/* ==========================================================================
   Cyber-Tech Design System — Abhinit Pradhan Portfolio
   ========================================================================== */

:root {
  --bg-color: #07080a;
  --bg-card: #0e1017;
  --bg-card-hover: #141722;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 240, 255, 0.3);
  
  --text-main: #ffffff;
  --text-muted: #8e96a4;
  --text-dim: #5c6470;
  
  --cyan-accent: #00f0ff;
  --cyan-glow: rgba(0, 240, 255, 0.15);
  
  --font-display: 'Syne', 'Bebas Neue', sans-serif;
  --font-heading: 'Bebas Neue', 'Syne', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-body);
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Ambient Cyber Grid Background */
.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 0;
}

.glow-point {
  position: fixed;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--cyan-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

/* Typography Helpers */
.cyan-sq {
  color: var(--cyan-accent);
  margin-right: 6px;
}

.cyan-dot {
  color: var(--cyan-accent);
}

.heading-outline {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.7);
}

/* ==========================================================================
   Header & Navbar
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(7, 8, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1380px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 2px;
  color: var(--text-main);
  text-decoration: none;
}

.accent-slash {
  color: var(--cyan-accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-main);
}

.btn-resume-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  color: #000000;
  border: none;
  padding: 0.55rem 1.3rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn-resume-nav:hover {
  transform: translateY(-2px);
  background: #e6e6e6;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  padding-top: 10rem;
  padding-bottom: 5rem;
}

.hero-meta-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  margin-bottom: 2rem;
}

.hero-title-container {
  margin-bottom: 2rem;
}

.hero-name-solid,
.hero-name-outline {
  font-family: var(--font-heading);
  font-size: clamp(4.5rem, 11vw, 10rem);
  line-height: 0.88;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero-name-solid {
  color: #ffffff;
}

.hero-name-outline {
  color: transparent;
  -webkit-text-stroke: 2px rgba(255, 255, 255, 0.85);
}

.hero-tech-stack {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
  word-break: break-word;
}

.hero-tech-stack .arrow {
  color: var(--cyan-accent);
  margin-right: 8px;
}

.hero-bio {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 680px;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.hero-cta-group {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 5rem;
  flex-wrap: wrap;
}

.btn-primary {
  background: #ffffff;
  color: #000000;
  border: none;
  padding: 1.1rem 2.2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background: #d9d9d9;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 1.1rem 2.2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  border-color: var(--cyan-accent);
  color: var(--cyan-accent);
  transform: translateY(-2px);
}

/* Stats Grid */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2.5rem;
}

.stat-card {
  padding: 0.5rem;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--cyan-accent);
  display: block;
  margin-bottom: 0.6rem;
}

.stat-title {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.2rem;
}

.stat-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 1px;
}

/* ==========================================================================
   Marquee Infinite Ticker
   ========================================================================== */

.marquee-wrapper {
  width: 100%;
  overflow: hidden;
  background: #000000;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem 0;
  margin: 4rem 0;
  white-space: nowrap;
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 25s linear infinite;
}

.marquee-content {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  letter-spacing: 4px;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.4);
  padding-right: 2rem;
}

.marquee-content .star {
  color: var(--cyan-accent);
  -webkit-text-stroke: 0;
  font-size: 2.5rem;
  vertical-align: middle;
  margin: 0 1rem;
}

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

/* ==========================================================================
   About Section (Who I Am)
   ========================================================================== */

.about-section {
  padding: 6rem 0;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  letter-spacing: 2px;
  margin-bottom: 1.5rem;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  line-height: 0.9;
  margin-bottom: 4rem;
}

.about-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 4rem;
  align-items: start;
}

/* 3D Avatar Card */
.avatar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.avatar-img-container {
  width: 100%;
  aspect-ratio: 4/5;
  background: #11141c;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(80%) contrast(110%);
  transition: filter 0.4s ease, transform 0.4s ease;
}

.avatar-card:hover .avatar-img {
  filter: grayscale(0%) contrast(100%);
  transform: scale(1.03);
}

.avatar-badge-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1.2rem;
  background: rgba(0, 0, 0, 0.8);
  border-top: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.rec-dot {
  color: var(--cyan-accent);
}

/* Chapters */
.chapters-list {
  display: flex;
  flex-direction: column;
}

.chapter-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-color);
}

.chapter-item:last-child {
  border-bottom: 1px solid var(--border-color);
}

.chapter-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--cyan-accent);
  font-weight: 700;
}

