/* ═══════════════════════════════════════════════════
   VanguardArc - Global Styles
   ═══════════════════════════════════════════════════ */

:root {
  --bg-color: #d9d9d9;
  --text-main: #333333;
  --text-muted: #666666;
  --gradient-start: #000000;
  --gradient-end: #737373;
  --card-bg: rgba(255, 255, 255, 0.55);
  --card-border: rgba(255, 255, 255, 0.8);
  --primary-color: #1f2937;
  --primary-hover: #374151;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 20px -5px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 30px -5px rgba(0, 0, 0, 0.12);
  --border-radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Levitating Background Logo */
.bg-floating-logo {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.12;
  z-index: -2;
  pointer-events: none;
  width: 60vw;
  max-width: 800px;
  animation: levitate 8s ease-in-out infinite;
}

@keyframes levitate {
  0%, 100% { transform: translate(-50%, -50%); }
  50% { transform: translate(-50%, calc(-50% - 20px)); }
}

/* Gradient Text Utility */
.gradient-text {
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  display: inline-block;
  padding-bottom: 0.15em; /* Prevents descenders like 'g' from being clipped */
  margin-bottom: -0.15em; /* Counters the extra padding for layout */
}

/* Glass Panel Utility */
.glass-panel {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius);
  transition: var(--transition);
}
.glass-panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 40px -10px rgba(0,0,0,0.15);
  border-color: rgba(255,255,255,1);
}

/* ─── Typography ──────────────────────────────────────── */
h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.2;
}

p {
  line-height: 1.6;
}

/* ─── Animated SVG Waves ────────────────────────────── */
#svg-background {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40vh;
  z-index: -1;
  pointer-events: none;
  opacity: 0.8;
}

/* ─── Particles (Triangles) ─────────────────────────── */
.bg-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  /* Triangle */
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
  background: linear-gradient(135deg, rgba(0,0,0,0.15), rgba(115,115,115,0.2));
  animation: floatUp linear infinite;
  opacity: 0;
}

@keyframes floatUp {
  0% { transform: translateY(100px) rotate(0deg) scale(0.8); opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 1; }
  100% { transform: translateY(-800px) rotate(360deg) scale(1.2); opacity: 0; }
}

/* ─── Navbar ──────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  background: rgba(217, 217, 217, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.4);
}

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.1rem;
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  color: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-mark svg { width: 18px; height: 18px; }

.hamburger {
  display: none;
  cursor: pointer;
  color: var(--text-main);
}
.hamburger svg {
  width: 28px;
  height: 28px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links {
  display: flex;
  gap: 2rem;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--text-main);
}

/* ─── Layout ──────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}
section {
  padding: 6rem 0 3rem;
  position: relative;
  z-index: 1;
}

.section-label {
  display: inline-block;
  background: rgba(0,0,0,0.06);
  color: var(--gradient-end);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4em 1em;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  margin-bottom: 1rem;
}

.section-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 650px;
  margin-bottom: 3rem;
}

/* ─── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85em 2.2em;
  font-weight: 700;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--text-main);
  color: var(--text-main);
}
.btn-outline:hover {
  background: rgba(0,0,0,0.05);
  transform: translateY(-2px);
}

/* ─── Hero ────────────────────────────────────────────── */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-top: 100px;
}
.hero-badge {
  background: rgba(16, 185, 129, 0.05);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--success);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  margin-bottom: 1.5rem;
  letter-spacing: -0.04em;
  line-height: 1.1;
}
.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 2.5rem auto;
}

/* ─── Stats Bar ───────────────────────────────────── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  padding: 3rem;
  margin-top: -3rem;
  margin-bottom: 5rem;
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 2.8rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
}

/* ─── Cards Grid (Services/Portfolio) ──────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.service-card {
  padding: 2.5rem 2rem;
}

.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ─── Tech Stack ──────────────────────────────────── */
.tech-category {
  margin-bottom: 2rem;
}
.tech-category h4 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--text-main);
}
.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.tech-pill {
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(0,0,0,0.1);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
}
.tech-pill:hover {
  background: white;
  border-color: rgba(0,0,0,0.3);
  transform: translateY(-2px);
}

/* ─── Process ───────────────────────────────────── */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 800px;
}
.process-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
  position: relative;
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 29px;
  top: 60px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gradient-end) 0%, transparent 100%);
  opacity: 0.3;
}
.step-num {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: white;
  border: 2px solid rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 900;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  color: var(--gradient-end);
}
.step-body h4 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  padding-top: 0.8rem;
}
.step-body p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* ─── Testimonials ──────────────────────────────── */
.testimonial-card {
  padding: 2.5rem;
  position: relative;
}
.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: -10px;
  left: 1.5rem;
  font-size: 8rem;
  color: var(--gradient-end);
  opacity: 0.1;
  font-family: Georgia, serif;
  line-height: 1;
}
.t-text {
  font-style: italic;
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.t-author {
  font-weight: 800;
  font-size: 1.05rem;
}
.t-role {
  color: var(--gradient-end);
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

/* ─── Footer / Contact ──────────────────────────────────────────── */
.app-footer {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  font-size: 1rem;
  border-top: 1px solid rgba(0,0,0,0.05);
}
.app-footer a:not(.btn) {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
}

/* ─── Media Queries ────────────────────────────────────────── */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }
  .nav-menu {
    flex-direction: column;
    position: absolute;
    top: 65px;
    left: 0;
    width: 100%;
    background: rgba(235, 235, 235, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
    border-bottom: 1px solid rgba(0,0,0,0.05);
  }
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links {
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    width: 100%;
  }
  .nav-menu .btn {
    width: 100%;
    text-align: center;
  }
  .hero {
    min-height: 80vh;
    padding-top: 80px;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero p {
    font-size: 1.05rem;
  }
  .stats-bar {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2rem;
  }
  .process-step {
    grid-template-columns: 50px 1fr;
    gap: 1.5rem;
  }
  .process-step:not(:last-child)::after {
    left: 24px;
    top: 50px;
  }
  .step-num {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }
  .container {
    padding: 0 1.5rem;
  }
}