/* ===== Design tokens — black & red theme ===== */
:root {
  --bg: #050505;
  --bg-elevated: #0f0f0f;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.07);
  --glass: rgba(8, 8, 8, 0.92);
  --border: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(220, 38, 38, 0.55);
  --text: #f5f5f5;
  --text-muted: #a3a3a3;
  --red: #dc2626;
  --red-light: #ef4444;
  --red-dark: #991b1b;
  --accent: #dc2626;
  --cyan: #ef4444;
  --gradient: linear-gradient(135deg, #7f1d1d 0%, #dc2626 50%, #ef4444 100%);
  --gradient-text: linear-gradient(120deg, #fecaca 0%, #ef4444 45%, #dc2626 100%);
  --glow-red: 0 0 60px rgba(220, 38, 38, 0.35);
  --glow-accent: 0 0 80px rgba(220, 38, 38, 0.2);
  --radius: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --nav-h: 72px;
  --font: 'Mukta', 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.35s var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
  min-width: 0;
}

body.menu-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
  left: 0;
  right: 0;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 15% 0%, rgba(220, 38, 38, 0.12), transparent 55%),
    radial-gradient(ellipse 50% 40% at 85% 100%, rgba(127, 29, 29, 0.15), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, video { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: min(1180px, 94%);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.page-wrap {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ===== Loader ===== */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: var(--bg);
  transition: opacity 0.5s var(--ease-out), visibility 0.5s;
}

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

.loader__spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--red);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

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

/* ===== Navigation ===== */
.nav-shell {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  padding: 0.85rem 0;
  background: rgba(5, 5, 5, 0.88);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background var(--transition), box-shadow var(--transition);
}

@supports (backdrop-filter: blur(18px)) {
  .nav-shell {
    backdrop-filter: blur(18px);
  }
}

.nav-shell.scrolled {
  background: rgba(5, 5, 5, 0.96);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

.nav {
  width: min(1180px, 92%);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nav__brand span {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__pill {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  padding: 0.35rem;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  backdrop-filter: blur(16px);
}

.nav__menu-mobile {
  display: none;
}

.nav__overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 280;
  background: rgba(0, 0, 0, 0.78);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  backdrop-filter: blur(4px);
}

.nav__overlay.open {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

.nav__link {
  padding: 0.55rem 1rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-pill);
  transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.nav__link.active {
  box-shadow: inset 0 0 0 1px rgba(220, 38, 38, 0.45);
  color: var(--red-light);
}

.nav__cta {
  margin-left: 0.25rem;
  padding: 0.55rem 1.15rem !important;
  background: var(--gradient) !important;
  color: #fff !important;
  font-weight: 600 !important;
}

.nav__toggle {
  display: none;
  position: relative;
  z-index: 310;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(15, 15, 15, 0.95);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav__toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.65rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn:hover { transform: translateY(-3px); }

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 32px rgba(220, 38, 38, 0.35);
}

.btn--primary:hover { box-shadow: 0 12px 40px rgba(220, 38, 38, 0.45); }

.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  border-color: var(--border-glow);
  background: rgba(220, 38, 38, 0.08);
}

.btn--sm { padding: 0.6rem 1.2rem; font-size: 0.85rem; }

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 3rem;
  padding: calc(var(--nav-h) + 3rem) 0 4rem;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  margin-bottom: 1.25rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--red-light);
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.3);
  border-radius: var(--radius-pill);
}

.hero__eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 12px var(--red);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.hero__title .gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== Logo constellation (custom PNG/JPG logos) ===== */
.logo-stage {
  position: relative;
  width: min(360px, 78vw);
  aspect-ratio: 1;
  margin-inline: auto;
}

.hero__visual {
  overflow: hidden;
  padding: 1rem 0;
}

.logo-stage__glow {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(220, 38, 38, 0.22), transparent 68%);
  filter: blur(28px);
  animation: glowPulse 4s ease-in-out infinite;
}

.logo-ring {
  position: absolute;
  inset: 0;
  animation: orbitSpin 22s linear infinite;
}

.logo-ring--reverse {
  inset: 14%;
  animation-duration: 16s;
  animation-direction: reverse;
}

