/* ============================================================
   DNR TECHNOLOGY — STYLESHEET
   Obsidian gold theme
   Stack: pure HTML / CSS / JS, no frameworks
============================================================ */

/* ------------------------------------------------------------
   CUSTOM PROPERTIES
------------------------------------------------------------ */
:root {
  /* Colours */
  --clr-black:       #0a0a0a;
  --clr-black-mid:   #111111;
  --clr-black-soft:  #1a1a1a;
  --clr-gold:        #E8C547;
  --clr-gold-dim:    rgba(232, 197, 71, 0.15);
  --clr-gold-border: rgba(232, 197, 71, 0.25);
  --clr-white:       #ffffff;
  --clr-white-60:    rgba(255, 255, 255, 0.6);
  --clr-white-40:    rgba(255, 255, 255, 0.4);
  --clr-white-20:    rgba(255, 255, 255, 0.2);
  --clr-white-08:    rgba(255, 255, 255, 0.08);
  --clr-white-05:    rgba(255, 255, 255, 0.05);

  /* Typography */
  --font-display: 'Bebas Neue', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.5rem;
  --space-lg:   2.5rem;
  --space-xl:   4rem;
  --space-2xl:  6rem;

  /* Nav */
  --nav-height: 60px;

  /* Transitions */
  --transition: 0.2s ease-in-out;
}


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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--clr-black);
  color: var(--clr-white);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
}


/* ------------------------------------------------------------
   TYPOGRAPHY UTILITIES
------------------------------------------------------------ */
.section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.688rem;   /* 11px */
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 0.5rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: 0.02em;
  line-height: 1.1;
  color: var(--clr-white);
}


/* ------------------------------------------------------------
   BUTTONS
------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.75rem 1.5rem;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn--primary {
  background: var(--clr-gold);
  color: var(--clr-black);
  border: 1px solid var(--clr-gold);
}

.btn--primary:hover {
  background: #f2d263;
  border-color: #f2d263;
}

.btn--ghost {
  background: transparent;
  color: var(--clr-white-60);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn--ghost:hover {
  color: var(--clr-white);
  border-color: rgba(255, 255, 255, 0.4);
}


/* ------------------------------------------------------------
   NAV
------------------------------------------------------------ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--clr-black);
  border-bottom: 1px solid var(--clr-white-05);
  transition: border-color var(--transition);
}

/* Scrolled state — slightly more visible border */
.site-nav.is-scrolled {
  border-bottom-color: var(--clr-white-08);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  padding: 0 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

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

.nav-logo-text {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--clr-white);
}

.nav-logo-sub {
  color: var(--clr-white-40);
  font-weight: 400;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.688rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-white-40);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--clr-white);
}

/* Nav CTA */
.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.688rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 1.125rem;
  border: 1px solid var(--clr-gold);
  color: var(--clr-gold);
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}

.nav-cta:hover {
  background: var(--clr-gold);
  color: var(--clr-black);
}

/* Mobile toggle */
.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--clr-white);
  transition: transform var(--transition), opacity var(--transition);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--clr-black-mid);
  border-top: 1px solid var(--clr-white-08);
  padding: var(--space-md) 2.5rem;
  gap: var(--space-sm);
}

.mobile-menu a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-white-40);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--clr-white-05);
  transition: color var(--transition);
}

.mobile-menu a:hover {
  color: var(--clr-white);
}

.mobile-menu .mobile-cta {
  color: var(--clr-gold);
  border-bottom: none;
  margin-top: 0.5rem;
}


/* ------------------------------------------------------------
   HERO
------------------------------------------------------------ */
.hero {
  position: relative;
  background: var(--clr-black);
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: 0;
  overflow: hidden;
}

/* Hex texture */
.hero-texture {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  pointer-events: none;
}

/* Corner brackets */
.hero-corner {
  position: absolute;
  width: 24px;
  height: 24px;
  pointer-events: none;
}

.hero-corner--tl {
  top: calc(var(--nav-height) + 20px);
  left: 20px;
  border-top: 1px solid var(--clr-gold);
  border-left: 1px solid var(--clr-gold);
  opacity: 0.5;
}

.hero-corner--tr {
  top: calc(var(--nav-height) + 20px);
  right: 20px;
  border-top: 1px solid var(--clr-gold);
  border-right: 1px solid var(--clr-gold);
  opacity: 0.5;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2.5rem var(--space-xl);
}

/* Eyebrow */
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.eyebrow-line {
  display: block;
  width: 28px;
  height: 1px;
  background: var(--clr-gold);
}

.eyebrow-text {
  font-family: var(--font-mono);
  font-size: 0.688rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-gold);
}

/* Heading */
.hero-heading {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 7.5rem);
  line-height: 0.95;
  letter-spacing: 0.01em;
  margin-bottom: 1.75rem;
  max-width: 700px;
}

.hero-heading-accent {
  color: var(--clr-gold);
}

.hero-heading-dim {
  color: var(--clr-white-40);
}

/* Body copy */
.hero-body {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--clr-white-40);
  max-width: 440px;
  margin-bottom: 2rem;
}

/* CTA row */
.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

/* Metrics */
.hero-metrics {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--clr-white-08);
  padding-top: 2rem;
}

.metric {
  flex: 1;
  padding-right: 2rem;
  margin-right: 2rem;
  border-right: 1px solid var(--clr-white-08);
}

.metric:last-child {
  border-right: none;
  padding-right: 0;
  margin-right: 0;
}

