/* ===================================================
   GLOBAL & THEME SETTINGS
=================================================== */

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap");

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

body {
  font-family: "Poppins", sans-serif;
  background: #0f111a;
  color: #a3b3cc;
  line-height: 1.6;
  overflow-x: hidden;
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #0f111a;
}
::-webkit-scrollbar-thumb {
  background: #2c98f0;
  border-radius: 4px;
}

header {
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  background: rgba(12, 14, 25, 0.85);
  backdrop-filter: blur(8px);
  box-shadow: 0 0 10px #1a73e8aa;
  z-index: 999;
}

nav {
  max-width: 1100px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.logo {
  font-weight: 700;
  font-size: 1.8rem;
  color: #2c98f0;
  letter-spacing: 2px;
  cursor: default;
}

.loader {
  width: 100%;
  max-width: 500px;
  height: 400px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(27, 31, 51, 0.6);
  border-radius: 12px;
  box-shadow: 0 0 25px #1a73e8aa;
  margin-top: 30px;
}

#loading-text {
  font-size: 1.2rem;
  font-weight: 600;
  color: #66d9e8;
  letter-spacing: 1px;
}

.loader-ring {
  position: relative;
  width: 120px;
  height: 120px;
}

#brain-model {
  opacity: 0;
  transition: opacity 1s ease;
}
#brain-model.visible {
  opacity: 1;
}

.progress-ring-bg,
.progress-ring-circle {
  fill: none;
  stroke-linecap: round;
}

.progress-ring-bg {
  stroke: #1b2e4f;
}

.progress-ring-circle {
  stroke: #2c98f0;
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
  transition: stroke-dashoffset 0.2s linear;
  filter: drop-shadow(0 0 8px #2c98f0);
}

.loader-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.2rem;
  font-weight: 700;
  color: #66d9e8;
  letter-spacing: 1px;
}

/* ========================
   Interaction Hint (right side of model)
   ======================== */
/* ========================
   Drag-to-Explore Hint Styling
   ======================== */
.interaction-hint {
  position: relative;
  top: -360px; /* align with model */
  left: calc(100% - 160px);
  display: flex;
  align-items: center;
  gap: 8px;
  color: #66d9e8;
  font-weight: 600;
  font-size: 1rem;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

.hint-icon {
  width: 28px;
  height: 28px;
  border: 2px solid #2c98f0;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.9rem;
  box-shadow: 0 0 12px #2c98f0;
  animation: pulseGlowHint 2s infinite ease-in-out;
}

@keyframes pulseGlowHint {
  0%,
  100% {
    box-shadow: 0 0 10px #2c98f0;
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 18px #66d9e8;
    transform: scale(1.1);
  }
}

@keyframes fadeInHint {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOutHint {
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

ul.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

ul.nav-links li a {
  text-decoration: none;
  color: #a3b3cc;
  font-weight: 600;
  transition: color 0.3s ease;
  position: relative;
}

ul.nav-links li a::after {
  content: "";
  position: absolute;
  width: 0%;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: #2c98f0;
  transition: width 0.3s ease;
}

ul.nav-links li a:hover,
ul.nav-links li a:focus {
  color: #2c98f0;
}

ul.nav-links li a:hover::after,
ul.nav-links li a:focus::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  font-size: 1.8rem;
  color: #2c98f0;
  cursor: pointer;
}

section {
  max-width: 900px;
  margin: 100px auto 60px auto;
  padding: 2rem;
  border-radius: 12px;
  background: #1b1f33;
  box-shadow: 0 0 25px #1a73e8aa;
  opacity: 0;
  transform: translateY(40px);
  animation: fadeInUp 1s forwards;
}

section:nth-of-type(1) {
  animation-delay: 0.15s;
}
section:nth-of-type(2) {
  animation-delay: 0.35s;
}
section:nth-of-type(3) {
  animation-delay: 0.55s;
}
section:nth-of-type(4) {
  animation-delay: 0.75s;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

h1,
h2 {
  color: #2c98f0;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 1.5px;
}

h1 {
  font-size: 3rem;
}
h2 {
  font-size: 2rem;
  /*border-bottom: 3px solid #2c98f0;*/
  padding-bottom: 0.3rem;
  width: fit-content;
}

