/* ============================================================
   KOFFEX DIGITAL — BASE.CSS
   Emerald Matrix Premium Design System
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&family=Space+Mono:wght@400;700&display=swap');

/* --- Design Tokens --- */
:root {
  /* Colors */
  --clr-black:     #050505;
  --clr-bg:        #080808;
  --clr-bg2:       #0d0d0d;
  --clr-bg3:       #111111;
  --clr-card:      #0f0f0f;
  --clr-border:    rgba(0, 200, 83, 0.15);
  --clr-border-hover: rgba(0, 200, 83, 0.5);

  --clr-emerald:   #00C853;
  --clr-emerald-dim: #00a844;
  --clr-emerald-glow: rgba(0, 200, 83, 0.25);
  --clr-emerald-subtle: rgba(0, 200, 83, 0.07);

  --clr-gold:      #FFD700;
  --clr-gold-dim:  #c9a800;
  --clr-gold-glow: rgba(255, 215, 0, 0.2);

  --clr-white:     #ffffff;
  --clr-offwhite:  #e8eaed;
  --clr-grey:      #8a9099;
  --clr-grey-dim:  #555b63;

  /* Typography */
  --font-head:  'Space Grotesk', sans-serif;
  --font-body:  'Inter', sans-serif;
  --font-mono:  'Space Mono', monospace;

  /* Type Scale */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;
  --text-7xl:  4.5rem;
  --text-hero: clamp(3rem, 7vw, 6rem);

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

  /* Effects */
  --radius-sm:  4px;
  --radius:     8px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;

  /* Shadows */
  --shadow-emerald: 0 0 30px rgba(0, 200, 83, 0.15), 0 0 60px rgba(0, 200, 83, 0.05);
  --shadow-gold:    0 0 30px rgba(255, 215, 0, 0.15), 0 0 60px rgba(255, 215, 0, 0.05);
  --shadow-card:    0 4px 24px rgba(0, 0, 0, 0.6);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--clr-bg);
  color: var(--clr-offwhite);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none; /* custom cursor */
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
input, textarea, select { font-family: inherit; }

/* --- Custom Cursor --- */
#cursor-dot {
  width: 8px; height: 8px;
  background: var(--clr-emerald);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  box-shadow: 0 0 10px var(--clr-emerald), 0 0 20px var(--clr-emerald-glow);
}
#cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid rgba(0, 200, 83, 0.6);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: all 0.12s ease;
}
body:not(.cursor-loaded) #cursor-dot,
body:not(.cursor-loaded) #cursor-ring { opacity: 0; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.1;
  color: var(--clr-white);
  letter-spacing: -0.02em;
}
h1 { font-size: var(--text-hero); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.875rem); }
h4 { font-size: var(--text-xl); }
p  { color: var(--clr-grey); line-height: 1.7; }

.mono { font-family: var(--font-mono); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-emerald);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px; height: 1px;
  background: var(--clr-emerald);
}
.emerald { color: var(--clr-emerald); }
.gold { color: var(--clr-gold); }
.grey { color: var(--clr-grey); }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
}
.section { padding: var(--sp-24) 0; }
.section-sm { padding: var(--sp-16) 0; }
.section-lg { padding: var(--sp-32) 0; }

/* --- Grid --- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-8); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--sp-6); }
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.85rem 2rem;
  font-family: var(--font-head);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  white-space: nowrap;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}
.btn-primary {
  background: var(--clr-emerald);
  color: #000;
  border: 1px solid var(--clr-emerald);
}
.btn-primary::before {
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
}
.btn-primary:hover { background: #00e060; box-shadow: 0 0 30px rgba(0,200,83,0.5); transform: translateY(-2px); }
.btn-primary:hover::before { opacity: 1; pointer-events: none; }

.btn-outline {
  background: transparent;
  color: var(--clr-emerald);
  border: 1px solid var(--clr-emerald);
}
.btn-outline:hover {
  background: var(--clr-emerald-subtle);
  box-shadow: 0 0 20px var(--clr-emerald-glow);
  transform: translateY(-2px);
}

