/* ============================================
   MODERN PAPER & GAMIFIED AESTHETIC v2
   — Sticky Glass Nav, Rhythm, Animations
   ============================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;700&family=JetBrains+Mono:wght@400;500;700&family=Playfair+Display:wght@400;700;900&display=swap');

:root {
  --paper: #F9F7F2;
  --paper-shadow: #E5E1D8;
  --paper-border: #DAD6CE;
  --paper-dark: #2A2A28;
  --accent: #7C9A82;
  --accent-hover: #6B8A72;
  --text: #3A3A38;
  --text-muted: #6E6E6A;
  --card-bg: #FFFFFF;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --font-handwriting: 'Caveat', cursive;
  --shadow-paper: 4px 4px 0px var(--paper-shadow);
  --radius: 2px;
  --transition: 0.3s ease-in-out;
  --content-max: 1200px;
  --section-pad: 4rem;
}

/* Dark Mode */
[data-theme="dark"] {
  --paper: #1a1a1a;
  --paper-shadow: #2d2d2d;
  --paper-border: #3a3a3a;
  --paper-dark: #f5f5f5;
  --text: #e0e0e0;
  --text-muted: #a0a0a0;
  --card-bg: #242424;
}

[data-theme="dark"] body::before {
  opacity: 0.02;
}

[data-theme="dark"] .site-nav {
  background: rgba(26, 26, 26, 0.92);
  border-bottom-color: var(--paper-border);
}

[data-theme="dark"] .hero {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%) !important;
}

[data-theme="dark"] .site-footer {
  background: #0a0a0a;
}

[data-theme="dark"] .p-card {
  border-color: var(--paper-border) !important;
}

[data-theme="dark"] .education-card {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
}

[data-theme="dark"] #back-to-top {
  background: rgba(30, 30, 30, 0.8);
}

[data-theme="dark"] .p-card__title,
[data-theme="dark"] .p-card p {
  color: var(--text);
}

[data-theme="dark"] .stationery-form input,
[data-theme="dark"] .stationery-form textarea {
  border-bottom-color: #555 !important;
  color: var(--text);
}

[data-theme="dark"] .stationery-form textarea {
  border-left-color: #444 !important;
}

[data-theme="dark"] .stationery-form input::placeholder,
[data-theme="dark"] .stationery-form textarea::placeholder {
  color: #777;
}

[data-theme="dark"] .stationery-form label {
  color: var(--text-muted);
}

[data-theme="dark"] .contact-header p {
  color: var(--text-muted);
}

[data-theme="dark"] .project-tag {
  background: #333 !important;
  border-color: #444;
  color: var(--text-muted);
}

[data-theme="dark"] .education-card__content h3 {
  color: var(--paper) !important;
}

[data-theme="dark"] .site-nav__logo-title {
  color: var(--text);
}

/* --- Smooth Scrolling --- */
html {
  scroll-behavior: smooth;
}


/* --- Base / Paper Background --- */
html, body {
  background-color: var(--paper);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  overflow-x: hidden;
}

/* Grain texture overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* --- XP Scroll Progress Bar --- */
#xp-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent);
  z-index: 10001;
  transition: width 0.05s linear;
  box-shadow: 0 0 8px rgba(124, 154, 130, 0.4);
}

#xp-bar::after {
  content: '';
  position: absolute;
  right: 0;
  top: -2px;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(124, 154, 130, 0.6);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading) !important;
  color: var(--paper-dark);
  letter-spacing: -0.02em;
}

h1 { font-weight: 900; }
h2 { font-weight: 700; font-size: 2.2rem; }
h3 { font-weight: 700; }

label,
.project-tag,
.skill-list li,
code, pre {
  font-family: var(--font-mono) !important;
  font-size: 0.85rem;
}

/* Global focus — replace blue outlines with sage glow */
*:focus {
  outline: none;
}

*:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(124, 154, 130, 0.4);
  border-radius: var(--radius);
}

