/*-- © 2025 Arian Bhuiyan. All rights reserved. Do not copy or reuse. --*/

html {
  scroll-behavior: smooth;
  background-color: #000;
}

body {
  margin: 0;
  color: #fff;
  font-family: 'Inter', sans-serif;
}

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

section {
  width: 100%;
  box-sizing: border-box;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 0;
}

*, *::before, *::after {
  box-sizing: border-box;
}

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(5px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  font-family: 'Inter', sans-serif;
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo a {
  color: hsl(0, 0%, 0%);
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 2rem;
  font-weight: 700;
}

.logo a:hover {
  color: hsl(192, 84%, 23%);
}

.navbarText ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
}

.navbarText a {
  text-decoration: none;
  color: hsl(0, 0%, 0%);
  font-size: 1.125rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

.navbar.scrolled .navbarText a {
  color: hsl(0, 0%, 100%);
}

.navbarText a:hover {
  color: hsl(192, 84%, 23%);
}

/* HERO */
#hero {
  height: 100vh;
  background: url('images/headshot2.png') no-repeat center center;
  background-size: cover;
  color: #000;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  position: relative;
  padding: 0;
  margin: 0;
  overflow: hidden;
}

#hero h1 {
  margin: 0;
  font-size: 164px;
  font-weight: 700;
  line-height: 1;
  padding-top: 15vh;
  mix-blend-mode: difference;
  color: #BCD7E8;
}

#hero h2 {
  position: absolute;
  bottom: 25vh;
  left: 8vh;
  text-align: left;
  font-size: 36px;
  color: hsl(0, 0%, 0%);
}

#hero h2 span {
  display: block;
}

#hero button {
  position: absolute;
  bottom: 19vh;
  left: 20vh;
  padding: 0.8em 2em;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: #BCD7E8;
  background: rgba(188, 215, 232, 0.1);
  border: 1px solid #BCD7E8;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(4px);
  mix-blend-mode: difference;
  letter-spacing: 0.05em;
}

#hero button:hover {
  background: rgba(188, 215, 232, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(188, 215, 232, 0.2);
}

#hero button:active {
  transform: translateY(0);
  background: rgba(188, 215, 232, 0.3);
}

/* ABOUT + CONTACT baseline */
#AboutMe,
#ContactMe {
  background: #000;
  color: white;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

/* ABOUT SECTION (glow blobs) */
#AboutMe {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: radial-gradient(circle at top left, #0f1820 0%, #0b0b0f 65%, #0f1116 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

#AboutMe::before,
#AboutMe::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

#AboutMe::before {
  width: 700px;
  height: 700px;
  left: -15%;
  top: -10%;
  background: radial-gradient(circle, rgba(0,255,196,0.45) 0%, transparent 70%);
  animation: aboutBlob1 12s ease-in-out infinite;
}

#AboutMe::after {
  width: 600px;
  height: 600px;
  right: -20%;
  bottom: -15%;
  background: radial-gradient(circle, rgba(0,194,210,0.32) 0%, transparent 70%);
  animation: aboutBlob2 14s ease-in-out infinite;
}

#AboutMe .container,
#AboutMe .about-content {
  position: relative;
  z-index: 1;
}

@keyframes aboutBlob1 {
  0%, 100% { transform: scale(1) translate(0, 0); }
  50%     { transform: scale(1.15) translate(40px, -20px); }
}

@keyframes aboutBlob2 {
  0%, 100% { transform: scale(1) translate(0, 0); }
  50%     { transform: scale(1.2) translate(-30px, 25px); }
}

.about-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding-bottom: 4rem;
}

.about-text {
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
}

.about-text p {
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  color: #BCD7E8;
}

.skills-container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.skills-container h3 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: #BCD7E8;
  text-align: left;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.skill-item {
  text-align: left;
}

.skill-name {
  display: block;
  margin-bottom: 0.5rem;
  color: #BCD7E8;
  font-weight: 500;
}

.skill-bar {
  height: 8px;
  background: rgba(188, 215, 232, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.skill-level {
  height: 100%;
  background: #BCD7E8;
  border-radius: 4px;
  transition: width 1s ease-in-out;
}

/* PROJECTS (themed to match About/Contact) */
#Projects {
  position: relative;
  overflow: hidden;
  padding: 7.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  background: radial-gradient(circle at 10% 10%, #0f1820 0%, #0b0b0f 55%, #121217 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: #eaf6ff;
}

#Projects::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(188,215,232,0.018) 0 2px, transparent 2px 48px),
    repeating-linear-gradient(0deg, rgba(188,215,232,0.012) 0 2px, transparent 2px 48px);
  mix-blend-mode: overlay;
  opacity: 0.7;
  z-index: 0;
  filter: blur(0.6px);
}

