/* ══════════════════════════════════════════════════════════════════════════
   OpenWaterSoftware — design system
   Palette: near-black surfaces, white type, electric blue accent.
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  /* Surfaces — layered from deepest to raised */
  --bg-void:      #05070c;
  --bg-base:      #080b12;
  --bg-surface:   #0d111a;
  --bg-raised:    #121724;
  --bg-overlay:   #171d2e;

  /* Type */
  --fg:           #ffffff;
  --fg-muted:     #a5adbf;
  --fg-subtle:    #6d768a;
  --fg-faint:     #464e60;

  /* Blue accent ramp */
  --blue-100:     #d6e6ff;
  --blue-300:     #8ec0ff;
  --blue-400:     #5aa9ff;
  --blue-500:     #2e7dff;
  --blue-600:     #1b5fe6;
  --blue-700:     #1544b0;

  /* Semantic */
  --success:      #2ee59d;
  --warning:      #ffb84d;
  --danger:       #ff5c6c;

  /* Borders & effects */
  --border:       rgba(255, 255, 255, 0.08);
  --border-hi:    rgba(255, 255, 255, 0.16);
  --glow-blue:    0 0 0 1px rgba(46, 125, 255, 0.4), 0 8px 32px -8px rgba(46, 125, 255, 0.45);
  --shadow-sm:    0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md:    0 8px 24px -8px rgba(0, 0, 0, 0.7);
  --shadow-lg:    0 24px 64px -16px rgba(0, 0, 0, 0.8);

  /* Geometry */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-full: 999px;

  --maxw: 1180px;
  --nav-h: 68px;

  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo,
          Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Reset ──────────────────────────────────────────────────────────────── */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Ambient blue wash — the "water" in the brand, kept subtle. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 500px at 12% -8%, rgba(46, 125, 255, 0.16), transparent 65%),
    radial-gradient(700px 420px at 92% 4%, rgba(27, 79, 216, 0.12), transparent 60%),
    linear-gradient(180deg, var(--bg-void), var(--bg-base) 45%);
}

img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.15;
  letter-spacing: -0.025em;
  font-weight: 700;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.15rem; }
p  { margin: 0 0 1em; color: var(--fg-muted); }

a {
  color: var(--blue-400);
  text-decoration: none;
  transition: color 0.15s var(--ease);
}
a:hover { color: var(--blue-300); }

code, kbd, pre { font-family: var(--mono); font-size: 0.875em; }
code {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  padding: 0.12em 0.4em;
  border-radius: var(--r-sm);
  color: var(--blue-300);
}
pre {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px;
  overflow-x: auto;
}
pre code { background: none; border: 0; padding: 0; color: var(--fg-muted); }

:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

::selection { background: rgba(46, 125, 255, 0.35); color: #fff; }

/* ── Layout ─────────────────────────────────────────────────────────────── */

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}
.container--narrow { max-width: 760px; }

.section { padding-block: clamp(56px, 9vw, 104px); }

.stack > * + * { margin-top: var(--gap, 16px); }
.row {
  display: flex;
  align-items: center;
  gap: var(--gap, 12px);
  flex-wrap: wrap;
}
.row--between { justify-content: space-between; }
.spacer { flex: 1; }

.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); }

/* ── Nav ────────────────────────────────────────────────────────────────── */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(8, 11, 18, 0.72);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.03em;
  color: var(--fg);
  white-space: nowrap;
}
.nav__brand:hover { color: var(--fg); }
.nav__brand img { width: 30px; height: 30px; }
.nav__brand b { color: var(--blue-400); font-weight: 700; }
.nav__brand span { color: var(--fg-subtle); font-weight: 500; }

.nav__links { display: flex; gap: 4px; align-items: center; }
.nav__link {
  padding: 8px 12px;
  border-radius: var(--r-md);
  color: var(--fg-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}
.nav__link:hover { background: var(--bg-raised); color: var(--fg); }
.nav__link[aria-current="page"] { color: var(--fg); background: var(--bg-raised); }

@media (max-width: 820px) {
  .nav__links--collapse { display: none; }
}

/* ── Buttons ────────────────────────────────────────────────────────────── */

.btn {
  --btn-bg: var(--bg-raised);
  --btn-fg: var(--fg);
  --btn-bd: var(--border-hi);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.12s var(--ease), filter 0.15s var(--ease),
              box-shadow 0.2s var(--ease), background 0.15s var(--ease);
}
.btn:hover { filter: brightness(1.14); color: var(--btn-fg); }
.btn:active { transform: translateY(1px); }
.btn[disabled], .btn[aria-disabled="true"] {
  opacity: 0.45;
  pointer-events: none;
}

.btn--primary {
  --btn-bg: linear-gradient(180deg, var(--blue-500), var(--blue-600));
  --btn-bd: transparent;
  box-shadow: var(--glow-blue);
}
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--fg-muted); }
.btn--ghost:hover { --btn-fg: var(--fg); background: var(--bg-raised); }
.btn--danger { --btn-bg: transparent; --btn-fg: var(--danger); --btn-bd: rgba(255,92,108,0.35); }
.btn--lg { padding: 14px 26px; font-size: 1rem; border-radius: var(--r-lg); }
.btn--sm { padding: 6px 12px; font-size: 0.82rem; }
.btn--block { width: 100%; }

