/* ===== VARIABLES ===== */
:root {
  --bg:#0a0a0a; --bg2:#111; --card:#161616;
  --accent:#ff7b00; --accent2:#ff9d3f;
  --text:#fff; --text2:#b3b3b3;
  --border:rgba(255,123,0,.15);
  --hf:'Poppins',sans-serif; --bf:'Inter',sans-serif;
  --tr:.3s cubic-bezier(.4,0,.2,1);
  --glow:0 0 20px rgba(255,123,0,.3);
  --glowS:0 0 10px rgba(255,123,0,.2);
  --r:16px; --rs:10px;
}

/* ===== RESET ===== */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:80px; }
body {
  font-family:var(--bf); background:var(--bg); color:var(--text);
  line-height:1.7; overflow-x:hidden; -webkit-font-smoothing:antialiased;
  min-width:0;
}
a { text-decoration:none; color:inherit; }
ul { list-style:none; }
img { max-width:100%; display:block; height:auto; }

/* ===== LAYOUT ===== */
.container {
  max-width:1140px; margin:0 auto;
  padding:0 16px; width:100%;
}
.highlight { color:var(--accent); }
.section { padding:60px 0; position:relative; overflow:hidden; }
.section__header { text-align:center; margin-bottom:40px; }
.section__subtitle {
  font-size:.8rem; color:var(--accent); text-transform:uppercase;
  letter-spacing:2px; margin-bottom:10px; font-weight:500;
  display:flex; align-items:center; justify-content:center; gap:6px;
}
.section__title {
  font-family:var(--hf); font-size:clamp(1.5rem,5vw,2.8rem);
  font-weight:700; line-height:1.2; word-break:break-word;
}

/* ===== BACKGROUND ANIMATION ===== */
.bg-animation {
  position:fixed; top:0; left:0; width:100%; height:100%;
  z-index:-1; overflow:hidden; pointer-events:none;
}
.bg-animation::before, .bg-animation::after {
  content:''; position:absolute; border-radius:50%;
  filter:blur(120px); opacity:.12; animation:fb 20s ease-in-out infinite;
}
.bg-animation::before {
  width:300px; height:300px; background:var(--accent); top:-100px; right:-80px;
}
.bg-animation::after {
  width:250px; height:250px; background:var(--accent2);
  bottom:-80px; left:-80px; animation-delay:-10s; animation-duration:25s;
}
@keyframes fb {
  0%,100% { transform:translate(0,0) scale(1); }
  25% { transform:translate(40px,30px) scale(1.1); }
  50% { transform:translate(-20px,60px) scale(.95); }
  75% { transform:translate(30px,-20px) scale(1.05); }
}

/* ===== HEADER ===== */
.header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background:rgba(10,10,10,.85); backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border); transition:var(--tr);
}
.header.scrolled { background:rgba(10,10,10,.95); box-shadow:0 4px 30px rgba(0,0,0,.5); }
.nav {
  display:flex; align-items:center; justify-content:space-between;
  height:64px; gap:8px;
}
.nav__logo {
  display:flex; align-items:center; gap:6px;
  font-family:var(--hf); font-size:1.2rem; font-weight:700;
  color:var(--text); transition:var(--tr); flex-shrink:0; white-space:nowrap;
}
.nav__logo i { color:var(--accent); font-size:1rem; }
.nav__logo:hover { color:var(--accent); }
.nav__list { display:flex; align-items:center; gap:24px; }
.nav__link {
  font-size:.85rem; font-weight:500; color:var(--text2);
  transition:var(--tr); position:relative; padding:4px 0; white-space:nowrap;
}
.nav__link::after {
  content:''; position:absolute; bottom:-2px; left:0;
  width:0; height:2px; background:var(--accent);
  transition:width .3s ease; border-radius:2px;
}
.nav__link:hover, .nav__link.active { color:var(--accent); }
.nav__link:hover::after, .nav__link.active::after { width:100%; }
.nav__actions { display:flex; align-items:center; gap:12px; flex-shrink:0; }
.nav__item-mobile { display:none; }
.nav__toggle {
  display:none; background:none; border:none; cursor:pointer; padding:8px;
}
.hamburger, .hamburger::before, .hamburger::after {
  display:block; width:22px; height:2px; background:var(--text);
  border-radius:2px; transition:var(--tr); position:relative;
}
.hamburger::before, .hamburger::after { content:''; position:absolute; left:0; }
.hamburger::before { top:-6px; }
.hamburger::after { top:6px; }
.nav__toggle.active .hamburger { background:transparent; }
.nav__toggle.active .hamburger::before { top:0; transform:rotate(45deg); background:var(--accent); }
.nav__toggle.active .hamburger::after { top:0; transform:rotate(-45deg); background:var(--accent); }

