/* =========================================================
   Charles Dale Construction: site styles
   Colours, fonts and sizes come from docs/design-spec.md.
   Change a value in :root and every page updates.
   ========================================================= */

/* ---------- Fonts (stored in /fonts, so no calls to Google) ---------- */
@font-face {
  font-family: "Montserrat";
  src: url("/fonts/montserrat-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Montserrat";
  src: url("/fonts/montserrat-italic-latin.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Almarai";
  src: url("/fonts/almarai-400-latin.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ---------- Design tokens ---------- */
:root {
  --green: #043C01;        /* headings, subheadings, testimonials, button */
  --nav: #012D02;          /* navigation links and Instagram icon */
  --text: #2E3105;         /* body text and dividers */
  --cream: #FEFFE9;        /* button text */
  --white: #FFFFFF;        /* page background */
  --field: #FAFAFA;        /* form field background */
  --field-border: rgba(0, 0, 0, 0.7);

  --font: "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --font-button: "Almarai", "Montserrat", Arial, sans-serif;

  --size-xl: 2.944rem;     /* page titles (47px) */
  --size-l: 2.296rem;      /* section titles (36.7px) */
  --size-m: 1.648rem;      /* project titles (26.4px) */
  --size-s: 0.892rem;      /* accordion lists, hints (14.3px) */

  --gutter: 4vw;           /* space at the page edges */
}

@media (max-width: 767px) {
  :root {
    --size-xl: 2.14rem;
    --size-l: 1.67rem;
    --size-m: 1.4rem;
    --gutter: 6vw;
  }
}

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

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

body {
  margin: 0;
  background: var(--white);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--green); }

h1, h2, h3 {
  margin: 0;
  color: var(--green);
  font-weight: 500;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p, ul { margin: 0; }

strong { font-weight: 700; color: var(--green); }

.title-xl { font-size: var(--size-xl); line-height: 1.114; }
.title-l  { font-size: var(--size-l);  line-height: 1.142; }
.title-m  { font-size: var(--size-m);  line-height: 1.171; }

:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  background: var(--green);
  color: var(--cream);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { top: 10px; }

/* ---------- Header ---------- */
.site-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 43px var(--gutter);
}

.site-nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 18px;
}

.site-nav a {
  color: var(--nav);
  text-decoration: none;
  padding-bottom: 1px;
  /* Underline drawn as a background so it can grow in on hover */
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.25s ease;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { background-size: 100% 1px; }

.nav-social { display: none; }

.logo { display: block; }
.logo img { width: 210px; }

.header-social { justify-self: end; }
.header-social a,
.nav-social a { color: var(--nav); display: block; }
.social-icon { width: 36px; height: 36px; display: block; }

.menu-toggle { display: none; }

@media (max-width: 767px) {
  .site-header {
    grid-template-columns: 1fr auto;
    padding-block: 23px;
  }
  .logo { grid-column: 1; grid-row: 1; position: relative; z-index: 60; }
  .logo img { width: 119px; }
  .header-social { display: none; }

  .menu-toggle {
    grid-column: 2;
    grid-row: 1;
    position: relative;
    z-index: 60;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
    width: 44px;
    height: 44px;
    padding: 0 6px;
    margin-right: -6px;
    background: none;
    border: 0;
    color: var(--nav);
    cursor: pointer;
  }
  .menu-toggle span {
    display: block;
    height: 1px;
    background: currentColor;
    transition: transform 0.25s ease;
  }
  .menu-open .menu-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-open .menu-toggle span:last-child  { transform: translateY(-4px) rotate(-45deg); }

  .site-nav { display: none; }
  .menu-open { overflow: hidden; }
  .menu-open .site-nav {
    display: flex;
    position: fixed;
    inset: 0;
    z-index: 50;
    background: var(--white);
    align-items: center;
    justify-content: center;
  }
  .menu-open .site-nav ul {
    flex-direction: column;
    align-items: center;
    gap: 22px;
  }
  .menu-open .site-nav a { font-size: 1.75rem; }
  .nav-social { display: block; margin-top: 18px; }
  .nav-social a { background: none; }
}

/* ---------- Page layout ----------
   A 24-column grid, the same idea Squarespace uses. Each block says
   which columns it spans, e.g. "grid-column: 1 / 12" = columns 1 to 11. */
.grid {
  display: grid;
  grid-template-columns: repeat(24, minmax(0, 1fr));
  padding-inline: var(--gutter);
}
.grid > * { min-width: 0; }

@media (max-width: 767px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
  .grid > * { grid-column: 1 / -1 !important; grid-row: auto !important; }
}

/* ---------- About ---------- */
.about { padding-block: 48px 120px; row-gap: 27px; }
.about .title-xl { grid-column: 1 / 12; }
.about-text { grid-column: 1 / 12; grid-row: 2; display: grid; gap: 44px; }
.about-text section { display: grid; gap: 16px; }
.about-photo { grid-column: 15 / 22; grid-row: 2; }

@media (max-width: 767px) {
  .about { padding-block: 24px 72px; }
  .about-photo { width: 50%; justify-self: center; margin-top: 24px; }
}

