/* =====================================================
   OYUSYS — Professional Company Website
   Style: Clean, Navy Blue & Grey, Premium
   ===================================================== */

/* ---- IMPORTS & VARIABLES ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@400;600;700;800&display=swap');

:root {
  /* Brand Colors */
  --navy-900: #0d1b2e;
  --navy-800: #112240;
  --navy-700: #1a3256;
  --navy-600: #1e4080;
  --navy-500: #1a56db;
  --navy-400: #3b82f6;
  --navy-100: #e8f0fe;
  --navy-50:  #f0f4ff;

  /* Grey Scale */
  --grey-900: #111827;
  --grey-800: #1f2937;
  --grey-700: #374151;
  --grey-600: #4b5563;
  --grey-500: #6b7280;
  --grey-400: #9ca3af;
  --grey-300: #d1d5db;
  --grey-200: #e5e7eb;
  --grey-100: #f3f4f6;
  --grey-50:  #f9fafb;

  /* Accent */
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;

  /* Semantic */
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-alt: #f1f5fb;
  --text-primary: #0d1b2e;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --border-color: #e2e8f0;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(13,27,46,.08);
  --shadow-lg: 0 10px 40px rgba(13,27,46,.12);
  --shadow-xl: 0 20px 60px rgba(13,27,46,.16);

  /* Typography */
  --font-body: 'Inter', sans-serif;
  --font-head: 'Poppins', 'Inter', sans-serif;

  /* Spacing */
  --section-py: 5rem;
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

.section { padding: var(--section-py) 0; }
.section-alt { background: var(--bg-alt); }
.mt-1 { margin-top: 1.5rem; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.8rem;
  border-radius: 50px;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .01em;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--navy-500);
  color: #fff;
  box-shadow: 0 4px 20px rgba(26,86,219,.35);
}
.btn-primary:hover {
  background: var(--navy-600);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(26,86,219,.45);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  border: 2px solid rgba(255,255,255,.5);
  color: #fff;
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(4px);
}
.btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,.18);
  transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; border-radius: var(--radius-md); }
.btn-icon { flex-shrink: 0; transition: transform var(--transition); }
.btn:hover .btn-icon { transform: translateX(3px); }

/* ---- SECTION HEADERS ---- */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-label {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--navy-500);
  background: var(--navy-100);
  padding: .3rem .9rem;
  border-radius: 50px;
  margin-bottom: .8rem;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--navy-900);
  line-height: 1.25;
  margin-bottom: .9rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.1rem 0;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.navbar.scrolled {
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,.08);
  padding: .7rem 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 600;
  color: #fff;
  transition: color var(--transition);
  text-decoration: none;
}
.navbar.scrolled .nav-logo { color: var(--navy-900); }
.logo-icon { font-size: 1.6rem; color: var(--navy-400); line-height: 1; }
.logo-text { letter-spacing: -.01em; }
.logo-text strong { color: var(--navy-500); }
.navbar.scrolled .logo-text { color: var(--navy-900); }

.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.nav-link {
  padding: .5rem 1rem;
  border-radius: 50px;
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  transition: all var(--transition);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.12); }
.navbar.scrolled .nav-link { color: var(--text-secondary); }
.navbar.scrolled .nav-link:hover { color: var(--navy-900); background: var(--grey-100); }

.nav-cta {
  background: var(--navy-500) !important;
  color: #fff !important;
  padding: .55rem 1.3rem !important;
  box-shadow: 0 4px 16px rgba(26,86,219,.3);
}
.nav-cta:hover {
  background: var(--navy-600) !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,86,219,.4) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .4rem;
  border-radius: 8px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--transition);
}
.navbar.scrolled .hamburger span { background: var(--navy-900); }
.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 {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url('../images/hero_bg.png') center/cover no-repeat;
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(9,18,40,.92) 0%,
    rgba(13,27,60,.88) 50%,
    rgba(17,34,64,.82) 100%
  );
}