/* ============================================
   1. STICKY GLASSMORPHISM NAVBAR
   ============================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 10000;
  background: rgba(249, 247, 242, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--paper-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
  padding: 0 1.5rem;
}

.site-nav__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

/* --- Logo --- */
.site-nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--paper-dark);
}

.site-nav__logo-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: var(--radius);
  letter-spacing: 0.02em;
}

.site-nav__logo-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--paper-dark);
}

/* --- Desktop Nav Links --- */
.site-nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text);
  text-decoration: none;
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition);
}

/* Pencil-line underline on hover */
.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 10%;
  width: 0%;
  height: 2px;
  background: var(--paper-dark);
  border-radius: 1px;
  transition: width var(--transition);
  /* Slightly irregular — skewed ends like a pencil stroke */
  clip-path: polygon(2% 0%, 100% 15%, 97% 100%, 0% 85%);
}

.site-nav__link:hover {
  color: var(--paper-dark);
}

.site-nav__link:hover::after {
  width: 80%;
}

/* --- Stamp CTA (Contact Me) --- */
.site-nav__link--stamp {
  background: var(--paper-dark);
  color: var(--paper) !important;
  padding: 0.4rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--paper-dark);
  transform: rotate(-1deg);
  box-shadow: 1px 1px 0 var(--paper-shadow);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.site-nav__link--stamp::after {
  display: none; /* No pencil underline on stamp */
}

.site-nav__link--stamp:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff !important;
  transform: rotate(0deg) translate(1px, 1px);
  box-shadow: none;
}

/* --- Focus States (replace blue outlines) --- */
.site-nav__link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(124, 154, 130, 0.4);
  border-radius: var(--radius);
}

.site-nav__link--stamp:focus-visible {
  box-shadow: 0 0 0 3px rgba(124, 154, 130, 0.4);
}

/* --- Theme Toggle Button --- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--paper-border);
  border-radius: 50%;
  cursor: pointer;
  color: var(--text);
  transition: all var(--transition);
  margin-left: 0.5rem;
}

.theme-toggle:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.theme-toggle__sun {
  display: block;
}

.theme-toggle__moon {
  display: none;
}

[data-theme="dark"] .theme-toggle__sun {
  display: none;
}

[data-theme="dark"] .theme-toggle__moon {
  display: block;
}

/* --- Hamburger (hidden on desktop) --- */
.site-nav__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 4px;
  z-index: 10;
}

.site-nav__hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--paper-dark);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hamburger open state */
.site-nav__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-nav__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.site-nav__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* --- Mobile (<768px) --- */
@media (max-width: 767px) {
  .site-nav__hamburger {
    display: flex;
  }

  .site-nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(249, 247, 242, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--paper-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 1rem 1.5rem;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }

  .site-nav__links.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav__link {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--paper-shadow);
    font-size: 0.85rem;
  }

  .site-nav__link:last-child {
    border-bottom: none;
  }

  .site-nav__link--stamp {
    margin-top: 0.5rem;
    text-align: center;
    padding: 0.6rem 1rem;
    transform: rotate(0deg); /* No rotation on mobile */
  }

  .site-nav__link::after {
    display: none; /* No pencil line on mobile */
  }

  .theme-toggle {
    margin: 0.5rem 0 0 0;
    align-self: center;
  }
}

/* ============================================
   2. SPACING, RHYTHM & MAX-WIDTH
   ============================================ */

/* All content containers capped at 1200px */
.row {
  max-width: var(--content-max) !important;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Consistent section vertical padding */
.p-strip.is-deep {
  padding: var(--section-pad) 0 !important;
}

/* Strips / Sections */
.p-strip {
  background-color: var(--paper);
  position: relative;
}

.about-section {
  background: var(--card-bg);
  margin: 1rem auto;
  max-width: min(90%, var(--content-max));
  border-radius: var(--radius);
  box-shadow: var(--shadow-paper);
}

