/* Base & Layout */

:root {
    --bg: #050816;
    --bg-alt: #0b1020;
    --card-bg: #101426;
    --accent: #7c3aed;
    --accent-soft: rgba(124, 58, 237, 0.2);
    --text: #f9fafb;
    --muted: #9ca3af;
    --border-subtle: rgba(148, 163, 184, 0.2);
    --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.85);
    --radius-lg: 16px;
    --radius-full: 999px;
    --transition-fast: 0.2s ease;
    --transition-med: 0.35s ease;
  }
  
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    margin: 0;
    font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: radial-gradient(circle at top left, #1e1b4b 0, #020617 45%, #020617 100%);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
  }
  
  img {
    max-width: 100%;
    display: block;
  }
  
  a {
    color: inherit;
    text-decoration: none;
  }
  
  .container {
    width: min(1120px, 100% - 3rem);
    margin: 0 auto;
  }
  
  .section {
    padding: 5.5rem 0;
    position: relative;
  }
  
  .section--alt {
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.18), transparent 55%);
  }
  
  /* Subtle gradient orbs */
  
  .section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 10% 20%, rgba(56, 189, 248, 0.07), transparent 55%),
      radial-gradient(circle at 90% 80%, rgba(124, 58, 237, 0.1), transparent 55%);
    mix-blend-mode: screen;
    opacity: 0.7;
    pointer-events: none;
    z-index: -1;
  }
  
  /* Section Headers */
  
  .section__header {
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .section__title {
    font-size: clamp(1.9rem, 3vw, 2.3rem);
    margin-bottom: 0.4rem;
    letter-spacing: 0.04em;
  }
  
  .section__subtitle {
    font-size: 0.95rem;
    color: var(--muted);
  }
  
  /* Header / Navbar */
  
  .header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    background: linear-gradient(to bottom, rgba(2, 6, 23, 0.9), rgba(2, 6, 23, 0.7), transparent);
    border-bottom: 1px solid rgba(148, 163, 184, 0.19);
  }
  
  .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 0;
  }
  
  .nav__brand {
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  
  .nav__brand span {
    color: var(--accent);
  }
  
  .nav__links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.75rem;
    margin: 0;
    padding: 0;
  }
  
  .nav__link {
    font-size: 0.9rem;
    color: var(--muted);
    position: relative;
    padding-block: 0.25rem;
    transition: color var(--transition-fast);
  }
  
  .nav__link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -0.1rem;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, #4f46e5, #ec4899);
    border-radius: 999px;
    transition: width var(--transition-med);
  }
  
  .nav__link:hover {
    color: var(--text);
  }
  
  .nav__link:hover::after,
  .nav__link.active::after {
    width: 70%;
  }
  
  .nav__link.active {
    color: var(--text);
  }
  
  /* Mobile nav toggle */
  
  .nav__toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
  }
  
  .nav__toggle-line {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 999px;
    background: var(--text);
    margin: 4px 0;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }
  
/* Hero */

.hero {
    min-height: calc(100vh - 64px);
    display: flex;
    align-items: center;
  }
  
  .hero__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1.8rem;
  }
  
  .hero__eyebrow {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--muted);
    margin-bottom: 0.8rem;
  }
  
  .hero__title {
    font-size: clamp(2.4rem, 4vw, 3rem);
    line-height: 1.1;
    margin: 0 0 0.4rem;
  }
  
  .hero__title span {
    background: linear-gradient(120deg, #4f46e5, #22d3ee, #f97316);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  
  .hero__subtitle {
    font-size: 1rem;
    color: var(--muted);
    margin-bottom: 1rem;
  }
  
  .hero__description {
    font-size: 0.98rem;
    color: #e5e7eb;
    max-width: 36rem;
    margin: 0 auto 1.6rem;
  }
  
  .hero__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.9rem;
  }
  
  .hero__social {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.7rem;
  }
  
  .hero__social-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--muted);
  }
  
  .hero__social-row {
    display: flex;
    align-items: center;
    gap: 0.85rem;
  }
  
  .hero__social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 999px;
    position: relative;
    color: #e5e7eb;
    background: radial-gradient(circle at 30% 0, rgba(148, 163, 184, 0.16), rgba(15, 23, 42, 0.95));
    border: 1px solid rgba(148, 163, 184, 0.6);
    overflow: hidden;
    transition:
      transform var(--transition-med),
      box-shadow var(--transition-med),
      border-color var(--transition-med),
      background var(--transition-med);
  }
  
  .hero__social-link::before {
    content: '';
    position: absolute;
    inset: -40%;
    background: conic-gradient(
      from 180deg,
      rgba(96, 165, 250, 0.45),
      rgba(236, 72, 153, 0.6),
      rgba(129, 140, 248, 0.7),
      transparent
    );
    opacity: 0;
    mix-blend-mode: screen;
    transition: opacity var(--transition-med);
  }
  
  .hero__social-icon {
    position: relative;
    z-index: 1;
    font-size: 1.05rem;
  }
  
