/* ==============================================
   MÀU & BIẾN CHUNG
============================================== */
:root {
  --green: #0a8d45;
  --green-dark: #066b33;
  --text: #000;
  --muted: #555;
  --line: rgba(0,0,0,0.15);
  --shadow: 0 8px 20px rgba(0,0,0,0.12);
  --glow: rgba(10,141,69,0.65);
}

/* ==============================================
   SECTION MASTER
============================================== */
#ga-master {
  background: #fff;
  padding: 70px 0 110px;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 0 24px;
}

/* ==============================================
   HERO INTRO
============================================== */
.ga-hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.ga-eyebrow {
  color: var(--green);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.ga-title {
  font-size: 34px;
  color: var(--green);
  font-weight: 800;
  margin: 8px 0 14px;
}

.ga-desc {
  color: var(--text);
  line-height: 1.65;
  margin-bottom: 18px;
}

.ga-bullet {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
}
.ga-bullet li {
  display: flex;
  gap: 10px;
  margin-bottom: 8px;
}

.tick {
  width: 18px; height: 18px;
  border-radius: 6px;
  background: var(--green);
  display: inline-block;
  position: relative;
}
.tick::after {
  content: "";
  position: absolute;
  left: 5px; top: 3px;
  width: 7px; height: 11px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg);
}

.ga-btns { display:flex; gap:12px; }

.btn-primary {
  background: var(--green);
  color:#fff;
  padding: 12px 20px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
}
.btn-primary:hover { background: var(--green-dark); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  padding: 12px 18px;
  border-radius: 12px;
  text-decoration:none;
}
.btn-ghost:hover { background: #f3f3f3; }

/* HERO RIGHT (STATS) */
.ga-hero-right {
  display: grid;
  gap: 12px;
}
.stat {
  border: 1px solid var(--line);
  padding: 14px 12px;
  border-radius: 14px;
  text-align: center;
  background: #fafafa;
}
.stat h3 {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  color: var(--green);
}
.stat p { margin: 2px 0 0; color: var(--muted); }

.stat-note {
  font-size:12px;
  color: var(--muted);
  margin-top: 6px;
}

/* ==============================================
   WORKFLOW TITLE
============================================== */
.wf-head {
  margin-top: 70px;
  text-align: center;
}
.wf-title {
  font-size: 28px;
  color: var(--green);
  font-weight: 800;
  margin-bottom: 8px;
}
.wf-sub {
  color: var(--muted);
  margin-bottom: 40px;
}

/* ==============================================
   ZIGZAG LINE INFRA
============================================== */
.wf-zigzag-line {
  width: 100%;
  height: 250px;
  margin-bottom: -140px;
}
.wf-zigzag-line svg {
  width: 100%;
  height: 250px;
}
.wf-zigzag-line path {
  fill: none;
  stroke: var(--green);
  stroke-width: 3px;
  stroke-linecap: round;
}
.wf-zigzag-line path.light {
  stroke: var(--glow);
  stroke-width: 6px;
  filter: blur(4px);
  opacity: 0.7;
  stroke-dasharray: 180;
  animation: zigzagLight 4s linear infinite;
}

@keyframes zigzagLight {
  0% { stroke-dashoffset: 180; opacity: 0; }
  20% { opacity: .9; }
  50% { opacity: 1; }
  80% { opacity: .8; }
  100% { stroke-dashoffset: -180; opacity: 0; }
}

/* ==============================================
   WORKFLOW GRID
============================================== */
.wf-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 24px;
  position: relative;
}

.wf-item {
  text-align: center;
  transition: .25s;
}
.wf-item:hover { transform: translateY(-6px); }

/* ICONS */
.wf-icon {
  width: 66px; height: 66px;
  background:#fff;
  border:3px solid var(--green);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:30px;
  color:var(--green);
  margin:0 auto 12px;
  transition:.3s;
}
.wf-item:hover .wf-icon {
  background:var(--green);
  color:#fff;
  box-shadow:0 8px 20px rgba(10,141,69,0.35);
}

/* TEXT */
.wf-item h3 {
  margin:6px 0;
  color: var(--text);
  font-size:16px;
  font-weight:700;
}
.wf-item p {
  color: var(--muted);
  font-size:14px;
  line-height:1.55;
}

/* ==============================================
   RESPONSIVE
============================================== */
@media (max-width:1024px) {
  .ga-hero {
    grid-template-columns:1fr;
  }

  .wf-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .wf-zigzag-line {
    height:180px;
    margin-bottom:-100px;
  }
}

@media (max-width:640px) {
  .wf-grid {
    grid-template-columns:1fr;
  }
  .wf-zigzag-line {
    display:none;
  }
}