/* =========================================================
   GLOBAL.CSS
   4 Season Shield Insulation
   ========================================================= */

:root {
  --color-primary: #8dc63f;
  --color-primary-dark: #6fa52a;
  --color-primary-soft: #b6de78;
  --color-primary-glow: rgba(141, 198, 63, 0.28);

  --color-white: #ffffff;
  --color-offwhite: #f7f9f6;
  --color-light: #eef3ee;

  --color-gray-50: #f5f7f5;
  --color-gray-100: #e8ece8;
  --color-gray-200: #d8ddd8;
  --color-gray-300: #bec5be;
  --color-gray-400: #98a198;
  --color-gray-500: #6e776e;
  --color-gray-600: #4f584f;
  --color-gray-700: #353d35;
  --color-gray-800: #202720;
  --color-gray-900: #131813;

  --color-dark: #0c110d;
  --color-dark-soft: #111712;
  --color-dark-elevated: rgba(17, 23, 18, 0.85);

  --text-primary: #ffffff;
  --text-dark: #111611;
  --text-muted: #b8c0b8;
  --text-soft-dark: #5d655d;

  --border-soft: rgba(255, 255, 255, 0.08);
  --border-dark: rgba(17, 22, 17, 0.08);
  --border-green: rgba(141, 198, 63, 0.28);

  --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 18px 40px rgba(0, 0, 0, 0.14);
  --shadow-lg: 0 30px 70px rgba(0, 0, 0, 0.22);
  --shadow-xl: 0 40px 100px rgba(0, 0, 0, 0.32);

  --radius-xs: 10px;
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --radius-pill: 999px;

  --container-width: 1320px;
  --container-padding: 24px;

  --header-height: 92px;

  --transition-fast: 0.25s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.7s ease;

  --gradient-dark:
    linear-gradient(
      135deg,
      #081009 0%,
      #101711 35%,
      #18211a 65%,
      #0e150f 100%
    );

  --gradient-primary:
    linear-gradient(
      135deg,
      #8dc63f 0%,
      #a7d95c 40%,
      #6fa52a 100%
    );

  --gradient-card:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.05) 0%,
      rgba(255, 255, 255, 0.015) 100%
    );
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--color-dark);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
video {
  max-width: 100%;
  display: block;
}

video {
  object-fit: cover;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast), opacity var(--transition-fast), transform var(--transition-fast);
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: none;
  background: none;
  cursor: pointer;
}

ul,
ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

p,
h1,
h2,
h3,
h4,
h5,
h6,
blockquote {
  margin: 0;
}

section {
  position: relative;
}

main {
  position: relative;
  z-index: 1;
}

.container {
  width: 100%;
  max-width: calc(var(--container-width) + (var(--container-padding) * 2));
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section-dark {
  background:
    radial-gradient(circle at top right, rgba(141, 198, 63, 0.08), transparent 24%),
    radial-gradient(circle at bottom left, rgba(255, 255, 255, 0.03), transparent 20%),
    var(--gradient-dark);
  color: var(--text-primary);
}

.section-light {
  background:
    radial-gradient(circle at top left, rgba(141, 198, 63, 0.1), transparent 24%),
    linear-gradient(180deg, #f8fbf7 0%, #edf3ed 100%);
  color: var(--text-dark);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 18px;
}

.section-label::before {
  content: "";
  width: 36px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.section-title {
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.95;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.section-subtitle {
  margin-top: 18px;
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 760px;
  color: inherit;
  opacity: 0.78;
}

.section-head {
  margin-bottom: 60px;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 56px;
  padding: 0 28px;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  overflow: hidden;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
  will-change: transform;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  color: #0d130d;
  background: var(--gradient-primary);
  box-shadow:
    0 12px 35px rgba(141, 198, 63, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.btn--primary:hover {
  box-shadow:
    0 18px 45px rgba(141, 198, 63, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.btn--secondary {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.11);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn--large {
  min-height: 62px;
  padding: 0 34px;
  font-size: 1rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--color-primary);
  transition: gap var(--transition-fast), opacity var(--transition-fast);
}

.text-link:hover {
  gap: 14px;
  opacity: 0.9;
}

.reveal {
  opacity: 0;
  transform: translateY(42px);
  transition:
    opacity 0.85s cubic-bezier(0.2, 1, 0.22, 1),
    transform 0.85s cubic-bezier(0.2, 1, 0.22, 1);
  will-change: transform, opacity;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  z-index: 2000;
  background: linear-gradient(90deg, #b6de78 0%, #8dc63f 45%, #6fa52a 100%);
  box-shadow: 0 0 24px rgba(141, 198, 63, 0.6);
  pointer-events: none;
}

.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(141, 198, 63, 0.16) 0%, rgba(141, 198, 63, 0.05) 38%, transparent 72%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: screen;
  opacity: 0.8;
  filter: blur(10px);
}

.site-loader {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at center, rgba(141, 198, 63, 0.08), transparent 28%),
    linear-gradient(180deg, #091009 0%, #0d140d 100%);
  transition: opacity 0.7s ease, visibility 0.7s ease;
}

.site-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.site-loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.site-loader__line {
  position: relative;
  width: 180px;
  height: 2px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
  border-radius: 999px;
}

.site-loader__line::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: var(--gradient-primary);
  box-shadow: 0 0 24px rgba(141, 198, 63, 0.65);
  animation: loaderSlide 1.5s ease-in-out infinite;
}

.site-loader__text {
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
}

.tilt-card,
.magnetic-card {
  transform-style: preserve-3d;
  will-change: transform;
}

@keyframes loaderSlide {
  0% {
    transform: translateX(-120%);
  }
  50% {
    transform: translateX(120%);
  }
  100% {
    transform: translateX(280%);
  }
}

@media (max-width: 1024px) {
  :root {
    --header-height: 82px;
  }

  .cursor-glow {
    display: none;
  }

  .section-head {
    margin-bottom: 42px;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 18px;
  }

  .section-title {
    line-height: 1.02;
  }

  .btn,
  .btn--large {
    width: 100%;
    min-height: 56px;
    padding: 0 22px;
  }
}