/* ============================================================
   REEPL — Resource Environmental Engineering
   Design system: derived from logo (slate + sage), Swiss-precise.
   One typeface (General Sans). Restraint as identity.
   ============================================================ */

:root {
  /* ─── Palette (from logo) ─── */
  --ink:        #1B2230;   /* deep slate — primary text/UI                    */
  --ink-soft:   #2C3E50;   /* logo slate                                      */
  --ink-mute:   #5A6573;   /* secondary text                                  */
  --line:       #DAD6CE;   /* hairline on paper                               */
  --line-soft:  #E8E6E1;   /* mist                                            */

  --paper:      #F5F2EC;   /* warm off-white surface                          */
  --paper-2:    #EFEBE3;   /* slightly deeper                                 */
  --bg:         #FBFAF7;   /* page bg                                         */

  --sage:       #7DBDB0;   /* logo accent                                     */
  --sage-deep:  #4F8C82;   /* hover/contrast                                  */
  --sage-soft:  #C8E0DA;   /* tint                                            */

  --dark:       #141A22;   /* dark sections                                   */
  --dark-2:     #1C232D;
  --dark-line:  #2A3340;

  /* ─── Type scale (modular, restrained) ─── */
  --text-xs:   clamp(0.75rem, 0.74rem + 0.05vw, 0.8125rem);
  --text-sm:   clamp(0.875rem, 0.84rem + 0.18vw, 0.95rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-md:   clamp(1.125rem, 1.04rem + 0.4vw, 1.25rem);
  --text-lg:   clamp(1.375rem, 1.2rem + 0.8vw, 1.625rem);
  --text-xl:   clamp(1.75rem, 1.4rem + 1.6vw, 2.5rem);
  --text-2xl:  clamp(2.25rem, 1.6rem + 2.8vw, 3.75rem);
  --text-hero: clamp(2.5rem, 1.4rem + 5.4vw, 6rem);

  /* ─── Space scale ─── */
  --s-1: .25rem;  --s-2: .5rem;   --s-3: .75rem;
  --s-4: 1rem;    --s-5: 1.25rem; --s-6: 1.5rem;
  --s-8: 2rem;    --s-10: 2.5rem; --s-12: 3rem;
  --s-16: 4rem;   --s-20: 5rem;   --s-24: 6rem;
  --s-32: 8rem;   --s-40: 10rem;

  /* ─── Layout ─── */
  --container: 1280px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(5rem, 9vw, 8.5rem);

  /* ─── Type families ─── */
  --font-body:  'General Sans', 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* ─── Motion ─── */
  --ease: cubic-bezier(.2, .7, .2, 1);
  --dur:  420ms;
}

/* ─────────────────────────── Reset ─────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 4; }
html:focus-within { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01' on, 'cv11' on;
}
img, picture, svg, video { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ol, ul { padding: 0; list-style: none; }
:focus-visible {
  outline: 2px solid var(--sage-deep);
  outline-offset: 3px;
  border-radius: 2px;
}
::selection { background: var(--sage-soft); color: var(--ink); }

.skip-link {
  position: absolute; left: -9999px;
  background: var(--ink); color: var(--paper);
  padding: .5rem 1rem;
}
.skip-link:focus { left: 1rem; top: 1rem; z-index: 100; }

/* ─────────────────────────── Layout ─────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: var(--section-y); }
.section--dark  { background: var(--dark); color: var(--paper); }
.section--dark .section-no  { color: var(--sage); }
.section--dark .section-lede { color: rgba(245,242,236,.7); }
.section--soft  { background: var(--paper); }

/* ─────────────────────── Section headings ─────────────────────── */
.section-no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sage-deep);
  margin-bottom: var(--s-6);
}
.section-title {
  font-weight: 500;
  font-size: var(--text-2xl);
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: inherit;
  max-width: 22ch;
}
.section-head { margin-bottom: clamp(var(--s-12), 6vw, var(--s-20)); max-width: 720px; }
.section-lede {
  font-size: var(--text-md);
  line-height: 1.5;
  color: var(--ink-mute);
  margin-top: var(--s-6);
  max-width: 56ch;
}

