/* ==========================================================================
   Vranina Group - Main Stylesheet
   One-Pager Umbrella Site
   ========================================================================== */

@import 'reset.css';
@import 'variables.css';
@import 'typography.css';
@import 'layout.css';
@import 'components.css';

/* ==========================================================================
   Body States
   ========================================================================== */

body.menu-open {
  overflow: hidden;
}

body.loaded {
  opacity: 1;
}

/* ==========================================================================
   Scroll Animations
   ========================================================================== */

/* Slide in from sides */
.slide-in-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale in */
.scale-in {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 100ms; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 200ms; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 300ms; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 400ms; }

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Image reveal */
.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--color-limestone);
  transform: scaleX(1);
  transform-origin: right;
  transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1);
  z-index: 2;
}

.img-reveal.visible::after {
  transform: scaleX(0);
}

.img-reveal img {
  transition: transform 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  transform: scale(1.15);
}

.img-reveal.visible img {
  transform: scale(1);
}

/* Animated dividers */
.statement-block__line,
.brand-detail__divider {
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}

.statement-block__line.animated,
.brand-detail__divider.animated {
  transform: scaleX(1);
}

/* Label line animation */
.section-intro__label .label-line {
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.section-intro__label.visible .label-line {
  transform: scaleX(1);
}

/* ==========================================================================
   Watermark Decorative Element
   ========================================================================== */

.watermark {
  position: absolute;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.watermark--section {
  width: 100%;
  max-width: 1200px;
  height: auto;
  opacity: 0.03;
  left: 50%;
  transform: translateX(-50%);
}

.watermark--left {
  left: -10%;
  right: auto;
  transform: none;
  width: 50%;
  opacity: 0.025;
}

.watermark--right {
  right: -10%;
  left: auto;
  transform: none;
  width: 50%;
  opacity: 0.025;
}

/* Section with watermark */
.section-watermark {
  position: relative;
  overflow: hidden;
}

.section-watermark .watermark {
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
}

/* ==========================================================================
   Site Header
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: var(--space-5) 0;
  background: linear-gradient(180deg, #f6efefed 15%, #f6efefad 50%, transparent);
  transition: background-color var(--duration-normal) var(--ease-default),
              padding var(--duration-normal) var(--ease-default),
              box-shadow var(--duration-normal) var(--ease-default);
}

.site-header.scrolled {
  background-color: var(--color-limestone);
  padding: var(--space-4) 0;
  box-shadow: 0 1px 0 var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.site-header__nav {
  display: none;
  gap: var(--space-6);
  align-items: center;
  margin-left: auto;
}


.site-header__nav .nav-link:hover,
.site-header__nav .nav-link.active {
  color: var(--color-olive-drab);
}

/* Dark nav links when scrolled */
.site-header.scrolled .site-header__nav .nav-link {
  color: var(--color-text-primary);
  text-shadow: none;
}

.site-header.scrolled .site-header__nav .nav-link:hover,
.site-header.scrolled .site-header__nav .nav-link.active {
  color: var(--color-olive-drab);
}

/* Contact button in nav */
.nav-link--btn {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-pine-bark);
  transition: all var(--duration-normal) var(--ease-default);
}

.nav-link--btn:hover {
  background-color: var(--color-limestone);
  color: var(--color-pine-bark);
  text-shadow: none;
}

.nav-link--btn::after {
  display: none;
}

.site-header.scrolled .nav-link--btn {
  border-color: var(--color-pine-bark);
}

.site-header.scrolled .nav-link--btn:hover {
  background-color: var(--color-pine-bark);
  color: var(--color-limestone);
}

@media (min-width: 1024px) {
  .site-header__nav {
    display: flex;
  }
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-header__logo-symbol {
  height: 32px;
  width: auto;
}

@media (min-width: 768px) {
  .site-header__logo-symbol {
    height: 40px;
  }

  .site-header__logo-text {
    display: block;
  }
}

@media (min-width: 1024px) {
  .site-header__logo-symbol {
    height: 44px;
  }

  .site-header__logo-text {
    height: 18px;
  }
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-modal) + 1);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-limestone);
  transition: all var(--duration-normal) var(--ease-default);
  transform-origin: center;
}

.site-header.scrolled .menu-toggle span {
  background-color: var(--color-pine-bark);
}

.menu-toggle.active span {
  background-color: var(--color-pine-bark);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

/* ==========================================================================
   Mobile Menu
   ========================================================================== */

