/* ==========================================================================
   Ombre Forest Design System - Sai Sahithya Varshini Koduru Portfolio
   Palette Tokens:
     Alabaster:       #F9F9F9
     Iron:            #DCDEDD
     Spicy Mix:       #74483F
     Masala:          #4B4643
     Masala Deep:     #2D2928
     Spicy Mix Light: #945B50
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Theme Variables & Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand Palette Colors */
  --clr-alabaster: #F9F9F9;
  --clr-iron: #DCDEDD;
  --clr-spicy-mix: #74483F;
  --clr-masala: #4B4643;
  --clr-masala-deep: #2D2928;
  --clr-spicy-mix-light: #945B50;

  /* RGB Values for Opacity Math */
  --rgb-alabaster: 249, 249, 249;
  --rgb-iron: 220, 222, 221;
  --rgb-spicy-mix: 116, 72, 63;
  --rgb-masala: 75, 70, 67;
  --rgb-masala-deep: 45, 41, 40;
  --rgb-spicy-mix-light: 148, 91, 80;

  /* Light / White Theme Mapping (Mix of Crisp White & Rich Spicy Mix Brown) */
  --bg-primary: #FAF8F6;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F3EFEA;
  --bg-surface: rgba(255, 255, 255, 0.92);

  --text-primary: #2A2422;
  --text-secondary: #4B4643;
  --text-muted: #74483F;
  --text-inverse: #FFFFFF;

  --accent: #74483F;
  --accent-light: #945B50;
  --accent-hover: #5A3730;
  --accent-gradient: linear-gradient(135deg, #74483F 0%, #945B50 100%);
  --accent-gradient-hover: linear-gradient(135deg, #945B50 0%, #74483F 100%);

  --border-color: rgba(116, 72, 63, 0.14);
  --border-subtle: rgba(116, 72, 63, 0.1);
  --border-accent: rgba(116, 72, 63, 0.35);

  --card-bg: rgba(255, 255, 255, 0.92);
  --card-border: rgba(116, 72, 63, 0.15);
  --card-hover-border: rgba(148, 91, 80, 0.5);

  --shadow-sm: 0 4px 12px rgba(116, 72, 63, 0.05);
  --shadow-md: 0 10px 28px rgba(116, 72, 63, 0.08);
  --shadow-lg: 0 18px 42px rgba(116, 72, 63, 0.12);
  --glow-shadow: 0 0 28px rgba(148, 91, 80, 0.22);
  --glow-color: rgba(148, 91, 80, 0.28);

  --header-bg: rgba(250, 248, 246, 0.88);
  --modal-backdrop-bg: rgba(42, 36, 34, 0.55);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --theme-transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;

  /* Layout Constants */
  --container-max-width: 1200px;
  --header-height: 72px;
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-pill: 9999px;
}

/* Dark Theme Overrides */
html.dark {
  --bg-primary: #1A1817;
  --bg-secondary: #24201F;
  --bg-tertiary: #2D2928;
  --bg-surface: rgba(36, 32, 31, 0.85);

  --text-primary: #F9F9F9;
  --text-secondary: #DCDEDD;
  --text-muted: #B8AFAC;
  --text-inverse: #2D2928;

  --accent: #945B50;
  --accent-light: #B87366;
  --accent-hover: #AC685C;
  --accent-gradient: linear-gradient(135deg, #945B50 0%, #74483F 100%);
  --accent-gradient-hover: linear-gradient(135deg, #B87366 0%, #945B50 100%);

  --border-color: rgba(220, 222, 221, 0.12);
  --border-subtle: rgba(220, 222, 221, 0.08);
  --border-accent: rgba(148, 91, 80, 0.5);

  --card-bg: rgba(45, 41, 40, 0.65);
  --card-border: rgba(220, 222, 221, 0.12);
  --card-hover-border: rgba(148, 91, 80, 0.5);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  --glow-shadow: 0 0 30px rgba(148, 91, 80, 0.35);
  --glow-color: rgba(148, 91, 80, 0.45);

