/* ============================================================
   UPSIDE REAL ESTATE — Design Tokens & Base
   ============================================================ */

:root {
  /* Color */
  --navy-deep: #06043A;     /* darkest, header/footer base — derived from logo */
  --navy: #0A0A5A;          /* primary brand navy — matches logo #050054 */
  --navy-mid: #1A1A78;      /* hover / mid accents */
  --white: #FFFFFF;
  --mist: #F5F6F8;          /* section alternation */
  --line: #E1E4E9;          /* hairlines */
  --gold: #B6912C;          /* sparing accent only */
  --ink: #14181F;           /* near-black body text */
  --slate: #5A6472;         /* secondary text */

  /* Cream / stone tones (from the bull sculpture) */
  --cream: #DDD6CF;         /* light cream highlight */
  --cream-soft: #EFEAE3;    /* very soft cream for section backgrounds */
  --beige: #BDB3AA;         /* mid beige */
  --stone: #7F7267;         /* warm stone shadow */

  /* Type */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Scale */
  --container: 1180px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 96px;
  --space-7: 144px;

  --radius: 2px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  font-size: 16px;
}

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

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

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ------------------------------------------------------------
   Typography
   ------------------------------------------------------------ */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--navy-deep);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 500; }
h2 { font-size: clamp(1.9rem, 3.2vw, 2.7rem); font-weight: 500; }
h3 { font-size: 1.35rem; font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; }

p { color: var(--slate); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-2);
}

.eyebrow::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--gold);
  display: inline-block;
}

.lede {
  font-size: 1.18rem;
  color: var(--slate);
  max-width: 640px;
  line-height: 1.65;
}

/* ------------------------------------------------------------
   Buttons / Links
   ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 16px 30px;
  border: 1px solid var(--navy);
  border-radius: var(--radius);
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
}
.btn-primary:hover { background: var(--navy-deep); border-color: var(--navy-deep); }

.btn-ghost {
  background: transparent;
  color: var(--navy);
}
.btn-ghost:hover { background: var(--navy); color: var(--white); }

.btn-ghost-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn-ghost-light:hover { background: var(--white); color: var(--navy-deep); border-color: var(--white); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
  transition: gap 0.2s ease, color 0.2s ease;
}
.text-link:hover { gap: 13px; color: var(--navy-mid); }
.text-link svg { width: 14px; height: 14px; flex-shrink: 0; }

/* ------------------------------------------------------------
   Logo (real brand image — navy + white variants)
   ------------------------------------------------------------ */

.logo {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.logo img {
  height: 38px;
  width: auto;
  display: block;
}

.logo .logo-navy { display: block; }
.logo .logo-white { display: none; }

/* On dark backgrounds, show the white variant */
.logo.on-dark .logo-navy { display: none; }
.logo.on-dark .logo-white { display: block; }

.site-footer .logo img { height: 44px; }

/* ------------------------------------------------------------
   Header / Navigation
   ------------------------------------------------------------ */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 26, 47, 0.0);
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, padding 0.35s ease;
  padding: 26px 0;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
  backdrop-filter: blur(8px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header .logo { transition: opacity 0.3s ease; }
/* At top (transparent header over dark hero) → white logo */
.site-header:not(.scrolled) .logo .logo-navy { display: none; }
.site-header:not(.scrolled) .logo .logo-white { display: block; }
/* Scrolled (white header) → navy logo */
.site-header.scrolled .logo .logo-navy { display: block; }
.site-header.scrolled .logo .logo-white { display: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  position: relative;
  padding: 4px 0;
  transition: color 0.25s ease;
}

.site-header:not(.scrolled) .nav-links a { color: rgba(255,255,255,0.88); }
.site-header.scrolled .nav-links a { color: var(--navy-deep); }

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width 0.25s ease;
}
.nav-links a:hover::after { width: 100%; }
.nav-links a.active::after { width: 100%; }

