/* ==========================================================================
   NIHAL GOUD - PROFESSIONAL PORTFOLIO & RESUME
   Palette: Strict 2-3 Color Harmony (Olive Green, Slate Charcoal, Warm Linen White)
   ========================================================================== */

:root {
  /* Primary Hue: Refined Olive Green */
  --olive-900: #263327;
  --olive-800: #334434;
  --olive-700: #3F5340;   /* Primary Brand Color */
  --olive-600: #4F6750;
  --olive-500: #627E64;
  --olive-200: #D8E0D7;
  --olive-100: #EBF0EA;   /* Soft Olive Tint */
  --olive-50:  #F4F7F3;

  /* Neutrals: Warm Canvas & Deep Slate */
  --bg-page: #FBFBFA;     /* Warm Ivory / Linen canvas */
  --bg-surface: #FFFFFF;  /* Crisp card surface */
  --bg-subtle: #F4F5F1;   /* Alternating section background */
  
  --text-main: #1C221D;   /* Deep Slate/Charcoal text */
  --text-muted: #555E54;  /* Refined secondary text */
  --text-subtle: #7A8578; /* Muted captions & metadata */
  
  --border-light: #E4E7E1;
  --border-focus: #3F5340;

  /* Typography */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Plus Jakarta Sans', sans-serif;

  /* Shadow & Transitions */
  --shadow-sm: 0 1px 3px rgba(28, 34, 29, 0.04), 0 1px 2px rgba(28, 34, 29, 0.02);
  --shadow-md: 0 4px 12px rgba(28, 34, 29, 0.06), 0 2px 4px rgba(28, 34, 29, 0.03);
  --shadow-lg: 0 12px 28px rgba(28, 34, 29, 0.08), 0 4px 8px rgba(28, 34, 29, 0.03);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 0.18s ease;
  --transition-normal: 0.25s ease;
}

/* Base Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img, svg {
  vertical-align: middle;
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1020px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.text-olive {
  color: var(--olive-700);
}

/* ==========================================================================
   Header / Navbar
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 251, 250, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1020px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-main);
}

.brand-monogram {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background-color: var(--olive-700);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-name {
  letter-spacing: -0.2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.35rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--olive-700);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--olive-700);
  transition: width var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-outline-sm {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--olive-700);
  background-color: var(--olive-100);
  border: 1px solid var(--olive-200);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-outline-sm:hover {
  background-color: var(--olive-700);
  color: #FFFFFF;
}

.btn-outline-sm .icon {
  width: 15px;
  height: 15px;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.mobile-toggle span {
  width: 22px;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: transform var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(180deg, var(--bg-page) 0%, var(--bg-subtle) 100%);
}

.hero-content {
  max-width: 820px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--olive-800);
  background-color: var(--olive-100);
  border: 1px solid var(--olive-200);
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: #2E7D32;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 2px rgba(46, 125, 50, 0.2);
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--olive-700);
  margin-bottom: 1.25rem;
}

.hero-bio {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

/* Meta Data Bar */
.hero-meta-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  margin-bottom: 2rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-light);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 500;
}

.meta-link:hover {
  color: var(--olive-700);
}

.meta-icon {
  width: 16px;
  height: 16px;
  color: var(--olive-700);
  flex-shrink: 0;
}

/* Hero Action Buttons */
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-sm);
  font-size: 0.94rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-primary {
  background-color: var(--olive-700);
  color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--olive-800);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background-color: var(--olive-100);
  border-color: var(--olive-200);
  color: var(--olive-800);
  transform: translateY(-1px);
}

.btn-icon {
  width: 17px;
  height: 17px;
}

/* ==========================================================================
   Section Shared Styles
   ========================================================================== */
.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.section-header {
  margin-bottom: 2.25rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--olive-700);
  margin-bottom: 0.4rem;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 0.98rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  max-width: 650px;
}

/* Card Base */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card:hover {
  border-color: var(--olive-200);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Summary Card
   ========================================================================== */
.summary-card {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.summary-text {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.summary-text strong {
  color: var(--text-main);
  font-weight: 600;
}

.summary-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  border-top: 1px solid var(--border-light);
  padding-top: 1.5rem;
}

.highlight-box {
  background-color: var(--olive-50);
  border: 1px solid var(--olive-100);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.highlight-num {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--olive-700);
  line-height: 1.2;
}

.highlight-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   Skills Section
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.skill-category-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-light);
}

.category-icon-box {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--olive-100);
  color: var(--olive-700);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.category-icon-box svg {
  width: 18px;
  height: 18px;
}

.category-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

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

.skill-group-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
}

.tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.skill-tag {
  font-size: 0.84rem;
  font-weight: 500;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background-color: var(--olive-100);
  border-color: var(--olive-200);
  color: var(--olive-800);
}