.logo-chip {
  position: absolute;
  display: grid;
  place-items: center;
  padding: 0.65rem 0.85rem;
  min-width: 74px;
  min-height: 74px;
  background: rgba(15, 15, 15, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  backdrop-filter: blur(14px);
  box-shadow: 0 8px 32px rgba(220, 38, 38, 0.15);
  animation: counterSpinChip1 22s linear infinite;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s;
}

.logo-ring--reverse .logo-chip {
  animation-duration: 16s;
  animation-direction: reverse;
  min-width: 64px;
  min-height: 64px;
  padding: 0.5rem 0.65rem;
}

.logo-chip:hover {
  transform: scale(1.12);
  box-shadow: 0 0 40px rgba(220, 38, 38, 0.45);
  z-index: 3;
}

.logo-chip img {
  width: auto;
  height: 46px;
  max-width: 52px;
  object-fit: contain;
}

.logo-chip--tall img { height: 54px; max-width: 44px; }
.logo-chip--wide img { height: 40px; max-width: 58px; }

.logo-chip--1 { top: -36px; left: 50%; transform: translateX(-50%); }
.logo-chip--2 { top: 50%; right: -36px; transform: translateY(-50%); animation-name: counterSpinChip2; }
.logo-chip--3 { bottom: -36px; left: 50%; transform: translateX(-50%); animation-name: counterSpinChip3; }
.logo-chip--4 { top: 50%; left: -36px; transform: translateY(-50%); animation-name: counterSpinChip4; }

.logo-ring--reverse .logo-chip--5 { top: 8%; right: 8%; }
.logo-ring--reverse .logo-chip--6 { bottom: 8%; left: 8%; }

.logo-stage__center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}

.logo-stage__avatar {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 0 6px rgba(220, 38, 38, 0.15), var(--glow-red);
  animation: avatarFloat 5s ease-in-out infinite;
}

.logo-stage__pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(220, 38, 38, 0.35);
  pointer-events: none;
}

.logo-stage__pulse--1 {
  width: 160px;
  height: 160px;
  animation: pulseRing 3.5s ease-out infinite;
}

.logo-stage__pulse--2 {
  width: 160px;
  height: 160px;
  animation: pulseRing 3.5s ease-out infinite 1.15s;
}

.logo-stage__pulse--3 {
  width: 160px;
  height: 160px;
  animation: pulseRing 3.5s ease-out infinite 2.3s;
}

.hero-orbit__aurora {
  position: absolute;
  inset: -20%;
  border-radius: 50%;
  background:
    conic-gradient(from 0deg, transparent, rgba(220, 38, 38, 0.18), transparent, rgba(239, 68, 68, 0.12), transparent);
  filter: blur(40px);
  animation: auroraSpin 12s linear infinite;
  pointer-events: none;
}

.hero-orbit__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 4;
}

.hero-orbit__particles span {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red-light);
  box-shadow: 0 0 12px rgba(220, 38, 38, 0.8);
  animation: particleDrift 6s ease-in-out infinite;
}

.hero-orbit__particles span:nth-child(1) { top: 12%; left: 18%; animation-delay: 0s; }
.hero-orbit__particles span:nth-child(2) { top: 22%; right: 14%; animation-delay: 0.8s; width: 4px; height: 4px; }
.hero-orbit__particles span:nth-child(3) { bottom: 20%; left: 10%; animation-delay: 1.6s; }
.hero-orbit__particles span:nth-child(4) { bottom: 14%; right: 20%; animation-delay: 2.4s; width: 5px; height: 5px; }
.hero-orbit__particles span:nth-child(5) { top: 48%; left: 4%; animation-delay: 3.2s; width: 3px; height: 3px; }
.hero-orbit__particles span:nth-child(6) { top: 40%; right: 6%; animation-delay: 4s; }

.hero-orbit .logo-ring { animation-duration: 18s; }
.hero-orbit .logo-ring--reverse { animation-duration: 14s; }

.hero-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(220, 38, 38, 0.06) 50%, transparent 60%);
  transform: translateX(-120%);
  animation: heroShimmer 8s ease-in-out infinite;
  pointer-events: none;
}

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

@keyframes pulseRing {
  0% { transform: translate(-50%, -50%) scale(0.85); opacity: 0.7; }
  100% { transform: translate(-50%, -50%) scale(1.55); opacity: 0; }
}

