/*
Theme Name: TCGS - Tech & Culture Global Solutions
Theme URI: https://techandculture.ru
Author: TCGS
Author URI: https://techandculture.ru
Description: Business expeditions to the world's tech capitals. Custom WordPress theme for Tech & Culture Global Solutions.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: tcgs
Tags: custom-menu, custom-logo, featured-images, translation-ready
Requires at least: 6.0
Requires PHP: 8.0
*/

/* Font imports with swap to prevent FOIT */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');



/* base.css — Reset + Design Tokens for Tech & Culture */

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

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.15;
  font-family: var(--font-display, serif);
}

p, li, figcaption { text-wrap: pretty; max-width: 72ch; }

::selection {
  background: oklch(from var(--color-primary) l c h / 0.25);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }

a, button, [role="button"], [role="link"], input, textarea, select {
  transition: color var(--transition-interactive),
              background var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border-width: 0;
}

/* ========== DESIGN TOKENS ========== */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Fonts */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', 'Switzer', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ========== LIGHT MODE (Default) ========== */
:root, [data-theme="light"] {
  --color-bg: #F8F7F3;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F2F0EB;
  --color-text: #1A1A1A;
  --color-text-secondary: #5C5C5C;
  --color-text-muted: #9A9A9A;
  --color-primary: #1B5E6B;
  --color-primary-hover: #134A54;
  --color-secondary: #C17F3E;
  --color-secondary-hover: #A66B2F;
  --color-border: #E2E0DB;
  --color-divider: #ECEAE5;

  --shadow-sm: 0 1px 3px rgba(26, 26, 26, 0.06);
  --shadow-md: 0 4px 16px rgba(26, 26, 26, 0.08);
  --shadow-lg: 0 12px 40px rgba(26, 26, 26, 0.12);
  --shadow-xl: 0 20px 60px rgba(26, 26, 26, 0.16);
}

/* ========== DARK MODE ========== */
[data-theme="dark"] {
  --color-bg: #121212;
  --color-surface: #1E1E1E;
  --color-surface-alt: #252525;
  --color-text: #E5E5E5;
  --color-text-secondary: #B0B0B0;
  --color-text-muted: #787878;
  --color-primary: #3EA5B5;
  --color-primary-hover: #2D8A98;
  --color-secondary: #D4974E;
  --color-secondary-hover: #C17F3E;
  --color-border: #333333;
  --color-divider: #2A2A2A;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #121212;
    --color-surface: #1E1E1E;
    --color-surface-alt: #252525;
    --color-text: #E5E5E5;
    --color-text-secondary: #B0B0B0;
    --color-text-muted: #787878;
    --color-primary: #3EA5B5;
    --color-primary-hover: #2D8A98;
    --color-secondary: #D4974E;
    --color-secondary-hover: #C17F3E;
    --color-border: #333333;
    --color-divider: #2A2A2A;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
  }
}

/* style.css — Tech & Culture Component Styles */

/* ========== SKIP LINK ========== */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  z-index: 9999;
  font-size: var(--text-sm);
}
.skip-link:focus { top: var(--space-4); }

/* ========== HEADER / NAV ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 247, 243, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}
[data-theme="dark"] .site-header {
  background: rgba(18, 18, 18, 0.92);
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.6rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 60px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}
.logo svg { width: 32px; height: 32px; flex-shrink: 0; }
.logo-wordmark {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.nav-desktop {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: center;
  flex-wrap: nowrap;
  overflow: hidden;
  gap: 0;
}
.nav-desktop ul {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}
.nav-desktop a {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  letter-spacing: 0.01em;
  display: block;
}
.nav-desktop a:hover {
  color: var(--color-text);
  background: var(--color-surface-alt);
}
.nav-desktop a.active {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.btn-theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: background var(--transition-interactive), color var(--transition-interactive);
}
.btn-theme-toggle:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.btn-cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-cta:active {
  transform: translateY(0);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition-interactive), color var(--transition-interactive), transform var(--transition-interactive);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-secondary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.btn-secondary:hover {
  background: var(--color-secondary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Hamburger */
.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 99;
  padding: 5rem var(--space-6) var(--space-8);
  flex-direction: column;
  gap: var(--space-2);
  overflow-y: auto;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-divider);
}
.mobile-nav a:hover { color: var(--color-primary); }
.mobile-nav .btn-cta {
  margin-top: var(--space-4);
  text-align: center;
  justify-content: center;
}