.metric-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--clr-gold);
  line-height: 1;
  margin-bottom: 0.375rem;
}

.metric-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.688rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-white-20);
}


/* ------------------------------------------------------------
   ABOUT
------------------------------------------------------------ */
.about {
  background: var(--clr-black-mid);
  border-top: 1px solid var(--clr-white-05);
}

.about-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-2xl) 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

/* Service list */
.service-list {
  margin-top: 1.75rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.service-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  background: var(--clr-gold-dim);
  border: 1px solid var(--clr-gold-border);
  padding: 0.625rem 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--clr-white-60);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Body copy */
.about-right {
  padding-top: 3.25rem; /* aligns with heading baseline roughly */
}

.about-right p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--clr-white-40);
  margin-bottom: 1.25rem;
}

.about-right p:last-child {
  margin-bottom: 0;
}


/* ------------------------------------------------------------
   CLIENTS
------------------------------------------------------------ */
.clients {
  background: var(--clr-black);
  border-top: 1px solid var(--clr-white-05);
}

.clients-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-2xl) 2.5rem;
}

.clients-header {
  margin-bottom: var(--space-lg);
}

/* Grid */
.client-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--clr-white-05);
}

.client-card {
  background: var(--clr-black-mid);
  padding: 2rem;
  transition: background var(--transition);
}

.client-card:hover {
  background: var(--clr-black-soft);
}

.client-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.client-logo-box {
  width: 52px;
  height: 52px;
  background: var(--clr-gold-dim);
  border: 1px solid var(--clr-gold-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.client-index {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--clr-white-08);
  line-height: 1;
  letter-spacing: 0.02em;
}

.client-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  color: var(--clr-white);
  margin-bottom: 0.625rem;
}

.client-desc {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--clr-white-40);
  margin-bottom: 1.25rem;
}

.client-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.688rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-gold);
}

.client-tag::before {
  content: '';
  display: block;
  width: 18px;
  height: 1px;
  background: var(--clr-gold);
}


/* ------------------------------------------------------------
   CONTACT
------------------------------------------------------------ */
.contact {
  background: var(--clr-black-mid);
  border-top: 1px solid var(--clr-white-05);
}

.contact-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-2xl) 2.5rem;
}

.contact-header {
  margin-bottom: var(--space-lg);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--clr-white-05);
}

.contact-item {
  background: var(--clr-black);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-icon {
  width: 36px;
  height: 36px;
  background: var(--clr-gold-dim);
  border: 1px solid var(--clr-gold-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.375rem;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-white-20);
}

.contact-value {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--clr-white-60);
  transition: color var(--transition);
}

a.contact-value:hover {
  color: var(--clr-gold);
}


/* ------------------------------------------------------------
   FOOTER
------------------------------------------------------------ */
.site-footer {
  background: var(--clr-black);
  border-top: 1px solid var(--clr-white-05);
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.688rem;
  letter-spacing: 0.06em;
  color: var(--clr-white-20);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.688rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-white-20);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--clr-white-40);
}


/* ------------------------------------------------------------
   RESPONSIVE
------------------------------------------------------------ */
@media (max-width: 900px) {
  .about-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .about-right {
    padding-top: 0;
  }

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

@media (max-width: 700px) {
  :root {
    --nav-height: 56px;
  }

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

  .nav-mobile-toggle {
    display: flex;
  }

  .mobile-menu.is-open {
    display: flex;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-metrics {
    flex-direction: column;
    gap: 1.5rem;
    border-top: none;
    padding-top: 0;
  }

  .metric {
    border-right: none;
    border-bottom: 1px solid var(--clr-white-08);
    padding-right: 0;
    margin-right: 0;
    padding-bottom: 1.5rem;
  }

  .metric:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

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

  .service-list {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .nav-inner,
  .hero-inner,
  .about-inner,
  .clients-inner,
  .contact-inner,
  .footer-inner {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

@media (max-width: 480px) {
  .hero-heading {
    font-size: 3rem;
  }
}


/* ------------------------------------------------------------
   SCROLL REVEAL — elements fade + slide up on enter
   (class toggled by JS)
------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease-out, transform 0.55s ease-out;
}

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


/* ============================================================
   LEGAL PAGE (privacy policy, terms, etc.)
============================================================ */
.legal {
  background: var(--clr-black);
  color: var(--clr-white);
  padding: 8rem 1.5rem 5rem;
}

.legal-inner {
  max-width: 760px;
  margin: 0 auto;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--clr-white-60);
}

.legal-inner .section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 1rem;
}

.legal-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--clr-white);
  margin: 0 0 2.5rem;
}

.legal-inner h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.75rem;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--clr-white);
  margin: 3rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--clr-gold-border);
}

.legal-inner p {
  margin: 0 0 1.25rem;
}

.legal-inner ul {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  list-style: none;
}

.legal-inner ul li {
  position: relative;
  margin: 0 0 0.75rem;
  padding-left: 1rem;
}

.legal-inner ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 0.4rem;
  height: 1px;
  background: var(--clr-gold);
}

.legal-inner ul ul {
  margin-top: 0.5rem;
}

.legal-inner strong {
  color: var(--clr-white);
  font-weight: 500;
}

.legal-inner a {
  color: var(--clr-gold);
  text-decoration: none;
  border-bottom: 1px solid var(--clr-gold-border);
  transition: border-color 0.2s ease;
}

.legal-inner a:hover {
  border-bottom-color: var(--clr-gold);
}