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-limestone);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-default),
              visibility var(--duration-normal) var(--ease-default);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.mobile-menu__link {
  font-family: var(--font-primary);
  font-size: var(--text-3xl);
  color: var(--color-pine-bark);
  transition: color var(--duration-fast) var(--ease-default);
}

.mobile-menu__link:hover {
  color: var(--color-olive-drab);
}

@media (min-width: 1024px) {
  .mobile-menu {
    display: none;
  }
}

/* ==========================================================================
   Site Footer
   ========================================================================== */

.site-footer {
  background-color: var(--color-pine-bark);
  color: var(--color-limestone);
  padding: var(--space-20) 0 var(--space-12);
  position: relative;
  overflow: hidden;
}

/* Background Watermark */
.site-footer__watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  width: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.06;
  overflow: visible;
}

.site-footer__watermark img,
.site-footer__watermark svg {
  width: 100%;
  height: auto;
  will-change: transform;
  overflow: visible;
}

.site-footer__watermark .watermark-svg {
  color: var(--color-limestone);
}

@media (min-width: 768px) {
  .site-footer__watermark {
    width: 90%;
  }
}

@media (min-width: 1024px) {
  .site-footer__watermark {
    width: 80%;
  }
}

/* Main Footer Layout */
.site-footer__main {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid rgba(246, 239, 239, 0.1);
}

@media (min-width: 768px) {
  .site-footer__main {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-16);
  }
}

@media (min-width: 1024px) {
  .site-footer__main {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-24);
  }
}

/* Brand Section */
.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.site-footer__logo {
  display: inline-block;
  width: fit-content;
}

.site-footer__logo img {
  height: 48px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: opacity var(--duration-fast) var(--ease-default);
}

.site-footer__logo:hover img {
  opacity: 0.8;
}

.site-footer__tagline {
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  line-height: 1.7;
  color: rgba(246, 239, 239, 0.7);
  max-width: 32ch;
}

.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.site-footer__contact-link {
  font-family: var(--font-secondary);
  font-size: var(--text-sm);
  color: rgba(246, 239, 239, 0.8);
  transition: color var(--duration-fast) var(--ease-default);
  width: fit-content;
}

a.site-footer__contact-link:hover {
  color: var(--color-olive-drab);
}

/* Navigation Section */
.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .site-footer__nav {
    justify-content: end;
    gap: var(--space-12);
  }
}

.site-footer__nav-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.site-footer__nav-title {
  font-family: var(--font-secondary);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-olive-drab);
  margin: 0;
}

.site-footer__nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__nav-links a {
  font-family: var(--font-secondary);
  font-size: var(--text-sm);
  color: rgba(246, 239, 239, 0.75);
  transition: color var(--duration-fast) var(--ease-default);
  width: fit-content;
}

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

/* Footer Bottom */
.site-footer__bottom {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-8);
}

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

.site-footer__copyright {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-secondary);
  font-size: var(--text-xs);
  color: rgba(246, 239, 239, 0.4);
  letter-spacing: 0.05em;
}

.site-footer__separator {
  width: 16px;
  height: 1px;
  background-color: rgba(246, 239, 239, 0.2);
}

.site-footer__meta {
  font-family: var(--font-secondary);
  font-size: var(--text-xs);
  color: rgba(246, 239, 239, 0.4);
  letter-spacing: 0.05em;
}

/* Watermark Letter Animation */
.site-footer__watermark .wm-letter {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 1s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.site-footer.watermark-animated .wm-letter {
  opacity: 1;
  transform: translateY(0);
}

.site-footer.watermark-animated .wm-letter-1 { transition-delay: 0ms; }
.site-footer.watermark-animated .wm-letter-2 { transition-delay: 100ms; }
.site-footer.watermark-animated .wm-letter-3 { transition-delay: 200ms; }
.site-footer.watermark-animated .wm-letter-4 { transition-delay: 300ms; }
.site-footer.watermark-animated .wm-letter-5 { transition-delay: 400ms; }
.site-footer.watermark-animated .wm-letter-6 { transition-delay: 500ms; }
.site-footer.watermark-animated .wm-letter-7 { transition-delay: 600ms; }

/* ==========================================================================
   Scroll Indicator
   ========================================================================== */

.scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  z-index: 10;
}

.scroll-hint span {
  font-family: var(--font-secondary);
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(246, 239, 239, 0.6);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background-color: rgba(246, 239, 239, 0.2);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-olive-drab);
  transform: translateY(-100%);
  animation: scrollLineMove 2s ease-in-out infinite;
}

@keyframes scrollLineMove {
  0%, 100% { transform: translateY(-100%); }
  50% { transform: translateY(100%); }
}