/* ─────────────────────────────────────────────────────────────
   1. DESIGN TOKENS (CSS Custom Properties)
───────────────────────────────────────────────────────────────*/

:root {
  --clr-bg:         #0e0f11;
  --clr-surface:    #161719;
  --clr-surface2:   #1e2024;
  --clr-surface3:   #252830;
  --clr-border:     rgba(255, 255, 255, 0.072);
  --clr-border-hover: rgba(232, 185, 111, 0.30);

  --clr-accent:     #e8b96f;
  --clr-accent-dim: #c89a4a;
  --clr-accent-bg:  rgba(232, 185, 111, 0.08);
  --clr-accent-bg2: rgba(232, 185, 111, 0.14);

  --clr-text:       #e8e6e1;
  --clr-text-muted: #7a7a82;
  --clr-text-faint: rgba(232, 230, 225, 0.55);

  --sidebar-width:  280px;

  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  20px;
  --radius-full: 9999px;

  --font-head: 'Sora', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --text-xs:   11px;
  --text-sm:   13px;
  --text-base: 15px;
  --text-md:   17px;
  --text-lg:   20px;
  --text-3xl:  clamp(26px, 4vw, 42px);

  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast:   0.2s;
  --duration-base:   0.35s;
  --duration-slow:   0.6s;
  --duration-skill:  1.3s;

  --shadow-md:  0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg:  0 20px 48px rgba(0,0,0,0.5);
  --shadow-glow: 0 8px 24px rgba(232, 185, 111, 0.2);
}


/* ─────────────────────────────────────────────────────────────
   2. RESET
───────────────────────────────────────────────────────────────*/

*, *::before, *::after {
  box-sizing: border-box;
  margin:  0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size:   var(--text-base);
  line-height: 1.7;
  color:      var(--clr-text);
  background: var(--clr-bg);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { 
  display: block; 
  max-width: 100%; 
}


.project-img {
  width: 100%;
  height: auto; 
  aspect-ratio: 16 / 9; 
  object-fit: cover;
  display: block;
  background-color: var(--clr-surface2);
}

.project-number-top {
  display: block;
  padding: 15px 20px 5px 20px;
  color: var(--clr-accent);   
  font-size: var(--text-xs);  
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

button {
  font: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

input, textarea {
  font: inherit;
  background: none;
  border: none;
  display: block;
  width: 100%;
}

::selection {
  background: var(--clr-accent);
  color: var(--clr-bg);
}

:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::-webkit-scrollbar         { width: 6px; }
::-webkit-scrollbar-track   { background: var(--clr-bg); }
::-webkit-scrollbar-thumb   { background: var(--clr-surface3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-surface2); }

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}


/* ─────────────────────────────────────────────────────────────
   3. LAYOUT SHELL
───────────────────────────────────────────────────────────────*/

.layout {
  display: flex;
  min-height: 100vh;
}

@media (max-width: 768px) {
  .main { padding-top: 56px; }
}


/* ─────────────────────────────────────────────────────────────
   4. SIDEBAR
───────────────────────────────────────────────────────────────*/

.sidebar {
  width: var(--sidebar-width);
  background: var(--clr-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 40px 22px 32px;
  overflow-y: auto;
  flex-shrink: 0;
  z-index: 100;
  transition: left  var(--duration-base) var(--ease-out);
}

.avatar-fallback,
.profile-avatar {
  width: 112px;
  height: 112px;
  border-radius: 50%;
  border: 2.5px solid var(--clr-accent);
  flex-shrink: 0;
  object-fit: cover;
}

.avatar-fallback {
  background: linear-gradient(135deg, var(--clr-surface2), var(--clr-surface3));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 34px;
  font-weight: 800;
  color: var(--clr-accent);
  letter-spacing: -1px;
}

.sidebar-name {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 800;
  text-align: center;
  margin-top: 18px;
  letter-spacing: -0.3px;
  color: var(--clr-text);
}