/* ────────────────────────── Header ────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 250, 247, 0.78);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(251, 250, 247, 0.92);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.logo img { height: 36px; width: auto; }
.primary-nav {
  display: flex; align-items: center; gap: clamp(1.25rem, 2.5vw, 2.25rem);
  font-size: var(--text-sm);
  font-weight: 500;
}
.primary-nav a { color: var(--ink); padding: .5rem 0; position: relative; }
.primary-nav a:not(.btn-ghost):hover { color: var(--sage-deep); }
.primary-nav a:not(.btn-ghost)::after {
  content: ''; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: currentColor; transition: right var(--dur) var(--ease);
}
.primary-nav a:not(.btn-ghost):hover::after { right: 0; }

.btn-ghost {
  border: 1px solid var(--ink);
  padding: .55rem 1rem !important;
  border-radius: 999px;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-ghost::after { display: none; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  position: relative;
}
.nav-toggle span {
  position: absolute; left: 9px; right: 9px; height: 1.5px;
  background: var(--ink); transition: transform var(--dur) var(--ease), top var(--dur) var(--ease);
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 23px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { top: 20px; transform: rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: var(--s-6) var(--gutter) var(--s-12);
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.mobile-nav a {
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: var(--text-md);
}
.mobile-nav a:last-child { border-bottom: 0; color: var(--sage-deep); }

@media (max-width: 860px) {
  .primary-nav { display: none; }
  .nav-toggle  { display: block; }
  .mobile-nav.is-open { display: flex; }
}

/* ────────────────────────── Buttons ────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; gap: .65rem;
  background: var(--ink);
  color: var(--paper);
  padding: .9rem 1.4rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: var(--text-sm);
  letter-spacing: .005em;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
  border: 1px solid var(--ink);
}
.btn-primary:hover { background: var(--sage-deep); border-color: var(--sage-deep); }
.btn-primary span[aria-hidden] { transition: transform var(--dur) var(--ease); }
.btn-primary:hover span[aria-hidden] { transform: translateX(3px); }

.section--dark .btn-primary { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.section--dark .btn-primary:hover { background: var(--sage); color: var(--ink); border-color: var(--sage); }

.btn-text {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: var(--text-sm); font-weight: 500;
  padding: .9rem 0;
  position: relative;
}
.btn-text::after {
  content: ''; position: absolute; left: 0; bottom: .6rem;
  height: 1px; width: 100%; background: currentColor; opacity: .35;
  transition: opacity var(--dur) var(--ease);
}
.btn-text:hover::after { opacity: 1; }

/* ────────────────────────── HERO ────────────────────────── */
.hero {
  position: relative;
  min-height: clamp(580px, 92vh, 980px);
  display: flex; align-items: flex-end;
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
}
@media (max-width: 560px) {
  .hero { min-height: 88svh; }
}
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media picture { display: block; width: 100%; height: 100%; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 55% 60%; display: block; }
.hero-overlay {
  position: absolute; inset: 0; z-index: -1;
  /* Soft directional shade behind the text only — no bottom band */
  background: linear-gradient(90deg, rgba(20,26,34,0.55) 0%, rgba(20,26,34,0.25) 40%, rgba(20,26,34,0) 70%);
}
.hero-content {
  padding-block: clamp(6rem, 12vh, 9rem) clamp(4rem, 8vh, 6rem);
  display: grid; gap: var(--s-6);
  max-width: 1100px;
}
.hero-content .eyebrow { margin-bottom: var(--s-2); }
.hero-cta { margin-top: var(--s-3); }
.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(245,242,236,.85);
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--sage);
  box-shadow: 0 0 0 4px rgba(125,189,176,.18);
}
.hero-title {
  font-weight: 500;
  font-size: clamp(2.4rem, 1.2rem + 4.8vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--paper);
  text-wrap: balance;
  hyphens: manual;
  word-break: normal;
  overflow-wrap: break-word;
  /* lines as a stacked column — each .line breaks to its own row */
  display: flex;
  flex-direction: column;
  gap: .02em;
  max-width: 18ch;
}
.hero-title .line { display: block; }
/* On small screens, drop the line-by-line composition — let text flow */
@media (max-width: 760px) {
  .hero-title {
    display: block;
    line-height: 1.02;
    max-width: 14ch;
  }
  .hero-title .line { display: inline; }
  .hero-title .line + .line { margin-left: .25em; }
}
.hero-sub {
  font-size: clamp(1.0625rem, 0.95rem + 0.4vw, 1.25rem);
  line-height: 1.5;
  color: rgba(245,242,236,.9);
  max-width: 48ch;
}
.hero-cta { display: flex; align-items: center; gap: var(--s-6); flex-wrap: wrap; }
.hero-meta {
  position: absolute; left: 0; right: 0; bottom: var(--s-4);
  display: flex; justify-content: space-between; gap: 1rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(245,242,236,.55);
}
@media (max-width: 720px) {
  .hero-meta span:last-child { display: none; }
}

