/* ═══════════════════════════════════════════════════════════
   FederSoft – styles.css
   Premium Corporate Website
   Color Palette:
     Primary Accent   : #C5630C
     Secondary Accent : #A47F6F
     Dark Green       : #416057
     Dark Background  : #33353A
     Deep Background  : #1A1F24
═══════════════════════════════════════════════════════════ */

/* ──────────────────────────── CSS VARIABLES ──────────────────────────── */
:root {
  --accent:       #C5630C;
  --accent-light: #E07A2F;
  --accent-dim:   rgba(197, 99, 12, 0.15);
  --secondary:    #A47F6F;
  --secondary-dim:rgba(164, 127, 111, 0.12);
  --green:        #416057;
  --green-light:  #527A6E;
  --green-dim:    rgba(65, 96, 87, 0.2);
  --bg-dark:      #33353A;
  --bg-deep:      #1A1F24;
  --bg-card:      #272A2F;
  --bg-card2:     #2C2F35;
  --border:       rgba(255,255,255,0.07);
  --border-accent:rgba(197, 99, 12, 0.3);
  --text-primary: #F0EDE8;
  --text-secondary:#B8B2AA;
  --text-muted:   #7A7570;
  --white:        #FFFFFF;
  --shadow-sm:    0 2px 8px rgba(0,0,0,0.35);
  --shadow-md:    0 8px 32px rgba(0,0,0,0.45);
  --shadow-lg:    0 20px 60px rgba(0,0,0,0.55);
  --shadow-glow:  0 0 40px rgba(197, 99, 12, 0.2);
  --radius-sm:    6px;
  --radius:       12px;
  --radius-lg:    20px;
  --radius-xl:    28px;
  --transition:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;
  --nav-height:   72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-main); border: none; background: none; }
input, textarea { font-family: var(--font-main); }

::selection { background: var(--accent-dim); color: var(--accent-light); }

/* ──────────────────────────── SCROLLBAR ──────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ──────────────────────────── TYPOGRAPHY ──────────────────────────── */
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--secondary), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

/* ──────────────────────────── BUTTONS ──────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: var(--transition);
}
.btn:hover::before { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white);
  box-shadow: 0 4px 20px rgba(197,99,12,0.35);
}
.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(197,99,12,0.5);
  transform: translateY(-2px);
}

.btn-ghost {
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.btn-lg { padding: 15px 36px; font-size: 1rem; border-radius: var(--radius-lg); }
.btn-full { width: 100%; justify-content: center; }

/* ──────────────────────────── LAYOUT UTILITIES ──────────────────────────── */
.section { padding: 100px 0; position: relative; overflow: hidden; }
.dark-section { background: var(--bg-dark); }

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .section-title { margin-bottom: 1rem; }
.section-header .section-subtitle { margin-top: 0; }

/* ──────────────────────────── GLASS CARD ──────────────────────────── */
.glass-card {
  background: rgba(39, 42, 47, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ──────────────────────────── REVEAL ANIMATION ──────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════ 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);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(26, 31, 36, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.nav-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo { display: flex; align-items: center; flex-shrink: 0; }
.logo-img { height: 38px; width: auto; transition: var(--transition); }
.logo-img:hover { opacity: 0.85; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 4px 12px;
}

.lang-btn {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 3px 2px;
  border-radius: 4px;
  transition: var(--transition);
}
.lang-btn:hover { color: var(--text-primary); }
.lang-btn.active { color: var(--accent); }

.lang-divider { color: var(--border); font-size: 0.8rem; }

.nav-cta { padding: 9px 22px; font-size: 0.88rem; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  margin-left: auto;
}
.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open .hamburger-line:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open .hamburger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open .hamburger-line:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ═══════════════════════════ HERO ═══════════════════════════ */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  position: relative;
  padding: calc(var(--nav-height) + 40px) 24px 80px;
  max-width: 1300px;
  margin: 0 auto;
  overflow: visible;
}

#particleCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(197,99,12,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(197,99,12,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  padding: 7px 18px;
  border-radius: 50px;
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(197,99,12,0.6); }
  50%       { box-shadow: 0 0 0 6px rgba(197,99,12,0); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

/* Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  padding: 24px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: 8px 16px;
  min-width: 90px;
}

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.stat-suffix { font-size: 1.4rem; font-weight: 900; color: var(--accent); }

