/* ============================================
   codiva® — Design System
   Inspired by landonorris.com aesthetic
   Dark theme, lime accent, smooth motion
   ============================================ */

/* --- CUSTOM PROPERTIES --- */
:root {
  --color-bg: #0a0a0a;
  --color-bg-elevated: #111111;
  --color-bg-card: #161616;
  --color-surface: #1a1a1a;
  --color-border: #222222;
  --color-text: #f0f0f0;
  --color-text-muted: #888888;
  --color-text-dim: #555555;
  --color-accent: #BEFF00;
  --color-accent-hover: #d4ff55;
  --color-accent-dim: rgba(190, 255, 0, 0.08);
  --color-white: #ffffff;
  --color-black: #000000;

  --font-display: 'IBM Plex Sans', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.65, 0.05, 0, 1);

  --duration-fast: 0.3s;
  --duration-med: 0.6s;
  --duration-slow: 1s;
  --duration-marquee: 25s;

  --container-max: 1400px;
  --container-pad: clamp(1.5rem, 4vw, 4rem);
  --section-pad: clamp(5rem, 12vh, 10rem);
}

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

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

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

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

em {
  font-style: italic;
  color: var(--color-accent);
}

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

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

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

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --- UTILITIES --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 3rem;
}

.reg {
  font-size: 0.4em;
  vertical-align: super;
  color: var(--color-accent);
}

/* --- NAV --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem var(--container-pad);
  transition: background var(--duration-fast) ease, padding var(--duration-fast) ease;
}

.nav--scrolled {
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding-top: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.nav__logo a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  transition: color var(--duration-fast) ease;
}

.nav__logo a:hover {
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  gap: 2.5rem;
}

.nav__link {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  position: relative;
  transition: color var(--duration-fast) ease;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-med) var(--ease-out-expo);
}

.nav__link:hover {
  color: var(--color-accent);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__lang {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  border: 1px solid var(--color-border);
  padding: 0.3rem 0.6rem;
  transition: all var(--duration-fast) ease;
}

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

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  padding: 4px 0;
}

.nav__burger span {
  display: block;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--duration-fast) var(--ease-out-expo), opacity var(--duration-fast) ease;
}

.nav__burger.active span:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.nav__burger.active span:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* --- HERO --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(190, 255, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(190, 255, 0, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 var(--container-pad);
}

.hero__eyebrow {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out-expo) 0.5s forwards;
}

.hero__logo-wrap {
  margin-bottom: 2rem;
  opacity: 0;
  transform: scale(0.9);
  animation: logoReveal 1.2s var(--ease-out-expo) 0.2s forwards;
}

.hero__logo {
  width: clamp(200px, 30vw, 340px);
  height: auto;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 0 60px rgba(190, 255, 0, 0.08));
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 8rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.05em;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(40px);
  animation: fadeUp 1s var(--ease-out-expo) 0.6s forwards;
}

.hero__title-line {
  display: inline-block;
  color: var(--color-accent);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 300;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out-expo) 0.8s forwards;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out-expo) 1s forwards;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out-expo) 1.2s forwards;
}

.hero__scroll-indicator span {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-dim);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2.2rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 0;
  transition: all var(--duration-fast) var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-black);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(190, 255, 0, 0.2);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

/* --- MARQUEE --- */
.marquee {
  padding: 1.5rem 0;
  overflow: hidden;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.marquee__track {
  display: flex;
  align-items: center;
  gap: 2rem;
  width: max-content;
  animation: marqueeScroll var(--duration-marquee) linear infinite;
}

.marquee__track--reverse {
  animation-name: marqueeScrollReverse;
}

.marquee__track span {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  white-space: nowrap;
}

.marquee__dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

/* --- ABOUT --- */
.about {
  padding: var(--section-pad) 0;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about__heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.about__text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.about__stats {
  display: flex;
  gap: 3rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.stat__number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat__label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
}

/* --- SERVICES --- */
.services {
  padding: var(--section-pad) 0;
  background: var(--color-bg-elevated);
}

.services__heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 4rem;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}

