/* =============================================
   Richa Pitale Portfolio - Main Stylesheet
   ============================================= */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

/* --- CSS Variables --- */
:root {
  --bg-primary: #1a1a1a;
  --bg-secondary: #111111;
  --bg-card: #222222;
  --bg-card-hover: #2a2a2a;
  --border-color: #333333;

  --text-primary: #f5f5f5;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;

  --emerald: #10b981;
  --sapphire: #0ea5e9;
  --purple: #8b5cf6;

  --gradient-accent: linear-gradient(135deg, var(--emerald), var(--sapphire));
  --gradient-hero: linear-gradient(135deg, var(--emerald) 0%, var(--sapphire) 50%, var(--purple) 100%);

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --max-width: 1200px;
  --nav-height: 70px;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);

  --transition: all 0.3s ease;
}

/* --- Reset & Base --- */
*, *::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-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

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

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

.section-padding {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.tag-emerald  { background: rgba(16,185,129,0.15); color: var(--emerald); border: 1px solid rgba(16,185,129,0.3); }
.tag-sapphire { background: rgba(14,165,233,0.15); color: var(--sapphire); border: 1px solid rgba(14,165,233,0.3); }
.tag-purple   { background: rgba(139,92,246,0.15);  color: var(--purple);   border: 1px solid rgba(139,92,246,0.3); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 4px 15px rgba(16,185,129,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(16,185,129,0.45);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--emerald);
  color: var(--emerald);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--emerald);
  border: 2px solid var(--emerald);
}

.btn-ghost:hover {
  background: var(--emerald);
  color: #fff;
  transform: translateY(-2px);
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(17,17,17,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(17,17,17,0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary) !important;
  letter-spacing: -0.02em;
}

.nav-logo span {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.07);
}

.nav-links a.active {
  color: var(--emerald);
}

.nav-cta {
  background: var(--gradient-accent) !important;
  color: #fff !important;
  padding: 0.5rem 1.25rem !important;
  box-shadow: 0 2px 10px rgba(16,185,129,0.3);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(16,185,129,0.4) !important;
  background: var(--gradient-accent) !important;
  color: #fff !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

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

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 4rem) 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(16,185,129,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(14,165,233,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 70%, rgba(139,92,246,0.07) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  color: var(--emerald);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.hero-name {
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
}

.hero-subtitle .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--emerald);
  display: inline-block;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- About Page Sections --- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h2 {
  margin-bottom: 1.25rem;
}

.about-text p {
  margin-bottom: 1rem;
}

.about-highlight {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--emerald);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.about-highlight p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

.about-info-grid {
  display: grid;
  gap: 1rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: var(--transition);
}

.info-card:hover {
  border-color: var(--emerald);
  background: var(--bg-card-hover);
}

.info-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.info-card h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.info-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-primary);
}

/* --- Timeline --- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--emerald), var(--sapphire), var(--purple));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding: 0 0 2.5rem 2.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -6px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--emerald);
  box-shadow: 0 0 0 4px rgba(16,185,129,0.15);
  transition: var(--transition);
}

.timeline-item:nth-child(3n+2) .timeline-dot { border-color: var(--sapphire); box-shadow: 0 0 0 4px rgba(14,165,233,0.15); }
.timeline-item:nth-child(3n+3) .timeline-dot { border-color: var(--purple); box-shadow: 0 0 0 4px rgba(139,92,246,0.15); }

.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
}

.timeline-year {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--emerald);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
}

.timeline-item:nth-child(3n+2) .timeline-year { color: var(--sapphire); }
.timeline-item:nth-child(3n+3) .timeline-year { color: var(--purple); }

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  transition: var(--transition);
}

.timeline-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(16,185,129,0.3);
  transform: translateX(4px);
}

.timeline-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.timeline-card .org {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.timeline-card ul {
  padding-left: 1rem;
  list-style: disc;
}

.timeline-card ul li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

/* --- Skills Grid --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: var(--transition);
  transform-origin: left;
}

.skill-card:hover::before {
  transform: scaleX(1);
}

.skill-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(16,185,129,0.25);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.skill-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.skill-card h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* --- Languages --- */
.languages-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.lang-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  min-width: 100px;
  transition: var(--transition);
}

.lang-badge:hover {
  border-color: var(--emerald);
  transform: translateY(-3px);
}

