/* ============================================
   COSSPY — Landing Page Styles
   ============================================ */

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

:root {
  --primary:       #2563EB;
  --primary-dark:  #1D4ED8;
  --primary-light: #EFF6FF;
  --accent:        #10B981;
  --accent-dark:   #059669;
  --warning:       #F59E0B;
  --dark:          #0F172A;
  --text:          #1E293B;
  --muted:         #64748B;
  --border:        #E2E8F0;
  --surface:       #F8FAFC;
  --white:         #FFFFFF;
  --gradient:      linear-gradient(135deg, #1D4ED8 0%, #2563EB 50%, #0EA5E9 100%);
  --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:        0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:     0 20px 40px rgba(37,99,235,.15);
  --radius:        12px;
  --radius-lg:     20px;
  --transition:    .25s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---------- Utility ---------- */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 96px 0; }
.section--alt { background: var(--surface); }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-light); color: var(--primary);
  font-size: .75rem; font-weight: 600; letter-spacing: .05em;
  text-transform: uppercase; padding: 6px 14px; border-radius: 50px;
  margin-bottom: 16px;
}

.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 800; color: var(--dark); line-height: 1.2; margin-bottom: 16px; }
.section-header p  { font-size: 1.1rem; color: var(--muted); max-width: 580px; margin: 0 auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: .95rem; font-weight: 600; padding: 14px 28px;
  border-radius: var(--radius); border: 2px solid transparent;
  cursor: pointer; transition: all var(--transition); white-space: nowrap;
}
.btn-primary {
  background: var(--primary); color: var(--white);
  box-shadow: 0 4px 14px rgba(37,99,235,.35);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37,99,235,.4); }

.btn-outline {
  background: transparent; color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover { background: var(--primary-light); }

.btn-white {
  background: var(--white); color: var(--primary);
  box-shadow: var(--shadow);
}
.btn-white:hover { background: var(--primary-light); transform: translateY(-2px); }

.btn-ghost { background: rgba(255,255,255,.12); color: var(--white); border-color: rgba(255,255,255,.3); }
.btn-ghost:hover { background: rgba(255,255,255,.22); }

.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: 14px; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow); }

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.5rem; font-weight: 900; color: var(--primary);
}
.nav-logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--gradient); display: flex; align-items: center;
  justify-content: center; color: white; font-size: 1.1rem;
}

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: .9rem; font-weight: 500; color: var(--muted); transition: color var(--transition); }
.nav-links a:hover { color: var(--primary); }

.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-cta { padding: 10px 22px; font-size: .875rem; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--dark); border-radius: 2px;
  transition: all var(--transition); margin: 5px 0;
}

/* ---------- Hero ---------- */
.hero {
  padding: 160px 0 96px;
  background: var(--gradient);
  position: relative; overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
  position: relative; z-index: 1;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.15); color: var(--white);
  font-size: .8rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  padding: 8px 16px; border-radius: 50px; border: 1px solid rgba(255,255,255,.25);
  margin-bottom: 24px;
}
.hero-badge span { width: 8px; height: 8px; border-radius: 50%; background: #4ADE80; animation: pulse 2s infinite; }

@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.6;transform:scale(1.3)} }

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 900; color: var(--white);
  line-height: 1.1; margin-bottom: 20px;
}
.hero h1 em { font-style: normal; color: #93C5FD; }

.hero-sub {
  font-size: 1.125rem; color: rgba(255,255,255,.82);
  max-width: 520px; margin-bottom: 36px; line-height: 1.7;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }

.hero-trust { display: flex; flex-wrap: wrap; gap: 20px; }
.trust-item { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.75); font-size: .875rem; }
.trust-item svg { color: #4ADE80; flex-shrink: 0; }

/* Hero visual */
.hero-visual { position: relative; display: flex; justify-content: center; }

.dashboard-mockup {
  background: white; border-radius: 20px; padding: 24px;
  box-shadow: 0 40px 80px rgba(0,0,0,.3);
  width: 100%; max-width: 440px;
  animation: float 4s ease-in-out infinite;
}

