:root {
  --bg: #07111f;
  --bg-soft: #0b1728;
  --surface: rgba(13, 28, 48, 0.72);
  --surface-solid: #0e1b2d;
  --surface-hover: rgba(19, 40, 67, 0.88);
  --text: #edf7ff;
  --muted: #91a6bb;
  --primary: #32d9ff;
  --primary-2: #4d7cff;
  --border: rgba(140, 190, 225, 0.16);
  --border-strong: rgba(50, 217, 255, 0.34);
  --success: #4ade80;
  --danger: #ff7187;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 12px 35px rgba(0, 0, 0, 0.2);
  --radius: 24px;
  --radius-sm: 14px;
  --container: 1180px;
  --header-height: 78px;
  --transition: 220ms ease;
}

body.light-mode {
  --bg: #f3f8fc;
  --bg-soft: #eaf3fa;
  --surface: rgba(255, 255, 255, 0.76);
  --surface-solid: #ffffff;
  --surface-hover: #ffffff;
  --text: #102034;
  --muted: #5f7185;
  --border: rgba(20, 57, 86, 0.12);
  --border-strong: rgba(15, 148, 180, 0.32);
  --shadow: 0 24px 70px rgba(26, 62, 91, 0.12);
  --shadow-soft: 0 12px 35px rgba(26, 62, 91, 0.08);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  min-height: 100vh;
  font-family: "Inter", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(50, 217, 255, 0.08), transparent 26rem),
    radial-gradient(circle at 85% 25%, rgba(77, 124, 255, 0.09), transparent 28rem),
    var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background-color var(--transition), color var(--transition);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

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

ul {
  list-style: none;
}

::selection {
  color: #02131d;
  background: var(--primary);
}

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 2000;
  padding: 10px 16px;
  border-radius: 10px;
  color: #00131b;
  background: var(--primary);
  font-weight: 800;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding: 120px 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0.025));
  border-block: 1px solid var(--border);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(7, 17, 31, 0.58);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

body.light-mode .site-header {
  background: rgba(243, 248, 252, 0.78);
}

.site-header.scrolled {
  border-color: var(--border);
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.navbar {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  flex: 0 0 auto;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.logo span {
  color: var(--primary);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 5px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 12px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  border-radius: 10px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

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

.nav-link.active::after,
.nav-link:hover::after {
  transform: scaleX(1);
}

.theme-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  background: var(--surface);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.theme-toggle:hover {
  transform: rotate(12deg);
  border-color: var(--border-strong);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

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

.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 90px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 70px;
  align-items: center;
}

.hero-copy {
  max-width: 700px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(74, 222, 128, 0.08), 0 0 20px rgba(74, 222, 128, 0.7);
}

.hero-greeting {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 2px;
}

.hero h1,
.section-heading h2 {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.055em;
  line-height: 1.02;
}

.hero h1 {
  max-width: 900px;
  font-size: clamp(3.2rem, 7vw, 6.6rem);
}

.hero-role {
  min-height: 46px;
  margin-top: 18px;
  color: var(--primary);
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-weight: 700;
}

.typing-cursor {
  margin-left: 5px;
  animation: blink 0.9s infinite;
}

.hero-description {
  max-width: 650px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.02rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 30px;
}

.btn {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 21px;
  border-radius: 13px;
  border: 1px solid transparent;
  font-weight: 800;
  transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

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

.btn-primary {
  color: #02141c;
  background: linear-gradient(135deg, var(--primary), #67e8ff);
  box-shadow: 0 12px 32px rgba(50, 217, 255, 0.17);
}

.btn-primary:hover {
  box-shadow: 0 16px 40px rgba(50, 217, 255, 0.25);
}

.btn-secondary {
  color: var(--text);
  border-color: var(--border);
  background: var(--surface);
}

.btn-secondary:hover {
  border-color: var(--border-strong);
}

.social-row {
  display: flex;
  gap: 9px;
  margin-top: 25px;
}

.social-link {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--muted);
  background: var(--surface);
  font-size: 0.78rem;
  font-weight: 800;
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
}

.social-link:hover {
  color: var(--primary);
  border-color: var(--border-strong);
  transform: translateY(-3px);
}

.hero-visual {
  position: relative;
  min-height: 560px;
  display: grid;
  place-items: center;
}

.hero-glow {
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(50, 217, 255, 0.24), rgba(77, 124, 255, 0.09) 45%, transparent 70%);
  filter: blur(4px);
}