.btn-gold {
  background: var(--clr-gold);
  color: #000;
  border: 1px solid var(--clr-gold);
}
.btn-gold:hover {
  background: #ffe033;
  box-shadow: 0 0 30px rgba(255,215,0,0.5);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--clr-grey);
  border: 1px solid rgba(255,255,255,0.1);
}
.btn-ghost:hover {
  color: var(--clr-white);
  border-color: rgba(255,255,255,0.3);
}

/* --- Cards --- */
.card {
  background: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: var(--sp-8);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-emerald);
  transform: translateY(-4px);
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--clr-emerald-subtle);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.card:hover::before { opacity: 1; }

/* Circuit board hover pattern */
.card-circuit::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0,200,83,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,83,0.06) 1px, transparent 1px);
  background-size: 20px 20px;
}
.card-circuit:hover::after { opacity: 1; }

/* --- Section Headers --- */
.section-header {
  margin-bottom: var(--sp-16);
}
.section-header h2 { margin-bottom: var(--sp-4); }
.section-header p { max-width: 600px; font-size: var(--text-lg); }
.section-header.center { text-align: center; }
.section-header.center p { margin: 0 auto; }

/* --- Stat Cards --- */
.stat-number {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--clr-emerald);
  line-height: 1;
  display: block;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-grey);
  margin-top: var(--sp-2);
  display: block;
}

/* --- Dividers --- */
.divider {
  width: 60px; height: 2px;
  background: var(--clr-emerald);
  margin: var(--sp-4) 0;
}
.divider.center { margin: var(--sp-4) auto; }
.divider.gold { background: var(--clr-gold); }

/* --- Gold Shimmer --- */
@keyframes goldShimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}
.gold-shimmer {
  background: linear-gradient(90deg,
    var(--clr-gold-dim) 0%,
    #fff5c0 40%,
    var(--clr-gold) 50%,
    #fff5c0 60%,
    var(--clr-gold-dim) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: goldShimmer 4s linear infinite;
}

/* --- Terminal Text --- */
.terminal-line {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--clr-emerald);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.terminal-line::before { content: '> '; color: var(--clr-emerald-dim); }

/* --- Glowing Line --- */
.glow-line {
  width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-emerald), transparent);
  opacity: 0.3;
}

/* --- Image Containers --- */
.img-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--clr-border);
}
.img-container img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.img-container:hover img { transform: scale(1.04); }
.img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,200,83,0.1), rgba(0,0,0,0.3));
  pointer-events: none;
}

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.badge-emerald {
  background: rgba(0,200,83,0.12);
  color: var(--clr-emerald);
  border: 1px solid rgba(0,200,83,0.3);
}
.badge-gold {
  background: rgba(255,215,0,0.1);
  color: var(--clr-gold);
  border: 1px solid rgba(255,215,0,0.3);
}

/* --- Forms --- */
.form-group { display: flex; flex-direction: column; gap: var(--sp-2); }
.form-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-emerald);
}
.form-input,
.form-select,
.form-textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--clr-white);
  font-size: var(--text-sm);
  transition: var(--transition);
  width: 100%;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--clr-emerald);
  box-shadow: 0 0 0 3px var(--clr-emerald-glow);
  background: rgba(0,200,83,0.04);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--clr-grey-dim); }
.form-select option { background: #111; color: var(--clr-white); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

/* Checkbox */
.form-checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4);
  background: rgba(0,200,83,0.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
}
.form-checkbox-group input[type="checkbox"] {
  width: 20px; height: 20px;
  min-width: 20px;
  accent-color: var(--clr-emerald);
  margin-top: 2px;
  cursor: pointer;
}
.form-checkbox-group label {
  font-size: var(--text-xs);
  color: var(--clr-grey);
  line-height: 1.5;
  cursor: pointer;
}
.form-checkbox-group label a { color: var(--clr-emerald); text-decoration: underline; }

/* Multi-select checkboxes */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-2);
}
@media (max-width: 640px) { .checkbox-grid { grid-template-columns: 1fr; } }
.checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.6rem 0.75rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  font-size: var(--text-sm);
  color: var(--clr-grey);
}
.checkbox-item:hover { border-color: var(--clr-emerald); color: var(--clr-offwhite); background: var(--clr-emerald-subtle); }
.checkbox-item input { accent-color: var(--clr-emerald); cursor: pointer; }

