:root {
  color-scheme: dark;
  --bg: #020617;
  --bg-elevated: #0a1022;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(148, 163, 184, 0.18);
  --text: #f8fafc;
  --muted: #94a3b8;
  --primary: #1b1ece;
  --accent: #0c9cfc;
  --success: #10b981;
  --shadow: 0 24px 70px rgba(2, 6, 23, 0.6);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 10px;
  --radius-sm: 10px;
  --container: 1220px;
  --serif: "Inter", sans-serif;
  --sans: "Inter", sans-serif;
  --display: "Inter", sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f8fafc;
  --bg-elevated: #ffffff;
  --surface: rgba(15, 23, 42, 0.04);
  --surface-strong: rgba(15, 23, 42, 0.07);
  --border: rgba(15, 23, 42, 0.12);
  --text: #0f172a;
  --muted: #475569;
  --shadow: 0 18px 60px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  background:
    radial-gradient(circle at top left, rgba(77, 166, 255, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(20, 119, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #020617 0%, #040b1b 45%, #020617 100%);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

body[data-theme="light"] {
  background:
    radial-gradient(circle at top left, rgba(77, 166, 255, 0.1), transparent 25%),
    radial-gradient(circle at top right, rgba(20, 119, 255, 0.08), transparent 22%),
    linear-gradient(180deg, #f8fafc 0%, #edf2ff 45%, #f8fafc 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

::selection {
  background: rgba(255, 107, 53, 0.32);
  color: var(--text);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 1200;
  background: rgba(148, 163, 184, 0.08);
}

.scroll-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 0 16px rgba(77, 166, 255, 0.5);
}

.cursor-glow {
  position: fixed;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(77, 166, 255, 0.14), transparent 62%);
  mix-blend-mode: screen;
  z-index: 0;
  opacity: 0.8;
}

.loading-screen {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  gap: 1rem;
  background: var(--bg);
  z-index: 2000;
  transition: opacity 0.45s var(--ease-out), visibility 0.45s var(--ease-out);
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-orb {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-top-color: var(--accent);
  animation: spin 1s linear infinite;
}

.loading-screen p,
.noscript-banner {
  color: var(--muted);
  font-family: var(--display);
}

.noscript-banner {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: 999px;
  z-index: 1000;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  padding: 1rem 1.25rem;
}

.navbar {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: background 0.35s var(--ease-out), border-color 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), backdrop-filter 0.35s var(--ease-out);
}

.site-header.scrolled .navbar {
  background: rgba(2, 6, 23, 0.72);
  border-color: rgba(148, 163, 184, 0.16);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

[data-theme="light"] .site-header.scrolled .navbar {
  background: rgba(248, 250, 252, 0.78);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--display);
  font-weight: 700;
}

.brand-mark {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.brand-text {
  letter-spacing: -0.02em;
}

.theme-toggle,
.nav-toggle {
  border: 0;
  background: transparent;
  color: var(--text);
}

.theme-toggle {
  margin-left: auto;
  width: 62px;
  height: 34px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.16);
  border: 1px solid var(--border);
  flex: 0 0 auto;
}

.theme-toggle-track {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}

.theme-toggle-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f8fafc, #cbd5e1);
  transition: transform 0.35s var(--ease-out), background 0.35s var(--ease-out);
}

[data-theme="light"] .theme-toggle-thumb {
  transform: translateX(28px);
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  border-radius: 999px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}

.nav-toggle span + span {
  margin-top: 5px;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin-left: auto;
}

.nav-panel a {
  font-size: 0.92rem;
  color: var(--muted);
  transition: color 0.2s var(--ease-out), transform 0.2s var(--ease-out);
}

.nav-panel a:hover,
.nav-panel a.active {
  color: var(--text);
}

.nav-cta {
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white !important;
  box-shadow: 0 12px 24px rgba(20, 119, 255, 0.28);
}

.section-shell {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  padding: 5rem 1.25rem;
}

.hero {
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding-top: 3rem;
}

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

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(8px);
  animation: float 16s var(--ease-spring) infinite;
}

.orb-one {
  top: 8%;
  left: 6%;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(77, 166, 255, 0.2), transparent 65%);
}

.orb-two {
  top: 16%;
  right: 12%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(20, 119, 255, 0.18), transparent 65%);
  animation-delay: -4s;
}

.orb-three {
  bottom: 8%;
  left: 42%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12), transparent 65%);
  animation-delay: -8s;
}

