/* ============================================================
   css/style.css
   Nicholas Stewart Portfolio
   ============================================================ */


/* ── 1. Design Tokens ─────────────────────────────────────── */

:root {
  /* Colors */
  --clr-indigo:      #2b3185;
  --clr-indigo-deep: #352c6d;
  --clr-indigo-dark: #211650;
  --clr-accent:      #f7b32b;
  --clr-light:       #f4f4f4;
  --clr-dark:        #1a1615;
  --clr-icy:         #e3ece7;
  --clr-text-muted:  rgba(255, 255, 255, 0.85);

  /* Typography */
  --ff-primary:   "Source Sans Pro", sans-serif;
  --ff-secondary: "Source Code Pro", monospace;
  --fw-reg:  300;
  --fw-bold: 900;

  --fs-body: 1rem;
  --fs-h1:   2.75rem;
  --fs-h2:   2rem;
  --fs-h3:   1.25rem;

  /* Misc */
  --bs: 0.25em 0.25em 0.75em rgba(0, 0, 0, 0.25),
        0.125em 0.125em 0.25em rgba(0, 0, 0, 0.15);
  --radius: 0.5rem;
  --transition: 250ms ease-in-out;
}

@media (min-width: 800px) {
  :root {
    --fs-h1: 3.5rem;
    --fs-h2: 2.5rem;
    --fs-h3: 1.5rem;
  }
}


/* ── 2. Reset & Base ──────────────────────────────────────── */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--ff-primary);
  font-size: var(--fs-body);
  font-weight: var(--fw-reg);
  background: var(--clr-light);
  color: var(--clr-dark);
  margin: 0;
  overflow-x: hidden;
}

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

h1, h2, h3 {
  line-height: 1.1;
  margin: 0;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

strong { font-weight: var(--fw-bold); }

p { margin: 0 0 1rem; }


/* ── 3. Layout Utilities ──────────────────────────────────── */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
}

.section__eyebrow {
  font-family: var(--ff-secondary);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin: 0 0 0.4rem;
}

.section__title {
  font-weight: var(--fw-bold);
  margin-bottom: 2rem;
}


/* ── 4. Buttons ───────────────────────────────────────────── */

.btn {
  display: inline-block;
  padding: 0.75em 2em;
  font-family: var(--ff-primary);
  font-size: 0.9rem;
  font-weight: var(--fw-bold);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn--primary {
  background: var(--clr-accent);
  color: var(--clr-dark);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(247, 179, 43, 0.4);
}

.btn--outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 0.5em 1.25em;
  font-size: 0.8rem;
  background: var(--clr-accent);
  color: var(--clr-dark);
}

.btn--sm:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(247, 179, 43, 0.4);
}


/* ── 5. Header & Nav ──────────────────────────────────────── */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  padding: 1rem 0;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: var(--clr-indigo-dark);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: inline-flex;
  text-decoration: none;
  transition: transform var(--transition), opacity var(--transition);
}

.header__logo:hover {
  transform: scale(1.08);
  opacity: 0.9;
}

/* Desktop nav — hidden on mobile */
.nav--desktop {
  display: none;
}

@media (min-width: 768px) {
  .nav--desktop {
    display: block;
  }

  .nav-toggle {
    display: none;
  }
}

.nav--desktop ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav--desktop .nav__link {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.nav--desktop .nav__link:hover {
  color: var(--clr-accent);
}

/* Hamburger button */
.nav-toggle {
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 0.5em;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-toggle:focus {
  outline: 3px outset var(--clr-accent);
  outline-offset: 3px;
}

.hamburger {
  display: block;
  position: relative;
  width: 2em;
  height: 3px;
  background: var(--clr-accent);
  border-radius: 1em;
  transition: transform var(--transition);
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--clr-accent);
  border-radius: 1em;
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger::before { top: 6px; }
.hamburger::after  { bottom: 6px; }

