/* ============================================
   DESIGN SYSTEM — John Mc Garvey Portfolio
   Inter + Fraunces · Warm Palette · 8pt Grid
   ============================================ */

/* --- Custom Properties --- */
:root {
  /* Colours */
  --color-terracotta:       #C46A4A;
  --color-terracotta-dark:  #A8563A;
  --color-terracotta-tint:  #FFF0E8;
  --color-olive-grey:       #8A8F7A;
  --color-cream:            #FFF7ED;
  --color-sand:             #E8DCC2;
  --color-ink-brown:        #3B2F2F;
  --color-white:            #FFFFFF;

  /* Typography — families */
  --font-heading: 'Fraunces', serif;
  --font-body:    'Inter', sans-serif;

  /* Typography — sizes */
  --text-h1:       48px;
  --text-h2:       38px;
  --text-h3:       30px;
  --text-h4:       24px;
  --text-body-lg:  20px;
  --text-body:     16px;
  --text-small:    14px;
  --text-micro:    12px;

  /* Typography — line-heights */
  --lh-h1:       1.1;
  --lh-h2:       1.15;
  --lh-h3:       1.2;
  --lh-h4:       1.25;
  --lh-body-lg:  1.5;
  --lh-body:     1.6;
  --lh-small:    1.5;
  --lh-micro:    1.4;

  /* Typography — letter-spacing */
  --ls-heading:  -0.01em;
  --ls-body:      0;
  --ls-button:    0.01em;

  /* Spacing (8pt grid) */
  --space-xs:   8px;
  --space-sm:  16px;
  --space-md:  24px;
  --space-lg:  32px;
  --space-xl:  48px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Layout */
  --max-width:       1200px;
  --section-padding:  96px;
  --card-padding:     32px;
  --grid-gutter:      24px;

  /* Borders & Shadows */
  --radius-sm:  8px;
  --radius-md: 12px;
  --shadow-soft:   0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.10);

  /* Transitions */
  --transition-fast:   0.2s ease;
  --transition-medium: 0.35s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: var(--lh-body);
  letter-spacing: var(--ls-body);
  color: var(--color-ink-brown);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

ul, ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  letter-spacing: var(--ls-heading);
  color: var(--color-ink-brown);
}

h1 {
  font-size: var(--text-h1);
  font-weight: 700;
  line-height: var(--lh-h1);
}

h2 {
  font-size: var(--text-h2);
  font-weight: 700;
  line-height: var(--lh-h2);
}

h3 {
  font-size: var(--text-h3);
  font-weight: 600;
  line-height: var(--lh-h3);
}

h4 {
  font-size: var(--text-h4);
  font-weight: 600;
  line-height: var(--lh-h4);
}

.text-lg {
  font-size: var(--text-body-lg);
  line-height: var(--lh-body-lg);
}

.text-sm {
  font-size: var(--text-small);
  line-height: var(--lh-small);
}

.text-micro {
  font-size: var(--text-micro);
  line-height: var(--lh-micro);
}

.text-secondary {
  color: var(--color-olive-grey);
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--section-padding) 0;
}

.section--cream {
  background-color: var(--color-cream);
}

.section--sand {
  background-color: var(--color-sand);
}

.section--tint {
  background-color: var(--color-terracotta-tint);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-small);
  letter-spacing: var(--ls-button);
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast),
              transform var(--transition-fast);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background-color: var(--color-terracotta);
  color: var(--color-cream);
}

.btn--primary:hover {
  background-color: var(--color-terracotta-dark);
}

.btn--secondary {
  background-color: var(--color-cream);
  color: var(--color-ink-brown);
  border: 1.5px solid var(--color-olive-grey);
}

.btn--secondary:hover {
  background-color: var(--color-sand);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-cream);
  transition: box-shadow var(--transition-fast);
}

.nav--scrolled {
  box-shadow: var(--shadow-medium);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-h4);
  letter-spacing: var(--ls-heading);
  color: var(--color-ink-brown);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-weight: 500;
  font-size: var(--text-small);
  color: var(--color-ink-brown);
  position: relative;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-terracotta);
  transition: width var(--transition-medium);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-terracotta);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__cta {
  margin-left: var(--space-sm);
}

