/* =============================================
   DESIGN TOKENS
   ============================================= */
:root {
  --clr-dark:    #111111;
  --clr-mid:     #898989;
  --clr-light:   #D9D9D9;
  --clr-surface: #F5F5F5;
  --clr-white:   #FFFFFF;
  --clr-red:     #FF4D4D;
  --clr-green:   #4DFFBC;

  --ff-body:     'Inter', sans-serif;
  --ff-display:  'Playfair Display', serif;

  --radius:      12px;
  --radius-lg:   20px;
  --transition:  0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow:      0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg:   0 12px 48px rgba(0,0,0,0.14);
}

/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--ff-body);
  background: var(--clr-white);
  color: var(--clr-dark);
  line-height: 1.65;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; padding: 0; }

/* =============================================
   UTILITY
   ============================================= */
.container {
  width: min(1160px, 92vw);
  margin-inline: auto;
}

.section { padding: 96px 0; }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-red);
  background: #FF4D4D15;
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--ff-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-dark);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--clr-mid);
  font-size: 1.05rem;
  max-width: 520px;
  margin-inline: auto;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn--primary {
  background: var(--clr-red);
  color: #fff;
  box-shadow: 0 4px 20px #FF4D4D40;
}
.btn--primary:hover { background: #e03d3d; transform: translateY(-2px); box-shadow: 0 8px 28px #FF4D4D55; }

.btn--ghost {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
}
.btn--ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; }

.btn--nav {
  background: var(--clr-red);
  color: #fff;
  padding: 10px 22px;
  font-size: 0.85rem;
  white-space: nowrap;
}
.btn--nav:hover { background: #e03d3d; }

/* =============================================
   NAVIGATION
   ============================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(255,255,255,0.96);
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
  backdrop-filter: blur(12px);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 5vw;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: block;
  overflow: hidden;
  flex-shrink: 0;
}

.brand-mark__img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.brand-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  line-height: 1;
}

.nav.scrolled .brand-name { color: var(--clr-dark); }

.brand-sub {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.65);
  font-weight: 400;
}

.nav.scrolled .brand-sub { color: var(--clr-mid); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav__links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  transition: color var(--transition);
}

.nav.scrolled .nav__links a { color: var(--clr-dark); }
.nav__links a:hover { color: var(--clr-red); }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

.nav.scrolled .nav__hamburger span { background: var(--clr-dark); }

.nav__mobile {
  display: none;
  flex-direction: column;
  background: var(--clr-white);
  padding: 16px 5vw 24px;
  border-top: 1px solid var(--clr-light);
}

.nav__mobile.open { display: flex; }

.mobile-link {
  padding: 12px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-dark);
  border-bottom: 1px solid var(--clr-light);
}

.mobile-link:last-child { border-bottom: none; color: var(--clr-red); }

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url('images/glass-mosaic.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    155deg,
    rgba(0,0,0,0.55) 0%,
    rgba(0,0,0,0.30) 50%,
    rgba(0,0,0,0.18) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  max-width: 800px;
  padding: 0 20px;
  animation: fadeUp 0.9s ease both;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-green);
  margin-bottom: 20px;
  border: 1px solid rgba(77,255,188,0.4);
  padding: 5px 16px;
  border-radius: 99px;
}

.hero__title {
  font-family: var(--ff-display);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 22px;
  text-shadow: 0 2px 24px rgba(0,0,0,0.3);
}

.hero__title em {
  font-style: italic;
  color: var(--clr-green);
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.82);
  max-width: 580px;
  margin: 0 auto 36px;
  font-weight: 300;
}

.hero__cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* =============================================
   SERVICES
   ============================================= */
.services { background: var(--clr-white); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.service-card {
  padding: 36px 32px;
  border: 1px solid var(--clr-light);
  border-radius: var(--radius-lg);
  background: var(--clr-white);
  transition: var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}

.service-card--accent {
  background: var(--clr-dark);
  border-color: var(--clr-dark);
  color: var(--clr-light);
}

.service-card--accent h3 { color: #fff; }
.service-card--accent p { color: var(--clr-light); }
.service-card--accent li { color: rgba(255,255,255,0.6); }

.service-card__icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  margin-bottom: 22px;
}

.service-card h3 {
  font-family: var(--ff-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--clr-mid);
  margin-bottom: 18px;
}

.service-card ul li {
  font-size: 0.88rem;
  color: var(--clr-mid);
  padding: 6px 0;
  border-bottom: 1px solid var(--clr-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-card--accent ul li { border-color: rgba(255,255,255,0.1); }

.service-card ul li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-red);
  flex-shrink: 0;
}

.service-card--accent ul li::before { background: var(--clr-green); }

/* =============================================
   VISION
   ============================================= */
.vision { background: var(--clr-surface); }

.vision__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.vision__text .section-title { text-align: left; }
.vision__text > p { color: var(--clr-mid); margin-bottom: 32px; }

.vision__pillars { display: flex; flex-direction: column; gap: 22px; }

.pillar {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.pillar__icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.pillar strong { display: block; font-weight: 600; margin-bottom: 4px; }
.pillar p { font-size: 0.88rem; color: var(--clr-mid); margin: 0; }