  --header-bg: rgba(26, 24, 23, 0.85);
  --modal-backdrop-bg: rgba(10, 9, 9, 0.75);
}

/* --------------------------------------------------------------------------
   2. Base Styles & Typography
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  transition: var(--theme-transition);
}

body.modal-open {
  overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

/* --------------------------------------------------------------------------
   3. Utility Classes
   -------------------------------------------------------------------------- */
.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
  transform-style: preserve-3d;
}

/* Linear.app / Framer Cursor Spotlight Gradient */
.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(116, 72, 63, 0.12), transparent 40%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
}

html.dark .glass-card::before {
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(148, 91, 80, 0.2), transparent 40%);
}

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

.glass-card:hover {
  border-color: var(--card-hover-border);
  box-shadow: var(--shadow-lg), var(--glow-shadow);
}

.badge-pill, .core-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.825rem;
  font-weight: 600;
  background: #FFFFFF;
  color: #74483F;
  border: 1px solid rgba(116, 72, 63, 0.22);
  box-shadow: 0 2px 8px rgba(116, 72, 63, 0.06);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

html.dark .badge-pill, html.dark .core-badge {
  background: rgba(148, 91, 80, 0.22);
  color: #F8D2CC;
  border: 1px solid rgba(232, 184, 176, 0.35);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.badge-pill:hover, .core-badge:hover {
  background: #74483F;
  color: #FFFFFF;
  border-color: #74483F;
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 14px rgba(116, 72, 63, 0.3);
}

html.dark .badge-pill:hover, html.dark .core-badge:hover {
  background: #945B50;
  color: #FFFFFF;
  border-color: #F8D2CC;
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 14px rgba(148, 91, 80, 0.5);
}

.tab-btn {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(var(--rgb-masala), 0.08);
}

.tab-btn.active {
  background: var(--accent-gradient);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: var(--glow-shadow);
}

.glow-shadow {
  box-shadow: var(--glow-shadow);
}

.accent-text {
  color: var(--accent);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.accent-gradient {
  background: var(--accent-gradient);
  color: #FFFFFF;
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 5rem 0;
}

/* --------------------------------------------------------------------------
   4. Structural Layout Components
   -------------------------------------------------------------------------- */
/* Particle Canvas */
#particleCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  opacity: 0.65;
  transition: opacity var(--transition-slow);
}

/* Sticky Header */
.sticky-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--theme-transition);
}

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

.nav-logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-normal);
  border-radius: 2px;
}

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

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(var(--rgb-iron), 0.3);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

html.dark .theme-toggle-btn {
  background: rgba(var(--rgb-masala-deep), 0.6);
}

.theme-toggle-btn:hover {
  transform: rotate(15deg) scale(1.05);
  border-color: var(--accent);
  color: var(--accent);
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  cursor: pointer;
  z-index: 1600;
}

.hamburger-btn span {
  width: 100%;
  height: 2.5px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.hamburger-btn.open span:nth-child(1) {
  transform: translateY(8.5px) rotate(45deg);
}
.hamburger-btn.open span:nth-child(2) {
  opacity: 0;
}
.hamburger-btn.open span:nth-child(3) {
  transform: translateY(-8.5px) rotate(-45deg);
}

/* Mobile Menu Drawer */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1400;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-menu-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

#mobileMenu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 290px;
  height: 100vh;
  background: var(--bg-secondary);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 1500;
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  border-left: 1px solid var(--border-color);
  padding: 5rem 2rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--shadow-lg);
}

#mobileMenu.open {
  right: 0;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  list-style: none;
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Hero Section */
.hero-section {
  padding: 6rem 0 4rem 0;
  display: flex;
  align-items: center;
  min-height: calc(100vh - var(--header-height));
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 0.85rem 1.85rem;
  border-radius: var(--radius-pill);
  background: var(--accent-gradient);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.btn-primary:hover {
  background: var(--accent-gradient-hover);
  box-shadow: var(--shadow-lg), var(--glow-shadow);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-secondary {
  padding: 0.85rem 1.85rem;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-normal);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(var(--rgb-spicy-mix-light), 0.08);
  transform: translateY(-2px);
}