.projects-coming-soon {
  max-width: 980px;
  width: 100%;
  margin-top: 3.25rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(0,0,0,0.06));
  border: 1px solid rgba(188,215,232,0.05);
  padding: 2.25rem;
  border-radius: 14px;
  box-shadow: 0 12px 50px rgba(6,8,18,0.6);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}

.projects-coming-soon .coming-badge {
  display: inline-block;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: #071018;
  background: linear-gradient(90deg, rgba(188,215,232,0.96), rgba(0,200,170,0.9));
  margin-bottom: 0.5rem;
  box-shadow: 0 8px 28px rgba(0,200,170,0.06);
}

.projects-coming-soon .construction-text h3 {
  font-size: 2.2rem;
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: linear-gradient(90deg, rgba(188,215,232,1), rgba(0,200,170,1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 8px 30px rgba(0,200,170,0.04);
}

.projects-coming-soon .construction-text p {
  color: #c8dbe6;
  font-size: 1.06rem;
  line-height: 1.6;
  margin: 0.5rem auto 0;
  max-width: 760px;
}

.construction-line {
  height: 3px;
  width: 60%;
  max-width: 720px;
  margin: 1.5rem auto 0;
  background: linear-gradient(90deg, transparent, rgba(188,215,232,0.16), transparent);
  border-radius: 2px;
  box-shadow: 0 6px 26px rgba(0,200,170,0.02);
}

/* CONTACT */
#ContactMe {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(180deg, #0a0a0f 0%, #151522 100%);
  border-top: 1px solid rgba(255,255,255,0.03);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
}

#ContactMe .container {
  max-width: 900px;
  width: 100%;
  text-align: center;
  position: relative;
  z-index: 1;
}

#ContactMe h2 {
  margin-bottom: 1.5rem;
  color: #BCD7E8;
}

.contact-text {
  color: #bfbfbf;
  font-size: 1.15rem;
  margin-bottom: 2rem;
  text-align: center;
}

.social-links {
  display: flex;
  gap: 1.25rem;
  justify-content: center;
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 220px;
  padding: 1.25rem 1.5rem;
  border-radius: 12px;
  border: 1px solid rgba(188,215,232,0.16);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  text-decoration: none;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease;
}

.social-link:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(188,215,232,0.08);
  background: linear-gradient(180deg, rgba(188,215,232,0.03), rgba(188,215,232,0.01));
}

.link-text {
  color: #BCD7E8;
  font-weight: 700;
  font-size: 1.05rem;
}

.link-description {
  color: #bfbfbf;
  font-size: 0.9rem;
  margin-top: 0.35rem;
  word-break: break-word;
}

#ContactMe .ring {
  position: absolute;
  left: 50%;
  top: 45%;
  transform: translate(-50%, -50%) scale(1);
  border-radius: 50%;
  pointer-events: none;
  mix-blend-mode: screen;
}

#ContactMe .ring.r1 {
  width: 1000px;
  height: 1000px;
  background: radial-gradient(circle, rgba(80,120,255,0.15) 0%, transparent 60%);
  filter: blur(40px);
  animation: ringPulseA 10s ease-in-out infinite;
}

#ContactMe .ring.r2 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(0,200,170,0.14) 0%, transparent 60%);
  filter: blur(25px);
  animation: ringPulseB 12s ease-in-out infinite;
}

#ContactMe .ring.r3 {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(188,215,232,0.26) 0%, transparent 65%);
  filter: blur(15px);
  animation: ringPulseC 8s ease-in-out infinite;
}
/* Back to Top Button */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(188,215,232,0.16), rgba(188,215,232,0.06));
    border: 1px solid rgba(188,215,232,0.3);
    color: #BCD7E8;
    font-size: 22px;
    font-weight: 700;
    cursor: pointer;
    display: none; /* Hidden until user scrolls */
    justify-content: center;
    align-items: center;
    z-index: 1200;
    transition: all 0.3s ease, transform 0.2s ease;
}

#backToTop:hover {
    background: linear-gradient(180deg, rgba(188,215,232,0.25), rgba(188,215,232,0.08));
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(188,215,232,0.2);
}

#backToTop:active {
    transform: translateY(0);
}


@keyframes ringPulseA {
  0%, 100% { transform: translate(-50%, -50%) scale(0.95); opacity: 0.9; }
  50%     { transform: translate(-50%, -50%) scale(1.05); opacity: 0.5; }
}

@keyframes ringPulseB {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.95; }
  50%     { transform: translate(-50%, -50%) scale(1.07); opacity: 0.6; }
}

@keyframes ringPulseC {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  50%     { transform: translate(-50%, -50%) scale(1.1); opacity: 0.7; }
}

@keyframes fadeUp {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Responsive: desktop -> tablet -> phone adjustments */
@media (max-width: 1024px) {
  #ContactMe .ring.r1 { width: 650px; height: 650px; }
  #ContactMe .ring.r2 { width: 450px; height: 450px; }
  #ContactMe .ring.r3 { width: 240px; height: 240px; }

