@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Chakra+Petch:wght@500;600;700&display=swap");

:root {
  color-scheme: dark;

  --font-body: "Space Grotesk", "Segoe UI", sans-serif;
  --font-display: "Chakra Petch", "Space Grotesk", sans-serif;

  --page-bg: #05080f;
  --page-bg-accent: rgba(76, 255, 122, 0.16);
  --surface: rgba(11, 16, 26, 0.9);
  --surface-strong: #0d1220;
  --surface-muted: #121b2e;
  --surface-accent: rgba(76, 255, 122, 0.12);

  --text: #e8fff0;
  --text-muted: #a9c6b3;
  --text-subtle: #829b8e;
  --text-on-accent: #06120a;

  --border: rgba(127, 255, 160, 0.18);
  --border-strong: rgba(127, 255, 160, 0.32);

  --accent-rgb: 76, 255, 122;
  --accent: rgb(var(--accent-rgb));
  --accent-soft: rgba(var(--accent-rgb), 0.2);
  --amber: #ffbf3c;

  --shadow-sm: 0 12px 28px rgba(0, 0, 0, 0.42);
  --shadow-md: 0 28px 68px rgba(0, 0, 0, 0.56);

  --radius-sm: 1.2rem;
  --radius-md: 2rem;
  --radius-lg: 2.8rem;
  --radius-pill: 999px;

  --space-2: 0.8rem;
  --space-3: 1.2rem;
  --space-4: 1.6rem;
  --space-5: 2.4rem;
  --space-6: 3.2rem;
  --space-7: 4rem;
  --space-8: 5.6rem;

  --panel-padding: 2rem;
  --section-gap: 2rem;

  --container-width: 112rem;
  --content-width: min(var(--container-width), calc(100vw - 3.2rem));
  --header-height: 6.4rem;
}

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

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
  background: var(--page-bg);
}

body {
  min-height: 100%;
  overflow-x: hidden;
  font-family: var(--font-body);
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(120rem 70rem at 8% -10%, rgba(var(--accent-rgb), 0.2), transparent 45%),
    radial-gradient(80rem 50rem at 92% 12%, rgba(255, 191, 60, 0.12), transparent 50%),
    linear-gradient(180deg, #070b14 0%, var(--page-bg) 55%, #05080f 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(127, 255, 160, 0.06) 1px, transparent 1px) 0 0 / 100% 3.2rem,
    linear-gradient(90deg, rgba(127, 255, 160, 0.05) 1px, transparent 1px) 0 0 / 3.2rem 100%;
  mask-image: radial-gradient(circle at 50% 30%, black 20%, transparent 85%);
  opacity: 0.32;
  z-index: -1;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

li {
  list-style: none;
}

section {
  scroll-margin-top: 9rem;
}

input:focus,
button:focus,
a:focus,
textarea:focus {
  outline: 2px solid rgba(var(--accent-rgb), 0.35);
  outline-offset: 3px;
}

.main-container {
  width: var(--content-width);
  margin: 0 auto;
}

.sec-pad {
  padding: var(--space-7) 0;
}

.heading.heading-sec {
  display: grid;
  gap: var(--space-3);
}

.heading-primary,
.top-heading,
.sub-heading,
.heading-sec__main {
  color: var(--text);
  font-family: var(--font-display);
  line-height: 1.02;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.about__content-title,
.projects__row-content-title,
.project-details__content-title,
#features-title,
#skills-title {
  color: var(--text);
  font-family: var(--font-display);
  line-height: 1.1;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.heading-primary {
  font-size: clamp(3.6rem, 9vw, 6rem);
  font-weight: 800;
  text-align: center;
  background: linear-gradient(180deg, #f3fff7 0%, #7effa6 62%, #48ff7a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 2rem rgba(var(--accent-rgb), 0.28);
}

.heading-sec__main {
  display: block;
  font-size: clamp(2.4rem, 4.5vw, 3.4rem);
  font-weight: 800;
  text-align: center;
  color: #bfffd3;
}