/* ── Cards ──────────────────────────────────────────────────────────────── */

.card {
  background: linear-gradient(180deg, var(--bg-surface), var(--bg-base));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px;
  box-shadow: var(--shadow-md);
}
.card--interactive { transition: border-color 0.2s var(--ease), transform 0.2s var(--ease); }
.card--interactive:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.card--accent { border-color: rgba(46, 125, 255, 0.4); box-shadow: var(--glow-blue); }
.card__title { font-size: 1.05rem; font-weight: 650; margin: 0 0 4px; }
.card__meta { font-size: 0.84rem; color: var(--fg-subtle); }

/* ── Badges & pills ─────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--border-hi);
  background: var(--bg-raised);
  color: var(--fg-muted);
}
.badge--blue    { color: var(--blue-300); border-color: rgba(46,125,255,0.4); background: rgba(46,125,255,0.12); }
.badge--success { color: var(--success);  border-color: rgba(46,229,157,0.35); background: rgba(46,229,157,0.1); }
.badge--warning { color: var(--warning);  border-color: rgba(255,184,77,0.35); background: rgba(255,184,77,0.1); }
.badge--danger  { color: var(--danger);   border-color: rgba(255,92,108,0.35); background: rgba(255,92,108,0.1); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-400);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--blue-500);
}

/* ── Forms ──────────────────────────────────────────────────────────────── */

.field { display: block; margin-bottom: 16px; }
.field__label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--fg-muted);
  margin-bottom: 6px;
}
.field__hint { font-size: 0.79rem; color: var(--fg-subtle); margin-top: 6px; }
.field__error { font-size: 0.82rem; color: var(--danger); margin-top: 6px; }

.input, .select, .textarea {
  width: 100%;
  padding: 10px 13px;
  background: var(--bg-void);
  border: 1px solid var(--border-hi);
  border-radius: var(--r-md);
  color: var(--fg);
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.input::placeholder, .textarea::placeholder { color: var(--fg-faint); }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(46, 125, 255, 0.18);
}
.textarea { min-height: 96px; resize: vertical; }
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%236d768a' stroke-width='1.8'%3E%3Cpath d='M1 1.5 6 6.5l5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  background-size: 11px;
  padding-right: 34px;
}
.input-group { display: flex; }
.input-group .input { border-radius: var(--r-md) 0 0 var(--r-md); }
.input-group__suffix {
  display: flex;
  align-items: center;
  padding: 0 13px;
  background: var(--bg-raised);
  border: 1px solid var(--border-hi);
  border-left: 0;
  border-radius: 0 var(--r-md) var(--r-md) 0;
  color: var(--fg-subtle);
  font-size: 0.88rem;
}

/* ── Tables ─────────────────────────────────────────────────────────────── */

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r-lg); }
.table { width: 100%; border-collapse: collapse; font-size: 0.89rem; }
.table th, .table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table th {
  background: var(--bg-surface);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: rgba(255, 255, 255, 0.02); }
.table td.num { font-family: var(--mono); font-size: 0.85rem; }

/* ── Stats ──────────────────────────────────────────────────────────────── */

.stat { padding: 18px 20px; }
.stat__label {
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}
.stat__value {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.035em;
  margin-top: 6px;
  font-variant-numeric: tabular-nums;
}
.stat__delta { font-size: 0.82rem; color: var(--fg-subtle); margin-top: 2px; }

/* ── Alerts ─────────────────────────────────────────────────────────────── */

.alert {
  display: flex;
  gap: 12px;
  padding: 13px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--border-hi);
  background: var(--bg-raised);
  font-size: 0.89rem;
  margin-bottom: 20px;
}
.alert--success { border-color: rgba(46,229,157,0.35); background: rgba(46,229,157,0.08); color: #b6f5da; }
.alert--danger  { border-color: rgba(255,92,108,0.35); background: rgba(255,92,108,0.08); color: #ffc4ca; }
.alert--warning { border-color: rgba(255,184,77,0.35); background: rgba(255,184,77,0.08); color: #ffe0b3; }
.alert--info    { border-color: rgba(46,125,255,0.35); background: rgba(46,125,255,0.08); color: var(--blue-100); }

/* ── Hero ───────────────────────────────────────────────────────────────── */

.hero { padding-block: clamp(64px, 11vw, 132px) clamp(48px, 8vw, 88px); text-align: center; }
.hero h1 { max-width: 16ch; margin-inline: auto; }
.hero__lede {
  max-width: 60ch;
  margin: 20px auto 32px;
  font-size: clamp(1rem, 1.6vw, 1.16rem);
  color: var(--fg-muted);
}
.hero__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero__note { margin-top: 18px; font-size: 0.83rem; color: var(--fg-subtle); }

.text-gradient {
  background: linear-gradient(120deg, #fff 15%, var(--blue-400) 55%, var(--blue-600));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── Feature tiles ──────────────────────────────────────────────────────── */

