/* =========================
Base + Theme Variables
========================= */
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

:root{
  --primary-color: #111827;
  --secondary-color: #f3f4f6;
  --accent: #ffb347;
  --border: rgba(0,0,0,0.12);
  --glass: rgba(255,255,255,0.65);
  --card-bg: rgba(255,255,255,0.72);
}

.darktheme{
  --primary-color: #e5e7eb;
  --secondary-color: #0b1220;
  --accent: #ffb347;
  --border: rgba(255,255,255,0.18);
  --glass: rgba(255,255,255,0.08);
  --card-bg: rgba(255,255,255,0.06);
}

html, body{
  background: var(--secondary-color);
  color: var(--primary-color);
  overflow-x: hidden;
}

.main-container{
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px;
  padding-top: 120px; /* space for navbar */
}

@media(max-width: 425px){
  .main-container{ padding: 18px; padding-top: 110px; }
}

hr{
  border: none;
  height: 1px;
  background: var(--border);
  margin: 18px 0;
}

section{
  scroll-margin-top: 120px;
}

.section-wrap{
  max-width: 1100px;
  margin: 0 auto;
  padding: 34px 10px;
}

/* Shared surfaces */
.card-surface{
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 18px 45px rgba(0,0,0,0.18);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

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

/* =========================
Navbar (glass + sidebar)
========================= */
.navbar{
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 50;
  background: rgba(0,0,0,0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.darktheme .navbar{
  background: rgba(7, 12, 24, 0.55);
}

.nav-content{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  max-width: 1200px;
  margin: 0 auto;
}

.signature-text{
  font-size: 1.7rem;
  font-weight: 900;
  text-decoration: none;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.nav-center-container{
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-links{
  display: flex;
  gap: 18px;
  align-items: center;
  list-style: none;
  padding: 10px 18px;
  border-radius: 14px;
  background: var(--glass);
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px rgba(0,0,0,0.15);
}

.nav-links a{
  text-decoration: none;
  color: var(--primary-color);
  font-weight: 850;
  font-size: 0.95rem;
  transition: 0.18s ease;
}

.nav-links a:hover{ color: var(--accent); }
.nav-links a.active{
  color: var(--accent);
  text-shadow: 0 0 14px rgba(255,179,71,0.25);
}

.social-icons{
  display: flex;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 14px;
  background: var(--glass);
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px rgba(0,0,0,0.15);
  align-items: center;
}

.social-icons-image{ position: relative; display: inline-block; }
.social-icons-image::after{
  content: attr(data-name);
  position: absolute;
  bottom: -34px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--glass);
  color: var(--primary-color);
  border: 1px solid var(--border);
  padding: 6px 8px;
  border-radius: 10px;
  font-size: 0.72rem;
  opacity: 0;
  visibility: hidden;
  transition: 0.2s ease;
  white-space: nowrap;
}

.social-icons-image:hover::after{
  opacity: 1;
  visibility: visible;
}

.icon{
  font-size: 22px;
  color: var(--primary-color);
  transition: transform 0.18s ease, color 0.18s ease;
}

.icon:hover{ transform: scale(1.1); color: var(--accent); }

.theme-btn{
  background: transparent;
  border: none;
  cursor: pointer;
}

/* Sidebar checkbox */
#sidebar-active{
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.open-sidebar-button,
.close-sidebar-button{
  display: none;
  cursor: pointer;
  color: var(--primary-color);
  font-size: 20px;
}

#overlay{ display: none; }

@media (max-width: 1000px){
  .open-sidebar-button,
  .close-sidebar-button{ display: block; }

  .nav-center-container{ justify-content: flex-start; }

  .nav-links{
    flex-direction: column;
    align-items: flex-start;
    position: fixed;
    top: 0;
    left: -90%;
    width: 78%;
    height: 100svh;
    padding: 30px 20px;
    border-radius: 0 18px 18px 0;
    background: var(--secondary-color);
    transition: 0.35s ease;
    z-index: 60;
    gap: 18px;
  }

  #sidebar-active:checked ~ #overlay{
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 55;
  }

  #sidebar-active:checked ~ .nav-center-container .nav-links{
    left: 0;
  }
}

/* =========================
Home
========================= */
.home{
  text-align: center;
}

.home-title{
  font-size: 2.8rem;
  font-weight: 950;
  letter-spacing: -0.02em;
}

