/* ============================================
   Portfolio Page Styles – Thuthuka Mining Services
   ============================================ */

:root {
  --green:        #3CB85C;
  --green-light:  #6DD68A;
  --green-dim:    #1C7038;
  --green-dark:   #0D2B16;
  --black:        #060E08;
  --dark:         #0B180F;
  --surface:      #101E14;
  --surface-2:    #162419;
  --border:       rgba(60,184,92,0.16);
  --border-s:     rgba(60,184,92,0.30);
  --text:         #EDF5EF;
  --text-muted:   #7A9A82;
  --text-dim:     #3A5A42;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--black);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Canvas background (particles) */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

/* ============================================
   Navigation (base styles – external files cover logo & dropdown)
   ============================================ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 0 5vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  transition: background 0.5s, backdrop-filter 0.5s, border-color 0.5s;
  border-bottom: 1px solid transparent;
}

nav.scrolled {
  background: rgba(6, 14, 8, 0.94);
  backdrop-filter: blur(18px);
  border-color: var(--border);
}



.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--green);
}

.nav-cta {
  border: 1px solid var(--green) !important;
  color: var(--green) !important;
  padding: 8px 22px;
  border-radius: 40px;
  transition: background 0.3s, color 0.3s !important;
}

.nav-cta:hover {
  background: var(--green) !important;
  color: var(--black) !important;
}

/* Mobile menu (shown on small screens) */
.mobile-menu {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--green);
  z-index: 250;
}

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

  .nav-links {
    position: fixed;
    top: 76px;
    left: -100%;
    width: 80%;
    max-width: 320px;
    height: calc(100vh - 76px);
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.5rem;
    gap: 1rem;
    border-right: 1px solid var(--border);
    transition: left 0.3s ease;
    z-index: 200;
    overflow-y: auto;
  }

  .nav-links.active {
    left: 0;
  }

  /* Simple overlay (optional, can be added via JS) */
  .nav-links.active::before {
    content: '';
    position: fixed;
    top: 76px;
    left: 0;
    width: 100%;
    height: calc(100vh - 76px);
    background: rgba(0, 0, 0, 0.7);
    z-index: -1;
  }
}

/* ============================================
   Hero Section (Portfolio)
   ============================================ */
.hero {
  position: relative;
  z-index: 1;
  min-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 5vw;
  margin-top: 76px;
  background: linear-gradient(115deg, rgba(6, 14, 8, 0.92), rgba(6, 14, 8, 0.85)),
    url('/img/male-engineer-analyzed-industry-40-system-smart-manufacturing-plant.jpg') no-repeat;
  background-size: cover;
  background-position: center 35%;
}

.hero-overlay {
  position: absolute;
  inset: 0;

  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  margin: 0 auto;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.5rem;
}

.hero-eyebrow::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--green);
}

.hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 1.2rem;
}

.hero h1 em {
  font-style: italic;
  color: var(--green);
}

.hero p {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
}

/* Portfolio Stats inside hero */
.portfolio-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
}

.portfolio-stat {
  text-align: center;
  background: rgba(16, 30, 20, 0.6);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1rem 1.8rem;
  min-width: 140px;
}

.portfolio-stat-number {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--green);
  letter-spacing: -0.02em;
}

.portfolio-stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============================================
   Section Utilities
   ============================================ */
section {
  position: relative;
  z-index: 1;
  padding: 5rem 0;
}

.section-inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 5vw;
}

.section-light {
  background: var(--surface);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem auto;
}

.section-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.section-eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--green);
}

.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 1rem;
}

.section-title em {
  font-style: italic;
  color: var(--green);
}

.section-subhead {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============================================
   Portfolio Filter Section
   ============================================ */
.portfolio-filter-section {
  padding-bottom: 2rem;
}

.portfolio-filter-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 2rem auto;
}

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 2rem;
}

.portfolio-filter-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: 40px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}

.portfolio-filter-btn:hover,
.portfolio-filter-btn.active {
  background: var(--green);
  color: var(--black);
  border-color: var(--green);
}