.contact-section {
  background: var(--card-bg);
  margin: 1rem auto;
  max-width: min(90%, var(--content-max));
  border-radius: var(--radius);
  box-shadow: var(--shadow-paper);
}

#projects {
  margin: 0 auto;
  max-width: min(90%, var(--content-max));
  padding-top: 2rem !important;
}

/* Projects grid — uniform gaps */
#projects .row + .row {
  margin-top: 2rem;
}

#projects .col-4 {
  margin-bottom: 0;
  padding-bottom: 0;
}

/* Force equal card heights within a row */
#projects .row {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

#projects .col-4 {
  flex: 1 1 calc(33.333% - 2rem);
  max-width: calc(33.333% - 1.34rem);
  display: flex;
}

/* Section headings spacing */
#projects > .row:first-child {
  margin-bottom: 1rem;
  display: block;
}

#projects h2,
#about h2 {
  margin-bottom: 0.5rem;
}

/* ============================================
   3. FADE-IN SCROLL ANIMATIONS
   ============================================ */

/* Initial hidden state */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* Visible state (triggered by Intersection Observer) */
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delay for cards */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============================================
   4. HERO
   ============================================ */
.hero {
  background: var(--paper-dark) !important;
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  box-shadow: 0 6px 0 var(--paper-shadow);
}

.hero h1 {
  font-family: var(--font-heading) !important;
  font-size: 3.5rem;
  color: var(--paper) !important;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero h1 strong {
  color: var(--accent);
}

.hero p {
  color: var(--paper);
  opacity: 0.8;
}

.hero p.subtitle {
  font-family: var(--font-mono) !important;
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 1;
  margin-bottom: 2rem;
}

/* ============================================
   5. BUTTONS (0.3s transitions)
   ============================================ */
.p-button--positive,
button[class*="p-button--positive"] {
  background-color: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #fff !important;
  border-radius: var(--radius);
  font-family: var(--font-mono) !important;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  box-shadow: 3px 3px 0 var(--paper-shadow);
  transition: all var(--transition);
}

.p-button--positive:hover,
button[class*="p-button--positive"]:hover {
  background-color: var(--accent-hover) !important;
  color: #fff !important;
  transform: translate(2px, 2px);
  box-shadow: none;
}

.p-button {
  border-radius: var(--radius);
  font-family: var(--font-mono) !important;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-color: var(--accent) !important;
  color: var(--accent) !important;
  box-shadow: 3px 3px 0 var(--paper-shadow);
  transition: all var(--transition);
}

.p-button:hover {
  background-color: var(--accent) !important;
  color: white !important;
  transform: translate(2px, 2px);
  box-shadow: none;
}

.hero .p-button.is-inline {
  border-color: var(--paper) !important;
  color: var(--paper) !important;
  box-shadow: 3px 3px 0 rgba(255,255,255,0.15);
}

.hero .p-button.is-inline:hover {
  background: var(--paper) !important;
  color: var(--paper-dark) !important;
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* ============================================
   6. CARDS — INVENTORY ITEMS (0.3s transitions)
   ============================================ */
.p-card {
  background: var(--card-bg);
  border: 1px solid var(--paper-shadow) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-paper);
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  padding: 1.5rem;
  width: 100%;
  display: flex;
  flex-direction: column;
}

.p-card .p-card__content {
  flex: 1;
}

.p-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}

.p-card:hover {
  transform: translate(2px, 2px) rotate(-0.5deg);
  box-shadow: none;
}

.p-card:hover::before {
  opacity: 1;
}

.p-card__title {
  font-family: var(--font-heading) !important;
  font-size: 1.2rem !important;
  margin-bottom: 0.75rem;
}

/* --- Project Tags --- */
.project-tag {
  display: inline-block;
  background: var(--paper) !important;
  border: 1px solid var(--paper-shadow);
  color: var(--text-muted);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius);
  font-family: var(--font-mono) !important;
  font-size: 0.7rem !important;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 0.4rem;
  margin-bottom: 0.4rem;
  transition: all var(--transition);
}

