/* Public landing page — aligned with the personal cabinet and reference layout. */
:root{
  --landing-bg: #242424;
  --landing-bg-deep: #202020;
  --landing-surface: #2a2a2a;
  --landing-surface-soft: #303030;
  --landing-text: #f1f0ed;
  --landing-muted: #b9b6b1;
  --landing-accent: #a58f6b;
  --landing-accent-hover: #bda47b;
  --landing-light: #f4f1ec;
  --landing-light-text: #242424;
  --landing-light-muted: #66615b;
  --landing-line: rgba(255, 255, 255, .13);
  --landing-line-soft: rgba(255, 255, 255, .085);
  --landing-shadow: 0 22px 55px rgba(0, 0, 0, .18);
}

body{
  background: var(--landing-bg);
  color: var(--landing-text);
}

header{
  background: rgba(36, 36, 36, .96);
  border-bottom: 1px solid var(--landing-line);
}

.landing-nav{
  position: relative;
  width: min(1480px, calc(100% - 3.25rem));
  min-height: 66px;
  margin: 0 auto;
  padding: .85rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  flex-wrap: nowrap;
}

.landing-nav-side{
  display: flex;
  align-items: center;
  gap: 1.35rem;
  min-width: 0;
}

.landing-nav a{
  color: var(--landing-muted);
  font-size: .78rem;
  letter-spacing: .01em;
  text-decoration: none;
  white-space: nowrap;
}

.landing-nav a:hover{
  color: var(--landing-text);
  text-decoration: none;
}

.landing-brand{
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: var(--landing-text) !important;
  font-size: 1.02rem !important;
  letter-spacing: .04em !important;
}

.landing-nav-cta{
  padding: .48rem .82rem;
  border: 1px solid rgba(165, 143, 107, .58);
  border-radius: 999px;
  color: var(--landing-accent-hover) !important;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}

.landing-nav-cta:hover{
  border-color: var(--landing-accent-hover);
  background: rgba(165, 143, 107, .12);
}

.landing-user-menu{
  position: relative;
}

.landing-user-menu-summary{
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--landing-muted);
  cursor: pointer;
  list-style: none;
}

.landing-user-menu-summary::-webkit-details-marker{
  display: none;
}

.landing-avatar{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(165, 143, 107, .55);
  border-radius: 50%;
  background: rgba(165, 143, 107, .14);
  color: var(--landing-accent-hover);
  font-size: .8rem;
  font-weight: 750;
}

.landing-user-email{
  max-width: 180px;
  overflow: hidden;
  color: var(--landing-text);
  font-size: .78rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.landing-user-chevron{
  color: var(--landing-accent-hover);
  line-height: 1;
  transform: translateY(-2px);
}

.landing-user-dropdown{
  position: absolute;
  top: calc(100% + .82rem);
  right: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  min-width: 210px;
  overflow: hidden;
  border: 1px solid var(--landing-line);
  border-radius: 13px;
  background: #2d2d2d;
  box-shadow: 0 18px 36px rgba(0, 0, 0, .28);
}

.landing-user-dropdown a{
  padding: .72rem .86rem;
  color: var(--landing-text);
  font-size: .79rem;
}

.landing-user-dropdown a:hover{
  background: rgba(165, 143, 107, .12);
}

.landing-user-logout{
  border-top: 1px solid var(--landing-line-soft);
  color: var(--landing-muted) !important;
}

.landing-container{
  width: min(1320px, calc(100% - 3.25rem));
  margin: 0 auto;
}

.landing-page section,
.landing-page section:last-child{
  padding: 0;
  border-bottom: 1px solid var(--landing-line-soft);
}

.landing-eyebrow{
  margin: 0 0 .85rem;
  color: var(--landing-accent-hover);
  font-size: .66rem;
  font-weight: 750;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.landing-page h1,
.landing-page h2,
.landing-page h3{
  color: var(--landing-text);
}

.landing-page p{
  color: var(--landing-muted);
}

.landing-hero{
  padding: 5.7rem 0 4rem !important;
  background:
    radial-gradient(840px 360px at 50% -40px, rgba(165, 143, 107, .12), transparent 72%),
    var(--landing-bg);
  text-align: center;
}

.landing-hero-content{
  max-width: 880px;
}

.landing-hero h1{
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 4.45rem);
  font-weight: 620;
  letter-spacing: -.045em;
  line-height: 1.02;
}

.landing-hero-description{
  max-width: 730px;
  margin: 1.35rem auto 0;
  font-size: .98rem;
  line-height: 1.75;
}

.landing-actions{
  display: flex;
  justify-content: center;
  gap: .7rem;
  margin-top: 1.85rem;
  flex-wrap: wrap;
}

.landing-button{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 45px;
  padding: .7rem 1.24rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .015em;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}

