/* ============================================
   ASFA VISION & TECHNOLOGY — Main Stylesheet
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-primary:    #0D1B2A;
  --color-accent:     #F5921E;
  --color-blue:       #1B3E8C;
  --color-gold:       #F5A623;
  --color-bg:         #F8F9FA;
  --color-bg-alt:     #EEF1F4;
  --color-text:       #212529;
  --color-text-muted: #6C757D;
  --color-white:      #FFFFFF;
  --color-border:     #DEE2E6;

  --font-heading: 'Montserrat', sans-serif;
  --font-body:    'Open Sans', sans-serif;

  --shadow-sm:   0 2px 8px rgba(0,0,0,0.06);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover:0 12px 40px rgba(0,0,0,0.14);

  --radius:      12px;
  --radius-sm:   6px;
  --transition:  0.3s ease;

  --container:   1200px;
  --nav-height:  72px;
}

/* --- 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);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.25rem; }
p  { margin-bottom: 1rem; color: var(--color-text-muted); }
p:last-child { margin-bottom: 0; }

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

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}
.section-label::before {
  content: '';
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  flex-shrink: 0;
}

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

.section-header h2 { position: relative; display: inline-block; }

.section-header h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin: 0.75rem auto 0;
}

.section-header p {
  max-width: 560px;
  margin: 1rem auto 0;
  font-size: 1.05rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: var(--transition);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn-primary:hover {
  background: #d97d10;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245,146,30,0.4);
}

.btn-outline {
  border: 2px solid var(--color-white);
  color: var(--color-white);
}
.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.bg-alt { background: var(--color-bg-alt); }
.bg-dark { background: var(--color-primary); }

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.navbar.scrolled {
  background: rgba(13,27,42,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(245,146,30,0.2);
  box-shadow: 0 2px 24px rgba(0,0,0,0.3);
}

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

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

.nav-logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.nav-logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-white);
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.04em;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

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

.nav-cta {
  background: var(--color-accent) !important;
  color: var(--color-white) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: #d97d10 !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-primary);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}

/* Technical dot-grid pattern */
.hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(245,146,30,0.12) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  z-index: 0;
  pointer-events: none;
}

/* Diagonal accent line */
.hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: 0;
  width: 500px;
  height: 100%;
  background: linear-gradient(135deg, rgba(27,62,140,0.12) 0%, transparent 60%);
  transform: skewX(-8deg);
  pointer-events: none;
}

/* Hero two-column layout */
.hero .container {
  display: flex;
  align-items: center;
  gap: 5rem;
}

.hero-content {
  position: relative;
  z-index: 1;
  flex: 1;
  padding-top: var(--nav-height);
}

.hero-visual {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  padding-top: var(--nav-height);
}

.hero-logo-wrap {
  animation: floatLogo 5s ease-in-out infinite;
}

.hero-logo-wrap img {
  width: 300px;
  height: auto;
  display: block;
}

@keyframes floatLogo {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}

.hero-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 24px rgba(0,0,0,0.35);
}

.hero h1 span { color: var(--color-accent); }

.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  max-width: 580px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.5);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s infinite;
  z-index: 1;
}

.hero-scroll svg {
  width: 20px; height: 20px;
  stroke: rgba(255,255,255,0.5);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   ABOUT
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius);
  overflow: visible;
  box-shadow: var(--shadow-hover);
}

.about-image > img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}

/* Orange accent frame */
.about-image::before {
  content: '';
  position: absolute;
  inset: -10px;
  border: 2px solid var(--color-accent);
  border-radius: calc(var(--radius) + 4px);
  opacity: 0.25;
  pointer-events: none;
}

.about-image-badge {
  position: absolute;
  bottom: 1.5rem;
  right: -1rem;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  text-align: center;
}
.about-image-badge strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}
.about-image-badge span {
  font-size: 0.8rem;
  opacity: 0.9;
}

.about-text { margin: 1.5rem 0 2rem; }

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

.vm-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  border-top: 3px solid var(--color-accent);
  transition: box-shadow var(--transition);
}
.vm-card:hover { box-shadow: var(--shadow-card); }

.vm-card h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.vm-card p { font-size: 0.875rem; margin: 0; }

/* Stats Counter */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.stat-item {
  text-align: center;
  padding: 0 0.5rem;
  position: relative;
}
.stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: 0; top: 10%;
  height: 80%;
  width: 1px;
  background: var(--color-border);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.stat-number span { color: var(--color-accent); }

.stat-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
  letter-spacing: 0.02em;
}

/* ============================================
   SERVICES
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(245,146,30,0.14);
}

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

.service-icon {
  width: 56px; height: 56px;
  background: rgba(245,146,30,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: background var(--transition);
}

.service-card:hover .service-icon {
  background: rgba(245,146,30,0.18);
}

.service-icon svg {
  width: 28px; height: 28px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 { font-size: 1.05rem; margin-bottom: 0.75rem; }
.service-card p  { font-size: 0.9rem; }

/* ============================================
   PORTFOLIO
   ============================================ */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.portfolio-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.portfolio-card:hover { transform: translateY(-4px); box-shadow: 0 20px 48px rgba(0,0,0,0.14); }

.portfolio-card.hidden { display: none; }

.portfolio-img {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.portfolio-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-img img { transform: scale(1.06); }

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,27,42,0.94) 0%, rgba(13,27,42,0.35) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem;
  gap: 0.3rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio-card:hover .portfolio-overlay { opacity: 1; }

