/* ==========================================================================
   ytg. — Technical Services
   Brand-aligned (per youthinkgreen Egypt Brand Manual, Dec 2018):
   - Font: Quicksand (400 / 500 / 600 / 700)
   - Voice: smooth, clean, fresh, neat — never bold/sharp
   - Main green:  #09d364  + #2be275  + #44ea87
   - Dark grey:   #242430  + #44444c  + #5c5c60
   - Visual: minimal, monochromatic, vector-based, flat
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  --green-700: #07a350;
  --green-500: #09d364;        /* primary brand */
  --green-400: #2be275;
  --green-300: #44ea87;
  --green-50:  #eafaf0;
  --green-25:  #f4fcf7;

  --ink-900: #242430;          /* main dark grey */
  --ink-700: #44444c;
  --ink-500: #5c5c60;
  --ink-300: #b8b9bf;
  --ink-100: #e7e8ec;

  --paper:   #ffffff;
  --paper-2: #f7faf6;

  /* Type scale (clamped, fluid) */
  --fs-eyebrow: 0.78rem;
  --fs-body:    1.0625rem;
  --fs-lead:    clamp(1.1rem, 0.95rem + 0.6vw, 1.3rem);
  --fs-h3:      clamp(1.25rem, 1.05rem + 0.7vw, 1.6rem);
  --fs-h2:      clamp(1.85rem, 1.4rem + 1.8vw, 3rem);
  --fs-h1:      clamp(2.6rem, 1.8rem + 4.6vw, 6rem);

  /* Layout */
  --maxw: 1240px;
  --gutter: clamp(1.25rem, 2.5vw, 2.5rem);
  --radius: 14px;
  --radius-sm: 8px;

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

/* ---------- Reset-lite ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Quicksand", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-weight: 500;
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--ink-900);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, object { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { padding: 0; margin: 0; list-style: none; }
h1,h2,h3,h4 { margin: 0; line-height: 1.15; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }

/* Brand dot — the heart of the identity. Used everywhere. */
.lc-dot, .title-dot, .brand__dot, .eyebrow__dot, .chip-dot {
  display: inline-block;
  width: 0.42em;
  height: 0.42em;
  background: var(--green-500);
  border-radius: 50%;
  vertical-align: baseline;
  margin-left: 0.04em;
  transform: translateY(0.02em);
}
.title-dot { width: 0.32em; height: 0.32em; margin-left: 0.06em; }
.eyebrow__dot { width: 8px; height: 8px; margin: 0 8px 1px 0; }

/* Skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink-900); color: #fff;
  padding: .6rem 1rem; border-radius: 0 0 8px 0; z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
  padding: 1.1rem var(--gutter);
  background: rgba(255,255,255,0.78);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--ink-100);
  background: rgba(255,255,255,0.92);
}
.brand {
  display: inline-flex; align-items: baseline; gap: .55rem;
  font-weight: 700; letter-spacing: -0.01em;
}
.brand__mark {
  font-size: 1.35rem; line-height: 1;
  color: var(--ink-900);
  letter-spacing: -0.04em;
}
.brand__mark .brand__dot {
  width: 0.32em; height: 0.32em;
  margin-left: 0.04em;
}
.brand__sep {
  display: inline-block;
  width: 1px; height: 1.05rem;
  background: var(--ink-100);
  margin: 0 .25rem;
  transform: translateY(2px);
}
.brand__service {
  font-size: .85rem; font-weight: 500; color: var(--ink-500);
}
@media (max-width: 720px) { .brand__sep, .brand__service { display: none; } }

.site-nav { display: flex; gap: 1.4rem; align-items: center; }
.site-nav a {
  font-size: .92rem; font-weight: 500; color: var(--ink-700);
  position: relative;
  transition: color .2s var(--ease);
}
.site-nav a:not(.btn)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px; background: var(--green-500);
  transform: scaleX(0); transform-origin: left;
  transition: transform .25s var(--ease);
}
.site-nav a:hover { color: var(--ink-900); }
.site-nav a:hover::after { transform: scaleX(1); }
@media (max-width: 880px) { .site-nav a:not(.btn) { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1.3rem;
  border-radius: 999px;
  font-weight: 600; font-size: .95rem;
  border: 1px solid transparent;
  transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--green-500);
  color: var(--ink-900);
}
.btn--primary:hover {
  background: var(--green-400);
  transform: translateY(-1px);
}
.btn--ghost {
  border-color: var(--ink-100);
  color: var(--ink-900);
}
.btn--ghost:hover {
  border-color: var(--green-500);
  color: var(--green-700);
}
.btn--text {
  padding: .6rem 0; color: var(--ink-900);
}
.btn--text svg { transition: transform .25s var(--ease); }
.btn--text:hover svg { transform: translateX(4px); }