/* ========== CONTAINER ========== */
.container {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
}
.section-alt {
  background: var(--color-surface-alt);
}

.section-header {
  text-align: center;
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-16));
}
.section-header h2 {
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.section-header p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 65ch;
  margin: 0 auto;
}

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #fff;
}
.hero-bg {
  position: absolute;
  inset: -15% 0;
  z-index: 0;
}
.hero-bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
  will-change: transform;
}
.hero-bg img.active { opacity: 1; }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.55) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: var(--space-8) var(--space-6);
}
.hero-content h1 {
  font-size: var(--text-3xl);
  font-weight: 400;
  color: #fff;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}
.hero-content .tagline {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-8);
  font-weight: 300;
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}
.hero-actions .btn-cta {
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
}
.hero-actions .btn-outline {
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.hero-actions .btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  color: #fff;
}

/* Hero stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
}
.hero-stat {
  text-align: center;
}
.hero-stat .stat-number {
  font-size: var(--text-2xl);
  font-family: var(--font-display);
  color: var(--color-secondary);
  display: block;
}
.hero-stat .stat-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: var(--space-1);
}

/* Company marquee */
.marquee-section {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  overflow: hidden;
  background: var(--color-surface);
}
.marquee-label {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-4);
}
.marquee-track {
  display: flex;
  gap: var(--space-12);
  animation: marquee 30s linear infinite;
  width: max-content;
}
.marquee-track span {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
  padding: var(--space-2) 0;
  opacity: 0.5;
  transition: opacity var(--transition-interactive);
}
.marquee-track span:hover { opacity: 1; }
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========== ABOUT ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  align-items: center;
}
.about-text h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
.about-text p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.7;
}
.about-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: clamp(var(--space-8), 4vw, var(--space-16));
}
.value-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.value-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}
.value-card h3 {
  font-size: var(--text-base);
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.value-card p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ========== SECTION BANNER ========== */
.section-banner {
  width: 100%;
  height: clamp(200px, 25vw, 360px);
  overflow: hidden;
  position: relative;
}
.section-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.section-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, var(--color-bg) 100%);
}

/* ========== EXPEDITIONS ========== */
.expeditions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
.expedition-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: default;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.expedition-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}
.expedition-card-img {
  aspect-ratio: 16/10;
  overflow: hidden;
}
.expedition-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}
.expedition-card:hover .expedition-card-img img {
  transform: scale(1.05);
}
.expedition-card-body {
  padding: var(--space-5) var(--space-6);
}
.expedition-card-body h3 {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  margin-bottom: var(--space-2);
}
.expedition-card-body .cities {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-2);
}
.expedition-card-body .desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}
.expedition-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.expedition-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ========== WHY / HOW / WHO ========== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.why-col h3 {
  font-size: var(--text-xl);
  font-family: var(--font-display);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-secondary);
}
.why-col ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.why-col ul li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding-left: var(--space-6);
  position: relative;
  line-height: 1.6;
}
.why-col ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  background: var(--color-secondary);
  border-radius: 50%;
}

/* Process timeline */
.process-timeline {
  display: flex;
  gap: 0;
  margin-top: clamp(var(--space-10), 4vw, var(--space-16));
  position: relative;
  padding-top: var(--space-8);
}
.process-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: calc(10% + 16px);
  right: calc(10% + 16px);
  height: 2px;
  background: var(--color-border);
}
.process-step {
  flex: 1;
  text-align: center;
  position: relative;
}
.process-step .step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-3);
  position: relative;
  top: -52px;
}
.process-step .step-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-1);
  margin-top: -32px;
}
.process-step .step-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ========== CASES ========== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.case-card-body {
  padding: var(--space-5) var(--space-6);
}
.case-card-body h3 {
  font-size: var(--text-base);
  font-family: var(--font-display);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}
.case-card-body p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}
.case-result {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(27, 94, 107, 0.08);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
}
[data-theme="dark"] .case-result {
  background: rgba(62, 165, 181, 0.15);
}

