/* ============================================
   YGGDRASIL / VIKING BACKGROUND - ENHANCED
   Nordic Aurora + World Tree + Stars + Runes
   Style inspiré de asdfasdfa.tech

   Shared across: learn, tools, build, play, games, faq/glossary
   ============================================ */

@import url('./design-tokens.css');

/* Ensure body has proper setup for the background */
html {
  background: #020812 !important;
}

body {
  position: relative;
  min-height: 100vh;
  background: transparent !important;
}

/* Stars layer - fond étoilé visible */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -3;
  background-image:
        /* Étoiles brillantes - plus nombreuses */
    radial-gradient(2px 2px at 20px 30px, rgba(255, 255, 255, 0.95), transparent),
    radial-gradient(2px 2px at 40px 70px, rgba(255, 255, 255, 0.85), transparent),
    radial-gradient(3px 3px at 50px 160px, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(2px 2px at 90px 40px, rgba(255, 255, 255, 0.95), transparent),
    radial-gradient(2px 2px at 130px 80px, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(2px 2px at 160px 120px, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(3px 3px at 200px 50px, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(2px 2px at 220px 140px, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(2px 2px at 260px 90px, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(2px 2px at 300px 180px, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(3px 3px at 340px 60px, rgba(255, 255, 255, 0.95), transparent),
    radial-gradient(2px 2px at 380px 130px, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(2px 2px at 420px 100px, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(2px 2px at 460px 170px, rgba(255, 255, 255, 0.85), transparent),
    radial-gradient(3px 3px at 500px 45px, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(2px 2px at 540px 200px, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(2px 2px at 580px 80px, rgba(255, 255, 255, 0.95), transparent),
    radial-gradient(2px 2px at 620px 150px, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(3px 3px at 660px 30px, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(2px 2px at 700px 110px, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(2px 2px at 750px 190px, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(3px 3px at 800px 70px, rgba(255, 255, 255, 0.85), transparent);
  background-size: 820px 220px;
  background-repeat: repeat;
  animation: starsTwinkle 4s ease-in-out infinite alternate;
}

@keyframes starsTwinkle {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Aurora + Nebula layer - TRÈS VISIBLE */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -2;
  background:
        /* Aurora verte principale - intense */
    radial-gradient(
      ellipse 180% 80% at 10% -20%,
      rgba(34, 197, 94, 0.5) 0%,
      rgba(34, 197, 94, 0.2) 30%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 150% 70% at 90% -10%,
      rgba(74, 222, 128, 0.45) 0%,
      rgba(74, 222, 128, 0.15) 35%,
      transparent 55%
    ),
    /* Aurora bleue/cyan - intense */
    radial-gradient(
        ellipse 140% 60% at 50% -15%,
        rgba(34, 211, 238, 0.4) 0%,
        rgba(34, 211, 238, 0.12) 40%,
        transparent 60%
      ),
    radial-gradient(
      ellipse 160% 55% at 75% 0%,
      rgba(59, 130, 246, 0.35) 0%,
      rgba(59, 130, 246, 0.1) 40%,
      transparent 55%
    ),
    /* Aurora violette - mystique */
    radial-gradient(
        ellipse 120% 50% at 20% 10%,
        rgba(168, 85, 247, 0.4) 0%,
        rgba(139, 92, 246, 0.15) 35%,
        transparent 55%
      ),
    radial-gradient(
      ellipse 100% 45% at 85% 15%,
      rgba(192, 132, 252, 0.35) 0%,
      rgba(167, 139, 250, 0.1) 40%,
      transparent 50%
    ),
    /* Nebula effects en profondeur */
    radial-gradient(ellipse 80% 50% at 25% 60%, rgba(34, 197, 94, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse 70% 45% at 80% 50%, rgba(168, 85, 247, 0.1) 0%, transparent 45%),
    radial-gradient(ellipse 90% 40% at 50% 80%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
    /* Base gradient - Nordic night */
    linear-gradient(
        180deg,
        rgba(2, 8, 18, 1) 0%,
        rgba(5, 10, 20, 1) 30%,
        rgba(8, 10, 15, 1) 60%,
        rgba(10, 10, 15, 1) 100%
      );
  animation: auroraPulse 8s ease-in-out infinite alternate;
}

@keyframes auroraPulse {
  0% {
    filter: hue-rotate(0deg) brightness(1);
  }
  33% {
    filter: hue-rotate(-10deg) brightness(1.15);
  }
  66% {
    filter: hue-rotate(8deg) brightness(0.95);
  }
  100% {
    filter: hue-rotate(5deg) brightness(1.1);
  }
}