.landing-button:hover{
  transform: translateY(-1px);
  text-decoration: none;
}

.landing-button-primary{
  background: var(--landing-accent);
  color: #24201b;
}

.landing-button-primary:hover{
  background: var(--landing-accent-hover);
  color: #24201b;
}

.landing-button-secondary{
  border-color: var(--landing-line);
  color: var(--landing-text);
  background: rgba(255, 255, 255, .025);
}

.landing-button-secondary:hover{
  border-color: rgba(165, 143, 107, .58);
  background: rgba(165, 143, 107, .08);
  color: var(--landing-text);
}

.landing-hero-media{
  margin-top: 3.3rem;
}

.landing-hero-media img{
  display: block;
  width: min(1120px, 100%);
  max-height: 550px;
  margin: 0 auto;
  object-fit: cover;
  border: 1px solid var(--landing-line-soft);
  border-radius: 44px;
  box-shadow: var(--landing-shadow);
}

.landing-section{
  padding: 6.8rem 0 !important;
}

.landing-section-dark{
  background: var(--landing-bg);
}

.landing-methodology{
  display: grid;
  grid-template-columns: minmax(260px, .82fr) minmax(0, 1.18fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}

.landing-section-heading h2,
.landing-calculations-heading h2,
.landing-constructor h2,
.landing-contact h2,
.landing-centered-heading h2{
  margin: 0;
  font-size: clamp(2rem, 3.7vw, 3.15rem);
  font-weight: 620;
  letter-spacing: -.04em;
  line-height: 1.03;
}

.landing-heading-note{
  max-width: 340px;
  margin-top: 1.05rem;
  font-size: .86rem;
  line-height: 1.65;
}

.landing-lead{
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
}

.landing-methodology-grid{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.landing-methodology-grid article{
  min-height: 190px;
  padding: 1.15rem;
  border: 1px solid var(--landing-line-soft);
  border-radius: 17px;
  background: rgba(255, 255, 255, .018);
}

.landing-methodology-grid span,
.landing-card-index{
  color: var(--landing-accent-hover);
  font-size: .69rem;
  font-weight: 750;
  letter-spacing: .14em;
}

.landing-methodology-grid h3{
  margin: 1.55rem 0 .55rem;
  font-size: 1.02rem;
  font-weight: 650;
}

.landing-methodology-grid p{
  margin: 0;
  font-size: .82rem;
  line-height: 1.62;
}

.landing-section-light{
  background: var(--landing-light);
  color: var(--landing-light-text);
}

.landing-section-light .landing-eyebrow{
  color: #8a7553;
}

.landing-section-light h2,
.landing-section-light h3{
  color: var(--landing-light-text);
}

.landing-section-light p{
  color: var(--landing-light-muted);
}

.landing-centered-heading{
  max-width: 710px;
  margin: 0 auto;
  text-align: center;
}

.landing-centered-heading > p:last-child{
  max-width: 590px;
  margin: 1.1rem auto 0;
  font-size: .93rem;
  line-height: 1.7;
}

.landing-feature-list{
  display: grid;
  max-width: 760px;
  gap: 1.15rem;
  margin: 3rem auto 0;
}

.landing-feature{
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.landing-feature-icon{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--landing-accent);
  color: #fff;
  font-weight: 800;
}

.landing-feature h3{
  margin: .05rem 0 .25rem;
  font-size: .93rem;
  font-weight: 730;
}

.landing-feature p{
  margin: 0;
  font-size: .82rem;
  line-height: 1.6;
}

.landing-calculations{
  background:
    radial-gradient(640px 280px at 100% 0, rgba(165, 143, 107, .09), transparent 70%),
    var(--landing-bg);
}

.landing-calculations-heading{
  display: grid;
  grid-template-columns: minmax(260px, .9fr) minmax(0, 1.1fr);
  gap: 3rem;
  align-items: end;
  margin-bottom: 2.2rem;
}

.landing-calculations-heading > p{
  max-width: 630px;
  margin: 0;
  font-size: .93rem;
  line-height: 1.7;
}

.landing-calculation-grid{
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  gap: 1.1rem;
}

.landing-calculation-card{
  display: flex;
  min-height: 285px;
  flex-direction: column;
  padding: 1.35rem;
  border: 1px solid var(--landing-line-soft);
  border-radius: 22px;
  background: rgba(42, 42, 42, .96);
  box-shadow: var(--landing-shadow);
}

.landing-calculation-card-main{
  background:
    radial-gradient(460px 250px at 92% 0, rgba(165, 143, 107, .13), transparent 75%),
    rgba(42, 42, 42, .98);
}