.stat-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 480px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  animation: orb-float 8s ease-in-out infinite;
}
.orb-1 {
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(197,99,12,0.35) 0%, transparent 70%);
  top: 10%; left: 15%;
}
.orb-2 {
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(65,96,87,0.4) 0%, transparent 70%);
  bottom: 15%; right: 10%;
  animation-delay: -3s;
}
.orb-3 {
  width: 150px; height: 150px;
  background: radial-gradient(circle, rgba(164,127,111,0.3) 0%, transparent 70%);
  top: 50%; right: 30%;
  animation-delay: -5s;
}

@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); }
  33%       { transform: translateY(-20px) scale(1.05); }
  66%       { transform: translateY(10px) scale(0.97); }
}

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(39, 42, 47, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  animation: card-float 6s ease-in-out infinite;
  transition: var(--transition);
}
.floating-card:hover { border-color: var(--border-accent); transform: scale(1.04) !important; }

.card-1 { top: 12%; left: 0; animation-delay: 0s; }
.card-2 { top: 45%; right: -10px; animation-delay: -2s; }
.card-3 { bottom: 12%; left: 10%; animation-delay: -4s; }

@keyframes card-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

.fc-icon { font-size: 1.5rem; }
.fc-text { font-size: 0.82rem; line-height: 1.4; }
.fc-text strong { color: var(--text-primary); font-weight: 600; }
.fc-text small { color: var(--text-muted); }

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  z-index: 2;
}

.scroll-dot {
  display: block;
  width: 28px;
  height: 44px;
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: 14px;
  position: relative;
}
.scroll-dot::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  80%       { transform: translateX(-50%) translateY(16px); opacity: 0; }
}

/* ═══════════════════════════ ABOUT ═══════════════════════════ */
.about-section { background: var(--bg-deep); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content .section-tag { margin-bottom: 1rem; }
.about-content .section-title { margin-bottom: 1.4rem; }

.about-text {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.2rem;
  font-size: 1rem;
}

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 2rem;
  padding: 24px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.pillar {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.pillar-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
}

.pillar strong { display: block; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.pillar p { font-size: 0.9rem; color: var(--text-secondary); }

/* About Visual */
.about-visual { position: relative; }

.about-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.terminal-dot.red    { background: #FF5F57; }
.terminal-dot.yellow { background: #FFBD2E; }
.terminal-dot.green  { background: #28C840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.code-block { font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.8; }
.code-line { display: block; }
.code-keyword { color: #C792EA; }
.code-class    { color: #82AAFF; }
.code-string   { color: #C3E88D; }
.code-fn       { color: #82AAFF; }

.about-accent-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.accent-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}
.accent-card:hover { border-color: var(--green); transform: translateY(-2px); }

.accent-card--orange:hover { border-color: var(--accent); }

.accent-num {
  display: block;
  font-size: 2rem;
  font-weight: 900;
  color: var(--green-light);
  letter-spacing: -0.03em;
}
.accent-card--orange .accent-num { color: var(--accent); }

.accent-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ═══════════════════════════ SERVICES ═══════════════════════════ */
.services-section { background: var(--bg-dark); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--secondary));
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover,
.service-card:focus {
  border-color: var(--border-accent);
  background: var(--bg-card2);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow), var(--shadow-md);
  outline: none;
}

.service-card:hover::before,
.service-card:focus::before { opacity: 1; }

.service-icon-wrap {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  margin-bottom: 1.2rem;
  transition: var(--transition);
}
.service-card:hover .service-icon-wrap {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-color: transparent;
}

.service-icon { font-size: 1.5rem; }

.service-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.service-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.service-tags li {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  background: var(--green-dim);
  border: 1px solid rgba(65,96,87,0.3);
  border-radius: 50px;
  color: var(--green-light);
  letter-spacing: 0.04em;
}

/* ═══════════════════════════ TECHNOLOGIES ═══════════════════════════ */
.tech-section { background: var(--bg-deep); }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.tech-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: default;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.tech-item:hover,
.tech-item:focus {
  border-color: var(--accent);
  background: var(--bg-card2);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(197,99,12,0.15);
  outline: none;
}

.tech-logo {
  width: 60px; height: 60px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white);
  border-radius: var(--radius);
  letter-spacing: -0.02em;
  transition: var(--transition);
}

