/* ============================================
   ROSHAN SHRESTHA — PORTFOLIO
   Theme: Black · White · Geometric · Sharp
   Inspired by RS Logo
   ============================================ */

:root {
  --black: #000000;
  --white: #ffffff;
  --grey: #0a0a0a;
  --grey-mid: #141414;
  --grey-soft: #1e1e1e;
  --white-dim: rgba(255,255,255,0.6);
  --white-faint: rgba(255,255,255,0.08);
  --white-line: rgba(255,255,255,0.1);
  --accent: #ffffff;
}

/* ── RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
}

/* Grain overlay */
body::after {
  content: '';
  position: fixed; inset: 0; z-index: 9990; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.02'/%3E%3C/svg%3E");
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── CURSOR ── */
#cur, #cur-ring {
  position: fixed; top: 0; left: 0;
  z-index: 9999; pointer-events: none;
  will-change: transform;
}
#cur {
  width: 6px; height: 6px;
  background: var(--white);
  border-radius: 50%;
}
#cur-ring {
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 50%;
  transition: width 0.3s, height 0.3s, background 0.3s, border-color 0.3s;
}

/* ── LOADER ── */
#loader {
  position: fixed; inset: 0; z-index: 9998;
  background: var(--black);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2rem;
  transition: opacity 0.8s ease;
}
.loader-logo {
  width: 80px; height: 80px;
  animation: loaderPulse 1.2s ease-in-out infinite alternate;
}
.loader-logo img { width: 100%; height: 100%; object-fit: contain; filter: invert(0); }
.loader-line {
  width: 0; height: 1px;
  background: var(--white);
  animation: expandLine 1.2s ease forwards;
}
.loader-sub {
  font-family: 'DM Mono'; font-size: 0.65rem;
  letter-spacing: 6px; color: var(--white-dim);
  animation: fadeIn 0.8s ease 0.4s both;
}

/* ── NAVIGATION ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 4rem;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--white-line);
}
.nav-logo { width: 60px; height: 60px; object-fit: contain; }
.nav-links { display: flex; gap: 2.5rem; }
.nav-links a {
  font-family: 'DM Mono'; font-size: 0.7rem;
  letter-spacing: 2px; color: var(--white-dim);
  text-transform: uppercase;
  transition: color 0.3s;
  position: relative;
}
.nav-links a::after {
  content: ''; position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--white);
  transform: scaleX(0); transition: transform 0.3s;
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-menu-btn {
  display: none;
  font-family: 'DM Mono'; font-size: 0.7rem;
  letter-spacing: 3px; color: var(--white);
  background: none; border: 1px solid var(--white-line);
  padding: 0.5rem 1rem; cursor: none;
}

/* ── MOBILE MENU ── */
.mobile-menu {
  position: fixed; inset: 0; z-index: 600;
  background: var(--black);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2rem;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-close {
  position: absolute; top: 2rem; right: 2rem;
  font-size: 1.5rem; background: none; border: none;
  color: var(--white); cursor: none;
}
.mm-link {
  font-family: 'Bebas Neue'; font-size: 3rem;
  letter-spacing: 4px; color: var(--white-dim);
  transition: color 0.3s;
}
.mm-link:hover { color: var(--white); }

/* ── SECTION MARKERS ── */
.section-marker {
  display: flex; align-items: center; gap: 2rem;
  padding: 6rem 4rem 2rem;
  position: relative; z-index: 1;
}
.sm-num {
  font-family: 'DM Mono'; font-size: 0.7rem;
  letter-spacing: 4px; color: var(--white-dim);
  white-space: nowrap;
}
.sm-line { flex: 1; height: 1px; background: var(--white-line); }
.sm-title {
  font-family: 'DM Mono'; font-size: 0.7rem;
  letter-spacing: 4px; color: var(--white-dim);
  white-space: nowrap;
}

/* ── TEXT UTILITIES ── */
.text-outline {
  -webkit-text-stroke: 1px var(--white);
  color: transparent;
}

/* ── HERO ── */
#hero {
  height: 100vh; min-height: 700px;
  position: relative;
  display: flex; align-items: flex-end;
  padding: 0 4rem 5rem;
  overflow: hidden;
}

/* Geometric grid overlay */
.hero-grid-overlay {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(var(--white-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--white-faint) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

