/* ==========================================================================
   MYDEV PORTFOLIO - SAMPAH FRANCIS
   Raw CSS Design System with Native Light/Dark Mode & Responsive Architecture
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. COLOR SCHEME & DESIGN TOKENS (CSS VARIABLES)
   -------------------------------------------------------------------------- */
:root {
  /* Default: Dark Theme Tokens */
  color-scheme: dark;

  --bg-base: #0e0e0e;
  --bg-surface-low: #131313;
  --bg-surface-container: #1a1a1a;
  --bg-surface-high: #20201f;
  --bg-surface-highest: #262626;

  --text-primary: #ffffff;
  --text-variant: #adaaaa;
  --text-muted: #767575;

  --color-primary: #a7a5ff;
  --color-primary-dim: #645efb;
  --color-on-primary: #000000;
  
  --color-secondary: #34b5fa;
  --color-secondary-dim: #17a8ec;

  --color-tertiary: #ff9dd1;
  --color-error: #ff6e84;

  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(167, 165, 255, 0.25);

  --shadow-nav: 0px 20px 40px rgba(0, 0, 0, 0.4);
  --shadow-card: 0px 10px 30px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0px 0px 25px rgba(100, 94, 251, 0.25);

  --nav-bg: rgba(14, 14, 14, 0.85);
  --glass-bg: rgba(38, 38, 38, 0.5);

  --hero-glow: radial-gradient(circle at 50% 50%, rgba(100, 94, 251, 0.12) 0%, rgba(14, 14, 14, 0) 70%);

  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-full: 9999px;

  --font-headline: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'Fira Code', monospace, sans-serif;
}

/* Light Theme Overrides */
[data-theme="light"] {
  color-scheme: light;

  --bg-base: #ffffff;
  --bg-surface-low: #f8fafc;
  --bg-surface-container: #f1f5f9;
  --bg-surface-high: #ffffff;
  --bg-surface-highest: #e2e8f0;

  --text-primary: #0f172a;
  --text-variant: #475569;
  --text-muted: #94a3b8;

  --color-primary: #4f46e5;
  --color-primary-dim: #4338ca;
  --color-on-primary: #ffffff;

  --color-secondary: #0284c7;
  --color-secondary-dim: #0369a1;

  --color-tertiary: #db2777;
  --color-error: #dc2626;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-highlight: rgba(79, 70, 229, 0.3);

  --shadow-nav: 0px 10px 30px rgba(0, 0, 0, 0.05);
  --shadow-card: 0px 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0px 0px 25px rgba(79, 70, 229, 0.15);

  --nav-bg: rgba(255, 255, 255, 0.9);
  --glass-bg: rgba(241, 245, 249, 0.8);

  --hero-glow: radial-gradient(circle at 50% 50%, rgba(79, 70, 229, 0.06) 0%, rgba(255, 255, 255, 0) 70%);
}

/* --------------------------------------------------------------------------
   2. GLOBAL RESET & BASE STYLES
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.35s ease, color 0.35s ease;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

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

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}

/* Container */
.container {
  max-width: 80rem; /* 1280px */
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

/* Typography Utility Classes */
.font-headline {
  font-family: var(--font-headline);
}

.font-body {
  font-family: var(--font-body);
}

.font-mono {
  font-family: var(--font-mono);
}

/* Accent Text */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-tertiary { color: var(--color-tertiary); }
.text-variant { color: var(--text-variant); }

/* Section Title Pattern */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-headline);
  font-size: clamp(1.35rem, 3vw + 0.5rem, 1.75rem);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 2rem;
}

.section-tag::before {
  content: '';
  width: 2.5rem;
  height: 2px;
  background-color: var(--color-primary);
  display: inline-block;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   3. NAVIGATION BAR & THEME TOGGLE (RESPONSIVE)
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 5rem;
  z-index: 1000;
  background-color: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-nav);
  transition: background-color 0.35s ease, border-color 0.35s ease;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.brand-logo {
  font-family: var(--font-headline);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.brand-accent {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-family: var(--font-headline);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-link {
  color: var(--text-variant);
  transition: color 0.25s ease;
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Theme Switcher Button */
.theme-toggle-btn {
  background: var(--bg-surface-highest);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.theme-toggle-btn:hover {
  background-color: var(--bg-surface-container);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

/* Buttons */
.btn-primary {
  background-color: var(--color-primary-dim);
  color: var(--color-on-primary);
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 14px rgba(100, 94, 251, 0.25);
  white-space: nowrap;
  font-size: clamp(0.85rem, 1.5vw + 0.5rem, 1rem);
}

.btn-primary:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--border-highlight);
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  white-space: nowrap;
  font-size: clamp(0.85rem, 1.5vw + 0.5rem, 1rem);
}

