:root {
    --bg-0: #0b1020;
    --bg-1: #0f1630;
    --bg-card: #141c3a;
    --border: #24304f;
    --blue-400: #4f7cff;
    --blue-500: #3b64f5;
    --cyan-400: #35d0e0;
    --text-1: #eef2ff;
    --text-2: #b9c2e0;
    --text-3: #8390b5;
    --red-400: #ff6b6b;
    --green-400: #38d39f;
    --r-sm: 6px;
    --r: 10px;
    --r-lg: 16px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-0);
    color: var(--text-1);
    line-height: 1.5;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }

/* Navbar */
.navbar { background: rgba(11,16,32,.9); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; backdrop-filter: blur(8px); }
.navbar__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.navbar__brand { display: flex; align-items: center; cursor: pointer; }
.navbar__logo-img { height: 34px; width: auto; }
.navbar__links { display: flex; gap: 1.25rem; align-items: center; }
.navbar__actions { display: flex; gap: .5rem; align-items: center; }
.nav-link { color: var(--text-2); cursor: pointer; font-weight: 500; font-size: .95rem; }
.nav-link:hover { color: var(--text-1); }
.lang-toggle { background: transparent; border: 1px solid var(--border); color: var(--text-2); border-radius: var(--r-sm); padding: .3rem .6rem; cursor: pointer; font-size: .8rem; }
.menu-toggle { display: none; background: transparent; border: none; color: var(--text-1); font-size: 1.4rem; cursor: pointer; }
.cloak-nav { visibility: hidden; }

/* Hero */
.hero { padding: 4rem 0 3rem; }
.hero__title { font-size: 2.75rem; font-weight: 800; margin: .5rem 0; letter-spacing: -.02em; }
.hero__subtitle { font-size: 1.2rem; color: var(--text-2); max-width: 640px; }
.hero__cta { display: flex; gap: .75rem; margin: 1.5rem 0 2.5rem; flex-wrap: wrap; }

.pillars { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; }
.pillar { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r); padding: 1.25rem; }
.pillar h3 { margin: 0 0 .4rem; font-size: 1.05rem; color: var(--cyan-400); }
.pillar p { margin: 0; color: var(--text-3); font-size: .92rem; }

/* Sections */
.section { padding: 2.5rem 0; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.section-header h2 { margin: 0; font-size: 1.6rem; }

/* Card / form */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 1.5rem; margin-bottom: 1.5rem; }
.card h3 { margin: 0 0 1rem; font-size: 1.1rem; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group label { font-size: .82rem; color: var(--text-3); font-weight: 500; }
.form-group input, .form-group select {
    background: var(--bg-1); border: 1px solid var(--border); color: var(--text-1);
    border-radius: var(--r-sm); padding: .6rem .7rem; font-size: .95rem; font-family: inherit;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--blue-400); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; border: 1px solid transparent; border-radius: var(--r-sm); padding: .6rem 1.1rem; font-size: .95rem; font-weight: 600; cursor: pointer; font-family: inherit; text-decoration: none; }
.btn--primary { background: var(--blue-500); color: #fff; }
.btn--primary:hover { background: var(--blue-400); }
.btn--ghost { background: transparent; border-color: var(--border); color: var(--text-1); }
.btn--ghost:hover { border-color: var(--blue-400); }
.btn--lg { padding: .8rem 1.5rem; font-size: 1.05rem; }
.btn--sm { padding: .4rem .8rem; font-size: .85rem; }
.btn--loading { opacity: .6; pointer-events: none; }

/* Badge */
.badge { display: inline-block; padding: .25rem .6rem; border-radius: 999px; font-size: .78rem; font-weight: 600; }
.badge--blue { background: rgba(79,124,255,.15); color: var(--blue-400); }
.badge--green { background: rgba(56,211,159,.15); color: var(--green-400); }

/* Pricing / plans */
.pricing { padding: 2.5rem 0 1rem; }
.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.plan-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 1.75rem; }
.plan-card--pro { border-color: var(--blue-400); box-shadow: 0 0 0 1px var(--blue-500) inset; }
.plan-card h3 { margin: .35rem 0; font-size: 1.4rem; }
.plan-price { font-size: 1.6rem; font-weight: 800; color: var(--cyan-400); margin-bottom: 1rem; }
.plan-feats { list-style: none; padding: 0; margin: 0 0 1.25rem; display: flex; flex-direction: column; gap: .5rem; }
.plan-feats li { color: var(--text-2); font-size: .92rem; }
.pricing-note { color: var(--text-3); font-size: .85rem; margin-top: 1rem; text-align: center; }

/* BI dashboard */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r); padding: 1rem 1.15rem; display: flex; flex-direction: column; gap: .3rem; }
.stat-label { color: var(--text-3); font-size: .8rem; }
.stat-value { color: var(--cyan-400); font-size: 1.5rem; font-weight: 800; }
.bi-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.25rem; }

/* Upgrade banner (Pro-only pages on Free) */
.upgrade-banner { background: rgba(79,124,255,.12); border: 1px solid var(--blue-400); color: var(--text-1); border-radius: var(--r); padding: .75rem 1rem; margin-bottom: 1.25rem; font-size: .92rem; }
.upgrade-banner a { color: var(--blue-400); cursor: pointer; font-weight: 600; }

/* Auth */
.auth-page { display: flex; justify-content: center; padding: 3.5rem 1.25rem; }
.auth-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 2rem; width: 100%; max-width: 420px; }
.auth-card h2 { margin: 0 0 1.25rem; }
.auth-card .form-group { margin-bottom: 1rem; }
.auth-error { background: rgba(255,107,107,.12); color: var(--red-400); border-radius: var(--r-sm); padding: .55rem .7rem; font-size: .88rem; margin-bottom: .5rem; }
.auth-ok { text-align: center; }
.auth-ok p { margin-bottom: 1rem; color: var(--text-2); }
.auth-alt { margin-top: 1rem; font-size: .88rem; color: var(--text-3); text-align: center; }
.auth-alt a { color: var(--blue-400); cursor: pointer; }
.nav-user { color: var(--text-2); font-size: .9rem; font-weight: 500; }

/* Table */
.table { width: 100%; border-collapse: collapse; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; }
.table th, .table td { text-align: left; padding: .75rem 1rem; font-size: .92rem; }
.table th { color: var(--text-3); font-weight: 600; border-bottom: 1px solid var(--border); }
.table td { border-top: 1px solid var(--border); color: var(--text-2); }

@media (max-width: 760px) {
    .navbar__links { position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: var(--bg-1); border-bottom: 1px solid var(--border); padding: 1rem; display: none; }
    .navbar__links--open { display: flex; }
    .menu-toggle { display: block; }
    .hero__title { font-size: 2rem; }
}