.particles {
  position: absolute;
  inset: 0;
}

.particle {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.5);
  box-shadow: 0 0 18px rgba(77, 166, 255, 0.4);
  animation: drift linear infinite;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: center;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.65rem 0.95rem;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 1.2rem;
}

.eyebrow-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 18px rgba(16, 185, 129, 0.45);
}

.hero-copy h1,
.section-heading h2 {
  margin: 0;
  letter-spacing: -0.04em;
  font-family: var(--display);
  line-height: 0.98;
}

.hero-copy h1 {
  max-width: 11ch;
  font-size: clamp(3.4rem, 7vw, 6.6rem);
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.8rem);
}

.hero-lead {
  max-width: 760px;
  margin: 1.35rem 0 0;
  font-size: clamp(1.08rem, 1.6vw, 1.32rem);
  color: var(--text);
}

.hero-summary,
.section-heading p,
.about-card p,
.service-card p,
.blog-card p,
.contact-form .form-note,
.timeline-item p,
.testimonial-card span {
  color: var(--muted);
}

.hero-summary {
  max-width: 640px;
  font-size: 1rem;
  margin: 1rem 0 0;
}

.hero-actions,
.hero-metrics,
.about-tags,
.profile-badge-row,
.profile-chip-grid,
.project-meta,
.card-links,
.filter-group,
.form-actions,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 50px;
  padding: 0.85rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), border-color 0.25s var(--ease-out), background 0.25s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn:hover,
.btn:focus-visible,
.slider-btn:hover,
.slider-btn:focus-visible,
.nav-panel a:hover,
.card-links a:hover,
.certificate-card a:hover,
.back-to-top:hover,
.contact-links a:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 16px 28px rgba(20, 20, 20, 0.28);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  color: var(--accent);
  background: transparent;
  border-color: var(--accent);
  box-shadow: none;
}

.btn-secondary,
.btn-ghost,
.slider-btn,
.filter-btn,
.search-box input,
.contact-form input,
.contact-form textarea,
.contact-links a,
.service-card,
.about-card,
.blog-card,
.timeline-item,
.project-card,
.certificate-card,
.testimonial-shell,
.project-toolbar,
.glass-card {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.btn-secondary,
.btn-ghost {
  color: var(--text);
  background: rgba(148, 163, 184, 0.06);
}

.hero-metrics {
  margin-top: 1.5rem;
}

.hero-metrics article,
.stats-stack div {
  min-width: 150px;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.hero-metrics strong,
.stats-stack strong {
  display: block;
  font-family: var(--display);
  font-size: 1.8rem;
  line-height: 1;
}

.hero-metrics span,
.stats-stack span {
  color: var(--muted);
  font-size: 0.92rem;
}

.profile-card,
.contact-panel,
.testimonial-shell {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.profile-image-wrap {
  aspect-ratio: 1 / 1.06;
  overflow: hidden;
}

.profile-image-wrap img,
.card-media img,
.certificate-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-card-body {
  padding: 1.35rem;
}

.profile-card h2,
.about-card h3,
.service-card h3,
.blog-card h3,
.timeline-item h3,
.project-card h3,
.certificate-card h3,
.testimonial-card strong {
  margin: 0;
  font-family: var(--display);
  letter-spacing: -0.03em;
}

.profile-card h2 {
  font-size: 1.7rem;
}

.profile-chip-grid span,
.about-tags span,
.project-meta span,
.pill,
.icon-cloud span {
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.86rem;
}

.pill-accent {
  color: white;
  border-color: rgba(255, 107, 53, 0.36);
  background: linear-gradient(135deg, rgba(20, 119, 255, 0.32), rgba(255, 107, 53, 0.28));
}

.scroll-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.scroll-indicator span:first-child {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  position: relative;
}

.scroll-indicator span:first-child::after {
  content: "";
  position: absolute;
  inset: 10px 13px 11px;
  border-bottom: 2px solid var(--text);
  border-right: 2px solid var(--text);
  transform: rotate(45deg);
}

.section-alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2rem;
}

.section-kicker {
  margin: 0 0 0.8rem;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.about-grid,
.skills-layout,
.project-grid,
.service-grid,
.certificate-grid,
.blog-grid,
.contact-grid {
  display: grid;
  gap: 1.15rem;
}

.about-grid {
  grid-template-columns: repeat(12, 1fr);
}

.about-card:nth-child(1) {
  grid-column: span 5;
}

.about-card:nth-child(2) {
  grid-column: span 4;
}

.about-card:nth-child(3) {
  grid-column: span 3;
}

.glass-card,
.about-card,
.skill-panel,
.service-card,
.blog-card,
.timeline-item,
.project-card,
.certificate-card,
.contact-form,
.contact-panel,
.testimonial-shell,
.project-toolbar {
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
}

