/* ============================================
   OSARGI — Style
   Make it eternal
   ============================================ */

/* --- Custom Properties --- */
:root {
  --color-bg: #0e0c0a;
  --color-bg-warm: #151210;
  --color-bg-card: #1a1714;
  --color-text: #e8e0d4;
  --color-text-muted: #9a8e7f;
  --color-text-dim: #6b6054;
  --color-accent: #c9a96e;
  --color-accent-light: #dfc494;
  --color-accent-glow: rgba(201, 169, 110, 0.15);
  --color-warm: #8b5e3c;
  --color-border: rgba(201, 169, 110, 0.12);
  --color-border-strong: rgba(201, 169, 110, 0.25);

  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Outfit', 'Helvetica Neue', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --space-2xl: 12rem;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

::selection {
  background: var(--color-accent);
  color: var(--color-bg);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* --- Grain Overlay --- */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem var(--space-md);
  transition: background 0.5s var(--ease-smooth), padding 0.4s var(--ease-smooth);
}

.nav--scrolled {
  background: rgba(14, 12, 10, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1rem var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 24px;
  position: relative;
  z-index: 1001;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text);
  position: absolute;
  left: 0;
  transition: all 0.3s var(--ease-out);
}

.nav__toggle span:first-child { top: 4px; }
.nav__toggle span:last-child { bottom: 4px; }

.nav__toggle.active span:first-child {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}
.nav__toggle.active span:last-child {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav__links a {
  font-size: 0.82rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color 0.3s;
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.4s var(--ease-out);
}

.nav__links a:hover {
  color: var(--color-text);
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__cta {
  padding: 0.5rem 1.4rem !important;
  border: 1px solid var(--color-border-strong) !important;
  border-radius: 100px;
  transition: all 0.3s var(--ease-out) !important;
}

.nav__cta:hover {
  background: var(--color-accent) !important;
  color: var(--color-bg) !important;
  border-color: var(--color-accent) !important;
}

.nav__cta::after { display: none !important; }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
}

.hero__orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  animation: orbFloat1 12s ease-in-out infinite;
}

.hero__orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-warm) 0%, transparent 70%);
  bottom: 10%;
  left: 20%;
  animation: orbFloat2 15s ease-in-out infinite;
}

.hero__orb--3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(180, 140, 100, 0.4) 0%, transparent 70%);
  top: 40%;
  right: 10%;
  animation: orbFloat3 18s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-30px); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translateY(0) translateX(0); }
  33% { transform: translateY(-20px) translateX(15px); }
  66% { transform: translateY(10px) translateX(-10px); }
}

@keyframes orbFloat3 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(20px); }
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: var(--space-md);
}

.hero__pre {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 10rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--color-accent);
  margin-bottom: 0.2em;
  text-shadow: 0 0 80px var(--color-accent-glow);
}

.hero__motto {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 300;
  font-style: italic;
  color: var(--color-text);
  letter-spacing: 0.08em;
}

.hero__line {
  width: 50px;
  height: 1px;
  background: var(--color-accent);
  margin: var(--space-lg) auto;
  opacity: 0.5;
}

.hero__sub {
  font-size: 1rem;
  font-weight: 200;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.hero__scroll {
  display: inline-block;
  margin-top: var(--space-lg);
  color: var(--color-text-dim);
  transition: color 0.3s;
}

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

.hero__scroll-dot {
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { cy: 12; opacity: 1; }
  50% { cy: 26; opacity: 0.3; }
}

/* --- Section Commons --- */
.section {
  padding: var(--space-2xl) 0;
  position: relative;
}

.section__label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

/* --- Philosophy --- */
.philosophy {
  background: var(--color-bg-warm);
}

.philosophy__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-xl);
  align-items: start;
}

.philosophy__lead {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.philosophy__text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.philosophy__text em {
  color: var(--color-accent-light);
  font-style: italic;
}

.philosophy__text strong {
  color: var(--color-text);
  font-weight: 400;
}

.philosophy__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  text-align: center;
  position: relative;
}

.philosophy__card::before {
  content: '';
  position: absolute;
  inset: -1px;
  background: linear-gradient(135deg, var(--color-accent-glow), transparent 50%);
  z-index: -1;
}

.philosophy__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-md);
  color: var(--color-accent);
  opacity: 0.7;
}

.philosophy__quote {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 300;
  font-style: italic;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* --- Marquee --- */
.marquee {
  padding: var(--space-md) 0;
  overflow: hidden;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.marquee__inner {
  display: flex;
  gap: 2rem;
  white-space: nowrap;
  animation: marqueeScroll 30s linear infinite;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  font-style: italic;
  color: var(--color-text-dim);
}

