/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --red:    #e63946;
  --cream:  #f1faee;
  --teal:   #a8dadc;
  --blue:   #457b9d;
  --navy:   #1d3557;
  --navy-2: #162840;
  --navy-3: #0f1e31;

  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  --section-pad: clamp(80px, 10vw, 140px);
  --container:   1140px;
  --radius:      12px;
  --transition:  0.35s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--navy-3);
  color: var(--cream);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }

/* ===== UTILITIES ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 6px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .04em;
  transition: var(--transition);
}

.btn--primary {
  background: var(--red);
  color: var(--cream);
}

.btn--primary:hover {
  background: #c1121f;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(230,57,70,.35);
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 clamp(20px, 5vw, 60px);
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(15, 30, 49, .75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(168,218,220,.08);
  transition: var(--transition);
}

.nav__inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: .12em;
  color: var(--red);
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  gap: 32px;
  flex: 1;
  justify-content: center;
}

.nav__links a {
  font-size: .875rem;
  font-weight: 500;
  color: rgba(241,250,238,.65);
  letter-spacing: .04em;
  transition: color var(--transition);
}

.nav__links a:hover { color: var(--cream); }

.nav__lang {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.lang-sep { color: rgba(241,250,238,.2); font-size: .8rem; }

.lang-btn {
  font-family: var(--font-head);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: rgba(241,250,238,.4);
  padding: 4px 8px;
  border-radius: 4px;
  transition: var(--transition);
}

.lang-btn.active, .lang-btn:hover {
  color: var(--cream);
  background: rgba(230,57,70,.15);
}
.lang-btn.active { color: var(--red); }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  margin-left: auto;
}
.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cream);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px clamp(20px, 5vw, 60px) 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(69,123,157,.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(230,57,70,.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero__content {
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  font-family: var(--font-head);
  font-size: clamp(.8rem, 1.2vw, .9rem);
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 24px;
  transition-delay: .1s;
}

.hero__headline {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -.02em;
  margin-bottom: 28px;
  transition-delay: .2s;
}

.hero__sub {
  font-size: clamp(.95rem, 1.5vw, 1.1rem);
  color: rgba(241,250,238,.55);
  letter-spacing: .08em;
  margin-bottom: 48px;
  transition-delay: .3s;
}

.hero__content .reveal { transition-delay: inherit; }

.hero .btn { transition-delay: .4s; }

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
}
.hero__scroll span {
  display: block;
  width: 24px;
  height: 38px;
  border: 2px solid rgba(241,250,238,.2);
  border-radius: 12px;
  position: relative;
}
.hero__scroll span::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--red);
  border-radius: 2px;
  animation: scrollDown 1.8s ease infinite;
}
@keyframes scrollDown {
  0%   { opacity: 1; top: 6px; }
  80%  { opacity: 0; top: 20px; }
  100% { opacity: 0; top: 6px; }
}

/* ===== SECTIONS COMMONS ===== */
.section { padding: var(--section-pad) 0; }

.section__label {
  font-family: var(--font-head);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 48px;
}

/* ===== ABOUT ===== */
.about { background: var(--navy-2); }

.about__text {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: rgba(241,250,238,.75);
  max-width: 740px;
  line-height: 1.8;
  margin-bottom: 64px;
}

.about__pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.pillar {
  background: rgba(69,123,157,.08);
  border: 1px solid rgba(168,218,220,.1);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
}

.pillar:hover {
  background: rgba(69,123,157,.14);
  border-color: rgba(168,218,220,.2);
  transform: translateY(-4px);
}

.pillar__icon { font-size: 2rem; margin-bottom: 16px; }

.pillar__title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.pillar__desc {
  font-size: .9rem;
  color: rgba(241,250,238,.6);
  line-height: 1.6;
}

/* ===== EXPERTISE ===== */
.expertise { background: var(--navy-3); }

.expertise__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.expertise__card {
  background: rgba(22,40,64,.6);
  border: 1px solid rgba(168,218,220,.08);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.expertise__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 0;
  background: var(--red);
  border-radius: 0 0 3px 3px;
  transition: height var(--transition);
}

.expertise__card:hover {
  border-color: rgba(230,57,70,.25);
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(0,0,0,.3);
}

.expertise__card:hover::before { height: 100%; border-radius: 0; }

.expertise__card-icon { font-size: 2rem; margin-bottom: 20px; }

.expertise__card h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.expertise__card p {
  font-size: .875rem;
  color: rgba(241,250,238,.6);
  line-height: 1.65;
}

/* ===== EXPERIENCE ===== */
.experience { background: var(--navy-2); }

.timeline { display: flex; flex-direction: column; gap: 56px; }

.timeline__company-header {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(168,218,220,.12);
}

.company-logo {
  height: 26px;
  width: auto;
  max-width: 110px;
  object-fit: contain;
  opacity: .9;
  flex-shrink: 0;
}

.company-logo--squad {
  height: 32px;
  max-width: 32px;
}

.school-logo {
  height: 26px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  opacity: .7;
  margin-bottom: 12px;
  display: block;
}

.timeline__company-name {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--teal);
}

.timeline__company-period {
  font-size: .8rem;
  color: rgba(241,250,238,.4);
  letter-spacing: .04em;
}

.timeline__role {
  padding: 20px 0;
  border-bottom: 1px solid rgba(241,250,238,.05);
}
.timeline__role:last-child { border-bottom: none; }