/* ========== FORMATS ========== */
.formats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.format-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.format-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.format-icon {
  width: 56px;
  height: 56px;
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.format-card h3 {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  margin-bottom: var(--space-2);
}
.format-card .format-subtitle {
  font-size: var(--text-sm);
  color: var(--color-secondary);
  font-weight: 500;
  margin-bottom: var(--space-4);
}
.format-card ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-6);
  flex: 1;
}
.format-card ul li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-divider);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}
.format-card ul li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 600;
  flex-shrink: 0;
}
.format-card .btn-cta,
.format-card .btn-outline {
  align-self: flex-start;
  margin-top: auto;
}

/* ========== TOUR BUILDER ========== */
.builder-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 3vw, var(--space-10));
  max-width: 800px;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
}

/* Progress bar */
.builder-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}
.progress-step {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.progress-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-surface-alt);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  transition: all 0.3s var(--ease-out);
}
.progress-dot.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.progress-dot.completed {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.progress-line {
  width: 40px;
  height: 2px;
  background: var(--color-border);
  transition: background 0.3s var(--ease-out);
}
.progress-line.completed {
  background: var(--color-primary);
}

/* Builder steps */
.builder-step {
  display: none;
  animation: fadeStep 0.4s var(--ease-out);
}
.builder-step.active { display: block; }
@keyframes fadeStep {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.builder-step h3 {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  margin-bottom: var(--space-2);
}
.builder-step .step-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

/* Radio / Checkbox grid */
.option-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
.option-card {
  position: relative;
}
.option-card input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.option-card label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface-alt);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--transition-interactive), background var(--transition-interactive), box-shadow var(--transition-interactive);
  font-size: var(--text-sm);
}
.option-card label:hover {
  border-color: var(--color-primary);
}
.option-card input:checked + label {
  border-color: var(--color-primary);
  background: rgba(27, 94, 107, 0.06);
  box-shadow: 0 0 0 1px var(--color-primary);
}
[data-theme="dark"] .option-card input:checked + label {
  background: rgba(62, 165, 181, 0.1);
}
.option-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}
.icon-sm { width: 16px; height: 16px; vertical-align: -2px; }
.icon-option { width: 20px; height: 20px; }

/* Slider */
.slider-group {
  margin-bottom: var(--space-6);
}
.slider-group label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-3);
}
.slider-value {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  color: var(--color-primary);
}
input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  background: var(--color-primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-interactive);
}
input[type="range"]::-webkit-slider-thumb:hover {
  box-shadow: var(--shadow-md);
}
input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--color-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

/* Form inputs */
.form-group {
  margin-bottom: var(--space-4);
}
.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-alt);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 94, 107, 0.1);
}
.form-textarea { min-height: 100px; resize: vertical; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* Builder nav */
.builder-nav {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-8);
  gap: var(--space-4);
}
.btn-prev {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  transition: border-color var(--transition-interactive), color var(--transition-interactive);
}
.btn-prev:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}
.btn-next,
.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-left: auto;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}
.btn-next:hover,
.btn-submit:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

/* Builder success */
.builder-success {
  text-align: center;
  padding: var(--space-10);
  display: none;
}
.builder-success.active { display: block; }
.builder-success .success-icon {
  width: 64px;
  height: 64px;
  background: rgba(27, 94, 107, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  color: var(--color-primary);
}
.builder-success h3 {
  font-size: var(--text-xl);
  font-family: var(--font-display);
  margin-bottom: var(--space-3);
}
.builder-success p {
  color: var(--color-text-secondary);
}

/* ========== PARTNERS ========== */
.partners-categories {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}
.partner-category {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-interactive);
  cursor: default;
}
.partner-category:hover {
  color: var(--color-text);
  border-color: var(--color-secondary);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-4);
}
.partner-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-3);
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all var(--transition-interactive);
}
.partner-item:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* ========== BLOG ========== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
  cursor: default;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.blog-card-img {
  aspect-ratio: 16/10;
  overflow: hidden;
}
.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}
.blog-card:hover .blog-card-img img {
  transform: scale(1.05);
}
.blog-card-body {
  padding: var(--space-5) var(--space-6);
}
.blog-tag {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}
.blog-card-body h3 {
  font-size: var(--text-base);
  font-family: var(--font-display);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}
.blog-card-body p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}
.blog-meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ========== CONTACTS ========== */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
}
.contact-info h3 {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  margin-bottom: var(--space-6);
}
.contact-item {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}
.contact-detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.contact-detail .label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.contact-detail .value {
  font-size: var(--text-sm);
  color: var(--color-text);
}
.contact-detail a {
  color: var(--color-primary);
  text-decoration: none;
}
.contact-detail a:hover { text-decoration: underline; }

