:root {
  --bg: #050816;
  --white: #ffffff;
  --text: #d8defd;
  --muted: #aab5e8;
  --cyan: #00f5ff;
  --purple: #7b61ff;
  --pink: #ff4ecd;
  --glass: rgba(255, 255, 255, 0.085);
  --border: rgba(255, 255, 255, 0.14);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--white);
  overflow-x: hidden;
}

#vanta-bg {
  position: fixed;
  inset: 0;
  z-index: -6;
}

#particles-js {
  position: fixed;
  inset: 0;
  z-index: -5;
}

.aurora-bg {
  position: fixed;
  inset: 0;
  z-index: -4;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(
      circle at 18% 22%,
      rgba(0, 245, 255, 0.28),
      transparent 26%
    ),
    radial-gradient(
      circle at 78% 18%,
      rgba(155, 92, 255, 0.28),
      transparent 27%
    ),
    radial-gradient(
      circle at 50% 82%,
      rgba(255, 78, 205, 0.16),
      transparent 30%
    );
  animation: auroraShift 12s ease-in-out infinite alternate;
}

.aurora-bg::before,
.aurora-bg::after {
  content: "";
  position: absolute;
  width: 80vw;
  height: 80vw;
  border-radius: 42% 58% 70% 30% / 45% 45% 55% 55%;
  filter: blur(48px);
  opacity: 0.28;
  mix-blend-mode: screen;
  animation: morphBlob 16s ease-in-out infinite alternate;
}

.aurora-bg::before {
  background: linear-gradient(135deg, var(--cyan), var(--purple), transparent);
  left: -18vw;
  top: -16vw;
}

.aurora-bg::after {
  background: linear-gradient(135deg, var(--pink), var(--cyan), transparent);
  right: -20vw;
  bottom: -22vw;
  animation-delay: 2.5s;
}

.mesh-lines {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 92, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(
    circle at 50% 30%,
    black 0%,
    black 45%,
    transparent 78%
  );
  transform: perspective(700px) rotateX(58deg) translateY(-14%);
  transform-origin: top;
  animation: meshMove 9s linear infinite;
}

.cursor-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 245, 255, 0.16), transparent 62%);
  pointer-events: none;
  z-index: -1;
  transform: translate(-50%, -50%);
}

.scan-line {
  position: fixed;
  left: 0;
  top: -10%;
  width: 100%;
  height: 120px;
  background: linear-gradient(
    to bottom,
    transparent,
    rgba(0, 245, 255, 0.045),
    transparent
  );
  z-index: 2;
  pointer-events: none;
  animation: scan 7s linear infinite;
  mix-blend-mode: screen;
}

.hero-orb {
  position: fixed;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  right: 11%;
  top: 22%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 255, 255, 0.95),
    rgba(0, 245, 255, 0.58) 18%,
    rgba(123, 97, 255, 0.28) 45%,
    transparent 70%
  );
  box-shadow:
    0 0 80px rgba(0, 245, 255, 0.28),
    inset 0 0 45px rgba(255, 255, 255, 0.16);
  opacity: 0.88;
  animation:
    orbFloat 6s ease-in-out infinite alternate,
    orbSpin 14s linear infinite;
  z-index: -1;
}

.hero-orb::before,
.hero-orb::after {
  content: "";
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  border: 1px solid rgba(0, 245, 255, 0.28);
  transform: rotateX(68deg) rotateZ(25deg);
}

.hero-orb::after {
  inset: -34px;
  border-color: rgba(155, 92, 255, 0.28);
  transform: rotateX(68deg) rotateZ(-35deg);
}

.floating-tech {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.tech-chip {
  position: absolute;
  padding: 9px 14px;
  border-radius: 999px;
  color: rgba(220, 250, 255, 0.82);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(0, 245, 255, 0.16);
  backdrop-filter: blur(10px);
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 0 24px rgba(0, 245, 255, 0.08);
  animation: chipFloat 11s ease-in-out infinite alternate;
}

.tech-chip:nth-child(1) {
  left: 8%;
  top: 22%;
  animation-delay: 0s;
}
.tech-chip:nth-child(2) {
  right: 10%;
  top: 28%;
  animation-delay: 1.2s;
}
.tech-chip:nth-child(3) {
  left: 12%;
  bottom: 22%;
  animation-delay: 2.1s;
}
.tech-chip:nth-child(4) {
  right: 16%;
  bottom: 17%;
  animation-delay: 3.1s;
}
.tech-chip:nth-child(5) {
  left: 46%;
  top: 16%;
  animation-delay: 4s;
}
.tech-chip:nth-child(6) {
  left: 53%;
  bottom: 12%;
  animation-delay: 5s;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 8%;
  background: rgba(5, 8, 22, 0.68);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.1;
}

