/* ==========================================================================
   Rishab Das — Portfolio
   Apple-inspired design system (see DESIGN.md)
   Vanilla CSS, no build step.
   ========================================================================== */

/* ----- Tokens ----- */
:root {
  /* Color — primary */
  --black: #000000;
  --light-gray: #f5f5f7;
  --near-black: #1d1d1f;
  --white: #ffffff;

  /* Color — interactive */
  --apple-blue: #0071e3;
  --link-blue: #0066cc;
  --bright-blue: #2997ff;

  /* Color — text */
  --text-on-light: #1d1d1f;
  --text-on-light-soft: rgba(0, 0, 0, 0.8);
  --text-on-light-mute: rgba(0, 0, 0, 0.56);
  --text-on-light-tert: rgba(0, 0, 0, 0.48);
  --text-on-dark: #ffffff;
  --text-on-dark-soft: rgba(255, 255, 255, 0.8);
  --text-on-dark-mute: rgba(255, 255, 255, 0.56);

  /* Color — surfaces */
  --surface-1: #272729;
  --surface-2: #28282a;
  --surface-3: #2a2a2d;
  --surface-light-alt: #fafafc;
  --hairline-light: rgba(0, 0, 0, 0.08);
  --hairline-dark: rgba(255, 255, 255, 0.12);

  /* Shadow */
  --card-shadow: rgba(0, 0, 0, 0.22) 3px 5px 30px 0px;

  /* Radius */
  --r-micro: 5px;
  --r-std: 8px;
  --r-comfy: 11px;
  --r-large: 12px;
  --r-pill: 980px;

  /* Type */
  --font-display: "SF Pro Display", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-text: "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Layout */
  --container: 980px;
  --container-wide: 1024px;
  --nav-h: 48px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-text);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.47;
  letter-spacing: -0.374px;
  color: var(--text-on-light);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button { font: inherit; cursor: pointer; }

ul { list-style: none; padding: 0; margin: 0; }

:focus-visible {
  outline: 2px solid var(--apple-blue);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ----- Container & section rhythm ----- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 22px;
}

section {
  padding: 120px 0;
}

/* Alternating cinematic blocks */
#hero,
#experience,
#projects,
#contact {
  background: var(--black);
  color: var(--text-on-dark);
}

#about,
#skills,
#education {
  background: var(--light-gray);
  color: var(--text-on-light);
}

/* ----- Typography utility classes ----- */
.section-label {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.33;
  letter-spacing: -0.12px;
  text-transform: uppercase;
  color: var(--apple-blue);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 600;
  line-height: 1.10;
  letter-spacing: normal;
  margin: 0 0 56px;
}

#experience .section-label,
#projects .section-label,
#contact .section-label { color: var(--bright-blue); }

.section-sub {
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -0.374px;
  margin: -40px 0 56px;
  color: var(--text-on-light-soft);
}

#projects .section-sub,
#contact .section-sub { color: var(--text-on-dark-soft); }

#projects .section-sub a,
#contact .section-sub a { color: var(--bright-blue); }

/* ==========================================================================
   NAVIGATION — translucent dark glass
   ========================================================================== */
#navbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  background: rgba(0, 0, 0, 0.8);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  z-index: 9999;
}

.nav-inner {
  max-width: var(--container-wide);
  height: 100%;
  margin: 0 auto;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.374px;
  color: var(--white);
}

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.33;
  letter-spacing: -0.12px;
  color: var(--white);
  opacity: 0.88;
  transition: opacity 0.2s ease;
}

.nav-links a:hover { opacity: 1; }

.nav-resume-btn {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: -0.12px;
  color: var(--white);
  background: var(--apple-blue);
  padding: 6px 14px;
  border-radius: var(--r-pill);
  transition: filter 0.2s ease;
}

.nav-resume-btn:hover { filter: brightness(1.1); }

/* Hamburger (mobile) */
.hamburger {
  display: none;
  width: 32px;
  height: 32px;
  border: 0;
  background: transparent;
  padding: 0;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}
.hamburger span {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--white);
  margin: 0 auto;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-mobile {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 auto 0;
  background: rgba(0, 0, 0, 0.92);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  flex-direction: column;
  padding: 8px 22px 24px;
  border-bottom: 1px solid var(--hairline-dark);
}
.nav-mobile a {
  font-family: var(--font-text);
  font-size: 17px;
  font-weight: 400;
  letter-spacing: -0.374px;
  color: var(--white);
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-dark);
}
.nav-mobile a:last-child { border-bottom: 0; }
.nav-mobile.open { display: flex; }

.mobile-resume-btn {
  margin-top: 12px;
  text-align: center;
  background: var(--apple-blue);
  border-radius: var(--r-pill);
  padding: 12px 18px !important;
}