.btn-outline:hover {
  background-color: var(--glass-bg);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* Mobile Hamburger Toggle Button */
.mobile-menu-btn {
  display: none;
  background: var(--bg-surface-highest);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.mobile-menu-btn:hover {
  border-color: var(--color-primary);
}

/* Mobile Nav Drawer Popup */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 5rem;
  left: 0;
  right: 0;
  background-color: var(--bg-surface-low);
  border-bottom: 1px solid var(--border-color);
  padding: 1.75rem 1.5rem;
  flex-direction: column;
  gap: 1rem;
  z-index: 999;
  box-shadow: var(--shadow-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  animation: drawerSlideDown 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.mobile-drawer.open {
  display: flex;
}

.mobile-nav-link {
  font-family: var(--font-headline);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-variant);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--text-primary);
  background-color: var(--bg-surface-highest);
}

@keyframes drawerSlideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   4. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 7rem;
  padding-bottom: 5rem;
  overflow: hidden;
}

.hero-glow-bg {
  position: absolute;
  inset: 0;
  background: var(--hero-glow);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 10;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background-color: var(--bg-surface-highest);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: clamp(0.75rem, 1.5vw, 0.85rem);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-headline);
  font-size: clamp(2.1rem, 4vw + 1rem, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: clamp(0.95rem, 1.5vw + 0.5rem, 1.1rem);
  color: var(--text-variant);
  margin-bottom: 2.5rem;
  max-width: 38rem;
  line-height: 1.75;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.hero-portrait-card {
  position: relative;
  width: 100%;
}

.portrait-frame {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--bg-surface-high);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  position: relative;
  width: 100%;
}

.portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: filter 0.6s ease, transform 0.6s ease;
}

.portrait-frame:hover .portrait-img {
  transform: scale(1.03);
}

.portrait-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-base) 0%, transparent 60%);
  opacity: 0.4;
}

.code-badge {
  position: absolute;
  bottom: -1.5rem;
  left: -1.5rem;
  background-color: var(--bg-surface-highest);
  padding: 1.1rem 1.35rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
}

.code-badge-dots {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}

.dot {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: var(--radius-full);
}
.dot-red { background-color: var(--color-error); }
.dot-yellow { background-color: var(--color-secondary); }
.dot-green { background-color: var(--color-primary); }

.code-badge-text {
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 1.5vw, 0.85rem);
  color: var(--color-secondary);
}

/* --------------------------------------------------------------------------
   5. ABOUT / STORY SECTION
   -------------------------------------------------------------------------- */
.about-section {
  padding: 7rem 0;
  background-color: var(--bg-surface-low);
  transition: background-color 0.35s ease;
}

.about-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 4rem;
  align-items: start;
}

.story-text {
  font-size: clamp(0.95rem, 1.5vw + 0.5rem, 1.1rem);
  color: var(--text-variant);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  line-height: 1.8;
}

.value-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.value-card {
  background-color: var(--bg-surface-high);
  padding: 1.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all 0.3s ease;
}

.value-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.value-icon {
  font-size: 2.2rem;
  margin-bottom: 0.6rem;
}

.value-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-variant);
}

.value-title {
  font-family: var(--font-headline);
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0.25rem;
}

.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.tech-pill {
  padding: 0.45rem 1.1rem;
  background-color: var(--bg-surface-highest);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  transition: all 0.25s ease;
}

.tech-pill:hover {
  background-color: var(--color-primary-dim);
  color: var(--color-on-primary);
}

/* --------------------------------------------------------------------------
   6. SELECTED WORKS / PROJECTS SECTION
   -------------------------------------------------------------------------- */
.projects-section {
  padding: 7rem 0;
  background-color: var(--bg-base);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3.5rem;
}

.section-header-title {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 3.5vw + 0.5rem, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.section-header-desc {
  color: var(--text-variant);
  max-width: 32rem;
  font-size: clamp(0.9rem, 1.5vw, 1rem);
}

.section-number {
  font-family: var(--font-headline);
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--bg-surface-highest);
  line-height: 1;
  user-select: none;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.25rem;
}

.project-card {
  background-color: var(--bg-surface-high);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-card);
}

.project-img-wrapper {
  height: 14rem;
  position: relative;
  overflow: hidden;
  background-color: var(--bg-surface-highest);
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-img {
  transform: scale(1.05);
}

.project-placeholder-graphic {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-surface-container) 0%, var(--bg-surface-highest) 100%);
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem;
  text-align: center;
}

.project-placeholder-icon {
  font-size: 2.75rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  opacity: 0.8;
}

.project-placeholder-text {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-variant);
}

