.sidebar {
  grid-area: sidebar;
  position: sticky;
  top: 0;
  left: 0;
  height: 100vh;
  background: linear-gradient(
    180deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md);
  box-shadow: 2px 0 10px var(--shadow);
  transition: var(--transition);
  z-index: 1000;
}

.sidebar-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  width: 35px;
  height: 35px;
  display: none;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 10001;
}
.sidebar.active {
  transform: translateX(0);
}
.sidebar-close:hover {
  background: rgba(193, 18, 31, 0.1);
  color: var(--primary-red);
  transform: rotate(90deg);
}

@media (max-width: 768px) {
  .sidebar-close {
    display: flex;
  }

  .sidebar.active .sidebar-close {
    display: flex;
  }
}
.nav-brand {
  text-align: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--lines);
  margin-bottom: var(--spacing-lg);
}
.nav-brand h1 {
  font-family: "Bitter", serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}
.nav-brand span {
  font-family: "Raleway", sans-serif;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 400;
}

.nav-menu {
  list-style: none;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.nav-menu li {
  width: 100%;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  text-decoration: none;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: var(--transition);
  font-weight: 700;
  position: relative;
  overflow: hidden;
  font-family: "Raleway", sans-serif;
}

.nav-link i {
  font-size: 1.2rem;
  width: 20px;
  text-align: center;
}

.nav-link span {
  font-size: 1rem;
}

.nav-link:hover {
  background: rgba(102, 155, 188, 0.1);
  color: var(--primary-blue);
  transform: translateX(5px);
}
.nav-link.active {
  background: linear-gradient(135deg, var(--primary-red), var(--primary-dark));
  color: var(--white);
  box-shadow: 0 4px 15px rgba(193, 18, 31, 0.2);
}

.nav-footer {
  margin-top: var(--spacing-xs);
  padding-top: var(--spacing-xs);
  border-top: 1px solid var(--lines);
}
.theme-toggle {
  display: flex;
  align-items: center;
  justify-self: center;
  gap: var(--spacing-xs);
  width: 50%;
  padding: var(--spacing-xs);
  background: transparent;
  border: 2px solid var(--lines);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: var(--spacing-xs);
  font-family: "Raleway", sans-serif;
}

.theme-toggle:hover {
  background: var(--secondary-blue);
  color: var(--white);
  border-color: var(--secondary-blue);
}

.theme-toggle i {
  font-size: 1rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: var(--bg-card);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  transition: var(--transition);
  font-size: 1.2rem;
}
.social-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px var(--shadow);
}

.social-link:hover:nth-child(1) {
  background: #333;
  color: white;
  border-color: #333;
}
.social-link:hover:nth-child(2) {
  background: #0077b5;
  color: white;
  border-color: #0077b5;
}

/* sections */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
  position: relative;
  overflow: hidden;
}
.circles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}
.circle {
  position: absolute;
  border-radius: 50%;
  transition: all 0.7s cubic-bezier(0.23, 1, 0.32, 1);
  filter: blur(0.8px);
}
.circle-1 {
  top: 35%;
  left: 70%;
  width: 90px;
  height: 90px;
  background: linear-gradient(60deg, var(--primary-blue), var(--primary-red));
  opacity: 0.06;
}

.circle-2 {
  top: 60%;
  right: 25%;
  width: 140px;
  height: 140px;
  background: linear-gradient(
    120deg,
    var(--primary-blue),
    var(--light-pink),
    var(--primary-red)
  );
  opacity: 0.05;
}

.circle-3 {
  top: 20%;
  left: 25%;
  width: 70px;
  height: 70px;
  background: linear-gradient(200deg, var(--accent-cream), var(--primary-red));
  opacity: 0.07;
}

.circle-4 {
  bottom: 30%;
  right: 10%;
  width: 110px;
  height: 110px;
  background: linear-gradient(300deg, var(--secondary-blue), var(--light-pink));
  opacity: 0.04;
}
.hero-section:hover .circle-1 {
  transform: scale(1.3) rotate(90deg);
  opacity: 0.15;
  filter: blur(0.3px);
}

.hero-section:hover .circle-2 {
  transform: scale(1.1) rotate(-45deg);
  opacity: 0.15;
  filter: blur(0.3px);
}

.hero-section:hover .circle-3 {
  transform: scale(1.4) rotate(180deg);
  opacity: 0.15;
  filter: blur(0.3px);
}

.hero-section:hover .circle-4 {
  transform: scale(1.2) rotate(270deg);
  opacity: 0.12;
  filter: blur(0.3px);
}
.circle-5 {
  bottom: 25%;
  left: 15%;
  width: 60px;
  height: 60px;
  background: linear-gradient(150deg, var(--primary-blue), var(--accent-cream));
  opacity: 0.08;
}
.hero-section:hover .circle-5 {
  transform: scale(1.5) rotate(120deg);
  opacity: 0.18;
  filter: blur(0.3px);
}
.hero-section::before {
  content: "";
  position: absolute;
  border-radius: 50%;
  transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
  pointer-events: none;
  filter: blur(0.5px);
  top: 15%;
  right: 20%;
  width: 180px;
  height: 180px;
  background: linear-gradient(
    45deg,
    var(--primary-red),
    var(--accent-cream),
    var(--primary-blue)
  );
  opacity: 0.12;
}