.profile-frame {
  position: relative;
  z-index: 2;
  width: min(420px, 72vw);
  aspect-ratio: 1;
  padding: 10px;
  border-radius: 50%;
  background: linear-gradient(145deg, rgba(50, 217, 255, 0.95), rgba(77, 124, 255, 0.2) 45%, rgba(255,255,255,0.08));
  box-shadow: 0 0 70px rgba(50, 217, 255, 0.18), var(--shadow);
}

.profile-frame::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 50%;
  background: var(--bg);
}

.profile-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
  border: 3px solid rgba(255,255,255,0.15);
}

.profile-orbit {
  position: absolute;
  border: 1px solid rgba(50, 217, 255, 0.16);
  border-radius: 50%;
  transform: rotate(-18deg);
}

.orbit-one {
  width: 510px;
  height: 230px;
}

.orbit-two {
  width: 570px;
  height: 300px;
  transform: rotate(24deg);
}

.floating-card {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: rgba(9, 23, 40, 0.78);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

body.light-mode .floating-card {
  background: rgba(255,255,255,0.84);
}

.card-location {
  left: 1%;
  bottom: 17%;
}

.card-stack {
  right: 0;
  top: 15%;
}

.float-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: var(--primary);
  background: rgba(50,217,255,0.09);
  font-weight: 800;
}

.floating-card strong,
.floating-card small {
  display: block;
}

.floating-card strong {
  font-size: 0.83rem;
}

.floating-card small {
  color: var(--muted);
  font-size: 0.68rem;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 25px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.scroll-line {
  width: 1px;
  height: 34px;
  background: linear-gradient(var(--primary), transparent);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 55px;
}

.section-heading h2 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
}

.section-heading h2 span {
  color: var(--primary);
}

.section-heading > p:last-child {
  max-width: 620px;
  margin-top: 17px;
  color: var(--muted);
}

.glass-card {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 25px;
}

.about-copy,
.education-card {
  padding: 32px;
  border-radius: var(--radius);
}

.about-copy p {
  color: var(--muted);
}

.about-copy p + p {
  margin-top: 18px;
}

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

.about-tags,
.skill-chips,
.experience-points,
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.about-tags {
  margin-top: 26px;
}

.about-tags span,
.skill-chips span,
.experience-points span,
.project-tech span {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,0.025);
  font-size: 0.78rem;
  font-weight: 600;
}

.card-label {
  margin-bottom: 28px;
  color: var(--primary);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 14px;
  padding-bottom: 28px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 16px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-dot {
  position: relative;
  z-index: 1;
  width: 11px;
  height: 11px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 18px rgba(50,217,255,0.5);
}

.timeline-date {
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.timeline-item h3 {
  margin-top: 3px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1rem;
}

.timeline-item p:not(.timeline-date) {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.88rem;
}

.muted {
  display: inline-block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.75rem;
}

.skills-layout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

.skill-category {
  padding: 28px;
  border-radius: var(--radius);
}

.category-heading {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 25px;
}

.category-number {
  color: var(--primary);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
}

.category-heading h3 {
  font-family: "Space Grotesk", sans-serif;
}

.skill-list {
  display: grid;
  gap: 18px;
}

.skill-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  align-items: center;
  gap: 15px;
}

.skill-row > div:first-child {
  min-width: 0;
}

.skill-row span,
.skill-row small {
  display: block;
}

.skill-row span {
  font-weight: 700;
}

.skill-row small {
  color: var(--muted);
  font-size: 0.68rem;
}

.skill-bar {
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(140,190,225,0.11);
}

.skill-bar span {
  width: var(--level);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 900ms cubic-bezier(.2,.8,.2,1);
}

.reveal.is-visible .skill-bar span {
  transform: scaleX(1);
}

.skill-chips {
  align-content: flex-start;
}

.skill-chips span {
  color: var(--text);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.service-card {
  position: relative;
  min-height: 360px;
  padding: 30px;
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.service-card::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -90px;
  bottom: -90px;
  border-radius: 50%;
  background: rgba(50,217,255,0.08);
}

.service-card:hover {
  transform: translateY(-7px);
  border-color: var(--border-strong);
  background: var(--surface-hover);
}

.service-index {
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 800;
}

.service-icon {
  margin: 40px 0 22px;
  color: var(--primary);
  font-family: "Space Grotesk", sans-serif;
  font-size: 2.3rem;
  font-weight: 700;
}