/* ────────────────────────── CAPABILITIES ────────────────────────── */
.capabilities { background: var(--bg); }

.cap-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  border-top: 1px solid var(--line);
  margin-bottom: clamp(var(--s-16), 6vw, var(--s-24));
}
@media (min-width: 760px) { .cap-list { grid-template-columns: repeat(4, minmax(0,1fr)); } }

.cap-list li {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: var(--s-6) var(--s-5);
  display: flex; align-items: center;
  transition: background var(--dur) var(--ease);
  min-height: 110px;
}
.cap-list li:hover { background: var(--paper); }
.cap-list li:nth-child(2n)  { border-right: 0; }
@media (min-width: 760px) {
  .cap-list li:nth-child(2n) { border-right: 1px solid var(--line); }
  .cap-list li:nth-child(4n) { border-right: 0; }
}
.cap-list .num {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--sage-deep);
}
.cap-list .label {
  font-weight: 500;
  font-size: var(--text-md);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.cap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
}
@media (min-width: 900px) {
  .cap-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.cap-figure {
  aspect-ratio: 4 / 3;
}
.cap-figure {
  position: relative;
  overflow: hidden;
  background: var(--paper-2);
}
.cap-figure img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.cap-figure:hover img { transform: scale(1.03); }
.cap-figure figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: var(--s-5) var(--s-6);
  background: linear-gradient(180deg, transparent, rgba(20,26,34,.7));
  color: var(--paper);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: -0.005em;
}

/* ────────────────────────── WHY / APPROACH ────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(var(--s-10), 5vw, var(--s-20));
  align-items: start;
}
@media (min-width: 980px) {
  .why-grid { grid-template-columns: 1.05fr 1fr; gap: var(--s-20); }
}
.why-list {
  display: grid; gap: var(--s-6);
  margin-top: var(--s-12);
  border-top: 1px solid var(--dark-line);
}
.why-list > div {
  padding-top: var(--s-6);
  border-bottom: 1px solid var(--dark-line);
  padding-bottom: var(--s-6);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-2);
}
@media (min-width: 640px) {
  .why-list > div { grid-template-columns: 220px 1fr; gap: var(--s-6); }
}
.why-list dt {
  font-weight: 500;
  color: var(--paper);
  font-size: var(--text-md);
  letter-spacing: -0.01em;
}
.why-list dd {
  color: rgba(245,242,236,.7);
  font-size: var(--text-base);
  line-height: 1.55;
}
.why-figure {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--dark-2);
}
.why-figure img { width: 100%; height: 100%; object-fit: cover; }

/* ────────────────────────── INNOVATION ────────────────────────── */
.innovation { background: var(--paper); }
.innov-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(var(--s-10), 5vw, var(--s-20));
  align-items: center;
}
@media (min-width: 980px) {
  .innov-grid { grid-template-columns: 1fr 1fr; gap: var(--s-20); }
}
.innov-figure { overflow: hidden; aspect-ratio: 4 / 3; }
.innov-figure img { width: 100%; height: 100%; object-fit: cover; }
.innov-copy .section-title { max-width: 18ch; }
.innov-body {
  margin-top: var(--s-8);
  color: var(--ink);
  font-size: var(--text-md);
  line-height: 1.55;
  max-width: 50ch;
}
.innov-body em { font-style: normal; font-weight: 600; color: var(--sage-deep); }
.recognitions {
  margin-top: var(--s-10);
  display: flex; flex-wrap: wrap; gap: var(--s-2);
}
.recognitions li {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .55rem .85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: var(--bg);
}