.intro p {
  font-size: 1.3rem;
  color: #a3b3cc;
  font-weight: 500;
  max-width: 650px;
}

/* === Hero Section Styling === */
.intro {
  text-align: center;
  padding: 2rem 1rem;
}

.intro h1 {
  font-size: 3.2rem;
  font-weight: 700;
  color: #4ea3ff;
  text-shadow: 0 0 10px rgba(44, 152, 240, 0.6),
    0 0 20px rgba(102, 217, 232, 0.3);
  margin-bottom: 0.8rem;
}

.intro .highlight {
  color: #2c98f0;
}

.intro .degree {
  font-size: 1.2rem;
  font-weight: 500;
  color: #a9bbd8;
  letter-spacing: 0.3px;
  margin-bottom: 0.8rem;
}

.intro .divider {
  color: #2c98f0;
  margin: 0 6px;
}

.intro .tagline {
  font-size: 1.05rem;
  color: #c5d3ea;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* === Hero Section Styling === */
.intro {
  text-align: center;
  padding: 2rem 1rem;
}

.intro h1 {
  font-size: 3.2rem;
  font-weight: 700;
  color: #4ea3ff;
  text-shadow: 0 0 10px rgba(44, 152, 240, 0.6),
    0 0 20px rgba(102, 217, 232, 0.3);
  margin-bottom: 0.8rem;
}

.intro .highlight {
  color: #2c98f0;
}

.intro .degree {
  font-size: 1.2rem;
  font-weight: 500;
  color: #a9bbd8;
  letter-spacing: 0.3px;
  margin-bottom: 0.8rem;
}

.intro .divider {
  color: #2c98f0;
  margin: 0 6px;
}

.intro .tagline {
  font-size: 1.05rem;
  color: #c5d3ea;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

.mini-tagline {
  color: #80bfff;
  font-size: 0.95rem;
  font-style: italic;
  opacity: 0.9;
  margin-top: 0.6rem;
}

/* ✅ Updated model-viewer: no background, border, or shadow */
model-viewer {
  width: 100%;
  max-width: 500px;
  height: 400px;
  margin-top: 30px;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
}

ul.skills-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding-left: 0;
}

ul.skills-list li {
  background: #22335f;
  padding: 0.6rem 1.2rem;
  border-radius: 30px;
  font-weight: 600;
  color: #66d9e8;
  box-shadow: 0 0 8px #66d9e8aa;
  cursor: default;
  transition: box-shadow 0.3s ease;
}

ul.skills-list li:hover {
  box-shadow: 0 0 14px #2c98f0;
}

.projects-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.8rem;
}

.project-card {
  background: #22335f;
  padding: 1.5rem 1.8rem;
  border-radius: 15px;
  box-shadow: 0 0 15px #1a73e8bb;
  transition: transform 0.3s ease, box-shadow 0.4s ease;
  cursor: pointer;
  color: #cce7ff;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 25px #2c98f0, 0 0 40px #66d9e8;
  background: #27447a;
}

.project-card h3 {
  margin-bottom: 0.6rem;
  font-size: 1.3rem;
  color: #66d9e8;
  gap: 10px;
  display: flex;
  align-items: center;
}

.project-card p {
  font-size: 1rem;
  color: #b0c9db;
}

.contact form {
  max-width: 450px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.contact label {
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #66d9e8;
}

.contact input,
.contact textarea {
  padding: 0.7rem 1rem;
  margin-bottom: 1.3rem;
  border: 2px solid #2c98f0;
  border-radius: 8px;
  background: #152238;
  color: #a3b3cc;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.contact input::placeholder,
.contact textarea::placeholder {
  color: #5a7aa6;
}

.contact input:focus,
.contact textarea:focus {
  border-color: #66d9e8;
  outline: none;
}

.contact button {
  padding: 0.85rem;
  background: #2c98f0;
  color: #0f111a;
  border: none;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 0 20px #66d9e8;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.contact button:hover {
  background: #66d9e8;
  box-shadow: 0 0 30px #2c98f0;
}