/* Corner brackets inspired by logo circle */
.hero-corner {
  position: absolute; z-index: 1;
  width: 40px; height: 40px;
}
.hero-corner-tl { top: 100px; left: 4rem; border-top: 1px solid var(--white-line); border-left: 1px solid var(--white-line); }
.hero-corner-tr { top: 100px; right: 4rem; border-top: 1px solid var(--white-line); border-right: 1px solid var(--white-line); }
.hero-corner-bl { bottom: 5rem; left: 4rem; border-bottom: 1px solid var(--white-line); border-left: 1px solid var(--white-line); }
.hero-corner-br { bottom: 5rem; right: 4rem; border-bottom: 1px solid var(--white-line); border-right: 1px solid var(--white-line); }

/* Large logo watermark */
.hero-center-logo {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0; pointer-events: none;
  width: min(70vw, 600px);
  opacity: 0.03;
}
.hero-logo-img { width: 100%; height: auto; }

.hero-content {
  position: relative; z-index: 2;
  width: 100%;
  display: grid; grid-template-columns: 1fr auto;
  align-items: flex-end; gap: 4rem;
}
.hero-eyebrow {
  display: flex; align-items: center; gap: 0.8rem;
  font-family: 'DM Mono'; font-size: 0.75rem;
  letter-spacing: 4px; color: var(--white-dim);
  margin-bottom: 2rem;
}
.eyebrow-dot {
  width: 6px; height: 6px;
  background: var(--white); border-radius: 50%;
  animation: pulse 2s ease infinite;
}
.hero-title {
  display: flex; flex-direction: column;
  font-family: 'Bebas Neue';
  font-size: clamp(5rem, 13vw, 14rem);
  line-height: 0.85; letter-spacing: 2px;
  margin-bottom: 2rem;
}
.ht-outline { -webkit-text-stroke: 2px var(--white); color: transparent; }
.ht-filled { color: var(--white); }
.hero-sub {
  font-size: 1.1rem; font-weight: 300;
  color: var(--white-dim); max-width: 400px;
  line-height: 1.7; margin-bottom: 3rem;
}
.hero-cta {
  display: inline-flex; align-items: center; gap: 1.5rem;
  font-family: 'DM Mono'; font-size: 0.75rem;
  letter-spacing: 4px; color: var(--white);
  transition: gap 0.3s;
}
.hero-cta:hover { gap: 2.5rem; }
.cta-line { width: 60px; height: 1px; background: var(--white); transition: width 0.3s; }
.hero-cta:hover .cta-line { width: 100px; }

.hero-stat-block {
  display: flex; flex-direction: column; gap: 2rem;
  border-left: 1px solid var(--white-line);
  padding-left: 3rem;
}
.hero-stat { }
.hs-num {
  font-family: 'Bebas Neue'; font-size: 2.5rem;
  letter-spacing: 3px; line-height: 1;
}
.hs-label {
  font-family: 'DM Mono'; font-size: 0.6rem;
  letter-spacing: 3px; color: var(--white-dim);
  margin-top: 0.3rem;
}

.hero-scroll-indicator {
  position: absolute; bottom: 5rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column;
  align-items: center; gap: 1rem; z-index: 2;
}
.scroll-line {
  width: 1px; height: 60px;
  background: linear-gradient(to bottom, transparent, var(--white-dim));
  animation: scrollPulse 2s ease infinite;
}
.hero-scroll-indicator span {
  font-family: 'DM Mono'; font-size: 0.6rem;
  letter-spacing: 4px; color: var(--white-dim);
  writing-mode: vertical-rl;
}

