/* style.css - modern dark portfolio */
:root {
  --bg-body: #020617;
  --bg-alt: rgba(15, 23, 42, 0.85);
  --bg-nav: rgba(2, 6, 23, 0.9);
  --bg-card: rgba(15, 23, 42, 0.8);
  --text-main: #e5e7eb;
  --text-muted: #94a3b8;
  /* Professional teal / cyan accent palette */
  --accent: #14b8a6; /* teal-500 */
  --accent-strong: #06b6d4; /* cyan-500 */
  --accent-soft: rgba(20, 184, 166, 0.16);
  --border-soft: rgba(148, 163, 184, 0.3);
  --shadow-soft: 0 24px 80px rgba(15, 23, 42, 0.9);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 999px;
  --transition-fast: 0.2s ease;
  --transition-med: 0.35s ease;
  --container-width: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 0% 0%, #0b1120 0, #020617 55%, #020617 100%);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  scroll-margin-top: 6rem;
}

/* Scroll progress */
.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  background: transparent;
  z-index: 1400;
}

.scroll-progress__bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  box-shadow: 0 0 18px rgba(56, 189, 248, 0.8);
  transform-origin: left;
  transition: width 0.1s linear;
}

/* Custom cursor */
.cursor {
  position: fixed;
  inset: auto;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1500;
  transform: translate(-50%, -50%);
}

.cursor--dot {
  background: var(--accent);
}

.cursor--outline {
  width: 32px;
  height: 32px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: radial-gradient(circle, rgba(56, 189, 248, 0.18), transparent 60%);
  transition: transform 0.18s ease, opacity 0.18s ease;
}

/* Particles */
.particles {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
  background-image: radial-gradient(circle at 12% 10%, rgba(37, 99, 235, 0.22) 0, transparent 55%),
    radial-gradient(circle at 85% 0%, rgba(56, 189, 248, 0.18) 0, transparent 55%);
  opacity: 0.65;
}

/* Navbar */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: 72px;
  background: linear-gradient(to bottom, var(--bg-nav), rgba(15, 23, 42, 0));
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.28);
  z-index: 1200;
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  color: #f9fafb;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
  text-transform: uppercase;
  text-decoration: none;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  color: #cbd5f5;
  font-size: 0.9rem;
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transition: width var(--transition-fast);
}

.nav__link:hover {
  color: #f9fafb;
}

.nav__link:hover::after,
.nav__link.active-link::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.65);
  background: rgba(15, 23, 42, 0.9);
  cursor: pointer;
  padding: 0;
}

.nav__toggle span {
  height: 2px;
  width: 18px;
  border-radius: 999px;
  background: #e5e7eb;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Hero */
.hero {
  padding: 8.2rem 0 4.5rem;
}

.hero__content {
  display: grid;
  grid-template-columns: minmax(0, 2.3fr) minmax(0, 1.7fr);
  align-items: center;
  gap: 3.75rem;
}

.hero__greeting {
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.7rem;
}

.hero__name {
  font-family: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(2.6rem, 4.4vw, 3.2rem);
  letter-spacing: -0.05em;
  margin: 0 0 0.5rem;
}

.hero__title {
  font-size: 1.05rem;
  color: var(--accent);
  margin: 0 0 1.2rem;
  min-height: 1.3rem;
}

.hero__typing {
  border-right: 2px solid var(--accent);
  padding-right: 4px;
  white-space: nowrap;
}

.hero__description {
  color: var(--text-muted);
  max-width: 36rem;
  margin-bottom: 1.9rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 1.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast),
    border-color var(--transition-fast), transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn-primary {
  background: radial-gradient(circle at 0 0, rgba(248, 250, 252, 0.18), transparent 60%),
    linear-gradient(135deg, var(--accent-strong), var(--accent));
  color: #f9fafb;
  box-shadow: 0 18px 44px rgba(37, 99, 235, 0.55);
}

.btn-primary:hover {
  transform: translateY(-1px) scale(1.01);
  box-shadow: 0 24px 60px rgba(59, 130, 246, 0.8);
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.7);
  border-color: rgba(148, 163, 184, 0.7);
  color: var(--text-main);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(15, 23, 42, 0.9);
}

.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0 0, rgba(248, 250, 252, 0.3), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-med);
}

.btn-glow:hover::before {
  opacity: 1;
}

.hero__socials {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-link {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.9);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.social-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(37, 99, 235, 0.9);
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #f9fafb;
}

.hero__visual {
  position: relative;
  min-height: 260px;
}

.hero__orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(26px);
  opacity: 0.8;
}

.hero__orb--primary {
  inset: 0 40% 40% 0;
  background: radial-gradient(circle at 0 0, rgba(37, 99, 235, 0.55), transparent 60%);
} 

.hero__orb--secondary {
  inset: 40% 0 0 40%;
  background: radial-gradient(circle at 100% 100%, rgba(30, 64, 175, 0.5), transparent 60%);
}

.hero__photo-wrapper {
  position: relative;
  margin-left: auto;
  margin-right: 1.4rem;
  margin-top: 0.8rem;
  margin-bottom: 1rem;
  width: 330px;
  height: 330px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.hero__photo {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(148, 163, 184, 0.9);
  box-shadow: 0 22px 55px rgba(15, 23, 42, 0.95);
}

.hero__card {
  position: relative;
  margin-left: auto;
  margin-right: 1.4rem;
  max-width: 260px;
}

.hero__card-title {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: #e5e7eb;
}

.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chip {
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  font-size: 0.75rem;
  color: #e5e7eb;
  background: rgba(15, 23, 42, 0.9);
}