.lang-badge .flag { font-size: 1.5rem; }
.lang-badge .lang-name { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); }
.lang-badge .lang-level { font-size: 0.72rem; color: var(--text-muted); }

/* --- Beyond Work --- */
.beyond-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.beyond-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
}

.beyond-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(139,92,246,0.3);
}

.beyond-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.beyond-card h3 { margin-bottom: 0.5rem; }
.beyond-card p { font-size: 0.9rem; margin: 0; }

/* --- Projects Page --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(540px, 1fr));
  gap: 2rem;
}

@media (max-width: 600px) {
  .projects-grid { grid-template-columns: 1fr; }
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
  border-color: rgba(16,185,129,0.25);
}

.project-header {
  padding: 2rem 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

.project-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.4;
}

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

.project-body {
  padding: 1.25rem 2rem;
  flex: 1;
}

.project-body h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.project-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

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

.project-section-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--emerald);
  margin-bottom: 0.35rem;
}

.project-section p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}

.project-section ul {
  padding-left: 1rem;
  list-style: disc;
}

.project-section ul li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.2rem;
}

.project-footer {
  padding: 1.25rem 2rem 2rem;
  border-top: 1px solid var(--border-color);
}

.skills-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skills-pill {
  padding: 0.25rem 0.65rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.skills-pill:hover {
  border-color: var(--emerald);
  color: var(--emerald);
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 1rem;
}

.contact-info > p {
  margin-bottom: 2rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  transition: var(--transition);
}

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

.contact-item-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.contact-item a,
.contact-item p {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin: 0;
}

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

.social-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-btn:hover {
  transform: translateY(-2px);
  border-color: var(--emerald);
  color: var(--emerald);
}

/* --- Contact Form --- */
.contact-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.contact-form-wrapper h3 {
  margin-bottom: 1.75rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--emerald);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.15);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,0.15);
}

.form-error-msg {
  font-size: 0.78rem;
  color: #ef4444;
  margin-top: 0.3rem;
  display: none;
}

.form-error-msg.visible {
  display: block;
}

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

.form-submit-btn {
  width: 100%;
  justify-content: center;
  padding: 1rem;
  font-size: 1rem;
}

.form-success {
  display: none;
  text-align: center;
  padding: 2rem;
}

.form-success.visible {
  display: block;
}

.form-success .success-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.form-success h3 {
  color: var(--emerald);
  margin-bottom: 0.5rem;
}

/* --- Footer --- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  font-size: 0.88rem;
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-social a:hover {
  border-color: var(--emerald);
  color: var(--emerald);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul li a {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-col ul li a:hover {
  color: var(--emerald);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0;
}

/* --- Page Header (inner pages) --- */
.page-header {
  padding: calc(var(--nav-height) + 3rem) 1.5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(16,185,129,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-header .breadcrumb {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.page-header .breadcrumb a {
  color: var(--emerald);
}

.page-header h1 {
  margin-bottom: 0.75rem;
}

.page-header p {
  font-size: 1.1rem;
  max-width: 580px;
  margin: 0 auto;
}

/* --- Scroll To Top --- */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* --- Screen reader only --- */
.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;
}

/* --- Divider --- */
.section-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-color), transparent);
  margin: 1rem 0;
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 50% 50%, rgba(16,185,129,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner h2 { margin-bottom: 0.75rem; }
.cta-banner p { margin-bottom: 2rem; }
.cta-banner .btn-row { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* --- Achievement badge --- */
.achievement-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.85rem;
  border-radius: 50px;
  background: rgba(251,191,36,0.1);
  border: 1px solid rgba(251,191,36,0.3);
  color: #fbbf24;
  font-size: 0.78rem;
  font-weight: 600;
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 1024px) {
  .about-intro { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(17,17,17,0.98); flex-direction: column; padding: 1.5rem; gap: 0.25rem; border-bottom: 1px solid var(--border-color); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 0.75rem 1rem; width: 100%; }
  .hamburger { display: flex; }

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

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .hero-stats { gap: 2rem; }

  .form-row { grid-template-columns: 1fr; }

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

@media (max-width: 480px) {
  .hero-ctas { flex-direction: column; align-items: center; }
  .hero-subtitle { flex-direction: column; gap: 0.25rem; }
  .hero-subtitle .dot { display: none; }
  .cta-banner .btn-row { flex-direction: column; align-items: center; }
}