/* ============================================================
   HARITHA KAWSHAN PIYUMANTHA — PERSONAL WEBSITE
   Editorial · Minimal · Inspired by Sebastian Brooks Portfolio
   ============================================================ */

/* ── RESET & BASE ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

:root {
  --bg:          #FAFAF9;
  --bg-alt:      #F3F2EE;
  --bg-dark:     #0F0F11;
  --ink:         #111111;
  --ink-2:       #4A4A4A;
  --ink-3:       #888888;
  --border:      #E6E6E1;
  --border-dark: rgba(255,255,255,0.1);
  --accent:      #111111;
  --radius-sm:   4px;
  --radius-md:   6px;
  --radius-pill: 4px;
  --nav-h:       60px;
  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --t:           0.2s;

  --font-serif:  'DM Serif Display', Georgia, serif;
  --font-sans:   'Inter', system-ui, sans-serif;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

::selection { background: var(--ink); color: var(--bg); }
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }

/* ── LAYOUT ───────────────────────────────────────────────── */
.container {
  width: min(1080px, 90vw);
  margin: 0 auto;
}
.section { padding: 60px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: #f5f4f1; }

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t) var(--ease);
  border: none;
  white-space: nowrap;
}
.btn-dark {
  background: var(--ink);
  color: #fff;
}
.btn-dark:hover { background: #333; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--ink); }
.btn-light {
  background: #fff;
  color: var(--ink);
}
.btn-light:hover { background: #f0eee9; }

/* ── NAVIGATION ───────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: var(--nav-h);
  z-index: 999;
  /* Ultra-transparent but high blur for elegant glassmorphism blending */
  background: rgba(244, 244, 240, 0.4);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(17, 17, 17, 0.05); /* Extremely subtle border */
  transition: background var(--t);
}

.nav-inner {
  height: 100%;
  width: min(1160px, 90vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  background: var(--ink);
  color: #fff;
  border-radius: 50%;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  flex-shrink: 0;
  transition: transform var(--t);
}
.nav-logo:hover { transform: scale(1.08); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}
.nav-links a {
  font-size: 0.8rem;
  color: var(--ink-2);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: color var(--t), background var(--t);
}
.nav-links a:hover,
.nav-links a.active { color: var(--ink); background: rgba(17, 17, 17, 0.04); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-location {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
}
.nav-city { font-size: 0.72rem; color: var(--ink-3); }
.nav-time { font-size: 0.78rem; font-weight: 600; color: var(--ink); }

.nav-availability {
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 500;
  background: rgba(17, 17, 17, 0.02); /* Glassy soft background instead of solid color */
  border: 1px solid rgba(17, 17, 17, 0.1);
  color: var(--ink);
  transition: all var(--t);
  white-space: nowrap;
}
.nav-availability:hover { background: var(--ink); color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: all var(--t);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }

/* ── SOCIAL SIDEBAR ───────────────────────────────────────── */
.social-sidebar {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 100;
}
.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--ink-3);
  transition: all var(--t);
}
.social-link:hover { background: var(--ink); border-color: var(--ink); color: #fff; transform: scale(1.1); }

/* ── HERO ─────────────────────────────────────────────────── */
#hero {
  min-height: calc(100vh - 40px);
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 5vw 60px;
  position: relative;
  overflow: hidden;
}

@keyframes orb-float-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(5vmax, -5vmax) scale(1.05); }
  66% { transform: translate(-3vmax, 3vmax) scale(0.95); }
}
@keyframes orb-float-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-4vmax, 3vmax) scale(1.1); }
  66% { transform: translate(3vmax, -4vmax) scale(0.9); }
}
@keyframes orb-float-3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(4vmax, 4vmax) scale(1.05); }
}

.hero-aurora {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.hero-aurora-item {
  position: absolute;
  filter: blur(100px);
  border-radius: 50%;
  mix-blend-mode: multiply;
  will-change: transform;
}

.orb-1 {
  width: 50vmax; height: 50vmax;
  background: rgba(0, 120, 212, 0.25); 
  top: -15vmax; left: -10vmax;
  animation: orb-float-1 20s infinite ease-in-out;
}

.orb-2 {
  width: 45vmax; height: 45vmax;
  background: rgba(102, 51, 153, 0.2);
  bottom: -15vmax; right: -10vmax;
  animation: orb-float-2 25s infinite ease-in-out;
}