/* Yggdrasil container avec effets */
.yggdrasil-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

/* Main Yggdrasil tree - ENHANCED with more branches */
.yggdrasil-bg::before {
  content: '';
  position: absolute;
  bottom: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 160%;
  height: 120%;
  opacity: 0.22;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 1000'%3E%3Cdefs%3E%3ClinearGradient id='treeGrad' x1='0%25' y1='100%25' x2='0%25' y2='0%25'%3E%3Cstop offset='0%25' stop-color='%2322c55e'/%3E%3Cstop offset='30%25' stop-color='%234ade80'/%3E%3Cstop offset='60%25' stop-color='%2322d3ee'/%3E%3Cstop offset='100%25' stop-color='%23a855f7'/%3E%3C/linearGradient%3E%3ClinearGradient id='leafGrad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' stop-color='%234ade80'/%3E%3Cstop offset='100%25' stop-color='%2322c55e'/%3E%3C/linearGradient%3E%3Cfilter id='glow'%3E%3CfeGaussianBlur stdDeviation='3' result='coloredBlur'/%3E%3CfeMerge%3E%3CfeMergeNode in='coloredBlur'/%3E%3CfeMergeNode in='SourceGraphic'/%3E%3C/feMerge%3E%3C/filter%3E%3Cfilter id='glowStrong'%3E%3CfeGaussianBlur stdDeviation='6' result='coloredBlur'/%3E%3CfeMerge%3E%3CfeMergeNode in='coloredBlur'/%3E%3CfeMergeNode in='SourceGraphic'/%3E%3C/feMerge%3E%3C/filter%3E%3C/defs%3E%3Cg fill='none' stroke='url(%23treeGrad)' stroke-linecap='round' filter='url(%23glow)'%3E%3C!-- Main trunk - thicker --%3E%3Cpath d='M600 1000 L600 550 Q600 480 570 400 Q540 320 600 240 Q660 160 600 80 Q570 30 600 0' stroke-width='8'/%3E%3Cpath d='M600 1000 L600 550' stroke-width='12' opacity='0.5'/%3E%3C!-- LEFT BRANCHES - Level 1 (bottom) --%3E%3Cpath d='M600 850 Q480 800 360 860 Q240 920 100 850' stroke-width='5'/%3E%3Cpath d='M360 860 Q300 820 220 850 Q140 880 60 830' stroke-width='3'/%3E%3Cpath d='M360 860 Q320 900 260 920' stroke-width='2'/%3E%3C!-- LEFT BRANCHES - Level 2 --%3E%3Cpath d='M600 720 Q460 660 320 720 Q180 780 40 700' stroke-width='4.5'/%3E%3Cpath d='M320 720 Q260 680 180 710 Q100 740 20 680' stroke-width='3'/%3E%3Cpath d='M460 690 Q400 650 340 680' stroke-width='2'/%3E%3Cpath d='M320 720 Q280 760 220 780' stroke-width='2'/%3E%3C!-- LEFT BRANCHES - Level 3 --%3E%3Cpath d='M600 590 Q440 520 280 590 Q120 660 -40 560' stroke-width='4'/%3E%3Cpath d='M440 555 Q380 510 300 550 Q220 590 140 530' stroke-width='2.5'/%3E%3Cpath d='M280 590 Q220 550 160 580 Q100 610 40 560' stroke-width='2'/%3E%3Cpath d='M280 590 Q240 630 180 650' stroke-width='1.5'/%3E%3C!-- LEFT BRANCHES - Level 4 --%3E%3Cpath d='M585 460 Q460 380 320 450 Q160 520 0 420' stroke-width='3.5'/%3E%3Cpath d='M460 415 Q400 370 320 410 Q240 450 160 390' stroke-width='2.5'/%3E%3Cpath d='M320 450 Q260 420 200 450 Q140 480 80 430' stroke-width='2'/%3E%3C!-- LEFT BRANCHES - Level 5 --%3E%3Cpath d='M590 340 Q480 260 360 330 Q220 400 60 300' stroke-width='3'/%3E%3Cpath d='M480 295 Q420 250 350 290 Q280 330 200 270' stroke-width='2'/%3E%3Cpath d='M360 330 Q300 300 240 330 Q180 360 120 310' stroke-width='1.5'/%3E%3C!-- LEFT BRANCHES - Level 6 (top) --%3E%3Cpath d='M595 220 Q500 150 400 210 Q280 280 140 190' stroke-width='2.5'/%3E%3Cpath d='M500 185 Q450 140 380 180 Q310 220 240 160' stroke-width='1.5'/%3E%3Cpath d='M400 210 Q350 180 300 210 Q250 240 200 190' stroke-width='1'/%3E%3C!-- LEFT BRANCHES - Level 7 --%3E%3Cpath d='M597 120 Q520 60 440 110 Q340 170 220 100' stroke-width='2'/%3E%3Cpath d='M440 110 Q390 80 340 110' stroke-width='1'/%3E%3C!-- RIGHT BRANCHES - Level 1 (bottom) --%3E%3Cpath d='M600 850 Q720 800 840 860 Q960 920 1100 850' stroke-width='5'/%3E%3Cpath d='M840 860 Q900 820 980 850 Q1060 880 1140 830' stroke-width='3'/%3E%3Cpath d='M840 860 Q880 900 940 920' stroke-width='2'/%3E%3C!