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-xs);
  cursor: pointer;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-ink-brown);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav__hamburger--open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger--open span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger--open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero {
  padding-top: calc(72px + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  background-color: var(--color-cream);
}

.hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  gap: var(--space-lg);
  align-items: end;
}

.hero__content {
  max-width: 720px;
}

.hero__image-wrap {
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
}

.hero__image {
  width: 100%;
  max-width: 340px;
  max-height: 520px;
  object-fit: contain;
}

.hero__eyebrow {
  font-weight: 500;
  font-size: var(--text-small);
  color: var(--color-terracotta);
  margin-bottom: var(--space-sm);
  letter-spacing: var(--ls-button);
  text-transform: uppercase;
}

.hero__title {
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: var(--text-body-lg);
  line-height: var(--lh-body-lg);
  color: var(--color-olive-grey);
  margin-bottom: var(--space-xl);
  max-width: 600px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* --- Portfolio Section --- */
.portfolio {
  background-color: var(--color-sand);
}

.portfolio__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.portfolio__header h2 {
  margin-bottom: var(--space-sm);
}

.portfolio__header p {
  color: var(--color-olive-grey);
  max-width: 560px;
  margin: 0 auto;
}

/* Filter tabs */
.portfolio__filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
}

.filter-btn {
  font-weight: 500;
  font-size: var(--text-small);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  color: var(--color-olive-grey);
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
}

.filter-btn:hover,
.filter-btn--active {
  background-color: var(--color-terracotta);
  color: var(--color-cream);
}

/* Project grid */
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gutter);
}

.project-card {
  background-color: var(--color-cream);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-medium),
              box-shadow var(--transition-medium);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.project-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--color-sand);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.project-card__image svg {
  width: 48px;
  height: 48px;
  opacity: 0.3;
}

.project-card__body {
  padding: var(--card-padding);
}

.project-card__title {
  font-size: var(--text-h4);
  margin-bottom: var(--space-xs);
}

.project-card__description {
  color: var(--color-olive-grey);
  margin-bottom: var(--space-sm);
  font-size: var(--text-small);
  line-height: var(--lh-small);
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.tag {
  font-size: var(--text-micro);
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 20px;
  background-color: var(--color-terracotta-tint);
  color: var(--color-terracotta);
}

.project-card__link {
  font-weight: 600;
  font-size: var(--text-small);
  color: var(--color-terracotta);
  letter-spacing: var(--ls-button);
  transition: color var(--transition-fast);
}

.project-card__link:hover {
  color: var(--color-terracotta-dark);
}

/* --- About Section --- */
.about {
  background-color: var(--color-cream);
}

.about__header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.about__header h2 {
  margin-bottom: var(--space-sm);
}

.about__header p {
  color: var(--color-olive-grey);
  max-width: 560px;
  margin: 0 auto;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-2xl);
  align-items: start;
}

.about__photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  background-color: var(--color-sand);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__photo svg {
  width: 64px;
  height: 64px;
  opacity: 0.3;
}

.about__bio h3 {
  margin-bottom: var(--space-sm);
}

.about__bio p {
  margin-bottom: var(--space-md);
  color: var(--color-olive-grey);
}

.about__bio p:last-of-type {
  margin-bottom: var(--space-lg);
}

/* Highlight block */
.highlight-block {
  background-color: var(--color-terracotta-tint);
  border-left: 4px solid var(--color-terracotta);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-xl);
}

.highlight-block p {
  color: var(--color-ink-brown);
  font-size: var(--text-body-lg);
  line-height: var(--lh-body-lg);
  font-style: italic;
}

/* Skills grid */
.skills {
  margin-top: var(--space-xl);
}

.skills h4 {
  margin-bottom: var(--space-md);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.skill-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 500;
  font-size: var(--text-small);
}

.skill-item::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-terracotta);
  flex-shrink: 0;
}

/* --- Contact Section --- */
.contact {
  background-color: var(--color-sand);
  text-align: center;
}

.contact h2 {
  margin-bottom: var(--space-sm);
}

.contact p {
  color: var(--color-olive-grey);
  max-width: 520px;
  margin: 0 auto var(--space-lg);
}

