/* ==========================================================================
   Dune Investments - Main Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design System)
   -------------------------------------------------------------------------- */

:root {
  /* Primary - derived from logo */
  --orange-500: #F26522;
  --orange-600: #D94F0D;
  --orange-400: #FF7A3D;

  /* Neutrals - dark theme */
  --black: #0A0A0A;
  --gray-900: #141414;
  --gray-800: #1F1F1F;
  --gray-700: #2A2A2A;
  --gray-400: #888888;
  --gray-200: #CCCCCC;
  --gray-100: #E5E5E5;
  --white: #FFFFFF;

  /* Accents */
  --cyan: #00D4FF;
  --sand: #D4B896;

  /* Font families */
  --font-display: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Font sizes (fluid scaling) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --text-4xl: clamp(2.5rem, 2rem + 3vw, 4rem);
  --text-5xl: clamp(3rem, 2.5rem + 4vw, 5rem);

  /* Line heights */
  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.6;

  /* Letter spacing */
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-width: 1200px;
  --content-width: 800px;
  --nav-height: 80px;
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--gray-200);
  background-color: var(--black);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--white);
}

.section-label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--orange-500);
  margin-bottom: var(--space-6);
}

.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-700), transparent);
  margin: var(--space-8) 0;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.content-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
}

section {
  padding: var(--space-12) 0;
}

@media (min-width: 640px) {
  section {
    padding: var(--space-16) 0;
  }
}

@media (min-width: 1024px) {
  section {
    padding: var(--space-24) 0;
  }
}

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

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.nav.scrolled {
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-logo img {
  height: 40px;
  width: auto;
}

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

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--gray-200);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--orange-400);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--black);
  padding: var(--space-8) var(--space-6);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 999;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu a {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--white);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--gray-800);
}

.mobile-menu a:hover {
  color: var(--orange-400);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--nav-height) var(--space-6) var(--space-12);
  overflow: hidden;
}

#particles-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, transparent 0%, var(--black) 70%);
  z-index: 2;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
}

.hero-logo {
  width: 120px;
  height: auto;
  margin-bottom: var(--space-8);
  opacity: 0;
  transform: scale(0.95);
  animation: hero-logo-in 1s ease forwards;
}

@keyframes hero-logo-in {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  color: var(--white);
  opacity: 0;
  animation: hero-title-in 0.8s ease 0.3s forwards;
}

@keyframes hero-title-in {
  to {
    opacity: 1;
  }
}

@media (min-width: 640px) {
  .hero-logo {
    width: 160px;
  }
}

@media (min-width: 1024px) {
  .hero-logo {
    width: 200px;
  }
}

/* --------------------------------------------------------------------------
   Thesis Section
   -------------------------------------------------------------------------- */

.thesis {
  text-align: center;
}

.thesis-lead {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: var(--leading-snug);
  color: var(--white);
  margin-bottom: var(--space-8);
}

@media (min-width: 1024px) {
  .thesis-lead {
    font-size: var(--text-3xl);
  }
}

.thesis-body {
  text-align: left;
  margin-bottom: var(--space-8);
}

.thesis-body p {
  margin-bottom: var(--space-6);
}

.thesis-objectives {
  text-align: left;
  padding-left: var(--space-6);
  border-left: 2px solid var(--orange-500);
}

.thesis-objectives li {
  color: var(--gray-100);
  margin-bottom: var(--space-4);
  padding-left: var(--space-2);
}

.thesis-objectives li:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Strategies Section
   -------------------------------------------------------------------------- */

.strategies-category {
  margin-bottom: var(--space-16);
}

.strategies-category:last-child {
  margin-bottom: 0;
}

.category-label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: var(--space-6);
}

.strategies-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .strategies-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .strategies-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.strategy-card {
  background-color: var(--gray-900);
  border: 1px solid var(--gray-700);
  border-radius: 8px;
  padding: var(--space-6);
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.strategy-card:hover {
  border-color: var(--orange-500);
  transform: translateY(-4px);
}

.strategy-card.single {
  max-width: 400px;
  margin: 0 auto;
}

/* Credit & Venture inline row on desktop */
.strategies-row {
  display: block;
}

.strategies-row .strategies-category {
  margin-bottom: var(--space-16);
}

.strategies-row .strategies-category:last-child {
  margin-bottom: 0;
}

@media (min-width: 1024px) {
  .strategies-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }

  .strategies-row .strategies-category {
    margin-bottom: 0;
  }

  .strategies-row .strategies-category:first-child {
    grid-column: 1;
  }

  .strategies-row .strategies-category:last-child {
    grid-column: 2;
  }

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

.strategy-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  color: var(--orange-500);
}

.strategy-icon svg {
  width: 100%;
  height: 100%;
}

.strategy-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-2);
}

.strategy-description {
  font-size: var(--text-sm);
  color: var(--gray-400);
  line-height: var(--leading-normal);
}

/* Strategy Icon Animations */
.icon-volatility .wave {
  animation: volatility-pulse 2s ease-in-out infinite;
}

