:root {
  --bg-main: #0a0614;
  --bg-dark: #07030f;
  --purple: #7c4dff;
  --pink: #ff5fa2;
  --text-main: #f5f0ff;
  --text-soft: #c9b8e6;
  --radius: 18px;
  --transition: all .35s cubic-bezier(.16,1,.3,1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: radial-gradient(circle at top, #22103a, var(--bg-main));
  color: var(--text-main);
  overflow-x: hidden;
}

/* BACKGROUND ORBS */
.bg-orbs::before,
.bg-orbs::after {
  content: '';
  position: fixed;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: .6;
  z-index: -1;
}

.bg-orbs::before {
  background: var(--purple);
  top: 10%;
  left: -10%;
}

.bg-orbs::after {
  background: var(--pink);
  bottom: 10%;
  right: -10%;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  backdrop-filter: blur(14px);
  background: rgba(10,6,20,.75);
  z-index: 10;
}

.nav-inner {
  max-width: 1200px;
  margin: auto;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 900;
  letter-spacing: 2px;
}

nav a {
  margin-left: 24px;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--pink));
  transition: var(--transition);
}

nav a:hover::after {
  width: 100%;
}

.btn-nav {
  padding: 8px 18px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--purple), var(--pink));
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-inner {
  max-width: 900px;
  margin: auto;
  padding: 120px 20px 40px;
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  line-height: 1.05;
  margin-bottom: 30px;
}

.hero h1 span {
  background: linear-gradient(120deg, var(--purple), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  max-width: 520px;
  color: var(--text-soft);
  font-size: 1.05rem;
}

.hero-buttons {
  margin-top: 40px;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

/* BUTTONS */
.btn-main {
  padding: 14px 42px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 0 40px rgba(124,77,255,.45);
  transition: var(--transition);
}

.btn-main:hover {
  transform: translateY(-4px) scale(1.05);
}

.btn-outline {
  padding: 14px 42px;
  border-radius: 999px;
  border: 2px solid var(--purple);
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition);
}

.btn-outline:hover {
  background: var(--purple);
}

.big {
  font-size: 1.1rem;
}

/* SECTIONS */
.section {
  padding: 90px 20px;
  max-width: 1100px;
  margin: auto;
}

.section.dark {
  background: linear-gradient(180deg, transparent, var(--bg-dark));
}

.section h2 {
  font-size: 2.6rem;
  margin-bottom: 24px;
}

.section p {
  max-width: 640px;
  color: var(--text-soft);
  line-height: 1.8;
}

/* GRID */
.grid {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.card {
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 34px;
  border: 1px solid rgba(124,77,255,.18);
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 0 50px rgba(255,95,162,.35);
}

/* PROJECTS */
.projects {
  margin-top: 40px;
  display: grid;
  gap: 22px;
}

.project {
  padding: 26px 30px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text-main);
  text-decoration: none;
  font-size: 1.2rem;
  transition: var(--transition);
}

.project:hover {
  transform: translateX(12px);
  background: linear-gradient(120deg, rgba(124,77,255,.25), rgba(255,95,162,.25));
}

/* CTA */
.cta {
  text-align: center;
}

.cta p {
  margin-bottom: 30px;
}

/* FOOTER */
footer {
  padding: 40px;
  text-align: center;
  opacity: .6;
}

/* =========================
   SCROLL ANIMATIONS (CORE)
========================= */
[data-animate] {
  opacity: 0;
  transform: translateY(40px) scale(.98);
  filter: blur(6px);
  transition:
    opacity .9s cubic-bezier(.16,1,.3,1),
    transform .9s cubic-bezier(.16,1,.3,1),
    filter .9s ease;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

/* =========================
   STAGGER EFFECTS
========================= */
.grid .card[data-animate]:nth-child(1) { transition-delay: .1s; }
.grid .card[data-animate]:nth-child(2) { transition-delay: .25s; }
.grid .card[data-animate]:nth-child(3) { transition-delay: .4s; }

.projects .project[data-animate]:nth-child(1) { transition-delay: .15s; }
.projects .project[data-animate]:nth-child(2) { transition-delay: .3s; }
.projects .project[data-animate]:nth-child(3) { transition-delay: .45s; }

/* =========================
   HERO MICRO-ANIMATIONS
========================= */
.hero h1 {
  animation: heroTitle 1.2s cubic-bezier(.16,1,.3,1) forwards;
}

.hero p {
  animation: heroText 1.2s .2s cubic-bezier(.16,1,.3,1) forwards;
  opacity: 0;
}

.hero-buttons {
  animation: heroButtons 1.2s .4s cubic-bezier(.16,1,.3,1) forwards;
  opacity: 0;
}

@keyframes heroTitle {
  from {
    opacity: 0;
    transform: translateY(30px) scale(.96);
    filter: blur(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

@keyframes heroText {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroButtons {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================
   LOADER PREMIUM
========================= */
.loader {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at top, #2b1150, var(--bg-main));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity .8s ease, visibility .8s ease;
}

.loader.hide {
  opacity: 0;
  visibility: hidden;
}

.loader-inner {
  text-align: center;
}

.loader-logo {
  display: block;
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: 4px;
  margin-bottom: 28px;
  background: linear-gradient(120deg, var(--purple), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: pulseText 1.8s ease-in-out infinite;
}

/* PROGRESS BAR */
.loader-bar {
  width: 220px;
  height: 4px;
  background: rgba(255,255,255,.12);
  border-radius: 4px;
  overflow: hidden;
}

.loader-bar span {
  display: block;
  height: 100%;
  width: 40%;
  background: linear-gradient(120deg, var(--purple), var(--pink));
  animation: loadingMove 1.4s cubic-bezier(.16,1,.3,1) infinite;
}

/* ANIMATIONS */
@keyframes loadingMove {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(300%);
  }
}

@keyframes pulseText {
  0% {
    opacity: .6;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: .6;
  }
}

/* =========================
   NAVBAR SCROLL STATE
========================= */
.nav {
  transition:
    background .35s cubic-bezier(.16,1,.3,1),
    box-shadow .35s cubic-bezier(.16,1,.3,1),
    padding .35s cubic-bezier(.16,1,.3,1);
}

.nav.scrolled {
  background: rgba(10,6,20,.92);
  box-shadow: 0 12px 45px rgba(0,0,0,.55);
}

/* Opcional: navbar más compacta al hacer scroll */
.nav.scrolled .nav-inner {
  padding: 14px 20px;
}

/* =========================
   PROJECT DETAIL PAGE STYLING
========================= */
.project-details {
  padding: 90px 20px;
  max-width: 1100px;
  margin: auto;
  color: var(--text-main);
}

.project-details h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
}

.project-description {
  max-width: 750px;
  color: var(--text-soft);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.project-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.project-gallery img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
  transition: transform 0.3s ease-in-out;
}

.project-gallery img:hover {
  transform: scale(1.05);
}

.project-details-info h2 {
  font-size: 2.2rem;
  margin-top: 40px;
}

.project-details-info ul {
  list-style-type: disc;
  margin-left: 20px;
  margin-top: 10px;
  color: var(--text-soft);
}

.project-details-info ul li {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.project-buttons {
  margin-top: 50px;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.project-buttons .btn-main {
  background: linear-gradient(135deg, var(--purple), var(--pink));
}

.project-buttons .btn-outline {
  background: none;
  border: 2px solid var(--purple);
}