/* ================================================
   Shreya Gautam — Portfolio  |  style.css
   ================================================ */

/* ---------- Custom Properties ---------- */
:root {
  /* Palette */
  --bg-primary:    #0a0a0f;
  --bg-secondary:  #111118;
  --bg-card:       rgba(255, 255, 255, 0.03);
  --bg-glass:      rgba(255, 255, 255, 0.05);

  --text-primary:  #e8e8ef;
  --text-secondary:#9a9ab0;
  --text-muted:    #5a5a72;

  --accent:        #8b5cf6;          /* vivid purple   */
  --accent-light:  #a78bfa;
  --accent-dark:   #6d28d9;
  --teal:          #2dd4bf;          /* fresh teal     */
  --teal-dark:     #14b8a6;
  --pink:          #f472b6;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, var(--accent) 0%, var(--teal) 100%);
  --gradient-card: linear-gradient(145deg, rgba(139,92,246,.12), rgba(45,212,191,.08));

  /* Spacing / Sizing */
  --nav-height:    72px;
  --container:     1140px;
  --radius:        16px;
  --radius-sm:     10px;

  /* Font */
  --font-body:  'Inter', sans-serif;
  --font-heading: 'Space Grotesk', sans-serif;

  /* Transition */
  --ease: cubic-bezier(.4, 0, .2, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: transparent; font-family: inherit; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Cursor Glow ---------- */
.cursor-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(139,92,246,.08) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  z-index: 0;
  transition: opacity .6s var(--ease);
  will-change: left, top;
}

/* ================================================
   NAVBAR
   ================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: background .4s var(--ease), box-shadow .4s var(--ease);
}

.navbar.scrolled {
  background: rgba(10, 10, 15, .85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,.05);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-bracket { color: var(--accent); }

.nav-menu {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 8px 18px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: color .3s, background .3s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav-link.active { color: var(--accent-light); }

/* Hamburger */
.nav-toggle {
  display: none;
  width: 32px; height: 32px;
  position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all .35s var(--ease);
  position: absolute;
  left: 4px;
}

.hamburger { top: 15px; }
.hamburger::before { content: ''; top: -8px; }
.hamburger::after  { content: ''; top:  8px; }

.nav-toggle.open .hamburger { background: transparent; }
.nav-toggle.open .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle.open .hamburger::after  { top: 0; transform: rotate(-45deg); }

/* ================================================
   HERO
   ================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 40px) 24px 60px;
  gap: 60px;
  max-width: var(--container);
  margin: 0 auto;
  overflow: hidden;
}

/* Particles container */
.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  flex: 1 1 55%;
  z-index: 1;
}

.hero-greeting {
  font-size: .95rem;
  font-weight: 500;
  color: var(--teal);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero-name {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.highlight {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title-wrapper {
  display: flex;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 20px;
  min-height: 2em;
}

.typed-text { color: var(--accent-light); }

.cursor-blink {
  color: var(--accent);
  animation: blink .7s steps(1) infinite;
  margin-left: 2px;
}

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

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: .9rem;
  font-weight: 600;
  border-radius: 12px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--gradient-hero);
  color: #fff;
  box-shadow: 0 4px 24px rgba(139,92,246,.3);
}

.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(139,92,246,.45);
}

.btn-outline {
  border: 1.5px solid rgba(139,92,246,.4);
  color: var(--accent-light);
}

.btn-outline:hover {
  background: rgba(139,92,246,.1);
  border-color: var(--accent-light);
}

/* Hero socials */
.hero-socials {
  display: flex;
  gap: 16px;
}

.social-link {
  width: 42px; height: 42px;
  display: grid;
  place-items: center;
  border: 1.5px solid rgba(255,255,255,.08);
  border-radius: 12px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: color .3s, border-color .3s, transform .3s, background .3s;
}

.social-link:hover {
  color: var(--accent-light);
  border-color: var(--accent);
  background: rgba(139,92,246,.08);
  transform: translateY(-3px);
}

/* Profile image */
.hero-image {
  flex: 0 0 320px;
  z-index: 1;
}

.profile-ring {
  position: relative;
  width: 300px; height: 300px;
  border-radius: 50%;
  padding: 6px;
  background: var(--gradient-hero);
  animation: ring-rotate 8s linear infinite;
}

@keyframes ring-rotate {
  to { filter: hue-rotate(360deg); }
}

.profile-img {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-primary);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-mouse {
  display: block;
  width: 26px; height: 42px;
  border: 2px solid rgba(255,255,255,.15);
  border-radius: 14px;
  position: relative;
}

.scroll-dot {
  position: absolute;
  left: 50%; top: 8px;
  width: 4px; height: 8px;
  margin-left: -2px;
  background: var(--accent-light);
  border-radius: 4px;
  animation: scroll-bounce 1.8s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { top: 8px; opacity: 1; }
  50%      { top: 22px; opacity: .2; }
}

/* ================================================
   SECTIONS — Shared
   ================================================ */
.section {
  padding: 100px 0;
  position: relative;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 60px;
  text-align: center;
  letter-spacing: -0.5px;
}

.heading-number {
  color: var(--accent);
  font-size: .85em;
  margin-right: 10px;
}

/* ================================================
   ABOUT
   ================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1rem;
}

.about-text strong { color: var(--text-primary); }

.about-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.detail-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.05);
  border-radius: var(--radius-sm);
  transition: border-color .3s, transform .3s;
}