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

@keyframes particleDrift {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.5; }
  50% { transform: translate(12px, -18px) scale(1.4); opacity: 1; }
}

@keyframes heroShimmer {
  0%, 100% { transform: translateX(-120%); }
  45%, 55% { transform: translateX(120%); }
}

.logo-stage__initial {
  width: 110px;
  height: 110px;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: var(--glow-red);
}

/* Legacy aliases */
.orbit-stage,
.logo-stage { position: relative; width: min(440px, 92vw); aspect-ratio: 1; margin-inline: auto; }

.orbit-glow,
.logo-stage__glow {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(220, 38, 38, 0.28), transparent 68%);
  filter: blur(28px);
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.08); opacity: 1; }
}

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

@keyframes counterSpinChip1 {
  from { transform: translateX(-50%) rotate(0deg); }
  to { transform: translateX(-50%) rotate(-360deg); }
}
@keyframes counterSpinChip2 {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(-360deg); }
}
@keyframes counterSpinChip3 {
  from { transform: translateX(-50%) rotate(0deg); }
  to { transform: translateX(-50%) rotate(-360deg); }
}
@keyframes counterSpinChip4 {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(-360deg); }
}

/* ===== Hero glass panel ===== */
.hero-glass-wrap {
  padding: calc(var(--nav-h) + 2rem) 0 3rem;
}

.hero-glass {
  padding: clamp(1.75rem, 4vw, 3rem);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  overflow: hidden;
  position: relative;
}

.hero-glass__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-glass__tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red-light);
  margin-bottom: 0.85rem;
}

.contact-single {
  max-width: 520px;
  margin-inline: auto;
  text-align: center;
  padding: 2.5rem;
}

.app-logos-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  height: 100%;
  min-height: 180px;
  background: var(--bg-elevated);
  padding: 2rem;
}

.app-logos-preview img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.hero__title,
.section__title,
.page-hero__title {
  font-weight: 700;
}

/* ===== App screenshots from video ===== */
.app-screenshots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.app-screenshot {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 9/16;
  background: var(--bg-elevated);
}

.app-screenshot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app-video-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

/* ===== Certificate cards ===== */
.cert-image-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.cert-image-card {
  overflow: hidden;
  padding: 0;
}

.cert-image-card img {
  width: 100%;
  height: auto;
  display: block;
}

.cert-image-card__caption {
  padding: 1.25rem 1.5rem;
}

.profile-card__avatar--photo {
  background: none;
  overflow: hidden;
  padding: 0;
}

.profile-card__avatar--photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-photo-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-photo-wrap img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
}

.about-photo-badge {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  padding: 1rem 1.25rem;
  background: rgba(3, 0, 20, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

.about-photo-badge strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--red-light);
}

.about-photo-badge span {
  font-size: 0.85rem;
  color: var(--text-muted);
}


/* ===== Sections ===== */
.section {
  padding: 5.5rem 0;
}

.section--tight { padding: 4rem 0; }

.section__header {
  margin-bottom: 3rem;
}

.section__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red-light);
  margin-bottom: 0.75rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.section__desc {
  margin-top: 0.85rem;
  max-width: 560px;
  color: var(--text-muted);
}

/* ===== Glass cards ===== */
.glass-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--glow-red);
}

/* ===== Project cards ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.project-card {
  overflow: hidden;
  position: relative;
}

.project-card__media {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-elevated);
}

.project-card__media img,
.project-card__media video,
.project-card__media iframe {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.6s var(--ease-out);
}

.project-card__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card:hover .project-card__media img,
.project-card:hover .project-card__media video {
  transform: scale(1.05);
}

.project-card__badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  z-index: 2;
}

.project-card__badge--live {
  background: rgba(34, 211, 238, 0.15);
  color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, 0.35);
}

.project-card__badge--progress {
  background: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.35);
}

.project-card__media--wide {
  aspect-ratio: auto;
  min-height: 280px;
}

.project-card__media--wide img {
  object-fit: contain;
  object-position: top center;
  background: var(--bg-elevated);
}

.project-card__media--icon {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: auto;
  min-height: 240px;
  background: linear-gradient(145deg, rgba(220, 38, 38, 0.08), var(--bg-elevated));
}