.hero-avatar-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-avatar {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--card-border);
  box-shadow: var(--shadow-lg), var(--glow-shadow);
}

/* Core Badges */
.badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.core-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   5. Feature Grids (Tech Stack, Projects, Education, Publications, Contact)
   -------------------------------------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  margin-bottom: 1rem;
}

/* Tech Stack Grid */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
}

.tech-card {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tech-card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.tech-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(var(--rgb-spicy-mix-light), 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.25rem;
}

.tech-card-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Project Cards Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.project-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-image-wrapper {
  position: relative;
  width: 100%;
  height: 210px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

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

.project-title {
  font-size: 1.3rem;
  font-weight: 700;
}

.project-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 0.5rem;
}

/* Education Cards & Timeline */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.education-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}

.education-card .degree {
  font-size: 1.2rem;
  font-weight: 700;
}

.education-card .institution {
  color: var(--accent);
  font-weight: 600;
  font-size: 1rem;
}

.education-card .period {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Publications Grid */
.publications-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.publication-card {
  padding: 1.75rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.publication-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.publication-meta {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* Contact Grid & Form */
.contact-container {
  max-width: 900px;
  margin: 0 auto;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 2.5rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-card {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(var(--rgb-spicy-mix-light), 0.15);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-input {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

textarea.form-input {
  min-height: 130px;
  resize: vertical;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--rgb-spicy-mix-light), 0.2);
}

/* --------------------------------------------------------------------------
   6. Modal Drawer / Popup Styling
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--modal-backdrop-bg);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-content {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -45%) scale(0.95);
  max-width: 680px;
  width: 90%;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg), var(--glow-shadow);
  z-index: 2001;
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(var(--rgb-iron), 0.2);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: rgba(var(--rgb-spicy-mix-light), 0.2);
  color: var(--accent);
  transform: rotate(90deg);
}

/* Active State for Modal */
.modal-backdrop.modal-open,
.modal-backdrop.active,
body.modal-open .modal-backdrop {
  opacity: 1;
  pointer-events: auto;
}

.modal-content.modal-open,
.modal-content.active,
body.modal-open .modal-content {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

/* --------------------------------------------------------------------------
   7. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }

  .hero-content {
    align-items: center;
  }

  .hero-cta-group {
    justify-content: center;
  }

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

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .nav-links {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }

  .section-padding {
    padding: 3.5rem 0;
  }

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

  .modal-content {
    padding: 1.5rem;
    width: 95%;
  }
}

/* --------------------------------------------------------------------------
   8. Subtle Sparkling Animations & Effects
   -------------------------------------------------------------------------- */
@keyframes sparklePulse {
  0%, 100% {
    opacity: 0.75;
    transform: scale(1);
    filter: brightness(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.18);
    filter: brightness(1.35) drop-shadow(0 0 6px rgba(148, 91, 80, 0.6));
  }
}

@keyframes floatGlow {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

@keyframes shimmerGlow {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.sparkle-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  animation: sparklePulse 3s infinite ease-in-out;
  box-shadow: 0 0 12px rgba(116, 72, 63, 0.15);
}

.sparkle-icon {
  display: inline-block;
  animation: sparklePulse 2.5s infinite ease-in-out;
}

.accent-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 50%, #C58B7E 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmerGlow 6s linear infinite;
}

.relocation-pill {
  animation: floatGlow 4s infinite ease-in-out;
}

/* Framer-Grade Reveal On Scroll Animation System */
.framer-reveal {
  opacity: 0;
  transform: translateY(32px) scale(0.98);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.framer-reveal.revealed {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Skill Progress Indicator Bar */
.skill-bar-container {
  width: 100%;
  height: 6px;
  background: rgba(116, 72, 63, 0.12);
  border-radius: var(--radius-pill);
  margin-top: 0.5rem;
  overflow: hidden;
  position: relative;
}

html.dark .skill-bar-container {
  background: rgba(220, 222, 221, 0.1);
}

.skill-bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: var(--radius-pill);
  width: 0;
  transition: width 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}