.project-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.project-tag {
  font-size: 0.65rem;
  font-family: var(--font-headline);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--bg-surface-highest);
  color: var(--text-primary);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
}

.project-title {
  font-family: var(--font-headline);
  font-size: clamp(1.15rem, 2vw + 0.5rem, 1.35rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.project-desc {
  font-size: clamp(0.85rem, 1.5vw, 0.92rem);
  color: var(--text-variant);
  margin-bottom: 1.5rem;
  line-height: 1.65;
  flex-grow: 1;
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: gap 0.25s ease;
  padding: 0;
  align-self: flex-start;
}

.btn-link:hover {
  gap: 0.75rem;
}

/* --------------------------------------------------------------------------
   7. SKILLS & TOOLKIT SECTION
   -------------------------------------------------------------------------- */
.skills-section {
  padding: 7rem 0;
  background-color: var(--bg-surface-low);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.skill-card {
  background-color: var(--bg-surface-high);
  padding: 2.25rem 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.skill-card:hover {
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-card);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.skill-icon-badge {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.skill-icon-primary { background: rgba(167, 165, 255, 0.12); color: var(--color-primary); }
.skill-icon-secondary { background: rgba(52, 181, 250, 0.12); color: var(--color-secondary); }
.skill-icon-tertiary { background: rgba(255, 157, 209, 0.12); color: var(--color-tertiary); }

.skill-title {
  font-family: var(--font-headline);
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--text-primary);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.skill-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-variant);
  margin-bottom: 0.4rem;
}

.progress-track {
  height: 0.35rem;
  background-color: var(--bg-surface-highest);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.fill-primary { background-color: var(--color-primary); }
.fill-secondary { background-color: var(--color-secondary); }
.fill-tertiary { background-color: var(--color-tertiary); }

/* --------------------------------------------------------------------------
   8. EXPERIENCE / JOURNEY SECTION
   -------------------------------------------------------------------------- */
.experience-section {
  padding: 7rem 0;
  background-color: var(--bg-base);
}

.timeline {
  position: relative;
  border-left: 2px solid var(--border-color);
  margin-left: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.timeline-item {
  position: relative;
  padding-left: 2.5rem;
}

.timeline-node {
  position: absolute;
  left: -0.55rem;
  top: 0.25rem;
  width: 1rem;
  height: 1rem;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface-highest);
  border: 2px solid var(--bg-base);
  transition: all 0.3s ease;
}

.timeline-node.active {
  background-color: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary);
}

.timeline-item:hover .timeline-node {
  transform: scale(1.3);
  background-color: var(--color-secondary);
}

.timeline-date {
  font-size: 0.75rem;
  font-family: var(--font-headline);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.timeline-role {
  font-family: var(--font-headline);
  font-size: clamp(1.1rem, 2vw + 0.5rem, 1.3rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 0.2rem;
  line-height: 1.3;
}

.timeline-company {
  font-size: clamp(0.85rem, 1.5vw, 0.95rem);
  font-weight: 600;
  color: var(--color-secondary);
  margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   9. EDUCATION SECTION (FULLY RESPONSIVE)
   -------------------------------------------------------------------------- */
.education-section {
  padding: 7rem 0;
  background-color: var(--bg-surface-low);
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.education-card {
  background-color: var(--bg-surface-high);
  padding: 2.25rem 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  display: flex;
  align-items: flex-start;
  gap: 1.35rem;
  min-width: 0; /* Prevents flex items from overflowing container */
}

.education-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.education-icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-md);
  background-color: rgba(100, 94, 251, 0.12);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.education-degree {
  font-family: var(--font-headline);
  font-size: clamp(1.05rem, 2vw + 0.3rem, 1.2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  line-height: 1.35;
  overflow-wrap: break-word;
  word-break: break-word;
}

.education-school {
  font-size: clamp(0.85rem, 1.5vw, 0.95rem);
  color: var(--color-secondary);
  margin-bottom: 0.4rem;
  line-height: 1.4;
  overflow-wrap: break-word;
}

.education-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   10. CONTACT SECTION (COMPACT & RESPONSIVE SHOWCASE)
   -------------------------------------------------------------------------- */
.contact-section {
  padding: 6rem 0;
  background-color: var(--bg-base);
}

.contact-card-compact {
  background-color: var(--bg-surface-high);
  border-radius: var(--radius-lg);
  padding: 3rem 3.5rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  width: 100%;
}

.contact-bg-glow {
  position: absolute;
  top: -4rem;
  right: -4rem;
  width: 24rem;
  height: 24rem;
  background: radial-gradient(circle, rgba(167, 165, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.contact-compact-header {
  margin-bottom: 2.5rem;
  position: relative;
  z-index: 10;
}

