/* ==========================================================================
   Components — Nav, Footer, Hero, Cards, Buttons, Forms, Stats, CTA
   ========================================================================== */

/* ===================== NAVIGATION ===================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: var(--z-sticky);
  transition: background-color var(--transition-base);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  line-height: 1;
}

.nav__logo-img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 50%;
  flex-shrink: 0;
  display: block;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.nav__logo-text {
  font-size: var(--text-lg);
  font-weight: var(--font-black);
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: baseline;
}

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

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

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

.nav__link {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

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

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

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

.nav__cta {
  margin-left: var(--space-md);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-sm);
  background: none;
  border: none;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; }
.nav__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav__hamburger { display: flex; }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--color-bg-secondary);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__link {
    padding: var(--space-md) 0;
    width: 100%;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-base);
  }

  .nav__cta { margin-left: 0; margin-top: var(--space-md); }
}

/* ===================== FOOTER ===================== */
.site-footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand-name {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-md);
  line-height: 1;
}

.footer__brand-logo {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 50%;
  flex-shrink: 0;
  display: block;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.footer__brand-text {
  font-size: var(--text-lg);
  font-weight: var(--font-black);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: baseline;
}

.footer__brand-text span {
  color: var(--color-accent);
}

.footer__tagline {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-lg);
  max-width: 30ch;
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.footer__social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.footer__col-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
}

.footer__nav-link {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.footer__nav-link:hover { color: var(--color-accent); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.footer__copyright {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
}

/* ===================== HERO ===================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-bg-primary);
  padding-top: var(--nav-height);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0F172A 0%, #1F3A5F 50%, #0F172A 100%);
  z-index: 0;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(0, 168, 168, 0.12) 0%, transparent 60%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.hero__label::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background-color: var(--color-accent);
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: var(--font-black);
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xl);
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 55ch;
  margin-bottom: var(--space-2xl);
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast), transform var(--transition-fast),
              box-shadow var(--transition-fast);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

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

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: 0 8px 24px rgba(230, 51, 41, 0.35);
  color: #fff;
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}

.btn--secondary:hover {
  border-color: var(--color-text-primary);
  color: var(--color-text-primary);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-accent);
  border-color: transparent;
  padding-inline: 0;
}

.btn--ghost:hover {
  color: var(--color-accent-hover);
  transform: none;
}

.btn--ghost::after {
  content: '→';
  transition: transform var(--transition-fast);
}

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

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--text-sm);
}

/* ===================== SERVICE CARD ===================== */
.service-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transition: border-color var(--transition-base), transform var(--transition-base),
              box-shadow var(--transition-base);
}

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

.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent-muted);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  font-size: var(--text-xl);
}

.service-card__title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
}

.service-card__desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  flex: 1;
}

.service-card__cta {
  margin-top: auto;
}

/* ===================== INSIGHT CARD ===================== */
.insight-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-base), transform var(--transition-base),
              box-shadow var(--transition-base);
}

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

.insight-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--color-bg-elevated);
}

.insight-card__body {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  flex: 1;
}

.insight-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.insight-card__category {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.insight-card__date {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.insight-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  line-height: var(--leading-snug);
}

.insight-card__summary {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  flex: 1;
}

.insight-card__author {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* ===================== TEAM CARD ===================== */
.team-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.team-card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-4px);
}

.team-card__photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background-color: var(--color-bg-elevated);
}

.team-card__body {
  padding: var(--space-xl);
}

.team-card__name {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.team-card__role {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.team-card__bio {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ===================== STATS SECTION ===================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-xl);
}

.stat-item {
  text-align: center;
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-surface);
}

.stat-item__number {
  font-size: var(--text-5xl);
  font-weight: var(--font-black);
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-sm);
}

.stat-item__label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ===================== CTA SECTION ===================== */
.cta-section {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  padding: var(--space-3xl) 0;
}

.cta-section--accent {
  background: linear-gradient(135deg, #0a1628 0%, #0F172A 100%);
  border-color: rgba(0, 168, 168, 0.2);
}

.cta-section__title {
  font-size: var(--text-4xl);
  font-weight: var(--font-black);
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.cta-section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 55ch;
  margin-inline: auto;
  margin-bottom: var(--space-2xl);
}

/* ===================== FORMS ===================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
}

.form-label--required::after {
  content: ' *';
  color: var(--color-accent);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem var(--space-lg);
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--text-base);
  font-family: var(--font-sans);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.form-input.is-error,
.form-textarea.is-error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  display: none;
}

.form-error.is-visible { display: block; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 600px) {
  .form-grid { grid-template-columns: 1fr; }
}

/* Form response banners */
.form-banner {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  display: none;
}

.form-banner.is-visible { display: block; }

.form-banner--success {
  background-color: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--color-success);
}

.form-banner--error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--color-error);
}

/* Honeypot — visually hidden */
.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  tab-index: -1;
}

/* ===================== VALUE PROPOSITION ITEMS ===================== */
.value-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.value-item__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent-muted);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  font-size: var(--text-xl);
}

.value-item__title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.value-item__desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ===================== CONTACT INFO ===================== */
.contact-info-item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-item:last-child { border-bottom: none; }

.contact-info-item__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent-muted);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}

.contact-info-item__label {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-xs);
}

.contact-info-item__value {
  font-size: var(--text-base);
  color: var(--color-text-primary);
}

/* ===================== LOAD MORE / PAGINATION ===================== */
.load-more-wrap {
  text-align: center;
  margin-top: var(--space-2xl);
}

/* ===================== 404 PAGE ===================== */
.error-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) 0;
}

.error-page__code {
  font-size: clamp(6rem, 20vw, 12rem);
  font-weight: var(--font-black);
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -0.05em;
  opacity: 0.3;
}

.error-page__title {
  font-size: var(--text-3xl);
  font-weight: var(--font-extrabold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.error-page__desc {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
}

/* ===================== PAGE HERO (inner pages) ===================== */
.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
}

.page-hero__title {
  font-size: clamp(2rem, 5vw, var(--text-5xl));
  font-weight: var(--font-black);
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.page-hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 60ch;
}

/* ===================== CONTACT LAYOUT ===================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (max-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

.contact-info__title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.contact-info__intro {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-xl);
}

.contact-info__items {
  display: flex;
  flex-direction: column;
}

.contact-form-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}