.landing-card-topline,
.landing-card-footer{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.landing-pill{
  padding: .28rem .62rem;
  border: 1px solid rgba(165, 143, 107, .45);
  border-radius: 999px;
  color: var(--landing-accent-hover);
  font-size: .61rem;
  font-weight: 730;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.landing-calculation-card h3{
  max-width: 500px;
  margin: 3rem 0 .65rem;
  font-size: clamp(1.55rem, 2.7vw, 2.28rem);
  font-weight: 620;
  letter-spacing: -.035em;
}

.landing-calculation-card p{
  max-width: 580px;
  margin: 0;
  font-size: .88rem;
  line-height: 1.68;
}

.landing-card-footer{
  margin-top: auto;
  padding-top: 1.4rem;
  border-top: 1px solid var(--landing-line-soft);
}

.landing-card-footer span{
  color: var(--landing-muted);
  font-size: .72rem;
}

.landing-card-footer a{
  color: var(--landing-accent-hover);
  font-size: .76rem;
  font-weight: 730;
  text-decoration: none;
}

.landing-card-footer a:hover{
  color: var(--landing-text);
}

.landing-section-accent{
  background: var(--landing-accent);
  color: #25221e;
}

.landing-section-accent .landing-eyebrow,
.landing-section-accent h2,
.landing-section-accent p{
  color: #25221e;
}

.landing-constructor{
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .9fr);
  gap: clamp(2.5rem, 8vw, 7.5rem);
  align-items: center;
}

.landing-constructor > div:first-child > p:last-child{
  max-width: 650px;
  margin: 1.1rem 0 0;
  color: rgba(37, 34, 30, .78);
  font-size: .93rem;
  line-height: 1.75;
}

.landing-constructor-plan{
  overflow: hidden;
  border: 1px solid rgba(37, 34, 30, .2);
  border-radius: 18px;
  background: rgba(255, 255, 255, .11);
}

.landing-constructor-plan div{
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: .8rem;
  align-items: center;
  min-height: 70px;
  padding: .8rem 1rem;
  border-bottom: 1px solid rgba(37, 34, 30, .16);
}

.landing-constructor-plan div:last-child{
  border-bottom: 0;
}

.landing-constructor-plan span{
  color: rgba(37, 34, 30, .63);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .13em;
}

.landing-constructor-plan p{
  margin: 0;
  color: #25221e;
  font-size: .86rem;
  font-weight: 720;
}

.landing-contact{
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(0, .9fr);
  gap: clamp(3rem, 9vw, 9rem);
  align-items: end;
}

.landing-contact > div:last-child p{
  max-width: 590px;
  margin: 0 0 1.35rem;
  font-size: .93rem;
  line-height: 1.72;
}

.landing-footer{
  padding: 1.45rem 0;
  border-top: 1px solid var(--landing-line-soft);
  background: var(--landing-bg-deep);
}

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

.landing-footer a{
  color: var(--landing-text);
  font-size: .9rem;
  letter-spacing: .04em;
  text-decoration: none;
}

.landing-footer p{
  margin: 0;
  color: var(--landing-muted);
  font-size: .72rem;
}

@media (max-width: 1080px){
  .landing-brand{
    display: none;
  }

  .landing-methodology,
  .landing-calculations-heading,
  .landing-constructor,
  .landing-contact{
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .landing-heading-note{
    max-width: 620px;
  }
}

@media (max-width: 820px){
  .landing-nav,
  .landing-container{
    width: min(100% - 2rem, 1320px);
  }

  .landing-nav{
    min-height: 58px;
    padding: .68rem 0;
  }

  .landing-nav-left a:nth-child(2),
  .landing-nav-left a:nth-child(3),
  .landing-contact-link,
  .landing-user-email{
    display: none;
  }

  .landing-nav-side{
    gap: .78rem;
  }

  .landing-hero{
    padding: 4.35rem 0 3.2rem !important;
  }

  .landing-hero-media{
    margin-top: 2.5rem;
  }

  .landing-hero-media img{
    border-radius: 24px;
  }

  .landing-section{
    padding: 5rem 0 !important;
  }

  .landing-methodology-grid,
  .landing-calculation-grid{
    grid-template-columns: 1fr;
  }

  .landing-calculation-card{
    min-height: 245px;
  }
}

@media (max-width: 520px){
  .landing-nav-left a:first-child{
    display: none;
  }

  .landing-nav-cta{
    padding: .43rem .65rem;
    font-size: .7rem !important;
  }

  .landing-hero h1{
    font-size: clamp(2.35rem, 13vw, 3.3rem);
  }

  .landing-hero-description{
    font-size: .9rem;
  }

  .landing-actions{
    flex-direction: column;
  }

  .landing-button{
    width: 100%;
  }

  .landing-methodology-grid article{
    min-height: 0;
  }

  .landing-footer-inner{
    align-items: start;
    flex-direction: column;
  }
}