/* =============================================
   DYNA SOFT — Landing Page Styles
   ============================================= */

:root {
  --color-bg: #000000;
  --color-bg-alt: #0d0d0d;
  --color-bg-card: #111111;
  --color-bg-card-hover: #161616;
  --color-accent: #42C0FB;
  --color-accent-dark: #2a9fd4;
  --color-accent-glow: rgba(66, 192, 251, 0.15);
  --color-text: #ffffff;
  --color-text-muted: #9ca3af;
  --color-border: rgba(66, 192, 251, 0.2);
  --color-border-subtle: rgba(255, 255, 255, 0.08);

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --header-height: 72px;
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

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

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-accent {
  color: var(--color-accent);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--color-accent);
  color: #000;
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-accent-glow);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent-glow);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 0.65rem 1.25rem;
  font-size: 0.875rem;
}

.btn--full {
  width: 100%;
}

/* ---- Header / Nav ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: rgba(0, 0, 0, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo img {
  height: 40px;
  width: auto;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

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

.nav__link--cta {
  background: var(--color-accent);
  color: #000 !important;
  font-weight: 600;
  margin-left: 0.5rem;
}

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

.nav__link--login {
  border: 1px solid var(--color-border);
  color: var(--color-text) !important;
}

.nav__link--login:hover {
  background: var(--color-accent-glow);
  border-color: var(--color-accent);
  color: var(--color-accent) !important;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

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

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 3rem) 0 4rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__graph {
  position: absolute;
  bottom: 15%;
  right: -5%;
  width: 60%;
  max-width: 700px;
  color: var(--color-accent);
  opacity: 0.12;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  margin-bottom: 1.5rem;
}

.hero__title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero__login-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 1.25rem;
  margin-bottom: 3.5rem;
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.hero__login-btn svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

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

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border-subtle);
}

.stat__number {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
}

.stat__label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---- Sections ---- */
.section {
  padding: 6rem 0;
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section__tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section__title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

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

/* ---- About ---- */
.about {
  background: var(--color-bg-alt);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about__text p {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.about__features {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.about__features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
}

.about__features svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.about__visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about__card {
  padding: 2rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), transform var(--transition);
}

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

.about__card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-glow);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.about__card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}

.about__card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

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

/* ---- Solutions ---- */
.solution-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
  padding: 2.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}

.solution-card:hover {
  border-color: var(--color-border);
}

.solution-card--reverse {
  direction: rtl;
}

.solution-card--reverse > * {
  direction: ltr;
}

.solution-card__image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border-subtle);
  background: #0a0a0a;
}

.solution-card__image img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.solution-card__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  margin-bottom: 0.75rem;
}

.solution-card__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.solution-card__desc {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.solution-card__features {
  margin-bottom: 1.5rem;
}

.solution-card__features li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.925rem;
  margin-bottom: 0.5rem;
}

.solution-card__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* Gallery */
.gallery {
  margin-top: 2rem;
}

.gallery__title {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--color-text-muted);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.gallery__item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border-subtle);
  background: var(--color-bg-card);
  transition: border-color var(--transition), transform var(--transition);
}

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

.gallery__item img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.gallery__item figcaption {
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  text-align: center;
  color: var(--color-text-muted);
}

/* ---- Clients ---- */
.clients {
  background: var(--color-bg-alt);
}

.clients__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 1.25rem;
  min-height: 150px;
  background: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.client-logo img {
  max-height: 105px;
  max-width: 100%;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition);
}

.client-logo:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(66, 192, 251, 0.15);
}

.client-logo:hover img {
  transform: scale(1.04);
}

/* ---- Contact ---- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contact__grid--info-only {
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
}

.contact__grid--info-only .contact__info .section__tag,
.contact__grid--info-only .contact__info .section__title,
.contact__grid--info-only .contact__info .section__desc {
  text-align: center;
}

.contact__grid--info-only .contact__details {
  align-items: center;
}

.contact__grid--info-only .contact__details li {
  justify-content: center;
}

.contact__info .section__tag,
.contact__info .section__title,
.contact__info .section__desc {
  text-align: left;
}

.contact__info .section__desc {
  margin-bottom: 2rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact__details li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact__details svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__details strong {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 0.15rem;
}

.contact__details span,
.contact__details a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  transition: color var(--transition);
}

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

.contact__whatsapp {
  margin-top: 2rem;
  text-align: center;
}

.contact__whatsapp strong {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.contact__whatsapp-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.875rem 1.25rem;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.25);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.whatsapp-btn svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.whatsapp-btn:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  background: linear-gradient(135deg, #2ee06f 0%, #159e8c 100%);
}

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

.contact__form {
  padding: 2.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(156, 163, 175, 0.5);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form__success {
  margin-top: 1rem;
  padding: 0.875rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  border-radius: var(--radius);
}

/* ---- Footer ---- */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-border-subtle);
  background: var(--color-bg-alt);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer__logo img {
  height: 36px;
  width: auto;
  opacity: 0.9;
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

/* ---- Animations ---- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .about__grid,
  .solution-card,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .solution-card--reverse {
    direction: ltr;
  }

  .clients__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.98);
    padding: 1.5rem;
    gap: 0.25rem;
    border-bottom: 1px solid var(--color-border-subtle);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }

  .nav__menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    width: 100%;
    padding: 0.875rem 1rem;
    text-align: center;
  }

  .nav__link--cta {
    margin-left: 0;
    margin-top: 0.5rem;
  }

  .hero__stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .hero__graph {
    width: 100%;
    right: 0;
    opacity: 0.08;
  }

  .section {
    padding: 4rem 0;
  }

  .solution-card {
    padding: 1.5rem;
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact__form {
    padding: 1.5rem;
  }

  .contact__whatsapp-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .whatsapp-btn {
    justify-content: center;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

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