@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }

.mockup-header {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 20px; padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.mockup-dot { width: 10px; height: 10px; border-radius: 50%; }
.mockup-dot:nth-child(1){background:#FF5F57}
.mockup-dot:nth-child(2){background:#FFBD2E}
.mockup-dot:nth-child(3){background:#28C840}
.mockup-title { margin-left: 8px; font-size: .8rem; color: var(--muted); font-weight: 500; }

.kpi-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-bottom: 20px; }
.kpi-card { background: var(--surface); border-radius: 10px; padding: 14px 12px; }
.kpi-label { font-size: .7rem; color: var(--muted); margin-bottom: 4px; }
.kpi-value { font-size: 1.1rem; font-weight: 800; color: var(--dark); }
.kpi-value.green { color: var(--accent); }
.kpi-value.blue  { color: var(--primary); }
.kpi-value.amber { color: var(--warning); }

.chart-bar-row { display: flex; align-items: flex-end; gap: 6px; height: 60px; margin-bottom: 16px; }
.bar {
  flex: 1; border-radius: 6px 6px 0 0;
  background: var(--primary-light);
  transition: height .3s ease;
}
.bar.active { background: var(--primary); }

.invoice-list { display: flex; flex-direction: column; gap: 8px; }
.invoice-item {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--surface); border-radius: 8px; padding: 10px 12px;
}
.invoice-item-left { display: flex; align-items: center; gap: 10px; }
.invoice-icon { width: 30px; height: 30px; border-radius: 8px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; font-size: .9rem; }
.invoice-name { font-size: .8rem; font-weight: 600; color: var(--dark); }
.invoice-date { font-size: .7rem; color: var(--muted); }
.invoice-amount { font-size: .85rem; font-weight: 700; color: var(--accent); }
.invoice-status { font-size: .65rem; padding: 3px 8px; border-radius: 50px; background: #D1FAE5; color: var(--accent-dark); font-weight: 600; }

/* Floating badges */
.badge-float {
  position: absolute; background: white; border-radius: 12px; padding: 10px 14px;
  box-shadow: var(--shadow); display: flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 600; color: var(--dark);
  animation: float 4s ease-in-out infinite;
}
.badge-float:nth-child(2) { top: 10%; right: -20px; animation-delay: .5s; }
.badge-float:nth-child(3) { bottom: 20%; left: -24px; animation-delay: 1s; }
.badge-float .icon { font-size: 1.2rem; }

/* ---------- Problems ---------- */
.problems-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }

.problem-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px 28px;
  transition: all var(--transition); position: relative; overflow: hidden;
}
.problem-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, #EF4444, #F97316);
  border-radius: 4px 4px 0 0;
}
.problem-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }

.problem-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: #FEF2F2; color: #DC2626;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.problem-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--dark); margin-bottom: 12px; }
.problem-card p  { color: var(--muted); font-size: .93rem; line-height: 1.65; }

/* ---------- Features ---------- */
.features-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 32px; }

.feature-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px 36px;
  transition: all var(--transition); display: flex; gap: 24px; align-items: flex-start;
}
.feature-card:hover { box-shadow: var(--shadow-lg); border-color: var(--primary); transform: translateY(-4px); }

.feature-icon {
  width: 56px; height: 56px; flex-shrink: 0; border-radius: 14px;
  background: var(--gradient); display: flex; align-items: center;
  justify-content: center; font-size: 1.5rem; color: white;
  box-shadow: 0 8px 20px rgba(37,99,235,.3);
}

.feature-body h3 { font-size: 1.15rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.feature-body p  { color: var(--muted); font-size: .93rem; line-height: 1.65; margin-bottom: 14px; }
.feature-tag {
  display: inline-block; font-size: .75rem; font-weight: 600;
  padding: 4px 12px; border-radius: 50px;
  background: var(--primary-light); color: var(--primary);
}

/* ---------- How it works ---------- */
.steps-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 40px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute; top: 44px; left: calc(16.66% + 20px); right: calc(16.66% + 20px);
  height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent));
}