.vision__stat-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.stat {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.stat:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.stat__num {
  display: block;
  font-family: var(--ff-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--clr-red);
  line-height: 1;
  margin-bottom: 8px;
}

.stat__label {
  font-size: 0.8rem;
  color: var(--clr-mid);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* =============================================
   CHALLENGES
   ============================================= */
.challenges { background: var(--clr-white); }

.challenges__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.challenge-item {
  display: flex;
  gap: 20px;
  padding: 28px 24px;
  border: 1px solid var(--clr-light);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  align-items: flex-start;
}

.challenge-item:hover {
  box-shadow: var(--shadow);
  border-color: transparent;
  transform: translateY(-2px);
}

.challenge-item__icon {
  width: 44px; height: 44px;
  background: #FF4D4D12;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  color: var(--clr-red);
  flex-shrink: 0;
}

.challenge-item h4 {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 10px;
}

.challenge-item p {
  font-size: 0.88rem;
  color: var(--clr-mid);
  margin-bottom: 8px;
}

.challenge-item p strong { color: var(--clr-dark); }

/* =============================================
   PROCESS
   ============================================= */
.process { background: var(--clr-dark); color: #fff; }
.process .section-tag { color: var(--clr-green); background: #4DFFBC15; }
.process .section-title { color: #fff; }

.process__steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  flex-wrap: wrap;
  justify-content: center;
}

.process__step {
  flex: 1;
  min-width: 180px;
  max-width: 240px;
  text-align: center;
  padding: 0 16px;
}

.step__num {
  font-family: var(--ff-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--clr-red);
  line-height: 1;
  margin-bottom: 14px;
}

.process__step h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #fff;
}

.process__step p { font-size: 0.88rem; color: rgba(255,255,255,0.55); }

.process__connector {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-red), var(--clr-green));
  margin-top: 38px;
  flex-shrink: 0;
}

/* =============================================
   FAQ
   ============================================= */
.faq { background: var(--clr-surface); }

.faq__list {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq__item {
  background: var(--clr-white);
  border: 1px solid var(--clr-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.faq__item:hover { box-shadow: var(--shadow); }

.faq__q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-family: var(--ff-body);
}

.faq__q::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--clr-red);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq__q[aria-expanded="true"]::after { transform: rotate(45deg); }

.faq__a {
  max-height: 0;
  overflow: hidden;
  font-size: 0.9rem;
  color: var(--clr-mid);
  padding: 0 24px;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq__a.open {
  max-height: 200px;
  padding: 0 24px 20px;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: #0a0a0a;
  padding: 52px 0 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer__brand .brand-name { color: #fff; font-size: 1rem; }

.footer__tagline {
  font-size: 0.78rem;
  color: var(--clr-mid);
  font-style: italic;
}

.footer__info {
  width: min(920px, 100%);
  display: grid;
  grid-template-columns: 1fr 1.6fr 1fr;
  gap: 14px;
}

.footer__pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 58px;
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.14);
  color: rgba(255,255,255,0.78);
  font-size: 0.92rem;
  transition: var(--transition);
}

.footer__pill i { color: var(--clr-red); }

.footer__pill:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.08);
}

.footer__pill--address {
  text-align: center;
  cursor: default;
}

.footer__pill--address:hover {
  transform: none;
}

.footer__info a { color: rgba(255,255,255,0.85); }

.wa-link {
  color: #25D366 !important;
  font-weight: 600;
}

.wa-link i { color: #25D366 !important; }

.footer__maker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: rgba(255,255,255,0.7);
  font-size: 0.84rem;
  transition: color var(--transition);
}

.footer__maker:hover {
  color: var(--clr-green);
}

.footer__maker-logo {
  width: 26px;
  height: 26px;
  object-fit: contain;
  border-radius: 6px;
}

.footer__copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.25);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  width: 100%;
  text-align: center;
}

/* =============================================
   MOBILE FAB (CALL)
   ============================================= */
.fab-call {
  display: none;
  position: fixed;
  right: calc(16px + env(safe-area-inset-right, 0px));
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--clr-red);
  color: #fff;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(255, 77, 77, 0.45);
  z-index: 1200;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.fab-call svg {
  display: block;
  width: 22px;
  height: 22px;
}

.fab-call:hover {
  background: #f44343;
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 14px 36px rgba(255, 77, 77, 0.52);
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 0.9; transform: scaleY(1.15); }
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .vision__inner { grid-template-columns: 1fr; gap: 40px; }
  .vision__text .section-title { text-align: center; }
  .vision__text > p { text-align: center; }
  .vision__pillars { align-items: flex-start; }
  .process__connector { display: none; }
  .process__steps { gap: 32px; }
  .process__step { min-width: 140px; }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .section { padding: 64px 0; }
  .services__grid { grid-template-columns: 1fr; }
  .challenges__list { grid-template-columns: 1fr; }
  .vision__stat-block { grid-template-columns: 1fr 1fr; }
  .hero__title { font-size: clamp(2.2rem, 8vw, 3.5rem); }
  .footer__info {
    grid-template-columns: 1fr;
  }
  .footer__pill {
    justify-content: flex-start;
    text-align: left;
  }
  .footer__maker {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero__cta { flex-direction: column; align-items: center; }
  .vision__stat-block { grid-template-columns: 1fr; }
  .fab-call { display: flex; }
}