.heading-sec__sub {
  display: block;
  width: min(64rem, 100%);
  margin: 0 auto;
  text-align: center;
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--text-muted);
}

.text-primary,
.project-text,
.features-list,
.skills-list,
.projects__row-content-desc,
.about__content-details-para {
  font-size: 1.6rem;
  color: var(--text-muted);
}

.blue-highlight,
.app-features-section span,
.learning-outcomes-section span {
  color: var(--amber);
}

.header {
  position: fixed;
  top: 0.8rem;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100vw - 1.6rem);
  max-width: 118rem;
  min-height: var(--header-height);
  z-index: 1000;
  border: 1px solid var(--border-strong);
  border-radius: 1.4rem;
  background: linear-gradient(180deg, rgba(10, 16, 28, 0.92), rgba(7, 12, 22, 0.96));
  backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(127, 255, 160, 0.08);
}

.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 0 1.4rem;
  gap: 1.2rem;
}

.header__logo-container,
.header__main {
  display: flex;
  align-items: center;
}

.header__logo-container {
  min-width: 0;
  gap: 1rem;
  cursor: pointer;
}

.header__logo-img-cont {
  width: 4.2rem;
  height: 4.2rem;
  overflow: hidden;
  flex: 0 0 auto;
  border: 1px solid rgba(127, 255, 160, 0.55);
  border-radius: 0.8rem;
  box-shadow: 0 0 1.2rem rgba(var(--accent-rgb), 0.2);
}

.header__logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.header__logo-sub {
  min-width: 0;
  font-family: var(--font-body);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #c7ffd8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header__links {
  display: none;
}

.header__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.8rem;
  padding: 0 1.5rem;
  border: 1px solid rgba(127, 255, 160, 0.18);
  border-radius: var(--radius-pill);
  color: #9cd8aa;
  font-size: 1.3rem;
  font-weight: 600;
  background: rgba(8, 18, 28, 0.56);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.header__link.active {
  color: #eaffef;
  border-color: rgba(127, 255, 160, 0.45);
  background: rgba(76, 255, 122, 0.15);
  box-shadow: inset 0 0 0 1px rgba(127, 255, 160, 0.14);
}

.header__main-ham-menu-cont {
  display: block;
  width: 2.8rem;
  flex: 0 0 auto;
  cursor: pointer;
}

.header__main-ham-menu,
.header__main-ham-menu-close {
  width: 100%;
  opacity: 0.95;
  filter: brightness(0) saturate(100%) invert(85%) sepia(57%) saturate(518%) hue-rotate(56deg) brightness(101%) contrast(102%);
}

.header__sm-menu {
  position: absolute;
  top: calc(100% + 0.8rem);
  left: 0;
  width: 100%;
  overflow: hidden;
  border: 1px solid rgba(127, 255, 160, 0.28);
  border-radius: 1rem;
  background: linear-gradient(180deg, rgba(10, 16, 28, 0.98), rgba(7, 12, 22, 0.98));
  box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(127, 255, 160, 0.07);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.header__sm-menu--active {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.header__sm-menu-link a {
  display: block;
  padding: 1.6rem;
  border-bottom: 1px solid rgba(127, 255, 160, 0.14);
  text-align: right;
  color: #b1ddbc;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.header__sm-menu-link:last-child a {
  border-bottom: 0;
}

/* ── Hover-capable devices only ── */
@media (hover: hover) {
  .header__link:hover {
    color: #eefff2;
    border-color: rgba(127, 255, 160, 0.55);
    background: rgba(76, 255, 122, 0.16);
    box-shadow: 0 0 1.2rem rgba(var(--accent-rgb), 0.22);
  }

  .header__sm-menu-link a:hover {
    color: #ebfff0;
    background: rgba(76, 255, 122, 0.12);
  }

  .projects__row {
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  }

  .projects__row:hover {
    transform: translateY(-1px);
    border-color: rgba(127, 255, 160, 0.44);
    box-shadow: var(--shadow-sm);
  }

