/* ===== CSS VARIABLES ===== */
:root {
  --bg: #f5f4f0;
  --bg2: #ffffff;
  --text: #0a0a0a;
  --text2: #444444;
  --accent: #0a0a0a;
  --accent2: #333333;
  --border: rgba(0,0,0,0.1);
  --card-bg: #ffffff;
  --card-shadow: 0 4px 30px rgba(0,0,0,0.08);
  --nav-bg: rgba(245,244,240,0.85);
  --skill-bg: #e8e7e3;
  --skill-fill: #0a0a0a;
  --badge-bg: #0a0a0a;
  --badge-text: #ffffff;
  --tag-bg: #ebebeb;
  --tag-text: #0a0a0a;
  --stat-line: rgba(0,0,0,0.12);
  --tech-color: #666666;
  --btn-bg: #0a0a0a;
  --btn-text: #ffffff;
  --btn-sec-border: #0a0a0a;
  --btn-sec-text: #0a0a0a;
  --yt-bg: #0a0a0a;
  --yt-text: #ffffff;
  --footer-bg: #e8e7e3;
}

[data-theme="dark"] {
  --bg: #050505;
  --bg2: #0d0d0d;
  --text: #ffffff;
  --text2: #a0a0a0;
  --accent: #ffffff;
  --accent2: #cccccc;
  --border: rgba(255,255,255,0.08);
  --card-bg: #111111;
  --card-shadow: 0 4px 30px rgba(0,0,0,0.5);
  --nav-bg: rgba(5,5,5,0.9);
  --skill-bg: #1a1a1a;
  --skill-fill: #ffffff;
  --badge-bg: #ffffff;
  --badge-text: #000000;
  --tag-bg: #1a1a1a;
  --tag-text: #ffffff;
  --stat-line: rgba(255,255,255,0.08);
  --tech-color: #888888;
  --btn-bg: #ffffff;
  --btn-text: #000000;
  --btn-sec-border: #ffffff;
  --btn-sec-text: #ffffff;
  --yt-bg: #111111;
  --yt-text: #ffffff;
  --footer-bg: #0d0d0d;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

/* ===== CURSOR ===== */
.cursor {
  width: 8px; height: 8px;
  background: var(--text);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s;
}
.cursor-follower {
  width: 32px; height: 32px;
  border: 1.5px solid var(--text);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  opacity: 0.4;
  transition: opacity 0.3s;
}
@media (hover: none) { .cursor, .cursor-follower { display: none; } }

/* ===== NAV FLOTANTE ===== */
.topnav {
  position: fixed; top: 20px; left: 50%;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: 6px;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  z-index: 1000;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  transition: background 0.4s;
}
.topnav a {
  text-decoration: none;
  color: var(--text2);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.topnav a:hover {
  background: var(--border);
  color: var(--text);
}
#theme-toggle {
  background: var(--text);
  color: var(--bg);
  border: none;
  width: 34px; height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  transition: background 0.3s, color 0.3s, transform 0.2s;
  flex-shrink: 0;
}
#theme-toggle:hover { transform: scale(1.1); }

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 120px 20px 80px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 30%, rgba(0,0,0,0.04) 0%, transparent 70%);
  pointer-events: none;
}
[data-theme="dark"] .hero-bg {
  background: radial-gradient(ellipse 80% 60% at 50% 30%, rgba(255,255,255,0.03) 0%, transparent 70%);
}
.hero-content {
  display: flex; flex-direction: column; align-items: center; gap: 20px;
  animation: fadeUp 0.9s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
.badge {
  display: inline-block;
  background: var(--badge-bg);
  color: var(--badge-text);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 6px 16px;
  border-radius: 999px;
  animation: fadeUp 0.9s 0.1s ease both;
}
#hero h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  animation: fadeUp 0.9s 0.2s ease both;
}
#hero h1 .accent {
  -webkit-text-stroke: 2px var(--text);
  color: transparent;
}
[data-theme="dark"] #hero h1 .accent {
  -webkit-text-stroke: 2px #ffffff;
}
.subtitle {
  color: var(--text2);
  font-size: 1rem;
  font-weight: 300;
  animation: fadeUp 0.9s 0.3s ease both;
}
.hero-tags {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center;
  animation: fadeUp 0.9s 0.4s ease both;
}
.hero-tags span {
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--border);
  transition: background 0.4s, color 0.4s;
}
.btn-hero {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--text);
  color: var(--bg);
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s;
  animation: fadeUp 0.9s 0.5s ease both;
}
.btn-hero:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.2); }
[data-theme="dark"] .btn-hero:hover { box-shadow: 0 12px 30px rgba(255,255,255,0.1); }

.scroll-indicator {
  position: absolute; bottom: 40px;
  display: flex; flex-direction: column; align-items: center;
  animation: fadeUp 0.9s 0.7s ease both;
}
.scroll-indicator span {
  width: 1.5px; height: 60px;
  background: linear-gradient(to bottom, var(--text), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { opacity: 0.2; transform: scaleY(0.5) translateY(0); }
  50% { opacity: 1; transform: scaleY(1) translateY(10px); }
}

/* ===== SECCIONES ===== */
section {
  max-width: 860px;
  margin: 0 auto 60px;
  padding: 50px 40px;
  background: var(--card-bg);
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
  transition: background 0.4s, border-color 0.4s, box-shadow 0.4s;
}

/* REVEAL ANIMATION */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 12px;
}
section h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
section p { color: var(--text2); font-size: 1rem; }

/* WAVE */
.wave { display: inline-block; animation: wave 2s ease-in-out infinite; }
@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(20deg); }
  75% { transform: rotate(-10deg); }
}

