/* ═══════════════════════════════════════════════════════════
   ElevateX Software Engineering — style.css
   Premium Dark Theme · 2026
═══════════════════════════════════════════════════════════ */

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

:root {
  color-scheme: dark;
  --bg:         #080c14;
  --bg-2:       #0b0f19;
  --bg-3:       #0f1521;
  --surface:    rgba(255,255,255,0.04);
  --surface-2:  rgba(255,255,255,0.07);
  --border:     rgba(255,255,255,0.08);
  --border-2:   rgba(59,130,246,0.25);

  --blue:       #3b82f6;
  --blue-bright:#60a5fa;
  --blue-dark:  #1d4ed8;
  --blue-glow:  rgba(59,130,246,0.35);

  --white:      #ffffff;
  --heading-color: #ffffff;
  --text:       #e2e8f0;
  --text-muted: #64748b;
  --text-dim:   #94a3b8;

  --gradient:   linear-gradient(135deg, #3b82f6, #60a5fa);
  --gradient-hero: linear-gradient(135deg, #ffffff 0%, #93c5fd 40%, #3b82f6 100%);

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --radius:     12px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  --shadow:     0 4px 24px rgba(0,0,0,0.4);
  --shadow-blue: 0 0 40px rgba(59,130,246,0.25);

  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 0.6s cubic-bezier(0.4,0,0.2,1);
}

[data-theme="light"] {
  color-scheme: light;
  --bg:         #f8fafc;
  --bg-2:       #f1f5f9;
  --bg-3:       #e2e8f0;
  --surface:    rgba(15,23,42,0.04);
  --surface-2:  rgba(15,23,42,0.07);
  --border:     rgba(15,23,42,0.1);
  --border-2:   rgba(59,130,246,0.35);
  --heading-color: #0f172a;
  --text:       #334155;
  --text-muted: #64748b;
  --text-dim:   #475569;
  --gradient-hero: linear-gradient(135deg, #1d4ed8 0%, #3b82f6 55%, #93c5fd 100%);
}

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

[data-theme="light"] #navbar.scrolled {
  background: rgba(248,250,252,0.92);
  box-shadow: 0 4px 32px rgba(15,23,42,0.08);
}

[data-theme="light"] .mobile-menu {
  background: rgba(248,250,252,0.98);
}

[data-theme="light"] .hamburger span {
  background: var(--heading-color);
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group select,
[data-theme="light"] .form-group textarea {
  background: rgba(255,255,255,0.85);
  color: var(--heading-color);
}

[data-theme="light"] .form-group select option {
  background: #fff;
  color: var(--heading-color);
}

[data-theme="light"] #particles-canvas {
  opacity: 0.22;
}

[data-theme="light"] .nav-logo svg .logo-mark {
  fill: var(--heading-color);
}

[data-theme="light"] .footer-brand .nav-logo svg .logo-mark,
[data-theme="light"] .loader-logo svg .logo-mark {
  fill: var(--heading-color);
}

[data-theme="light"] .footer-col ul a:hover,
[data-theme="light"] .footer-bottom-links a:hover {
  color: var(--blue);
}

[data-theme="light"] .portfolio-card:hover {
  box-shadow: 0 24px 60px rgba(15,23,42,0.12);
}

[data-theme="light"] .service-card:hover {
  box-shadow: 0 20px 60px rgba(15,23,42,0.1), 0 0 40px rgba(59,130,246,0.08);
}

[data-theme="light"] .mobile-link:hover {
  color: var(--heading-color);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* ─── SELECTION ─── */
::selection { background: rgba(59,130,246,0.35); color: white; }

/* ─── CANVAS PARTICLES ─── */
#particles-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ─── CUSTOM CURSOR ─── */
#cursor, #cursor-trail {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

#cursor {
  width: 10px; height: 10px;
  background: var(--blue);
  box-shadow: 0 0 12px var(--blue);
}

#cursor-trail {
  width: 36px; height: 36px;
  border: 1.5px solid rgba(59,130,246,0.5);
  transition: transform 0.12s ease, width 0.2s, height 0.2s;
}

body:has(a:hover) #cursor-trail,
body:has(button:hover) #cursor-trail {
  width: 52px; height: 52px;
  border-color: var(--blue);
}

@media (pointer: coarse) {
  #cursor, #cursor-trail { display: none; }
}

/* ─── LOADER ─── */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.loader-logo { animation: loader-pulse 1.4s ease-in-out infinite; }

@keyframes loader-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.95); }
}

.loader-bar {
  width: 200px; height: 3px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
}