.project-card__app-icon {
  width: auto !important;
  height: 120px !important;
  max-width: 70%;
  object-fit: contain !important;
  border-radius: 24px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
}

.project-card:hover .project-card__app-icon {
  transform: scale(1.06);
}

/* ===== Scroll to top ===== */
.scroll-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 250;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(15, 15, 15, 0.95);
  color: var(--text);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition), border-color var(--transition);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: rgba(220, 38, 38, 0.15);
  border-color: var(--border-glow);
  color: var(--red-light);
}

body.menu-open .scroll-top {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.project-card__body { padding: 1.5rem; }

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.tag {
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.project-card__desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--red-light);
  transition: gap var(--transition);
}

.project-card__link:hover { gap: 0.65rem; }

/* ===== Marquee ===== */
.marquee {
  overflow: hidden;
  padding: 1.5rem 0;
  border-block: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 28s linear infinite;
}

.marquee__item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 2rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.marquee__item img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  opacity: 0.9;
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ===== Page hero (inner pages) ===== */
.page-hero {
  padding: calc(var(--nav-h) + 4rem) 0 3rem;
  text-align: center;
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.page-hero__desc {
  color: var(--text-muted);
  max-width: 560px;
  margin-inline: auto;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: start;
}

.about-card { padding: 2rem; }

.about-card p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.about-card p:last-child { margin-bottom: 0; }

.about-card strong { color: var(--text); }

.profile-card {
  padding: 2rem;
  text-align: center;
}

.profile-card__avatar {
  width: 120px;
  height: 120px;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: var(--gradient);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  box-shadow: var(--glow-red);
}

.profile-card__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.profile-card__role { color: var(--text-muted); font-size: 0.95rem; }

/* ===== Timeline ===== */
.timeline { display: flex; flex-direction: column; gap: 1.25rem; }

.timeline__item {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 1.25rem;
}

.timeline__dot {
  width: 20px;
  height: 20px;
  margin-top: 1.25rem;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: 0 0 16px rgba(220, 38, 38, 0.5);
}

.timeline__content { padding: 1.5rem 1.75rem; }

.timeline__period {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red-light);
  margin-bottom: 0.35rem;
}

.timeline__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.timeline__place { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 0.35rem; }

.timeline__score {
  font-size: 0.9rem;
  color: var(--cyan);
  font-weight: 600;
}

/* ===== Cert cards ===== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.cert-card { padding: 2rem; }

.cert-card__icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  border-radius: 14px;
  background: rgba(220, 38, 38, 0.12);
  margin-bottom: 1rem;
}

.cert-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.cert-card__org {
  color: var(--red-light);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.cert-card__desc { color: var(--text-muted); font-size: 0.95rem; }

/* ===== Skills page ===== */
.skills-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
}

.skills-orbit-mini {
  position: relative;
  width: 320px;
  height: 320px;
  margin-inline: auto;
}

.skills-orbit-mini .logo-ring { inset: 0; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.skill-card {
  padding: 1.75rem;
  text-align: center;
}

.skill-card__logo {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  object-fit: contain;
  transition: transform 0.4s var(--ease-out);
}

.skill-card:hover .skill-card__logo {
  transform: scale(1.15) rotate(-6deg);
}

.skill-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.skill-card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ===== Project detail ===== */
.project-detail {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
}

.project-detail--reverse { direction: rtl; }
.project-detail--reverse > * { direction: ltr; }

.project-detail__visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--glow-accent);
}

.project-detail__visual--icon {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  padding: 2.5rem;
  background: linear-gradient(145deg, rgba(220, 38, 38, 0.08), var(--bg-elevated));
}

.project-detail__visual--icon .project-detail__app-icon {
  width: auto;
  height: 160px;
  max-width: 80%;
  min-height: auto;
  max-height: none;
  object-fit: contain;
  border-radius: 28px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
  background: transparent;
}

.project-detail__visual img,
.project-detail__visual video {
  width: 100%;
  aspect-ratio: auto;
  min-height: 320px;
  max-height: 520px;
  object-fit: contain;
  object-position: top center;
  background: var(--bg-elevated);
}