  .hero__social-link:hover {
    transform: translateY(-2px) scale(1.06);
    border-color: rgba(129, 140, 248, 0.95);
    box-shadow: 0 16px 40px rgba(37, 99, 235, 0.7);
    background: radial-gradient(circle at 10% 0, rgba(15, 23, 42, 0.98), #020617);
  }
  
  .hero__social-link:hover::before {
    opacity: 1;
  }
  
  /* Buttons */
  
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.6rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition:
      background var(--transition-med),
      color var(--transition-med),
      transform var(--transition-fast),
      box-shadow var(--transition-fast),
      border-color var(--transition-fast);
  }
  
  .btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.28), transparent 55%);
    opacity: 0;
    transition: opacity var(--transition-med);
  }
  
  .btn--primary {
    background: linear-gradient(135deg, #4f46e5, #7c3aed, #e11d48);
    color: #f9fafb;
    box-shadow: 0 16px 40px rgba(59, 130, 246, 0.45);
  }
  
  .btn--primary:hover {
    transform: translateY(-1px) translateZ(0);
    box-shadow: 0 22px 50px rgba(59, 130, 246, 0.6);
  }
  
  .btn--ghost {
    background: rgba(15, 23, 42, 0.7);
    color: #e5e7eb;
    border-color: rgba(148, 163, 184, 0.5);
  }
  
  .btn--ghost:hover {
    background: rgba(15, 23, 42, 0.95);
    border-color: rgba(248, 250, 252, 0.8);
  }
  
  .btn--outline {
    background: transparent;
    color: #e5e7eb;
    border-color: rgba(148, 163, 184, 0.6);
  }
  
  .btn--outline:hover {
    background: rgba(15, 23, 42, 0.85);
    border-color: #6366f1;
  }
  
  .btn:hover::before {
    opacity: 1;
  }
  
  /* About */
  
  .about__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2.5rem;
  }
  
  .about__text {
    font-size: 0.97rem;
    color: #e5e7eb;
    line-height: 1.7;
  }
  
  /* Skills */
  
  .skills__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.4rem;
  }
  
  .skill-card {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.9));
    border-radius: var(--radius-lg);
    padding: 1.2rem 1.4rem;
    border: 1px solid var(--border-subtle);
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.85);
    position: relative;
    overflow: hidden;
    transition:
      transform var(--transition-med),
      box-shadow var(--transition-med),
      border-color var(--transition-med),
      background var(--transition-med);
  }
  
  .skill-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 55%);
    opacity: 0;
    mix-blend-mode: screen;
    transition: opacity var(--transition-med);
  }
  
  .skill-card h3 {
    margin: 0 0 0.25rem;
    font-size: 0.98rem;
  }
  
  .skill-card p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--muted);
  }
  
  .skill-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.95);
    border-color: rgba(129, 140, 248, 0.9);
    background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), rgba(15, 23, 42, 0.98));
  }
  
  .skill-card:hover::before {
    opacity: 1;
  }
  
  /* Projects */
  
  .projects__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.7rem;
  }
  
  .project-card {
    perspective: 1100px;
  }
  
  .project-card__inner {
    background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.22), #020617);
    border-radius: 22px;
    padding: 1.5rem 1.6rem 1.4rem;
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: var(--shadow-soft);
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    transform: translateY(0) rotateX(0deg);
    transition:
      transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      box-shadow var(--transition-med),
      border-color var(--transition-med),
      background var(--transition-med);
  }
  
  .project-card__inner::before {
    content: '';
    position: absolute;
    inset: -40%;
    background: conic-gradient(
      from 180deg,
      rgba(129, 140, 248, 0.28),
      transparent,
      rgba(244, 114, 182, 0.4),
      transparent
    );
    opacity: 0;
    mix-blend-mode: screen;
    animation: spin 16s linear infinite;
  }
  
  .project-card__title {
    margin: 0;
    font-size: 1.05rem;
  }
  
  .project-card__description {
    margin: 0;
    font-size: 0.9rem;
    color: #d1d5db;
  }
  
  .project-card__tag {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    font-size: 0.75rem;
    color: #a5b4fc;
    padding: 0.22rem 0.7rem;
    border-radius: 999px;
    background: rgba(55, 65, 81, 0.9);
    border: 1px solid rgba(129, 140, 248, 0.8);
  }
  
  .project-card__actions {
    margin-top: auto;
  }
  
  .project-card__inner:hover {
    transform: translateY(-8px) rotateX(6deg);
    box-shadow: 0 26px 80px rgba(15, 23, 42, 0.98);
    border-color: rgba(129, 140, 248, 0.9);
  }
  
  .project-card__inner:hover::before {
    opacity: 1;
  }
  
  /* Contact */
  
  .contact__grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 2.5rem;
    align-items: flex-start;
  }
  
  .contact__info h3 {
    margin: 0 0 1rem;
    font-size: 1.1rem;
  }
  
  .contact__blurb {
    margin: 0 0 1.4rem;
    font-size: 0.9rem;
    color: var(--muted);
  }
  
  .contact__social-heading {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: #9ca3af;
    margin: 0 0 0.9rem;
  }
  
