/* ===================================================
   Regina Sistemi — Stylesheet
=================================================== */

:root {
  --gold: #f0c419;
  --gold-light: #f7dc6f;
  --gold-dark: #c9971b;
  --dark: #1c1c1e;
  --dark-soft: #2c2c30;
  --gray: #6b6b70;
  --gray-light: #8c8c92;
  --bg: #ffffff;
  --bg-alt: #faf8f3;
  --border: #ececec;

  --font-heading: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --container: 1180px;
  --radius: 14px;
  --transition: 0.3s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.text-gold { color: var(--gold-dark); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}

.btn--gold {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: var(--dark);
  box-shadow: 0 8px 20px rgba(240, 196, 25, 0.35);
}

.btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(240, 196, 25, 0.45);
}

.btn--ghost {
  background: transparent;
  border-color: var(--dark);
  color: var(--dark);
}

.btn--ghost:hover {
  background: var(--dark);
  color: #fff;
  transform: translateY(-2px);
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.header.is-scrolled {
  border-color: var(--border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}

.header .container {
  max-width: none;
}

.header__inner {
  display: flex;
  align-items: center;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand__logo {
  height: 42px;
  width: auto;
}

.brand__name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--dark);
  letter-spacing: -0.01em;
}

.brand__name span {
  color: var(--gold-dark);
  font-weight: 600;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 76px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(240,196,25,0.18), transparent 55%),
    radial-gradient(circle at 10% 90%, rgba(240,196,25,0.12), transparent 50%),
    var(--bg-alt);
  z-index: -1;
}

.hero__inner {
  max-width: 820px;
  padding-block: 4rem;
}

.hero__brand {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin-bottom: 1.6rem;
}

.hero__logo {
  height: clamp(64px, 9vw, 96px);
  width: auto;
  flex-shrink: 0;
}

.hero__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--gray);
  max-width: 640px;
  margin-bottom: 2.2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid var(--gray-light);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-indicator span {
  width: 4px;
  height: 8px;
  background: var(--gold);
  border-radius: 2px;
  animation: scrollDown 1.6s infinite;
}

@keyframes scrollDown {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

/* ---------- Section shared ---------- */
section { padding-block: clamp(4rem, 8vw, 7rem); }

.section-tag {
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 0.8rem;
}

.section-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--gray);
  max-width: 620px;
  font-size: 1.05rem;
  margin-bottom: 3rem;
}

/* ---------- Services ---------- */
.services { background: var(--bg); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6rem;
}

.service-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.2rem 1.8rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0,0,0,0.06);
  border-color: rgba(240,196,25,0.4);
}

.service-card__icon {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: var(--dark);
  margin-bottom: 1.4rem;
}

.service-card__icon svg { width: 26px; height: 26px; }

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.service-card p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* ---------- Portfolio ---------- */
.portfolio { background: var(--bg-alt); }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2.6rem;
}

.filter-btn {
  padding: 0.55rem 1.3rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--gray);
  transition: all var(--transition);
}

.filter-btn:hover { border-color: var(--gold); color: var(--dark); }

.filter-btn.is-active {
  background: var(--dark);
  color: #fff;
  border-color: var(--dark);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-card.is-hidden { display: none; }

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0,0,0,0.07);
}

.project-card__thumb {
  height: 190px;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}

.project-card__thumb--2 { background: linear-gradient(135deg, #c9a568, #a9843f); }

.project-card__thumb--img {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.project-card__thumb--logo {
  background-size: auto 60%;
  background-color: var(--dark);
}

.project-card__tag {
  background: rgba(255,255,255,0.9);
  color: var(--dark);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
}

.project-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.4rem 1.5rem 1.6rem;
}

.project-card__body h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.project-card__body p {
  color: var(--gray);
  font-size: 0.92rem;
}

.project-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 1rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gold-dark);
}

.project-card__cta span {
  transition: transform var(--transition);
}

.project-card__cta:hover span { transform: translateX(3px); }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--bg);
  color: var(--dark);
  text-align: center;
}

.cta-banner__inner h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  margin-bottom: 1.8rem;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding-block: 3rem;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.brand--footer .brand__name { color: #fff; }
.brand--footer .brand__name span { color: var(--gold-light); }

.footer__copy {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}

/* ---------- Scroll reveal ---------- */
[data-aos] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-aos].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================================
   Responsive
=================================================== */
@media (max-width: 960px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .services__grid { grid-template-columns: 1fr; }
  .portfolio__grid { grid-template-columns: 1fr; }

  .hero__actions .btn { flex: 1 1 auto; text-align: center; }
}

@media (max-width: 480px) {
  .brand__name { font-size: 1rem; }
  .brand__logo { height: 34px; }
  .hero__inner { padding-block: 3rem; }
  .hero__brand { gap: 1rem; }
  .hero__logo { height: 56px; }
}