/* ===== BUTTONS ===== */
.btn {
  display:inline-flex; align-items:center; gap:6px;
  padding:12px 20px; border-radius:var(--rs);
  font-family:var(--bf); font-size:.85rem; font-weight:600;
  cursor:pointer; transition:var(--tr); border:none; white-space:nowrap;
}
.btn--primary {
  background:var(--accent); color:#000;
  box-shadow:0 0 20px rgba(255,123,0,.25);
}
.btn--primary:hover { background:var(--accent2); transform:translateY(-2px); box-shadow:0 0 30px rgba(255,123,0,.4); }
.btn--outline { background:transparent; color:var(--accent); border:1px solid var(--accent); }
.btn--outline:hover { background:rgba(255,123,0,.1); transform:translateY(-2px); box-shadow:var(--glowS); }
.btn--sm { padding:8px 16px; font-size:.8rem; }

/* ===== SOCIAL ICONS ===== */
.social-icon {
  width:40px; height:40px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  border:1px solid var(--border); color:var(--text2);
  font-size:1rem; transition:var(--tr); flex-shrink:0;
}
.social-icon:hover { color:var(--accent); border-color:var(--accent); box-shadow:var(--glowS); transform:translateY(-3px); }

/* ===== HERO ===== */
.hero { min-height:100vh; display:flex; align-items:center; padding-top:64px; }
.hero__container {
  display:flex; flex-direction:column; gap:40px;
  align-items:center; width:100%; text-align:center;
}
.hero__content { order:2; max-width:100%; min-width:0; }
.hero__visual { order:1; }
.hero__greeting {
  font-size:.85rem; color:var(--accent); font-weight:500;
  letter-spacing:2px; text-transform:uppercase; margin-bottom:6px;
}
.hero__name {
  font-family:var(--hf); font-size:clamp(2rem,8vw,4.5rem);
  font-weight:800; line-height:1.1; margin-bottom:12px;
  word-break:break-word; overflow-wrap:break-word;
}
.hero__typing {
  font-size:clamp(.9rem,3vw,1.3rem); color:var(--text2);
  margin-bottom:20px; min-height:1.8em;
}
.typing-prefix { color:var(--text2); }
.typing-text { color:var(--accent); font-weight:600; }
.typing-cursor { color:var(--accent); animation:blink .8s infinite; font-weight:300; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
.hero__description {
  font-size:.95rem; color:var(--text2); max-width:540px;
  line-height:1.8; margin:0 auto 24px; padding:0 4px;
}
.hero__buttons {
  display:flex; flex-wrap:wrap; gap:12px;
  margin-bottom:24px; justify-content:center;
}
.hero__socials { display:flex; gap:10px; justify-content:center; }

/* Avatar */
.hero__avatar-ring {
  width:180px; height:180px; border-radius:50%; position:relative;
  border:2px solid rgba(255,123,0,0.4);
  display:flex; align-items:center; justify-content:center;
  animation:pr 3s ease-in-out infinite; flex-shrink:0;
}
.hero__avatar-glow {
  position:absolute; width:100%; height:100%; border-radius:50%;
  background:radial-gradient(circle,rgba(255,123,0,.1) 0%,transparent 70%);
  animation:pg 3s ease-in-out infinite;
}
.hero__avatar-inner {
  width:140px; height:140px; border-radius:50%;
  background:var(--card); border:4px solid var(--accent);
  overflow:hidden; z-index:1;
}
.hero__avatar-img { width:100%; height:100%; object-fit:cover; }
@keyframes pr { 0%,100%{transform:scale(1);border-color:rgba(255,123,0,0.4);box-shadow:0 0 10px rgba(255,123,0,0.1)} 50%{transform:scale(1.05);border-color:var(--accent);box-shadow:0 0 30px rgba(255,123,0,0.5)} }
@keyframes pg { 0%,100%{opacity:.5} 50%{opacity:1} }