.home-subtitle{
  margin-top: 10px;
  opacity: 0.85;
  line-height: 1.7;
}

@keyframes waving-hand{
  0%{ transform: rotate(0deg); }
  10%{ transform: rotate(14deg); }
  20%{ transform: rotate(-8deg); }
  30%{ transform: rotate(14deg); }
  40%{ transform: rotate(-4deg); }
  50%{ transform: rotate(10deg); }
  60%{ transform: rotate(0deg); }
  100%{ transform: rotate(0deg); }
}
.emoji{
  animation: waving-hand 2.5s infinite;
  transform-origin: 70% 70%;
  display: inline-block;
}

.image-container{
  margin: 22px auto 0 auto;
  padding: 8px;
  border-radius: 22px;
  width: fit-content;
  background: var(--glass);
  border: 1px solid var(--border);
  box-shadow: 0 12px 24px rgba(0,0,0,0.12);
  transition: transform 0.2s ease;
}
.image-container:hover{ transform: scale(1.02); }

.personal-pic{
  width: 100%;
  max-width: 380px;
  border-radius: 18px;
  object-fit: cover;
  display: block;
}

.btn-container{
  display: flex;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn{
  padding: 10px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 900;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover{
  transform: translateY(-2px);
  background: var(--accent);
  color: #0b1220;
}

.updates-box{
  margin: 22px auto 0 auto;
  max-width: 760px;
  padding: 16px 18px;
  text-align: left;
}
.updates-box h3{
  color: var(--accent);
  margin-bottom: 10px;
  font-weight: 950;
}
.updates-box ul{
  list-style: none;
  display: grid;
  gap: 8px;
  opacity: 0.9;
}

/* =========================
Section Titles
========================= */
.section-title{
  text-align: center;
  font-size: 2.3rem;
  font-weight: 950;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.section-subtitle{
  text-align: center;
  max-width: 740px;
  margin: 0 auto 22px auto;
  opacity: 0.8;
  line-height: 1.7;
}

/* =========================
Skills
========================= */
.skills-grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 18px;
}
@media (max-width: 900px){
  .skills-grid{ grid-template-columns: 1fr; }
}

.skill-box{ padding: 16px; }
.skill-box h3{
  color: var(--accent);
  font-weight: 950;
  margin-bottom: 12px;
}

.chip-row{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--glass);
  font-weight: 900;
  font-size: 0.9rem;
}

/* =========================
Experience
========================= */
.exp-title{
  text-align: center;
  font-size: 3rem;
  font-weight: 950;
  margin-bottom: 26px;
}
.exp-emoji{ margin-left: 10px; }

.exp-timeline{
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: 10px 0 30px 0;
}

.exp-line{
  position: absolute;
  left: 50%;
  top: 110px;
  bottom: 20px;
  width: 4px;
  border-radius: 999px;
  background: rgba(0,0,0,0.35);
  transform: translateX(-50%);
}
.darktheme .exp-line{
  background: rgba(255,255,255,0.35);
}

.exp-item{
  position: relative;
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
}

.exp-date{ display: flex; justify-content: flex-end; }

.exp-date-pill{
  width: min(420px, 100%);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px 22px;
  font-weight: 950;
  font-size: 1.2rem;
  box-shadow: 0 10px 22px rgba(0,0,0,0.12);
  text-align: left;
}

.exp-dot{
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: #111;
  justify-self: center;
  z-index: 2;
}
.darktheme .exp-dot{ background: #e5e7eb; }

.exp-card{
  width: min(540px, 100%);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px 24px;
  box-shadow: 0 12px 26px rgba(0,0,0,0.14);
}

.exp-role{
  font-size: 1.45rem;
  font-weight: 950;
  margin-bottom: 8px;
}

.exp-org{
  font-size: 1.05rem;
  font-weight: 850;
  opacity: 0.65;
  margin-bottom: 14px;
}

.exp-details-btn{
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  background: transparent;
  color: var(--accent);
  font-weight: 950;
  cursor: pointer;
  font-size: 1rem;
  padding: 6px 0;
}
.exp-details-btn:hover{ text-decoration: underline; }

.exp-details{
  margin-top: 12px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.exp-details ul{
  list-style: none;
  display: grid;
  gap: 10px;
}

.exp-details li{
  position: relative;
  padding-left: 18px;
  line-height: 1.6;
  opacity: 0.9;
}

.exp-details li::before{
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 950;
}

/* Experience responsive */
@media (max-width: 900px){
  .exp-title{ font-size: 2.2rem; }