-- RIGHT BRANCHES - Level 2 --%3E%3Cpath d='M600 720 Q740 660 880 720 Q1020 780 1160 700' stroke-width='4.5'/%3E%3Cpath d='M880 720 Q940 680 1020 710 Q1100 740 1180 680' stroke-width='3'/%3E%3Cpath d='M740 690 Q800 650 860 680' stroke-width='2'/%3E%3Cpath d='M880 720 Q920 760 980 780' stroke-width='2'/%3E%3C!-- RIGHT BRANCHES - Level 3 --%3E%3Cpath d='M600 590 Q760 520 920 590 Q1080 660 1240 560' stroke-width='4'/%3E%3Cpath d='M760 555 Q820 510 900 550 Q980 590 1060 530' stroke-width='2.5'/%3E%3Cpath d='M920 590 Q980 550 1040 580 Q1100 610 1160 560' stroke-width='2'/%3E%3Cpath d='M920 590 Q960 630 1020 650' stroke-width='1.5'/%3E%3C!-- RIGHT BRANCHES - Level 4 --%3E%3Cpath d='M615 460 Q740 380 880 450 Q1040 520 1200 420' stroke-width='3.5'/%3E%3Cpath d='M740 415 Q800 370 880 410 Q960 450 1040 390' stroke-width='2.5'/%3E%3Cpath d='M880 450 Q940 420 1000 450 Q1060 480 1120 430' stroke-width='2'/%3E%3C!-- RIGHT BRANCHES - Level 5 --%3E%3Cpath d='M610 340 Q720 260 840 330 Q980 400 1140 300' stroke-width='3'/%3E%3Cpath d='M720 295 Q780 250 850 290 Q920 330 1000 270' stroke-width='2'/%3E%3Cpath d='M840 330 Q900 300 960 330 Q1020 360 1080 310' stroke-width='1.5'/%3E%3C!-- RIGHT BRANCHES - Level 6 (top) --%3E%3Cpath d='M605 220 Q700 150 800 210 Q920 280 1060 190' stroke-width='2.5'/%3E%3Cpath d='M700 185 Q750 140 820 180 Q890 220 960 160' stroke-width='1.5'/%3E%3Cpath d='M800 210 Q850 180 900 210 Q950 240 1000 190' stroke-width='1'/%3E%3C!-- RIGHT BRANCHES - Level 7 --%3E%3Cpath d='M603 120 Q680 60 760 110 Q860 170 980 100' stroke-width='2'/%3E%3Cpath d='M760 110 Q810 80 860 110' stroke-width='1'/%3E%3C!-- ROOTS - Enhanced --%3E%3Cpath d='M600 1000 Q480 960 360 1010 Q240 1060 80 980' stroke-width='6'/%3E%3Cpath d='M600 1000 Q720 960 840 1010 Q960 1060 1120 980' stroke-width='6'/%3E%3Cpath d='M600 1000 Q540 1040 460 1080' stroke-width='4'/%3E%3Cpath d='M600 1000 Q660 1040 740 1080' stroke-width='4'/%3E%3Cpath d='M600 1000 Q500 1020 400 1000 Q300 980 200 1020' stroke-width='3'/%3E%3Cpath d='M600 1000 Q700 1020 800 1000 Q900 980 1000 1020' stroke-width='3'/%3E%3Cpath d='M360 1010 Q300 1050 220 1040' stroke-width='2'/%3E%3Cpath d='M840 1010 Q900 1050 980 1040' stroke-width='2'/%3E%3C!-- Nine Worlds markers (glowing orbs) --%3E%3Ccircle cx='280' cy='590' r='12' fill='%234ade80' opacity='0.9' filter='url(%23glowStrong)'/%3E%3Ccircle cx='920' cy='590' r='12' fill='%234ade80' opacity='0.9' filter='url(%23glowStrong)'/%3E%3Ccircle cx='320' cy='450' r='10' fill='%2322d3ee' opacity='0.8' filter='url(%23glowStrong)'/%3E%3Ccircle cx='880' cy='450' r='10' fill='%2322d3ee' opacity='0.8' filter='url(%23glowStrong)'/%3E%3Ccircle cx='360' cy='330' r='8' fill='%23a855f7' opacity='0.7' filter='url(%23glowStrong)'/%3E%3Ccircle cx='840' cy='330' r='8' fill='%23a855f7' opacity='0.7' filter='url(%23glowStrong)'/%3E%3Ccircle cx='400' cy='210' r='6' fill='%23ec4899' opacity='0.6' filter='url(%23glowStrong)'/%3E%3Ccircle cx='800' cy='210' r='6' fill='%23ec4899' opacity='0.6' filter='url(%23glowStrong)'/%3E%3Ccircle cx='600' cy='80' r='14' fill='%23fbbf24' opacity='1' filter='url(%23glowStrong)'/%3E%3C!-- Additional energy lines --%3E%3Cpath d='M280 590 Q600 500 920 590' stroke='%234ade80' stroke-width='1' opacity='0.4' stroke-dasharray='10,5'/%3E%3Cpath d='M320 450 Q600 380 880 450' stroke='%2322d3ee' stroke-width='1' opacity='0.3' stroke-dasharray='8,4'/%3E%3Cpath d='M360 330 Q600 280 840 330' stroke='%23a855f7' stroke-width='1' opacity='0.3' stroke-dasharray='6,3'/%3E%3C/g%3E%3C/svg%3E");
  background-size: contain;
  background-position: center bottom;
  background-repeat: no-repeat;
  animation: treeGlow 5s ease-in-out infinite alternate;
}