.skill-tag-primary {
  background-color: var(--olive-100);
  color: var(--olive-800);
  border-color: var(--olive-200);
  font-weight: 600;
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.project-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

.project-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--olive-700);
  margin-bottom: 0.35rem;
}

.project-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.project-links {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-main);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.link-btn svg {
  width: 15px;
  height: 15px;
}

.link-btn:hover {
  background-color: var(--olive-100);
  border-color: var(--olive-200);
  color: var(--olive-800);
}

.link-btn-accent {
  background-color: var(--olive-700);
  color: #FFFFFF;
  border-color: var(--olive-700);
}

.link-btn-accent:hover {
  background-color: var(--olive-800);
  border-color: var(--olive-800);
  color: #FFFFFF;
}

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

.tag {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background-color: var(--olive-50);
  color: var(--olive-800);
  border: 1px solid var(--olive-100);
}

.project-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.project-bullets li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.project-bullets li::before {
  content: "";
  position: absolute;
  left: 0.25rem;
  top: 0.55rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--olive-700);
}

/* ==========================================================================
   Education Timeline
   ========================================================================== */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 1rem;
  bottom: 1rem;
  left: 6px;
  width: 2px;
  background-color: var(--olive-200);
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 1.5rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--olive-700);
  border: 3px solid #FFFFFF;
  box-shadow: 0 0 0 2px var(--olive-200);
}

.timeline-card {
  padding: 1.6rem;
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.65rem;
  flex-wrap: wrap;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
}

.timeline-institution {
  font-size: 0.95rem;
  color: var(--olive-700);
  font-weight: 600;
  margin-top: 0.2rem;
}

.timeline-period {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  background-color: var(--olive-100);
  color: var(--olive-800);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.timeline-description {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Certifications
   ========================================================================== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.cert-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  border-top: 3px solid var(--olive-700);
}

.cert-issuer-badge {
  align-self: flex-start;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background-color: var(--olive-100);
  color: var(--olive-800);
}

.cert-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
}

.cert-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Leadership & Volunteering
   ========================================================================== */
.leadership-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.leadership-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.lead-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--olive-100);
  color: var(--olive-700);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.lead-icon-box svg {
  width: 22px;
  height: 22px;
}

.lead-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.lead-desc {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Contact / Direct Redirect
   ========================================================================== */
.contact-card {
  padding: 3rem 2.5rem;
  background-color: var(--bg-surface);
}

.contact-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.contact-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.contact-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.contact-tile {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background-color: var(--bg-subtle);
  transition: all var(--transition-fast);
}

.contact-tile:hover {
  background-color: var(--olive-100);
  border-color: var(--olive-200);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.contact-tile-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  color: var(--olive-700);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border-light);
}

.contact-tile-icon svg {
  width: 20px;
  height: 20px;
}

.contact-tile-info {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  overflow: hidden;
}

.tile-label {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
}

.tile-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

.tile-arrow {
  width: 18px;
  height: 18px;
  color: var(--text-subtle);
  transition: transform var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.contact-tile:hover .tile-arrow {
  color: var(--olive-700);
  transform: translate(2px, -2px);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: 2.25rem 0;
  border-top: 1px solid var(--border-light);
  background-color: var(--bg-surface);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--olive-700);
  transition: color var(--transition-fast);
}

.back-to-top svg {
  width: 16px;
  height: 16px;
}

.back-to-top:hover {
  color: var(--olive-900);
}

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

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

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-light);
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    gap: 1rem;
    display: none;
    box-shadow: var(--shadow-md);
  }

  .nav-menu.open {
    display: flex;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .contact-card {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-title {
    font-size: 1.85rem;
  }
}

/* ==========================================================================
   Print Stylesheet (Outputs clean standard resume if printed or saved to PDF)
   ========================================================================== */
@media print {
  body {
    background-color: #FFFFFF !important;
    color: #000000 !important;
    font-size: 11pt;
    line-height: 1.4;
  }

  .navbar,
  .hero-actions,
  .nav-actions,
  .back-to-top,
  .footer,
  .project-links,
  .tile-arrow {
    display: none !important;
  }

  .hero-section {
    padding: 0 0 1.5rem 0 !important;
    background: none !important;
    border-bottom: 2px solid #333 !important;
  }

  .section {
    padding: 1.5rem 0 !important;
    page-break-inside: avoid;
  }

  .section-alt {
    background: none !important;
    border: none !important;
  }

  .card {
    border: 1px solid #CCC !important;
    box-shadow: none !important;
    padding: 1rem !important;
  }

  .timeline::before {
    display: none;
  }

  .timeline {
    padding-left: 0;
  }

  .timeline-dot {
    display: none;
  }

  a {
    text-decoration: none !important;
    color: #000000 !important;
  }
}