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

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #050505;
}

::-webkit-scrollbar-thumb {
  background: #2a2a2a;
  border-radius: 5px;
  border: 2px solid #050505;
}

::-webkit-scrollbar-thumb:hover {
  background: #3a3a3a;
}

* {
  scrollbar-width: thin;
  scrollbar-color: #2a2a2a #050505;
}

body {
  height: 100%;
  overflow-x: hidden;
}

body {
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  background: #050505;
  color: #f5f5f5;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
  background: transparent;
  border: none;
}

button {
  cursor: pointer;
}

ul {
  list-style: none;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

.muted {
  color: #a0a0a0;
}

.page-wrapper {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 280px;
  border-right: 1px solid #1a1a1a;
  background: radial-gradient(circle at top left, #111 0, #050505 55%);
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 20;
}

.sidebar-inner {
  height: 100%;
  padding: 24px 24px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.content {
  margin-left: 280px;
  width: calc(100% - 280px);
  padding: 40px 56px;
  scroll-behavior: smooth;
}

.content-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.section {
  padding: 40px 0 80px;
  min-height: 100vh;
  position: relative;
}

.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    #2a2a2a 20%,
    #2a2a2a 80%,
    transparent 100%
  );
  margin: 0 auto 40px;
  position: relative;
  opacity: 0.6;
}

.section-divider::before,
.section-divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  background: #2a2a2a;
  border-radius: 50%;
  transform: translateY(-50%);
}

.section-divider::before {
  left: 20%;
}

.section-divider::after {
  right: 20%;
}

@media (max-width: 768px) {
  .section {
    min-height: auto;
  }
}

.section:last-of-type {
  border-bottom: none;
}

.section-header {
  margin-bottom: 12px;
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 11px;
  color: #a0a0a0;
  margin-bottom: 4px;
}

.section-title {
  font-size: 28px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-avatar {
  width: 64px;
  height: 64px;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid #ffffff1f;
}

.brand-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.15);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-name {
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-role {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #b0b0b0;
}

.nav {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  color: #b5b5b5;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
}

.nav-link:hover {
  background: #ffffff07;
  color: #f5f5f5;
  transform: translateX(4px);
}

.nav-link.active {
  background: #f5f5f5;
  color: #050505;
}

.nav-index {
  font-size: 11px;
  opacity: 0.85;
}

.sidebar-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.socials {
  display: flex;
  align-items: center;
  gap: 10px;
}

.social-link {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid #2c2c2c;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #d0d0d0;
  transition: background 0.25s ease, border-color 0.25s ease,
    transform 0.25s ease, color 0.25s ease;
}

.social-link:hover {
  background: #f5f5f5;
  color: #050505;
  border-color: #f5f5f5;
  transform: translateY(-2px);
}

.sidebar-toggle {
  display: none;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid #2c2c2c;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.sidebar-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: #f5f5f5;
  transition: transform 0.25s ease;
}

.sidebar-toggle.is-open span:first-child {
  transform: translateY(3px) rotate(45deg);
}

.sidebar-toggle.is-open span:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

.section-home {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  min-height: 100vh;
}

@media (max-width: 768px) {
  .section-home {
    min-height: auto;
    padding: 20px 0;
  }
}

.home-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  width: 100%;
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 11px;
  color: #a0a0a0;
  margin-bottom: 12px;
}

.home-heading {
  font-size: clamp(32px, 4vw, 40px);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  line-height: 1.3;
}

.home-role {
  margin-top: 12px;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #d0d0d0;
  min-height: 24px;
}

.typing-cursor {
  display: inline-block;
  width: 2px;
  margin-left: 2px;
  background: #f5f5f5;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

.home-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.home-actions a {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.home-stats {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid #1f1f1f;
  background: radial-gradient(circle at top left, #111 0, #050505 60%);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: #3a3a3a;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: #1a1a1a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #f5f5f5;
  flex-shrink: 0;
}

.stat-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-number {
  font-size: 24px;
  font-weight: 700;
  color: #f5f5f5;
  line-height: 1;
}

.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #a0a0a0;
}

.btn {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid #f5f5f5;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background 0.25s ease, color 0.25s ease, transform 0.18s ease,
    box-shadow 0.18s ease;
  position: relative;
  overflow: hidden;
}

