/* ===================================================
   PAN BETON TOV — Main Stylesheet
   Prefix: .pb-
   =================================================== */

/* --- CSS Variables --- */
:root {
  --pb-bg: #12192A;
  --pb-bg-light: #1A2338;
  --pb-bg-card: #1E2A40;
  --pb-accent: #E8A723;
  --pb-accent-dim: rgba(232, 167, 35, 0.15);
  --pb-accent-glow: rgba(232, 167, 35, 0.35);
  --pb-text: #F5F5FA;
  --pb-text-muted: #9BA3B5;
  --pb-text-dim: #6B7385;
  --pb-border: rgba(245, 245, 250, 0.08);
  --pb-border-accent: rgba(232, 167, 35, 0.3);
  --pb-font-heading: 'Sora', sans-serif;
  --pb-font-body: 'Manrope', sans-serif;
  --pb-radius: 6px;
  --pb-radius-lg: 12px;
  --pb-transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --pb-spacing: 1.125rem;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--pb-font-body);
  background-color: var(--pb-bg);
  color: var(--pb-text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--pb-accent);
  text-decoration: none;
  transition: color var(--pb-transition);
}

a:hover {
  color: #F2BC4E;
}

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

/* --- Grain Overlay --- */
.pb-grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
}

/* --- Container --- */
.pb-container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Navigation --- */
.pb-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(18, 25, 42, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--pb-border);
}

.pb-nav__inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.pb-nav__logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--pb-text);
  font-family: var(--pb-font-heading);
  font-weight: 700;
  font-size: 1.1rem;
}

.pb-nav__logo:hover {
  color: var(--pb-text);
}

.pb-nav__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--pb-accent);
  color: var(--pb-bg);
  font-family: var(--pb-font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  clip-path: polygon(8% 0%, 100% 0%, 92% 100%, 0% 100%);
}

.pb-nav__logo-text {
  letter-spacing: -0.01em;
}

.pb-nav__links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.pb-nav__links a {
  color: var(--pb-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--pb-transition);
  position: relative;
}

.pb-nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--pb-accent);
  transition: width var(--pb-transition);
}

.pb-nav__links a:hover {
  color: var(--pb-text);
}

.pb-nav__links a:hover::after {
  width: 100%;
}

/* Mobile toggle */
.pb-nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.pb-nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--pb-text);
  transition: var(--pb-transition);
}

/* --- Buttons --- */
.pb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-family: var(--pb-font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--pb-radius);
  cursor: pointer;
  transition: all var(--pb-transition);
  border: none;
  text-decoration: none;
}

.pb-btn--primary {
  background: var(--pb-accent);
  color: var(--pb-bg);
}

.pb-btn--primary:hover {
  background: #F2BC4E;
  color: var(--pb-bg);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 167, 35, 0.25);
}

.pb-btn--outline {
  background: transparent;
  color: var(--pb-text);
  border: 1.5px solid var(--pb-border-accent);
}

.pb-btn--outline:hover {
  border-color: var(--pb-accent);
  color: var(--pb-accent);
  transform: translateY(-2px);
}

.pb-btn--full {
  width: 100%;
}

/* --- Hero --- */
.pb-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 1.5rem 160px;
  overflow: hidden;
  background: linear-gradient(165deg, var(--pb-bg) 0%, var(--pb-bg-light) 50%, var(--pb-bg) 100%);
}

.pb-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--pb-accent-dim) 0%, transparent 65%);
  pointer-events: none;
}

.pb-hero__content {
  max-width: 1160px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 2;
}

.pb-hero__tag {
  font-family: var(--pb-font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pb-accent);
  margin-bottom: 1.25rem;
}

.pb-hero__title {
  font-family: var(--pb-font-heading);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 1.5rem;
}

.pb-hero__accent {
  color: var(--pb-accent);
}

.pb-hero__subtitle {
  max-width: 520px;
  font-size: 1.1rem;
  color: var(--pb-text-muted);
  line-height: 1.7;
  margin-bottom: 2.25rem;
}

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

.pb-hero__diagonal {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: var(--pb-bg);
  clip-path: polygon(0 60%, 100% 0, 100% 100%, 0 100%);
  z-index: 1;
}

/* --- Sections --- */
.pb-section {
  padding: 5rem 0;
  position: relative;
}

.pb-section__header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.pb-section__label {
  font-family: var(--pb-font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--pb-accent);
  margin-bottom: 0.6rem;
}

.pb-section__title {
  font-family: var(--pb-font-heading);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* --- Divider --- */
.pb-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--pb-accent), transparent);
  margin: 1rem auto 0;
  border-radius: 2px;
}

.pb-divider--wide {
  max-width: 600px;
  width: 80%;
  margin: 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--pb-accent-dim), transparent);
}

/* --- Service Cards --- */
.pb-services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.pb-card {
  background: var(--pb-bg-card);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: all var(--pb-transition);
}

.pb-card:hover {
  border-color: var(--pb-border-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.pb-card__icon {
  width: 48px;
  height: 48px;
  color: var(--pb-accent);
  margin-bottom: 1.25rem;
}

.pb-card__title {
  font-family: var(--pb-font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.pb-card__text {
  font-size: 0.92rem;
  color: var(--pb-text-muted);
  line-height: 1.65;
}

.pb-card__line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--pb-accent), transparent);
  transform: scaleX(0);
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.pb-card:hover .pb-card__line {
  transform: scaleX(1);
}

/* --- Company Identity --- */
.pb-identity__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2.5rem;
  align-items: start;
}