/* ────────────────────────── INDUSTRIES ────────────────────────── */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
@media (min-width: 760px)  { .industry-grid { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (min-width: 1100px) { .industry-grid { grid-template-columns: repeat(6, minmax(0,1fr)); } }
.industry-grid li {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: var(--s-10) var(--s-6);
  display: grid;
  gap: var(--s-6);
  min-height: 220px;
  align-content: space-between;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  background: var(--paper);
}
.industry-grid li:hover { background: var(--ink); color: var(--paper); }
.industry-grid li:hover svg { color: var(--sage); }
.industry-grid svg { width: 36px; height: 36px; color: var(--sage-deep); transition: color var(--dur) var(--ease); }
.industry-grid span {
  font-weight: 500;
  font-size: var(--text-md);
  letter-spacing: -0.01em;
  line-height: 1.25;
  align-self: end;
}

/* ────────────────────────── CONTACT ────────────────────────── */
.contact-grid {
  display: grid; grid-template-columns: 1fr; gap: var(--s-12);
}
@media (min-width: 980px) {
  .contact-grid { grid-template-columns: 1fr 1.2fr; gap: clamp(4rem, 8vw, 7rem); align-items: start; }
}
.contact-copy .section-title { max-width: 16ch; }
.contact-info {
  margin-top: var(--s-12);
  display: grid; gap: var(--s-8);
  border-top: 1px solid var(--dark-line);
  padding-top: var(--s-8);
}
.contact-info div { display: grid; grid-template-columns: 80px 1fr; gap: var(--s-4); align-items: baseline; }
.contact-info dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sage);
}
.contact-info dd {
  color: rgba(245,242,236,.86);
  font-size: var(--text-base);
  line-height: 1.5;
}
.contact-info a { border-bottom: 1px solid rgba(245,242,236,.3); transition: border-color var(--dur) var(--ease); }
.contact-info a:hover { border-color: var(--sage); }

.contact-form {
  background: var(--dark-2);
  border: 1px solid var(--dark-line);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  display: grid; gap: var(--s-5);
}
.field { display: grid; gap: var(--s-2); }
.field.two { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-4); }
@media (max-width: 560px) { .field.two { grid-template-columns: 1fr; } }
.field.two > div { display: grid; gap: var(--s-2); }
.field label {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(245,242,236,.6);
}
.field input, .field select, .field textarea {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--dark-line);
  color: var(--paper);
  padding: .65rem 0;
  font-size: var(--text-base);
  border-radius: 0;
  transition: border-color var(--dur) var(--ease);
  width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-bottom-color: var(--sage);
}
.field textarea { resize: vertical; min-height: 110px; line-height: 1.5; }
.field select { appearance: none; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'><path d='M1 1l5 5 5-5' stroke='%237DBDB0' stroke-width='1.4'/></svg>"); background-repeat: no-repeat; background-position: right .5rem center; padding-right: 1.5rem; }
.field option { color: var(--ink); background: var(--paper); }

.hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }

.cf-turnstile { min-height: 65px; margin-top: var(--s-2); }

.form-foot {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-4);
  flex-wrap: wrap;
  margin-top: var(--s-2);
}
.form-note { font-size: var(--text-sm); color: rgba(245,242,236,.7); }
.form-note.is-error { color: #F4B4A7; }
.form-note.is-success { color: var(--sage); }

button[disabled] { opacity: .55; cursor: not-allowed; }

/* ────────────────────────── FOOTER ────────────────────────── */
.site-footer {
  background: var(--ink);
  color: rgba(245,242,236,.7);
  padding-block: var(--s-10) var(--s-8);
  font-size: var(--text-sm);
}
.footer-inner {
  display: grid; gap: var(--s-8);
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .footer-inner { grid-template-columns: 1.2fr 1.8fr; align-items: end; }
}
.footer-brand img { height: 28px; width: auto; filter: brightness(0) invert(1) opacity(.85); }
.footer-brand p { margin-top: var(--s-4); color: rgba(245,242,236,.55); max-width: 38ch; }
.footer-meta {
  display: grid; gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
@media (min-width: 760px) {
  .footer-meta { justify-content: end; text-align: right; }
}

/* ────────────────────────── Motion ────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
  html:focus-within { scroll-behavior: auto; }
}
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }