/* ============================================
   RCA — Real Capital Advice
   Design Tokens & Component Styles
   ============================================ */

:root {
  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.8125rem, 0.75rem + 0.3vw, 0.9375rem);
  --text-base: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(1.875rem, 1.2rem + 2.2vw, 3rem);
  --text-hero: clamp(2.25rem, 0.8rem + 4.5vw, 4.5rem);

  /* Spacing (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Switzer', 'Helvetica Neue', sans-serif;
  --font-body: 'Switzer', 'Helvetica Neue', sans-serif;

  /* Transition */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Radius */
  --radius-sm: 2px;
}

/* ---- COLOR SYSTEM: Deep Blue ---- */
:root,
[data-theme='light'] {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-surface-alt: #ebeef2;
  --color-border: #d0d5dd;
  --color-divider: #dde1e8;

  --color-text: #0f1a2e;
  --color-text-muted: #5a6578;
  --color-text-faint: #99a3b4;

  --color-primary: #1e3a5f;
  --color-primary-hover: #152b48;
  --color-primary-light: #e8edf4;

  --color-accent: #2c5282;
  --color-accent-light: rgba(44, 82, 130, 0.08);
}

[data-theme='dark'] {
  --color-bg: #0b1120;
  --color-surface: #111827;
  --color-surface-alt: #172033;
  --color-border: #2a3550;
  --color-divider: #1e293b;

  --color-text: #e2e5ea;
  --color-text-muted: #a8b4c4;
  --color-text-faint: #7585a0;

  --color-primary: #7ba8d8;
  --color-primary-hover: #9fc2e8;
  --color-primary-light: rgba(107, 155, 210, 0.12);

  --color-accent: #9fc2e8;
  --color-accent-light: rgba(143, 181, 224, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0b1120;
    --color-surface: #111827;
    --color-surface-alt: #172033;
    --color-border: #2a3550;
    --color-divider: #1e293b;
    --color-text: #e2e5ea;
    --color-text-muted: #a8b4c4;
    --color-text-faint: #7585a0;
    --color-primary: #7ba8d8;
    --color-primary-hover: #9fc2e8;
    --color-primary-light: rgba(107, 155, 210, 0.12);
    --color-accent: #9fc2e8;
    --color-accent-light: rgba(143, 181, 224, 0.06);
  }
}


/* ============================================
   LAYOUT
   ============================================ */

.container {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-12);
  }
}

section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}


/* ============================================
   HEADER / NAV
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  background: transparent;
  transition: background 400ms ease, box-shadow 400ms ease, padding 300ms ease;
}

.site-header.scrolled {
  background: rgba(11, 17, 32, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
  padding: var(--space-3) 0;
}

[data-theme='light'] .site-header.scrolled {
  background: rgba(245, 246, 248, 0.92);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .header-inner {
    padding-inline: var(--space-12);
  }
}

.logo {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  transition: color 400ms ease;
}

.site-header.scrolled .logo {
  color: var(--color-text);
}

[data-theme='light'] .logo {
  color: #fff;
}

[data-theme='light'] .site-header.scrolled .logo {
  color: var(--color-text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  transition: color 300ms ease;
}

.nav-links a:hover {
  color: #fff;
}

.site-header.scrolled .nav-links a {
  color: var(--color-text-muted);
}

.site-header.scrolled .nav-links a:hover {
  color: var(--color-text);
}

[data-theme='light'] .nav-links a {
  color: rgba(255,255,255,0.7);
}

[data-theme='light'] .site-header.scrolled .nav-links a {
  color: var(--color-text-muted);
}

[data-theme='light'] .site-header.scrolled .nav-links a:hover {
  color: var(--color-text);
}

/* Theme toggle */
.theme-toggle {
  color: rgba(255,255,255,0.6);
  padding: var(--space-1);
  transition: color 300ms ease;
}

.theme-toggle:hover {
  color: #fff;
}

.site-header.scrolled .theme-toggle {
  color: var(--color-text-faint);
}

.site-header.scrolled .theme-toggle:hover {
  color: var(--color-text);
}

/* Mobile menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  color: rgba(255,255,255,0.7);
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: currentColor;
  transition: transform 300ms ease, opacity 200ms ease;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

@media (max-width: 767px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(11, 17, 32, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-6);
  }

  [data-theme='light'] .nav-links {
    background: rgba(245, 246, 248, 0.97);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    display: block;
    padding: var(--space-4) 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: var(--text-sm);
  }

  [data-theme='light'] .nav-links a {
    color: var(--color-text-muted);
    border-bottom-color: var(--color-divider);
  }

  .nav-links li:last-child a {
    border-bottom: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .site-header.scrolled .mobile-menu-btn {
    color: var(--color-text-muted);
  }
}


/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  max-height: 1000px;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  overflow: hidden;
  padding: 0;
}

/* Slideshow */
.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.8s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Dark overlay */
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to top,
    rgba(8, 12, 25, 0.85) 0%,
    rgba(8, 12, 25, 0.45) 40%,
    rgba(8, 12, 25, 0.25) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-16);
  width: 100%;
}

@media (min-width: 768px) {
  .hero-content {
    padding: 0 var(--space-12) var(--space-20);
  }
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1rem + 3.5vw, 4.5rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: #ffffff;
  line-height: 1.05;
  margin-bottom: var(--space-6);
  white-space: nowrap;
}