.loader-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient);
  border-radius: 3px;
  animation: loader-fill 1.6s ease forwards;
}

@keyframes loader-fill {
  0% { width: 0%; }
  100% { width: 100%; }
}

.loader-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  text-transform: lowercase;
}

/* ─── TYPOGRAPHY ─── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--heading-color);
}

.gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

a { text-decoration: none; color: inherit; }

/* ─── LAYOUT HELPERS ─── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 120px 0;
  position: relative;
  z-index: 1;
}

.desktop-only { display: inline; }
@media (max-width: 768px) { .desktop-only { display: none; } }

/* ─── GLASS ─── */
.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* ─── BUTTONS ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--gradient);
  color: white;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 0 0 0 var(--blue-glow);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #60a5fa, #3b82f6);
  opacity: 0;
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--blue-glow), 0 0 0 0 var(--blue-glow);
}

.btn-primary:hover::before { opacity: 1; }
.btn-primary > * { position: relative; z-index: 1; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 50px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.btn-ghost:hover {
  border-color: var(--blue);
  color: var(--blue-bright);
  background: rgba(59,130,246,0.06);
  transform: translateY(-2px);
}

/* ─── SECTION HEADER ─── */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 72px;
}

.section-header h2 { font-size: clamp(2rem, 4vw, 2.8rem); margin: 12px 0 16px; }
.section-header p { color: var(--text-dim); font-size: 1.05rem; }

.section-tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: 50px;
  font-size: 0.78rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-bright);
}

/* ─── REVEAL ANIMATIONS ─── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }
.reveal[data-delay="6"] { transition-delay: 0.6s; }
.reveal[data-delay="7"] { transition-delay: 0.7s; }
.reveal[data-delay="8"] { transition-delay: 0.8s; }
.reveal[data-delay="9"] { transition-delay: 0.9s; }

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

/* ══════════════════════════════════
   NAVBAR
══════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.3s ease;
  padding: 20px 0;
}

#navbar.scrolled {
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 32px rgba(0,0,0,0.3);
  padding: 12px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--heading-color);
  flex-shrink: 0;
}

.nav-logo em {
  font-style: normal;
  color: var(--blue);
}

.nav-logo svg { flex-shrink: 0; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  display: block;
  padding: 7px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dim);
  border-radius: 8px;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--heading-color);
  background: rgba(255,255,255,0.06);
}

[data-theme="light"] .nav-link:hover,
[data-theme="light"] .nav-link.active {
  background: rgba(59,130,246,0.08);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  background: var(--gradient);
  color: white;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition);
  flex-shrink: 0;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--blue-glow);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--heading-color);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.lang-switch {
  display: flex;
  align-items: center;
  padding: 3px;
  border-radius: 50px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.lang-btn {
  padding: 5px 11px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn:hover {
  color: var(--text-dim);
}

.lang-btn.active {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 2px 10px var(--blue-glow);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.theme-toggle:hover {
  border-color: var(--border-2);
  color: var(--blue);
  background: var(--surface-2);
}

.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); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(8,12,20,0.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transform: translateY(-100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}

.mobile-menu.open {
  transform: translateY(0);
  display: flex;
}

.mobile-menu ul { list-style: none; text-align: center; }

.mobile-link {
  display: block;
  padding: 16px 40px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dim);
  transition: var(--transition);
}

.mobile-link:hover { color: white; }

.mobile-cta {
  margin-top: 24px;
  font-size: 1rem;
}

/* ══════════════════════════════════
   HERO
══════════════════════════════════ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.hero-glow-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.18) 0%, transparent 70%);
  top: -100px; left: 50%;
  transform: translateX(-50%);
  animation: glow-drift 8s ease-in-out infinite;
}

.hero-glow-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(59,130,246,0.14) 0%, transparent 70%);
  bottom: 0; right: -100px;
  animation: glow-drift 10s ease-in-out infinite reverse;
}

@keyframes glow-drift {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-30px); }
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--blue-bright);
  margin-bottom: 28px;
}

.badge-dot {
  width: 8px; height: 8px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 8px #22c55e;
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-dim);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-ctas {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  padding: 28px 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(16px);
  max-width: 640px;
  margin: 0 auto;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--heading-color);
}

.stat span:not(.stat-num) {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--blue);
}

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

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
  margin: 0 24px;
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}

.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, transparent, var(--blue));
  animation: scroll-hint 2.5s ease-in-out infinite;
}