/* ==========================================================================
   HERO
   ========================================================================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 160px 22px 120px;
  text-align: center;
}

.hero-content {
  max-width: 760px;
  margin: 0 auto;
}

.hero-name {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 600;
  line-height: 1.07;
  letter-spacing: -0.28px;
  margin: 0 0 8px;
  color: var(--white);
}

.hero-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: 0.196px;
  margin: 0 0 28px;
  color: var(--text-on-dark-soft);
}

.hero-sub {
  font-family: var(--font-text);
  font-size: 21px;
  font-weight: 400;
  line-height: 1.381;
  letter-spacing: 0.011em;
  max-width: 620px;
  margin: 0 auto 40px;
  color: var(--text-on-dark-soft);
}

.hero-sub .hl {
  color: var(--white);
  font-weight: 600;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-links {
  display: flex;
  gap: 18px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.hero-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.43;
  letter-spacing: -0.224px;
  color: var(--bright-blue);
}

.hero-links a:hover { text-decoration: underline; }

.hero-links svg {
  width: 16px;
  height: 16px;
}

.hero-link-sep {
  display: inline-block;
  width: 1px;
  height: 12px;
  background: var(--hairline-dark);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-text);
  font-size: 17px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.022em;
  padding: 12px 22px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  transition: filter 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.btn-primary {
  background: var(--apple-blue);
  color: var(--white);
}
.btn-primary:hover { filter: brightness(1.08); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--near-black);
}

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text p {
  font-family: var(--font-text);
  font-size: 19px;
  line-height: 1.4737;
  letter-spacing: 0.012em;
  color: var(--text-on-light-soft);
  margin: 0 0 20px;
}
.about-text p:last-child { margin-bottom: 0; }
.about-text strong {
  color: var(--text-on-light);
  font-weight: 600;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--r-large);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--card-shadow);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 600;
  line-height: 1.10;
  color: var(--apple-blue);
}

.stat-label {
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: -0.224px;
  color: var(--text-on-light-soft);
}

/* ==========================================================================
   EXPERIENCE / TIMELINE
   ========================================================================== */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 24px;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--apple-blue);
  margin: 22px 6px 0;
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.2);
}

.timeline-card {
  background: var(--surface-1);
  border-radius: var(--r-large);
  padding: 32px 36px;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.job-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: 0.007em;
  margin: 0 0 4px;
  color: var(--white);
}

.job-company {
  font-family: var(--font-text);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.47;
  letter-spacing: -0.374px;
  margin: 0;
}
.job-company a {
  color: var(--bright-blue);
}
.job-company a:hover { text-decoration: underline; }

.job-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.job-badge {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.12px;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: rgba(41, 151, 255, 0.16);
  color: var(--bright-blue);
}
.job-badge.current {
  background: var(--apple-blue);
  color: var(--white);
}

.job-date {
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: -0.224px;
  color: var(--text-on-dark-mute);
}

.job-bullets {
  margin: 0 0 24px;
  padding: 0;
}
.job-bullets li {
  position: relative;
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -0.374px;
  color: var(--text-on-dark-soft);
  padding-left: 22px;
  margin-bottom: 10px;
}
.job-bullets li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 11px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--bright-blue);
}
.job-bullets li:last-child { margin-bottom: 0; }
.job-bullets strong {
  color: var(--white);
  font-weight: 600;
}

.job-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.job-tags span {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.12px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: var(--surface-3);
  color: var(--text-on-dark-soft);
}

/* ==========================================================================
   SKILLS
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.skill-group {
  background: var(--white);
  border-radius: var(--r-large);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.skill-group-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-std);
  display: grid;
  place-items: center;
  font-size: 20px;
  background: var(--light-gray);
  color: var(--apple-blue);
}

.skill-group-title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.19;
  letter-spacing: 0.011em;
  margin: 0;
  color: var(--text-on-light);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.33;
  letter-spacing: -0.12px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: var(--light-gray);
  color: var(--text-on-light-soft);
}

/* All tag color variants flatten to the single accent system */
.tag-blue,
.tag-green,
.tag-purple {
  background: rgba(0, 113, 227, 0.10);
  color: var(--link-blue);
}

/* ==========================================================================
   PROJECTS
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--surface-1);
  border-radius: var(--r-large);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 200px;
  transition: transform 0.3s ease, background 0.3s ease;
}

.project-card:hover {
  background: var(--surface-3);
  transform: translateY(-2px);
}

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.project-name {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.19;
  letter-spacing: 0.011em;
  color: var(--white);
  word-break: break-word;
}