/* ── ABOUT ── */
#about {
  padding: 2rem 4rem 6rem;
  position: relative; z-index: 1;
}
.about-layout {
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 6rem; align-items: start;
}
.about-img-frame {
  position: relative;
}
.about-img {
  width: 100%; aspect-ratio: 3/4;
  object-fit: cover; object-position: center top;
  filter: grayscale(100%) contrast(1.1);
  transition: filter 0.5s;
  display: block;
}
.about-img-frame:hover .about-img { filter: grayscale(60%) contrast(1.1); }
.about-img-border {
  position: absolute; inset: 12px -12px -12px 12px;
  border: 1px solid var(--white-line); z-index: -1;
  pointer-events: none;
}
.about-img-tag {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--white-line);
  padding: 1rem 1.5rem;
  display: flex; align-items: center; gap: 1rem;
}
.img-tag-logo { width: 24px; height: 24px; object-fit: contain; }
.about-img-tag span {
  font-family: 'DM Mono'; font-size: 0.65rem;
  letter-spacing: 3px; color: var(--white-dim);
}
.about-label {
  font-family: 'DM Mono'; font-size: 0.65rem;
  letter-spacing: 4px; color: var(--white-dim);
  margin-bottom: 1.5rem;
}
.about-heading {
  font-family: 'Bebas Neue'; font-size: clamp(3rem, 5vw, 5.5rem);
  line-height: 0.9; letter-spacing: 2px;
  margin-bottom: 2.5rem;
}
.about-body {
  font-size: 1.05rem; font-weight: 300;
  color: var(--white-dim); line-height: 1.9;
  margin-bottom: 2.5rem;
}
.about-body strong { color: var(--white); font-weight: 600; }
.about-tags {
  display: flex; flex-wrap: wrap; gap: 0.8rem;
  margin-bottom: 3rem;
}
.a-tag {
  font-family: 'DM Mono'; font-size: 0.65rem;
  letter-spacing: 2px; padding: 0.5rem 1rem;
  border: 1px solid var(--white-line);
  color: var(--white-dim);
  transition: border-color 0.3s, color 0.3s;
}
.a-tag:hover { border-color: var(--white); color: var(--white); }
.about-facts {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2rem; padding-top: 2rem;
  border-top: 1px solid var(--white-line);
}
.fact-val {
  font-family: 'Bebas Neue'; font-size: 2.2rem;
  letter-spacing: 3px; line-height: 1;
}
.fact-key {
  font-family: 'DM Mono'; font-size: 0.6rem;
  letter-spacing: 2px; color: var(--white-dim);
  margin-top: 0.4rem;
}

/* ── SKILLS ── */
#skills {
  padding: 2rem 4rem 6rem;
  position: relative; z-index: 1;
}
.skills-layout {
  display: grid; grid-template-columns: 280px 1fr;
  gap: 6rem; align-items: start;
}
.skills-header { position: sticky; top: 120px; }
.skills-heading {
  font-family: 'Bebas Neue'; font-size: clamp(3rem, 4vw, 5rem);
  line-height: 0.9; letter-spacing: 2px; margin-bottom: 1.5rem;
}
.skills-desc {
  font-size: 0.95rem; font-weight: 300;
  color: var(--white-dim); line-height: 1.8;
}
.skills-categories { display: flex; flex-direction: column; }
.skill-cat { border-bottom: 1px solid var(--white-line); }
.skill-cat-header {
  display: flex; align-items: center; gap: 2rem;
  padding: 2rem 0; cursor: none;
  transition: background 0.2s;
}
.scat-num {
  font-family: 'DM Mono'; font-size: 0.7rem;
  letter-spacing: 2px; color: var(--white-dim);
  width: 30px;
}
.scat-name {
  font-family: 'Bebas Neue'; font-size: 2.2rem;
  letter-spacing: 3px; flex: 1;
  transition: color 0.3s;
}
.skill-cat-header:hover .scat-name { color: var(--white-dim); }
.scat-arrow {
  color: var(--white-dim);
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
}
.skill-cat.open .scat-arrow { transform: rotate(180deg); }
.skill-cat-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.16,1,0.3,1);
}
.skill-cat.open .skill-cat-body { max-height: 400px; }
.skill-list { padding: 0.5rem 0 2rem; display: flex; flex-direction: column; gap: 1.2rem; }
.skill-entry {
  display: flex; align-items: center; gap: 1.5rem;
}
.skill-entry-name {
  font-size: 0.95rem; font-weight: 400;
  color: var(--white-dim); min-width: 200px;
}
.skill-bar-outer {
  flex: 1; height: 1px; background: var(--white-line);
  position: relative; overflow: hidden;
}
.skill-bar-inner {
  position: absolute; top: 0; left: 0;
  height: 100%; width: 0%;
  background: var(--white);
  transition: width 1.2s cubic-bezier(0.16,1,0.3,1);
}
.skill-entry-pct {
  font-family: 'DM Mono'; font-size: 0.7rem;
  letter-spacing: 1px; color: var(--white-dim);
  min-width: 40px; text-align: right;
}