.particle-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 6rem;
  padding-bottom: 6rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: rgba(255,255,255,.8);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  backdrop-filter: blur(8px);
  padding: .4rem 1rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  animation: fadeInDown .8s ease both;
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 1.2rem;
  animation: fadeInUp .8s .1s ease both;
}

.hero-title-accent {
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,.75);
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: 2rem;
  animation: fadeInUp .8s .2s ease both;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
  animation: fadeInUp .8s .3s ease both;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  animation: fadeInUp .8s .4s ease both;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.stat-number {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stat-plus { font-size: 1.5rem; font-weight: 800; color: var(--navy-400); }

.stat-label {
  font-size: .8rem;
  color: rgba(255,255,255,.6);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: .2rem;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.2);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  color: rgba(255,255,255,.5);
  letter-spacing: .08em;
  text-transform: uppercase;
  animation: fadeInUp .8s .6s ease both;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255,255,255,.4);
  border-bottom: 2px solid rgba(255,255,255,.4);
  transform: rotate(45deg);
  animation: bounce 2s ease infinite;
}

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

.about-image-wrapper {
  position: relative;
}

.about-img-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: visible;
}

.about-img-frame::before {
  content: '';
  position: absolute;
  inset: -12px;
  border-radius: calc(var(--radius-xl) + 12px);
  background: linear-gradient(135deg, var(--navy-500), var(--accent-cyan));
  z-index: 0;
  opacity: .15;
}

.about-img {
  border-radius: var(--radius-xl);
  width: 100%;
  height: 440px;
  object-fit: cover;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-xl);
}

.about-img-badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  z-index: 2;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  box-shadow: var(--shadow-lg);
  min-width: 200px;
}

.badge-icon { font-size: 2rem; }
.about-img-badge strong { display: block; font-size: .95rem; color: var(--navy-900); }
.about-img-badge span { font-size: .8rem; color: var(--text-secondary); }

.about-text .section-label { margin-bottom: .6rem; }

.about-desc {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1rem;
  line-height: 1.8;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem;
  margin: 1.5rem 0;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .9rem;
  color: var(--text-secondary);
}

.highlight-icon { font-size: 1rem; display: flex; align-items: center; flex-shrink: 0; }
.highlight-icon svg { display: block; }

/* Logo SVG icon */
.logo-icon { display: flex; align-items: center; justify-content: center; color: var(--navy-400); line-height: 1; }
.logo-icon svg { display: block; }
.navbar.scrolled .logo-icon svg { color: var(--navy-500); }

/* Trophy badge icon */
.badge-icon { display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.badge-icon svg { display: block; }

/* MY flag badge in hero */
.badge-flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #cc0001 50%, #003478 50%);
  color: #fff;
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .04em;
  padding: .15rem .45rem;
  border-radius: 3px;
  line-height: 1.4;
  flex-shrink: 0;
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  border: 1px solid var(--border-color);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
  cursor: default;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--icon-color, var(--navy-500)) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  border-radius: inherit;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.service-card:hover::before { opacity: .04; }

.service-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--icon-color) 10%, transparent);
  color: var(--icon-color);
  margin-bottom: 1.25rem;
  transition: transform var(--transition);
}

.service-card:hover .service-icon-wrap { transform: scale(1.1) rotate(-3deg); }
.service-icon { width: 28px; height: 28px; }

.service-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: .65rem;
  line-height: 1.35;
}

.service-desc {
  font-size: .875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.service-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--icon-color, var(--navy-500));
  background: color-mix(in srgb, var(--icon-color, var(--navy-500)) 10%, transparent);
  padding: .2rem .7rem;
  border-radius: 50px;
}

/* ============================================================
   PORTFOLIO SECTION
   ============================================================ */
.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: .5rem 1.25rem;
  border-radius: 50px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--grey-100);
  border: 1px solid transparent;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--navy-500);
  color: #fff;
  box-shadow: 0 4px 16px rgba(26,86,219,.3);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.portfolio-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-slow);
  border: 1px solid var(--border-color);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