.service-card h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.3rem;
}

.service-card p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.service-card ul {
  margin-top: 22px;
  display: grid;
  gap: 8px;
}

.service-card li {
  color: var(--muted);
  font-size: 0.78rem;
}

.service-card li::before {
  content: "→";
  margin-right: 8px;
  color: var(--primary);
}

.experience-card {
  padding: 34px;
  border-radius: var(--radius);
}

.experience-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 25px;
}

.experience-top h3 {
  margin-top: 5px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
}

.company-name {
  margin-top: 4px;
  color: var(--muted);
}

.ongoing-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid rgba(74,222,128,0.2);
  border-radius: 999px;
  color: var(--success);
  background: rgba(74,222,128,0.06);
  font-size: 0.75rem;
  font-weight: 800;
  white-space: nowrap;
}

.ongoing-badge span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}

.experience-body {
  margin-top: 28px;
  padding-top: 25px;
  border-top: 1px solid var(--border);
}

.experience-body > p {
  max-width: 900px;
  color: var(--muted);
}

.experience-points {
  margin-top: 20px;
}

.experience-points span {
  color: var(--text);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

.project-card {
  overflow: hidden;
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition);
}

.project-card:hover {
  transform: translateY(-7px);
  border-color: var(--border-strong);
}

.project-visual {
  position: relative;
  min-height: 270px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 25px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.project-visual::before,
.project-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
}

.project-visual::before {
  width: 260px;
  height: 260px;
  top: -100px;
  right: -60px;
  background: rgba(50,217,255,0.16);
}

.project-visual::after {
  width: 190px;
  height: 190px;
  bottom: -90px;
  left: -50px;
  background: rgba(77,124,255,0.16);
}

.ecommerce-visual {
  background:
    linear-gradient(135deg, rgba(50,217,255,0.08), rgba(77,124,255,0.04)),
    repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(255,255,255,0.02) 21px, rgba(255,255,255,0.02) 22px);
}

.portfolio-visual {
  background:
    linear-gradient(135deg, rgba(77,124,255,0.1), rgba(50,217,255,0.03)),
    repeating-linear-gradient(-45deg, transparent, transparent 20px, rgba(255,255,255,0.02) 21px, rgba(255,255,255,0.02) 22px);
}

.visual-code {
  position: relative;
  z-index: 1;
  color: var(--text);
  font-family: "Space Grotesk", monospace;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 700;
}

.visual-badge {
  position: relative;
  z-index: 1;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--primary);
  background: rgba(7,17,31,0.45);
  font-size: 0.7rem;
  font-weight: 800;
}

.project-content {
  padding: 30px;
}

.project-number,
.certificate-meta {
  color: var(--primary);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.project-content h3 {
  margin-top: 9px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.5rem;
}

.project-content p {
  margin-top: 11px;
  color: var(--muted);
  font-size: 0.9rem;
}

.project-tech {
  margin-top: 19px;
}

.project-links {
  margin-top: 22px;
}

.text-link {
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 800;
}

.project-note {
  display: flex;
  gap: 10px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 0.8rem;
}

.project-note > span {
  color: var(--primary);
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

.certificate-card {
  position: relative;
  min-height: 330px;
  padding: 30px;
  border-radius: var(--radius);
  overflow: hidden;
}

.certificate-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  color: var(--primary);
  background: rgba(50,217,255,0.07);
}

.certificate-card h3 {
  max-width: 560px;
  margin-top: 9px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.35rem;
  line-height: 1.25;
}

.certificate-issuer {
  margin-top: 12px;
  color: var(--text);
  font-weight: 700;
}

.certificate-date {
  color: var(--muted);
  font-size: 0.82rem;
}

.certificate-id {
  margin-top: 16px;
  padding: 10px 12px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-family: monospace;
  font-size: 0.7rem;
  overflow-wrap: anywhere;
}

.certificate-button {
  margin-top: 18px;
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: 11px;
  color: var(--muted);
  background: transparent;
  font-weight: 700;
}

.certificate-button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.verification-note {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.68rem;
}

.resume-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;
  padding: 38px;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 85% 50%, rgba(50,217,255,0.11), transparent 28rem),
    var(--surface);
}

.resume-panel h2 {
  margin-top: 5px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.resume-panel h2 span {
  color: var(--primary);
}

.resume-panel p:last-child {
  max-width: 680px;
  margin-top: 9px;
  color: var(--muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 25px;
}