.phone-mockup {
  position: relative;
  width: min(280px, 80%);
  margin-inline: auto;
  padding: 12px;
  border-radius: 36px;
  background: linear-gradient(145deg, #1a1a2e, #0d0d18);
  border: 2px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--glow-red), inset 0 0 30px rgba(0, 0, 0, 0.5);
}

.phone-mockup__notch {
  width: 90px;
  height: 22px;
  margin: 0 auto 8px;
  background: #000;
  border-radius: 0 0 14px 14px;
}

.phone-mockup__screen {
  border-radius: 24px;
  overflow: hidden;
  background: #0a0520;
  aspect-ratio: 9/19;
  position: relative;
}

.phone-mockup__screen video,
.phone-mockup__screen .app-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app-preview {
  display: flex;
  flex-direction: column;
  padding: 1rem;
  gap: 0.75rem;
  animation: appFade 8s ease-in-out infinite;
}

.app-preview__bar {
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--red-dark), var(--red-light));
  width: 60%;
}

.app-preview__block {
  flex: 1;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.app-preview__block::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(220, 38, 38, 0.15) 50%, transparent 70%);
  animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
  to { transform: translateX(100%); }
}

@keyframes appFade {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.92; }
}

.project-detail__label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red-light);
  margin-bottom: 0.5rem;
}

.project-detail__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.project-detail__desc {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.project-detail__list {
  margin-bottom: 1.5rem;
}

.project-detail__list li {
  position: relative;
  padding-left: 1.35rem;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
  font-size: 0.95rem;
}

.project-detail__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--red-light);
}

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card { padding: 2rem; }

.service-card__num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  opacity: 0.15;
  margin-bottom: 0.5rem;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.service-card__desc { color: var(--text-muted); font-size: 0.95rem; }

.pricing-banner {
  margin-top: 3rem;
  padding: 2.5rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.12), rgba(220, 38, 38, 0.12));
  border-color: rgba(220, 38, 38, 0.3);
}

.pricing-banner__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.pricing-banner__desc {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 1.5rem;
}

/* ===== Contact page ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: stretch;
}

.contact-panel__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  margin-bottom: 1.25rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--red-light);
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.3);
  border-radius: var(--radius-pill);
}

.contact-panel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 12px var(--red);
  animation: blink 2s ease-in-out infinite;
}

.contact-panel__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.15;
}

.contact-panel__desc {
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 440px;
}

.contact-panel__cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  transition: transform var(--transition), border-color var(--transition);
}

a.contact-card:hover {
  transform: translateX(6px);
  border-color: var(--border-glow);
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(220, 38, 38, 0.12);
  font-size: 1.25rem;
}

.contact-card__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.15rem;
}

.contact-card__value {
  font-weight: 600;
  color: var(--text);
}

a.contact-card .contact-card__value {
  color: var(--red-light);
}

.contact-cta {
  position: relative;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.contact-cta__glow {
  position: absolute;
  top: -40%;
  right: -20%;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(220, 38, 38, 0.25), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.contact-cta__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.contact-cta__desc {
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.contact-cta__btn {
  width: 100%;
  margin-bottom: 1rem;
  word-break: break-all;
}

.contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.contact-cta__actions .btn {
  flex: 1;
  min-width: 140px;
}

/* ===== Screenshot gallery ===== */
.ss-gallery {
  margin-top: 2.5rem;
}

.ss-gallery__label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red-light);
  margin-bottom: 1.25rem;
}

.ss-gallery__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.ss-gallery__grid--app {
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

.ss-gallery__item {
  overflow: hidden;
  padding: 0;
  margin: 0;
}

.ss-gallery__item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s var(--ease-out);
}

.ss-gallery__grid:not(.ss-gallery__grid--app) .ss-gallery__item img {
  min-height: 220px;
  object-fit: cover;
  object-position: top center;
}

.ss-gallery__item:hover img {
  transform: scale(1.04);
}

.ss-gallery__item--phone img {
  aspect-ratio: 9/19;
  object-fit: cover;
  object-position: top;
}

.phone-mockup__screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

/* ===== Contact (legacy) ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.contact-info { padding: 2rem; }

.contact-info__item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(220, 38, 38, 0.12);
  font-size: 1.25rem;
}