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

.portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,27,60,.85), rgba(26,86,219,.7));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.portfolio-view-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  backdrop-filter: blur(8px);
  border: 2px solid rgba(255,255,255,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transform: scale(.7);
  transition: transform var(--transition);
}

.portfolio-card:hover .portfolio-view-btn { transform: scale(1); }

.portfolio-info { padding: 1.5rem; }

.portfolio-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--navy-500);
  background: var(--navy-100);
  padding: .2rem .7rem;
  border-radius: 50px;
  margin-bottom: .75rem;
}

.portfolio-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: .5rem;
  line-height: 1.35;
}

.portfolio-desc {
  font-size: .875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   TESTIMONIALS SECTION
   ============================================================ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  align-items: start;
}

.testimonial-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border-color);
  position: relative;
  transition: all var(--transition-slow);
  box-shadow: var(--shadow-sm);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.testimonial-card.featured {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  color: #fff;
  border: none;
  box-shadow: var(--shadow-xl);
  transform: translateY(-8px);
}

.testimonial-card.featured:hover { transform: translateY(-14px); }

.testimonial-quote-icon {
  font-family: Georgia, serif;
  font-size: 5rem;
  line-height: .6;
  color: var(--navy-500);
  opacity: .25;
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  pointer-events: none;
  user-select: none;
}

.testimonial-card.featured .testimonial-quote-icon { color: #fff; opacity: .15; }

.testimonial-text {
  font-size: .95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.testimonial-card.featured .testimonial-text { color: rgba(255,255,255,.85); }

.testimonial-author {
  display: flex;
  align-items: center;
  gap: .85rem;
  flex-wrap: wrap;
}

.author-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  color: #fff;
  flex-shrink: 0;
}

.author-info { flex: 1; }
.author-info strong { display: block; font-size: .9rem; color: var(--navy-900); }
.testimonial-card.featured .author-info strong { color: #fff; }
.author-info span { font-size: .8rem; color: var(--text-secondary); }
.testimonial-card.featured .author-info span { color: rgba(255,255,255,.65); }

.testimonial-stars {
  color: #f59e0b;
  font-size: .95rem;
  letter-spacing: .05em;
  margin-left: auto;
}

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

.contact-info-title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 1.75rem;
}

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

.contact-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--navy-100);
  color: var(--navy-500);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: .1rem;
}

.contact-detail strong { display: block; font-size: .9rem; color: var(--navy-900); margin-bottom: .2rem; }
.contact-detail address, .contact-detail span { font-size: .875rem; color: var(--text-secondary); line-height: 1.7; }

.contact-link {
  font-size: .875rem;
  color: var(--navy-500);
  font-weight: 500;
  transition: color var(--transition);
}
.contact-link:hover { color: var(--navy-700); }

.contact-social {
  display: flex;
  gap: .75rem;
  margin-top: 2rem;
}

.social-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--grey-100);
  color: var(--grey-600);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  border: 1px solid var(--border-color);
}

.social-btn:hover {
  background: var(--navy-500);
  color: #fff;
  border-color: var(--navy-500);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(26,86,219,.3);
}

/* --- Contact Form --- */
.contact-form-wrap {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.form-title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 1.75rem;
}

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

.form-group { margin-bottom: 1.1rem; }

.form-label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--grey-700);
  margin-bottom: .4rem;
}

.required { color: #ef4444; }

.form-input {
  width: 100%;
  padding: .75rem 1rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--text-primary);
  background: var(--grey-50);
  transition: all var(--transition);
  outline: none;
  appearance: none;
}

.form-input:focus {
  border-color: var(--navy-500);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(26,86,219,.1);
}

.form-input::placeholder { color: var(--grey-400); }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .75rem center;
  background-size: 18px;
  padding-right: 2.5rem;
  cursor: pointer;
}