.orb-3 {
  width: 40vmax; height: 40vmax;
  background: rgba(0, 0, 0, 0.08);
  top: 20%; left: 30%;
  animation: orb-float-3 22s infinite ease-in-out;
  mix-blend-mode: normal;
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(17, 17, 17, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(17, 17, 17, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 70%);
  z-index: 0;
  pointer-events: none;
}

.hero-container {
  width: min(1080px, 90vw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Left */
.hero-left { display: flex; flex-direction: column; gap: 2rem; }

.hero-avatar-wrapper {
  position: relative;
  display: inline-block;
  align-self: flex-start;
}

.hero-avatar {
  width: 88px; height: 88px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
  transition: transform var(--t);
}
.hero-avatar:hover { transform: scale(1.05) rotate(-2deg); }

.hero-avatar-badge {
  position: absolute;
  bottom: 0px;
  right: -8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  animation: floatBadge 3s ease-in-out infinite;
}

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.hero-heading {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 5vw, 4.8rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.hero-name-line { display: block; }

/* Scroll Indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 5vw;
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  z-index: 10;
  color: var(--ink-2);
}
.scroll-text {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  transform: rotate(-90deg) translateX(50%);
  transform-origin: left bottom;
  margin-left: 4px;
}
.scroll-line {
  width: 1px;
  height: 60px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 30%;
  background: var(--ink);
  animation: scrollDrop 2s cubic-bezier(0.77, 0, 0.175, 1) infinite;
}
@keyframes scrollDrop {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(350%); }
}


/* Right */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.hero-desc {
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.7;
  max-width: 420px;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding-top: 0.5rem;
}

.hero-stats-row {
  display: flex;
  gap: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
}
.hero-stat { display: flex; flex-direction: column; }
.hs-num {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--ink);
  line-height: 1;
}
.hs-label { font-size: 0.72rem; color: var(--ink-3); margin-top: 2px; }

/* ── EXPERIENCE / AWARDS ──────────────────────────────────── */
.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.col-heading {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.exp-list { display: flex; flex-direction: column; }

.exp-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--t);
  cursor: default;
}
.exp-item:first-child { border-top: 1px solid var(--border); }
.exp-item:hover { background: rgba(0,0,0,0.02); margin: 0 -0.85rem; padding-left: 0.85rem; padding-right: 0.85rem; border-radius: var(--radius-sm); border-bottom: 1px solid var(--border); }

.exp-logo-wrap {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}
.exp-logo-img {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 4px;
  border-radius: var(--radius-sm);
}
/* Letter fallback (rendered by JS when img fails) */
.exp-logo-letter {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.78rem;
  color: #fff;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}
.exp-logo-award   { background: var(--bg); border: 1px solid var(--border); font-size: 1.1rem; }


.exp-info { flex: 1; min-width: 0; }
.exp-role {
  font-size: 0.875rem;
  color: var(--ink);
  line-height: 1.4;
}
.exp-role strong { font-weight: 600; }
.exp-dates { font-size: 0.78rem; color: var(--ink-3); margin-top: 1px; }

.exp-arrow {
  font-size: 0.85rem;
  color: var(--ink-3);
  flex-shrink: 0;
  transition: transform var(--t), color var(--t);
}
.exp-item:hover .exp-arrow { color: var(--ink); transform: translate(2px, -2px); }

/* ── SERVICES ─────────────────────────────────────────────── */
.services-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.see-all-link {
  font-size: 0.875rem;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color var(--t);
}
.see-all-link:hover { color: var(--ink); }
.see-all-link span { font-size: 1rem; }

.cert-total-badge {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-3);
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
}

.services-list { display: flex; flex-direction: column; }

.service-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
  cursor: default;
}
.service-item:first-child { border-top: 1px solid var(--border); }

.service-icon {
  font-size: 1.3rem;
  padding-top: 2px;
  flex-shrink: 0;
  width: 40px;
  text-align: center;
}
.service-body { flex: 1; }
.service-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.4rem;
}
.service-desc { font-size: 0.85rem; color: var(--ink-2); line-height: 1.65; }
.service-arrow {
  font-size: 0.85rem;
  color: var(--ink-3);
  flex-shrink: 0;
  align-self: center;
  transition: transform var(--t), color var(--t);
}
.service-item:hover .service-arrow { color: var(--ink); transform: translate(2px, -2px); }

/* ── CERTIFICATIONS ───────────────────────────────────────── */
.cert-platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 1rem;
}