@keyframes scroll-hint {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

.hero-scroll-hint span {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ══════════════════════════════════
   SERVICES
══════════════════════════════════ */
#services { background: var(--bg-2); }

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

.service-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  cursor: default;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  border-color: var(--border-2);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 40px rgba(59,130,246,0.08);
}

.service-card:hover::before { opacity: 0.04; }

.service-card > * { position: relative; z-index: 1; }

.service-icon {
  width: 52px; height: 52px;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--blue);
  margin-bottom: 20px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: rgba(59,130,246,0.2);
  box-shadow: 0 0 20px rgba(59,130,246,0.3);
}

.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.65;
}

.card-arrow {
  position: absolute;
  top: 24px; right: 24px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0;
  transform: translateY(4px);
  transition: var(--transition);
}

.service-card:hover .card-arrow {
  opacity: 1;
  transform: translateY(0);
  color: var(--blue);
}

/* ══════════════════════════════════
   ABOUT
══════════════════════════════════ */
#about { overflow: hidden; }

.about-glow {
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
  filter: blur(60px);
  left: -100px; top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

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

.about-left .section-tag { margin-bottom: 16px; display: inline-block; }

.about-left h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 20px;
}

.about-lead {
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.about-body {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 36px;
}

.about-pillars { display: flex; flex-direction: column; gap: 16px; }

.pillar {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.pillar:hover {
  border-color: var(--border-2);
  background: var(--surface-2);
}

.pillar > i {
  color: var(--blue);
  font-size: 1rem;
  margin-top: 3px;
  flex-shrink: 0;
}

.pillar strong { display: block; font-size: 0.95rem; margin-bottom: 2px; }
.pillar span { font-size: 0.83rem; color: var(--text-muted); }

/* About Visual */
.about-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.av-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  border-color: var(--border-2) !important;
}

.av-card span {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
}

.av-card span em { font-style: normal; color: var(--blue); }

.av-card p {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.av-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.metric {
  padding: 20px;
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
}

.metric:hover {
  border-color: var(--border-2);
  transform: translateY(-3px);
}

.metric-num {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--heading-color);
}

.metric span { font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; color: var(--blue); }

.metric p {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

/* ══════════════════════════════════
   TECHNOLOGIES
══════════════════════════════════ */
#technologies { background: var(--bg-2); }

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

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

.tech-card:hover {
  border-color: var(--border-2);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.25), 0 0 30px color-mix(in srgb, var(--glow) 20%, transparent);
}

.tech-icon {
  font-size: 2rem;
  color: var(--glow, var(--blue));
  transition: var(--transition);
  filter: drop-shadow(0 0 0px var(--glow, transparent));
}

.tech-card:hover .tech-icon {
  filter: drop-shadow(0 0 12px var(--glow, var(--blue)));
  transform: scale(1.1);
}

.tech-card span {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  transition: var(--transition);
}

.tech-card:hover span { color: var(--heading-color); }

/* ══════════════════════════════════
   PORTFOLIO
══════════════════════════════════ */
#portfolio { overflow: hidden; }

.portfolio-glow {
  position: absolute;
  width: 600px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.07) 0%, transparent 70%);
  filter: blur(80px);
  right: -150px; top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

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

.portfolio-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.portfolio-card:hover {
  border-color: var(--border-2);
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.3);
}

.portfolio-wide { grid-column: span 2; }

.portfolio-img {
  height: 200px;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-wide .portfolio-img { height: 220px; }

.port-placeholder {
  font-size: 3rem;
  color: rgba(255,255,255,0.25);
  position: relative;
  z-index: 1;
  transition: var(--transition);
}

.portfolio-card:hover .port-placeholder {
  color: rgba(255,255,255,0.5);
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 16px;
  opacity: 0;
  transition: var(--transition);
}

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

.port-link {
  width: 40px; height: 40px;
  background: white;
  color: black;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: var(--transition);
  transform: translateY(8px);
}

.portfolio-card:hover .port-link { transform: translateY(0); }

.port-link:hover { background: var(--blue); color: white; }

.portfolio-info { padding: 20px 22px 22px; }

.port-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.port-tags span {
  padding: 3px 10px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 50px;
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--blue-bright);
  font-family: var(--font-display);
}

.portfolio-info h3 { font-size: 1rem; margin-bottom: 6px; }
.portfolio-info p { font-size: 0.85rem; color: var(--text-dim); line-height: 1.6; }

/* ══════════════════════════════════
   PROCESS
══════════════════════════════════ */
#process { background: var(--bg-2); }