/* ============================================
   Portfolio Grid
   ============================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.portfolio-card {
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 28px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.portfolio-card:hover {
  transform: translateY(-5px);
  border-color: var(--green-dim);
}

.portfolio-card-image {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--surface-2);
}

.portfolio-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.portfolio-card:hover .portfolio-card-image img {
  transform: scale(1.03);
}

.portfolio-card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--green);
  color: var(--black);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 30px;
  z-index: 2;
}

.portfolio-card-content {
  padding: 1.5rem;
}

.portfolio-card-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 0.8rem;
}

.portfolio-card-meta i {
  margin-right: 4px;
  color: var(--green);
}

.portfolio-card-content h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.portfolio-card-content p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.portfolio-tag {
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 30px;
  color: var(--text-dim);
  transition: 0.2s;
}

.portfolio-tag:hover {
  border-color: var(--green);
  color: var(--green);
}

.portfolio-results {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  margin: 1rem 0;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
}

.result-item {
  text-align: center;
  flex: 1;
}

.result-item strong {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  color: var(--green);
  font-weight: 700;
}

.result-item span {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.portfolio-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--green);
  text-decoration: none;
  transition: gap 0.2s;
}

.portfolio-link i {
  font-size: 0.7rem;
  transition: transform 0.2s;
}

.portfolio-link:hover {
  gap: 12px;
}

.portfolio-link:hover i {
  transform: translateX(3px);
}

/* ============================================
   Partner Grid
   ============================================ */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.partner-card {
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s;
}

.partner-card:hover {
  border-color: var(--green-dim);
  transform: translateY(-4px);
}

.partner-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 1rem;
  background: var(--surface-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}

.partner-icon i {
  font-size: 2rem;
  color: var(--green);
}

.partner-card h4 {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.partner-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ============================================
   Future Ready Section
   ============================================ */
.future-ready {
  background: var(--surface-2);
  border-radius: 32px;
  padding: 3rem;
  text-align: center;
  border: 1px solid var(--border);
}

.future-icon i {
  font-size: 2.5rem;
  color: var(--green);
  margin-bottom: 1rem;
}

.future-ready h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
}

.future-ready h2 em {
  font-style: italic;
  color: var(--green);
}

.future-ready p {
  max-width: 700px;
  margin: 0 auto 2rem auto;
  color: var(--text-muted);
}

.future-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.2rem;
  margin-top: 1rem;
}

.future-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--dark);
  padding: 0.8rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  transition: 0.2s;
}

.future-item i {
  color: var(--green);
  font-size: 1rem;
}

.future-item span {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.future-item:hover {
  border-color: var(--green);
  background: var(--surface);
}

/* ============================================
   CTA Banner
   ============================================ */
.cta-banner {
  background: var(--green-dark);
  border-radius: 32px;
  padding: 3rem;
  text-align: center;
  border: 1px solid var(--border);
}

.cta-banner h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem;
  font-weight: 300;
  margin-bottom: 1rem;
}

.cta-banner p {
  max-width: 600px;
  margin: 0 auto;
  color: var(--text-muted);
}

.btn-primary {
  background: var(--green);
  color: var(--black);
  border: none;
  padding: 12px 32px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-block;
  border-radius: 40px;
  transition: background 0.3s, transform 0.2s;
  margin-top: 1.5rem;
}

.btn-primary:hover {
  background: var(--green-light);
  transform: translateY(-2px);
}

/* ============================================
   Footer
   ============================================ */


/* ============================================
   Reveal Animations
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 992px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-stats {
    gap: 1rem;
  }

  .portfolio-stat {
    padding: 0.8rem 1rem;
    min-width: 110px;
  }

  .portfolio-stat-number {
    font-size: 1.2rem;
  }

  .future-ready {
    padding: 1.5rem;
  }

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

  .cta-banner {
    padding: 2rem;
  }

  .cta-banner h3 {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .portfolio-filters {
    gap: 0.5rem;
  }

  .portfolio-filter-btn {
    padding: 6px 14px;
    font-size: 0.65rem;
  }

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

  .hero h1 {
    font-size: 2.2rem;
  }
}