.sidebar-role {
  display: inline-block;
  margin-top: 9px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  color: var(--clr-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  text-align: center;
  white-space: nowrap;
}

.sidebar-divider {
  width: 100%;
  height: 1px;
  background: var(--clr-border);
  margin: 22px 0;
  flex-shrink: 0;
}

.contact-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.contact-item:hover { color: var(--clr-text); }


.contact-item .icon {
  width: 32px;
  height: 32px;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--clr-accent);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.contact-item:hover .icon { border-color: var(--clr-border-hover); }

.contact-item span,
.contact-item a {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--clr-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.contact-item a:hover { color: var(--clr-accent); }

.social-row {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  transition:
    color        var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    transform    var(--duration-fast) var(--ease-out),
    box-shadow   var(--duration-fast) var(--ease-out);
}

.social-btn:hover {
  border-color: var(--clr-border-hover);
  color: var(--clr-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.sidebar-nav {
  margin-top: 32px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--clr-text-muted);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.2px;
  transition:
    background var(--duration-fast) var(--ease-out),
    color      var(--duration-fast) var(--ease-out);
}

.sidebar-nav .nav-link:hover {
  background: var(--clr-accent-bg);
  color: var(--clr-text);
}

.sidebar-nav .nav-link.active {
  background: var(--clr-accent-bg2);
  color: var(--clr-accent);
  font-weight: 700;
}

.sidebar-nav .nav-link svg {
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity var(--duration-fast);
}

.sidebar-nav .nav-link.active svg,
.sidebar-nav .nav-link:hover svg { opacity: 1; }


/* ─────────────────────────────────────────────────────────────
   5. MOBILE TOP NAV
───────────────────────────────────────────────────────────────*/

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: rgba(22, 23, 25, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
  align-items: center;
  padding: 0 20px;
  z-index: 200;
  justify-content: space-between;
}

.mobile-logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--clr-accent);
  letter-spacing: -0.5px;
}

.hamburger {
  width: 36px;
  height: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast);
}

.hamburger:hover { background: var(--clr-surface2); }

.hamburger span {
  width: 100%;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  display: block;
  transform-origin: center;
  transition: transform var(--duration-base) var(--ease-out),
              opacity  var(--duration-base) var(--ease-out);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 99;
  backdrop-filter: blur(2px);
}

.sidebar-overlay.show { display: block; }


/* ─────────────────────────────────────────────────────────────
   6. MAIN CONTENT AREA
───────────────────────────────────────────────────────────────*/

.main { flex: 1; overflow-y: auto; }

section[data-page] {
  display: none;
  min-height: 100vh;
  padding: 72px 64px;
  animation: sectionFadeIn var(--duration-slow) var(--ease-out) both;
}

section[data-page].active { display: block; }

@keyframes sectionFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  section[data-page] {
    padding: 40px 20px;
    min-height: auto;
  }
}


/* ─────────────────────────────────────────────────────────────
   7. SHARED SECTION HEADER
───────────────────────────────────────────────────────────────*/

.section-header { margin-bottom: 44px; }

.section-label {
  font-size: var(--text-xs);
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--clr-accent);
  font-weight: 700;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-family: var(--font-head);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  color: var(--clr-text);
}

.section-title span { color: var(--clr-accent); }

.sub-section-title {
  font-family: var(--font-head);
  font-size: var(--text-md);
  font-weight: 700;
  letter-spacing: -0.4px;
  margin-bottom: 22px;
  color: var(--clr-text);
}

.stagger > * {
  animation: staggerFade 0.55s var(--ease-out) both;
}
.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.12s; }
.stagger > *:nth-child(3) { animation-delay: 0.19s; }
.stagger > *:nth-child(4) { animation-delay: 0.26s; }
.stagger > *:nth-child(5) { animation-delay: 0.33s; }

@keyframes staggerFade {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ─────────────────────────────────────────────────────────────
   8. ABOUT — Summary
───────────────────────────────────────────────────────────────*/