.tech-logo--mono   { background: linear-gradient(135deg, #7B68EE, #9B88FF); }
.tech-logo--green  { background: linear-gradient(135deg, var(--green), var(--green-light)); }
.tech-logo--blue   { background: linear-gradient(135deg, #336791, #4A8CC2); }
.tech-logo--fire   { background: linear-gradient(135deg, #B22222, #E04A3A); }
.tech-logo--yellow { background: linear-gradient(135deg, #3572A5, #4E8DC9); }
.tech-logo--react  { background: linear-gradient(135deg, #20232A, #282C34); font-size: 1.8rem; }
.tech-logo--docker { background: linear-gradient(135deg, #0db7ed, #0A9ED1); font-size: 1.8rem; }
.tech-logo--ai     { background: linear-gradient(135deg, var(--accent), var(--secondary)); font-size: 1.8rem; }

.tech-item:hover .tech-logo { transform: scale(1.1) rotate(-3deg); }

.tech-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}
.tech-item:hover .tech-name { color: var(--text-primary); }

/* ═══════════════════════════ AI & DATA ═══════════════════════════ */
.ai-section { position: relative; overflow: hidden; }

.ai-bg-network {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='30' cy='30' r='2' fill='%23C5630C'/%3E%3C/svg%3E");
  background-size: 60px 60px;
  pointer-events: none;
}

.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.ai-capabilities {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 2rem;
}

.ai-cap {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.ai-cap:hover {
  border-color: var(--border-accent);
  background: var(--accent-dim);
}

.ai-cap-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
}
.ai-cap strong { display: block; font-size: 0.88rem; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.ai-cap p { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

/* AI Visualization */
.ai-visual { display: flex; justify-content: center; align-items: center; }

.ai-viz-container {
  position: relative;
  width: 300px; height: 300px;
}

.ai-node {
  position: absolute;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  animation: node-pulse 4s ease-in-out infinite;
  border: 2px solid transparent;
  transition: var(--transition);
}
.ai-node:hover { transform: scale(1.15) !important; z-index: 10; }

.central-node {
  width: 80px; height: 80px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white);
  font-size: 1rem;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 40px rgba(197,99,12,0.4);
  animation: central-glow 3s ease-in-out infinite;
}

@keyframes central-glow {
  0%, 100% { box-shadow: 0 0 40px rgba(197,99,12,0.4); }
  50%       { box-shadow: 0 0 60px rgba(197,99,12,0.7); }
}

.node-1  { top: 10%; left: 18%; width: 50px; height: 50px; background: rgba(65,96,87,0.4); border-color: var(--green); color: var(--green-light); animation-delay: -0.5s; }
.node-2  { top: 10%; right: 18%; width: 50px; height: 50px; background: rgba(197,99,12,0.2); border-color: var(--accent); color: var(--accent); animation-delay: -1s; }
.node-3  { top: 50%; left: 0; transform: translateY(-50%); width: 44px; height: 44px; background: rgba(164,127,111,0.2); border-color: var(--secondary); color: var(--secondary); animation-delay: -1.5s; }
.node-4  { top: 50%; right: 0; transform: translateY(-50%); width: 44px; height: 44px; background: rgba(65,96,87,0.3); border-color: var(--green); color: var(--green-light); animation-delay: -2s; }
.node-5  { bottom: 10%; left: 18%; width: 50px; height: 50px; background: rgba(164,127,111,0.2); border-color: var(--secondary); color: var(--secondary); animation-delay: -2.5s; }
.node-6  { bottom: 10%; right: 18%; width: 50px; height: 50px; background: rgba(197,99,12,0.2); border-color: var(--accent); color: var(--accent); animation-delay: -3s; }

@keyframes node-pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.06); }
}

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

/* ═══════════════════════════ PROJECTS ═══════════════════════════ */
.projects-section { background: var(--bg-deep); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
  cursor: default;
}
.project-card:hover,
.project-card:focus {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow), var(--shadow-md);
  outline: none;
}

.project-card--featured { grid-column: span 2; display: grid; grid-template-columns: 1fr 1fr; }

.project-img-wrap { position: relative; overflow: hidden; }

.project-card--featured .project-img-wrap { min-height: 260px; }
.project-card:not(.project-card--featured) .project-img-wrap { height: 180px; }

.project-placeholder {
  width: 100%; height: 100%;
  min-height: inherit;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-card2) 50%, rgba(197,99,12,0.05) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.project-icon-large { font-size: 3.5rem; opacity: 0.6; }

.project-shimmer {
  position: absolute;
  top: -50%;
  left: -60%;
  width: 50%;
  height: 200%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255,255,255,0.04),
    transparent
  );
  transform: skewX(-20deg);
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0%   { left: -60%; }
  100% { left: 120%; }
}