.nav-cta {
  border: 1px solid currentColor;
  padding: 10px 20px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all 0.25s ease;
}
.site-header:not(.scrolled) .nav-cta { border-color: rgba(255,255,255,0.5); color: var(--white); }
.site-header:not(.scrolled) .nav-cta:hover { background: var(--white); color: var(--navy-deep); }
.site-header.scrolled .nav-cta { border-color: var(--navy); color: var(--navy); }
.site-header.scrolled .nav-cta:hover { background: var(--navy); color: var(--white); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 1.5px;
  background: var(--white);
  transition: background 0.3s ease;
}
.site-header.scrolled .nav-toggle span { background: var(--navy-deep); }

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5, 12, 22, 0.55);
  z-index: 105;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.nav-overlay.open {
  display: block;
  opacity: 1;
}

@media (max-width: 880px) {
  .nav-links { 
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(82vw, 340px);
    background: var(--navy-deep);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4);
    transform: translateX(100%);
    transition: transform 0.4s ease;
    z-index: 109;
    box-shadow: -20px 0 60px rgba(0,0,0,0.35);
  }
  .nav-links.open { transform: translateX(0); }
  .site-header:not(.scrolled) .nav-links a,
  .site-header.scrolled .nav-links a { color: rgba(255,255,255,0.9); font-size: 1.1rem; }
  .nav-cta { border-color: rgba(255,255,255,0.5) !important; color: var(--white) !important; }
  .nav-toggle { display: flex; z-index: 110; }
  .nav-toggle span { background: var(--white) !important; }
  .site-header.scrolled .nav-toggle span { background: var(--navy-deep) !important; }
  .site-header.scrolled.menu-open .nav-toggle span { background: var(--white) !important; }
}

/* ------------------------------------------------------------
   Hero (homepage — with stairs image)
   ------------------------------------------------------------ */

.hero-home {
  position: relative;
  background: var(--navy-deep);
  color: var(--white);
  padding: 200px 0 0;
  overflow: hidden;
}

.hero-home-inner {
  position: relative;
  z-index: 2;
  padding-bottom: 110px;
}

.hero-line {
  position: absolute;
  bottom: -8%;
  right: -6%;
  width: 55%;
  opacity: 0.10;
  z-index: 1;
}

@media (max-width: 880px) {
  .hero-home { padding-top: 150px; }
  .hero-line { width: 90%; bottom: 2%; }
}

/* ------------------------------------------------------------
   Full-width stairs band
   ------------------------------------------------------------ */

.stairs-band {
  width: 100%;
  height: 476px;
  background-image: url('../images/stairs.jpg');
  background-size: cover;
  background-position: center 62%;
  position: relative;
}
.stairs-band::after {
  /* gentle navy veil top + fade to the cream section below */
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6,4,58,0.35) 0%, rgba(6,4,58,0.10) 45%, rgba(239,234,227,0) 72%, var(--cream-soft) 100%);
}

@media (max-width: 880px) {
  .stairs-band { height: 308px; }
}

/* ------------------------------------------------------------
   Bull sculpture image
   ------------------------------------------------------------ */

.bull-img {
  width: 100%;
  max-width: 460px;
  height: auto;
  /* warm cream drop shadow to ground it softly */
  filter: drop-shadow(0 30px 40px rgba(127,114,103,0.22));
}

/* ------------------------------------------------------------
   Hero (subpages — shorter, image-band style)
   ------------------------------------------------------------ */

.page-hero {
  background: var(--navy-deep);
  color: var(--white);
  padding: 180px 0 var(--space-6);
  position: relative;
  overflow: hidden;
}

.page-hero .container { position: relative; z-index: 2; }

.page-hero h1 { color: var(--white); }
.page-hero .lede { color: rgba(255,255,255,0.72); }

.page-hero .ascend-bg {
  position: absolute;
  bottom: -10%;
  right: -5%;
  width: 60%;
  opacity: 0.12;
  z-index: 1;
}

/* ------------------------------------------------------------
   Sections / Generic layout
   ------------------------------------------------------------ */

section { position: relative; }

.section-pad { padding: var(--space-6) 0; }
.section-pad-sm { padding: var(--space-5) 0; }

.bg-mist { background: var(--mist); }
.bg-cream { background: var(--cream-soft); }
.bg-navy { background: var(--navy-deep); color: var(--white); }
.bg-navy h2, .bg-navy h3, .bg-navy h4 { color: var(--white); }
.bg-navy p { color: rgba(255,255,255,0.7); }