.step-card { text-align: center; padding: 0 16px; }

.step-number {
  width: 88px; height: 88px; border-radius: 50%;
  background: var(--gradient); color: white;
  font-size: 1.75rem; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px; box-shadow: 0 8px 24px rgba(37,99,235,.3);
  position: relative; z-index: 1;
}

.step-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--dark); margin-bottom: 12px; }
.step-card p  { color: var(--muted); font-size: .93rem; line-height: 1.65; }
.step-time {
  display: inline-block; margin-top: 14px;
  font-size: .8rem; font-weight: 600; color: var(--accent);
  background: #D1FAE5; padding: 4px 12px; border-radius: 50px;
}

.steps-result {
  text-align: center; margin-top: 56px;
  background: var(--gradient); border-radius: var(--radius-lg);
  padding: 28px 32px; color: white;
}
.steps-result strong { font-size: 1.2rem; }

/* ---------- Pricing ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }

.pricing-card {
  background: var(--white); border: 2px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px 32px;
  transition: all var(--transition); position: relative;
  display: flex; flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--primary);
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.popular-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: white;
  font-size: .75rem; font-weight: 700; letter-spacing: .05em;
  padding: 6px 18px; border-radius: 50px;
  white-space: nowrap;
}

.pricing-card:hover:not(.featured) { box-shadow: var(--shadow-lg); border-color: var(--primary); }

.plan-icon { font-size: 2rem; margin-bottom: 12px; }
.plan-name { font-size: 1rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.plan-target { font-size: .85rem; color: var(--muted); margin-bottom: 24px; }
.plan-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 8px; }
.plan-price .amount { font-size: 2.5rem; font-weight: 900; color: var(--dark); }
.plan-price .currency { font-size: 1rem; font-weight: 600; color: var(--muted); }
.plan-price .period { font-size: .875rem; color: var(--muted); }
.plan-price-note { font-size: .8rem; color: var(--muted); margin-bottom: 28px; }

.plan-features { flex: 1; margin-bottom: 32px; display: flex; flex-direction: column; gap: 12px; }
.plan-feature { display: flex; align-items: flex-start; gap: 10px; font-size: .9rem; color: var(--text); }
.plan-feature .check { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.plan-feature .cross { color: #CBD5E1; flex-shrink: 0; margin-top: 2px; }

.plan-cta { width: 100%; justify-content: center; }
.pricing-note { text-align: center; margin-top: 36px; color: var(--muted); font-size: .9rem; }
.pricing-note span { color: var(--primary); font-weight: 600; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }

.faq-item {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); }

.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 22px 28px; background: none; border: none; cursor: pointer;
  font-size: 1rem; font-weight: 600; color: var(--dark); text-align: left;
  gap: 16px;
}
.faq-icon {
  width: 28px; height: 28px; border-radius: 50%; background: var(--primary-light);
  color: var(--primary); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 1.2rem; transition: transform var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .35s ease, padding .25s ease;
  padding: 0 28px;
}
.faq-answer p { color: var(--muted); line-height: 1.75; font-size: .95rem; padding-bottom: 22px; }
.faq-item.open .faq-answer { max-height: 300px; }

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: var(--gradient); padding: 96px 0;
  text-align: center; position: relative; overflow: hidden;
}
.cta-banner::after {
  content: ''; position: absolute;
  top: -50%; right: -10%; width: 500px; height: 500px; border-radius: 50%;
  background: rgba(255,255,255,.05);
}
.cta-banner h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); font-weight: 900; color: white; margin-bottom: 16px; }
.cta-banner p { font-size: 1.1rem; color: rgba(255,255,255,.8); margin-bottom: 36px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-banner .hero-actions { justify-content: center; }
.cta-banner .trust-item { color: rgba(255,255,255,.7); }
.cta-banner .hero-trust { justify-content: center; }

/* ---------- Footer ---------- */
.footer {
  background: var(--dark); color: rgba(255,255,255,.7); padding: 64px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }

.footer-brand .nav-logo { color: white; margin-bottom: 16px; font-size: 1.35rem; }
.footer-brand p { font-size: .9rem; line-height: 1.7; max-width: 260px; }
.footer-socials { display: flex; gap: 12px; margin-top: 24px; }
.social-btn {
  width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition); color: rgba(255,255,255,.7);
  border: 1px solid rgba(255,255,255,.1); font-size: .85rem;
}
.social-btn:hover { background: var(--primary); color: white; }