/* =========================
   Explore My Journey Base Styles
========================= */
.journey-subtitle {
  color: #a3b3cc;
  font-size: 1.05rem;
  margin-bottom: 2.2rem;
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.journey-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #1e6fe0; /* darker blue tone */
  text-shadow: 0 0 6px rgba(30, 111, 224, 0.5),
    0 0 12px rgba(44, 152, 240, 0.25);
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
  position: relative;
  display: inline-block;
}

/* .journey-title::after {
        content: "";
        position: absolute;
        bottom: -8px;
        left: 50%;
        transform: translateX(-50%);
        width: 55%;
        height: 3px;
        background: linear-gradient(90deg, #1e6fe0, #3da6e0, #1e6fe0);
        border-radius: 4px;
        box-shadow: 0 0 8px rgba(61, 166, 224, 0.4);
        animation: glowLine 3s infinite alternate;
      } */

@keyframes glowLine {
  0% {
    opacity: 0.6;
    filter: blur(1px);
  }
  100% {
    opacity: 1;
    filter: blur(2px);
  }
}

@keyframes cardGlowPulse {
  0%,
  100% {
    box-shadow: 0 0 20px rgba(44, 152, 240, 0.5);
  }
  50% {
    box-shadow: 0 0 35px rgba(102, 217, 232, 0.7);
  }
}

.journey-subtitle {
  color: #a3b3cc;
  font-size: 1.05rem;
  margin-bottom: 2.2rem;
}

.journey-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
  justify-items: center;
}

.journey-card {
  width: 100%;
  max-width: 250px;
  height: 150px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  border-radius: 15px;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.4s ease;
  animation: cardGlowPulse 4s infinite ease-in-out;
}

.journey-card.education {
  background: linear-gradient(135deg, #0a1a3f, #1e5fff);
  box-shadow: 0 0 20px rgba(30, 95, 255, 0.5);
}

.journey-card.experience {
  background: linear-gradient(135deg, #022b36, #00c8ff);
  box-shadow: 0 0 20px rgba(0, 200, 255, 0.5);
}

.journey-card.awards {
  background: linear-gradient(135deg, #2b0068, #a400ff);
  box-shadow: 0 0 25px rgba(164, 0, 255, 0.55);
}

.journey-card.hobbies {
  background: linear-gradient(135deg, #05142e, #00ffaa);
  box-shadow: 0 0 20px rgba(0, 255, 170, 0.45);
}

/* Common glow + hover effect */
.journey-card {
  transition: transform 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.journey-card:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: 0 0 35px rgba(44, 152, 240, 0.9),
    0 0 60px rgba(102, 217, 232, 0.7);
}

/* ===== Fullscreen Expandable Panel ===== */
.fullscreen-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(14px);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  z-index: 99999;
  transform: scale(0.95);
  opacity: 0;
  transition: all 0.5s ease;
  overflow: hidden; /* Prevent internal overflow */
  pointer-events: none; /* So background stays clickable/scrollable */
}

.fullscreen-panel.active {
  display: flex;
  transform: scale(1);
  opacity: 1;
  pointer-events: auto; /* Re-enable when visible */
}

.fullscreen-content {
  flex: 1;
  width: 100%;
  max-width: 850px;
  overflow-y: auto; /* Scrollable education list */
  padding: 6rem 2rem 3rem;
  color: #cce7ff;
}

.fullscreen-content::-webkit-scrollbar {
  width: 8px;
}
.fullscreen-content::-webkit-scrollbar-thumb {
  background: rgba(102, 217, 232, 0.4);
  border-radius: 10px;
}

.close-btn {
  position: fixed;
  top: 20px;
  right: 25px;
  background: none;
  border: none;
  font-size: 1.8rem;
  color: #66d9e8;
  cursor: pointer;
  z-index: 100000;
  transition: transform 0.2s ease, color 0.2s ease;
}
.close-btn:hover {
  transform: scale(1.15);
  color: #fff;
}

body.fullscreen-open {
  overflow: hidden;
}

.fullscreen-panel.active {
  display: flex;
  transform: scale(1);
  opacity: 1;
}

.close-btn {
  position: absolute;
  top: 20px;
  right: 25px;
  background: none;
  border: none;
  font-size: 1.8rem;
  color: #66d9e8;
  cursor: pointer;
  transition: transform 0.2s ease, color 0.2s ease;
}