.timeline__role-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.timeline__role-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--cream);
}

.timeline__role-period {
  font-size: .78rem;
  color: rgba(241,250,238,.4);
  letter-spacing: .03em;
  white-space: nowrap;
}

.timeline__bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 0;
}

.timeline__bullets li {
  font-size: .875rem;
  color: rgba(241,250,238,.65);
  line-height: 1.55;
  padding-left: 20px;
  position: relative;
}

.timeline__bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--red);
  font-size: .8rem;
}

/* ===== EDUCATION ===== */
.education { background: var(--navy-3); }

.edu__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.edu__card {
  background: rgba(22,40,64,.6);
  border: 1px solid rgba(168,218,220,.08);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  gap: 20px;
  transition: var(--transition);
}

.edu__card:hover {
  border-color: rgba(168,218,220,.2);
  transform: translateY(-3px);
}

.edu__card-year {
  font-family: var(--font-head);
  font-size: .8rem;
  font-weight: 700;
  color: var(--red);
  letter-spacing: .06em;
  white-space: nowrap;
  padding-top: 3px;
  flex-shrink: 0;
}

.edu__card-body h3 {
  font-family: var(--font-head);
  font-size: .975rem;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.35;
}

.edu__card-school {
  font-size: .8rem;
  color: var(--teal);
  margin-bottom: 14px;
}

.edu__badges {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.edu__badges li {
  font-size: .8rem;
  color: rgba(241,250,238,.55);
}

/* ===== PROJECTS ===== */
.projects { background: var(--navy-2); }

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.project__card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: rgba(15,30,49,.7);
  border: 1px solid rgba(168,218,220,.08);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.project__card:hover {
  border-color: rgba(230,57,70,.3);
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(0,0,0,.35);
}

.project__card--featured {
  border-color: rgba(230,57,70,.2);
  background: linear-gradient(135deg, rgba(230,57,70,.06) 0%, rgba(15,30,49,.7) 60%);
  grid-column: span 1;
}

@media (min-width: 900px) {
  .project__card--featured { grid-column: span 2; }
}

.project__card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project__tag {
  font-family: var(--font-head);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
}

.project__tag--ai {
  background: rgba(230,57,70,.15);
  color: var(--red);
  border: 1px solid rgba(230,57,70,.25);
}

.project__tag--defensive {
  background: rgba(168,218,220,.1);
  color: var(--teal);
  border: 1px solid rgba(168,218,220,.2);
}

.project__github {
  font-size: 1.2rem;
  color: rgba(241,250,238,.3);
  transition: color var(--transition);
}

.project__card:hover .project__github { color: var(--red); }

.project__title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
}

.project__desc {
  font-size: .875rem;
  color: rgba(241,250,238,.6);
  line-height: 1.65;
  flex: 1;
}

.project__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.project__stack span {
  font-size: .72rem;
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: .06em;
  padding: 3px 10px;
  border-radius: 4px;
  background: rgba(69,123,157,.12);
  color: var(--blue);
  border: 1px solid rgba(69,123,157,.2);
}

.projects__cta { text-align: center; }

.btn--outline {
  background: transparent;
  color: var(--cream);
  border: 1px solid rgba(241,250,238,.2);
}

.btn--outline:hover {
  border-color: var(--red);
  color: var(--red);
  transform: translateY(-2px);
}

/* ===== CONTACT ===== */
.contact { background: var(--navy-2); text-align: center; }

.contact .section__title { margin-bottom: 16px; }

.contact__sub {
  color: rgba(241,250,238,.6);
  max-width: 500px;
  margin: 0 auto 56px;
  font-size: .975rem;
}

.contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 8px;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: .9rem;
  border: 1px solid rgba(168,218,220,.15);
  background: rgba(69,123,157,.08);
  transition: var(--transition);
  letter-spacing: .03em;
}

.contact__link:hover {
  border-color: rgba(168,218,220,.35);
  background: rgba(69,123,157,.15);
  transform: translateY(-3px);
}

.contact__link--primary {
  background: var(--red);
  border-color: var(--red);
  color: var(--cream);
}
.contact__link--primary:hover {
  background: #c1121f;
  border-color: #c1121f;
  box-shadow: 0 8px 24px rgba(230,57,70,.35);
}

.contact__link-icon { font-size: 1.1rem; }

/* ===== FOOTER ===== */
.footer {
  padding: 28px;
  text-align: center;
  font-size: .78rem;
  color: rgba(241,250,238,.2);
  background: var(--navy-3);
  border-top: 1px solid rgba(168,218,220,.05);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(15,30,49,.97);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 16px 0;
    border-bottom: 1px solid rgba(168,218,220,.08);
  }

  .nav__links.open { display: flex; }
  .nav__links li { width: 100%; text-align: center; }
  .nav__links a { display: block; padding: 14px; font-size: .9rem; }

  .nav__burger { display: flex; }

  .nav__inner { gap: 16px; }

  .nav__lang { margin-left: 0; }

  .timeline__role-meta { flex-direction: column; gap: 4px; }

  .edu__card { flex-direction: column; gap: 10px; }

  .contact__links { flex-direction: column; align-items: center; }
  .contact__link { width: 100%; max-width: 320px; justify-content: center; }
}

@media (max-width: 480px) {
  .hero__headline { font-size: 2rem; }
  .section__title  { font-size: 1.6rem; }
}