.btn.ripple {
  position: relative;
  overflow: hidden;
}

.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transform: scale(0);
  animation: ripple-animation 0.6s ease-out;
  pointer-events: none;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

.btn.primary {
  background: #f5f5f5;
  color: #050505;
}

.btn.ghost {
  background: transparent;
  color: #f5f5f5;
  border-color: #666;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.45);
}

.btn.primary:hover {
  background: #ffffff;
}

.btn.ghost:hover {
  border-color: #f5f5f5;
}

.btn.full-width {
  width: 100%;
}

.home-visual {
  justify-self: end;
}

.home-photo-frame {
  position: relative;
  width: min(340px, 80vw);
}

.home-photo-border {
  position: absolute;
  inset: -12px -12px 12px 12px;
  border: 1px solid #2c2c2c;
  border-radius: 26px;
}

.home-photo {
  border-radius: 24px;
  border: 1px solid #ffffff0f;
  filter: grayscale(1) contrast(1.15);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.about-text p {
  font-size: 14px;
  line-height: 1.8;
  color: #d0d0d0;
}

.about-photo-frame {
  border-radius: 24px;
  padding: 10px;
  border: 1px solid #202020;
}

.about-photo-frame img {
  border-radius: 18px;
  filter: grayscale(1) contrast(1.1);
}

.skills-section {
  margin-top: 48px;
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.skill-name {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #f0f0f0;
}

.skill-percent {
  font-size: 12px;
  color: #a0a0a0;
  font-weight: 600;
}

.skill-bar {
  width: 100%;
  height: 4px;
  background: #1a1a1a;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, #f5f5f5 0%, #d0d0d0 100%);
  border-radius: 2px;
  width: 0%;
  transition: width 1.5s ease-out;
  position: relative;
}

.skill-progress::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.tech-stack {
  margin-top: 48px;
}

.tech-stack-title {
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #a0a0a0;
  margin-bottom: 20px;
}

.tech-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px 40px;
}

.tech-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tech-group-label {
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #f0f0f0;
}

.tech-group ul {
  padding-left: 20px;
}

.tech-group li {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.8;
  color: #ffffff;
  list-style: none;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 0;
}

.tech-group li::before {
  content: "▸";
  color: #a0a0a0;
  font-size: 12px;
  margin-right: -4px;
}

.tech-group li i {
  font-size: 16px;
  width: 20px;
  text-align: center;
  color: #d0d0d0;
  transition: color 0.2s ease, transform 0.2s ease;
}

.tech-group li:hover i {
  color: #f5f5f5;
  transform: scale(1.1);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.project-card {
  border-radius: 20px;
  border: 1px solid #1f1f1f;
  background: radial-gradient(circle at top, #141414 0, #050505 70%);
  padding: 0 0 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease,
    border-color 0.22s ease;
  height: 100%;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(
    circle at top right,
    rgba(255, 255, 255, 0.06),
    transparent 55%
  );
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.project-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: #4a4a4a;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
}

.project-card:hover .project-title {
  color: #ffffff;
  transform: translateX(4px);
  transition: color 0.25s ease, transform 0.25s ease;
}

.project-card:hover::before {
  opacity: 1;
}

.project-media {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid #1f1f1f;
}

.project-carousel {
  position: relative;
  width: 100%;
  height: 100%;
}

.project-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.project-slide.is-active {
  opacity: 1;
  position: relative;
}

.project-media img {
  width: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 16 / 9;
  filter: grayscale(1) contrast(1.05);
  transform: scale(1.02);
  transition: transform 0.35s ease, filter 0.35s ease;
}

.project-card:hover .project-media img {
  transform: scale(1.06);
  filter: grayscale(0.2) contrast(1.1);
}

.project-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid #ffffff55;
  background: rgba(5, 5, 5, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f5f5f5;
  font-size: 11px;
  z-index: 2;
  transition: background 0.2s ease, border-color 0.2s ease,
    transform 0.2s ease, opacity 0.2s ease;
  opacity: 0;
}