/* Scroll indicator */
.hero__scroll-indicator { position:absolute; bottom:20px; left:50%; transform:translateX(-50%); }
.scroll-line {
  width:2px; height:30px;
  background:linear-gradient(to bottom,var(--accent),transparent);
  animation:sm 2s ease-in-out infinite;
}
@keyframes sm {
  0%{opacity:0;transform:scaleY(0);transform-origin:top}
  50%{opacity:1;transform:scaleY(1)}
  100%{opacity:0;transform:scaleY(0);transform-origin:bottom}
}

/* ===== ABOUT ===== */
.about__content { display:flex; flex-direction:column; gap:32px; }
.about__text p { color:var(--text2); margin-bottom:16px; font-size:.92rem; line-height:1.8; }
.about__stats { display:grid; grid-template-columns:repeat(2,1fr); gap:12px; }
.stat-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:20px 12px; text-align:center; transition:var(--tr);
}
.stat-card:hover { transform:translateY(-4px); border-color:rgba(255,123,0,.4); box-shadow:var(--glowS); }
.stat-card__icon { font-size:1.3rem; color:var(--accent); margin-bottom:8px; }
.stat-card__number { font-family:var(--hf); font-size:1.6rem; font-weight:700; }
.stat-card__label { font-size:.78rem; color:var(--text2); margin-top:2px; }

/* ===== SKILLS ===== */
.skills__grid { display:grid; grid-template-columns:1fr; gap:16px; }
.skill-category {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:20px; transition:var(--tr);
}
.skill-category:hover { border-color:rgba(255,123,0,.35); box-shadow:var(--glowS); }
.skill-category__title {
  font-family:var(--hf); font-size:1rem; font-weight:600;
  margin-bottom:14px; display:flex; align-items:center; gap:8px;
}
.skill-category__title i { color:var(--accent); }
.skill-category__items { display:flex; flex-wrap:wrap; gap:8px; }
.skill-chip {
  display:inline-flex; align-items:center; gap:5px;
  padding:6px 12px; border-radius:30px;
  background:rgba(255,123,0,.08); border:1px solid var(--border);
  font-size:.8rem; font-weight:500; color:var(--text2); transition:var(--tr);
}
.skill-chip i { color:var(--accent); font-size:.75rem; }
.skill-chip:hover { background:rgba(255,123,0,.15); color:var(--text); border-color:rgba(255,123,0,.4); transform:translateY(-2px); }

/* ===== PROJECTS ===== */
.projects__grid { display:grid; grid-template-columns:1fr; gap:16px; }
.project-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:24px; transition:var(--tr);
}
.project-card:hover { transform:translateY(-4px); border-color:rgba(255,123,0,.4); box-shadow:var(--glow); }
.project-card__header { display:flex; justify-content:space-between; align-items:center; margin-bottom:16px; }
.project-card__icon { font-size:1.8rem; color:var(--accent); }
.project-card__link {
  width:36px; height:36px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  border:1px solid var(--border); color:var(--text2); font-size:1rem; transition:var(--tr);
}
.project-card__link:hover { color:var(--accent); border-color:var(--accent); }
.project-card__title { font-family:var(--hf); font-size:1.05rem; font-weight:600; margin-bottom:10px; word-break:break-word; }
.project-card__tech { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:12px; }
.tech-tag {
  font-size:.7rem; padding:3px 10px; border-radius:20px;
  background:rgba(255,123,0,.1); color:var(--accent); font-weight:500;
  border:1px solid rgba(255,123,0,.15);
}
.project-card__description { color:var(--text2); font-size:.88rem; margin-bottom:14px; line-height:1.7; }
.project-card__features { display:flex; flex-direction:column; gap:6px; }
.project-card__features li { display:flex; align-items:center; gap:6px; font-size:.84rem; color:var(--text2); }
.project-card__features i { color:var(--accent); font-size:.7rem; flex-shrink:0; }