.marquee__dot {
  color: var(--color-accent);
  font-size: 0.6rem;
  display: flex;
  align-items: center;
  font-style: normal;
}

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

/* --- Process --- */
.process__intro {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 300;
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.process__step {
  padding: var(--space-lg) var(--space-md);
  border: 1px solid var(--color-border);
  position: relative;
  transition: border-color 0.4s, background 0.4s;
}

.process__step:hover {
  border-color: var(--color-border-strong);
  background: var(--color-bg-card);
}

.process__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 300;
  color: var(--color-accent);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: var(--space-md);
}

.process__icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
  opacity: 0.6;
  margin-bottom: var(--space-md);
}

.process__step h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.process__step p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --- Name Section --- */
.name-section {
  background: var(--color-bg-warm);
}

.name__grid {
  display: grid;
  grid-template-columns: 0.5fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.name__card {
  padding: var(--space-lg);
  border-left: 2px solid var(--color-accent);
  margin-bottom: var(--space-lg);
}

.name__word {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.name__highlight {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--color-accent);
}

.name__lang {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.name__meaning {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.name__meaning em {
  color: var(--color-accent-light);
}

.name__card p:last-child {
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.name__card em {
  color: var(--color-accent-light);
  font-style: italic;
}

.name__etymology {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  font-style: italic;
  color: var(--color-text-dim);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* --- Katom --- */
.katom__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.katom__lead {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.katom__lead em {
  color: var(--color-accent-light);
}

.katom__text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.katom__text strong {
  color: var(--color-accent);
  font-weight: 400;
}

.katom__spirits {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

.katom__spirit {
  text-align: center;
}

.katom__animal {
  width: 120px;
  height: 140px;
  margin: 0 auto var(--space-sm);
  color: var(--color-accent);
  opacity: 0.5;
  transition: opacity 0.4s;
}

.katom__spirit:hover .katom__animal {
  opacity: 0.8;
}

.katom__name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.katom__ampersand {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--color-text-dim);
  opacity: 0.4;
}

/* --- Platform --- */
.platform {
  background: var(--color-bg-warm);
}

.platform__intro {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: var(--space-xl);
}

.platform__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.platform__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  padding: var(--space-lg) var(--space-md);
  transition: border-color 0.4s, transform 0.4s var(--ease-out);
}

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

.platform__card-icon {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.platform__card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.platform__card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.platform__features {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.platform__features li {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: 100px;
}

.platform__note {
  text-align: center;
  font-style: italic;
  color: var(--color-text-dim);
  font-size: 0.92rem;
}

.platform__note em {
  color: var(--color-accent-light);
}

/* --- Contact --- */
.contact {
  text-align: center;
}

.contact__inner {
  max-width: 600px;
  margin: 0 auto;
}

.contact__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.contact__text {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.contact__actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.9rem 2.4rem;
  border-radius: 100px;
  transition: all 0.35s var(--ease-out);
  cursor: pointer;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border: 1px solid var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-light);
  box-shadow: 0 0 40px var(--color-accent-glow);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-strong);
}

.btn--ghost:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.contact__details {
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.contact__sep {
  margin: 0 0.8rem;
  color: var(--color-accent);
}

/* --- Footer --- */
.footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
}

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

.footer__left {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.footer__tagline {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--color-text-dim);
}

.footer__right {
  text-align: right;
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.footer__sub {
  font-style: italic;
  margin-top: 0.3rem;
  opacity: 0.6;
}

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal--delay-1 { transition-delay: 0.15s; }
.reveal--delay-2 { transition-delay: 0.3s; }
.reveal--delay-3 { transition-delay: 0.45s; }
.reveal--delay-4 { transition-delay: 0.6s; }
.reveal--delay-5 { transition-delay: 0.75s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .process__steps {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 768px) {
  .nav__toggle {
    display: block;
  }

  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    flex-direction: column;
    justify-content: center;
    background: rgba(14, 12, 10, 0.97);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-out);
    border-left: 1px solid var(--color-border);
  }

  .nav__links.active {
    transform: translateX(0);
  }

  .nav__links a {
    font-size: 1rem;
  }

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

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

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

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

  .contact__actions {
    flex-direction: column;
    align-items: center;
  }

  .footer__inner {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .footer__left {
    flex-direction: column;
    align-items: center;
  }

  .footer__right {
    text-align: center;
  }

  .hero__title {
    font-size: clamp(3rem, 15vw, 6rem);
  }

  .marquee__inner {
    font-size: 1.1rem;
    animation-duration: 20s;
  }
}