/* ==========================================================================
   CYWater · Components
   Header, footer, buttons, cards, forms, badges, tables, hero, etc.
   ========================================================================== */

/* ============================ Header ============================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 243, 236, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.header-inner {
  width: 100%;
  max-width: none;
  padding-inline: clamp(1.5rem, 3.2vw, 3rem);
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto minmax(260px, 1fr);
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  justify-self: start;
  gap: 0.7rem;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
/* Transparent PNG brand mark. */
.brand-logo {
  width: auto;
  height: 40px;
  display: block;
}
.brand { line-height: 1; }

/* Render the brand mark in white against the dark footer. */
.brand-logo--footer {
  height: 46px;
  filter: brightness(0) invert(1);
}
.brand-name { line-height: 1; }
.brand-sub {
  display: block;
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 3px;
}

/* Keep primary navigation centered between balanced outer columns. */
.nav { justify-self: center; }
.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.4vw, 1.6rem);
}
.nav-link {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--ink-soft);
  padding: 0.5rem 0.2rem;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: color var(--dur) var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0.2rem; right: 0.2rem; bottom: 0.1rem;
  height: 1.5px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav-link:hover, .nav-link[aria-current="true"] { color: var(--ink); }
.nav-link:hover::after, .nav-link[aria-current="true"]::after { transform: scaleX(1); }

/* dropdown */
.has-dropdown { position: relative; }
.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  min-width: 230px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1; visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown a {
  display: block;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  color: var(--ink-soft);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.dropdown a:hover { background: var(--paper); color: var(--ink); }
.dropdown .divider { margin: 0.35rem 0.5rem; }

/* header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  justify-self: end;
}

/* mobile toggle */
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  border-radius: var(--radius);
  color: var(--ink);
}
.nav-toggle span {
  position: relative;
  width: 22px; height: 1.5px;
  background: var(--ink);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0;
  width: 22px; height: 1.5px; background: var(--ink);
  transition: transform var(--dur) var(--ease);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
body.nav-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ============================ Footer ============================ */
.site-footer {
  margin-top: auto;
  background: var(--ink);
  color: rgba(255,255,255,0.7);
  padding-top: var(--sp-9);
  border-top: 4px solid var(--teal);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--sp-7);
  padding-bottom: var(--sp-8);
}
.footer-brand .brand { color: var(--white); margin-bottom: var(--sp-3); }
.footer-brand .brand-sub { color: rgba(255,255,255,0.5); }
.footer-tag {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: rgba(255,255,255,0.6);
  max-width: 32ch;
}
.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: var(--sp-4);
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.55rem; }
.footer-col a {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.65);
  transition: color var(--dur) var(--ease);
}
.footer-col a:hover { color: var(--teal-soft); }
.footer-newsletter {
  display: flex; gap: 0.5rem;
  margin-top: var(--sp-3);
}
.footer-newsletter input {
  flex: 1;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--white);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  min-width: 0;
}
.footer-newsletter input::placeholder { color: rgba(255,255,255,0.4); }
.footer-newsletter input:focus { outline: none; border-color: var(--teal); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-block: var(--sp-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.45);
  flex-wrap: wrap;
}
.footer-bottom > span:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
}
.footer-social { display: flex; gap: 0.6rem; }
.footer-social a {
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  color: rgba(255,255,255,0.6);
  transition: all var(--dur) var(--ease);
}
.footer-social a:hover { background: var(--teal); border-color: var(--teal); color: var(--white); }
.footer-social svg { width: 16px; height: 16px; }

/* ============================ Buttons ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.75rem 1.5rem;
  border-radius: 100px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
  line-height: 1;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--ink);
  color: var(--white);
}
.btn-primary:hover { background: var(--teal-deep); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-accent {
  background: var(--teal);
  color: var(--white);
}
.btn-accent:hover { background: var(--teal-deep); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-outline {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn-outline:hover { background: var(--ink); color: var(--white); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover { background: rgba(14,27,44,0.06); }
.btn-lg { padding: 0.95rem 2rem; font-size: var(--fs-base); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* ============================ Cards ============================ */
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: transparent; }

.card-media {
  aspect-ratio: 16 / 10;
  background: var(--paper-deep);
  position: relative;
  overflow: hidden;
}
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.card:hover .card-media img { transform: scale(1.04); }
.card-body { padding: var(--sp-5); display: flex; flex-direction: column; gap: 0.6rem; flex: 1; }
.card-meta {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: var(--fs-xs);
  color: var(--ink-mute);
}
.card-tag {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal);
}
.card-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-md);
  line-height: 1.3;
  color: var(--ink);
}
.card-excerpt { font-size: var(--fs-sm); color: var(--ink-soft); }

