/* ==========================================================
   VYOKTA HI-TECH AUTOMATION — DESIGN SYSTEM
   "Precision Industrial" — v2.0
   ========================================================== */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ---- Design Tokens ---- */
:root {
  /* Official Vyokta Brand Colors */
  --color-primary:       #014227; /* Deep Forest Green (Primary Brand & Headings) */
  --color-primary-dark:  #002C1A; /* Deepest Forest */
  --color-primary-light: #025C38; /* Medium Emerald */
  --color-emerald-accent:#059669; /* Accent Green */

  --color-gold:          #C59D27; /* Logo Precision Gold (CTAs, Accents) */
  --color-gold-hover:    #B38B1E; /* Deeper Gold on Hover */
  --color-gold-light:    #FBF6E5; /* Subtle Gold Tint */
  --color-gold-border:   rgba(197, 157, 39, 0.40);

  /* Theme Surfaces (Clean Precision Industrial) */
  --color-bg:            #FFFFFF; /* Main Canvas Background */
  --color-bg-2:          #F4F7F5; /* Soft Mint-Slate Section Canvas */
  --color-bg-3:          #E8EFEA; /* Elevated Surface / Muted Container */
  --color-bg-dark:       #01331E; /* Deep Forest Green Dark Banner Section */
  --color-bg-dark-2:     #0F241A; /* Dark Section Card Surface */
  --color-surface:       #FFFFFF; /* Crisp Card Surface */

  /* Compatibility Aliases */
  --color-orange:        #C59D27; /* Mapped to Brand Gold */
  --color-orange-dark:   #B38B1E;
  --color-blue:          #014227; /* Mapped to Brand Forest Green */
  --color-blue-dark:     #002C1A;
  --color-green:         #025C38;

  /* Typography Colors */
  --color-text:          #1C2421; /* High-contrast Charcoal Body Copy */
  --color-text-heading:  #014227; /* Forest Green for Section Headings */
  --color-text-muted:    #5E6863; /* Readable Slate-Grey Secondary Text */
  --color-text-inv:      #FFFFFF; /* White Text on Hero/Dark Sections */

  /* Borders & Dividers */
  --color-border:        #E2E8E4; /* Crisp Light Border */
  --color-border-dark:   rgba(255, 255, 255, 0.12);
  --color-border-accent: rgba(197, 157, 39, 0.35);

  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Type Scale */
  --fs-xs:   0.75rem;   /* 12px */
  --fs-sm:   0.875rem;  /* 14px */
  --fs-base: 1rem;      /* 16px */
  --fs-md:   1.125rem;  /* 18px */
  --fs-lg:   1.25rem;   /* 20px */
  --fs-xl:   1.5rem;    /* 24px */
  --fs-2xl:  1.75rem;   /* 28px */
  --fs-3xl:  2.25rem;   /* 36px */
  --fs-4xl:  2.75rem;   /* 44px */
  --fs-5xl:  3.5rem;    /* 56px */
  --fs-6xl:  4rem;      /* 64px */

  /* 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;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(1, 66, 39, 0.06);
  --shadow-md:  0 4px 14px rgba(1, 66, 39, 0.08);
  --shadow-lg:  0 10px 30px rgba(1, 66, 39, 0.12);
  --shadow-xl:  0 20px 50px rgba(1, 66, 39, 0.16);
  --shadow-glow:0 0 25px rgba(197, 157, 39, 0.35);

  /* Transitions */
  --transition-fast:  150ms ease;
  --transition-base:  250ms ease;
  --transition-slow:  400ms ease;

  /* Layout */
  --container-max: 1320px;
  --container-pad: 1.5rem;
  --header-height: 80px;
  --header-shrink: 68px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ---- Utility: Container ---- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ---- Utility: Section spacing ---- */
.section {
  padding-block: var(--space-20);
}
.section-sm { padding-block: var(--space-12); }
.section-lg { padding-block: var(--space-24); }