.chapter-title {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.chapter-desc {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ==========================================================================
   Skills Section (What I Ship)
   ========================================================================== */

.skills-section {
  padding: 6rem 0;
}

.skills-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4rem;
  gap: 2rem;
}

.section-heading-row {
  font-family: var(--font-heading);
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  line-height: 0.9;
}

.skills-subtitle {
  max-width: 420px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 2.2rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.skill-card:hover {
  border-color: var(--cyan-accent);
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.05);
}

.skill-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.skill-icon-num {
  color: var(--cyan-accent);
  font-weight: 700;
}

.skill-meta-label {
  color: var(--text-dim);
  letter-spacing: 1px;
}

.skill-name {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  letter-spacing: 1px;
  margin-bottom: 1.8rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tech-tag {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  border-radius: 2px;
}

/* ==========================================================================
   Projects Section
   ========================================================================== */

.projects-section {
  padding: 6rem 0;
}

.projects-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4rem;
}

.section-heading-stacked {
  font-family: var(--font-heading);
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  line-height: 0.88;
}

.vault-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  border: 1px solid var(--border-color);
  padding: 0.7rem 1.2rem;
  border-radius: 20px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.project-card:hover {
  border-color: var(--cyan-accent);
  transform: translateY(-5px);
}

.project-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4/5;
  overflow: hidden;
  background: #11141c;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(70%) brightness(85%);
  transition: all 0.4s ease;
}

.project-card:hover .project-img {
  filter: grayscale(0%) brightness(100%);
  transform: scale(1.05);
}

.project-tag-overlay {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border-color);
}

.project-status-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 2px;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.85);
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--border-color);
}

.project-status-badge.cyan-status {
  color: var(--cyan-accent);
  border-color: var(--cyan-accent);
}

.project-card-footer {
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  letter-spacing: 1px;
}

.arrow-link {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--cyan-accent);
  transition: transform 0.2s ease;
}

.project-card:hover .arrow-link {
  transform: translate(3px, -3px);
}

/* ==========================================================================
   Footer Section
   ========================================================================== */

.footer-section {
  padding: 8rem 0 3rem 0;
  border-top: 1px solid var(--border-color);
}

.footer-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 5rem 4rem;
  border-radius: 4px;
  margin-bottom: 4rem;
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 2px;
  color: var(--cyan-accent);
  margin-bottom: 1.5rem;
}

.footer-headline {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 0.95;
  margin-bottom: 1.5rem;
}

.footer-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 3rem;
  line-height: 1.6;
}

.footer-actions {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 4rem;
}

.footer-bottom-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-color);
}

.f-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
}

.f-val {
  font-size: 0.95rem;
  color: var(--text-main);
  font-weight: 500;
}

.f-links {
  display: flex;
  gap: 1.2rem;
}

.f-links a {
  color: var(--text-main);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  transition: color 0.2s;
}

.f-links a:hover {
  color: var(--cyan-accent);
}

.copyright-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 1px;
}

/* ==========================================================================
   Modals
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  width: 90%;
  max-width: 540px;
  padding: 3rem;
  border-radius: 4px;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-content.large-modal {
  max-width: 750px;
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 2rem;
  cursor: pointer;
}

.modal-header {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  margin-bottom: 0.5rem;
}

.modal-desc, .modal-sub-label {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.contact-form .form-group {
  margin-bottom: 1.5rem;
}

.contact-form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-color);
  padding: 0.9rem 1.2rem;
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--cyan-accent);
}

.btn-primary.full-width {
  width: 100%;
  justify-content: center;
}

/* Resume Preview styling */
.resume-preview-box {
  background: #050608;
  border: 1px solid var(--border-color);
  padding: 2rem;
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: 2rem;
}

.resume-section {
  margin-bottom: 1.8rem;
}

.resume-section h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--cyan-accent);
  letter-spacing: 1.5px;
  margin-bottom: 0.6rem;
}

.resume-section p, .resume-section li {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.resume-section ul {
  padding-left: 1.2rem;
}

.modal-footer-btns {
  display: flex;
  justify-content: flex-end;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 1024px) {
  .about-layout {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-section {
    padding-top: 7rem;
  }
  .hero-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom-grid {
    grid-template-columns: 1fr;
  }
  .terminal-drawer {
    width: 90%;
    right: 5%;
  }
}