/* ── PROJECTS ── */
#projects {
  padding: 2rem 4rem 6rem;
  position: relative; z-index: 1;
}
.projects-header { margin-bottom: 4rem; }
.projects-heading {
  font-family: 'Bebas Neue'; font-size: clamp(3rem, 6vw, 7rem);
  line-height: 0.9; letter-spacing: 2px; margin-bottom: 1rem;
}
.projects-sub {
  font-size: 1rem; font-weight: 300; color: var(--white-dim);
}
.project-list {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--white-line);
  border: 1px solid var(--white-line);
}
.project-item { background: var(--black); }
.project-inner {
  padding: 3rem; height: 100%;
  display: flex; flex-direction: column; gap: 1.5rem;
  transition: background 0.3s;
}
.project-item:hover .project-inner { background: var(--grey); }
.project-top {
  display: flex; justify-content: space-between;
  align-items: flex-start;
}
.project-num {
  font-family: 'DM Mono'; font-size: 0.7rem;
  letter-spacing: 3px; color: var(--white-dim);
}
.project-tags-inline { display: flex; flex-wrap: wrap; gap: 0.4rem; justify-content: flex-end; }
.tag-pill {
  font-family: 'DM Mono'; font-size: 0.55rem;
  letter-spacing: 1px; padding: 0.3rem 0.7rem;
  border: 1px solid var(--white-line);
  color: var(--white-dim);
}
.project-name {
  font-family: 'Bebas Neue'; font-size: 2.2rem;
  letter-spacing: 2px; line-height: 1;
  flex: 1;
}
.project-desc {
  font-size: 0.95rem; font-weight: 300;
  color: var(--white-dim); line-height: 1.8;
}
.project-bottom {
  display: flex; justify-content: space-between;
  align-items: center; padding-top: 1.5rem;
  border-top: 1px solid var(--white-line);
}
.project-year {
  font-family: 'DM Mono'; font-size: 0.65rem;
  letter-spacing: 3px; color: var(--white-dim);
}
.project-arrow-btn {
  width: 36px; height: 36px;
  border: 1px solid var(--white-line);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: var(--white-dim);
  transition: background 0.3s, color 0.3s, transform 0.3s;
}
.project-item:hover .project-arrow-btn {
  background: var(--white); color: var(--black);
  transform: rotate(45deg);
}

/* ── CERTIFICATIONS ── */
#certifications {
  padding: 2rem 4rem 6rem;
  position: relative; z-index: 1;
}
.certs-header { margin-bottom: 4rem; }
.certs-heading {
  font-family: 'Bebas Neue'; font-size: clamp(3rem, 6vw, 7rem);
  line-height: 0.9; letter-spacing: 2px;
}
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px; background: var(--white-line);
  border: 1px solid var(--white-line);
}
.cert-card {
  background: var(--black);
  padding: 2.5rem;
  display: flex; flex-direction: column; gap: 0.8rem;
  transition: background 0.3s;
  position: relative; overflow: hidden;
}
.cert-card:hover { background: var(--grey); }
.cert-top {
  display: flex; justify-content: space-between;
  align-items: flex-start; margin-bottom: 0.5rem;
}
.cert-badge {
  font-family: 'Bebas Neue'; font-size: 3rem;
  letter-spacing: 4px; line-height: 1;
  color: var(--white);
}
.cert-logo-mark {
  width: 28px; height: 28px; opacity: 0.15;
  transition: opacity 0.3s;
}
.cert-card:hover .cert-logo-mark { opacity: 0.4; }
.cert-logo-mark img { width: 100%; height: 100%; object-fit: contain; }
.cert-name {
  font-size: 1rem; font-weight: 600;
  color: var(--white); line-height: 1.4;
}
.cert-issuer {
  font-family: 'DM Mono'; font-size: 0.65rem;
  letter-spacing: 3px; color: var(--white-dim);
  text-transform: uppercase;
}
.cert-meta {
  display: flex; flex-wrap: wrap; gap: 1rem;
  margin-top: auto; padding-top: 1.5rem;
  border-top: 1px solid var(--white-line);
}
.cert-date, .cert-id {
  font-family: 'DM Mono'; font-size: 0.6rem;
  letter-spacing: 2px; color: var(--white-dim);
}

/* ── CONTACT ── */
#contact {
  padding: 2rem 4rem 6rem;
  position: relative; z-index: 1;
}
.contact-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 6rem; align-items: start;
}
.contact-heading {
  font-family: 'Bebas Neue'; font-size: clamp(4rem, 7vw, 8rem);
  line-height: 0.85; letter-spacing: 2px; margin-bottom: 1.5rem;
}
.contact-sub {
  font-size: 1rem; font-weight: 300;
  color: var(--white-dim); line-height: 1.8;
  margin-bottom: 3rem; max-width: 380px;
}
.contact-links { display: flex; flex-direction: column; }
.contact-link-item {
  display: flex; align-items: center; gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--white-line);
  transition: padding-left 0.3s;
}
.contact-link-item:hover { padding-left: 0.5rem; }
.cli-label {
  font-family: 'DM Mono'; font-size: 0.6rem;
  letter-spacing: 3px; color: var(--white-dim);
  width: 80px; flex-shrink: 0;
}
.cli-value {
  font-size: 0.95rem; font-weight: 300;
  color: var(--white-dim); flex: 1;
  transition: color 0.3s;
}
.contact-link-item:hover .cli-value { color: var(--white); }
.cli-arrow { color: var(--white-dim); transition: transform 0.3s; }
.contact-link-item:hover .cli-arrow { transform: translate(4px, -4px); }