/* Mobile nav overlay */
.nav--mobile {
  position: fixed;
  inset: 0;
  background: var(--clr-indigo-dark);
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateX(100%);
  transition: transform 300ms cubic-bezier(0.5, 0, 0.5, 1);
}

.nav--mobile .nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
  margin: 0;
  padding: 0;
}

.nav--mobile .nav__link {
  color: #fff;
  text-decoration: none;
  font-size: 1.75rem;
  font-weight: var(--fw-bold);
  transition: color var(--transition);
}

.nav--mobile .nav__link:hover {
  color: var(--clr-accent);
}

/* Open states */
.nav-open .nav--mobile {
  transform: translateX(0);
}

.nav-open .hamburger {
  transform: rotate(0.625turn);
}

.nav-open .hamburger::before {
  transform: rotate(90deg) translateX(-6px);
}

.nav-open .hamburger::after {
  opacity: 0;
}


/* ── 6. Hero ──────────────────────────────────────────────── */

.hero {
  min-height: 100vh;
  background: linear-gradient(
    135deg,
    var(--clr-indigo-dark) 0%,
    var(--clr-indigo) 50%,
    var(--clr-indigo-deep) 100%
  );
  color: #fff;
  display: flex;
  flex-direction: column;
  position: relative;
  padding-top: 80px;
}

.hero__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 2rem;
  padding-top: 2rem;
  padding-bottom: 8rem; /* room for wave */
}

@media (min-width: 768px) {
  .hero__content {
    flex-direction: row;
    text-align: left;
    gap: 4rem;
  }
}

.hero__text {
  flex: 1;
}

.hero__name {
  font-size: var(--fs-h1);
  font-weight: var(--fw-bold);
  line-height: 1.05;
  margin-bottom: 0.5rem;
}

.hero__role {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--clr-text-muted);
  margin: 0.75rem 0 1.5rem;
  min-height: 2.2em;
  font-family: var(--ff-secondary);
}

.typewriter-cursor {
  display: inline-block;
  color: var(--clr-accent);
  animation: blink 0.8s step-end infinite;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

@media (min-width: 768px) {
  .hero__cta {
    justify-content: flex-start;
  }
}

/* Circular headshot */
.hero__image-wrap {
  flex-shrink: 0;
}

.hero__img {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--clr-accent);
  box-shadow: 0 0 0 8px rgba(247, 179, 43, 0.2), var(--bs);
}

@media (min-width: 768px) {
  .hero__img {
    width: 300px;
    height: 300px;
  }
}

/* Wave divider */
.wave-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.waves {
  display: block;
  width: 100%;
  height: 120px;
  min-height: 60px;
}

@media (max-width: 768px) {
  .waves { height: 60px; }
}


/* ── 7. About ─────────────────────────────────────────────── */

.about {
  background: var(--clr-light);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .about__inner {
    grid-template-columns: 1fr 280px;
  }
}

.about__text p {
  color: #444;
  line-height: 1.7;
}

.about__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  background: var(--clr-indigo);
  color: #fff;
  font-size: 0.8rem;
  font-weight: var(--fw-bold);
  padding: 0.4em 0.9em;
  border-radius: 2em;
}

.about__img {
  width: 100%;
  max-width: 280px;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--bs);
  margin: 0 auto;
}


/* ── 8. Skills ────────────────────────────────────────────── */

.skills {
  background: linear-gradient(
    135deg,
    var(--clr-indigo-dark),
    var(--clr-indigo),
    var(--clr-indigo-deep)
  );
  color: #fff;
}

.skills .section__title {
  color: #fff;
}

.skills__groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
}

.skill-group__title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--clr-accent);
  margin-bottom: 0.75rem;
}

.skill-group__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Pills */
.pill {
  background: rgba(255, 255, 255, 0.1);
  color: var(--clr-icy);
  font-family: var(--ff-secondary);
  font-size: 0.8rem;
  padding: 0.3em 0.8em;
  border-radius: 2em;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.pill--sm {
  font-size: 0.7rem;
  padding: 0.2em 0.6em;
}