.hero-section:hover::before {
  transform: scale(1.3) rotate(180deg);
  opacity: 0.25;
  background: linear-gradient(
    225deg,
    var(--accent-cream),
    var(--light-pink),
    var(--primary-red),
    var(--primary-blue)
  );
}
.hero-content {
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-md);
  position: relative;
  z-index: 2;
}
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}
.hero-description {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.hero-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.hero-buttons .btn {
  padding: 15px 30px;
  font-size: 1.1rem;
  font-weight: 600;
  min-width: 180px;
}
.hero-content {
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 768px) {
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }
}

.about-section {
  background: var(--bg-primary);
  padding: var(--spacing-xl) var(--spacing-md);
}
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
  max-width: 1000px;
  margin: 0 auto;
}
.about-text {
  font-size: 1.1rem;
}

.about-text p {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
  color: var(--text-secondary);
}
.about-text p:first-child {
  font-size: 1.2rem;
  font-weight: 500;
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-sm);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.skill-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(102, 155, 188, 0.1),
    transparent
  );
  transition: left 0.5s;
}

.skill-item:hover::before {
  left: 100%;
}

.skill-item:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 15px 35px var(--shadow);
  border-color: var(--secondary-blue);
}

.skill-item i {
  font-size: 2rem;
  margin-bottom: var(--spacing-xs);
  color: var(--icon);
  transition: all 0.3s ease;
}

.skill-item:hover i {
  transform: scale(1.2) rotate(5deg);
  color: var(--icon-after);
}

.skill-item span {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
}
.projects-section {
  background: var(--bg-secondary);
  padding: var(--spacing-xl) var(--spacing-md);
}
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}
.project-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 5px 15px var(--shadow);
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}
.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px var(--shadow);
}
.project-image {
  position: relative;
  overflow: hidden;
  height: 200px;
  background: var(--bg-secondary);
}
.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.project-card:hover .project-image img {
  transform: scale(1.1);
}
.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(120, 0, 0, 0.9),
    rgba(193, 18, 31, 0.8)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.project-card:hover .project-overlay {
  opacity: 1;
}

.project-links {
  display: flex;
  gap: var(--spacing-md);
}
.project-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 12px 20px;
  background: var(--white);
  color: var(--primary-dark);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
.project-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  background: var(--accent-cream);
}
.project-link i {
  font-size: 1rem;
}
.project-info {
  padding: var(--spacing-lg);
}
.project-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
}
.project-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}
.tech-tag {
  display: inline-block;
  padding: 6px 12px;
  background: linear-gradient(135deg, var(--white), var(--text-secondary));
  color: var(--bg-primary);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 20px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.tech-tag:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 4px 12px rgba(102, 155, 188, 0.4);
  background: var(--white);
  color: var(--primary-blue);
  border: 2px solid var(--secondary-blue);
}
.contact-section {
  background: var(--bg-primary);
  padding: var(--spacing-xl) var(--spacing-md);
}
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
  align-items: start;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}
.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}
.contact-item:hover {
  transform: translateX(10px);
  box-shadow: 0 8px 25px var(--shadow);
  border-color: var(--secondary-blue);
}
.contact-item i {
  font-size: 1.5rem;
  color: var(--primary-red);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(193, 18, 31, 0.1);
  border-radius: 50%;
  transition: var(--transition);
}
.contact-item:hover i {
  background: var(--primary-red);
  color: var(--white);
  transform: scale(1.1);
}
.contact-details h4 {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}
.contact-details p {
  color: var(--text-secondary);
  margin: 0;
}
.contact-form {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: 0 5px 15px var(--shadow);
}
.form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.form-group {
  position: relative;
}
.form-input {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all 0.3s ease;
  resize: vertical;
}
.form-input:focus {
  outline: none;
  border-color: var(--text-secondary);
  box-shadow: 0 0 0 3px rgba(102, 155, 188, 0.1);
  transform: translateY(-2px);
}
.form-input::placeholder {
  color: var(--text-muted);
  transition: var(--transition);
}
.form-input:focus::placeholder {
  opacity: 0.7;
  transform: translateX(10px);
}
textarea.form-input {
  min-height: 120px;
  max-height: 200px;
  font-family: inherit;
}
.form .btn-primary {
  margin-top: var(--spacing-sm);
  padding: 15px 30px;
  font-size: 1.1rem;
  justify-self: flex-start;
  position: relative;
  overflow: hidden;
}
.form .btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}
.form .btn-primary:hover::before {
  left: 100%;
}