  #Projects { padding: 6.5rem 2rem; }
  #Projects h2 { font-size: 2.8rem; }
  .projects-coming-soon { padding: 1.6rem; margin-top: 2rem; }
  .projects-coming-soon .construction-text h3 { font-size: 1.6rem; }
  .construction-line { width: 80%; }
}

@media (max-width: 768px) {
  .construction-text h3 { font-size: 2.25rem; }
  .social-link { min-width: 100%; }
  .construction-line { width: 80%; }
  #ContactMe { padding: 3rem 1.25rem; }

  #hero h1 { font-size: 64px; padding-top: 15vh; }
  #hero h2 { font-size: 24px; bottom: 10vh; left: 5vh; }

  .navbar { padding: 1rem; }
  .logo a { font-size: 1.5rem; }
  .navbarText ul { gap: 1rem; }
  .navbarText a { font-size: 1rem; }

  #hero button { padding: 0.7em 1.8em; font-size: 0.9rem; bottom: 15vh; left: 8vh; }

  .about-content { padding: 1rem; gap: 2rem; }
  .about-text p { font-size: 1rem; }
  .skills-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .container { padding: 1rem; }
}

@media (max-width: 480px) {
  .construction-text h3 { font-size: 1.8rem; }
  .construction-line { width: 95%; }
  .contact-text { font-size: 1rem; }

  #hero h1 { font-size: 48px; }

  .navbar { flex-direction: column; align-items: center; padding: 0.5rem; }
  .navbarText ul { margin-top: 0.5rem; }

  #AboutMe h2,
  #Projects h2,
  #ContactMe h2 {
    font-size: 36px;
    padding-top: 10%;
  }

  #Projects { padding: 5.5rem 1rem; }
  #Projects h2 { font-size: 2.2rem; letter-spacing: 0.05em; padding-bottom: 1.25rem; }
  .projects-coming-soon { padding: 1.1rem; border-radius: 12px; margin-top: 1.25rem; }
  .projects-coming-soon .construction-text h3 { font-size: 1.25rem; }
  .projects-coming-soon .construction-text p { font-size: 0.95rem; }

  .about-content { padding: 0.5rem; }
  .skills-container h3 { font-size: 1.2rem; margin-bottom: 1.5rem; }
  .skill-name { font-size: 0.9rem; }
  .skill-bar { height: 6px; }
}
@media (max-width: 768px) {
  #hero button {
    position: absolute;    
    bottom: 2rem;          
    left: 50%;             
    transform: translateX(-50%);
    width: 80%;            
    font-size: 1rem;
    padding: 0.8em 0;
    margin: 0;             
    z-index: 10;           
  }
}
/* Desktop */
#hero h1 {
  font-size: 180px;
  white-space: nowrap;
}

/* Tablet */
@media (max-width: 768px) {
  #hero h1 {
    font-size: 80px;  
  }
}

/* Mobile */
@media (max-width: 480px) {
  #hero h1 {
    font-size: 56px;  
  }
}
#hero h1 {
  white-space: nowrap;
  font-size: clamp(48px, 12vw, 180px); 
}
.navbar.scrolled .logo a {
  color: hsl(0, 0%, 100%);
}
#AboutMe h2,
#Projects h2,
#ContactMe h2 {
  font-size: clamp(48px, 8vw, 120px); 
  line-height: 1.1;
  font-weight: 900;
  text-transform: uppercase;
  color: #BCD7E8;
  mix-blend-mode: normal; 
  text-shadow: 0 10px 28px rgba(6,8,18,0.65); 
  position: relative;
  z-index: 1;
  margin: 0 auto;
  text-align: center;
}
#hero h2 {
  position: absolute;
  bottom: 25vh;
  left: 8vh;
  text-align: left;
  font-size: 36px;
  color: hsl(0, 0%, 57%);
  line-height: 1.4; 
  mix-blend-mode: difference;
}

#hero h2 span {
  display: block;
}

#hero h2 .line3 {
  
  margin-left: 1.2em;
  line-height: 0.5; 
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  #hero h2 {
    font-size: 24px;
    bottom: 10vh;
    left: 5vh;
    line-height: 1.3;
    mix-blend-mode: difference;
    padding-bottom: 3vh;
  }
  
  #hero h2 .line3 {
    margin-left: 1.1em; 
  }
}

@media (max-width: 480px) {
  #hero h2 {
    color: #FFF;
    font-size: 20px;
    bottom: 8vh;
    left: 5vh;
    line-height: 1.2;
    mix-blend-mode: normal;
    padding-bottom: 3vh;
  }
  
  #hero h2 .line3 {
    margin-left: 1em; 
  }
}