/* =====================
   Eco-Space Portfolio Main Stylesheet
   Author: Kamwanga Raheem
   Global styles, resets, and shared components
====================== */

/* ====== Global Styles & Resets ====== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  padding-top: 100px;
  background: 
    /* Soft stellar atmosphere with neutral tones */ radial-gradient(
      ellipse at 10% 20%,
      rgba(255, 255, 255, 0.08) 0%,
      transparent 45%
    ),
    radial-gradient(
      ellipse at 90% 80%,
      rgba(255, 255, 255, 0.06) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 50% 50%,
      rgba(16, 24, 32, 0.8) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse at 20% 70%,
      rgba(255, 255, 255, 0.04) 0%,
      transparent 40%
    ),
    radial-gradient(
      ellipse at 80% 30%,
      rgba(255, 255, 255, 0.05) 0%,
      transparent 35%
    ),
    /* Enhanced stellar base gradient with neutral tones */
      linear-gradient(
        140deg,
        #0a1420 0%,
        #0e1922 15%,
        #121f26 30%,
        #16242a 45%,
        #1a2a2e 60%,
        #1e3032 75%,
        #223336 90%,
        #0c1a22 100%
      );
  color: #e0f2e9;
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

/* Global Stellar Atmosphere Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    /* Floating soft white stellar particles */ radial-gradient(
      1px 1px at 10% 20%,
      rgba(255, 255, 255, 0.15),
      transparent
    ),
    radial-gradient(1px 1px at 25% 45%, rgba(255, 255, 255, 0.12), transparent),
    radial-gradient(1px 1px at 40% 15%, rgba(255, 255, 255, 0.18), transparent),
    radial-gradient(1px 1px at 55% 65%, rgba(255, 255, 255, 0.14), transparent),
    radial-gradient(1px 1px at 70% 35%, rgba(255, 255, 255, 0.16), transparent),
    radial-gradient(1px 1px at 85% 80%, rgba(255, 255, 255, 0.13), transparent),
    radial-gradient(1px 1px at 15% 75%, rgba(255, 255, 255, 0.17), transparent),
    radial-gradient(1px 1px at 90% 25%, rgba(255, 255, 255, 0.12), transparent);
  background-size: 800px 600px, 900px 700px, 750px 550px, 850px 650px,
    700px 500px, 950px 750px, 650px 450px, 1000px 800px;
  background-repeat: repeat;
  animation: gentleGlobalDrift 500s linear infinite;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

@keyframes gentleGlobalDrift {
  0% {
    transform: translateX(0) translateY(0);
  }
  100% {
    transform: translateX(-80px) translateY(-150px);
  }
}

/* Enhanced Professional Background Effects */
body::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      ellipse at 30% 40%,
      rgba(255, 255, 255, 0.02) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 70% 60%,
      rgba(255, 255, 255, 0.015) 0%,
      transparent 50%
    );
  animation: softAtmosphereShift 35s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

@keyframes softAtmosphereShift {
  0% {
    opacity: 0.4;
    transform: scale(1);
  }
  100% {
    opacity: 0.7;
    transform: scale(1.05);
  }
}

/* ====== Enhanced Section Transitions ====== */
section {
  position: relative;
  z-index: 2;
  background: rgba(8, 14, 20, 0.15);
  backdrop-filter: blur(1px);
}

section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.01) 0%,
    transparent 20%,
    transparent 80%,
    rgba(255, 255, 255, 0.01) 100%
  );
  pointer-events: none;
  z-index: -1;
}

/* Professional Scroll Indicator */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, #ffffff, #e0e0e0);
  z-index: 1000;
  transition: width 0.1s ease;
}

/* Enhanced Container Styling */
.container {
  position: relative;
  z-index: 2;
}

/* Professional Content Sections */
.content-section {
  backdrop-filter: blur(2px);
  border-radius: 20px;
  padding: 3rem 2rem;
  margin: 2rem 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(8, 14, 20, 0.3);
}

/* ====== Shared Section Styling ====== */
.section-title {
  color: #7fffa6;
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  text-shadow: 0 0 20px rgba(127, 255, 166, 0.3);
}

.section-subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.2rem;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 300;
}

/* ====== Advanced Background Effects ====== */
@keyframes nebulaDrift {
  0% {
    transform: translateX(0) translateY(0);
  }
  100% {
    transform: translateX(-200px) translateY(-100px);
  }
}