/* ---- Utility: Backgrounds ---- */
.bg-dark    { background: var(--color-bg-dark); }
.bg-dark-2  { background: var(--color-bg-dark-2); }
.bg-light   { background: var(--color-bg-2); }
.bg-white   { background: #FFFFFF; }
.bg-gold    { background: var(--color-gold); }

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-3);
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--color-gold);
  vertical-align: middle;
  margin-right: 8px;
}

.section-heading {
  font-size: var(--fs-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.section-sub {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.7;
}

.text-center { text-align: center; }
.text-center .section-sub { margin-inline: auto; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-gold);
  color: #FFFFFF;
  border-color: var(--color-gold);
  box-shadow: 0 4px 14px rgba(197, 157, 39, 0.35);
}
.btn-primary:hover {
  background: var(--color-gold-hover);
  border-color: var(--color-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(197, 157, 39, 0.45);
}
.btn-outline {
  background: transparent;
  color: var(--color-text-inv);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  transform: translateY(-2px);
}
.btn-outline-orange,
.btn-outline-gold {
  background: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}
.btn-outline-orange:hover,
.btn-outline-gold:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: #FFFFFF;
  transform: translateY(-2px);
}
.btn-outline-green {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-green:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}
.btn-sm { padding: 0.5rem 1.25rem; font-size: var(--fs-xs); }
.btn-lg { padding: 1rem 2.25rem; font-size: var(--fs-base); }

/* Arrow icon inside buttons */
.btn .arrow { transition: transform var(--transition-base); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---- Grid ---- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--space-8); }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--space-6); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); gap: var(--space-6); }

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gold);
}
.card-img { aspect-ratio: 16/10; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.card:hover .card-img img { transform: scale(1.06); }
.card-body { padding: var(--space-6); }

/* Card top-border accent on hover */
.card-accent-top {
  border-top: 3px solid transparent;
  transition: border-color var(--transition-base);
}
.card-accent-top:hover { border-top-color: var(--color-gold); }

/* ---- Divider ---- */
.divider-angle {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}
.divider-angle svg {
  display: block;
  width: 100%;
  height: 60px;
}

/* ---- Badge / Tag ---- */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.badge-orange,
.badge-gold   { background: rgba(197,157,39,0.15); color: var(--color-gold); border: 1px solid rgba(197,157,39,0.25); }
.badge-blue,
.badge-green  { background: rgba(2,92,56,0.25); color: var(--color-emerald-light); border: 1px solid rgba(16,185,129,0.25); }

/* ---- Icon Box ---- */
.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(197,157,39,0.12);
  border: 1px solid rgba(197,157,39,0.2);
  color: var(--color-gold);
  font-size: 1.5rem;
  flex-shrink: 0;
  transition: background var(--transition-base), border-color var(--transition-base);
}
.icon-box svg { width: 28px; height: 28px; stroke: var(--color-gold); fill: none; }
.card:hover .icon-box { background: var(--color-gold); border-color: var(--color-gold); }
.card:hover .icon-box svg { stroke: #fff; }

/* ---- Stat Counter ---- */
.stat-item {
  text-align: center;
}
.stat-number {
  font-family: var(--font-heading);
  font-size: var(--fs-5xl);
  font-weight: 700;
  color: var(--color-orange);
  line-height: 1;
  display: block;
}
.stat-label {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-2);
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-bg-2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-orange); }

/* ---- Selection ---- */
::selection { background: var(--color-orange); color: #fff; }

/* ---- Focus ---- */
:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- Animations (base classes — triggered by JS) ---- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in {
  opacity: 0;
  transition: opacity 0.7s ease;
}
.fade-in.is-visible { opacity: 1; }

/* Stagger delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ---- Responsive Helpers ---- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
  .section-heading { font-size: var(--fs-3xl); }
}
@media (max-width: 768px) {
  :root { --container-pad: 1rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding-block: var(--space-16); }
  .section-heading { font-size: var(--fs-2xl); }
}
@media (max-width: 480px) {
  .section-heading { font-size: var(--fs-xl); }
}