/* ===== TIMELINE ===== */
.timeline { position:relative; padding-left:32px; max-width:700px; margin:0 auto; }
.timeline::before {
  content:''; position:absolute; left:7px; top:0; bottom:0;
  width:2px; background:linear-gradient(to bottom,var(--accent),var(--border),transparent);
}
.timeline__item { position:relative; margin-bottom:32px; }
.timeline__item:last-child { margin-bottom:0; }
.timeline__dot {
  position:absolute; left:-32px; top:6px;
  width:16px; height:16px; border-radius:50%;
  background:var(--bg); border:2px solid var(--accent);
  box-shadow:var(--glowS); z-index:1;
}
.timeline__dot::after {
  content:''; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:6px; height:6px; border-radius:50%; background:var(--accent);
}
.timeline__content {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:20px; transition:var(--tr);
}
.timeline__content:hover { border-color:rgba(255,123,0,.35); box-shadow:var(--glowS); }
.timeline__date { font-size:.75rem; color:var(--accent); font-weight:600; text-transform:uppercase; letter-spacing:1px; }
.timeline__title { font-family:var(--hf); font-size:1rem; font-weight:600; margin:6px 0; word-break:break-word; }
.timeline__institution { font-size:.82rem; color:var(--text2); display:flex; align-items:flex-start; gap:5px; }
.timeline__institution i { color:var(--accent); font-size:.75rem; margin-top:3px; flex-shrink:0; }
.timeline__detail { font-size:.85rem; color:var(--text2); margin-top:6px; }

/* ===== CERTIFICATIONS ===== */
.certifications__grid { display:grid; grid-template-columns:1fr; gap:12px; }
.cert-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:24px; text-align:center; transition:var(--tr);
}
.cert-card:hover { transform:translateY(-4px); border-color:rgba(255,123,0,.4); box-shadow:var(--glowS); }
.cert-card__icon { font-size:1.8rem; color:var(--accent); margin-bottom:12px; }
.cert-card__title { font-family:var(--hf); font-size:.95rem; font-weight:600; margin-bottom:8px; word-break:break-word; }
.cert-card__description { font-size:.82rem; color:var(--text2); line-height:1.7; }

/* ===== EXPERIENCE ===== */
.experience-card {
  display:flex; flex-direction:column; gap:20px; align-items:center;
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:28px 20px; text-align:center;
  max-width:700px; margin:0 auto; transition:var(--tr);
}
.experience-card:hover { border-color:rgba(255,123,0,.4); box-shadow:var(--glowS); }
.experience-card__icon-wrap {
  width:60px; height:60px; border-radius:50%;
  background:rgba(255,123,0,.1); border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
  font-size:1.5rem; color:var(--accent); flex-shrink:0;
}
.experience-card__title { font-family:var(--hf); font-size:1.15rem; font-weight:700; }
.experience-card__org { color:var(--accent); font-weight:500; margin-bottom:6px; font-size:.9rem; }
.experience-card__description { color:var(--text2); line-height:1.8; font-size:.9rem; }
.experience-card__tags { display:flex; flex-wrap:wrap; gap:6px; justify-content:center; margin-top:6px; }

/* ===== CONTACT ===== */
.contact__intro {
  text-align:center; color:var(--text2); max-width:500px;
  margin:-20px auto 32px; font-size:.92rem; line-height:1.8;
}
.contact__grid { display:grid; grid-template-columns:1fr; gap:12px; max-width:700px; margin:0 auto; }
.contact-card {
  display:flex; align-items:center; gap:14px;
  background:var(--card); border:1px solid var(--border);
  border-radius:var(--r); padding:18px 16px; transition:var(--tr);
  text-decoration:none; min-width:0;
}
.contact-card:hover { transform:translateY(-3px); border-color:rgba(255,123,0,.4); box-shadow:var(--glowS); }
.contact-card__icon {
  width:44px; height:44px; border-radius:50%; flex-shrink:0;
  background:rgba(255,123,0,.1); border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
  font-size:1rem; color:var(--accent); transition:var(--tr);
}
.contact-card:hover .contact-card__icon { box-shadow:var(--glowS); border-color:var(--accent); }
.contact-card__title { font-family:var(--hf); font-size:.88rem; font-weight:600; margin-bottom:1px; }
.contact-card__value {
  font-size:.78rem; color:var(--text2);
  overflow:hidden; text-overflow:ellipsis; word-break:break-all;
}