.contact-info,
.form-card {
  padding: 30px;
  border-radius: var(--radius);
}

.contact-label {
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-top: 20px;
  color: var(--text);
}

.contact-icon {
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--primary);
}

.contact-item small,
.contact-item strong {
  display: block;
}

.contact-item small {
  color: var(--muted);
  font-size: 0.7rem;
}

.contact-item strong {
  margin-top: 2px;
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.contact-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}

.contact-socials a {
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 800;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.form-group {
  margin-bottom: 17px;
}

.form-group label {
  display: block;
  margin-bottom: 7px;
  font-size: 0.78rem;
  font-weight: 800;
}

.form-group label span {
  color: var(--primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  outline: none;
  color: var(--text);
  background: rgba(255,255,255,0.025);
  padding: 13px 14px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.form-group textarea {
  min-height: 145px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(50,217,255,0.08);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--danger);
}

.error-message {
  display: block;
  min-height: 18px;
  margin-top: 3px;
  color: var(--danger);
  font-size: 0.68rem;
}

.form-submit {
  width: 100%;
}

.form-success {
  min-height: 24px;
  margin-top: 13px;
  color: var(--success);
  font-size: 0.8rem;
  font-weight: 700;
}

.site-footer {
  padding: 35px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.72rem;
}

.back-top {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--primary);
  background: var(--surface);
  font-weight: 800;
  transition: transform var(--transition), border-color var(--transition);
}

.back-top:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

.reveal-delay {
  transition-delay: 100ms;
}

@keyframes blink {
  50% { opacity: 0; }
}

@keyframes float {
  50% { transform: translateY(-8px); }
}

.card-location {
  animation: float 5s ease-in-out infinite;
}

.card-stack {
  animation: float 5s ease-in-out 1.2s infinite;
}

@media (max-width: 1080px) {
  .nav-menu {
    gap: 0;
  }

  .nav-link {
    padding-inline: 8px;
    font-size: 0.78rem;
  }

  .hero-grid {
    gap: 35px;
  }

  .card-location {
    left: -2%;
  }
}

@media (max-width: 920px) {
  :root {
    --header-height: 70px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-wrapper {
    position: absolute;
    top: calc(100% + 8px);
    left: 20px;
    right: 20px;
    display: none;
    align-items: stretch;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: rgba(7,17,31,0.94);
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
  }

  body.light-mode .nav-wrapper {
    background: rgba(255,255,255,0.96);
  }

  .nav-wrapper.open {
    display: flex;
    flex-direction: column;
  }

  .nav-menu {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-link {
    justify-content: center;
    min-height: 44px;
  }

  .nav-link::after {
    display: none;
  }

  .theme-toggle {
    align-self: center;
    margin-top: 8px;
  }

  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    text-align: center;
    margin-inline: auto;
  }

  .hero-actions,
  .social-row {
    justify-content: center;
  }

  .hero-visual {
    min-height: 480px;
  }

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

  .service-card {
    min-height: auto;
  }

  .about-copy {
    order: 2;
  }

  .education-card {
    order: 1;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 90px 0;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .hero {
    padding-top: calc(var(--header-height) + 45px);
  }

  .hero h1 {
    font-size: clamp(2.8rem, 15vw, 4.5rem);
  }

  .hero-description {
    font-size: 0.92rem;
  }

  .hero-visual {
    min-height: 390px;
  }

  .profile-frame {
    width: min(330px, 76vw);
  }

  .profile-orbit {
    display: none;
  }

  .floating-card {
    padding: 10px 11px;
  }

  .card-location {
    left: 0;
    bottom: 7%;
  }

  .card-stack {
    right: 0;
    top: 7%;
  }

  .skills-layout,
  .projects-grid,
  .certificates-grid {
    grid-template-columns: 1fr;
  }

  .skill-row {
    grid-template-columns: 105px 1fr;
  }

  .experience-top,
  .resume-panel,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .scroll-cue {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-actions .btn {
    width: 100%;
  }

  .about-copy,
  .education-card,
  .skill-category,
  .service-card,
  .experience-card,
  .project-content,
  .certificate-card,
  .contact-info,
  .form-card,
  .resume-panel {
    padding: 23px;
  }

  .floating-card {
    transform: scale(0.88);
  }

  .card-location {
    left: -7%;
  }

  .card-stack {
    right: -7%;
  }

  .contact-item strong {
    font-size: 0.76rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}