/* feature card (icon-led) */
.feature {
  padding: var(--sp-6);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  transition: all var(--dur) var(--ease);
  height: 100%;
}
.feature:hover { border-color: var(--teal); box-shadow: var(--shadow); transform: translateY(-2px); }
.feature-icon {
  width: 48px; height: 48px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--teal-tint);
  color: var(--teal);
  border-radius: var(--radius);
  margin-bottom: var(--sp-4);
}
.feature-icon svg { width: 24px; height: 24px; }
.feature h3 { margin-bottom: 0.4rem; }
.feature p { font-size: var(--fs-sm); }

/* ============================ Badges & chips ============================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  letter-spacing: 0.02em;
}
.badge-teal { background: var(--teal-tint); color: var(--teal-deep); }
.badge-gold { background: rgba(182,138,53,0.12); color: var(--gold); }
.badge-mute { background: var(--paper-deep); color: var(--ink-soft); }
.badge-live {
  background: rgba(46,125,82,0.1);
  color: var(--ok);
}
.badge-live::before {
  content: ""; width: 6px; height: 6px;
  background: var(--ok); border-radius: 50%;
  display: inline-block;
}

/* ============================ Forms ============================ */
.field { margin-bottom: var(--sp-4); }
.field-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--ink);
}
.field-label .req { color: var(--rust); }
.field-hint { font-size: var(--fs-xs); color: var(--ink-mute); margin-top: 0.35rem; }
.input, .textarea, .select {
  width: 100%;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.7rem 0.9rem;
  font-size: var(--fs-sm);
  color: var(--ink);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-tint);
}
.textarea { min-height: 130px; resize: vertical; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); }

/* ============================ Tables ============================ */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.table { background: var(--white); }
.table th, .table td {
  text-align: left;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: var(--fs-sm);
}
.table thead th {
  background: var(--paper-warm);
  font-weight: 600;
  color: var(--ink);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--paper); }

/* ============================ Breadcrumbs ============================ */
.crumbs {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: var(--fs-xs);
  color: var(--ink-mute);
  margin-bottom: var(--sp-4);
}
.crumbs a:hover { color: var(--teal); }
.crumbs span { opacity: 0.4; }

/* ============================ Hero ============================ */
.hero {
  position: relative;
  padding-block: clamp(4rem, 10vw, 7.5rem);
  overflow: hidden;
}
.hero-inner { position: relative; z-index: 2; max-width: 60ch; }
.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  max-width: 16ch;
  text-wrap: balance;
  line-height: 1.2;
  margin-bottom: var(--sp-6);
}
.hero .lead {
  line-height: 1.82;
  margin-bottom: var(--sp-7);
  max-width: 52ch;
}
.hero h1 { max-width: 24ch; }
.hero-title-line {
  display: block;
  white-space: nowrap;
}
html[lang="en"] .hero h1 {
  font-size: 3.1rem;
  line-height: 1.18;
  max-width: none;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.hero-watermark {
  position: absolute;
  right: -2%; top: -10%;
  width: 60%; height: 140%;
  opacity: 0.06;
  pointer-events: none;
  z-index: 1;
}

/* page hero (inner pages) */
.page-hero {
  background: var(--ink);
  color: var(--white);
  padding-block: clamp(3rem, 7vw, 5rem);
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 80% at 85% 20%, rgba(15,118,110,0.35), transparent 60%),
    radial-gradient(40% 60% at 10% 90%, rgba(15,118,110,0.2), transparent 60%);
  pointer-events: none;
}
.page-hero > .container { position: relative; z-index: 2; }
.page-hero h1 { color: var(--white); font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: var(--sp-4); }
.page-hero p { color: rgba(255,255,255,0.8); max-width: 56ch; }

/* ============================ Section header ============================ */
.section-head {
  margin-bottom: var(--sp-7);
  max-width: 60ch;
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-top: var(--sp-3); }
.section-head .lead { margin-top: var(--sp-3); }

/* ============================ Stats ============================ */
.stat { padding: var(--sp-5) 0; }
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 500;
  color: var(--teal);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat-label {
  margin-top: 0.5rem;
  font-size: var(--fs-sm);
  color: var(--ink-mute);
}

/* ============================ Misc utilities ============================ */
.media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--paper-deep);
  border: 1px solid var(--line);
}
.media-frame img { width: 100%; }
.aspect-wide { aspect-ratio: 16/9; object-fit: cover; }

.tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.kbd {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.8em;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 0.1em 0.4em;
  color: var(--ink-soft);
}

.callout {
  background: var(--teal-tint);
  border-left: 3px solid var(--teal);
  padding: var(--sp-4) var(--sp-5);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: var(--fs-sm);
}
.callout strong { color: var(--teal-deep); }

/* ============================ Avatar ============================ */
.avatar {
  width: 100%;
  aspect-ratio: 1/1;
  border-radius: var(--radius-lg);
  background: var(--paper-deep);
  overflow: hidden;
  position: relative;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-initials {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--teal-deep);
  background: var(--teal-tint);
}
.tier-action.is-disabled {
  cursor: not-allowed;
  opacity: 0.62;
  pointer-events: none;
}