/* ── FieldFuel Landing Page ── */

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

:root {
  --bg: #0a0a08;
  --bg-2: #141410;
  --bg-3: #1c1c17;
  --fg: #f4f0e8;
  --fg-muted: #8a8780;
  --accent: #d4940a;
  --accent-bright: #f5b838;
  --accent-dim: rgba(212,148,10,0.12);
  --accent-2: #a67408;
  --border: rgba(244,240,232,0.08);
  --border-accent: rgba(212,148,10,0.25);
  --success: #4caf50;
  --error: #e53935;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 8px;
  --max-w: 1120px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 40px;
  background: rgba(10,10,8,0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-decoration: none;
}
.nav-logo span { color: var(--accent); }
.nav-cta {
  background: var(--accent);
  color: #0a0a08;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13px;
  padding: 8px 18px;
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--accent-bright); }

/* ── Section Utility ── */
.section {
  padding: 100px 40px;
}
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.section-label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}
.section-sub {
  color: var(--fg-muted);
  font-size: 17px;
  line-height: 1.65;
  max-width: 560px;
}
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-accent), transparent);
  margin: 0 40px;
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 40px 80px;
}
.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 700px;
  height: 700px;
  background: radial-gradient(ellipse, rgba(212,148,10,0.07) 0%, transparent 65%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-accent), transparent);
  opacity: 0.4;
}
.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-content { position: relative; z-index: 1; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 28px;
}
.hero-eyebrow-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 80px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 24px;
}
.hero-title .line-block { display: block; }
.hero-title .accent { color: var(--accent-bright); }
.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--accent);
  color: #0a0a08;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 32px;
  border-radius: var(--radius);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  padding: 14px 24px;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.15s;
}
.btn-ghost:hover { border-color: var(--fg-muted); transform: translateY(-1px); }
.hero-product { position: relative; display: flex; align-items: center; justify-content: center; }
.hero-can-wrap {
  position: relative;
  width: 100%;
  max-width: 420px;
}
.hero-can-img {
  width: 100%;
  border-radius: 12px;
  filter: drop-shadow(0 32px 80px rgba(212,148,10,0.2));
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.can-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(ellipse at center, rgba(212,148,10,0.15) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* ── Stats Bar ── */
.stats-bar {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px;
}
.stats-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.stat-item { text-align: center; }
.stat-value {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--accent-bright);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

/* ── Ingredients ── */
.ingredients { background: var(--bg); }
.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}
.ingredient-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 28px;
  transition: border-color 0.25s, transform 0.2s;
}
.ingredient-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
}
.ingredient-icon {
  width: 52px; height: 52px;
  background: var(--accent-dim);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}
.ingredient-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.ingredient-desc {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}
.ingredient-tag {
  display: inline-block;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-bright);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 16px;
}

/* ── Proof/Testimonials ── */
.proof { background: var(--bg-2); }
.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 60px;
}
.testimonial-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  position: relative;
}
.testimonial-quote {
  font-size: 17px;
  line-height: 1.65;
  color: var(--fg);
  margin-bottom: 24px;
  font-style: italic;
}
.testimonial-quote::before { content: '\u201C'; }
.testimonial-quote::after { content: '\u201D'; }
.testimonial-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px; height: 44px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--accent-bright);
}
.testimonial-name {
  font-weight: 600;
  font-size: 15px;
}
.testimonial-role {
  font-size: 13px;
  color: var(--fg-muted);
}
.stars {
  position: absolute;
  top: 28px;
  right: 28px;
  color: var(--accent-bright);
  font-size: 14px;
  letter-spacing: 2px;
}

/* ── Contact Form ── */
.contact { background: var(--bg); position: relative; }
.contact::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-accent), transparent);
  opacity: 0.4;
}
.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.contact-form {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-muted);
  letter-spacing: 0.03em;
}
.form-input, .form-textarea {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 16px;
  transition: border-color 0.2s;
  outline: none;
  width: 100%;
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--accent);
  background: var(--bg-3);
}
.form-textarea { resize: vertical; min-height: 100px; }
.form-submit {
  background: var(--accent);
  color: #0a0a08;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  padding: 16px 32px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  width: 100%;
}
.form-submit:hover { background: var(--accent-bright); transform: translateY(-1px); }
.form-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.form-success {
  display: none;
  background: rgba(76,175,80,0.1);
  border: 1px solid rgba(76,175,80,0.3);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--success);
  font-weight: 600;
}
.form-error-msg {
  display: none;
  background: rgba(229,57,53,0.1);
  border: 1px solid rgba(229,57,53,0.3);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  color: var(--error);
  font-size: 14px;
}

/* ── Footer ── */
.footer {
  padding: 40px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--fg);
}
.footer-brand span { color: var(--accent); }
.footer-copy { font-size: 13px; color: var(--fg-muted); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav { padding: 16px 20px; }
  .section { padding: 72px 20px; }
  .hero { padding: 100px 20px 60px; min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .hero-title { font-size: 48px; }
  .hero-sub { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-product { order: -1; }
  .hero-can-wrap { max-width: 280px; margin: 0 auto; }
  .stats-inner { grid-template-columns: 1fr; gap: 24px; }
  .ingredients-grid { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 40px; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
  .hero-actions { flex-direction: column; }
}