/* ================================================
   Components — Nav, Buttons, Cards, Footer
   Premium & Trust-Evoking Edition
   ================================================ */

/* ---- BUTTONS ---- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.8rem 1.85rem;
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(184, 49, 47, 0.25);
}

.btn--primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(184, 49, 47, 0.35);
}

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

.btn--dark:hover {
  background-color: #252A3A;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(0, 0, 0, 0.12);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.btn--outline-light {
  background: transparent;
  color: var(--color-text-on-dark);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn--outline-light:hover {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

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

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

.btn--sm {
  padding: 0.55rem 1.3rem;
  font-size: var(--fs-small);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: var(--fs-body-lg);
}

.btn .btn-arrow {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* ---- NAVIGATION ---- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: 1.15rem 0;
  transition: all var(--transition-slow);
}

.nav.scrolled {
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04), var(--shadow-sm);
  padding: 0.65rem 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  z-index: var(--z-modal);
}

.nav__logo img,
.nav__logo svg {
  height: 42px;
  width: auto;
}

.nav__logo-text {
  font-size: 1.3rem;
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-tight);
  color: var(--color-dark);
}

.nav__logo-text span {
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
  border-radius: 1px;
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  z-index: var(--z-modal);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: var(--z-modal);
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav__hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav overlay */
.nav__mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(24px);
  z-index: var(--z-overlay);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
}

.nav__mobile.active {
  display: flex;
}

.nav__mobile a {
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
}

.nav__mobile a:hover {
  color: var(--color-primary);
}

/* ---- CARDS ---- */

.card {
  background: var(--color-light-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  border: 1px solid var(--color-light-border);
  box-shadow: var(--shadow-card);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

.card--dark {
  background: var(--color-dark-card);
  border-color: var(--color-dark-border);
  color: var(--color-text-on-dark);
  box-shadow: none;
}

.card--dark:hover {
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card--dark h3, .card--dark h4 {
  color: var(--color-text-on-dark);
}

.card--dark p {
  color: var(--color-text-on-dark-muted);
}

.card--service {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.card--service .card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.5rem;
  transition: all var(--transition-base);
}

.card:hover .card__icon {
  background: var(--color-primary);
  color: #fff;
}

.card--dark .card__icon {
  background: rgba(184, 49, 47, 0.2);
}

.card--dark:hover .card__icon {
  background: var(--color-primary);
  color: #fff;
}

.card--service h3 {
  font-size: var(--fs-h4);
  line-height: var(--lh-tight);
}

.card--service p {
  font-size: var(--fs-small);
  flex-grow: 1;
  line-height: var(--lh-relaxed);
}

.card--service .card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  transition: gap var(--transition-fast);
}

.card--service .card__link:hover {
  gap: var(--space-sm);
}

/* Value cards (Why Choose) */
.card--value {
  padding: var(--space-xl) var(--space-2xl);
  border-radius: var(--radius-lg);
  background: var(--color-light-surface);
  border: 1px solid var(--color-light-border);
  box-shadow: var(--shadow-card);
}

.card--value:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

.card--value h4 {
  margin-bottom: var(--space-sm);
  font-size: var(--fs-h4);
}

.card--value p {
  font-size: var(--fs-small);
}

/* ---- TESTIMONIAL ---- */

.testimonial-slider {
  position: relative;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  transition: transform var(--transition-smooth);
}

.testimonial-slide {
  min-width: 100%;
  padding: var(--space-3xl) var(--space-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-3xl);
}

.testimonial-avatar {
  flex-shrink: 0;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-dark-card), var(--color-dark-surface));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-h1);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  border: 3px solid rgba(184, 49, 47, 0.3);
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-content {
  flex: 1;
}

.testimonial-company {
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-md);
  color: var(--color-text-on-dark);
  letter-spacing: var(--ls-tight);
}

.testimonial-quote {
  font-size: var(--fs-body-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-text-on-dark-muted);
  margin-bottom: var(--space-lg);
  font-style: italic;
  position: relative;
  padding-left: 1.5rem;
  border-left: 3px solid var(--color-primary);
}