/* ── 9. Experience ────────────────────────────────────────── */

.experience {
  background: var(--clr-light);
}

.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.25rem;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-indigo), var(--clr-accent));
}

.timeline__item {
  position: relative;
  margin-bottom: 3rem;
}

.timeline__item:last-child {
  margin-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: -2.35rem;
  top: 0.3rem;
  width: 12px;
  height: 12px;
  background: var(--clr-accent);
  border-radius: 50%;
  border: 2px solid var(--clr-indigo);
}

.timeline__date {
  display: block;
  font-family: var(--ff-secondary);
  font-size: 0.8rem;
  color: var(--clr-accent);
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.timeline__role {
  font-size: 1.2rem;
  font-weight: var(--fw-bold);
  color: var(--clr-dark);
  margin: 0 0 0.15rem;
}

.timeline__company {
  font-size: 0.95rem;
  color: var(--clr-indigo);
  font-weight: var(--fw-bold);
  margin: 0 0 0.5rem;
}

.timeline__content p:last-child {
  color: #555;
  line-height: 1.6;
  margin: 0;
}


/* ── 10. Services ─────────────────────────────────────────── */

.services {
  background: linear-gradient(
    145deg,
    var(--clr-indigo-dark),
    var(--clr-indigo-deep),
    var(--clr-indigo)
  );
  color: #fff;
}

.services .section__title {
  color: #fff;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.service-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  transition: transform var(--transition), background var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.1);
}

.service-card__icon {
  font-size: 2.5rem;
  color: var(--clr-accent);
  margin-bottom: 1rem;
}

.service-card__title {
  font-weight: var(--fw-bold);
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin: 0;
}


/* ── 11. Projects ─────────────────────────────────────────── */

.projects {
  background: var(--clr-light);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--bs);
}

.project-card__img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 400ms ease;
}

.project-card:hover .project-card__img {
  transform: scale(1.05);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(33, 22, 80, 0.97) 0%,
    rgba(43, 49, 133, 0.93) 100%
  );
  color: #fff;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.75rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 300ms ease, transform 300ms ease;
}

.project-card:hover .project-card__overlay {
  opacity: 1;
  transform: translateY(0);
}

.project-card__title {
  font-size: 1.1rem;
  font-weight: var(--fw-bold);
  margin: 0;
}

.project-card__desc {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
  margin: 0;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}


/* ── 12. Footer ───────────────────────────────────────────── */

.footer {
  background: #111;
  color: var(--clr-accent);
  text-align: center;
  padding: 2rem 1.5rem;
}

.footer__link {
  display: block;
  color: inherit;
  font-weight: var(--fw-bold);
  font-size: 1rem;
  text-decoration: none;
  margin-bottom: 0.5rem;
}

.footer__link:hover {
  text-decoration: underline;
  opacity: 0.8;
}

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

.social-list {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 1rem 0 0;
  padding: 0;
}

.social-list__link {
  font-size: 1.4rem;
  padding: 0.4em;
  transition: opacity var(--transition);
}

.social-list__link:hover {
  opacity: 0.7;
}


/* ── 13. Animations ───────────────────────────────────────── */

@keyframes blink {
  50% { opacity: 0; }
}

@keyframes move-forever {
  0%   { transform: translate3d(-90px, 0, 0); }
  100% { transform: translate3d(85px, 0, 0); }
}

.parallax > use {
  animation: move-forever 25s cubic-bezier(0.55, 0.5, 0.45, 0.5) infinite;
}

.parallax > use:nth-child(1) { animation-delay: -2s; animation-duration: 7s;  }
.parallax > use:nth-child(2) { animation-delay: -3s; animation-duration: 10s; }
.parallax > use:nth-child(3) { animation-delay: -4s; animation-duration: 13s; }
.parallax > use:nth-child(4) { animation-delay: -5s; animation-duration: 20s; }