.about-card,
.skill-panel,
.service-card,
.blog-card,
.timeline-item,
.project-card,
.certificate-card,
.contact-form,
.contact-panel,
.testimonial-shell,
.project-toolbar {
  padding: 1.35rem;
}

.timeline.compact .timeline-item,
.experience-timeline {
  display: grid;
  gap: 0.85rem;
}

.timeline-item {
  display: flex;
  gap: 0.9rem;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 16px rgba(18, 18, 19, 0.45);
  flex-shrink: 0;
}

.stats-stack {
  display: grid;
  gap: 0.8rem;
}

.skills-layout,
.project-grid,
.service-grid,
.blog-grid {
  grid-template-columns: repeat(12, 1fr);
}

.skill-panel {
  grid-column: span 4;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.05rem;
}

.panel-header h3 {
  margin: 0;
  font-family: var(--display);
}

.panel-header span,
.timeline-meta,
.blog-card span,
.certificate-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

.skill-bar {
  margin-bottom: 0.95rem;
}

.skill-bar span {
  display: inline-block;
  margin-bottom: 0.55rem;
  color: var(--text);
  font-size: 0.95rem;
}

.skill-bar i {
  display: block;
  height: 10px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.12);
  overflow: hidden;
  position: relative;
}

.skill-bar i::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 0 16px rgba(77, 166, 255, 0.3);
  transition: width 1.2s var(--ease-out);
}

.skill-bar.is-visible i::after {
  width: calc(var(--skill-level, 0) * 1%);
}

.icon-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.15rem;
}

.project-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  margin-bottom: 1rem;
}

.filter-btn {
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.05);
  color: var(--muted);
}

.filter-btn.active {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.search-box {
  display: grid;
  gap: 0.45rem;
  min-width: min(100%, 340px);
}

.search-box span,
.contact-form label span {
  color: var(--muted);
  font-size: 0.9rem;
}

.search-box input,
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.95rem 1rem;
  border-radius: 16px;
  outline: none;
  color: var(--text);
}

.search-box input:focus,
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(255, 107, 53, 0.45);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

.project-grid {
  align-items: start;
}

.project-card {
  grid-column: span 6;
  display: grid;
  gap: 1rem;
  transition: transform 0.3s var(--ease-out), border-color 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}

.project-card.featured {
  border-color: rgba(77, 166, 255, 0.32);
  background: linear-gradient(180deg, rgba(20, 119, 255, 0.1), transparent 60%), var(--surface);
}

.project-card.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.98);
}

.card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 20px;
}

.card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(2, 6, 23, 0.45) 100%);
}

.card-media img {
  height: 100%;
  transition: transform 0.7s var(--ease-out);
}

.project-card:hover .card-media img,
.profile-card:hover .profile-image-wrap img,
.certificate-card:hover img {
  transform: scale(1.05);
}

.featured-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 1;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: rgba(2, 6, 23, 0.72);
  color: white;
  font-size: 0.8rem;
}

.card-body {
  display: grid;
  gap: 0.85rem;
}

.project-meta span {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
}

.project-card p,
.service-card p,
.blog-card p,
.about-card p,
.timeline-item p,
.testimonial-card p {
  margin: 0;
}

.card-links a,
.certificate-card a,
.contact-links a,
.footer-links a {
  color: var(--text);
  transition: transform 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

.card-links a,
.certificate-card a {
  color: var(--accent);
  font-weight: 600;
}

.service-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card,
.blog-card {
  min-height: 180px;
}

.service-card h3,
.blog-card h3 {
  margin-bottom: 0.6rem;
}

.timeline.experience-timeline {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.timeline-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.timeline-year {
  color: var(--accent);
  font-weight: 700;
}

.timeline-company {
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
  font-family: var(--display);
}

.timeline-item ul {
  margin: 0.9rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.certificate-grid {
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  align-items: stretch;
}

.certificate-section {
  max-width: 1400px;
}

.certificate-card {
  width: 100%;
  padding: 0;
  overflow: hidden;
}

.certificate-card img {
  aspect-ratio: 15/ 5;
  object-fit: cover;
}

.certificate-card div {
  padding: 1rem 1.1rem 1.15rem;
  display: grid;
  gap: 0.55rem;
}

.testimonial-shell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}

.testimonial-track {
  overflow: hidden;
  min-height: 220px;
  position: relative;
}