.contact-heading {
  font-family: var(--font-headline);
  font-size: clamp(1.85rem, 3.5vw + 0.5rem, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.contact-subtext {
  font-size: clamp(0.92rem, 1.5vw, 1rem);
  color: var(--text-variant);
  line-height: 1.65;
  max-width: 44rem;
}

/* Contact Pills Grid */
.contact-pills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  position: relative;
  z-index: 10;
}

.contact-pill-item {
  background-color: var(--bg-surface-low);
  padding: 1.15rem 1.35rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all 0.3s ease;
  color: inherit;
  text-decoration: none;
  min-width: 0; /* Prevents overflow inside flex parent */
  width: 100%;
}

.contact-pill-item:hover {
  border-color: var(--border-highlight);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  background-color: var(--bg-surface-highest);
}

.pill-icon-wrapper {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-blue { background: rgba(52, 181, 250, 0.12); color: var(--color-secondary); }
.icon-indigo { background: rgba(167, 165, 255, 0.12); color: var(--color-primary); }
.icon-rose { background: rgba(255, 157, 209, 0.12); color: var(--color-tertiary); }
.icon-green { background: rgba(34, 197, 94, 0.12); color: #22c55e; }

.pill-info {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  min-width: 0; /* Enables text truncation / wrapping inside flex item */
}

.pill-label {
  font-size: 0.68rem;
  font-family: var(--font-headline);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.pill-value {
  font-family: var(--font-headline);
  font-size: clamp(0.85rem, 1.8vw, 1.05rem);
  font-weight: 600;
  color: var(--text-primary);
  overflow-wrap: anywhere;
  word-break: break-word;
  white-space: normal;
}

.pill-arrow {
  font-size: 1.1rem;
  color: var(--color-primary);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.contact-pill-item:hover .pill-arrow {
  transform: translate(2px, -2px);
}

.status-indicator-dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: var(--radius-full);
  background-color: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   11. MODAL DIALOG (PROJECT DETAILS)
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  display: flex;
  opacity: 1;
}

.modal-box {
  background-color: var(--bg-surface-high);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  max-width: 46rem;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-nav);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--bg-surface-highest);
  border: none;
  color: var(--text-primary);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.modal-close-btn:hover {
  background-color: var(--color-error);
  color: #fff;
}

.modal-title {
  font-family: var(--font-headline);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  padding-right: 2rem;
  line-height: 1.25;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.modal-body {
  color: var(--text-variant);
  line-height: 1.75;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  font-size: clamp(0.88rem, 1.5vw, 0.98rem);
}

/* --------------------------------------------------------------------------
   12. FOOTER
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--bg-surface-low);
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-brand {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.88rem;
  color: var(--text-variant);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   13. COMPREHENSIVE RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .projects-grid,
  .education-grid,
  .contact-pills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-number {
    display: none;
  }
}

/* Navbar Switch Breakpoint: 900px */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .btn-primary.desktop-only {
    display: none;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1.25rem;
  }

  .about-section,
  .projects-section,
  .skills-section,
  .experience-section,
  .education-section {
    padding: 4.5rem 0;
  }

  .contact-section {
    padding: 4rem 0;
  }

  .projects-grid,
  .skills-grid,
  .education-grid,
  .contact-pills-grid,
  .value-cards-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .contact-card-compact {
    padding: 2.25rem 1.5rem;
  }

  .timeline {
    margin-left: 0.75rem;
    gap: 2.25rem;
  }

  .timeline-item {
    padding-left: 2rem;
  }

  .modal-box {
    padding: 2rem 1.25rem;
  }

  .footer .container {
    flex-direction: column;
    gap: 1.25rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero-section {
    padding-top: 6rem;
    padding-bottom: 3.5rem;
  }

  .portrait-frame {
    max-height: 20rem;
  }

  .code-badge {
    position: relative;
    bottom: 0;
    left: 0;
    right: 0;
    margin-top: 1rem;
    padding: 0.85rem 1rem;
  }

  .education-card {
    padding: 1.35rem 1rem;
    gap: 1rem;
    flex-direction: row;
    align-items: flex-start;
  }

  .education-icon {
    width: 2.6rem;
    height: 2.6rem;
    font-size: 1.15rem;
  }

  .contact-card-compact {
    padding: 1.65rem 1rem;
    border-radius: var(--radius-md);
  }

  .contact-pill-item {
    padding: 0.9rem 1rem;
    gap: 0.75rem;
  }

  .pill-icon-wrapper {
    width: 2.4rem;
    height: 2.4rem;
  }

  .pill-value {
    font-size: 0.88rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-outline {
    width: 100%;
    text-align: center;
  }
}