/* =========================================
   Mobile (base styles are mobile-first)
   Additional mobile adjustments
   ========================================= */
@media (max-width: 767px) {
  :root {
    --nav-height: 60px;
    --container-padding: var(--space-4);
  }

  /* Nav */
  .nav__links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: rgba(26, 26, 26, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-7);
    z-index: 999;
  }

  .nav__links--open {
    display: flex;
  }

  .nav__links--open li {
    opacity: 0;
    transform: translateY(20px);
    animation: navLinkFade 400ms ease forwards;
  }

  .nav__links--open li:nth-child(1) { animation-delay: 100ms; }
  .nav__links--open li:nth-child(2) { animation-delay: 200ms; }
  .nav__links--open li:nth-child(3) { animation-delay: 300ms; }
  .nav__links--open li:nth-child(4) { animation-delay: 400ms; }
  .nav__links--open li:nth-child(5) { animation-delay: 500ms; }

  .nav__links--open .nav__link {
    font-size: var(--text-xl);
    padding: var(--space-3) var(--space-5);
  }

  .nav__links--open .nav__cta {
    font-size: var(--text-xl);
    padding: var(--space-3) var(--space-6);
  }

  @keyframes navLinkFade {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .nav__hamburger {
    display: flex;
    z-index: 1001;
  }

  /* Hero */
  .hero {
    min-height: 100vh;
    min-height: 100dvh;
  }

  .hero__content {
    padding: var(--space-4);
  }

  .hero__logo svg {
    width: 220px;
  }

  .hero__tagline {
    font-size: clamp(1.6rem, 6vw, 2.4rem);
  }

  .hero__subtitle {
    font-size: var(--text-base);
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .hero__actions .btn {
    width: 100%;
    max-width: 280px;
    text-align: center;
    padding: 16px 32px;
    font-size: var(--text-base);
  }

  .hero__scroll {
    display: none;
  }

  /* Sections */
  .section {
    padding: var(--space-7) 0;
  }

  .section__header {
    margin-bottom: var(--space-6);
  }

  .section__title {
    font-size: clamp(1.3rem, 5vw, 1.8rem);
  }

  .section__desc {
    font-size: var(--text-base);
  }

  /* About */
  .about__grid {
    gap: var(--space-6);
  }

  .stat__number {
    font-size: var(--text-3xl);
  }

  /* Services */
  .service-card {
    padding: var(--space-5);
  }

  .service-card__title {
    font-size: var(--text-lg);
  }

  /* Platform */
  .platform__subsection {
    margin-bottom: var(--space-6);
  }

  .platform__subtitle {
    font-size: var(--text-base);
  }

  .dashboard-grid {
    gap: var(--space-3);
  }

  .dashboard-card {
    padding: var(--space-4);
  }

  .platform-card {
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .platform-card__icon {
    width: 32px;
    height: 32px;
  }

  .platform-card__desc {
    display: none;
  }

  .card-preview {
    display: none;
  }

  .platform-card__title {
    font-size: var(--text-base);
  }

  /* Markets */
  .market-card {
    padding: var(--space-5);
  }

  .market-card__header {
    flex-wrap: wrap;
  }

  .market-card__header h3 {
    font-size: var(--text-lg);
  }

  /* Contact */
  .contact__value {
    font-size: var(--text-base);
    word-break: break-all;
  }

  .contact__footnote p {
    font-size: var(--text-xs);
  }

  /* Footer */
  .footer {
    padding: var(--space-6) 0 var(--space-5);
  }

  .footer__content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer__links {
    justify-content: center;
    gap: var(--space-4);
  }

  .footer__links a {
    padding: var(--space-2) 0;
  }

  .footer__tagline {
    font-size: var(--text-xs);
  }
}

/* =========================================
   Small phones (< 360px)
   ========================================= */
@media (max-width: 359px) {
  :root {
    --container-padding: var(--space-3);
  }

  .hero__logo svg {
    width: 180px;
  }

  .hero__tagline {
    font-size: 1.4rem;
  }

  .stat__number {
    font-size: var(--text-2xl);
  }

  .badge {
    font-size: 0.65rem;
    padding: 2px var(--space-2);
  }
}

/* =========================================
   Tablet (768px+)
   ========================================= */
@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .markets__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: var(--space-8) 0;
  }
}

/* =========================================
   Desktop (1024px+)
   ========================================= */
@media (min-width: 1024px) {
  .about__grid {
    grid-template-columns: 3fr 2fr;
    gap: var(--space-9);
    align-items: start;
  }

  .dashboard-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .section {
    padding: var(--space-9) 0;
  }

  .nav__hamburger {
    display: none;
  }

  .nav__links {
    display: flex;
  }
}

/* =========================================
   Large Desktop (1280px+)
   ========================================= */
@media (min-width: 1280px) {
  .section {
    padding: var(--space-10) 0;
  }

  .hero__logo svg {
    width: 360px;
  }
}

/* =========================================
   Touch device optimizations
   ========================================= */
@media (hover: none) and (pointer: coarse) {
  .service-card:hover,
  .dashboard-card:hover,
  .platform-card:hover {
    transform: none;
  }

  .nav__link {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .footer__links a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .btn {
    min-height: 48px;
  }

  .platform-card {
    min-height: 60px;
  }

  .card-preview {
    display: none;
  }
}

/* =========================================
   Safe area insets (notched phones)
   ========================================= */
@supports (padding: env(safe-area-inset-bottom)) {
  .footer {
    padding-bottom: calc(var(--space-6) + env(safe-area-inset-bottom));
  }

  .nav {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }

  .nav__links--open {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
  }
}