  .btn:hover,
  .alt-style:hover,
  .btn--bg:hover,
  .btn--theme-inv:hover,
  .contact-btn:hover {
    transform: none;
    box-shadow: none;
  }

  /* Ghost hover — soft accent fill, keep accent text */
  .btn:hover,
  .alt-style:hover {
    background: rgba(var(--accent-rgb), 0.12);
    border-color: rgba(127, 255, 160, 0.64);
    color: #f0fff4;
  }

  /* Filled hover — darken */
  .btn--bg:hover,
  .btn--theme-inv:hover,
  .contact-btn:hover {
    background: #47d971;
    border-color: #47d971;
    color: #07140d;
  }
}

/* ── Mobile: centre layout (below the 2-col breakpoint) ── */
@media (max-width: 47.99em) {
  .projects__row {
    justify-items: center;
    text-align: center;
  }

  .projects__row-img-cont {
    width: 100%;
    max-width: 48rem;
    margin: 0 auto;
  }

  .projects__row-content {
    text-align: center;
  }

  .about__content-main,
  .about__content-skills {
    text-align: center;
  }

  .about__content-main .btn--bg,
  .about__content-main .btn,
  .about__content-main .alt-style {
    justify-self: center;
  }

  .skills {
    justify-content: center;
  }

  .project-details__desc,
  .project-details__tools-used {
    text-align: center;
  }

  .project-details__links {
    justify-content: center;
  }
}

.d-none {
  display: none;
}

.home-hero,
.project-cs-hero {
  position: relative;
  padding-top: 10.4rem;
  padding-bottom: var(--space-7);
}

.home-hero {
  padding-bottom: var(--space-6);
}

.home-hero__content,
.project-cs-hero__content {
  width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-7) var(--panel-padding);
  border: 1px solid var(--border-strong);
  border-radius: 1.6rem;
  background: linear-gradient(160deg, rgba(12, 18, 31, 0.94), rgba(9, 14, 24, 0.96));
  box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(127, 255, 160, 0.08);
}

.home-hero__content {
  padding: var(--space-6) var(--panel-padding);
}

#main-heading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: var(--space-3);
  text-align: center;
}

.top-heading,
.sub-heading {
  font-size: clamp(3rem, 7vw, 5.2rem);
  font-weight: 800;
}

.home-hero__content .text-primary,
.project-cs-hero__info .text-primary {
  width: min(62rem, 100%);
  margin: 0 auto;
  text-align: center;
}

.project-cs-hero__cta,
.btn-container {
  margin-top: var(--space-5);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.btn-container .contact-btn {
  width: auto;
}

/* ── Buttons ── */
.btn,
.alt-style,
.btn--bg,
.btn--theme-inv,
.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 4.4rem;
  padding: 0 2.4rem;
  border: 1px solid transparent;
  border-radius: 0.6rem;
  font-family: var(--font-body);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

/* Ghost variant — accent outline + accent text */
.btn,
.alt-style {
  background: transparent;
  border-color: rgba(127, 255, 160, 0.48);
  color: #b9ffca;
}

/* Filled variant — solid accent */
.btn--bg,
.btn--theme-inv,
.contact-btn {
  background: #56ff86;
  border-color: #56ff86;
  color: var(--text-on-accent);
}

.projects .main-container,
.about .main-container,
.project-details .main-container {
  display: grid;
  gap: var(--section-gap);
}

.projects__row-content-link {
  display: block;
}

.projects__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: start;
  padding: var(--panel-padding);
  border: 1px solid var(--border-strong);
  border-radius: 1.4rem;
  background: linear-gradient(165deg, rgba(11, 17, 29, 0.95), rgba(9, 14, 24, 0.96));
  box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(127, 255, 160, 0.06);
}

.projects__row-img-cont {
  overflow: hidden;
  border: 1px solid rgba(127, 255, 160, 0.22);
  border-radius: 0.9rem;
  background: rgba(16, 25, 42, 0.9);
  aspect-ratio: 16 / 9;
  max-height: 22rem;
}