.hero__icons {
  position: absolute;
  inset: auto 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transform: translateY(10px);
}

.hero__icon {
  font-size: 0.7rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.6);
  color: var(--text-main);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.9);
  animation: float 4s ease-in-out infinite;
}

.hero__icon--css {
  animation-delay: 0.6s;
}

.hero__icon--js {
  animation-delay: 1.2s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(4px);
  }
  50% {
    transform: translateY(-6px);
  }
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section--alt {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.18), transparent 55%);
}

.section__title {
  font-size: 1.7rem;
  margin: 0 0 0.5rem;
  letter-spacing: -0.03em;
}

.section__description {
  max-width: 48rem;
  color: var(--text-muted);
}

.glass-card {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.7));
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(22px);
}

.about__card {
  padding: 1.8rem 1.7rem;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Skills */
.skills {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
  margin-top: 1.8rem;
}

.skills__group {
  padding: 1.5rem 1.6rem;
}

.skills__title {
  margin: 0 0 0.8rem;
  font-size: 1rem;
}

.skills__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skills__bars {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.skill__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.skill__percent {
  color: var(--accent);
}

.skill__bar {
  position: relative;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  overflow: hidden;
}

.skill__bar span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  box-shadow: 0 0 18px rgba(56, 189, 248, 0.9);
  transition: width 1.2s ease;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: #e0f2fe;
  font-size: 0.8rem;
  font-weight: 500;
}

.tag--small {
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
}

/* Projects */
.projects {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.7rem;
  margin-top: 2.1rem;
}

.project-card {
  position: relative;
  overflow: hidden;
  transform: translateY(0);
  transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med),
    background var(--transition-med);
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(59, 130, 246, 0.25), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-med);
}

.project-card__content {
  position: relative;
  padding: 1.6rem 1.7rem 1.5rem;
}

.project-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.project-card__description {
  margin: 0 0 1.05rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.project-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.98);
  border-color: rgba(56, 189, 248, 0.7);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.6));
}

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

/* Timeline (Experience & Education) */
.timeline {
  position: relative;
  margin-top: 1.8rem;
}

.timeline__line {
  position: absolute;
  top: 0.4rem;
  bottom: 0.4rem;
  left: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  opacity: 0.5;
}

.timeline-card {
  position: relative;
  margin-left: 2.5rem;
  padding: 1.7rem 1.7rem 1.5rem;
}

.timeline-card__dot {
  position: absolute;
  top: 1.6rem;
  left: -1.6rem;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.9);
}

.timeline-card__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.3rem;
}

.timeline-card__company {
  margin: 0;
  font-size: 1.05rem;
}

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

.timeline-card__role {
  margin: 0 0 0.75rem;
  font-weight: 500;
}

.timeline-card__list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.education {
  display: grid;
  gap: 1.4rem;
}

.education__item {
  position: relative;
  margin-left: 2.5rem;
  padding: 1.4rem 1.5rem;
}

.education__institution {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.education__degree {
  margin: 0 0 0.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

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

/* Achievements */
.achievements {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
  margin-top: 1.7rem;
}

.achievement-card {
  padding: 1.5rem 1.6rem;
}

.achievement-card__title {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.achievement-card__description {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Extra spacing before Education section */
#education {
  margin-top: 3.5rem;
}

/* Contact */
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  gap: 2.1rem;
  margin-top: 1.8rem;
}

.contact__info p {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

.contact__info a {
  color: var(--accent);
  text-decoration: none;
}

.contact__info a:hover {
  text-decoration: underline;
}

.contact__icons {
  margin-top: 0.75rem;
  display: flex;
  gap: 0.6rem;
}

.contact__form {
  padding: 1.7rem 1.6rem 1.6rem;
}

.form__group {
  margin-bottom: 1rem;
}

.form__group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.form__group input,
.form__group textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border-radius: 9px;
  border: 1px solid rgba(30, 64, 175, 0.7);
  font-size: 0.9rem;
  font-family: inherit;
  background: rgba(15, 23, 42, 0.9);
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

.form__group input:focus,
.form__group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.5);
  background-color: rgba(15, 23, 42, 0.95);
}

.form__status {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Back to top */
.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.75rem;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.8);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity var(--transition-med), transform var(--transition-med), background var(--transition-fast);
  z-index: 1100;
}

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

.back-to-top:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

/* Footer */
.footer {
  border-top: 1px solid rgba(30, 64, 175, 0.8);
  padding: 1.5rem 0 1.7rem;
  background: rgba(3, 7, 18, 0.98);
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  gap: 1.2rem;
}

.footer__links a {
  color: var(--text-muted);
  text-decoration: none;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .skills {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

@media (max-width: 900px) {
  .hero__content {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.8rem;
  }

  .hero__visual {
    order: -1;
  }

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

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

  .nav__menu {
    position: absolute;
    top: 72px;
    right: 0;
    left: 0;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.9rem 1.5rem 1.1rem;
    background: rgba(15, 23, 42, 0.98);
    border-bottom: 1px solid rgba(148, 163, 184, 0.4);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-med), opacity var(--transition-med);
  }

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

  .nav__link {
    padding: 0.35rem 0;
  }

  .hero {
    padding-top: 8rem;
  }

  .section {
    padding: 3.2rem 0;
  }

  .footer__content {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact__form {
    padding: 1.4rem;
  }

  .timeline-card {
    padding: 1.5rem;
  }

  .back-to-top {
    right: 1.1rem;
    bottom: 1.3rem;
  }
}