.feature__icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--r-md);
  background: rgba(46, 125, 255, 0.12);
  border: 1px solid rgba(46, 125, 255, 0.3);
  color: var(--blue-400);
  margin-bottom: 14px;
}
.feature h3 { margin-bottom: 6px; }
.feature p { font-size: 0.9rem; margin: 0; }

/* ── Steps ──────────────────────────────────────────────────────────────── */

.step__num {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: var(--r-full);
  background: var(--bg-raised);
  border: 1px solid var(--border-hi);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--blue-400);
  margin-bottom: 12px;
}

/* ── Plan / price cards ─────────────────────────────────────────────────── */

.plan__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 14px 0 4px;
}
.plan__amount {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.plan__interval { color: var(--fg-subtle); font-size: 0.88rem; }
.plan__perks { list-style: none; margin: 16px 0; padding: 0; }
.plan__perks li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  font-size: 0.89rem;
  color: var(--fg-muted);
}
.plan__perks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 13px;
  height: 8px;
  border-left: 2px solid var(--blue-400);
  border-bottom: 2px solid var(--blue-400);
  transform: rotate(-45deg);
}

/* ── Dashboard shell ────────────────────────────────────────────────────── */

.shell { display: grid; grid-template-columns: 232px 1fr; gap: 28px; align-items: start; }
.sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sidebar__heading {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-faint);
  padding: 14px 12px 6px;
}
.sidebar__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--r-md);
  color: var(--fg-muted);
  font-size: 0.89rem;
  font-weight: 500;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}
.sidebar__link:hover { background: var(--bg-raised); color: var(--fg); }
.sidebar__link[aria-current="page"] {
  background: rgba(46, 125, 255, 0.12);
  color: var(--blue-300);
  box-shadow: inset 2px 0 0 var(--blue-500);
}
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; flex-direction: row; overflow-x: auto; padding-bottom: 8px; }
}

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.page-head h1 { font-size: 1.7rem; margin: 0; }
.page-head p { margin: 4px 0 0; font-size: 0.9rem; }

/* ── Checkout ───────────────────────────────────────────────────────────── */

.checkout { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px; align-items: start; }
@media (max-width: 880px) { .checkout { grid-template-columns: 1fr; } }

.summary__line {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.summary__line--total {
  border-top: 1px solid var(--border);
  margin-top: 6px;
  padding-top: 14px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--fg);
}

.provider-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border-hi);
  border-radius: var(--r-md);
  background: var(--bg-void);
  font-size: 0.86rem;
  color: var(--fg-muted);
}

/* ── Testimonials ───────────────────────────────────────────────────────── */

.quote {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin: 0;
  padding: 26px 24px;
  background: linear-gradient(180deg, var(--bg-surface), var(--bg-base));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.quote:hover { border-color: var(--border-hi); transform: translateY(-2px); }

.quote__text {
  position: relative;
  margin: 0;
  padding-top: 22px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--fg-muted);
}
/* Oversized opening quote mark, kept decorative and out of the a11y tree. */
.quote__text::before {
  content: "\201C";
  position: absolute;
  top: -14px;
  left: -4px;
  font-size: 3.4rem;
  line-height: 1;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--blue-500);
  opacity: 0.4;
}

.quote__author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.quote__avatar {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: var(--r-full);
  background: rgba(46, 125, 255, 0.14);
  border: 1px solid rgba(46, 125, 255, 0.32);
  color: var(--blue-300);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.quote__name {
  display: block;
  font-size: 0.9rem;
  font-weight: 650;
  color: var(--fg);
}
.quote__detail {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-subtle);
}

/* ── Empty state ────────────────────────────────────────────────────────── */

.empty {
  text-align: center;
  padding: 56px 24px;
  border: 1px dashed var(--border-hi);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.012);
}
.empty h3 { color: var(--fg-muted); }
.empty p { font-size: 0.9rem; max-width: 44ch; margin-inline: auto; }

/* ── Footer ─────────────────────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--border);
  margin-top: 72px;
  padding-block: 40px 32px;
  color: var(--fg-subtle);
  font-size: 0.86rem;
}
.footer a { color: var(--fg-muted); }
.footer a:hover { color: var(--blue-400); }
.footer__cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer__cols h4 {
  font-size: 0.74rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 12px;
}
.footer__cols ul { list-style: none; margin: 0; padding: 0; }
.footer__cols li { margin-bottom: 8px; }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
}
@media (max-width: 760px) { .footer__cols { grid-template-columns: 1fr 1fr; } }

/* ── Utilities ──────────────────────────────────────────────────────────── */

.muted   { color: var(--fg-muted); }
.subtle  { color: var(--fg-subtle); }
.center  { text-align: center; }
.mono    { font-family: var(--mono); }
.nowrap  { white-space: nowrap; }
.tnum    { font-variant-numeric: tabular-nums; }
.mt-0 { margin-top: 0; }  .mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 8px; } .mt-3 { margin-top: 16px; } .mt-4 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 16px; } .mb-4 { margin-bottom: 24px; }
.fs-sm { font-size: 0.86rem; } .fs-xs { font-size: 0.78rem; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.divider { height: 1px; background: var(--border); margin-block: 24px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}