.projects__row-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.projects__row-content {
  display: grid;
  gap: var(--space-3);
}

.projects__row-content-title {
  font-size: 2rem;
  font-weight: 800;
}

.about__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.about__content-main,
.about__content-skills,
.project-details__content-main,
.project-details__showcase-img-cont {
  border: 1px solid var(--border-strong);
  border-radius: 1.4rem;
  background: linear-gradient(170deg, rgba(11, 17, 29, 0.94), rgba(9, 14, 24, 0.96));
  box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(127, 255, 160, 0.06);
}

.about__content-main,
.about__content-skills,
.project-details__content-main {
  padding: var(--panel-padding);
}

.about__content-main,
.about__content-skills,
.project-details__content-main,
.contact .main-container {
  display: grid;
  gap: var(--space-4);
}

.about__content-details,
.project-details__desc,
.app-features-section,
.learning-outcomes-section,
.project-details__tools-used,
.project-details__links {
  display: grid;
  gap: var(--space-3);
}

.project-details__tools-used,
.project-details__links {
  padding: var(--space-3);
  border: 1px solid rgba(127, 255, 160, 0.24);
  border-radius: 1rem;
  background: rgba(18, 26, 44, 0.86);
}

.project-details__tools-used .skills {
  margin-top: var(--space-2);
}

.project-details__links .project-details__content-title {
  margin-bottom: 0.4rem;
}

.about__content-title,
.project-details__content-title,
#features-title,
#skills-title {
  font-size: 1.8rem;
  font-weight: 700;
}

.features-list,
.skills-list {
  display: grid;
  gap: var(--space-2);
}

.features-list li,
.skills-list li {
  padding: 1.3rem 1.5rem;
  border: 1px solid rgba(127, 255, 160, 0.2);
  border-radius: 0.9rem;
  background: rgba(18, 26, 44, 0.82);
}

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skills__skill {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  min-height: 4rem;
  max-width: 100%;
  padding: 0.9rem 1.3rem;
  border: 1px solid rgba(127, 255, 160, 0.3);
  border-radius: 0.8rem;
  background: rgba(var(--accent-rgb), 0.12);
  color: #dbffe5;
  font-size: 1.3rem;
  font-weight: 600;
}

.project-details__content {
  width: 100%;
  display: grid;
  gap: var(--space-4);
}

.project-details__content-main > * {
  min-width: 0;
}

.project-details__content-main > * + * {
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
}

.project-details__showcase-img-cont {
  padding: var(--space-2);
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
}

.project-details__showcase-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: top;
  border-radius: 1.4rem;
}

.project-details__links .btn,
.project-details__links .alt-style,
.project-details__links .btn--theme-inv {
  width: 100%;
}

.about.sec-pad {
  padding-bottom: var(--space-4);
}

.contact.sec-pad {
  padding-top: var(--space-4);
  padding-bottom: var(--space-5);
}

.contact .main-container {
  padding: var(--space-5) var(--space-5);
  border: 1px solid var(--border-strong);
  border-radius: 1.4rem;
  background: linear-gradient(165deg, rgba(11, 17, 29, 0.94), rgba(9, 14, 24, 0.96));
  box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(127, 255, 160, 0.06);
  text-align: center;
}

.contact .heading-sec__main {
  margin-bottom: var(--space-2);
}

.contact .heading-sec__sub {
  margin-bottom: var(--space-4);
}

.contact .btn-container {
  margin-top: var(--space-2);
}

.main-footer {
  margin-top: var(--space-7);
  padding: var(--space-5) 0 var(--space-7);
  border-top: 1px solid rgba(127, 255, 160, 0.18);
}

.main-footer__upper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
}

.main-footer__upper a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.6rem;
  height: 4.6rem;
  border: 1px solid rgba(127, 255, 160, 0.3);
  border-radius: 0.9rem;
  background: rgba(11, 17, 29, 0.88);
  box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(127, 255, 160, 0.08);
}

.main-footer__upper img {
  width: 2.2rem;
  height: 2.2rem;
  object-fit: contain;
}