.portfolio-overlay h3 {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}

.portfolio-overlay p {
  color: rgba(255,255,255,0.82);
  font-size: 0.78rem;
  margin: 0;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portfolio-overlay span {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
}

/* --- In-Progress Badge --- */
.badge-progress {
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  background: #FFB800;
  color: #1a1000;
  font-family: var(--font-heading);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  padding: 0.3rem 0.65rem 0.3rem 0.55rem;
  border-radius: 4px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.35);
  z-index: 2;
  pointer-events: none;
  white-space: nowrap;
}

.badge-dot {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #1a1000;
  animation: badge-pulse 1.6s ease-in-out infinite;
}

@keyframes badge-pulse {
  0%, 100% { opacity: 1;    transform: scale(1);    }
  50%       { opacity: 0.3; transform: scale(0.65); }
}

.portfolio-info {
  background: var(--color-white);
  padding: 1.25rem;
}

.portfolio-category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.4rem;
}

.portfolio-info h3 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.portfolio-info p  { font-size: 0.82rem; margin: 0; }

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.contact-info > p { font-size: 1rem; margin-bottom: 2rem; }

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.contact-item-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: rgba(245,146,30,0.1);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
}

.contact-item-icon svg {
  width: 20px; height: 20px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-item strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin-bottom: 0.2rem;
}

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

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #25D366;
  color: var(--color-white);
  padding: 0.85rem 1.75rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 1rem;
  transition: var(--transition);
}

.btn-whatsapp:hover {
  background: #1ebe5d;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,211,102,0.35);
}

.btn-whatsapp svg { width: 20px; height: 20px; fill: white; }

.map-embed {
  margin-top: 2rem;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.map-embed iframe { display: block; width: 100%; }

/* Contact Form */
.contact-form-wrap {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
}

.contact-form-wrap h3 {
  font-size: 1.3rem;
  margin-bottom: 1.75rem;
}

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

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

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(245,146,30,0.15);
  background: var(--color-white);
}

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

.form-group .error-msg {
  display: none;
  font-size: 0.78rem;
  color: #dc3545;
  margin-top: 0.3rem;
}

.form-group.invalid input,
.form-group.invalid textarea {
  border-color: #dc3545;
}

.form-group.invalid .error-msg { display: block; }

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

.form-success {
  display: none;
  text-align: center;
  padding: 2rem;
  color: #198754;
}

.form-success svg {
  width: 56px; height: 56px;
  stroke: #198754;
  fill: none;
  stroke-width: 1.5;
  margin: 0 auto 1rem;
}

.form-success h4 { color: #198754; font-size: 1.2rem; margin-bottom: 0.5rem; }
.form-success p  { color: var(--color-text-muted); margin: 0; }

.form-error {
  display: none;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 8px;
  background: rgba(220, 53, 69, 0.08);
  border: 1px solid rgba(220, 53, 69, 0.25);
}
.form-error svg {
  flex-shrink: 0;
  width: 22px; height: 22px;
  stroke: #dc3545;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.form-error p { margin: 0; color: #dc3545; font-size: 0.9rem; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: #060f18;
  color: rgba(255,255,255,0.6);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand img {
  height: 54px;
  margin-bottom: 0.75rem;
  object-fit: contain;
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}

.footer-brand p { font-size: 0.875rem; max-width: 280px; }

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.75rem;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 28px; height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.footer-col ul li { margin-bottom: 0.6rem; }

.footer-col ul a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

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

.footer-bottom {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
}

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

.footer-social a {
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.footer-social svg { width: 16px; height: 16px; fill: rgba(255,255,255,0.6); }
.footer-social a:hover svg { fill: var(--color-white); }

/* ============================================
   BACK TO TOP
   ============================================ */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px; height: 46px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(245,146,30,0.45);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 999;
}

#back-to-top.visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { transform: translateY(-3px); background: #d97d10; }
#back-to-top svg { width: 20px; height: 20px; stroke: white; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }

/* ============================================
   PAGE LOADER
   ============================================ */
#page-loader {
  position: fixed;
  inset: 0;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.4s ease;
}
#page-loader.hidden { opacity: 0; pointer-events: none; }

.loader-ring {
  width: 48px; height: 48px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .services-grid    { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid   { grid-template-columns: repeat(2, 1fr); }
  .about-grid       { grid-template-columns: 1fr; gap: 3rem; }
  .about-image > img { height: 360px; }
  .about-image-badge { right: 1rem; }
  .stats-row        { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .stat-item + .stat-item::before { display: none; }

  .hero .container  { flex-direction: column; text-align: center; gap: 2.5rem; }
  .hero-visual      { order: -1; }
  .hero-logo-wrap   { padding: 1.75rem 2rem; }
  .hero-logo-wrap img { width: 220px; }
  .hero-buttons     { justify-content: center; }
}

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

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

  .hero-visual { display: none; }

  .hamburger { display: flex; }

  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    top: var(--nav-height);
    background: var(--color-primary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
  }

  .nav-links.open { display: flex; }
  .nav-links a    { font-size: 1.25rem; }
  .nav-cta        { padding: 0.75rem 2rem; }

  .contact-grid   { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row       { grid-template-columns: 1fr; }

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

  .vm-cards       { grid-template-columns: 1fr; }

  .about-logo-badge { right: 0.5rem; }
  .about-logo-badge img { width: 130px; }
}

@media (max-width: 540px) {
  .services-grid  { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .stats-row      { grid-template-columns: repeat(2, 1fr); }
  .hero-buttons   { flex-direction: column; align-items: flex-start; }
  .hero::after    { display: none; }
}