/* ---------- Section primitives ---------- */
.section {
  padding: clamp(5rem, 8vw, 8rem) var(--gutter);
  max-width: var(--maxw);
  margin: 0 auto;
  position: relative;
}
.section__head {
  max-width: 780px; margin-bottom: clamp(2rem, 4vw, 4rem);
}
.section__head h2 { font-size: var(--fs-h2); }
.section__lead {
  font-size: var(--fs-lead);
  color: var(--ink-500);
  margin-top: 1rem;
  max-width: 60ch;
}
.eyebrow {
  display: inline-flex; align-items: center;
  text-transform: uppercase;
  font-size: var(--fs-eyebrow); letter-spacing: .18em;
  color: var(--green-700);
  font-weight: 700;
  margin-bottom: 1rem;
}

/* ---------- Hero (photo-driven) ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  padding: clamp(8rem, 14vh, 12rem) var(--gutter) 6rem;
  overflow: hidden;
  isolation: isolate;
  color: #fff;
}
.hero__media {
  position: absolute; inset: 0; z-index: -1;
  overflow: hidden;
}
.hero__photo {
  position: absolute; inset: -8% -2%;
  width: 104%; height: 116%;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.02);
  will-change: transform;
}
.hero__tint {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(36,36,48,0.55) 0%, rgba(36,36,48,0.78) 60%, rgba(7,163,80,0.45) 100%),
    radial-gradient(ellipse at 80% 20%, rgba(9,211,100,0.18), transparent 60%);
}
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 0%, transparent 75%);
}

.hero__inner {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 760px);
}

.hero__title {
  font-size: var(--fs-h1);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.02;
  margin: 1rem 0 1.4rem;
  color: #fff;
}
.hero__title span {
  display: block;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.hero__title.is-in span { opacity: 1; transform: none; }
.hero__title.is-in span:nth-child(1) { transition-delay: .05s; }
.hero__title.is-in span:nth-child(2) { transition-delay: .15s; }
.hero__title.is-in span:nth-child(3) { transition-delay: .25s; }
.hero__title.is-in span:nth-child(4) { transition-delay: .35s; }

.hero__sub {
  font-size: var(--fs-lead);
  color: rgba(255,255,255,0.86);
  max-width: 56ch;
}
.hero__ctas {
  margin-top: 2rem;
  display: flex; gap: 1rem; flex-wrap: wrap; align-items: center;
}
.hero__chips {
  margin-top: 2.4rem;
  display: flex; flex-wrap: wrap; gap: .9rem 1.6rem;
  font-size: .92rem; color: rgba(255,255,255,0.85);
}
.hero__chips li { display: inline-flex; align-items: center; gap: .55rem; }
.chip-dot { width: 8px; height: 8px; }

.eyebrow--light { color: var(--green-300); }
.btn--text-light { color: #fff; }
.btn--text-light:hover { color: var(--green-300); }

.hero__scrollcue {
  position: absolute; left: 50%; bottom: 1.5rem;
  transform: translateX(-50%);
  font-size: .72rem; letter-spacing: .26em;
  color: rgba(255,255,255,0.7); text-transform: uppercase;
  display: inline-flex; align-items: center; gap: .6rem;
}
.hero__scrollcue span {
  display: inline-block; width: 1px; height: 28px;
  background: linear-gradient(to bottom, var(--green-300), transparent);
  animation: scrollcue 2.2s ease-in-out infinite;
}
@keyframes scrollcue {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Why grid ---------- */
.why-grid, .deliver-grid, .outcomes-grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.6rem);
}
.why-grid    { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.deliver-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.outcomes-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card, .reassure, .outcome {
  position: relative;
  padding: 2rem 1.75rem;
  background: var(--paper-2);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.card:hover, .reassure:hover, .outcome:hover {
  transform: translateY(-4px);
  border-color: var(--green-300);
  box-shadow: 0 18px 40px -22px rgba(9, 211, 100, 0.4);
}

.card__icon {
  width: 44px; height: 44px;
  color: var(--green-500);
  margin-bottom: 1.4rem;
}
.card__num, .reassure__num {
  font-family: "Quicksand", sans-serif;
  font-weight: 700;
  font-size: .8rem; letter-spacing: .18em;
  color: var(--green-700);
  margin-bottom: .5rem;
  text-transform: uppercase;
}
.card h3, .reassure h3, .outcome h3 {
  font-size: var(--fs-h3);
  margin-bottom: .6rem;
}
.card p, .outcome p { color: var(--ink-500); }