.home-hero__mouse-scroll-cont {
  display: none;
}

.mouse {
  position: relative;
  width: 2.8rem;
  height: 4.8rem;
  border: 1px solid rgba(127, 255, 160, 0.45);
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, rgba(127, 255, 160, 0.06), rgba(127, 255, 160, 0.01));
  box-shadow: inset 0 0 0 1px rgba(127, 255, 160, 0.08), 0 0 1.2rem rgba(var(--accent-rgb), 0.08);
  animation: mouseFloat 2.6s ease-in-out infinite;
}

.mouse:before {
  content: "";
  position: absolute;
  top: 0.9rem;
  left: 50%;
  width: 0.45rem;
  height: 0.95rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, #d8ffe2 0%, var(--accent) 100%);
  box-shadow: 0 0 1rem rgba(var(--accent-rgb), 0.35);
  transform: translateX(-50%);
  animation: wheelTrack 2s cubic-bezier(0.22, 1, 0.36, 1) infinite;
}

@keyframes mouseFloat {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-0.4rem);
  }
}

@keyframes wheelTrack {
  0% {
    opacity: 0;
    transform: translate(-50%, 0) scaleY(0.8);
  }

  18% {
    opacity: 1;
    transform: translate(-50%, 0.2rem) scaleY(1);
  }

  58% {
    opacity: 1;
    transform: translate(-50%, 1.45rem) scaleY(1);
  }

  82% {
    opacity: 0;
    transform: translate(-50%, 2.15rem) scaleY(0.82);
  }

  100% {
    opacity: 0;
    transform: translate(-50%, 0) scaleY(0.8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .mouse,
  .mouse:before {
    animation: none;
  }
}

/* Buttons inside panels are always auto-width */
.about__content-main .btn,
.about__content-main .alt-style,
.about__content-main .btn--bg,
.about__content-skills .btn {
  width: auto;
}

@media (min-width: 48em) {
  .about__content-main .btn,
  .about__content-main .alt-style,
  .about__content-main .btn--bg,
  .about__content-skills .btn {
    justify-self: start;
  }
}

@media (min-width: 36em) {
  .btn,
  .alt-style,
  .btn--bg,
  .btn--theme-inv,
  .contact-btn,
  .project-details__links .btn,
  .project-details__links .alt-style,
  .project-details__links .btn--theme-inv {
    width: auto;
  }

  .project-details__links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
  }

  .project-details__links .project-details__content-title {
    width: 100%;
  }
}

@media (min-width: 48em) {
  :root {
    --header-height: 7rem;
    --content-width: min(var(--container-width), calc(100vw - 4.8rem));
    --panel-padding: 2.4rem;
    --section-gap: 2.8rem;
  }

  .sec-pad {
    padding: 5.6rem 0;
  }

  .header {
    top: 1.2rem;
    width: min(118rem, calc(100vw - 2.4rem));
  }

  .header__content {
    padding: 0 2rem;
  }

  .header__main-ham-menu-cont {
    display: none;
  }

  .header__links {
    display: flex;
    align-items: center;
    gap: 0.6rem;
  }

  .home-hero,
  .project-cs-hero {
    padding-top: 13rem;
    padding-bottom: 6rem;
  }

  .projects__row {
    grid-template-columns: 18rem 1fr;
    gap: var(--space-5);
    align-items: center;
  }

  .projects__row-img-cont {
    aspect-ratio: 3 / 2;
    max-height: none;
  }

  .about__content {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .project-details__showcase-img {
    aspect-ratio: 16 / 9;
  }

  .home-hero__mouse-scroll-cont {
    display: block;
    position: absolute;
    left: 50%;
    bottom: 1.6rem;
    transform: translateX(-50%);
  }
}

@media (min-width: 64em) {
  :root {
    --panel-padding: 3.2rem;
  }

  .sec-pad {
    padding: 6.4rem 0;
  }

  .projects__row {
    grid-template-columns: 22rem 1fr;
  }
}