/* --- AOS defaults --- */
[data-aos] { opacity: 0; transition-property: opacity, transform; }
[data-aos].aos-animate { opacity: 1; }

/* --- Scroll margin for sticky nav --- */
[id] { scroll-margin-top: 80px; }

/* --- Responsive base --- */
html, body { overflow-x: hidden; }
@media (max-width: 768px) {
  .section { padding: var(--sp-16) 0; }
  .section-lg { padding: var(--sp-20) 0; }
  .container { padding: 0 var(--sp-4); }
  h2 { font-size: var(--text-4xl); }
}

/* --- Page hero base --- */
.page-hero {
  min-height: 60vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: var(--sp-32) 0 var(--sp-24);
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.page-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5,5,5,0.92) 0%, rgba(5,5,5,0.75) 100%);
}
.page-hero-content {
  position: relative;
  z-index: 2;
}

/* --- Clip path wipe animation --- */
@keyframes clipWipe {
  from { clip-path: inset(0 100% 0 0); }
  to   { clip-path: inset(0 0% 0 0); }
}
.clip-wipe { animation: clipWipe 0.8s cubic-bezier(0.77, 0, 0.175, 1) forwards; }

/* --- Glow pulse --- */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 15px rgba(0,200,83,0.3); }
  50%       { box-shadow: 0 0 40px rgba(0,200,83,0.6), 0 0 80px rgba(0,200,83,0.2); }
}
.glow-pulse { animation: glowPulse 3s ease-in-out infinite; }

/* --- Utility --- */
.text-center { text-align: center; }
.mt-4  { margin-top: var(--sp-4); }
.mt-6  { margin-top: var(--sp-6); }
.mt-8  { margin-top: var(--sp-8); }
.mt-12 { margin-top: var(--sp-12); }
.mb-4  { margin-bottom: var(--sp-4); }
.mb-6  { margin-bottom: var(--sp-6); }
.mb-8  { margin-bottom: var(--sp-8); }
.flex  { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.gap-8 { gap: var(--sp-8); }
.relative { position: relative; }
.overflow-hidden { overflow: hidden; }


/* ─── Dot grid background pattern (premium, subtle) ─── */
.dot-grid-bg {
  background-image: radial-gradient(rgba(0, 200, 83, 0.12) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* ─── Hero always visible — no AOS on first viewport ─── */
.hero-content > *,
.page-hero-content > * {
  opacity: 1 !important;
  transform: none !important;
}

/* ─── Improved card hover — no transform on mobile to prevent jank ─── */
@media (hover: none) {
  .card:hover { transform: none; }
}

/* ─── Line clamp utilities ─── */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─── Section bg variations ─── */
.bg-black  { background: #000; }
.bg-dark   { background: var(--clr-bg); }
.bg-dark2  { background: var(--clr-bg2); }
.bg-card   { background: var(--clr-card); }
.bg-gold-subtle { background: linear-gradient(135deg, #0a0a0a 0%, #0d0a00 100%); }

/* ─── Gold border left accent ─── */
.gold-accent-left {
  border-left: 3px solid var(--clr-gold);
  padding-left: var(--sp-6);
}

/* ─── Stat chip ─── */
.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.4rem 1rem;
  background: rgba(0,200,83,0.06);
  border: 1px solid rgba(0,200,83,0.2);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--clr-offwhite);
  white-space: nowrap;
}

/* ─── Case study overlay card ─── */
.cs-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  height: 300px;
  cursor: pointer;
  border: 1px solid var(--clr-border);
  transition: var(--transition);
}
.cs-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-emerald); border-color: var(--clr-border-hover); }
.cs-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}
.cs-card:hover .cs-card-bg { transform: scale(1.05); }
.cs-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5,5,5,0.92) 40%, rgba(5,5,5,0.4) 100%);
}
.cs-card-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--sp-6);
}
.cs-card-title {
  font-family: var(--font-head);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: var(--sp-2);
}
.cs-card-metric {
  font-family: var(--font-head);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--clr-emerald);
  display: block;
}