.reassure ul {
  margin-top: 1rem;
  display: flex; flex-direction: column; gap: .55rem;
  color: var(--ink-700);
}
.reassure ul li {
  position: relative; padding-left: 1.4rem;
}
.reassure ul li::before {
  content: ""; position: absolute;
  left: 0; top: .55em;
  width: 8px; height: 8px;
  background: var(--green-500);
  border-radius: 50%;
}

/* ---------- Pillars ---------- */
.pillars {
  display: flex; flex-direction: column;
  gap: clamp(2rem, 4vw, 3.5rem);
}
.pillar-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: center;
  padding: clamp(1.5rem, 2.5vw, 2.5rem);
  background: var(--paper);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  transition: border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.pillar-card:hover {
  border-color: var(--green-300);
  box-shadow: 0 22px 50px -28px rgba(9, 211, 100, 0.35);
}
.pillar-card:nth-child(even) { grid-template-columns: 1fr 1.1fr; }
.pillar-card:nth-child(even) .pillar-card__media { order: 2; }
@media (max-width: 820px) {
  .pillar-card, .pillar-card:nth-child(even) {
    grid-template-columns: 1fr;
  }
  .pillar-card:nth-child(even) .pillar-card__media { order: 0; }
}

.pillar-card__media {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--green-25);
  margin: 0;
  aspect-ratio: 4 / 3;
}
.pillar-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .8s var(--ease);
}
.pillar-card:hover .pillar-card__media img {
  transform: scale(1.04);
}
.pillar-card__media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(36,36,48,0.55) 100%);
  pointer-events: none;
}
.pillar-card__tag {
  position: absolute;
  left: 1rem; bottom: 1rem;
  z-index: 1;
  padding: .35rem .7rem;
  background: var(--green-500);
  color: var(--ink-900);
  font-weight: 700; font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  border-radius: 999px;
}
.pillar-card__num {
  font-size: .8rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--green-700);
  font-weight: 700;
  margin-bottom: .55rem;
}
.pillar-card h3 {
  font-size: clamp(1.4rem, 1.1rem + 0.9vw, 1.95rem);
  margin-bottom: .9rem;
}
.pillar-card__lead {
  color: var(--ink-700);
  font-size: var(--fs-lead);
  margin-bottom: 1.2rem;
}
.bullets {
  display: flex; flex-direction: column; gap: .6rem;
  color: var(--ink-700);
}
.bullets li {
  position: relative; padding-left: 1.6rem;
}
.bullets li::before {
  content: ""; position: absolute; left: 0; top: .6em;
  width: 10px; height: 2px;
  background: var(--green-500);
  border-radius: 2px;
}

/* ---------- Lifecycle / timeline ---------- */
.section--lifecycle {
  position: relative;
  background: var(--ink-900);
  color: #fff;
  max-width: none;
  padding-left: var(--gutter); padding-right: var(--gutter);
  border-radius: 0;
  overflow: hidden;
  isolation: isolate;
}
.lifecycle__bg {
  position: absolute; inset: 0; z-index: -1;
}
.lifecycle__bg img {
  position: absolute; inset: -10% 0;
  width: 100%; height: 120%;
  object-fit: cover;
  opacity: 0.22;
  filter: saturate(0.6);
  will-change: transform;
}
.lifecycle__bg-tint {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(36,36,48,0.85) 0%, rgba(36,36,48,0.92) 100%),
    radial-gradient(ellipse at 80% 20%, rgba(9,211,100,0.18), transparent 60%);
}
.section--lifecycle::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
  pointer-events: none;
}
.section--lifecycle > * { position: relative; max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section--lifecycle .section__head h2 { color: #fff; }
.section--lifecycle .section__lead { color: rgba(255,255,255,.7); }
.section--lifecycle .eyebrow { color: var(--green-300); }

.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(1.2rem, 2.5vw, 2rem);
  counter-reset: step;
  position: relative;
}
.timeline__step {
  position: relative;
  padding: 1.6rem 1.4rem;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.timeline__step:hover {
  background: rgba(9, 211, 100, 0.06);
  border-color: rgba(9, 211, 100, 0.4);
  transform: translateY(-4px);
}
.timeline__num {
  font-family: "Quicksand", sans-serif;
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--green-300);
  letter-spacing: .04em;
  margin-bottom: .9rem;
  position: relative;
  display: inline-block;
}
.timeline__num::after {
  content: ""; display: block;
  width: 28px; height: 2px;
  background: var(--green-500);
  margin-top: .4rem;
}
.timeline__step h3 {
  font-size: var(--fs-h3);
  margin-bottom: .6rem;
  color: #fff;
}
.timeline__step p {
  color: rgba(255,255,255,0.78);
  font-size: .98rem;
}
.timeline__step p + p { margin-top: .6rem; }
.timeline__step strong { color: var(--green-300); font-weight: 700; }