.hero-claim {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
}

/* Claim glow pulse — always readable, accent color bloom */
@keyframes claim-glow {
  0%   { color: rgba(255,255,255,0.55); text-shadow: none; }
  15%  { color: #6ba8d6; text-shadow: 0 0 12px rgba(107,168,214,0.4), 0 0 40px rgba(107,168,214,0.15); }
  40%  { color: #8fc4ea; text-shadow: 0 0 20px rgba(143,196,234,0.5), 0 0 60px rgba(107,168,214,0.2); }
  65%  { color: #6ba8d6; text-shadow: 0 0 12px rgba(107,168,214,0.35), 0 0 40px rgba(107,168,214,0.1); }
  100% { color: rgba(255,255,255,0.55); text-shadow: none; }
}

.hero-claim.glow {
  animation: claim-glow 2.5s ease-in-out;
}

/* Slide indicators */
.hero-indicators {
  position: absolute;
  bottom: var(--space-8);
  right: var(--space-6);
  z-index: 3;
  display: flex;
  gap: var(--space-2);
}

@media (min-width: 768px) {
  .hero-indicators {
    right: var(--space-12);
  }
}

.hero-indicator {
  width: 32px;
  height: 2px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 1px;
  overflow: hidden;
  cursor: pointer;
}

.hero-indicator .fill {
  height: 100%;
  width: 0%;
  background: rgba(255, 255, 255, 0.8);
  transition: width 0.3s ease;
}

.hero-indicator.active .fill {
  width: 100%;
  transition: width 7s linear;
}

.hero-indicator.completed .fill {
  width: 100%;
  transition: width 0.3s ease;
}


/* ============================================
   EXPERTISE SECTION (Sektion 2)
   ============================================ */

.expertise {
  background: var(--color-bg);
}

.section-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-12);
}

.expertise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
}

@media (min-width: 768px) {
  .expertise-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-1);
  }
}

@media (min-width: 1024px) {
  .expertise-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.expertise-item {
  padding: var(--space-8);
  border-bottom: 1px solid var(--color-divider);
  transition: background 300ms ease;
}

@media (min-width: 768px) {
  .expertise-item {
    border-bottom: none;
    border-right: 1px solid var(--color-divider);
    padding: var(--space-8) var(--space-8);
  }

  .expertise-item:nth-child(2n) {
    border-right: none;
  }

  .expertise-item:nth-child(n+3) {
    border-top: 1px solid var(--color-divider);
  }
}

@media (min-width: 1024px) {
  .expertise-item {
    border-right: 1px solid var(--color-divider);
    border-top: none;
  }

  .expertise-item:nth-child(2n) {
    border-right: 1px solid var(--color-divider);
  }

  .expertise-item:nth-child(3n) {
    border-right: none;
  }

  .expertise-item:nth-child(n+4) {
    border-top: 1px solid var(--color-divider);
  }
}

.expertise-item:hover {
  background: var(--color-accent-light);
}

.expertise-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.expertise-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}


/* ============================================
   TRACK RECORD SECTION (Sektion 3)
   ============================================ */

.track-record {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.track-content {
  max-width: 720px;
}

.track-statement {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 300;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.track-digital {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-16);
  padding-left: var(--space-6);
  border-left: 2px solid var(--color-primary);
}

[data-theme='dark'] .track-digital {
  border-left-color: var(--color-primary);
}

/* Ticker */
.ticker-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-6);
}

.ticker-wrapper {
  overflow: hidden;
  position: relative;
  padding: var(--space-6) 0;
}

.ticker-wrapper::before,
.ticker-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  z-index: 2;
  pointer-events: none;
}

.ticker-wrapper::before {
  left: 0;
  background: linear-gradient(to right, var(--color-surface), transparent);
}

.ticker-wrapper::after {
  right: 0;
  background: linear-gradient(to left, var(--color-surface), transparent);
}

.ticker-track {
  display: flex;
  gap: var(--space-10);
  animation: ticker-scroll 45s linear infinite;
  width: max-content;
}

.ticker-track:hover {
  animation-play-state: paused;
}

@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.ticker-item {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text);
  white-space: nowrap;
  flex-shrink: 0;
  opacity: 0.85;
  transition: opacity 300ms ease;
}

.ticker-item:hover {
  opacity: 1;
}

.ticker-separator {
  color: var(--color-primary);
  opacity: 0.5;
  flex-shrink: 0;
}


/* ============================================
   CONNECT SECTION (Sektion 4)
   ============================================ */

.connect {
  background: var(--color-bg);
}

.connect-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-10);
}

@media (min-width: 768px) {
  .connect-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.connect-heading {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.connect-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 480px;
}

.connect-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
}

@media (min-width: 768px) {
  .connect-details {
    align-items: flex-end;
    text-align: right;
  }
}

.connect-link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: color 200ms ease;
}

.connect-link:hover {
  color: var(--color-primary);
}

.connect-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.5;
}

.linkedin-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
  margin-top: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  transition: color 200ms ease, border-color 200ms ease;
}

.linkedin-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.linkedin-btn svg {
  width: 14px;
  height: 14px;
}


/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding: var(--space-8) 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}

.footer-links a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  transition: color 200ms ease;
}

.footer-links a:hover {
  color: var(--color-text-muted);
}


/* ============================================
   SCROLL REVEAL
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger children */
.reveal-stagger .reveal {
  transition-delay: calc(var(--stagger, 0) * 100ms);
}