.about-summary {
  font-size: 15.5px;
  line-height: 1.88;
  color: rgba(232, 230, 225, 0.80);
  max-width: 700px;
  padding: 20px 24px;
  border-left: 3px solid var(--clr-accent);
  background: var(--clr-accent-bg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 60px;
}

/* ─────────────────────────────────────────────────────────────
   9. ABOUT — Services Grid
───────────────────────────────────────────────────────────────*/
.sub-section-title span {
  color: var(--clr-accent);
}

.services-section-header {
  margin-bottom: 24px;
}

.services-section-header .section-label { margin-bottom: 6px; }

.services-section-header .sub-section-title { margin-bottom: 0; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}

.service-card {
  background: var(--clr-surface);
  border: 1px solid transparent; 
  border-radius: var(--radius-lg);
  padding: 28px 22px; 
  position: relative;
  overflow: hidden;
}

.service-icon {
  width: 46px;
  height: 46px;
  background: transparent; 
  display: flex;
  align-items: center;
  justify-content: flex-start; 
  color: var(--clr-accent);
  margin-bottom: 18px; 
}

.service-title {
  font-family: var(--font-head);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 9px;
  color: var(--clr-text);
}

.service-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.65;
}

/* ─────────────────────────────────────────────────────────────
   10. RESUME — Two-column layout
───────────────────────────────────────────────────────────────*/

.resume-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 52px;
}

@media (max-width: 900px) {
  .resume-cols { grid-template-columns: 1fr; gap: 32px; }
}

.resume-col-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 24px;
}

.resume-col-title svg { flex-shrink: 0; opacity: 0.85; }

.resume-col-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--clr-border);
}


/* ─────────────────────────────────────────────────────────────
   11. TIMELINE (Education, Experience, Military)
───────────────────────────────────────────────────────────────*/

.timeline { display: flex; flex-direction: column; }

.timeline-item {
  position: relative;
  padding: 0 0 30px 28px;
  border-left: 1px solid var(--clr-border);
  transition: border-color var(--duration-base);
}

.timeline-item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--clr-accent);
  border: 2px solid var(--clr-bg);
  transition: box-shadow var(--duration-base);
}

.timeline-item:hover::before {
  box-shadow: 0 0 0 4px var(--clr-accent-bg);
}

.tl-date {
  font-size: var(--text-xs);
  color: var(--clr-accent);
  font-weight: 700;
  letter-spacing: 0.4px;
  margin-bottom: 5px;
}

.tl-org {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--clr-text);
  margin-bottom: 3px;
}

.tl-role {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  font-weight: 500;
  margin-bottom: 10px;
}

.tl-desc {
  font-size: 13.5px;
  color: var(--clr-text-faint);
  line-height: 1.68;
}

.tl-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--clr-accent-bg);
  border: 1px solid rgba(232, 185, 111, 0.22);
  color: var(--clr-accent);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.3px;
  margin-bottom: 10px;
}

.timeline-spacer { margin-top: 36px; }


/* ─────────────────────────────────────────────────────────────
   12. SKILL BARS
───────────────────────────────────────────────────────────────*/

.skills-section { margin-top: 8px; }

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 48px;
}

@media (max-width: 900px) {
  .skills-grid { grid-template-columns: 1fr; }
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}

.skill-name {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--clr-text);
}

.skill-pct {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-accent);
  font-family: var(--font-head);
}

.skill-bar {
  height: 4px;
  background: var(--clr-surface2);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--clr-accent-dim), var(--clr-accent));
  width: 0%;
  transition: width var(--duration-skill) var(--ease-out);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tech-tag {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  padding: 5px 13px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--clr-text-muted);
  transition:
    color        var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    background   var(--duration-fast) var(--ease-out);
}




/* ─────────────────────────────────────────────────────────────
   13. PORTFOLIO — Project Cards
───────────────────────────────────────────────────────────────*/

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

@media (max-width: 768px) {
  .projects-grid { grid-template-columns: 1fr; }
}

.project-card {
  background: var(--clr-surface);
  position: relative;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition:
    transform    var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out),
    box-shadow   var(--duration-base) var(--ease-out);
}

