/* =========================================================
   MD Sound — Corporate one-pager
   Colors: bg #0B0D12 · surface #121826 · text #F4F6FA
           accent #00D4FF · magenta #FF2D95 · gold #D4AF37
   ========================================================= */

:root {
  --bg: #0B0D12;
  --surface: #121826;
  --surface-2: #1A2233;
  --text: #F4F6FA;
  --muted: #9AA3B5;
  --accent: #00D4FF;
  --accent-dim: rgba(0, 212, 255, 0.14);
  --magenta: #FF2D95;
  --magenta-dim: rgba(255, 45, 149, 0.12);
  --gold: #D4AF37;
  --gold-dim: rgba(212, 175, 55, 0.15);
  --border: rgba(244, 246, 250, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --max: 1120px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

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

ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0; }

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(11, 13, 18, 0.78);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.logo-mark { flex-shrink: 0; }

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.logo-name {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  line-height: 1.1;
}

.logo-tag {
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.35rem;
}

.nav a:not(.btn) {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav a:not(.btn):hover,
.nav a:not(.btn):focus-visible {
  color: var(--text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
}

.btn-accent {
  background: linear-gradient(135deg, #00D4FF 0%, #00B8E0 100%);
  color: #041018;
  box-shadow: 0 8px 28px rgba(0, 212, 255, 0.28);
}

.btn-accent:hover {
  box-shadow: 0 12px 36px rgba(0, 212, 255, 0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: rgba(0, 212, 255, 0.45);
  background: var(--accent-dim);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  padding: clamp(3.5rem, 10vw, 7rem) 0 clamp(4rem, 9vw, 6.5rem);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.led-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}

.hero-glow--cyan {
  width: min(520px, 70vw);
  height: min(520px, 70vw);
  top: -10%;
  left: 15%;
  background: rgba(0, 212, 255, 0.18);
}

.hero-glow--magenta {
  width: min(420px, 55vw);
  height: min(420px, 55vw);
  bottom: -5%;
  right: 5%;
  background: rgba(255, 45, 149, 0.12);
}

.hero-content { max-width: 720px; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero-brand {
  display: block;
  font-size: clamp(2.6rem, 8vw, 4.6rem);
  letter-spacing: 0.04em;
  background: linear-gradient(180deg, #FFFFFF 0%, #C8D0E0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-tagline {
  display: block;
  margin-top: 0.55rem;
  font-size: clamp(1.15rem, 3vw, 1.55rem);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
}

.hero-lead {
  margin-top: 1.5rem;
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  color: var(--muted);
  max-width: 36em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2.25rem;
}

.hero-pills li {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
}

/* ---------- Sections ---------- */
.section {
  padding: clamp(3.5rem, 8vw, 5.5rem) 0;
}

.section--alt {
  background: linear-gradient(180deg, transparent 0%, rgba(18, 24, 38, 0.65) 20%, rgba(18, 24, 38, 0.65) 80%, transparent 100%);
}

.section-head {
  max-width: 560px;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.section-head h2 {
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  margin-bottom: 0.75rem;
}

.section-lead {
  color: var(--muted);
  font-size: 1.05rem;
}

/* ---------- Service cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.15rem;
}

.card {
  position: relative;
  padding: 1.5rem 1.35rem 1.6rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent 70%);
  opacity: 0.7;
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.35);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.15rem;
  color: var(--accent);
}

.card-icon--stage { color: #7DD8FF; }
.card-icon--light { color: #FF8BC8; }
.card-icon--sound { color: var(--accent); }

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.55rem;
}

.card p {
  font-size: 0.92rem;
  color: var(--muted);
}

/* ---------- Reasons ---------- */
.reasons {
  display: grid;
  gap: 1rem;
}

.reason {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: start;
  padding: 1.5rem 1.5rem 1.55rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s ease;
}

.reason:hover {
  border-color: rgba(255, 45, 149, 0.3);
}

.reason-num {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--magenta);
  letter-spacing: 0.04em;
  line-height: 1;
  padding-top: 0.15rem;
}

.reason h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.reason p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- Chips / references ---------- */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.chip {
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.chip:hover {
  border-color: rgba(0, 212, 255, 0.4);
  background: var(--surface-2);
}

.chip--gold {
  border-color: rgba(212, 175, 55, 0.45);
  background: var(--gold-dim);
  color: #F0E0A8;
}

/* ---------- Contact ---------- */
.section--contact {
  position: relative;
}

.section--contact::before {
  content: "";
  position: absolute;
  inset: 10% 0 auto;
  height: 60%;
  background: radial-gradient(ellipse at 70% 40%, rgba(0, 212, 255, 0.08), transparent 55%);
  pointer-events: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

.contact-area {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.pin {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim);
}

.contact-cards {
  display: grid;
  gap: 0.75rem;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1.1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.contact-card:hover {
  border-color: rgba(0, 212, 255, 0.4);
  transform: translateX(3px);
}

.contact-card--accent {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.16), rgba(0, 212, 255, 0.04));
  border-color: rgba(0, 212, 255, 0.35);
}

.contact-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-value {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 600;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0 6rem; /* room for sticky WA on mobile */
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.footer-tag {
  font-size: 0.75rem;
  color: var(--muted);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---------- Sticky WhatsApp ---------- */
.wa-sticky {
  position: fixed;
  right: 1.15rem;
  bottom: 1.15rem;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.8rem 1.15rem 0.8rem 0.9rem;
  border-radius: 999px;
  background: #25D366;
  color: #041810;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 10px 32px rgba(37, 211, 102, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.wa-sticky:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 14px 40px rgba(37, 211, 102, 0.5);
}

.wa-sticky svg { flex-shrink: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 1rem 1.25rem;
    background: rgba(11, 13, 18, 0.96);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav a:not(.btn) {
    padding: 0.85rem 0.5rem;
    border-bottom: 1px solid var(--border);
  }

  .nav .nav-cta {
    margin-top: 0.75rem;
    width: 100%;
  }

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

  .reason {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .logo-tag { display: none; }

  .wa-sticky span { display: none; }
  .wa-sticky {
    padding: 0.9rem;
    border-radius: 50%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

.footer-social{display:inline-flex;align-items:center;gap:8px;color:inherit;text-decoration:none;opacity:.85;transition:opacity .2s}
.footer-social:hover{opacity:1}