.pb-identity__badge {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--pb-bg-card);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius-lg);
}

.pb-identity__badge-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.25rem;
}

.pb-identity__badge-title {
  font-family: var(--pb-font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.pb-identity__badge-text {
  font-size: 0.9rem;
  color: var(--pb-text-muted);
  line-height: 1.6;
}

.pb-identity__card {
  background: var(--pb-bg-card);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius-lg);
  padding: 2rem;
}

.pb-identity__list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pb-identity__item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--pb-border);
}

.pb-identity__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.pb-identity__item dt {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pb-text-dim);
}

.pb-identity__item dd {
  font-size: 1rem;
  font-weight: 500;
  color: var(--pb-text);
}

.pb-identity__item dd a {
  color: var(--pb-accent);
}

/* --- Marquee --- */
.pb-marquee {
  overflow: hidden;
  padding: 1.5rem 0;
  border-top: 1px solid var(--pb-border);
  border-bottom: 1px solid var(--pb-border);
  margin: 2rem 0;
}

.pb-marquee__track {
  display: flex;
  gap: 3rem;
  animation: pb-scroll 28s linear infinite;
  white-space: nowrap;
  width: max-content;
}

.pb-marquee__track span {
  font-family: var(--pb-font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pb-text-dim);
  position: relative;
}

.pb-marquee__track span::after {
  content: '\2022';
  margin-left: 3rem;
  color: var(--pb-accent);
  opacity: 0.5;
}

@keyframes pb-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Contact --- */
.pb-contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.pb-contact__intro {
  font-size: 1.05rem;
  color: var(--pb-text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.pb-contact__detail {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
  color: var(--pb-text-muted);
  font-size: 0.95rem;
}

.pb-contact__detail svg {
  flex-shrink: 0;
  color: var(--pb-accent);
  margin-top: 2px;
}

.pb-contact__detail a {
  color: var(--pb-accent);
}

/* --- Form --- */
.pb-form-group {
  margin-bottom: 1.25rem;
}

.pb-form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pb-text-muted);
  margin-bottom: 0.45rem;
}

.pb-form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--pb-bg-light);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  color: var(--pb-text);
  font-family: var(--pb-font-body);
  font-size: 0.95rem;
  transition: border-color var(--pb-transition), box-shadow var(--pb-transition);
  outline: none;
}

.pb-form-input::placeholder {
  color: var(--pb-text-dim);
}

.pb-form-input:focus {
  border-color: var(--pb-accent);
  box-shadow: 0 0 0 3px var(--pb-accent-dim);
}

.pb-form-input.pb-form-input--error {
  border-color: #E05252;
}

.pb-form-textarea {
  resize: vertical;
  min-height: 120px;
}

.pb-form-error {
  display: block;
  font-size: 0.8rem;
  color: #E05252;
  margin-top: 0.3rem;
  min-height: 1.1em;
}

.pb-form-success {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(232, 167, 35, 0.12);
  border: 1px solid var(--pb-border-accent);
  border-radius: var(--pb-radius);
  color: var(--pb-accent);
  font-size: 0.92rem;
  font-weight: 500;
  text-align: center;
}

/* --- Footer --- */
.pb-footer {
  background: var(--pb-bg-light);
  border-top: 1px solid var(--pb-border);
  padding: 3.5rem 0 1.5rem;
}

.pb-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.pb-footer__tagline {
  color: var(--pb-text-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
  line-height: 1.5;
}

.pb-footer__links h4,
.pb-footer__company h4 {
  font-family: var(--pb-font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  color: var(--pb-text);
}

.pb-footer__links a {
  display: block;
  color: var(--pb-text-muted);
  font-size: 0.88rem;
  margin-bottom: 0.6rem;
  transition: color var(--pb-transition);
}

.pb-footer__links a:hover {
  color: var(--pb-accent);
}

.pb-footer__company p {
  color: var(--pb-text-muted);
  font-size: 0.88rem;
  margin-bottom: 0.4rem;
}

.pb-footer__company a {
  color: var(--pb-accent);
}

.pb-footer__bottom {
  border-top: 1px solid var(--pb-border);
  padding-top: 1.25rem;
  text-align: center;
}

.pb-footer__bottom p {
  font-size: 0.82rem;
  color: var(--pb-text-dim);
}

/* --- Animations --- */
.pb-anim {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.pb-anim--visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .pb-identity__grid {
    grid-template-columns: 1fr;
  }

  .pb-contact__grid {
    grid-template-columns: 1fr;
  }

  .pb-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  .pb-nav__links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(18, 25, 42, 0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0;
    border-bottom: 1px solid var(--pb-border);
    transform: translateY(-120%);
    transition: transform var(--pb-transition);
    z-index: 999;
  }

  .pb-nav__links.pb-nav__links--open {
    transform: translateY(0);
  }

  .pb-nav__links li {
    border-bottom: 1px solid var(--pb-border);
  }

  .pb-nav__links a {
    display: block;
    padding: 0.9rem 0;
    font-size: 1rem;
  }

  .pb-nav__toggle {
    display: flex;
  }

  .pb-hero {
    padding: 100px 1.5rem 120px;
  }

  .pb-hero__title {
    font-size: clamp(2.2rem, 10vw, 3.2rem);
  }

  .pb-hero__actions {
    flex-direction: column;
  }

  .pb-services__grid {
    grid-template-columns: 1fr;
  }

  .pb-footer__grid {
    grid-template-columns: 1fr;
  }

  .pb-marquee__track span {
    font-size: 0.9rem;
  }
}