.p-card:hover .project-tag {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Skill Tags --- */
.skill-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-list li {
  background: var(--paper-dark) !important;
  color: var(--paper) !important;
  border-radius: var(--radius);
  font-family: var(--font-mono) !important;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.4rem 0.9rem;
  box-shadow: 2px 2px 0 var(--paper-shadow);
  transition: all var(--transition);
}

.skill-list li:hover {
  background: var(--accent) !important;
  transform: translate(1px, 1px);
  box-shadow: none;
}

/* ============================================
   7. STATIONERY FORM
   ============================================ */

/* Contact inner container */
.contact-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.contact-header {
  margin-bottom: 3rem;
}

.contact-header h2 {
  margin-bottom: 0.5rem;
}

.contact-header p {
  color: var(--text-muted);
}

/* Form structure */
.stationery-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.form-row {
  display: flex;
  flex-direction: column;
}

.form-row--two-col {
  flex-direction: row;
  gap: 2rem;
}

.form-row--two-col .form-field {
  flex: 1;
}

.form-row--actions {
  align-items: flex-end;
}

.form-field {
  display: flex;
  flex-direction: column;
}

/* Labels */
.stationery-form label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-size: 0.7rem;
  margin-bottom: 0.5rem;
  text-align: left;
}

/* Notepad-line inputs */
.stationery-form input[type="text"],
.stationery-form input[type="email"],
.stationery-form textarea {
  background: transparent !important;
  border: none !important;
  border-bottom: 1px solid #CCC !important;
  border-radius: 0 !important;
  padding: 0.6rem 0;
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--text);
  transition: border-color var(--transition), border-width var(--transition);
  box-shadow: none !important;
}

.stationery-form input::placeholder,
.stationery-form textarea::placeholder {
  font-family: var(--font-heading);
  font-style: italic;
  color: #C0BDB5;
  opacity: 1;
}

/* Focus state — accent line thickens */
.stationery-form input[type="text"]:focus,
.stationery-form input[type="email"]:focus,
.stationery-form textarea:focus {
  border-bottom-color: var(--accent) !important;
  border-bottom-width: 2px !important;
  outline: none;
  box-shadow: none !important;
}

/* Textarea specific — add subtle left line like a notepad margin */
.stationery-form textarea {
  resize: vertical;
  min-height: 120px;
  border-left: 2px solid #EAE7E0 !important;
  padding-left: 1rem;
}

.stationery-form textarea:focus {
  border-left-color: rgba(124, 154, 130, 0.3) !important;
}

/* --- Stamp Button (Send) --- */
.stamp-button {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--paper-dark);
  color: var(--paper);
  border: 2px solid var(--paper-dark);
  border-radius: var(--radius);
  padding: 0.75rem 2rem;
  cursor: pointer;
  transform: rotate(-1deg);
  box-shadow: 3px 3px 0 var(--paper-shadow);
  transition: all var(--transition);
}

.stamp-button:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: rotate(0deg) translate(1px, 1px);
  box-shadow: 1px 1px 0 var(--paper-shadow);
}

.stamp-button:active {
  transform: rotate(0deg) translate(3px, 3px);
  box-shadow: none;
}

.stamp-button:focus-visible {
  box-shadow: 0 0 0 3px rgba(124, 154, 130, 0.4);
}

/* --- Thank You Note --- */
.thank-you-note {
  text-align: center;
  padding: 3rem 1rem;
}

.thank-you-note p {
  font-family: var(--font-handwriting);
  font-size: 2rem;
  color: var(--accent);
  transform: rotate(-2deg);
  line-height: 1.4;
}

/* Generic label (outside forms) */
label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-size: 0.75rem !important;
  margin-bottom: 0.4rem;
}

/* --- Mobile form adjustments --- */
@media (max-width: 767px) {
  .form-row--two-col {
    flex-direction: column;
    gap: 2rem;
  }

