/* ========================================================================
   OHB Marketing Site — Component Styles
   ======================================================================== */

/* ── UTILITIES ──────────────────────────────────────────── */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* Scroll reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ── HEADER ─────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-smooth),
              box-shadow var(--transition-smooth),
              background var(--transition-smooth);
}

[data-theme="dark"] .header {
  background: rgba(15, 17, 23, 0.85);
}

.header.is-scrolled {
  border-bottom-color: var(--color-divider);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .header__inner { height: 4.5rem; }
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  flex-shrink: 0;
}

.header__logo svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .header__nav { display: flex; }
}

.header__nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: -0.01em;
}

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

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header__login {
  display: none;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
}

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

@media (min-width: 768px) {
  .header__login { display: inline-flex; }
}

.btn--header {
  display: none;
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  text-decoration: none;
  white-space: nowrap;
}

.btn--header:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

@media (min-width: 768px) {
  .btn--header { display: inline-flex; }
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

/* Hamburger */
.hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  flex-shrink: 0;
}

.hamburger:hover {
  background: var(--color-surface-offset);
}

@media (min-width: 768px) {
  .hamburger { display: none; }
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-bg);
  padding: 5rem var(--space-6) var(--space-8);
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-menu.is-open {
  display: flex;
}

.mobile-menu a {
  display: block;
  padding: var(--space-3) 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-divider);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu__cta {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-menu__cta .btn--primary {
  text-align: center;
}

/* ── HERO ───────────────────────────────────────────────── */
.hero {
  padding: var(--space-12) 0 var(--space-16);
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero { padding: var(--space-16) 0 var(--space-20); }
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
}

@media (min-width: 768px) {
  .hero__grid {
    grid-template-columns: 1fr 1.1fr;
    gap: var(--space-12);
  }
}

.hero__content {
  text-align: left;
}

@media (max-width: 767px) {
  .hero__content { text-align: center; }
}

.hero__title {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--text-3xl);
  }
}

.hero__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 520px;
  margin-bottom: var(--space-8);
}

@media (max-width: 767px) {
  .hero__subtitle {
    margin-inline: auto;
  }
}

.hero__ctas {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}

@media (max-width: 767px) {
  .hero__ctas {
    justify-content: center;
  }
}

.hero__image-wrapper {
  position: relative;
}

.hero__image {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-hero);
  transform: perspective(1200px) rotateY(-2deg) rotateX(1deg);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 767px) {
  .hero__image {
    transform: none;
    border-radius: var(--radius-lg);
  }
}

.hero__image:hover {
  transform: perspective(1200px) rotateY(0deg) rotateX(0deg);
}

@media (max-width: 767px) {
  .hero__image:hover { transform: none; }
}

/* ── BUTTONS ────────────────────────────────────────────── */
.btn--primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--primary--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-xl);
}

.btn--secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: transparent;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  text-decoration: none;
  border: 1px solid var(--color-border);
  white-space: nowrap;
}

.btn--secondary:hover {
  background: var(--color-surface-offset);
  border-color: var(--color-text-faint);
}

.btn--secondary:active {
  background: var(--color-surface-offset-2);
}

/* ── SOCIAL PROOF BAR ───────────────────────────────────── */
.social-proof {
  padding: var(--space-8) 0;
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.social-proof__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: center;
}

@media (min-width: 768px) {
  .social-proof__inner {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-12);
  }
}

.social-proof__label {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  font-weight: 500;
  white-space: nowrap;
}

.social-proof__stats {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
  justify-content: center;
}

.social-proof__stat {
  text-align: center;
}

.social-proof__stat-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.social-proof__stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ── FEATURE SECTIONS ───────────────────────────────────── */
.feature-section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.feature-section:nth-child(even) {
  background: var(--color-surface-2);
}

.feature__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 768px) {
  .feature__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

@media (min-width: 768px) {
  .feature__grid--reversed .feature__image-wrap {
    order: 2;
  }
  .feature__grid--reversed .feature__content {
    order: 1;
  }
}

.feature__image-wrap {
  position: relative;
}

.feature__image {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.feature__content {
  text-align: left;
}

.feature__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
}

.feature__title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.025em;
  margin-bottom: var(--space-4);
}

.feature__description {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 520px;
}

/* ── HOW IT WORKS ───────────────────────────────────────── */
.how-it-works {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.section-header {
  margin-bottom: var(--space-12);
}

.section-header--center {
  text-align: center;
}

.section-header__title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.025em;
  margin-bottom: var(--space-3);
}

.section-header__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
}

.section-header--center .section-header__subtitle {
  margin-inline: auto;
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

.step {
  position: relative;
  padding: var(--space-6);
}

.step__number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3rem, 2rem + 3vw, 5rem);
  color: var(--color-primary-subtle);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-4);
}

[data-theme="dark"] .step__number {
  color: var(--color-primary-highlight);
}

.step__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.step__description {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Connector line between steps on desktop */
@media (min-width: 768px) {
  .step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: calc(var(--space-6) + 2rem);
    right: calc(-1 * var(--space-4));
    width: var(--space-8);
    height: 2px;
    background: var(--color-divider);
  }
}

/* ── ADDITIONAL FEATURES GRID ───────────────────────────── */
.extra-features {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
  background: var(--color-surface-2);
}

.extra-features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .extra-features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .extra-features__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.extra-feature {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  transition: box-shadow var(--transition-smooth),
              border-color var(--transition-smooth);
}

.extra-feature:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}

.extra-feature__icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.extra-feature__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.extra-feature__description {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── TESTIMONIALS ───────────────────────────────────────── */
.testimonials {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .testimonials__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
}

.testimonial__stars {
  display: flex;
  gap: 2px;
  color: #f59e0b;
  margin-bottom: var(--space-4);
}

.testimonial__stars svg {
  width: 16px;
  height: 16px;
}

.testimonial__quote {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.65;
  margin-bottom: var(--space-4);
  font-style: italic;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-surface-offset);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-primary);
  flex-shrink: 0;
}

.testimonial__name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.testimonial__role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ── PRICING ────────────────────────────────────────────── */
.pricing {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
  background: var(--color-surface-2);
}

.pricing__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 800px;
  margin-inline: auto;
}

@media (min-width: 640px) {
  .pricing__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pricing-card {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  display: flex;
  flex-direction: column;
}

.pricing-card--featured {
  border-color: var(--color-primary);
  position: relative;
}

.pricing-card__badge {
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-4);
  background: var(--color-primary);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-card__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.pricing-card__price {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.pricing-card__price-amount {
  font-size: var(--text-2xl);
  letter-spacing: -0.03em;
}

.pricing-card__price-period {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.pricing-card__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.pricing-card__features {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-8);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.pricing-card__features li svg {
  width: 18px;
  height: 18px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-card__cta {
  width: 100%;
  text-align: center;
  justify-content: center;
}

/* ── FINAL CTA ──────────────────────────────────────────── */
.final-cta {
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0;
  text-align: center;
}

.final-cta__title {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.final-cta__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

/* ── FOOTER ─────────────────────────────────────────────── */
.footer {
  padding: var(--space-10) 0;
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface-2);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: center;
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
}

.footer__logo svg {
  width: 24px;
  height: 24px;
}

.footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

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

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  width: 100%;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  margin-top: var(--space-2);
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__attribution {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
}

.footer__attribution:hover {
  color: var(--color-text-muted);
}