/* ==========================================
   Synrg Group — Design System
   Green Evolution — #2d5a1e
   ========================================== */

/* ----- Custom Properties ----- */
:root {
  /* Colors */
  --color-primary: #2d5a1e;
  --color-primary-hover: #1e3d14;
  --color-primary-tint: #eef5ee;
  --color-primary-light: #d4e8d4;
  --color-dark: #1a2e1a;
  --color-body: #3d4f3d;
  --color-muted: #6b7d6b;
  --color-white: #ffffff;
  --color-light: #f5f6f5;
  --color-border: #dde0dd;
  --color-error: #c0392b;

  /* Typography */
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Type Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.563rem;
  --text-2xl: 1.953rem;
  --text-3xl: 2.441rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-padding: 1.25rem;
  --border-radius: 8px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-body);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--color-primary-hover);
}

ul {
  list-style: none;
}

address {
  font-style: normal;
}

/* ----- Focus Styles ----- */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ----- Skip Link ----- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 10000;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* ----- Container ----- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ----- Section ----- */
.section {
  padding: var(--space-xl) 0;
}
.section-tinted {
  background: var(--color-primary-tint);
}

.section-heading {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-dark);
  text-align: center;
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-muted);
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-lg);
  line-height: 1.5;
}

/* ----- Buttons ----- */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.938rem;
  text-decoration: none;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
  text-align: center;
}

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

/* ----- Header / Navigation ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo img {
  height: 36px;
  width: auto;
}

/* Nav */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-dark);
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}
.nav-link.active {
  border-bottom-color: var(--color-primary);
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-dark);
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  position: absolute;
}
.nav-toggle-icon {
  position: relative;
}
.nav-toggle-icon::before {
  top: -7px;
}
.nav-toggle-icon::after {
  top: 7px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: url('../img/fully_final.jpg') center/cover no-repeat;
  background-attachment: fixed;
  color: var(--color-white);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.45));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: var(--space-xl) 0;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  font-size: var(--text-lg);
  line-height: 1.5;
  opacity: 0.9;
  margin-bottom: var(--space-lg);
}

/* ----- Stats Grid ----- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.stat-item {
  text-align: center;
  padding: var(--space-md);
  background: var(--color-white);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
}

.stat-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: var(--space-xs);
}

/* ----- About Content ----- */
.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-text p {
  margin-bottom: var(--space-sm);
  font-size: var(--text-base);
  line-height: 1.7;
}
.about-text p:last-child {
  margin-bottom: 0;
}

/* ----- Services Grid ----- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.service-card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  padding: var(--space-lg);
  transition: box-shadow 0.2s, transform 0.2s;
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-icon {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.service-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--space-xs);
}

.service-desc {
  color: var(--color-body);
  line-height: 1.6;
}

/* ----- Portfolio ----- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: var(--space-lg);
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-body);
  background: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

.portfolio-item {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-light);
  transition: opacity 0.3s, transform 0.3s;
}
.portfolio-item.hidden {
  display: none;
}

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

.portfolio-item:hover img {
  transform: scale(1.05);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 50%, rgba(45,90,30,0.9));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  color: var(--color-white);
  opacity: 0;
  transition: opacity 0.3s;
}
.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.portfolio-overlay p {
  font-size: var(--text-sm);
  opacity: 0.9;
}

/* ----- Why Synrg / Pillars ----- */
.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.pillar-card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s;
}
.pillar-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pillar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary-tint);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.pillar-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--space-xs);
}

.pillar-card p {
  color: var(--color-body);
  font-size: var(--text-sm);
  line-height: 1.6;
}

/* ----- Contact ----- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.contact-icon {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 0.2rem;
}

.contact-detail h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
}

.contact-detail address,
.contact-detail a {
  font-size: var(--text-sm);
  color: var(--color-body);
  line-height: 1.5;
}

.contact-map {
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.contact-map iframe {
  display: block;
}


/* ----- Contact Form ----- */
.contact-form-wrap {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-primary-tint);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
}

.contact-form-wrap h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--space-xs);
}

.contact-form-wrap > p {
  color: var(--color-body);
  margin-bottom: var(--space-md);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-dark);
}

.form-group input,
.form-group textarea {
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-dark);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn {
  align-self: flex-start;
  margin-top: var(--space-xs);
}

.form-note {
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin-top: var(--space-xs);
}

/* ----- Footer ----- */
.site-footer {
  background: #0a1a0a;
  color: rgba(255,255,255,0.8);
  padding: var(--space-xl) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

/* Footer logo pill — makes white-bg logo visible on dark footer */
.footer-logo-pill {
  display: inline-block;
  background: var(--color-white);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  margin-bottom: var(--space-sm);
}
.footer-logo-pill img {
  display: block;
}

.footer-brand p {
  font-size: var(--text-sm);
  line-height: 1.6;
}

.footer-links h3,
.footer-contact h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: var(--text-sm);
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--color-white);
}

.footer-contact address {
  font-size: var(--text-sm);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.footer-contact p {
  font-size: var(--text-sm);
  margin-bottom: 0.25rem;
}

.footer-contact a {
  color: rgba(255,255,255,0.7);
}
.footer-contact a:hover {
  color: var(--color-white);
}

.footer-bottom {
  margin-top: var(--space-xl);
  padding: var(--space-md) 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
}

/* ----- Reduced Motion ----- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ----- Tablet (480px+) ----- */
@media (min-width: 30em) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

/* ----- Tablet Landscape (768px+) ----- */
@media (min-width: 48em) {
  :root {
    --text-3xl: 3.052rem;
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

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

  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

/* ----- Desktop (1024px+) ----- */
@media (min-width: 64em) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pillars-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ----- Wide (1200px+) ----- */
@media (min-width: 75em) {
  .hero-headline {
    font-size: 3.5rem;
  }
}

/* ----- Mobile Nav ----- */
@media (max-width: 47.99em) {
  .nav-toggle {
    display: block;
    position: relative;
    z-index: 1001;
  }

  .nav-list {
    position: fixed;
    inset: 0;
    background: #ffffff;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    visibility: hidden;
    z-index: 1000;
  }

  .nav-list.open {
    visibility: visible;
  }

  .nav-link {
    font-size: var(--text-xl);
    font-weight: 600;
  }

  .hero {
    background-attachment: scroll;
  }
}