/* ===== FOOTER ===== */
.footer {
  border-top:1px solid var(--border); padding:32px 0;
  background:rgba(10,10,10,.6); backdrop-filter:blur(10px);
}
.footer__content { display:flex; flex-direction:column; align-items:center; gap:16px; text-align:center; }
.footer__logo {
  display:flex; align-items:center; gap:6px;
  font-family:var(--hf); font-size:1.1rem; font-weight:700;
}
.footer__logo i { color:var(--accent); font-size: 1.8rem; }
.footer__copy { font-size:.8rem; color:var(--text2); }
.footer__socials { display:flex; gap:10px; }

/* ===== REVEAL ===== */
.reveal-up { opacity:0; transform:translateY(30px); transition:opacity .7s ease,transform .7s ease; }
.reveal-up.revealed { opacity:1; transform:translateY(0); }

/* ===== MOBILE NAV (always for <768) ===== */
@media (max-width:767px) {
  .nav__toggle { display:block; }
  .nav__resume-btn { display:none; }
  .nav__menu {
    position:fixed; top:64px; left:0; width:100%; height:calc(100vh - 64px);
    background:rgba(10,10,10,.97); backdrop-filter:blur(20px);
    display:flex; align-items:center; justify-content:center;
    transform:translateX(100%); transition:transform .4s cubic-bezier(.4,0,.2,1);
    z-index:999;
  }
  .nav__menu.show { transform:translateX(0); }
  .nav__list { flex-direction:column; gap:24px; text-align:center; }
  .nav__link { font-size:1.1rem; }
  .nav__item-mobile { display:block; margin-top:10px; }
  .nav__link-resume { color:var(--accent); border:1px solid var(--accent); padding:10px 28px; border-radius:30px; display:inline-block; }
  .nav__link-resume::after { display:none; }
}

/* ===== 768px+ ===== */
@media (min-width:768px) {
  .container { padding:0 32px; }
  .section { padding:80px 0; }
  .hero__container {
    flex-direction:row; text-align:left; justify-content:space-between; gap:20px;
  }
  .hero__content { flex:1; max-width:600px; }
  .hero__visual { flex:1; display:flex; justify-content:flex-end; }
  .hero__content { order:1; }
  .hero__visual { order:2; }
  .hero__description { margin:0 0 28px; }
  .hero__buttons { justify-content:flex-start; }
  .hero__socials { justify-content:flex-start; }
  .hero__avatar-ring { width:260px; height:260px; }
  .hero__avatar-inner { width:190px; height:190px; }
  .about__content { flex-direction:row; gap:40px; }
  .about__text { flex:1.2; }
  .about__stats { flex:1; }
  .skills__grid { grid-template-columns:repeat(2,1fr); }
  .projects__grid { grid-template-columns:repeat(2,1fr); }
  .certifications__grid { grid-template-columns:repeat(2,1fr); }
  .contact__grid { grid-template-columns:repeat(2,1fr); }
  .experience-card { flex-direction:row; text-align:left; }
  .experience-card__tags { justify-content:flex-start; }
}

/* ===== 992px+ ===== */
@media (min-width:992px) {
  .section { padding:100px 0; }
  .projects__grid { grid-template-columns:repeat(3,1fr); }
  .certifications__grid { grid-template-columns:repeat(4,1fr); }
  .hero__visual { justify-content: flex-end; padding-right: 40px; }
  .hero__avatar-ring { width:320px; height:320px; }
  .hero__avatar-inner { width:230px; height:230px; }
}

/* ===== 1200px+ ===== */
@media (min-width:1200px) {
  .container { padding:0 20px; }
  .section { padding:120px 0; }
  .skills__grid { grid-template-columns:repeat(3,1fr); }
}