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

.form-error {
  display: block;
  font-size: .78rem;
  color: #ef4444;
  margin-top: .3rem;
  min-height: 1em;
}

/* Ensure the HTML `hidden` attribute always wins over CSS display rules */
[hidden] { display: none !important; }

.form-success {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: #f0fdf4;
  border: 1px solid #86efac;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  color: #15803d;
  margin-top: 1rem;
}

.form-success strong { display: block; font-size: .95rem; }
.form-success span { font-size: .85rem; }

.form-server-error {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  color: #b91c1c;
  margin-top: 1rem;
  font-size: .875rem;
  line-height: 1.5;
  animation: fadeInUp .3s ease both;
}

.form-server-error svg { flex-shrink: 0; color: #ef4444; }


/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--navy-900);
  color: rgba(255,255,255,.75);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand .footer-logo {
  margin-bottom: 1rem;
  color: #fff;
}

.footer-desc {
  font-size: .875rem;
  line-height: 1.75;
  color: rgba(255,255,255,.6);
  max-width: 280px;
}

.footer-links-col h4 {
  font-family: var(--font-head);
  font-size: .85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: rgba(255,255,255,.4);
  margin-bottom: 1.2rem;
}

.footer-links-col ul li { margin-bottom: .6rem; }

.footer-links-col ul li a {
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  transition: color var(--transition);
}

.footer-links-col ul li a:hover { color: #fff; }

.footer-address {
  font-size: .875rem;
  line-height: 1.8;
  color: rgba(255,255,255,.6);
}

.footer-bottom {
  padding: 1.5rem 0;
  text-align: center;
}

.footer-bottom p {
  font-size: .8rem;
  color: rgba(255,255,255,.35);
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--navy-500);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(26,86,219,.4);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: all var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--navy-600);
  transform: translateY(-3px);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(5px); }
}

@keyframes countUp { from { opacity: 0; } to { opacity: 1; } }

/* Scroll Animations */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}

[data-animate="fade-left"] { transform: translateX(-30px); }
[data-animate="fade-right"] { transform: translateX(30px); }

[data-animate].animated {
  opacity: 1;
  transform: none;
}

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .about-grid { gap: 2.5rem; }
}

@media (max-width: 900px) {
  .testimonials-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .testimonial-card.featured { transform: none; }
  .testimonial-card.featured:hover { transform: translateY(-4px); }
  .contact-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .about-img { height: 320px; }
  .about-img-badge { right: 1rem; bottom: -1.2rem; }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 768px) {
  :root { --section-py: 3.5rem; }

  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 0; right: 0;
    width: 280px;
    height: 100vh;
    background: var(--navy-900);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 2rem;
    gap: .5rem;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 999;
    box-shadow: -10px 0 40px rgba(0,0,0,.3);
  }

  .nav-links.open { transform: translateX(0); }
  .nav-link { color: rgba(255,255,255,.8) !important; font-size: 1.1rem; width: 100%; padding: .75rem 1rem; }
  .nav-link:hover { color: #fff !important; background: rgba(255,255,255,.1) !important; }
  .nav-cta { background: var(--navy-500) !important; color: #fff !important; margin-top: .5rem; }

  .hero-title { font-size: 2.2rem; }
  .hero-tagline { font-size: .95rem; }
  .hero-actions { gap: .75rem; }
  .hero-stats { gap: 1.25rem; }
  .stat-number { font-size: 1.6rem; }

  .about-highlights { grid-template-columns: 1fr; }

  .services-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .portfolio-grid { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 1.75rem; }

  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .footer-desc { max-width: 100%; }
  .hide-mobile { display: none; }
}

@media (max-width: 480px) {
  .hero-badge { font-size: .75rem; }
  .hero-title { font-size: 1.9rem; }
  .section-title { font-size: 1.7rem; }
  .back-to-top { bottom: 1.25rem; right: 1.25rem; }
}