.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.process-line {
  position: absolute;
  top: 32px;
  left: calc(10% + 20px);
  right: calc(10% + 20px);
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-2), transparent);
  z-index: 0;
}

.process-step {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.step-number {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 0 24px var(--blue-glow);
}

.step-content {
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
  width: 100%;
}

.step-content:hover {
  border-color: var(--border-2);
  transform: translateY(-4px);
}

.step-icon {
  font-size: 1.3rem;
  color: var(--blue);
  margin-bottom: 12px;
}

.step-content h3 { font-size: 1rem; margin-bottom: 8px; }
.step-content p { font-size: 0.8rem; color: var(--text-dim); line-height: 1.6; }

/* ══════════════════════════════════
   TESTIMONIALS
══════════════════════════════════ */
#testimonials { overflow: hidden; }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: var(--transition);
}

.testimonial-card:hover {
  border-color: var(--border-2);
  transform: translateY(-4px);
}

.quote-icon {
  font-size: 1.5rem;
  color: var(--blue);
  opacity: 0.6;
}

.testimonial-card p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.75;
  flex: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.testimonial-author strong { display: block; font-size: 0.9rem; }
.testimonial-author span { font-size: 0.8rem; color: var(--text-muted); }

.stars { color: #f59e0b; font-size: 0.85rem; letter-spacing: 2px; }

/* ══════════════════════════════════
   CONTACT
══════════════════════════════════ */
#contact { background: var(--bg-2); overflow: hidden; }

.contact-glow {
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
  filter: blur(80px);
  right: -100px; top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: start;
}

.contact-left .section-tag { margin-bottom: 16px; display: inline-block; }
.contact-left h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); margin-bottom: 16px; }
.contact-left > p { color: var(--text-dim); margin-bottom: 40px; }

.contact-items { display: flex; flex-direction: column; gap: 16px; }

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

.ci-icon {
  width: 44px; height: 44px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  flex-shrink: 0;
}

.contact-item strong { display: block; font-size: 0.9rem; }
.contact-item span { font-size: 0.85rem; color: var(--text-muted); }

/* Contact Form */
.contact-form {
  padding: 40px;
  border-radius: var(--radius-xl);
}

.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: 0.83rem;
  font-weight: 600;
  font-family: var(--font-display);
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: white;
  outline: none;
  transition: var(--transition);
  resize: vertical;
  appearance: none;
}

.form-group select option { background: var(--bg-3); color: white; }

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  background: rgba(59,130,246,0.05);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.form-submit {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 1rem;
  margin-top: 4px;
}

.form-success {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px;
  margin-top: 12px;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.25);
  border-radius: var(--radius);
  color: #4ade80;
  font-size: 0.9rem;
}

.form-success.visible { display: flex; }

/* ══════════════════════════════════
   FOOTER
══════════════════════════════════ */
#footer { background: var(--bg); border-top: 1px solid var(--border); }

.footer-top { padding: 72px 0; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand .nav-logo { margin-bottom: 16px; }

.footer-brand > p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 260px;
}

.social-links { display: flex; gap: 10px; }

.social-links a {
  width: 38px; height: 38px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.social-links a:hover {
  background: rgba(59,130,246,0.15);
  border-color: var(--border-2);
  color: var(--blue);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer-col ul a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-col ul a:hover { color: white; padding-left: 4px; }

.footer-bottom {
  padding: 20px 0;
  border-top: 1px solid var(--border);
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 0.83rem; color: var(--text-muted); }

.footer-bottom-links { display: flex; gap: 20px; }

.footer-bottom-links a {
  font-size: 0.83rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-bottom-links a:hover { color: white; }

/* ══════════════════════════════════
   RESPONSIVE
══════════════════════════════════ */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: repeat(4, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-wide { grid-column: span 2; }
  .process-timeline { grid-template-columns: repeat(3, 1fr); }
  .process-line { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: span 3; }
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .tech-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .nav-container { gap: 12px; }
  .nav-tools { gap: 6px; }
  .lang-btn { padding: 4px 8px; font-size: 0.68rem; }
  .theme-toggle { width: 36px; height: 36px; font-size: 0.9rem; }
  section { padding: 80px 0; }

  .services-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-wide { grid-column: span 1; }
  .process-timeline { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { padding: 20px 24px; gap: 0; }
  .stat-divider { margin: 0 12px; }
  .stat-num, .stat span:not(.stat-num) { font-size: 1.4rem; }
  .contact-form { padding: 24px; }
  .av-metrics { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.4rem; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { width: 80px; height: 1px; margin: 0; }
}