/* ---------- CTA ---------- */
.section--cta {
  position: relative;
  max-width: none;
  border-radius: 0;
  overflow: hidden;
  isolation: isolate;
}
.cta__bg {
  position: absolute; inset: 0; z-index: -1;
}
.cta__bg img {
  position: absolute; inset: -10% 0;
  width: 100%; height: 120%;
  object-fit: cover;
  will-change: transform;
}
.cta__bg-tint {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(247,250,246,0.92), rgba(255,255,255,0.96)),
    radial-gradient(ellipse at 20% 30%, rgba(9,211,100,0.12), transparent 60%);
}
.cta {
  max-width: var(--maxw); margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}
@media (max-width: 880px) { .cta { grid-template-columns: 1fr; } }
.cta__copy h2 { font-size: var(--fs-h2); }
.cta__copy p { color: var(--ink-500); margin-top: 1rem; max-width: 50ch; }
.cta__contact {
  margin-top: 2rem;
  display: flex; flex-direction: column; gap: .8rem;
  font-size: .98rem;
}
.cta__contact strong {
  display: inline-block; width: 80px;
  color: var(--green-700);
  font-weight: 700; text-transform: uppercase;
  font-size: .78rem; letter-spacing: .14em;
}
.cta__contact a:hover { color: var(--green-700); }

.cta__form {
  background: var(--paper);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 2.5vw, 2.2rem);
  display: flex; flex-direction: column; gap: 1rem;
  box-shadow: 0 30px 60px -40px rgba(36, 36, 48, 0.25);
}
.cta__form label { display: flex; flex-direction: column; gap: .4rem; font-weight: 600; font-size: .9rem; color: var(--ink-700); }
.cta__form input, .cta__form select, .cta__form textarea {
  font: inherit; font-weight: 500; color: var(--ink-900);
  background: var(--paper-2);
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-sm);
  padding: .8rem 1rem;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.cta__form input:focus, .cta__form select:focus, .cta__form textarea:focus {
  outline: none;
  border-color: var(--green-500);
  background: var(--paper);
  box-shadow: 0 0 0 3px rgba(9, 211, 100, 0.18);
}
.cta__interests {
  border: 0; padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; gap: .55rem;
}
.cta__interests legend {
  font-weight: 600; font-size: .9rem; color: var(--ink-700); margin-bottom: .6rem;
}
.chip {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .45rem .85rem;
  background: var(--paper-2);
  border: 1px solid var(--ink-100);
  border-radius: 999px;
  font-size: .88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s var(--ease);
}
.chip input { accent-color: var(--green-500); }
.chip:has(input:checked) {
  background: var(--green-500);
  border-color: var(--green-500);
  color: var(--ink-900);
}
.cta__privacy { font-size: .78rem; color: var(--ink-500); margin-top: .4rem; }

/* ---------- Footer ---------- */
.site-footer {
  padding: 2.5rem var(--gutter);
  border-top: 1px solid var(--ink-100);
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-size: .9rem; color: var(--ink-500);
}
.site-footer a:hover { color: var(--green-700); }

/* ---------- Section split (head + photo side by side) ---------- */
.section__split {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
  margin-bottom: clamp(2rem, 4vw, 4rem);
}
@media (max-width: 820px) {
  .section__split { grid-template-columns: 1fr; }
}
.section__split .section__head { margin-bottom: 0; }
.section__photo {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  position: relative;
}
.section__photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s var(--ease);
}
.section__photo:hover img { transform: scale(1.03); }
.section__photo::after {
  content: "";
  position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px rgba(36,36,48,0.06);
  border-radius: var(--radius);
  pointer-events: none;
}

/* ---------- Reveal ---------- */
[data-reveal], [data-reveal-card], [data-reveal-step] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  will-change: opacity, transform;
}
.is-in[data-reveal], .is-in[data-reveal-card], .is-in[data-reveal-step] {
  opacity: 1; transform: none;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal], [data-reveal-card], [data-reveal-step] { opacity: 1; transform: none; }
  .hero__photo, .cta__bg img { transform: none !important; }
}