.cert-platform {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  background: var(--bg);
  transition: border-color var(--t), box-shadow var(--t);
}
.cert-platform:hover {
  border-color: var(--ink);
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
}

.cert-platform-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.cert-pl-logo {
  width: 38px; height: 38px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.72rem;
  flex-shrink: 0;
}
.gcp   { background: linear-gradient(135deg, #4285F4, #34A853); color: #fff; }
.azure { background: linear-gradient(135deg, #0078D4, #00BCF2); color: #fff; }
.aws   { background: linear-gradient(135deg, #FF9900, #E05500); color: #fff; }
.hw    { background: linear-gradient(135deg, #CF0A2C, #FF5050); color: #fff; }
.other { background: var(--bg-alt); color: var(--ink); border: 1px solid var(--border); }

.cert-pl-name  { font-size: 0.85rem; font-weight: 600; color: var(--ink); }
.cert-pl-count { font-size: 0.72rem; color: var(--ink-3); }

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.cert-list li {
  font-size: 0.78rem;
  color: var(--ink-2);
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.4;
}
.cert-list li:last-child { border-bottom: none; }

/* ── SKILLS ───────────────────────────────────────────────── */
.skills-editorial {
  display: flex;
  flex-direction: column;
}

.skill-group {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--border);
}
.skill-group:first-child { border-top: 1px solid var(--border); }

.skill-group-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  padding-top: 2px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.skill-tags span {
  font-size: 0.78rem;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--ink-2);
  transition: all var(--t);
  display: inline-flex;
  align-items: center;
}
.skill-tags span:hover { 
  background: var(--ink); 
  color: #fff; 
  border-color: var(--ink); 
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.skill-icon {
  width: 14px;
  height: 14px;
  margin-right: 6px;
  transition: filter var(--t);
}
.skill-tags span:hover .skill-icon {
  filter: invert(1) brightness(2);
}

.skill-icon-svg {
  width: 14px;
  height: 14px;
  margin-right: 6px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: middle;
  transform: translateY(-1px);
}
.skill-tags .tag-highlight {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

/* Education rows in skills */
.edu-editorial { display: flex; flex-direction: column; gap: 0.8rem; }
.edu-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.edu-badge-sm {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  background: var(--ink);
  color: #fff;
  margin-top: 2px;
  flex-shrink: 0;
}
.edu-degree { font-size: 0.85rem; font-weight: 600; color: var(--ink); }
.edu-uni    { font-size: 0.78rem; color: var(--ink-3); }

/* ── CONTACT & FOOTER ───────────────────────────────────────── */
.contact-footer {
  padding-bottom: 2rem;
}
.contact-wrap {
  text-align: center;
  padding: 80px 0 40px;
}
.contact-eyebrow {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 0.75rem;
}
.contact-heading {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 400;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 1.75rem;
}
.contact-meta {
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
}
.contact-time-display { font-weight: 600; color: rgba(255,255,255,0.7); }
.contact-details {
  margin-top: 0.75rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}
.contact-details a { color: rgba(255,255,255,0.6); transition: color var(--t); }
.contact-details a:hover { color: #fff; }

/* Unified Footer Inner */
.footer-inner {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}
.footer-branding {
  margin-bottom: 0.5rem;
}
.footer-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  color: #fff;
}
.footer-desc { font-size: 0.8rem; color: rgba(255, 255, 255, 0.6); }

.footer-links {
  display: flex;
  gap: 1.5rem;
  margin: 0.5rem 0;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--t);
}
.footer-links a:hover { color: #fff; }

.footer-copy {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 1rem;
}

/* ── SCROLL REVEAL ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .cert-platform-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .hero-container { grid-template-columns: 1fr; gap: 3rem; padding-top: 2rem; }
  .two-col-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .social-sidebar { display: none; }
  .skill-group { grid-template-columns: 1fr; gap: 0.75rem; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  #hero { padding: calc(var(--nav-h) + 32px) 5vw 60px; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(250,250,248,0.98);
    backdrop-filter: blur(12px);
    padding: 1.25rem 5vw 1.5rem;
    border-bottom: 1px solid var(--border);
    gap: 0.25rem;
    z-index: 998;
  }
  .nav-links.open a { padding: 0.6rem 0.75rem; }
  .nav-toggle { display: flex; }
  .nav-location { display: none; }

  .cert-platform-grid { grid-template-columns: 1fr; }
  .hero-stats-row { gap: 1.5rem; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .two-col-grid { gap: 2rem; }
}