/* Form */
.cf-field { margin-bottom: 2rem; }
.cf-label {
  display: block;
  font-family: 'DM Mono'; font-size: 0.6rem;
  letter-spacing: 4px; color: var(--white-dim);
  margin-bottom: 0.8rem;
}
.cf-input, .cf-textarea {
  width: 100%; background: transparent;
  border: none; border-bottom: 1px solid var(--white-line);
  color: var(--white); font-family: 'Plus Jakarta Sans';
  font-size: 1rem; font-weight: 300;
  padding: 0.8rem 0; outline: none;
  transition: border-color 0.3s;
}
.cf-input:focus, .cf-textarea:focus { border-bottom-color: var(--white); }
.cf-input::placeholder, .cf-textarea::placeholder {
  color: rgba(255,255,255,0.15); font-style: italic;
}
.cf-textarea { resize: none; height: 100px; }
.cf-submit {
  display: inline-flex; align-items: center; gap: 1rem;
  font-family: 'DM Mono'; font-size: 0.75rem;
  letter-spacing: 4px; color: var(--black);
  background: var(--white); border: none;
  padding: 1.2rem 3rem; cursor: none;
  margin-top: 1rem;
  transition: background 0.3s, color 0.3s, transform 0.3s;
  position: relative; overflow: hidden;
}
.cf-submit::before {
  content: ''; position: absolute; inset: 0;
  background: var(--black);
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
}
.cf-submit:hover::before { transform: scaleX(1); }
.cf-submit:hover { color: var(--white); }
.cf-submit span, .btn-arrow { position: relative; z-index: 1; }
.cf-status {
  font-family: 'DM Mono'; font-size: 0.65rem;
  letter-spacing: 2px; margin-top: 1rem; min-height: 1.2rem;
}
.cf-status.success { color: #6fcf97; }
.cf-status.error { color: #eb5757; }

/* ── FOOTER ── */
footer {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between;
  padding: 3rem 4rem;
  border-top: 1px solid var(--white-line);
}
.footer-logo { width: 40px; height: 40px; object-fit: contain; opacity: 0.6; }
.footer-center {
  text-align: center;
}
.footer-center p {
  font-family: 'DM Mono'; font-size: 0.6rem;
  letter-spacing: 3px; color: var(--white-dim);
  line-height: 1.8;
}
.footer-right {
  display: flex; gap: 2rem;
}
.footer-right a {
  font-family: 'DM Mono'; font-size: 0.65rem;
  letter-spacing: 3px; color: var(--white-dim);
  transition: color 0.3s;
}
.footer-right a:hover { color: var(--white); }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.9s ease, transform 0.9s ease; }
.reveal.up { opacity: 1; transform: translateY(0); }
.rd1 { transition-delay: 0.1s; }
.rd2 { transition-delay: 0.2s; }
.rd3 { transition-delay: 0.3s; }

/* ── KEYFRAMES ── */
@keyframes loaderPulse { from { opacity: 0.4; } to { opacity: 1; } }
@keyframes expandLine { from { width: 0; } to { width: 200px; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse { 0%,100% { opacity: 0.4; transform: scale(1); } 50% { opacity: 1; transform: scale(1.5); } }
@keyframes scrollPulse { 0%,100% { opacity: 0.2; } 50% { opacity: 0.8; } }

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .project-list { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  nav { padding: 1.5rem 2rem; }
  .nav-links { display: none; }
  .nav-menu-btn { display: block; }
  .section-marker, #about, #skills, #projects, #certifications, #contact { padding-left: 2rem; padding-right: 2rem; }
  #hero { padding: 0 2rem 4rem; }
  .hero-content { grid-template-columns: 1fr; }
  .hero-stat-block { display: none; }
  .hero-title { font-size: clamp(4rem, 18vw, 8rem); }
  .about-layout { grid-template-columns: 1fr; gap: 3rem; }
  .about-img-frame { max-width: 320px; }
  .skills-layout { grid-template-columns: 1fr; gap: 3rem; }
  .skills-header { position: static; }
  .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
  .hero-corner-tr, .hero-corner-br { display: none; }
  footer { flex-direction: column; gap: 1.5rem; text-align: center; padding: 2rem; }
  .certs-grid { grid-template-columns: 1fr; }
}