.project-nav.prev {
  left: 10px;
}

.project-nav.next {
  right: 10px;
}

.project-card:hover .project-nav {
  opacity: 1;
}

.project-nav:hover {
  background: #f5f5f5;
  color: #050505;
  border-color: #f5f5f5;
  transform: translateY(-50%) scale(1.05);
}

.project-header {
  padding: 14px 18px 4px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.project-title {
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  transition: color 0.25s ease, transform 0.25s ease;
}

.project-period {
  font-size: 11px;
  color: #a0a0a0;
}

.project-role {
  padding: 0 18px;
  font-size: 13px;
  color: #d0d0d0;
}

.project-tech {
  padding: 0 18px;
  font-size: 12px;
  color: #b5b5b5;
  display: none;
}

.project-tech-badges {
  padding: 0 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 6px;
  background: #1a1a1a;
  border: 1px solid #2c2c2c;
  font-size: 11px;
  color: #d0d0d0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all 0.2s ease;
  cursor: default;
}

.tech-badge i {
  font-size: 12px;
  color: #a0a0a0;
  transition: color 0.2s ease, transform 0.2s ease;
}

.tech-badge:hover {
  background: #252525;
  border-color: #3a3a3a;
  color: #f5f5f5;
  transform: translateY(-2px);
}

.tech-badge:hover i {
  color: #f5f5f5;
  transform: scale(1.1);
}

.project-description {
  padding: 0 18px;
  font-size: 13px;
  line-height: 1.6;
  color: #d8d8d8;
}

.project-footer {
  margin-top: auto;
  padding: 0 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 11px;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: gap 0.2s ease, border-color 0.2s ease;
}

.project-link i {
  font-size: 10px;
}

.project-link:hover {
  gap: 9px;
  border-color: #f5f5f5;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: flex-start;
}

.contact-intro {
  font-size: 14px;
  line-height: 1.7;
  color: #d0d0d0;
  margin-bottom: 24px;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-list li {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.contact-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #1a1a1a;
  border: 1px solid #2c2c2c;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #f5f5f5;
  flex-shrink: 0;
  transition: all 0.25s ease;
}

.contact-item:hover .contact-icon {
  background: #252525;
  border-color: #3a3a3a;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.contact-list .label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #a0a0a0;
}

.contact-list a {
  font-size: 14px;
  border-bottom: 1px solid transparent;
  width: fit-content;
  transition: border-color 0.22s ease;
}

.contact-list a:hover {
  border-color: #f5f5f5;
}

.contact-socials {
  margin-top: 24px;
}

.contact-socials .label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #a0a0a0;
  margin-bottom: 8px;
}

.contact-info .links-quick-block {
  margin-top: 24px;
}

.contact-info .links-quick-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 15px;
}

.contact-info .quick-link-btn {
  width: 100%;
  justify-content: flex-start;
}

.contact-form-wrapper {
  border-radius: 20px;
  border: 1px solid #1e1e1e;
  padding: 18px 18px 16px;
  background: radial-gradient(circle at top left, #111 0, #050505 66%);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field {
  position: relative;
}

.form-field label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #a0a0a0;
  transition: all 0.25s ease;
}

.form-field.floating-label {
  position: relative;
}

.form-field.floating-label label {
  position: absolute;
  left: 10px;
  top: 8px;
  pointer-events: none;
  transition: all 0.25s ease;
  background: #050505;
  padding: 0 4px;
  transform-origin: left top;
}

.form-field.floating-label input:focus + label,
.form-field.floating-label input:not(:placeholder-shown) + label,
.form-field.floating-label textarea:focus + label,
.form-field.floating-label textarea:not(:placeholder-shown) + label {
  top: -8px;
  left: 8px;
  font-size: 10px;
  color: #f5f5f5;
  transform: scale(0.9);
}

.form-field input,
.form-field textarea {
  border-radius: 12px;
  border: 1px solid #2c2c2c;
  padding: 8px 10px;
  font-size: 13px;
  background: #050505;
  transition: border-color 0.22s ease, box-shadow 0.22s ease,
    background 0.22s ease;
  resize: vertical;
  width: 100%;
}