/* ===== ABOUT STATS ===== */
.about-stats {
  display: flex; gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--stat-line);
  border-bottom: 1px solid var(--stat-line);
  padding: 20px 0;
}
.stat {
  flex: 1; text-align: center;
  border-right: 1px solid var(--stat-line);
}
.stat:last-child { border-right: none; }
.stat-num {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 24px;
}
.skill-item {
  display: flex; flex-direction: column; gap: 10px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg);
  transition: background 0.4s, border-color 0.4s, transform 0.2s;
}
.skill-item:hover { transform: translateY(-3px); }
.skill-item i {
  font-size: 1.6rem;
  color: var(--text);
}
.skill-item span {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
}
.skill-bar {
  height: 4px;
  background: var(--skill-bg);
  border-radius: 999px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  width: 0;
  background: var(--skill-fill);
  border-radius: 999px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.skill-fill.animate { width: var(--w); }

/* ===== PROYECTOS ===== */
#proyectos h2 { margin-bottom: 24px; }
.projects-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.project-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 24px;
  display: flex; flex-direction: column; gap: 12px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}
.project-card.visible { opacity: 1; transform: translateY(0); }
.project-card:hover {
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
  border-color: var(--text2);
}
[data-theme="dark"] .project-card:hover {
  box-shadow: 0 20px 40px rgba(255,255,255,0.05);
}
.card-num {
  font-family: 'Syne', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text2);
}
.card-icon {
  font-size: 1.8rem;
  color: var(--text);
}
.project-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.project-card p { font-size: 0.9rem; color: var(--text2); flex: 1; }
.project-card .tech {
  font-size: 0.8rem !important;
  color: var(--tech-color) !important;
  display: flex; align-items: center; gap: 6px;
}

/* ===== BOTONES ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  background: var(--btn-bg);
  color: var(--btn-text);
  text-decoration: none;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s, background 0.4s, color 0.4s;
  width: fit-content;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); }
.btn.secondary {
  background: transparent;
  color: var(--btn-sec-text);
  border: 1.5px solid var(--btn-sec-border);
  box-shadow: none;
}
.btn.secondary:hover { background: var(--border); }

/* ===== DISCORD BUTTON ===== */
.discord-btn {
  background: #5865F2;
  color: #ffffff;
  border: none;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: inherit;
}
.discord-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(88,101,242,0.4); }

/* ===== TOAST ===== */
.toast {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 10px 20px;
  background: #22c55e;
  color: #ffffff;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ===== CONTACTO ===== */
#contacto p { margin-bottom: 24px; }
.contact-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== YOUTUBE ===== */
.yt-section {
  background: var(--yt-bg) !important;
  border-color: transparent !important;
  text-align: center;
  padding: 60px 40px !important;
}
.yt-inner { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.yt-icon {
  font-size: 3.5rem;
  color: #ff0000;
  filter: drop-shadow(0 0 20px rgba(255,0,0,0.4));
}
.yt-section h2 { color: var(--yt-text) !important; margin-bottom: 0; }
.yt-section p { color: rgba(255,255,255,0.6) !important; max-width: 400px; }
.btn-yt {
  display: inline-flex; align-items: center; gap: 10px;
  background: #ff0000;
  color: #ffffff;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s;
  margin-top: 8px;
}
.btn-yt:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(255,0,0,0.4); }

/* ===== SECCIÓN EXTRA 3D ===== */
.extra-section p { margin-bottom: 28px; }

.spline-wrapper {
  position: relative;
  width: 100%;
  height: 420px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg);
}
.spline-wrapper spline-viewer {
  width: 100%;
  height: 100%;
}
.spline-hint {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 0.78rem;
  padding: 6px 16px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  display: flex; align-items: center; gap: 8px;
  pointer-events: none;
  animation: fadeHint 3s ease 1.5s both;
}
@keyframes fadeHint {
  0% { opacity: 0; transform: translateX(-50%) translateY(6px); }
  20% { opacity: 1; transform: translateX(-50%) translateY(0); }
  80% { opacity: 1; }
  100% { opacity: 0; }
}

.extra-tags {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 24px;
}
.extra-tags span {
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--border);
  transition: background 0.4s, color 0.4s;
}

.spline-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 12px;
  color: var(--text2);
  font-size: 0.9rem;
}
.spline-placeholder i { font-size: 2rem; opacity: 0.4; }

/* ===== FOOTER ===== */
footer {
  background: var(--footer-bg);
  text-align: center;
  padding: 24px;
  font-size: 0.85rem;
  color: var(--text2);
  transition: background 0.4s, color 0.4s;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .topnav { padding: 6px 10px; gap: 2px; }
  .topnav a { padding: 6px 10px; font-size: 0.8rem; }
  section { padding: 32px 24px; margin: 0 16px 40px; }
  .about-stats { gap: 0; }
  .contact-btns { flex-direction: column; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .projects-container { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .topnav a:not(:first-child) { display: none; }
  .skills-grid { grid-template-columns: 1fr; }
}

.spline-reveal-container { position: relative; width: 100%; }

.spline-blur-overlay {
  position: relative;
  width: 100%;
  height: 420px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.spline-blur-inner {
  position: absolute;
  inset: 0;
  background: url('https://prod.spline.design/eKzfteJzDmvuy2XU/scene.splinecode') center/cover;
  filter: blur(18px) brightness(0.6);
  transform: scale(1.05);
}

.btn-reveal-spline {
  position: relative;
  z-index: 2;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(10px);
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'DM Sans', sans-serif;
  transition: transform 0.2s, background 0.2s;
}
.btn-reveal-spline:hover { transform: scale(1.05); background: rgba(255,255,255,0.25); }

.btn-hide-spline {
  margin-top: 12px;
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text2);
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Sans', sans-serif;
  transition: background 0.2s;
}
.btn-hide-spline:hover { background: var(--border); }