.section-head {
  max-width: 700px;
  margin-bottom: var(--space-5);
}

.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::before { display: none; }

.divider {
  width: 100%;
  height: 1px;
  background: var(--line);
  margin: 0;
}

/* Grid helpers */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }

@media (max-width: 880px) {
  .grid-2 { grid-template-columns: 1fr; gap: var(--space-4); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* ------------------------------------------------------------
   Stat band
   ------------------------------------------------------------ */

.stat-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}

.stat {
  padding: var(--space-4) var(--space-3);
  border-right: 1px solid var(--line);
}
.stat:last-child { border-right: none; }

.stat .num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 500;
  color: var(--navy-deep);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}
.stat .label {
  font-size: 0.82rem;
  color: var(--slate);
  letter-spacing: 0.01em;
}

@media (max-width: 880px) {
  .stat-band { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid var(--line); }
}

/* ------------------------------------------------------------
   Service / Feature cards
   ------------------------------------------------------------ */

.service-card {
  border: 1px solid var(--line);
  padding: var(--space-4);
  transition: border-color 0.3s ease, transform 0.3s ease;
  background: var(--white);
}
.service-card:hover {
  border-color: var(--navy);
  transform: translateY(-3px);
}

.service-card .index {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
  display: block;
}

.service-card h3 { margin-bottom: var(--space-2); }
.service-card p { font-size: 0.96rem; }

/* ------------------------------------------------------------
   Kontakt-CTA with skyline image
   ------------------------------------------------------------ */

.cta-skyline {
  position: relative;
  background: var(--navy-deep);
  overflow: hidden;
  padding: var(--space-7) 0;
}

.cta-skyline-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/skyline.jpg');
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.cta-skyline-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  /* deep navy overlay so the photo reads as a brand-colored backdrop */
  background: linear-gradient(180deg, rgba(6,4,58,0.82) 0%, rgba(6,4,58,0.72) 55%, rgba(6,4,58,0.86) 100%);
}

.cta-skyline-inner {
  position: relative;
  z-index: 1;
}

.cta-mail {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 400;
  color: var(--white);
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.45);
  transition: gap 0.25s ease, border-color 0.25s ease;
}
.cta-mail:hover {
  gap: 22px;
  border-color: var(--white);
}
.cta-mail svg {
  width: clamp(20px, 2.5vw, 28px);
  height: clamp(20px, 2.5vw, 28px);
  flex-shrink: 0;
}

@media (max-width: 880px) {
  .cta-skyline { padding: var(--space-6) 0; }
}

/* ------------------------------------------------------------
   Footer
   ------------------------------------------------------------ */

.site-footer {
  background: var(--navy-deep);
  color: rgba(255,255,255,0.65);
  padding-top: var(--space-6);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.footer-top h4 {
  color: var(--white);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.footer-top p { color: rgba(255,255,255,0.6); font-size: 0.93rem; max-width: 320px; }

.footer-links { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 0.93rem; color: rgba(255,255,255,0.65); transition: color 0.2s ease; }
.footer-links a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0 var(--space-4);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

@media (max-width: 880px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-4); }
  .footer-bottom { flex-direction: column; gap: var(--space-2); text-align: center; }
}

/* ------------------------------------------------------------
   Reveal-on-scroll
   ------------------------------------------------------------ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ------------------------------------------------------------
   Contact form
   ------------------------------------------------------------ */

.form-row { margin-bottom: var(--space-3); }
.form-row label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 8px;
}
.form-row input, .form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  border-radius: var(--radius);
  transition: border-color 0.2s ease;
}
.form-row input:focus, .form-row textarea:focus {
  border-color: var(--navy);
  outline: none;
}
.form-row textarea { min-height: 140px; resize: vertical; }

/* ------------------------------------------------------------
   Misc
   ------------------------------------------------------------ */

.tag-row { display: flex; gap: 10px; flex-wrap: wrap; }
.tag {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--navy);
  border: 1px solid var(--line);
  padding: 7px 14px;
  border-radius: 999px;
}

.breadcrumb {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-3);
}
.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: var(--white); }