.contact-form-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}
.contact-form-box h3 {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  margin-bottom: var(--space-6);
}

/* Map placeholder */
.map-placeholder {
  margin-top: var(--space-8);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ========== FOOTER ========== */
.site-footer {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-divider);
  padding: clamp(var(--space-10), 4vw, var(--space-16)) 0 var(--space-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}
.footer-brand .logo {
  margin-bottom: var(--space-4);
}
.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  max-width: 280px;
  line-height: 1.6;
}
.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}
.footer-col ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-col ul a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer-col ul a:hover { color: var(--color-primary); }
.footer-socials {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.footer-socials a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-interactive);
}
.footer-socials a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.footer-bottom a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.footer-bottom a:hover { color: var(--color-primary); }

/* ========== PAGE HERO (sub-pages) ========== */
.page-hero {
  position: relative;
  min-height: clamp(260px, 35vw, 420px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #fff;
}
.page-hero-bg {
  position: absolute;
  inset: -20% 0;
  z-index: 0;
}
.page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: transform;
}
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.6) 100%);
  z-index: 1;
}
.page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  padding: var(--space-8) var(--space-6);
}
.page-hero-content h1 {
  font-size: var(--text-2xl);
  font-weight: 400;
  color: #fff;
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
}
.page-hero-content p {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.8);
  font-weight: 300;
}

/* ========== PAGE TRANSITIONS ========== */
body {
  opacity: 0;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
body.page-loaded {
  opacity: 1;
}
body.page-transitioning-out {
  opacity: 0;
  transition: opacity 0.25s cubic-bezier(0.4, 0, 1, 1);
}

/* View Transitions API (progressive enhancement) */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vt-fade-out 0.2s cubic-bezier(0.4, 0, 1, 1); }
::view-transition-new(root) { animation: vt-fade-in 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes vt-fade-out { from { opacity: 1; } to { opacity: 0; } }
@keyframes vt-fade-in { from { opacity: 0; } to { opacity: 1; } }

/* ========== SCROLL ANIMATIONS ========== */
.fade-in { opacity: 1; }

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* Stagger delays */
.fade-in-d1 { animation-delay: 80ms; }
.fade-in-d2 { animation-delay: 160ms; }
.fade-in-d3 { animation-delay: 240ms; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1100px) {
  .header-actions .btn-cta { display: none; }
  .nav-desktop a { font-size: 0.72rem; padding: 0.2rem 0.35rem; }
}

@media (max-width: 1024px) {
  .nav-desktop { display: none; }
  .hamburger { display: flex; }
  .header-actions .btn-cta { display: none; }

  .about-grid { grid-template-columns: 1fr; }
  .about-image { order: -1; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .expeditions-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .formats-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(4, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .contacts-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
  .hero-content h1 { font-size: var(--text-2xl); }
  .values-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .option-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .process-timeline { flex-direction: column; padding-top: 0; gap: var(--space-4); }
  .process-timeline::before { display: none; }
  .process-step .step-num { top: 0; }
  .process-step .step-title { margin-top: 0; }
  .hero-actions { flex-direction: column; align-items: center; }
  .partners-categories { gap: var(--space-4); }
  .builder-progress { gap: var(--space-1); }
  .progress-line { width: 20px; }
  .contacts-grid { gap: var(--space-8); }
  .contact-form-box { padding: var(--space-5); }
}

/* ========== LANGUAGE TOGGLE ========== */
.btn-lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--color-divider);
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
  flex-shrink: 0;
}
.btn-lang-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ========== LANGUAGE SWITCHING TRANSITION ========== */
[data-en], [data-ru] {
  transition: opacity 0.3s ease;
}
.lang-switching [data-en],
.lang-switching [data-ru] {
  opacity: 0;
}

/* ========== LOGO SIZE FIX ========== */
.logo svg {
  width: 140px;
  height: 36px;
}
.footer-brand .logo svg {
  width: 120px;
  height: 32px;
}