.form-field.floating-label input,
.form-field.floating-label textarea {
  padding-top: 12px;
  padding-bottom: 12px;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: #ffffffaa;
  background: #080808;
  box-shadow: 0 0 0 1px #ffffff40;
}

.form-field input:focus + label,
.form-field textarea:focus + label {
  color: #f5f5f5;
}

.form-note {
  margin-top: 6px;
  font-size: 11px;
}

.form-message {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  display: none;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s ease;
}

.form-message.show {
  display: flex;
}

.form-message.success {
  background: rgba(245, 245, 245, 0.1);
  border: 1px solid rgba(245, 245, 245, 0.3);
  color: #f5f5f5;
}

.form-message.error {
  background: rgba(200, 50, 50, 0.1);
  border: 1px solid rgba(200, 50, 50, 0.3);
  color: #ff6b6b;
}

.form-message i {
  font-size: 16px;
}

.form-message.success i {
  color: #4ade80;
}

.form-message.error i {
  color: #ff6b6b;
}

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

.footer {
  padding: 32px 0 12px;
  font-size: 11px;
  color: #747474;
}

.footer p {
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #f5f5f5 0%, #a0a0a0 100%);
  z-index: 1000;
  transition: width 0.1s ease-out;
  box-shadow: 0 2px 8px rgba(245, 245, 245, 0.3);
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #1a1a1a;
  border: 1px solid #2c2c2c;
  color: #f5f5f5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 999;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

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

.back-to-top:hover {
  background: #f5f5f5;
  color: #050505;
  border-color: #f5f5f5;
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 1024px) {
  .sidebar {
    width: 230px;
  }

  .content {
    margin-left: 230px;
    width: calc(100% - 230px);
    padding: 32px 28px;
  }

  .content-inner {
    max-width: 100%;
  }

  .home-inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
    gap: 36px;
  }

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

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: auto;
    min-height: 56px;
    max-height: 56px;
    border-right: none;
    border-bottom: 1px solid #1a1a1a;
    background: radial-gradient(circle at top, #111 0, #050505 60%);
    z-index: 100;
    overflow: hidden;
  }

  .sidebar-inner {
    padding: 10px 16px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    height: 56px;
    gap: 12px;
  }

  .brand {
    flex: 1;
    gap: 10px;
    min-width: 0;
  }

  .brand-avatar {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
  }

  .brand-text {
    min-width: 0;
    flex: 1;
  }

  .brand-name {
    font-size: 14px;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brand-role {
    display: none;
  }

  .sidebar-footer {
    flex-shrink: 0;
    justify-content: flex-end;
    gap: 8px;
    margin: 0;
  }

  .socials {
    display: none; 
  }

  .sidebar-toggle {
    display: inline-flex;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
  }

  .nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: rgba(5, 5, 5, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #1a1a1a;
    padding: 12px 16px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
    flex-direction: column;
    gap: 6px;
    z-index: 99;
    display: flex;
    margin-top: 0;
  }

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

  .nav-link {
    padding: 10px 12px;
    font-size: 13px;
  }

  .content {
    margin-left: 0;
    margin-top: 56px;
    width: 100%;
    padding: 20px 16px 40px;
  }

  .content-inner {
    max-width: 100%;
  }

  .section {
    padding: 32px 0 50px;
    min-height: auto;
  }

  .section-header {
    margin-bottom: 20px;
  }

  .home-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    text-align: center;
  }

  .home-text {
    text-align: center;
  }

  .home-heading {
    font-size: clamp(24px, 6vw, 32px);
  }

  .home-role {
    font-size: 14px;
    margin-top: 10px;
  }

  .home-actions {
    justify-content: center;
    margin-top: 24px;
    flex-direction: column;
    width: 100%;
  }

  .home-actions .btn {
    width: 100%;
  }

  .btn {
    padding: 12px 24px;
    font-size: 12px;
    min-height: 44px; 
  }

  .home-stats {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 32px;
  }

  .stat-card {
    padding: 14px;
  }

  .stat-number {
    font-size: 20px;
  }

  .project-tech-badges {
    padding: 0 16px;
    gap: 6px;
  }

  .tech-badge {
    font-size: 10px;
    padding: 5px 8px;
  }

  .home-visual {
    justify-self: center;
  }

  .home-photo-frame {
    width: min(280px, 85vw);
    margin: 0 auto;
  }

  .about-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .about-text h1 {
    font-size: 24px;
    margin-bottom: 12px;
  }