@keyframes treeGlow {
  0%,
  100% {
    opacity: 0.18;
    filter: brightness(1) drop-shadow(0 0 30px rgba(74, 222, 128, 0.4));
  }
  50% {
    opacity: 0.28;
    filter: brightness(1.3) drop-shadow(0 0 60px rgba(74, 222, 128, 0.6));
  }
}

/* Floating runes - ligne 1 */
.yggdrasil-bg::after {
  content: 'ᚠ ᚢ ᚦ ᚨ ᚱ ᚲ ᚷ ᚹ ᚺ ᚾ ᛁ ᛃ ᛈ ᛇ ᛉ ᛊ ᛏ ᛒ ᛖ ᛗ ᛚ ᛜ ᛞ ᛟ   ᚠ ᚢ ᚦ ᚨ ᚱ ᚲ ᚷ ᚹ ᚺ ᚾ';
  position: absolute;
  top: 10%;
  left: -100%;
  width: 300%;
  font-size: 28px;
  letter-spacing: 40px;
  color: rgba(74, 222, 128, 0.3);
  white-space: nowrap;
  animation: runesScroll1 60s linear infinite;
  text-shadow:
    0 0 20px rgba(74, 222, 128, 0.6),
    0 0 40px rgba(74, 222, 128, 0.4);
}

@keyframes runesScroll1 {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(33.33%);
  }
}

/* Nordic mist at bottom */
.nordic-mist {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50%;
  pointer-events: none;
  z-index: -1;
  background: linear-gradient(
    to top,
    rgba(34, 197, 94, 0.12) 0%,
    rgba(34, 211, 238, 0.08) 20%,
    rgba(168, 85, 247, 0.05) 40%,
    transparent 100%
  );
  animation: mistFlow 12s ease-in-out infinite alternate;
}

/* Runes ligne 2 - direction opposée */
.nordic-mist::before {
  content: 'ᛁ ᛃ ᛈ ᛇ ᛉ ᛊ ᛏ ᛒ ᛖ ᛗ ᛚ ᛜ ᛞ ᛟ ᚠ ᚢ ᚦ ᚨ ᚱ ᚲ ᚷ ᚹ ᚺ ᚾ   ᛁ ᛃ ᛈ ᛇ ᛉ ᛊ';
  position: fixed;
  top: 40%;
  right: -100%;
  width: 300%;
  font-size: 24px;
  letter-spacing: 50px;
  color: rgba(168, 85, 247, 0.25);
  white-space: nowrap;
  animation: runesScroll2 70s linear infinite;
  text-shadow:
    0 0 20px rgba(168, 85, 247, 0.5),
    0 0 40px rgba(168, 85, 247, 0.3);
}

@keyframes runesScroll2 {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-33.33%);
  }
}