.contact-info__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.15rem;
}

.contact-info__value {
  font-weight: 600;
  color: var(--red-light);
}

.contact-form { padding: 2rem; }

.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--border-glow);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.form-group textarea { min-height: 140px; resize: vertical; }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 2rem;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer__brand {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--text);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__links a:hover { color: var(--red-light); }

/* ===== Reveal animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero,
  .hero-glass__grid,
  .about-grid,
  .project-detail,
  .project-detail--reverse,
  .skills-showcase,
  .contact-grid,
  .contact-layout,
  .projects-grid,
  .cert-grid,
  .cert-image-grid,
  .app-video-wrap,
  .app-screenshots,
  .services-grid {
    grid-template-columns: 1fr;
  }

  .hero-glass__grid { text-align: center; }
  .hero-glass__grid .hero__actions,
  .hero-glass__grid .hero__stats { justify-content: center; }

  .hero { text-align: center; padding-top: calc(var(--nav-h) + 2rem); }
  .hero__subtitle, .section__desc { margin-inline: auto; }
  .hero__actions, .hero__stats { justify-content: center; }
  .hero__visual { order: -1; }

  .project-detail--reverse { direction: ltr; }

  .nav__pill { display: none; }
  .nav__toggle { display: flex; }

  .nav {
    position: relative;
    z-index: 310;
  }

  .nav__brand {
    position: relative;
    z-index: 310;
  }

  .nav__menu-mobile {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    width: 100%;
    max-width: 100%;
    z-index: 400;
    padding: 0;
    background: rgba(5, 5, 5, 0.98);
    border: none;
    transform: none;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition), visibility var(--transition);
    overflow: hidden;
    box-shadow: none;
  }

  .nav__menu-mobile.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav__menu-header {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    min-height: var(--nav-h);
    padding-top: max(1rem, env(safe-area-inset-top));
  }

  .nav__menu-close {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    font-size: 1.75rem;
    line-height: 1;
    color: var(--text);
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.06);
    transition: color var(--transition), background var(--transition);
  }

  .nav__menu-close:hover {
    color: var(--red-light);
    background: rgba(220, 38, 38, 0.12);
  }

  .nav__menu-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 2rem 1.5rem;
    overflow-y: auto;
    flex: 1;
    -webkit-overflow-scrolling: touch;
    justify-content: center;
  }

  .nav__menu-mobile .nav__link {
    padding: 1.1rem 1.25rem;
    font-size: 1.15rem;
    font-weight: 600;
    border-radius: 14px;
    color: var(--text);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
  }

  .nav__menu-mobile .nav__link:hover,
  .nav__menu-mobile .nav__link.active {
    color: var(--red-light);
    background: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.35);
  }

  .nav__menu-mobile .nav__cta {
    margin-left: 0;
    margin-top: 0.75rem;
    text-align: center;
    border: none;
  }

  .logo-stage {
    width: min(280px, 72vw);
  }

  .logo-chip {
    min-width: 58px;
    min-height: 58px;
    padding: 0.45rem 0.55rem;
  }

  .logo-chip--1 { top: -24px; }
  .logo-chip--2 { right: -24px; }
  .logo-chip--3 { bottom: -24px; }
  .logo-chip--4 { left: -24px; }

  .logo-stage__avatar {
    width: 100px;
    height: 100px;
  }

  .hero-glass {
    padding: 1.25rem;
  }
}

@media (max-width: 560px) {
  .skills-grid { grid-template-columns: 1fr; }
  .hero__stats { gap: 1.25rem; }
  .app-screenshots { grid-template-columns: 1fr; }
  .ss-gallery__grid { grid-template-columns: 1fr; }
  .ss-gallery__grid--app { grid-template-columns: repeat(2, 1fr); }
  .contact-cta__actions .btn { flex: 1 1 100%; }
  .project-card__media--wide { min-height: 220px; }
  .scroll-top { right: 1rem; bottom: 1rem; width: 44px; height: 44px; }
}

@media (min-width: 961px) {
  .ss-gallery__grid:not(.ss-gallery__grid--app) {
    grid-template-columns: repeat(2, 1fr);
  }

  .ss-gallery__grid:not(.ss-gallery__grid--app) .ss-gallery__item img {
    min-height: 280px;
  }
}