  .about-text p {
    font-size: 13px;
    line-height: 1.7;
  }

  .about-photo-frame {
    max-width: 320px;
    margin: 0 auto;
  }

  .tech-stack {
    margin-top: 32px;
  }

  .tech-stack-title {
    font-size: 14px;
    margin-bottom: 16px;
  }

  .tech-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px 0;
  }

  .tech-group-label {
    font-size: 12px;
  }

  .tech-group li {
    font-size: 13px;
  }

  .projects-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .project-card {
    padding: 0 0 14px;
  }

  .project-header {
    padding: 12px 16px 4px;
  }

  .project-title {
    font-size: 15px;
  }

  .project-role,
  .project-tech,
  .project-description {
    padding: 0 16px;
    font-size: 12px;
  }

  .project-footer {
    padding: 0 16px;
  }

  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .contact-intro {
    font-size: 13px;
    margin-bottom: 20px;
  }

  .contact-form-wrapper {
    padding: 16px;
  }

  .form-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .form-field input,
  .form-field textarea {
    padding: 10px 12px;
    font-size: 14px;
    min-height: 44px;
  }

  .form-field.floating-label input,
  .form-field.floating-label textarea {
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .form-field.floating-label label {
    top: 10px;
    left: 12px;
  }

  .form-field.floating-label input:focus + label,
  .form-field.floating-label input:not(:placeholder-shown) + label,
  .form-field.floating-label textarea:focus + label,
  .form-field.floating-label textarea:not(:placeholder-shown) + label {
    top: -8px;
    left: 8px;
  }

  .form-field textarea {
    min-height: 120px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    font-size: 14px;
  }

  .section-divider {
    margin-bottom: 32px;
  }
}

@media (max-width: 480px) {
  .sidebar {
    min-height: 52px;
    max-height: 52px;
  }

  .sidebar-inner {
    padding: 8px 12px;
    min-height: 52px;
    height: 52px;
  }

  .brand {
    gap: 8px;
  }

  .brand-avatar {
    width: 36px;
    height: 36px;
  }

  .brand-name {
    font-size: 12px;
  }

  .sidebar-toggle {
    width: 30px;
    height: 30px;
  }

  .nav {
    top: 52px;
    padding: 10px 14px;
  }

  .nav-link {
    padding: 10px;
    font-size: 12px;
  }

  .content {
    margin-top: 52px;
    padding: 16px 12px 32px;
  }

  .brand {
    gap: 12px;
  }

  .brand-avatar {
    width: 56px;
    height: 56px;
  }

  .brand-name {
    font-size: 14px;
  }

  .brand-role {
    font-size: 10px;
  }

  .nav-link {
    padding: 10px 12px;
    font-size: 12px;
  }

  .social-link {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  .home-heading {
    font-size: 22px;
    line-height: 1.2;
  }

  .home-role {
    font-size: 13px;
  }

  .home-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
    padding: 14px 20px;
  }

  .home-photo-frame {
    width: min(240px, 90vw);
  }

  .about-text h1 {
    font-size: 20px;
  }

  .about-text p {
    font-size: 12px;
  }

  .about-photo-frame {
    max-width: 280px;
  }

  .tech-stack-title {
    font-size: 13px;
  }

  .tech-group-label {
    font-size: 11px;
  }

  .tech-group li {
    font-size: 12px;
  }

  .tech-group li i {
    font-size: 14px;
    width: 18px;
  }

  .skills-section {
    margin-top: 32px;
  }

  .skill-name {
    font-size: 12px;
  }

  .skill-percent {
    font-size: 11px;
  }

  .project-title {
    font-size: 14px;
  }

  .project-period {
    font-size: 10px;
  }

  .contact-list a {
    font-size: 13px;
  }

  .contact-item {
    gap: 10px;
  }

  .contact-icon {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }

  .form-field label {
    font-size: 10px;
  }

  .footer {
    padding: 24px 0 10px;
    font-size: 10px;
  }
}