.detail-card:hover {
  border-color: rgba(139,92,246,.3);
  transform: translateY(-3px);
}

.detail-icon {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  color: var(--accent-light);
  background: rgba(139,92,246,.1);
  border-radius: 10px;
  flex-shrink: 0;
}

.detail-card h4 {
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.detail-card p {
  font-size: .8rem;
  color: var(--text-secondary);
}

/* ================================================
   SKILLS
   ================================================ */
.skills { background: var(--bg-secondary); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
}

.skill-card {
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.05);
  border-radius: var(--radius);
  text-align: center;
  transition: border-color .3s, transform .3s;
}

.skill-card:hover {
  border-color: rgba(139,92,246,.3);
  transform: translateY(-4px);
}

.skill-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.skill-card h4 {
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.skill-bar {
  height: 6px;
  width: 100%;
  background: rgba(255,255,255,.06);
  border-radius: 3px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0;
  background: var(--gradient-hero);
  border-radius: 3px;
  transition: width 1.2s var(--ease);
}

/* ================================================
   PORTFOLIO
   ================================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.05);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .3s, transform .4s var(--ease);
}

.project-card:hover {
  border-color: rgba(139,92,246,.35);
  transform: translateY(-6px);
}

.project-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.project-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}

.project-card:hover .project-image img {
  transform: scale(1.06);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,10,15,.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  opacity: 0;
  transition: opacity .35s var(--ease);
}

.project-card:hover .project-overlay { opacity: 1; }

.project-btn {
  width: 48px; height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 1.1rem;
  color: #fff;
  background: var(--accent);
  transition: background .3s, transform .3s;
}

.project-btn:hover {
  background: var(--accent-dark);
  transform: scale(1.1);
}

.project-info {
  padding: 24px;
}

.project-info h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.project-info p {
  font-size: .875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-tags span {
  padding: 4px 12px;
  font-size: .75rem;
  font-weight: 500;
  border-radius: 6px;
  background: rgba(139,92,246,.1);
  color: var(--accent-light);
  border: 1px solid rgba(139,92,246,.18);
}

/* ================================================
   CONTACT
   ================================================ */
.contact { background: var(--bg-secondary); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-secondary);
  font-size: .95rem;
}

.contact-item i {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  font-size: 1rem;
  color: var(--accent-light);
  background: rgba(139,92,246,.1);
  border-radius: 10px;
}

.contact-socials {
  display: flex;
  gap: 12px;
}

.contact-socials a {
  width: 42px; height: 42px;
  display: grid;
  place-items: center;
  border: 1.5px solid rgba(255,255,255,.08);
  border-radius: 12px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: color .3s, border-color .3s, background .3s, transform .3s;
}

.contact-socials a:hover {
  color: var(--accent-light);
  border-color: var(--accent);
  background: rgba(139,92,246,.08);
  transform: translateY(-3px);
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 16px 18px;
  font-family: inherit;
  font-size: .95rem;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1.5px solid rgba(255,255,255,.07);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .3s, background .3s;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(139,92,246,.04);
}

.form-group label {
  position: absolute;
  left: 18px; top: 16px;
  font-size: .95rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: all .25s var(--ease);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
  top: -10px;
  left: 14px;
  font-size: .75rem;
  color: var(--accent-light);
  background: var(--bg-secondary);
  padding: 0 6px;
  border-radius: 4px;
}

.btn-submit {
  align-self: flex-start;
  width: auto;
}

.btn-submit:disabled {
  opacity: .6;
  cursor: not-allowed;
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
  padding: 28px 0;
  text-align: center;
  font-size: .85rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,.04);
}

.heart-icon { color: var(--pink); }

/* ================================================
   REVEAL ANIMATION
   ================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero animate‑in */
.animate-in {
  opacity: 0;
  transform: translateY(28px);
  animation: fadeSlideUp .8s var(--ease) forwards;
}

.animate-in:nth-child(1) { animation-delay: .15s; }
.animate-in:nth-child(2) { animation-delay: .30s; }
.animate-in:nth-child(3) { animation-delay: .45s; }
.animate-in:nth-child(4) { animation-delay: .60s; }
.animate-in:nth-child(5) { animation-delay: .75s; }
.animate-in:nth-child(6) { animation-delay: .90s; }
.animate-in:nth-child(7) { animation-delay: 1.05s; }

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

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 900px) {
  .hero {
    flex-direction: column-reverse;
    text-align: center;
    padding-top: calc(var(--nav-height) + 24px);
    gap: 36px;
  }

  .hero-content { align-items: center; display: flex; flex-direction: column; }
  .hero-title-wrapper { justify-content: center; }
  .hero-description { text-align: center; }
  .hero-cta { justify-content: center; }
  .hero-socials { justify-content: center; }

  .hero-image { flex: 0 0 auto; }
  .profile-ring { width: 220px; height: 220px; }

  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-menu {
    position: fixed;
    top: 0; right: -100%;
    width: 280px; height: 100vh;
    background: rgba(10,10,15,.96);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 100px 32px 32px;
    gap: 8px;
    transition: right .4s var(--ease);
  }

  .nav-menu.open { right: 0; }
  .nav-toggle { display: block; z-index: 1001; }

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

  .btn { padding: 12px 24px; font-size: .85rem; }
}