  .contact__social-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }
  
  .contact__social-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.9rem 0.75rem;
    border-radius: 18px;
    background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.9));
    border: 1px solid rgba(148, 163, 184, 0.45);
    color: #e5e7eb;
    overflow: hidden;
    cursor: pointer;
    text-align: center;
    transition:
      transform var(--transition-med),
      box-shadow var(--transition-med),
      border-color var(--transition-med),
      background var(--transition-med);
  }
  
  .contact__social-card::before {
    content: '';
    position: absolute;
    inset: -35%;
    background: conic-gradient(
      from 180deg,
      rgba(96, 165, 250, 0.5),
      rgba(236, 72, 153, 0.5),
      rgba(129, 140, 248, 0.7),
      transparent
    );
    opacity: 0;
    mix-blend-mode: screen;
    transition: opacity var(--transition-med);
  }
  
  .contact__social-icon {
    position: relative;
    z-index: 1;
    font-size: 1.3rem;
  }
  
  .contact__social-name {
    position: relative;
    z-index: 1;
    font-size: 0.8rem;
    color: var(--muted);
  }
  
  .contact__social-card:hover {
    transform: translateY(-3px) scale(1.04);
    border-color: rgba(129, 140, 248, 0.95);
    box-shadow: 0 20px 55px rgba(15, 23, 42, 0.95);
    background: radial-gradient(circle at top left, rgba(30, 64, 175, 0.35), rgba(15, 23, 42, 0.98));
  }
  
  .contact__social-card:hover::before {
    opacity: 1;
  }
  
  .contact__form {
    background: radial-gradient(circle at top left, rgba(30, 64, 175, 0.35), rgba(15, 23, 42, 0.96));
    border-radius: 22px;
    padding: 2rem 2.1rem;
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-soft);
  }
  
  .contact__field {
    display: grid;
    gap: 0.45rem;
    margin-bottom: 1.15rem;
  }
  
  .contact__field label {
    font-size: 0.85rem;
    color: var(--muted);
  }
  
  .contact__field input,
  .contact__field textarea {
    border-radius: 12px;
    border: 1px solid rgba(75, 85, 99, 0.9);
    background: rgba(15, 23, 42, 0.95);
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
    padding: 0.6rem 0.75rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    resize: vertical;
  }
  
  .contact__field input::placeholder,
  .contact__field textarea::placeholder {
    color: rgba(148, 163, 184, 0.7);
  }
  
  .contact__field input:focus,
  .contact__field textarea:focus {
    border-color: #6366f1;
    background: #020617;
    box-shadow:
      0 0 0 1px rgba(79, 70, 229, 0.7),
      0 0 0 6px rgba(79, 70, 229, 0.15);
  }
  
  .contact__note {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--muted);
  }
  
  /* Footer */
  
  .footer {
    padding: 1.4rem 0 1.6rem;
    border-top: 1px solid rgba(15, 23, 42, 0.9);
    background: #020617;
  }
  
  .footer__content {
    text-align: center;
    font-size: 0.8rem;
    color: var(--muted);
  }
  
  /* Scroll reveal animation */
  
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition:
      opacity 0.7s ease-out,
      transform 0.7s ease-out;
  }
  
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* Utility / Keyframes */
  
  @keyframes spin {
    to {
      transform: rotate(360deg);
    }
  }
  
  /* Responsive Design */
  
  @media (max-width: 960px) {
    .about__grid {
      grid-template-columns: minmax(0, 1fr);
    }
  
    .skills__grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
  
    .projects__grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  
    .contact__grid {
      grid-template-columns: minmax(0, 1fr);
    }
  }
  
  @media (max-width: 720px) {
    .container {
      width: min(100% - 2rem, 720px);
    }
  
    .hero {
      padding-top: 1.5rem;
    }
  
    .skills__grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  
    .projects__grid {
      grid-template-columns: minmax(0, 1fr);
    }
  
    .contact__form {
      padding: 1.4rem 1.5rem;
    }
  
    /* Mobile nav */
    .nav__toggle {
      display: block;
    }
  
    .nav__links {
      position: absolute;
      inset-inline: 0;
      top: 100%;
      margin-top: 0.35rem;
      flex-direction: column;
      gap: 0.5rem;
      padding: 0.8rem 1.1rem 1rem;
      background: rgba(2, 6, 23, 0.98);
      border-bottom: 1px solid rgba(148, 163, 184, 0.3);
      transform-origin: top;
      transform: scaleY(0.7);
      opacity: 0;
      pointer-events: none;
      transition:
        opacity var(--transition-med),
        transform var(--transition-med);
    }
  
    .nav__links--open {
      opacity: 1;
      pointer-events: auto;
      transform: scaleY(1);
    }
  }
  
  @media (max-width: 480px) {
    .hero__actions {
      flex-direction: column;
      align-items: stretch;
    }
  
    .skills__grid {
      grid-template-columns: minmax(0, 1fr);
    }
  
    .about__text {
      font-size: 0.94rem;
    }
  }