/* Viking phrases - THIS IS FINE */
.nordic-mist::after {
  content: '⚔ THIS IS FINE ⚔   ᛟᛞᛁᚾ   VALHALLA AWAITS   ᚦᛟᚱ   BURN TO EARN   ᚠᚱᛖᛃᚨ   HODL STRONG   ᛚᛟᚲᛁ   ⚔ THIS IS FINE ⚔';
  position: fixed;
  top: 70%;
  left: -50%;
  width: 200%;
  font-size: 18px;
  font-family: 'Comic Neue', cursive;
  letter-spacing: 30px;
  color: rgba(251, 191, 36, 0.2);
  white-space: nowrap;
  animation: phrasesScroll 90s linear infinite;
  text-shadow:
    0 0 15px rgba(251, 191, 36, 0.4),
    0 0 30px rgba(251, 191, 36, 0.2);
}

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

@keyframes mistFlow {
  0% {
    opacity: 0.9;
    transform: translateY(0) scaleY(1);
  }
  100% {
    opacity: 0.6;
    transform: translateY(-40px) scaleY(1.15);
  }
}

/* Spirit orbs flottants */
.viking-spirits {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.viking-spirits::before {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(74, 222, 128, 0.6) 0%,
    rgba(74, 222, 128, 0.25) 40%,
    transparent 70%
  );
  filter: blur(35px);
  top: 12%;
  left: 5%;
  animation: spiritFloat 15s ease-in-out infinite;
}

.viking-spirits::after {
  content: '';
  position: absolute;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(168, 85, 247, 0.55) 0%,
    rgba(168, 85, 247, 0.2) 40%,
    transparent 70%
  );
  filter: blur(30px);
  top: 30%;
  right: 8%;
  animation: spiritFloat 20s ease-in-out infinite reverse;
}

@keyframes spiritFloat {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.8;
  }
  25% {
    transform: translate(80px, -50px) scale(1.3);
    opacity: 1;
  }
  50% {
    transform: translate(40px, 60px) scale(0.85);
    opacity: 0.6;
  }
  75% {
    transform: translate(-50px, 30px) scale(1.15);
    opacity: 0.9;
  }
}

/* Third spirit - cyan */
.viking-spirits .spirit-cyan {
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(34, 211, 238, 0.5) 0%,
    rgba(34, 211, 238, 0.18) 40%,
    transparent 70%
  );
  filter: blur(25px);
  bottom: 20%;
  left: 20%;
  animation: spiritFloat 18s ease-in-out infinite;
  animation-delay: -5s;
}

/* Fourth spirit - gold (Odin's eye) */
.viking-spirits .spirit-gold {
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(251, 191, 36, 0.5) 0%,
    rgba(251, 191, 36, 0.15) 40%,
    transparent 70%
  );
  filter: blur(20px);
  top: 50%;
  right: 25%;
  animation: spiritFloat 22s ease-in-out infinite;
  animation-delay: -10s;
}

/* Fifth spirit - pink */
.viking-spirits .spirit-pink {
  position: absolute;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(236, 72, 153, 0.45) 0%,
    rgba(236, 72, 153, 0.12) 40%,
    transparent 70%
  );
  filter: blur(18px);
  bottom: 40%;
  right: 15%;
  animation: spiritFloat 25s ease-in-out infinite reverse;
  animation-delay: -15s;
}

/* Viking symbols floating */
.viking-symbols {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

/* Valknut symbol (three interlocked triangles) */
.viking-symbols::before {
  content: '⛰ ☰ ⚡ ⛵ ⚔ 🛡 ⚒ ☠ ⛰ ☰ ⚡ ⛵ ⚔ 🛡 ⚒ ☠';
  position: absolute;
  top: 25%;
  left: -30%;
  width: 160%;
  font-size: 36px;
  letter-spacing: 100px;
  color: rgba(74, 222, 128, 0.12);
  white-space: nowrap;
  animation: symbolsFloat 100s linear infinite;
  filter: blur(1px);
}

.viking-symbols::after {
  content: '◇ ◆ △ ▽ ○ ● ◇ ◆ △ ▽ ○ ● ◇ ◆ △ ▽';
  position: absolute;
  top: 55%;
  right: -30%;
  width: 160%;
  font-size: 28px;
  letter-spacing: 80px;
  color: rgba(34, 211, 238, 0.1);
  white-space: nowrap;
  animation: symbolsFloat 120s linear infinite reverse;
  filter: blur(1px);
}

@keyframes symbolsFloat {
  0% {
    transform: translateX(0) translateY(0);
  }
  50% {
    transform: translateX(10%) translateY(20px);
  }
  100% {
    transform: translateX(20%) translateY(0);
  }
}