.logo-name {
  color: white;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-role {
  color: #00f5ff;
  font-size: 11px;
  font-weight: 600;
  opacity: 0.8;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.nav-links a {
  color: var(--white);
  text-decoration: none;
  margin-left: 26px;
  font-size: 14px;
  opacity: 0.82;
  transition: 0.25s;
}

.nav-links a:hover {
  color: var(--cyan);
  opacity: 1;
}

.menu-btn {
  display: none;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 9px 12px;
  cursor: pointer;
}

.section {
  padding: 95px 8%;
}

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 54px;
  padding-top: 140px;
}

.badge {
  display: inline-flex;
  padding: 10px 17px;
  border-radius: 999px;
  border: 1px solid rgba(0, 245, 255, 0.45);
  background: rgba(0, 245, 255, 0.08);
  color: #bdfcff;
  font-size: 14px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(48px, 7vw, 92px);
  line-height: 0.98;
  letter-spacing: -4px;
  margin-bottom: 24px;
  text-shadow: 0 0 35px rgba(0, 245, 255, 0.1);
}

.gradient-text {
  background: linear-gradient(90deg, var(--cyan), var(--white), #9b5cff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  color: #c8d2ff;
  font-size: 19px;
  line-height: 1.75;
  max-width: 680px;
  margin-bottom: 34px;
}

.typing-line {
  display: inline-block;
  color: var(--cyan);
  font-weight: 900;
  min-height: 30px;
  border-right: 2px solid var(--cyan);
  padding-right: 5px;
  animation: blink 0.75s step-end infinite;
}

.hero-actions,
.contact-links {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn {
  position: relative;
  overflow: hidden;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;

  padding: 14px 24px;
  border-radius: 15px;

  color: white;
  text-decoration: none;
  font-weight: 700;

  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);

  backdrop-filter: blur(12px);

  transition:
    transform 0.25s ease,
    background 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}
.btn:hover {
  transform: translateY(-4px);

  background: linear-gradient(
    135deg,
    rgba(0, 245, 255, 0.22),
    rgba(123, 97, 255, 0.22)
  );

  border-color: rgba(0, 245, 255, 0.45);

  box-shadow:
    0 0 25px rgba(0, 245, 255, 0.22),
    0 0 60px rgba(123, 97, 255, 0.16);
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(255, 255, 255, 0.35),
    transparent
  );
  transform: translateX(-120%);
  transition: 0.6s;
}

.btn-primary:hover::before {
  transform: translateX(120%);
}

.btn:hover {
  transform: translateY(-4px);
}

.profile-card,
.glass-card,
.skill,
.project-card,
.timeline-item,
.contact-box {
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(18px);
  transform-style: preserve-3d;
}

.profile-card {
  position: relative;
  padding: 28px;
  border-radius: 32px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: 0.32s;
}

.profile-card:hover,
.project-card:hover {
  transform: perspective(900px) rotateX(3deg) rotateY(-4deg) translateY(-10px);

  background: linear-gradient(
    135deg,
    rgba(0, 245, 255, 0.14),
    rgba(123, 97, 255, 0.14)
  );

  border-color: rgba(0, 245, 255, 0.35);

  box-shadow:
    0 0 25px rgba(0, 245, 255, 0.16),
    0 0 60px rgba(123, 97, 255, 0.1);
}

.profile-avatar {
  width: 160px;
  height: 160px;
  margin: 0 auto 25px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid rgba(255, 255, 255, 0.15);
  box-shadow:
    0 0 30px rgba(0, 245, 255, 0.25),
    0 0 80px rgba(0, 245, 255, 0.12);
  position: relative;
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.profile-card h2,
.profile-card .role {
  text-align: center;
}

.profile-card h2 {
  font-size: 28px;
  margin-bottom: 8px;
}

.role {
  color: var(--cyan);
  font-weight: 700;
  margin-bottom: 24px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.stat {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);

  border-radius: 18px;
  padding: 22px;

  transition:
    transform 0.3s ease,
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}
.stat:hover {
  transform: translateY(-6px);

  background: linear-gradient(
    135deg,
    rgba(0, 245, 255, 0.16),
    rgba(123, 97, 255, 0.16)
  );

  border-color: rgba(0, 245, 255, 0.35);

  box-shadow:
    0 0 20px rgba(0, 245, 255, 0.16),
    0 0 50px rgba(123, 97, 255, 0.1);
}
.stat-link {
  text-decoration: none;
  color: white;
  display: block;
  width: 100%;
  height: 100%;
}