/* ---------- Services ---------- */
.services { padding-block: 95px 120px; }
.services > * { grid-column: 1 / 15; }
.services-intro { margin-top: 27px; }
.accordion { margin-top: 24px; border-top: 1px solid var(--text); }
.services .title-l { margin-top: 56px; }
.services-pro { margin-top: 37px; }

.accordion details { border-bottom: 1px solid var(--text); }
.accordion summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  line-height: 1.2;
  cursor: pointer;
  list-style: none;
}
.accordion summary::-webkit-details-marker { display: none; }

/* The plus sign: two thin lines; the upright one folds away when open */
.plus { position: relative; width: 14px; height: 14px; flex: none; }
.plus::before,
.plus::after { content: ""; position: absolute; background: currentColor; }
.plus::before { left: 0; right: 0; top: 50%; height: 1px; transform: translateY(-50%); }
.plus::after { top: 0; bottom: 0; left: 50%; width: 1px; transform: translateX(-50%); transition: transform 0.25s ease; }
details[open] .plus::after { transform: translateX(-50%) scaleY(0); }

.accordion ul {
  padding: 32px 0 39px 90px;
  list-style: circle;
  font-size: var(--size-s);
}
.accordion li + li { margin-top: 7px; }

/* Smooth open and close in browsers that support it */
@supports (interpolate-size: allow-keywords) {
  .accordion { interpolate-size: allow-keywords; }
  .accordion details::details-content {
    height: 0;
    overflow: clip;
    transition: height 0.3s ease, content-visibility 0.3s allow-discrete;
  }
  .accordion details[open]::details-content { height: auto; }
}

@media (max-width: 767px) {
  .services { padding-block: 24px 72px; }
  .accordion ul { padding-left: 40px; }
}

/* ---------- Projects ---------- */
.projects { padding-block: 40px 120px; }
.projects .title-l { grid-column: 2 / 11; }

.project { grid-column: 1 / -1; display: grid; grid-template-columns: subgrid; padding-block: 39px; }

.project-photo { grid-row: 1; align-self: start; }
.project-photo img { width: 100%; height: 100%; object-fit: cover; }
.project-text { grid-row: 1; padding-top: 39px; display: flex; flex-direction: column; }

.project--photo-left .project-photo { grid-column: 2 / 11; aspect-ratio: 484 / 621; }
.project--photo-left .project-text  { grid-column: 13 / 22; }
.project--photo-right .project-text  { grid-column: 2 / 11; }
.project--photo-right .project-photo { grid-column: 15 / 24; aspect-ratio: 484 / 581; }

.project-location { margin-top: 10px; }
.project-description { margin-top: 48px; }
.project-quote { margin: 16px 0 0; font-style: italic; color: var(--green); }

@media (max-width: 767px) {
  .projects { padding-block: 16px 72px; }
  .project { display: flex; flex-direction: column; padding-block: 24px; }
  .project-photo { width: 100%; aspect-ratio: 4 / 5 !important; }
  .project-text { padding-top: 24px; }
}

/* ---------- Contact ---------- */
.contact { padding-block: 48px 120px; }
.contact .title-xl { grid-column: 1 / -1; }
.contact-form { grid-column: 7 / 19; margin-top: 27px; display: grid; gap: 20px; }

.field-set { border: 0; margin: 0; padding: 0; min-width: 0; }
.field-set legend { padding: 0; margin-bottom: 4px; }
.name-row { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.field { display: grid; gap: 4px; }
.field label { display: block; }
.field-caption { font-size: 0.75rem; }
.hint { font-size: var(--size-s); opacity: 0.7; margin-left: 4px; }
.field-caption .hint { font-size: 0.75rem; }

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  font: inherit;
  color: #000;
  background: var(--field);
  border: 1px solid var(--field-border);
  border-radius: 0;
  padding: 10px;
}
.contact-form input,
.contact-form select { height: 46px; }
.contact-form textarea { height: 100px; resize: vertical; }
.contact-form select {
  appearance: none;
  padding-right: 32px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 10'%3E%3Cpath d='M1 1l7 7 7-7' fill='none' stroke='%23000' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 14px;
}
.contact-form ::placeholder { color: #000; opacity: 0.55; }

/* Hidden trap field: real people never see it, spam bots fill it in */
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.button {
  justify-self: center;
  font-family: var(--font-button);
  font-size: 1rem;
  line-height: 1.1;
  padding: 19.2px 32px;
  border: 0;
  border-radius: 6.4px;
  background: var(--green);
  color: var(--cream);
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.button:hover { opacity: 0.85; }
.button:disabled { opacity: 0.6; cursor: default; }

.form-status { text-align: center; min-height: 1.5em; }

@media (max-width: 767px) {
  .contact { padding-block: 24px 72px; }
}

/* ---------- Simple pages (404) ---------- */
.simple { padding-block: 48px 160px; row-gap: 24px; }
.simple > * { grid-column: 1 / 15; }

/* ---------- Footer ---------- */
.site-footer {
  text-align: center;
  padding: 24px var(--gutter) 40px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}