  .exp-line{
    left: 18px;
    transform: none;
    top: 90px;
  }

  .exp-item{
    grid-template-columns: 40px 1fr;
    gap: 14px;
    padding: 18px 0;
  }

  .exp-date{
    grid-column: 2;
    justify-content: flex-start;
    order: 1;
  }

  .exp-dot{
    grid-column: 1;
    order: 0;
  }

  .exp-card{
    grid-column: 2;
    order: 2;
  }
}

/* =========================
Projects
========================= */
.projects-title{
  text-align: center;
  font-size: 3rem;
  font-weight: 950;
  margin-bottom: 18px;
}
.projects-emoji{ margin-left: 10px; }

.filter-buttons{
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin: 18px 0 28px 0;
}

.filter-btn{
  padding: 12px 22px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--primary-color);
  font-weight: 950;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(0,0,0,0.10);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.filter-btn:hover{ transform: translateY(-2px); }

.filter-btn.active{
  background: var(--accent);
  color: #0b1220;
  border-color: transparent;
}

.projects-grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 22px;
  align-items: start;
}

@media (max-width: 980px){
  .projects-grid{ grid-template-columns: 1fr; }
}

.project-card2{
  padding: 22px;
  border-radius: 20px;
  transition: transform 0.18s ease;
}

.project-card2:hover{ transform: translateY(-4px); }

.project-title2{
  font-size: 1.8rem;
  font-weight: 980;
  text-align: center;
  margin-bottom: 16px;
}

.tech-badges{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 14px;
}

.tech-pill{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--glass);
  box-shadow: 0 8px 18px rgba(0,0,0,0.12);
  font-weight: 950;
  font-size: 0.95rem;
}

.card-divider{
  height: 2px;
  width: 86%;
  margin: 18px auto;
  background: var(--border);
  border-radius: 999px;
}

.project-image{
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--glass);
  width: 100%;
  aspect-ratio: 16/9;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  position: relative;
}

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

.project-image.img-fallback{
  background: rgba(255,255,255,0.04);
}

.img-fallback-text{
  position: absolute;
  font-weight: 950;
  opacity: 0.55;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.85rem;
}

.project-desc2{
  font-size: 1rem;
  line-height: 1.75;
  opacity: 0.9;
  text-align: left;
}

/* =========================
Education
========================= */
.edu-item{
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px;
}

.edu-badge{
  width: 70px;
  height: 70px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-weight: 950;
  border: 2px solid var(--accent);
  background: var(--glass);
}

.edu-school{
  font-weight: 950;
  font-size: 1.05rem;
}
.edu-degree{
  opacity: 0.8;
  margin-top: 4px;
}
.edu-year{
  opacity: 0.9;
  font-weight: 950;
  white-space: nowrap;
}
@media(max-width: 700px){
  .edu-item{ grid-template-columns: 70px 1fr; }
  .edu-year{ grid-column: 2; }
}
.spacer-14{ height: 14px; }

/* =========================
Contact
========================= */
.grid-2{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media(max-width: 900px){
  .grid-2{ grid-template-columns: 1fr; }
}

.contact-card{ padding: 18px; }

.card-heading{
  font-weight: 950;
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.contact-row{
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 12px 0;
}

.contact-row i{
  color: var(--accent);
  margin-top: 4px;
}

.muted-label{
  opacity: 0.75;
  font-weight: 900;
}

.muted{ opacity: 0.8; }

.contact-icons{
  display: flex;
  gap: 18px;
  margin-top: 16px;
}

.contact-icons a{
  color: var(--primary-color);
  font-size: 26px;
  text-decoration: none;
  transition: transform 0.15s ease, color 0.15s ease;
}

.contact-icons a:hover{
  transform: translateY(-2px);
  color: var(--accent);
}

.contact-form{
  display: grid;
  gap: 10px;
}

.contact-form input,
.contact-form textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--primary-color);
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus{
  border-color: var(--accent);
}

.btn-solid{
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  font-weight: 950;
  border: none;
  cursor: pointer;
  background: var(--accent);
  color: #0b1220;
  transition: transform 0.15s ease;
}

.btn-solid:hover{ transform: translateY(-2px); }

.form-status{
  min-height: 18px;
  font-size: 0.9rem;
}

.form-status.pending{ opacity: 0.8; }
.form-status.ok{ color: #22c55e; }
.form-status.err{ color: #ef4444; }

/* Footer */
.footer{
  text-align: center;
  padding: 12px 6px;
  opacity: 0.9;
}