.stat strong {
  display: block;
  font-size: 22px;
  margin-bottom: 4px;
}

.stat span {
  color: #b8c3ef;
  font-size: 13px;
}

.section-title {
  text-align: center;
  margin-bottom: 52px;
}

.section-title h2 {
  font-size: clamp(34px, 5vw, 58px);
  margin-bottom: 13px;
  letter-spacing: -1.5px;
}

.section-title p {
  color: #b8c3ef;
  font-size: 17px;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.65;
}

.about-grid,
.projects-grid {
  display: grid;
  gap: 24px;
}

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

.glass-card {
  padding: 28px;

  border-radius: 28px;

  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);

  backdrop-filter: blur(16px);

  transition:
    transform 0.3s ease,
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-8px);

  background: linear-gradient(
    135deg,
    rgba(0, 245, 255, 0.14),
    rgba(123, 97, 255, 0.14)
  );

  border-color: rgba(0, 245, 255, 0.35);

  box-shadow:
    0 0 25px rgba(0, 245, 255, 0.16),
    0 0 60px rgba(123, 97, 255, 0.1);
}

.skill:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.28);
}

.glass-card h3,
.skill h3,
.project-card h3,
.timeline-item h3 {
  margin-bottom: 14px;
}

.glass-card p,
.skill p,
.project-card p,
.timeline-item p {
  color: var(--text);
  line-height: 1.7;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.skill {
  min-height: 260px;
  padding: 28px;
  border-radius: 24px;

  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.skill:hover {
  transform: translateY(-8px);

  background: linear-gradient(
    135deg,
    rgba(0, 245, 255, 0.14),
    rgba(123, 97, 255, 0.14)
  );

  border-color: rgba(0, 245, 255, 0.35);

  box-shadow:
    0 0 25px rgba(0, 245, 255, 0.16),
    0 0 60px rgba(123, 97, 255, 0.1);
}

.skill span {
  display: block;
  font-size: 30px;
  margin-bottom: 12px;
}

.skill p {
  font-size: 14px;
}
.skill-icon-box {
  width: 82px;
  height: 82px;

  border-radius: 14px;

  display: flex;
  align-items: center;
  justify-content: center;

  margin-bottom: 16px;

  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.skill-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  display: block;
}
.skill-link {
  text-decoration: none;
  color: white;
}
.project-link {
  text-decoration: none;
  color: white;
  display: block;
}
.certificate-link {
  text-decoration: none;
  color: white;
  display: block;
}
.project-link:visited {
  color: white;
}
.projects-grid {
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
}

.project-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 27px;
  border-radius: 30px;
  transition: 0.32s;
  overflow: hidden;
  position: relative;
}

.project-card::after {
  content: "";
  position: absolute;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background: rgba(0, 245, 255, 0.15);
  top: -80px;
  right: -80px;
  filter: blur(10px);
}

.project-icon {
  font-size: 40px;
  margin-bottom: 20px;
}

.tags {
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
}

.tags span {
  padding: 7px 11px;
  border-radius: 999px;
  color: #bdfcff;
  background: rgba(0, 245, 255, 0.09);
  border: 1px solid rgba(0, 245, 255, 0.18);
  font-size: 12px;
  font-weight: 700;
}

.timeline {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
}

.timeline-item {
  padding: 25px;
  border-radius: 25px;
}
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.certificate-card {
  padding: 24px;
  border-radius: 24px;

  background: rgba(255, 255, 255, 0.085);
  border: 1px solid rgba(255, 255, 255, 0.14);

  backdrop-filter: blur(18px);

  transition:
    transform 0.3s ease,
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.certificate-card:hover {
  transform: translateY(-8px);

  background: linear-gradient(
    135deg,
    rgba(0, 245, 255, 0.14),
    rgba(123, 97, 255, 0.14)
  );

  border-color: rgba(0, 245, 255, 0.35);

  box-shadow:
    0 0 25px rgba(0, 245, 255, 0.16),
    0 0 60px rgba(123, 97, 255, 0.1);
}

.certificate-icon {
  width: 82px;
  height: 82px;

  margin-bottom: 18px;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 18px;
  overflow: hidden;

  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);

  box-shadow: 0 0 18px rgba(0, 245, 255, 0.12);
}

.certificate-icon img {
  width: 85%;
  height: 85%;
  object-fit: contain;
  border-radius: 14px;
}
.akbank-logo {
  width: 82% !important;
  height: 82% !important;
  object-fit: cover !important;
  border-radius: 14px !important;
}
.summit-logo {
  width: 110% !important;
  height: 110% !important;
}

.certificate-card h3 {
  margin-bottom: 10px;
}

.certificate-card p {
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 10px;
}