.footer-col h4 { font-size: .85rem; font-weight: 700; color: white; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: .875rem; transition: color var(--transition); }
.footer-col ul li a:hover { color: white; }

.footer-contact-item { display: flex; gap: 10px; align-items: flex-start; font-size: .875rem; margin-bottom: 12px; }
.footer-contact-item span:first-child { flex-shrink: 0; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding-top: 28px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: gap;
  font-size: .8rem; gap: 12px;
}
.footer-bottom a { transition: color var(--transition); }
.footer-bottom a:hover { color: white; }
.footer-flag { font-size: 1rem; }

/* ---------- Contact ---------- */
.contact-wrapper {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 64px; align-items: start;
}

.contact-info h3 {
  font-size: 1.4rem; font-weight: 800; color: var(--dark); margin-bottom: 14px;
}
.contact-info > p {
  color: var(--muted); font-size: .95rem; line-height: 1.7; margin-bottom: 28px;
}

.contact-benefits { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.contact-benefit {
  display: flex; align-items: center; gap: 10px;
  font-size: .95rem; font-weight: 500; color: var(--text);
}
.contact-benefit svg { color: var(--accent); flex-shrink: 0; }

.contact-direct { display: flex; flex-direction: column; gap: 12px; }
.contact-direct-item {
  display: flex; align-items: center; gap: 10px;
  font-size: .9rem; color: var(--muted);
}
.contact-direct-item a { color: var(--primary); font-weight: 500; }
.contact-direct-item a:hover { text-decoration: underline; }

/* Form */
.contact-form {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px 36px;
  box-shadow: var(--shadow);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-group:last-of-type { margin-bottom: 0; }

.form-group label {
  font-size: .85rem; font-weight: 600; color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px;
  border: 1.5px solid var(--border); border-radius: var(--radius);
  font-size: .95rem; font-family: inherit; color: var(--text);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #A0AEC0; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
  border-color: #EF4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.1);
}

.form-group select { cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 36px;
}
.form-group textarea { resize: vertical; min-height: 88px; }

.contact-submit { width: 100%; justify-content: center; margin-top: 24px; margin-bottom: 16px; }

.form-success {
  background: #D1FAE5; color: #065F46; border: 1px solid #6EE7B7;
  border-radius: var(--radius); padding: 14px 18px;
  font-size: .9rem; font-weight: 600; text-align: center;
  margin-top: 8px;
}
.form-error {
  background: #FEE2E2; color: #991B1B; border: 1px solid #FCA5A5;
  border-radius: var(--radius); padding: 14px 18px;
  font-size: .9rem; font-weight: 600; text-align: center;
  margin-top: 8px;
}

.form-privacy { font-size: .78rem; color: var(--muted); text-align: center; margin-top: 12px; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-inner     { grid-template-columns: 1fr; text-align: center; }
  .hero-sub       { max-width: 100%; }
  .hero-actions   { justify-content: center; }
  .hero-trust     { justify-content: center; }
  .hero-visual    { display: none; }
  .pricing-card.featured { transform: none; }
  .footer-grid    { grid-template-columns: 1fr 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .section           { padding: 64px 0; }
  .nav-links, .nav-actions .btn-outline { display: none; }
  .nav-toggle        { display: block; }
  .problems-grid,
  .features-grid,
  .steps-grid        { grid-template-columns: 1fr; }
  .steps-grid::before { display: none; }
  .pricing-grid      { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .footer-grid       { grid-template-columns: 1fr; }
  .footer-bottom     { flex-direction: column; text-align: center; }
  .form-row          { grid-template-columns: 1fr; }
  .contact-form      { padding: 28px 20px; }
  .nav-menu-open .nav-links {
    display: flex; flex-direction: column; gap: 0;
    position: fixed; top: 72px; left: 0; right: 0;
    background: white; border-bottom: 1px solid var(--border);
    padding: 16px 24px;
  }
  .nav-menu-open .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 1rem; }
}