@keyframes volatility-pulse {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(1.3); }
}

.icon-pairs .wave-1 {
  animation: pairs-up 2s ease-in-out infinite;
}

.icon-pairs .wave-2 {
  animation: pairs-down 2s ease-in-out infinite;
}

@keyframes pairs-up {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes pairs-down {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

.icon-basis .line-1,
.icon-basis .line-2 {
  stroke-dasharray: 50;
  stroke-dashoffset: 50;
  animation: basis-draw 2s ease-in-out infinite;
}

@keyframes basis-draw {
  0% { stroke-dashoffset: 50; }
  50% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: 50; }
}

.icon-amm .shield {
  animation: shield-pulse 2s ease-in-out infinite;
}

@keyframes shield-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.icon-funding .arrow {
  animation: funding-rotate 4s linear infinite;
  transform-origin: center;
}

@keyframes funding-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.icon-ml .node {
  animation: node-pulse 1.5s ease-in-out infinite;
}

.icon-ml .node:nth-child(2) { animation-delay: 0.2s; }
.icon-ml .node:nth-child(3) { animation-delay: 0.4s; }
.icon-ml .node:nth-child(4) { animation-delay: 0.6s; }
.icon-ml .node:nth-child(5) { animation-delay: 0.8s; }

@keyframes node-pulse {
  0%, 100% { r: 4; opacity: 0.6; }
  50% { r: 6; opacity: 1; }
}

.icon-leverage .bar {
  transform-origin: bottom;
  animation: bar-grow 1.5s ease-out infinite;
}

.icon-leverage .bar:nth-child(1) { animation-delay: 0s; }
.icon-leverage .bar:nth-child(2) { animation-delay: 0.2s; }
.icon-leverage .bar:nth-child(3) { animation-delay: 0.4s; }

@keyframes bar-grow {
  0% { transform: scaleY(0.3); }
  50% { transform: scaleY(1); }
  100% { transform: scaleY(0.3); }
}

.icon-protocol .connection {
  stroke-dasharray: 10;
  animation: radiate 2s ease-in-out infinite;
}

.icon-protocol .connection:nth-child(2) { animation-delay: 0.3s; }
.icon-protocol .connection:nth-child(3) { animation-delay: 0.6s; }

@keyframes radiate {
  0% { stroke-dashoffset: 20; opacity: 0.3; }
  50% { stroke-dashoffset: 0; opacity: 1; }
  100% { stroke-dashoffset: -20; opacity: 0.3; }
}

/* --------------------------------------------------------------------------
   Team Section
   -------------------------------------------------------------------------- */

.team {
  text-align: center;
}

.team-body {
  text-align: left;
}

.team-body p {
  margin-bottom: var(--space-6);
}

.team-body p:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Partner Section
   -------------------------------------------------------------------------- */

.partner-intro {
  text-align: center;
  margin-bottom: var(--space-12);
}

.partner-intro p {
  max-width: var(--content-width);
  margin: 0 auto;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .metrics-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.metric-card {
  background-color: var(--gray-900);
  border: 1px solid var(--gray-700);
  border-radius: 8px;
  padding: var(--space-6);
  text-align: center;
}

.metric-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--orange-500);
  margin-bottom: var(--space-2);
}

.metric-label {
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--gray-400);
}

.partner-details {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .partner-details {
    grid-template-columns: repeat(3, 1fr);
  }
}

.partner-detail h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: var(--space-3);
}

.partner-detail p {
  font-size: var(--text-sm);
  color: var(--gray-200);
}

.partner-cta {
  text-align: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--gray-700);
}

.partner-cta p {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--white);
  margin-bottom: var(--space-6);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: var(--orange-500);
  color: var(--white);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  padding: var(--space-4) var(--space-8);
  border-radius: 6px;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-primary:hover {
  background-color: var(--orange-400);
  transform: scale(1.02);
}

.btn-primary svg {
  width: 20px;
  height: 20px;
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */

.contact {
  text-align: center;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  text-align: left;
}

@media (min-width: 640px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
    text-align: center;
  }
}

.contact-item h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: var(--space-2);
}

.contact-item a {
  font-size: var(--text-lg);
  color: var(--white);
  transition: color 0.2s ease;
}

.contact-item a:hover {
  color: var(--orange-400);
}

.telegram-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

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

.footer {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--gray-800);
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.footer-brand img {
  height: 32px;
  width: auto;
}

.footer-brand span {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  color: var(--white);
}

.footer-legal {
  font-size: var(--text-xs);
  color: var(--gray-400);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-6);
}

.footer-legal p {
  margin-bottom: var(--space-2);
}

.footer-copyright {
  font-size: var(--text-xs);
  color: var(--gray-400);
}

/* --------------------------------------------------------------------------
   Scroll Animations
   -------------------------------------------------------------------------- */

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }
.stagger-7 { transition-delay: 0.7s; }
.stagger-8 { transition-delay: 0.8s; }