.testimonial-author {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-primary-light);
  letter-spacing: var(--ls-wide);
}

.testimonial-controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  justify-content: center;
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all var(--transition-base);
}

.testimonial-dot.active {
  background: var(--color-primary);
  width: 24px;
  border-radius: var(--radius-full);
}

.testimonial-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--color-text-on-dark-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  font-size: 1.25rem;
}

.testimonial-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-text-on-dark);
}

/* ---- STATS ---- */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat-item {
  padding: var(--space-xl);
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--color-light-border);
}

.stat-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
  letter-spacing: var(--ls-tight);
}

.stat-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
}

/* ---- CLIENT LOGOS ---- */

.logo-marquee {
  overflow: hidden;
  padding: var(--space-2xl) 0;
  position: relative;
}

.logo-marquee::before,
.logo-marquee::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 120px;
  z-index: 2;
}

.logo-marquee::before {
  left: 0;
  background: linear-gradient(to right, var(--color-light), transparent);
}

.logo-marquee::after {
  right: 0;
  background: linear-gradient(to left, var(--color-light), transparent);
}

.logo-track {
  display: flex;
  gap: var(--space-4xl);
  animation: marquee 40s linear infinite;
  width: max-content;
  align-items: center;
}

.logo-track:hover {
  animation-play-state: paused;
}

.logo-item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  padding: 0 var(--space-md);
  transition: all var(--transition-base);
  font-size: var(--fs-body-lg);
  font-weight: var(--fw-bold);
  color: var(--color-text-muted);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  white-space: nowrap;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---- FOOTER ---- */

.footer {
  background-color: var(--color-dark);
  color: var(--color-text-on-dark);
  padding: var(--space-5xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-4xl);
  margin-bottom: var(--space-3xl);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer__logo img {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer__logo-text {
  font-size: 1.3rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-on-dark);
}

.footer__logo-text span {
  color: var(--color-primary);
}

.footer__contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-small);
  color: var(--color-text-on-dark-muted);
  transition: color var(--transition-fast);
}

.footer__contact-item:hover {
  color: var(--color-text-on-dark);
}

.footer__contact-item svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  opacity: 0.7;
}

.footer__heading {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-xl);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__link {
  font-size: var(--fs-small);
  color: var(--color-text-on-dark-muted);
  transition: all var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-text-on-dark);
  transform: translateX(2px);
}

.footer__bottom {
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--color-text-on-dark-muted);
  letter-spacing: var(--ls-wide);
}

/* ---- PAGE HEADER ---- */

.page-header {
  padding: calc(var(--space-5xl) + 60px) 0 var(--space-4xl);
  background: linear-gradient(160deg, var(--color-dark) 0%, var(--color-dark-surface) 60%, #1E2235 100%);
  color: var(--color-text-on-dark);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(184, 49, 47, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-header h1 {
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-md);
  letter-spacing: var(--ls-tight);
}

.page-header p {
  color: var(--color-text-on-dark-muted);
  max-width: 560px;
  margin: 0 auto;
  font-size: var(--fs-body-lg);
  line-height: var(--lh-relaxed);
}

/* ---- ACCORDION ---- */

.accordion-item {
  border: 1px solid var(--color-light-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-sm);
  transition: box-shadow var(--transition-base);
}

.accordion-item:hover {
  box-shadow: var(--shadow-sm);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  background: var(--color-light-surface);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.accordion-trigger:hover {
  background: var(--color-light-alt);
}

.accordion-trigger svg {
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.accordion-item.active .accordion-trigger svg {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth);
}

.accordion-content__inner {
  padding: 0 var(--space-xl) var(--space-lg);
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  line-height: var(--lh-relaxed);
}

/* ---- SECTION LABELS (Premium touch) ---- */

.section-label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  position: relative;
  padding-left: 2rem;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1.25rem;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}