  .contact-inner {
    padding: 0 1rem;
  }

  .stamp-button {
    width: 100%;
    text-align: center;
  }

  .form-row--actions {
    align-items: stretch;
  }
}

/* ============================================
   8. FOOTER
   ============================================ */
.site-footer {
  background: var(--paper-dark);
  box-shadow: 0 -4px 0 var(--paper-shadow);
  padding: 2rem 0;
  text-align: center;
  color: #fff;
}

.site-footer a {
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0.75rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), opacity var(--transition);
  opacity: 0.8;
}

.site-footer a:hover {
  border-bottom-color: var(--accent);
  opacity: 1;
  color: #fff;
}

/* ============================================
   9. GLOBAL LINK COLOR
   ============================================ */
a {
  color: var(--accent);
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

/* ============================================
   10. NEGATIVE SPACE & TEXT RHYTHM
   ============================================ */
p {
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* ============================================
   11. RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  :root {
    --section-pad: 4rem;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

  .hero p.subtitle {
    font-size: 0.85rem;
  }

  .about-section,
  .contact-section,
  #projects {
    max-width: 95%;
    margin: 1rem auto;
  }

  /* Stack cards vertically on mobile */
  #projects .row {
    flex-direction: column;
    gap: 1.5rem;
  }

  #projects .col-4 {
    max-width: 100%;
    flex: 1 1 100%;
  }

  .row {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  /* Tablet: 2-column grid */
  #projects .row {
    gap: 1.5rem;
  }

  #projects .col-4 {
    flex: 1 1 calc(50% - 1.5rem);
    max-width: calc(50% - 0.75rem);
  }
}

/* ============================================
   12. EDUCATION SECTION
   ============================================ */
.education-section {
  background: var(--paper);
  margin: 1rem auto 0 auto;
  max-width: min(90%, var(--content-max));
  padding-bottom: 1rem !important;
}

.education-section h2 {
  margin-bottom: 1.5rem;
}

.education-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, var(--paper-dark) 0%, #3a3a38 100%);
  border-radius: var(--radius);
  box-shadow: var(--shadow-paper);
  overflow: hidden;
  position: relative;
}

.education-card__accent {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent);
}

.education-card__content {
  flex: 1;
  padding-left: 0.5rem;
}

.education-card__content h3 {
  margin: 0 0 0.25rem 0;
  font-size: 1.25rem;
  color: var(--paper) !important;
}

.education-card__school {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent) !important;
  margin-bottom: 0.25rem !important;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.education-card__dates {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(249, 247, 242, 0.6);
  letter-spacing: 0.03em;
  margin-bottom: 0 !important;
}

.education-card__badge {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
}

.honor-badge {
  display: inline-block;
  background: linear-gradient(135deg, #D4AF37 0%, #F4E4A6 50%, #D4AF37 100%);
  color: #2A2A28;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  transform: rotate(-2deg);
  animation: badge-shine 3s ease-in-out infinite;
  white-space: nowrap;
}

@keyframes badge-shine {
  0%, 100% {
    box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  }
  50% {
    box-shadow: 2px 2px 12px rgba(212, 175, 55, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  }
}

/* Mobile adjustments for education */
@media (max-width: 768px) {
  .education-section {
    max-width: 95%;
    margin: 1rem auto;
  }

  .education-card {
    flex-direction: column;
    text-align: center;
    padding: 1.5rem;
    gap: 1rem;
  }

  .education-card__accent {
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: 100%;
    height: 4px;
  }

  .education-card__logo {
    margin: 0;
    width: 70px;
    height: 70px;
  }

  .education-card__content {
    padding: 0;
  }

  .education-card__content h3 {
    font-size: 1.1rem;
  }

  .education-card__badge {
    padding: 0;
  }

  .honor-badge {
    transform: rotate(0deg);
  }
}

/* --- Back to Top Button --- */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--text-muted);
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), background var(--transition), color var(--transition);
  z-index: 90;
}

#back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

#back-to-top:hover {
  background: rgba(255, 255, 255, 0.35);
  color: var(--accent);
  border-color: var(--accent);
}