.close-btn:hover {
  transform: scale(1.15);
  color: #fff;
}

.fullscreen-content {
  max-width: 800px;
  width: 90%;
  text-align: left;
  overflow-y: auto;
  padding: 2rem;
  border-radius: 10px;
}

.fullscreen-content h2 {
  text-align: center;
  color: #2c98f0;
  font-size: 2.2rem;
  margin-bottom: 1.8rem;
  text-shadow: 0 0 15px rgba(44, 152, 240, 0.7);
}

.fullscreen-content h3 {
  margin-top: 1.8rem;
  margin-bottom: 0.6rem;
}

.fullscreen-content ul {
  margin-left: 1.2rem;
  margin-bottom: 1rem;
}

.fullscreen-content p {
  line-height: 1.7;
}

.fullscreen-content a {
  color: #66d9e8;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.25s ease;
}

.fullscreen-content a:hover {
  color: #2c98f0;
  text-decoration: underline;
}



.edu-entry {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(102, 217, 232, 0.2);
}

.edu-entry h3 {
  color: #66d9e8;
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
}

.edu-entry span {
  color: #8fbef2;
  font-size: 0.9rem;
}

/* ===== Experience Panel Styling ===== */
.exp-entry {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(102, 217, 232, 0.2);
}

.exp-entry h3 {
  color: #66d9e8;
  font-size: 1.2rem;
  margin-bottom: 0.3rem;
}

.exp-entry span {
  color: #8fbef2;
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.7rem;
}

.exp-entry ul {
  margin-left: 1rem;
  list-style: disc;
  color: #cce7ff;
  line-height: 1.6;
}

.exp-entry li {
  margin-bottom: 0.4rem;
}

/* ==== Animated Neural Network Background ==== */
#bg-network {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(circle at 20% 20%, #0a0e1a, #070912, #03040a);
}

footer {
  text-align: center;
  padding: 1.2rem 1rem;
  color: #5a7aa6;
  font-size: 0.9rem;
  user-select: none;
}

#back-to-top {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: #2c98f0;
  color: #0f111a;
  border: none;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  font-size: 1.8rem;
  cursor: pointer;
  box-shadow: 0 0 15px #66d9e8;
  opacity: 0.75;
  transition: opacity 0.3s ease;
  z-index: 10000;
}

#back-to-top:hover {
  opacity: 1;
  box-shadow: 0 0 25px #2c98f0;
}

@media (max-width: 768px) {
  nav ul.nav-links {
    display: none;
    position: fixed;
    top: 64px;
    right: 0;
    background: #0f111a;
    flex-direction: column;
    padding: 1rem 2rem;
    width: 200px;
    border-radius: 0 0 0 12px;
    box-shadow: -2px 0 15px #1a73e8aa;
    height: calc(100vh - 64px);
    overflow-y: auto;
  }
  nav ul.nav-links.active {
    display: flex;
  }
  .menu-toggle {
    display: block;
  }
}

.click-hint {
  display: inline-block;
  margin-top: 0.6rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #66d9e8;
  opacity: 0.85;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.project-card:hover .click-hint {
  opacity: 1;
  transform: translateX(6px);
}

/* =========================
   Skills Section Refinement
========================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.skills-card {
  background: rgba(34, 51, 95, 0.65);
  border-radius: 14px;
  padding: 1.4rem 1.6rem;
  border: 1px solid rgba(102, 217, 232, 0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skills-card h3 {
  color: #66d9e8;
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
  font-weight: 600;
}

.skills-card p {
  color: #c5d3ea;
  font-size: 0.95rem;
  line-height: 1.6;
}

.skills-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 18px rgba(44, 152, 240, 0.35);
}

/* =========================
   Contact Section Enhancements
========================= */
.contact-intro {
  max-width: 600px;
  margin: 0 auto 1.5rem;
  color: #c5d3ea;
  font-size: 1rem;
  text-align: center;
  line-height: 1.6;
}

.contact-actions {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.cv-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.4rem;
  border-radius: 10px;
  background: linear-gradient(135deg, #2c98f0, #66d9e8);
  color: #0f111a;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 0 18px rgba(102, 217, 232, 0.45);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.cv-download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(44, 152, 240, 0.7);
}


/* ===================================================
   END OF STYLE SHEET
=================================================== */