.contact__actions {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.lead-form {
  background-color: var(--color-cream);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  padding: var(--space-md);
  width: min(100%, 620px);
  text-align: left;
}

.lead-form__label {
  display: block;
  font-weight: 600;
  font-size: var(--text-small);
  margin-bottom: 6px;
}

.lead-form__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.lead-form__input {
  width: 100%;
  border: 1.5px solid rgba(59, 47, 47, 0.25);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  color: var(--color-ink-brown);
  padding: 12px 14px;
  min-height: 48px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.lead-form__input:focus {
  outline: none;
  border-color: var(--color-terracotta);
  box-shadow: 0 0 0 3px rgba(196, 106, 74, 0.18);
}

.lead-form__submit {
  min-height: 48px;
}

.lead-form__consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: var(--text-small);
  color: var(--color-ink-brown);
  margin-bottom: var(--space-xs);
}

.lead-form__consent input {
  margin-top: 2px;
}

.lead-form__policy {
  color: var(--color-olive-grey);
  margin-bottom: var(--space-xs);
}

.lead-form__status {
  min-height: 24px;
  margin: 0;
  font-size: var(--text-small);
  font-weight: 500;
}

.lead-form__status--success {
  color: #226b3a;
}

.lead-form__status--error {
  color: #8d2f1f;
}

.lead-form__input--error {
  border-color: #b33c27;
}

.lead-form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-ink-brown);
  color: var(--color-sand);
  padding: var(--space-xl) 0;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.footer__logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-body-lg);
  letter-spacing: var(--ls-heading);
  color: var(--color-cream);
}

.footer__links {
  display: flex;
  gap: var(--space-md);
}

.footer__link {
  font-size: var(--text-small);
  color: var(--color-sand);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-cream);
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.footer__social a:hover {
  background-color: var(--color-terracotta);
}

.footer__social svg {
  width: 18px;
  height: 18px;
  fill: var(--color-cream);
}

.footer__copyright {
  width: 100%;
  text-align: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--text-micro);
  color: var(--color-olive-grey);
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Mobile Menu Overlay --- */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background-color: var(--color-cream);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
}

.mobile-menu--open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: 600;
  letter-spacing: var(--ls-heading);
  color: var(--color-ink-brown);
  transition: color var(--transition-fast);
}

.mobile-menu a:hover {
  color: var(--color-terracotta);
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

/* Small desktop — 1024px */
@media (max-width: 1024px) {
  :root {
    --text-h1:      42px;
    --text-h2:      34px;
    --section-padding: 80px;
  }

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

  .about__grid {
    gap: var(--space-xl);
  }

  .hero__layout {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  }

  .hero__image {
    max-width: 300px;
  }
}

/* Tablet — 768px */
@media (max-width: 768px) {
  :root {
    --text-h1:      36px;
    --text-h2:      30px;
    --text-h3:      24px;
    --text-h4:      20px;
    --section-padding: 64px;
  }

  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .mobile-menu {
    display: flex;
  }

  .hero {
    padding-top: calc(72px + var(--space-2xl));
    padding-bottom: var(--space-2xl);
  }

  .hero__layout {
    grid-template-columns: minmax(0, 1fr) minmax(180px, 240px);
    gap: var(--space-md);
    align-items: center;
  }

  .hero__content {
    max-width: 100%;
  }

  .hero__image {
    max-width: 240px;
  }

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

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .about__photo {
    max-width: 360px;
    margin: 0 auto;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 640px) {
  .hero__layout {
    grid-template-columns: minmax(0, 1fr) minmax(160px, 220px);
    gap: var(--space-md);
    align-items: center;
  }

  .hero__image-wrap {
    justify-content: flex-end;
  }

  .hero__image {
    max-width: 220px;
  }
}

/* Mobile — 480px */
@media (max-width: 480px) {
  :root {
    --text-h1:      30px;
    --text-h2:      26px;
    --section-padding: 48px;
    --card-padding:    24px;
  }

  .portfolio__grid {
    grid-template-columns: 1fr;
  }

  .skills__grid {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
  }

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

  .hero__image {
    max-width: 220px;
  }

  .contact__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .lead-form__row {
    grid-template-columns: 1fr;
  }

  .lead-form__submit {
    width: 100%;
  }
}