.project-badge-tag {
  position: absolute;
  top: 16px; left: 16px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white);
  padding: 5px 12px;
  border-radius: 50px;
}

.project-body { padding: 24px; }
.project-title { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.project-desc  { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }

.project-stats {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.project-stats span {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  border-radius: 50px;
}

/* ═══════════════════════════ WHY FEDERSOFT ═══════════════════════════ */
.why-section { background: var(--bg-dark); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.why-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--accent));
  transform: scaleX(0);
  transition: var(--transition);
}

.why-card:hover,
.why-card:focus {
  border-color: rgba(65,96,87,0.4);
  background: var(--bg-card2);
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(65,96,87,0.12);
  outline: none;
}
.why-card:hover::after,
.why-card:focus::after { transform: scaleX(1); }

.why-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
  filter: grayscale(0.2);
}

.why-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.75rem; }
.why-card p  { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }

/* ═══════════════════════════ CONTACT ═══════════════════════════ */
.contact-section { background: var(--bg-deep); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.contact-info .section-title { margin-bottom: 1.2rem; }
.contact-info .about-text { margin-bottom: 2rem; }

.contact-details { display: flex; flex-direction: column; gap: 20px; margin-top: 2rem; }

.contact-detail-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-detail-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  flex-shrink: 0;
}

.contact-detail-item strong { display: block; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.contact-detail-item p { font-size: 0.9rem; color: var(--text-secondary); }

/* Form */
.contact-form { padding: 40px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.04);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(197,99,12,0.05);
  box-shadow: 0 0 0 3px rgba(197,99,12,0.1);
}

.form-group input:valid:not(:placeholder-shown) {
  border-color: var(--green);
}

#submitBtn {
  margin-top: 8px;
  padding: 15px;
  font-size: 1rem;
}

.btn-icon { font-size: 1.1rem; transition: transform var(--transition); }
#submitBtn:hover .btn-icon { transform: translateX(4px); }

.form-success {
  display: none;
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--green-light);
  padding: 12px;
  background: var(--green-dim);
  border: 1px solid rgba(65,96,87,0.3);
  border-radius: var(--radius);
}
.form-success.show { display: block; animation: fadeIn 0.4s ease; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ═══════════════════════════ FOOTER ═══════════════════════════ */
.footer {
  background: #111418;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}

.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.footer-logo { height: 34px; width: auto; margin-bottom: 16px; opacity: 0.85; }
.footer-tagline { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; max-width: 220px; }

.footer-links-group h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

.footer-links-group ul { display: flex; flex-direction: column; gap: 10px; }

.footer-links-group a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-links-group a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.footer-copy { font-size: 0.82rem; color: var(--text-muted); }

.footer-lang-switch { display: flex; align-items: center; gap: 10px; }
.footer-lang-btn { font-size: 0.75rem; font-weight: 700; color: var(--text-muted); }
.footer-lang-btn.active { color: var(--accent); }
.footer-lang-switch span { color: var(--border); }

/* ═══════════════════════════ BACK TO TOP ═══════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(197,99,12,0.4);
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  pointer-events: none;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(197,99,12,0.55); }

/* ═══════════════════════════ RESPONSIVE ═══════════════════════════ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: repeat(5, 1fr); }
  .hero { grid-template-columns: 1fr; gap: 20px; text-align: center; }
  .hero-subtitle { max-width: 100%; margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .ai-grid { grid-template-columns: 1fr; gap: 40px; }
  .ai-visual { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .project-card--featured { grid-column: span 1; display: block; }
}

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

  .section { padding: 70px 0; }

  .nav-links, .nav-cta {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: rgba(26,31,36,0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 4px;
    z-index: 999;
  }

  .nav-links.open .nav-link { padding: 12px 16px; font-size: 1rem; }

  .hamburger { display: flex; }
  .nav-actions { display: flex; gap: 8px; }
  .nav-cta { display: none; }

  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-stats { flex-direction: column; gap: 12px; }
  .stat-divider { display: none; }
  .hero-stats .stat-item { display: flex; justify-content: space-between; align-items: center; text-align: left; }
  .hero-stats .stat-item .stat-label { text-align: right; }

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

  .why-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr; }

  .ai-capabilities { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

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

@media (max-width: 480px) {
  .section-container { padding: 0 16px; }
  .services-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .contact-form { padding: 24px 20px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* ─── Accessibility: respect reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { transition: none; }
}