margin-bottom: var(--space-sm);
}

.section__intro {
  text-align: center;
  max-width: 36rem;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

/* Split (about / why) */
.split {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

.split__media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

.split__img {
  width: 100%;
  display: block;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  max-height: 480px;
}

.split__media--tall .split__img {
  max-height: 520px;
}

@media (min-width: 768px) {
  .split {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .split--reverse .split__media {
    order: 2;
  }

  .split--reverse .split__content {
    order: 1;
  }
}

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

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

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

.service-card {
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.service-card:hover {
  border-color: rgba(45, 212, 191, 0.35);
  background: rgba(45, 212, 191, 0.04);
}

.service-card__icon {
  width: 32px;
  height: 32px;
  color: var(--color-accent-dim);
  margin-bottom: var(--space-sm);
}

.service-card p {
  font-size: 0.9375rem;
  margin: 0;
}

/* Gallery */
.gallery {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

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

.gallery__item {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.gallery__item img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
}

.gallery__item figcaption {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.5;
}

/* Checklist */
.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.checklist svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--color-accent-dim);
  margin-top: 2px;
}

.checklist span {
  color: #e2e8f0;
}

/* Process */
.process-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  counter-reset: step;
}

.process-steps > li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  align-items: start;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.process-steps > li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.process-steps__num {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-bg);
  background: linear-gradient(135deg, var(--color-accent-dim), var(--color-accent));
  border-radius: 50%;
}

.process-steps p {
  font-size: 0.9375rem;
  margin: 0;
}

/* Contact */
.contact-card {
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
}

.contact-card__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94a3b8;
  margin-bottom: var(--space-xs);
}

.contact-card__phone {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.5rem, 5vw, 2rem);
  color: var(--color-heading);
  text-decoration: none;
  margin-bottom: var(--space-md);
  min-height: 48px;
  line-height: 48px;
}

.contact-card__phone:hover {
  color: var(--color-accent);
}

.contact-card__email {
  font-size: 1.0625rem;
  word-break: break-word;
}

.contact-card__phone:focus-visible,
.contact-card__email:focus-visible,
.hero__tel:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Footer */
.site-footer {
  padding-block: var(--space-xl);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  display: grid;
  gap: var(--space-lg);
  text-align: center;
}

.site-footer__brand strong {
  display: block;
  font-family: var(--font-heading);
  color: var(--color-heading);
  margin-bottom: var(--space-xs);
}

.site-footer__brand p {
  font-size: 0.9375rem;
  margin: 0;
}

.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  align-items: center;
}

.site-footer__contact a {
  font-weight: 600;
  color: var(--color-heading);
  text-decoration: none;
}

.site-footer__contact a:hover {
  color: var(--color-accent);
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm) var(--space-md);
}

.site-footer__nav a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9375rem;
}

.site-footer__nav a:hover {
  color: var(--color-accent);
}

.site-footer__copy {
  font-size: 0.8125rem;
  color: #64748b;
  margin: 0;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  grid-column: 1 / -1;
}

@media (min-width: 768px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    text-align: left;
  }

  .site-footer__contact {
    align-items: flex-end;
    text-align: right;
  }

  .site-footer__nav {
    justify-content: flex-start;
    grid-column: 1 / -1;
  }
}