.service-card {
  padding: 3rem;
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
  transition: background var(--duration-med) var(--ease-out-expo);
  margin-top: -1px;
  margin-left: -1px;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-accent-dim), transparent);
  opacity: 0;
  transition: opacity var(--duration-med) var(--ease-out-expo);
}

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

.service-card:hover {
  background: var(--color-bg-card);
}

.service-card__number {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
  position: relative;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  position: relative;
  transition: color var(--duration-fast) ease;
}

.service-card:hover .service-card__title {
  color: var(--color-accent);
}

.service-card__desc {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  position: relative;
}

.service-card__line {
  position: absolute;
  bottom: 0;
  left: 3rem;
  right: 3rem;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-med) var(--ease-out-expo);
}

.service-card:hover .service-card__line {
  transform: scaleX(1);
}

/* --- TRADEMARK --- */
.trademark {
  padding: var(--section-pad) 0;
}

.trademark__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.trademark__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.trademark__logo {
  width: clamp(240px, 30vw, 380px);
  height: auto;
  display: block;
  filter: drop-shadow(0 0 40px rgba(190, 255, 0, 0.06));
}

.trademark__heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 2.5rem;
}

.trademark__details {
  display: flex;
  flex-direction: column;
}

.trademark__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
  gap: 2rem;
}

.trademark__key {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.trademark__val {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: right;
}

/* --- FAQ --- */
.faq {
  padding: var(--section-pad) 0;
}

.faq__heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 3rem;
}

.faq__grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq__question {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-weight: 600;
  padding: 1.5rem 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--duration-fast) ease;
  list-style: none;
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform var(--duration-fast) var(--ease-out-expo);
  flex-shrink: 0;
  margin-left: 2rem;
}

.faq__item[open] .faq__question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq__item[open] .faq__question {
  color: var(--color-accent);
}

.faq__answer {
  padding: 0 0 1.5rem;
  max-width: 700px;
}

.faq__answer p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text-muted);
}

.faq__answer a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* --- CONTACT --- */
.contact {
  padding: var(--section-pad) 0;
  background: var(--color-bg-elevated);
}

.contact__inner {
  max-width: 700px;
}

.contact__heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 2rem;
}

.contact__text {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
}

.contact__email {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-accent);
  position: relative;
  transition: opacity var(--duration-fast) ease;
}

.contact__email::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-med) var(--ease-out-expo);
}

.contact__email:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.contact__location {
  margin-top: 2rem;
  font-size: 0.85rem;
  font-style: normal;
  color: var(--color-text-dim);
  letter-spacing: 0.05em;
}

.trademark__list {
  display: flex;
  flex-direction: column;
}

/* --- FOOTER --- */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-border);
}

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

.footer__brand {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.footer__copy {
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

.footer__meta {
  display: flex;
  gap: 2rem;
  font-size: 0.7rem;
  color: var(--color-text-dim);
  letter-spacing: 0.03em;
}

/* --- ANIMATIONS --- */
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes logoReveal {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

@keyframes marqueeScroll {
  to { transform: translateX(-50%); }
}

@keyframes marqueeScrollReverse {
  to { transform: translateX(50%); }
}


/* --- SCROLL REVEAL --- */
[data-animate="reveal"],
[data-animate="fade"],
[data-animate="card"] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}

[data-animate="card"] {
  transform: translateY(30px);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- RESPONSIVE --- */
@media (max-width: 992px) {
  .about__grid,
  .trademark__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .trademark__visual {
    order: -1;
  }
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform var(--duration-med) var(--ease-out-expo);
  }

  .nav__links.open {
    transform: translateX(0);
  }

  .nav__links .nav__link {
    font-size: 1.5rem;
    color: var(--color-text);
  }

  .nav__burger {
    display: flex;
    z-index: 101;
  }

  .hero__logo {
    width: clamp(160px, 50vw, 260px);
  }

  .hero__title {
    font-size: clamp(2.5rem, 12vw, 5rem);
  }

  .about__stats {
    gap: 2rem;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .footer__brand {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .footer__meta {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .service-card {
    padding: 2rem;
  }

  .service-card__line {
    left: 2rem;
    right: 2rem;
  }

  .trademark__row {
    flex-direction: column;
    gap: 0.3rem;
  }

  .trademark__val {
    text-align: left;
  }
}