.project-card:hover {
  border-color: var(--clr-border-hover);
  transform: translateY(-7px);
  box-shadow: var(--shadow-lg);
}

.project-card:active {
  transform: translateY(-2px) scale(0.98);
  transition: transform 0.1s;
}

.project-thumb {
  height: 176px;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.project-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.project-tag {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: var(--clr-accent-bg);
  border: 1px solid rgba(232, 185, 111, 0.18);
  padding: 3px 6px;
  border-radius: 4px;
}

.project-title {
  font-family: var(--font-head);
  font-size: var(--text-md);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.3;
  margin-bottom: 10px;
  color: var(--clr-text);
}

.project-desc {
  font-size: 13.5px;
  color: var(--clr-text-muted);
  line-height: 1.68;
  flex: 1;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--clr-border);
}

.project-period {
  font-size: 11.5px;
  color: var(--clr-text-muted);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--clr-accent);
  letter-spacing: 0.2px;
  transition: gap var(--duration-fast) var(--ease-out);
}

.project-link::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

.project-link:hover { gap: 10px; }


/* ─────────────────────────────────────────────────────────────
   14. CONTACT
───────────────────────────────────────────────────────────────*/

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  max-width: 840px;
  align-items: start;
  padding-bottom: 40px;
}

@media (max-width: 900px) {
  .contact-grid { 
    grid-template-columns: 1fr; 
    gap: 48px; 
  }
  
}

address {
  font-style: normal;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info-item:last-child { margin-bottom: 0; }

.contact-icon-box {
  width: 48px;
  height: 48px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  flex-shrink: 0;
  transition: border-color var(--duration-fast);
}

.contact-info-item:hover .contact-icon-box {
  border-color: var(--clr-border-hover);
}

.contact-info-title {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--clr-text-muted);
  margin-bottom: 4px;
}

.contact-info-value {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--clr-text);
}

a.contact-info-item {
  text-decoration: none;
  color: inherit;
}

a.contact-info-item:hover .contact-info-value,
#about-copy-email-trigger:hover .contact-info-value {
  color: var(--clr-accent);
}

.contact-form-note {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 24px; 
}

.form-note-title {
  font-family: var(--font-head);
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  color: var(--clr-text);
}

.form-note-text {
  font-size: 13.5px;
  color: var(--clr-text-muted);
  line-height: 1.75;
  margin-bottom: 24px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--clr-accent);
  color: var(--clr-bg);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.3px;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition:
    background  var(--duration-fast) var(--ease-out),
    transform   var(--duration-fast) var(--ease-out),
    box-shadow  var(--duration-fast) var(--ease-out);
}

.cta-btn:hover {
  background: var(--clr-accent-dim);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.cta-btn:active { transform: translateY(0); }

.copy-trigger { cursor: pointer; }


/* ─────────────────────────────────────────────────────────────
   15. UTILITIES
───────────────────────────────────────────────────────────────*/

/* Visually hidden (a11y) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}


/* ─────────────────────────────────────────────────────────────
   16. RESPONSIVE OVERRIDES
───────────────────────────────────────────────────────────────*/

@media (max-width: 768px) {

  .main        { padding-top: 56px; }
  .mobile-nav { 
    display: flex; 
    flex-direction: row-reverse; 
    justify-content: space-between;
    padding: 0 20px;
    align-items: center;
  }

  .sidebar {
    display:          flex;
    flex-direction:  column;
    align-items:      center;
    position:         fixed;
    top:              56px;                             
    left:             calc(-1 * var(--sidebar-width));  
    right:            auto;
    height:           calc(100vh  - 56px);              
    height:           calc(100dvh - 56px);              
    overflow-y:       auto;
    overflow-x:       hidden;
    -webkit-overflow-scrolling: touch;
    padding:          28px 20px max(72px, calc(40px + env(safe-area-inset-bottom)));
    background:       var(--clr-surface);
    border-right:     1px solid var(--clr-border);
    border-left:      none;
    box-shadow:       var(--shadow-lg);
    z-index:          150;
    transition:       left var(--duration-base) var(--ease-out);
  }