.testimonial-card {
  display: none;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  padding: 1rem 0;
  animation: fadeIn 0.5s var(--ease-out);
}

.testimonial-card.active {
  display: grid;
}

.testimonial-card p {
  font-size: 1.08rem;
}

.slider-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  color: var(--text);
  background: rgba(148, 163, 184, 0.08);
}

.blog-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-grid {
  grid-template-columns: repeat(12, 1fr);
  align-items: start;
}

.contact-form {
  grid-column: span 7;
  display: grid;
  gap: 1rem;
}

.contact-panel {
  grid-column: span 5;
  display: grid;
  gap: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
}

.contact-form textarea {
  resize: vertical;
  min-height: 160px;
}

.form-note {
  margin: 0;
  font-size: 0.92rem;
}

.contact-links {
  display: grid;
  gap: 0.85rem;
}

.contact-links a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.contact-links strong {
  font-size: 0.98rem;
}

.map-placeholder {
  min-height: 220px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
  border-radius: 20px;
  border: 1px dashed var(--border);
  background:
    linear-gradient(135deg, rgba(20, 119, 255, 0.12), rgba(77, 166, 255, 0.08)),
    rgba(255, 255, 255, 0.02);
}

.site-footer {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
}

.site-footer strong {
  display: block;
  color: var(--text);
  font-family: var(--display);
}

.back-to-top {
  min-width: 60px;
  height: 60px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  background: var(--surface);
}

.toast {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  padding: 0.95rem 1rem;
  border-radius: 16px;
  background: rgba(2, 6, 23, 0.88);
  color: white;
  border: 1px solid rgba(148, 163, 184, 0.16);
  box-shadow: var(--shadow);
  z-index: 1000;
}

.ripple::after {
  content: "";
  position: absolute;
  left: var(--ripple-x, 50%);
  top: var(--ripple-y, 50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  background: rgba(255, 255, 255, 0.35);
  opacity: 0;
}

.ripple.is-rippling::after {
  animation: ripple 0.6s ease-out;
}

.tilt-card {
  transform-style: preserve-3d;
}

.hidden-aux {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, 18px, 0); }
}

@keyframes drift {
  from { transform: translateY(0) scale(1); opacity: 0.55; }
  to { transform: translateY(-120vh) scale(1.1); opacity: 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ripple {
  to { transform: translate(-50%, -50%) scale(18); opacity: 0; }
}

@media (min-width: 1200px) {
  .hero-copy h1 {
    max-width: 12ch;
  }
}

@media (max-width: 1024px) {
  .hero-grid,
  .contact-grid,
  .about-grid,
  .skills-layout,
  .project-grid,
  .certificate-grid,
  .blog-grid,
  .service-grid,
  .timeline.experience-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-card:nth-child(n),
  .skill-panel,
  .project-card,
  .certificate-card,
  .contact-form,
  .contact-panel {
    grid-column: span 2;
  }

  .hero-grid {
    gap: 1.5rem;
  }
}

@media (max-width: 840px) {
  .navbar {
    border-radius: 26px;
  }

  .nav-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-panel {
    position: absolute;
    top: calc(100% + 0.7rem);
    right: 1.25rem;
    left: 1.25rem;
    display: grid;
    gap: 0.4rem;
    padding: 1rem;
    border-radius: 24px;
    border: 1px solid var(--border);
    background: rgba(2, 6, 23, 0.95);
    backdrop-filter: blur(18px);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out);
  }

  [data-theme="light"] .nav-panel {
    background: rgba(248, 250, 252, 0.96);
  }

  .nav-panel.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .hero-grid,
  .contact-grid,
  .about-grid,
  .skills-layout,
  .project-grid,
  .certificate-grid,
  .blog-grid,
  .service-grid,
  .timeline.experience-timeline,
  .form-row {
    grid-template-columns: 1fr;
  }

  .project-toolbar,
  .testimonial-shell,
  .site-footer,
  .panel-header,
  .timeline-meta,
  .contact-links a {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .theme-toggle {
    margin-left: 0;
  }

  .hero {
    padding-top: 4rem;
  }

  .certificate-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .site-footer {
    align-items: flex-start;
  }
}

@media (max-width: 540px) {
  .site-header {
    padding: 0.8rem 0.75rem;
  }

  .navbar,
  .section-shell,
  .site-footer {
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }

  .hero-copy h1 {
    font-size: clamp(2.9rem, 14vw, 4.2rem);
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions,
  .hero-metrics {
    gap: 0.65rem;
  }

  .btn {
    width: 100%;
  }

  .slider-btn {
    width: 42px;
    height: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}