.project-link-icon {
  flex-shrink: 0;
  color: var(--bright-blue);
}
.project-link-icon svg { width: 16px; height: 16px; }

.project-desc {
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.43;
  letter-spacing: -0.224px;
  color: var(--text-on-dark-soft);
  margin: 0;
  flex: 1;
}

.project-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--hairline-dark);
}

.project-lang {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.12px;
  color: var(--text-on-dark-soft);
}

.lang-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.project-stars {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.12px;
  color: var(--text-on-dark-mute);
}

.project-loading,
.project-error {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 60px 20px;
  color: var(--text-on-dark-soft);
  text-align: center;
}
.project-error a { color: var(--bright-blue); }
.project-error a:hover { text-decoration: underline; }

.spinner {
  width: 28px;
  height: 28px;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-top-color: var(--bright-blue);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================================================
   EDUCATION
   ========================================================================== */
.edu-card {
  background: var(--white);
  border-radius: var(--r-large);
  padding: 40px;
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 32px;
  align-items: start;
}

.edu-logo {
  width: 96px;
  height: 96px;
  border-radius: var(--r-large);
  background: var(--near-black);
  color: var(--white);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 600;
  line-height: 1;
}

.edu-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.edu-school {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: 0.007em;
  margin: 0 0 4px;
  color: var(--text-on-light);
}

.edu-degree {
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -0.374px;
  margin: 0;
  color: var(--text-on-light-soft);
}

.edu-badge {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.12px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: rgba(0, 113, 227, 0.10);
  color: var(--link-blue);
}

.edu-courses {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.course-tag {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.12px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: var(--light-gray);
  color: var(--text-on-light-soft);
}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-sub {
  font-family: var(--font-text);
  font-size: 19px;
  line-height: 1.4737;
  letter-spacing: 0.012em;
  color: var(--text-on-dark-soft);
  margin: -40px 0 56px;
  max-width: 620px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  background: var(--surface-1);
  border-radius: var(--r-large);
  transition: background 0.25s ease, transform 0.25s ease;
}

.contact-card:hover {
  background: var(--surface-3);
  transform: translateY(-2px);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-std);
  background: rgba(41, 151, 255, 0.16);
  color: var(--bright-blue);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.contact-icon svg { width: 22px; height: 22px; }

.contact-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.contact-label {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.12px;
  color: var(--text-on-dark-mute);
  text-transform: uppercase;
}

.contact-value {
  font-family: var(--font-text);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.24;
  letter-spacing: -0.374px;
  color: var(--white);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-arrow {
  width: 18px;
  height: 18px;
  color: var(--bright-blue);
  flex-shrink: 0;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
  background: var(--light-gray);
  padding: 32px 0;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.374px;
  color: var(--text-on-light);
}

.footer-copy {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: -0.12px;
  color: var(--text-on-light-mute);
}
.footer-copy a { color: var(--link-blue); }
.footer-copy a:hover { text-decoration: underline; }

/* ==========================================================================
   SCROLL REVEAL (kept compatible with existing script.js)
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
  section { padding: 96px 0; }
  .section-title { font-size: 36px; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 834px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-stats { grid-template-columns: repeat(3, 1fr); }
  .skills-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-resume-btn { display: none; }
  .hamburger { display: flex; }

  section { padding: 80px 0; }

  .hero-name { font-size: 40px; letter-spacing: -0.005em; }
  .hero-title { font-size: 22px; }
  .hero-sub { font-size: 17px; letter-spacing: -0.022em; }
  .section-title { font-size: 32px; }

  .timeline-card { padding: 24px; }
  .job-title { font-size: 22px; }
  .timeline-header { flex-direction: column; align-items: flex-start; }
  .job-meta { flex-direction: row; align-items: center; }

  .projects-grid { grid-template-columns: 1fr; }

  .edu-card { grid-template-columns: 1fr; padding: 28px; gap: 20px; }
  .edu-logo { width: 64px; height: 64px; font-size: 32px; }
  .edu-header { flex-direction: column; align-items: flex-start; }

  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  section { padding: 64px 0; }

  .hero-name { font-size: 34px; }
  .hero-title { font-size: 19px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }

  .about-stats { grid-template-columns: 1fr; }
  .stat-card { padding: 22px; }

  .section-title { font-size: 28px; margin-bottom: 40px; }
  .section-sub,
  .contact-sub { margin-top: -28px; margin-bottom: 40px; }

  .timeline-item { grid-template-columns: 1fr; gap: 12px; }
  .timeline-dot { display: none; }

  .skill-group { padding: 24px; }
  .contact-card { padding: 18px 20px; gap: 14px; }
  .contact-value { font-size: 15px; }
}