  .sidebar.open { 
    left: 0; 
    right: auto;
  }

  .avatar-fallback,
  .profile-avatar { order: 1; }
  .sidebar-name   { order: 1; }
  .sidebar-role   { order: 1; margin-bottom: 32px; }

  .sidebar-nav {
    order:        2;
    width:        100%;
    margin-top:   0;   
    margin-bottom:32px;  
  }

  .social-row {
    order:      3;
    margin-top: 0;      
  }

  .contact-list    { display: none; }
  .sidebar-divider { display: none; }

  .avatar-fallback,
  .profile-avatar {
    flex-shrink:     0;
    width:           112px;
    height:          112px;
    min-width:       112px;
    min-height:      112px;
    border-radius:   50%;
    overflow:        hidden;
    align-self:      center;
    display:         flex;
    align-items:     center;
    justify-content: center;
  }

  .profile-avatar {
    object-fit:      cover;
    object-position: center top;
  }

  section[data-page]  { padding: 40px 20px; min-height: auto; }
  .services-grid      { grid-template-columns: 1fr; }
  .projects-grid      { grid-template-columns: 1fr; }

}

@media (min-width: 769px) {
  .sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    min-height: 100vh;
    border-right: 1px solid var(--clr-border);
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  :root { --sidebar-width: 250px; }
  section { padding: 56px 40px; }
}

@media (min-width: 901px) {
  .contact-form-note {
    margin-top: -115px; 
  }
}

@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1280px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}


.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 4px;
}


.cf-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 2px; 
}
 
.cf-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  display: block;
}
 
.cf-input {
  width: 100%;
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: #ffffff;
  outline: none;
  transition:
    border-color var(--duration-fast) var(--ease-out),
    background   var(--duration-fast) var(--ease-out),
    box-shadow   var(--duration-fast) var(--ease-out);
  resize: vertical;
}
 
.cf-input::placeholder {
  color: var(--clr-text-muted);
  opacity: 0.6;
}
 
.cf-input:focus {
  border-color: var(--clr-accent);
  background: var(--clr-surface3);
  box-shadow: 0 0 0 3px var(--clr-accent-bg);
}
 
.cf-input:hover:not(:focus) {
  border-color: var(--clr-border-hover);
}
 
.cf-input:invalid:not(:placeholder-shown) {
  border-color: rgba(220, 80, 80, 0.55);
}
 
.cf-textarea {
  min-height: 70px;
  line-height: 1.65;
}
 
.cf-submit {
  align-self: flex-start;
  position: relative;
  min-width: 160px;
  justify-content: center;
  gap: 10px;
}
 
.cf-spinner {
  display: none;
  flex-shrink: 0;
  animation: cfSpin 0.75s linear infinite;
}
 
@keyframes cfSpin {
  to { transform: rotate(360deg); }
}
 
.cf-submit.cf-loading {
  opacity: 0.75;
  cursor: not-allowed;
  transform: none;     
  box-shadow: none;
}
 
.cf-submit.cf-loading:hover {
  transform: none;
  box-shadow: none;
}
 
.cf-feedback {
  display: none;         
  font-size: var(--text-sm);
  line-height: 1.6;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
}
 
.cf-feedback--visible {
  display: block;
}
 
.cf-feedback--success {
  color: #7dd9a8;
  background: rgba(125, 217, 168, 0.08);
  border-color: rgba(125, 217, 168, 0.25);
}
 
.cf-feedback--error {
  color: #e87b7b;
  background: rgba(232, 123, 123, 0.08);
  border-color: rgba(232, 123, 123, 0.25);
}
 
@media (max-width: 768px) {
  .cf-submit { align-self: stretch; } 
}

@media print {
  .mobile-nav, .sidebar-nav { display: none; }
  .sidebar { position: static; border: none; }
  section[data-page] { display: block !important; min-height: auto; }
}