/* BongX — bongosky.com design system */
:root {
  --navy: #0b1f33;
  --navy-mid: #132a42;
  --charcoal: #1a222c;
  --steel: #5c7388;
  --steel-soft: #8a9fb0;
  --forest: #1e6b4a;
  --forest-hover: #17563c;
  --paper: #f3f6f8;
  --white: #ffffff;
  --line: #d4dce4;
  --text: #1a222c;
  --muted: #5a6774;
  --danger: #9b2f2f;
  --header-h: 4.35rem;
  --max: 70rem;
  --font-display: "Syne", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --shadow: 0 16px 40px rgba(11, 31, 51, 0.1);
  --radius: 0.7rem;
  --ease: 0.22s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  min-height: 100%;
}

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

a {
  color: var(--forest);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--forest-hover);
}

:focus-visible {
  outline: 2px solid var(--forest);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 1000;
  background: var(--navy);
  color: var(--white);
  padding: 0.5rem 0.85rem;
  border-radius: 0.35rem;
}

.skip-link:focus {
  top: 0.75rem;
}

/* Brand wordmark */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: inherit;
  text-decoration: none;
}

.brand:hover {
  color: inherit;
}

.brand img,
.brand-mark {
  width: 2.05rem;
  height: 2.05rem;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: -0.07em;
  line-height: 1;
}

.brand-name .x {
  color: var(--forest);
  font-style: italic;
  display: inline-block;
  transform: skewX(-10deg);
  margin-left: 0.02em;
}

.hero .brand-name {
  font-size: clamp(3.2rem, 8vw, 6.4rem);
  letter-spacing: -0.08em;
  color: var(--white);
}

.hero .brand-name .x {
  color: #4cbf8a;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(243, 246, 248, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px rgba(11, 31, 51, 0.06);
}

.header-home {
  position: absolute;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, rgba(7, 16, 28, 0.55), transparent);
  backdrop-filter: none;
}

.header-home .brand,
.header-home .nav-list a,
.header-home .nav-toggle {
  color: var(--white);
}

.header-home.is-scrolled {
  position: sticky;
  background: rgba(11, 31, 51, 0.94);
  backdrop-filter: blur(10px);
}

.header-inner {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.2rem 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
  color: var(--forest);
}

.header-home .nav-list a:hover,
.header-home .nav-list a[aria-current="page"] {
  color: #8fe0b8;
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 0.35rem;
  cursor: pointer;
  color: var(--navy);
}

.nav-toggle svg {
  display: block;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.85rem;
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-primary:hover {
  background: var(--forest-hover);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--line);
}

.btn-outline:hover {
  border-color: var(--navy);
  color: var(--navy);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: var(--white);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 16, 28, 0.82) 0%, rgba(7, 16, 28, 0.45) 48%, rgba(7, 16, 28, 0.18) 100%);
}

.hero-content {
  position: relative;
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: calc(var(--header-h) + 4rem) 0 4.5rem;
  max-width: 40rem;
  margin-left: max(1rem, calc((100% - min(100% - 2rem, var(--max))) / 2));
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  letter-spacing: -0.04em;
  line-height: 1.2;
  margin: 0.85rem 0 0.7rem;
}

.hero .lede {
  margin: 0;
  max-width: 34rem;
  color: rgba(243, 246, 248, 0.9);
  font-size: 1.08rem;
}

.fade-in {
  animation: fadeUp 0.85s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .fade-in,
  .btn {
    animation: none;
    transition: none;
  }

  .btn:hover {
    transform: none;
  }
}

/* Layout */
.section {
  padding: 4.25rem 0;
}

.section-muted {
  background: var(--paper);
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

.page-hero {
  padding: 3.5rem 0 2rem;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  letter-spacing: -0.05em;
  margin: 0 0 0.6rem;
  color: var(--navy);
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--steel);
  margin: 0 0 0.55rem;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 42rem;
  margin: 0;
}

.split {
  display: grid;
  gap: 2rem;
}

@media (min-width: 860px) {
  .split {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }
}

.frame {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 16rem;
}

h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: -0.04em;
  color: var(--navy);
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.45rem, 2.5vw, 1.9rem);
  margin: 0 0 0.85rem;
}

h3 {
  font-size: 1.15rem;
  margin: 0 0 0.45rem;
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 1.15rem;
}

@media (min-width: 720px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }

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

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.3rem 1.4rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.values li {
  margin-bottom: 0.85rem;
}

.values strong {
  color: var(--navy);
}

.product-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: baseline;
}

.tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--forest);
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 860px) {
  .contact-grid {
    grid-template-columns: 0.85fr 1.15fr;
  }
}

.contact-meta p {
  margin: 0.25rem 0 1rem;
}

.contact-meta a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 600;
}

.contact-meta a:hover {
  color: var(--forest);
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

input,
select,
textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.65rem 0.75rem;
  margin-bottom: 0.95rem;
}

textarea {
  min-height: 8.5rem;
  resize: vertical;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-note {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.field-error,
.form-banner {
  font-size: 0.88rem;
  color: var(--danger);
  margin: -0.55rem 0 0.85rem;
}

.form-banner.ok {
  color: var(--forest);
  background: #e8f4ee;
  border: 1px solid #c5e3d2;
  border-radius: 0.5rem;
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
}

.form-success {
  display: none;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}

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

.is-hidden {
  display: none !important;
}

/* 404 */
.error-page {
  min-height: calc(100svh - 16rem);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 1rem;
}

.error-page .code {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4rem, 12vw, 7rem);
  letter-spacing: -0.08em;
  color: var(--navy);
  line-height: 1;
  margin: 0;
}

.error-page .code span {
  color: var(--forest);
  font-style: italic;
}

.error-page .lead {
  margin: 0 auto 1.5rem;
}

.error-page .cta-group {
  justify-content: center;
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: #c9d5e0;
  padding: 3rem 0 1.5rem;
}

.site-footer a {
  color: #e8eef3;
  text-decoration: none;
}

.site-footer a:hover {
  color: #8fe0b8;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

.footer-wordmark {
  color: var(--white);
  font-size: 1.6rem;
  margin: 0 0 0.5rem;
}

.site-footer h2 {
  color: var(--white);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 0.75rem;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li {
  margin: 0.3rem 0;
}

.footer-copy {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 2rem;
  padding-top: 1.1rem;
  font-size: 0.88rem;
}

.legal {
  max-width: 46rem;
}

.legal h2 {
  margin-top: 1.75rem;
}

/* Mobile nav */
@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }

  .nav-panel {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: 0.75rem 1rem 1.1rem;
    display: none;
  }

  .header-home .nav-panel {
    background: var(--navy);
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }

  .is-open .nav-panel {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }

  .nav-list .btn {
    width: 100%;
  }

  .header-home .nav-list a {
    color: var(--white);
  }
}