.certificate-card span {
  display: block;
  color: var(--cyan);
  font-weight: 800;
  margin-bottom: 16px;
}

.certificate-btn {
  display: inline-block;
  padding: 9px 14px;
  border-radius: 999px;

  color: #bdfcff;
  text-decoration: none;

  background: rgba(0, 245, 255, 0.09);
  border: 1px solid rgba(0, 245, 255, 0.18);

  font-size: 13px;
  font-weight: 700;
}

.certificate-btn:hover {
  background: rgba(0, 245, 255, 0.18);
}
.certificate-card:hover .certificate-icon {
  transform: scale(1.06);
  transition: 0.3s ease;
}

@media (max-width: 1000px) {
  .certificates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .certificates-grid {
    grid-template-columns: 1fr;
  }
}
.date {
  color: var(--cyan);
  font-weight: 800;
  margin-bottom: 8px;
}

.contact-box {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
  padding: 48px;
  border-radius: 34px;

  transition:
    transform 0.3s ease,
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.contact-box:hover {
  transform: translateY(-8px);

  background: linear-gradient(
    135deg,
    rgba(0, 245, 255, 0.14),
    rgba(123, 97, 255, 0.14)
  );

  border-color: rgba(0, 245, 255, 0.35);

  box-shadow:
    0 0 25px rgba(0, 245, 255, 0.16),
    0 0 60px rgba(123, 97, 255, 0.1);
}

.contact-box h2 {
  font-size: clamp(34px, 5vw, 58px);
  margin-bottom: 18px;
}

.contact-box p {
  color: #c8d2ff;
  line-height: 1.75;
  margin-bottom: 30px;
  font-size: 18px;
}

.contact-links {
  justify-content: center;
}

footer {
  text-align: center;
  padding: 40px 8%;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

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

/* Animations */
@keyframes auroraShift {
  from {
    transform: scale(1) rotate(0deg);
    filter: hue-rotate(0deg);
  }
  to {
    transform: scale(1.08) rotate(2deg);
    filter: hue-rotate(35deg);
  }
}

@keyframes morphBlob {
  0% {
    transform: translate(0, 0) rotate(0deg);
    border-radius: 42% 58% 70% 30% / 45% 45% 55% 55%;
  }
  50% {
    transform: translate(8vw, 5vh) rotate(90deg);
    border-radius: 60% 40% 35% 65% / 60% 35% 65% 40%;
  }
  100% {
    transform: translate(2vw, 12vh) rotate(180deg);
    border-radius: 35% 65% 55% 45% / 45% 65% 35% 55%;
  }
}

@keyframes meshMove {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 0 72px;
  }
}

@keyframes chipFloat {
  from {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0.38;
  }
  to {
    transform: translateY(-34px) translateX(18px) scale(1.04);
    opacity: 0.86;
  }
}

@keyframes scan {
  from {
    transform: translateY(-20vh);
  }
  to {
    transform: translateY(120vh);
  }
}

@keyframes orbFloat {
  from {
    transform: translateY(0) scale(1);
  }
  to {
    transform: translateY(-22px) scale(1.04);
  }
}

@keyframes orbSpin {
  from {
    filter: hue-rotate(0deg);
  }
  to {
    filter: hue-rotate(360deg);
  }
}

@keyframes blink {
  50% {
    border-color: transparent;
  }
}

/* Responsive */
@media (max-width: 900px) {
  .hero,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    text-align: center;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-orb {
    width: 170px;
    height: 170px;
    right: 5%;
    top: 16%;
    opacity: 0.45;
  }
}

@media (max-width: 720px) {
  .navbar {
    padding: 16px 5%;
  }

  .menu-btn {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 68px;
    right: 5%;
    width: 220px;
    display: none;
    flex-direction: column;
    padding: 16px;
    border-radius: 20px;
    background: rgba(5, 8, 22, 0.92);
    border: 1px solid var(--border);
    backdrop-filter: blur(18px);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    margin: 10px 0;
  }

  .section {
    padding: 78px 5%;
  }

  .hero h1 {
    letter-spacing: -2px;
  }

  .contact-box {
    padding: 30px;
  }

  .stats {
    grid-template-columns: 1fr;
  }
}
.btn-icon {
  width: 20px;
  height: 20px;
  object-fit: contain;
  flex-shrink: 0;
}
@media (max-width: 900px) {
  .skills-grid,
  .certificates-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .skill,
  .certificate-card {
    min-height: auto;
  }
}

@media (max-width: 520px) {
  .skills-grid,
  .certificates-grid {
    grid-template-columns: 1fr;
  }

  .section-title h2 {
    font-size: 36px;
  }

  .contact-links {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}