* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #f0f2f5;
    --white: #ffffff;
    --indigo: #4f46e5;
    --indigo-dark: #4338ca;
    --dark: #111827;
    --text: #374151;
    --text-dim: #9ca3af;
    --border: #e5e7eb;
    --green: #059669;
    --red: #dc2626;
}

body { font-family: 'Outfit', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
.container { max-width: 1000px; margin: 0 auto; padding: 0 24px; }

/* Nav */
.topnav { background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.nav-flex { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand-link { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--dark); }
.brand-icon { width: 32px; height: 32px; background: var(--indigo); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: white; font-size: 0.85rem; }
.brand-name { font-size: 1.1rem; color: var(--dark); }
.brand-name b { color: var(--indigo); }
.nav-right { display: flex; align-items: center; gap: 20px; }
.nav-item { text-decoration: none; color: var(--text-dim); font-weight: 500; font-size: 0.9rem; }
.nav-item:hover { color: var(--indigo); }
.nav-btn { padding: 8px 20px; background: var(--indigo); color: white; border: none; border-radius: 8px; font-weight: 600; font-size: 0.85rem; cursor: pointer; font-family: inherit; }
.user-info { font-size: 0.85rem; color: var(--text-dim); font-weight: 500; }

/* Landing */
.landing { padding: 100px 0 60px; text-align: center; }
.landing-content { max-width: 640px; margin: 0 auto; }
.tag { display: inline-block; padding: 6px 16px; background: rgba(79,70,229,0.06); border: 1px solid rgba(79,70,229,0.15); border-radius: 100px; color: var(--indigo); font-size: 0.8rem; font-weight: 600; margin-bottom: 20px; }
.landing h1 { font-size: 3rem; font-weight: 800; color: var(--dark); line-height: 1.1; margin-bottom: 16px; }
.hl { color: var(--indigo); }
.landing p { font-size: 1.05rem; color: var(--text-dim); line-height: 1.7; margin-bottom: 28px; }
.cta-row { display: flex; gap: 12px; justify-content: center; margin-bottom: 20px; }
.cta { display: inline-flex; align-items: center; justify-content: center; padding: 13px 28px; border-radius: 10px; font-weight: 600; font-size: 0.9rem; cursor: pointer; text-decoration: none; font-family: inherit; border: none; transition: all 0.2s; }
.cta.primary { background: var(--indigo); color: white; }
.cta.primary:hover { background: var(--indigo-dark); }
.cta.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.cta.ghost:hover { border-color: var(--indigo); color: var(--indigo); }
.cta.full { width: 100%; }
.cred-hint { font-size: 0.85rem; color: var(--text-dim); }
.cred-hint code { background: rgba(79,70,229,0.06); padding: 2px 8px; border-radius: 4px; color: var(--indigo); font-size: 0.85rem; }

/* Grid */
.grid-section { padding: 40px 0 60px; }
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.trio-card { background: var(--white); border: 1px solid var(--border); border-radius: 14px; padding: 28px; text-align: center; transition: border-color 0.2s; }
.trio-card:hover { border-color: var(--indigo); }
.trio-card i { font-size: 1.8rem; color: var(--indigo); margin-bottom: 14px; }
.trio-card h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.trio-card p { font-size: 0.85rem; color: var(--text-dim); line-height: 1.5; }

/* Modal */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; z-index: 200; }
.modal-box { background: var(--white); border-radius: 16px; padding: 32px; width: 400px; max-width: 90vw; }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.modal-header h2 { font-size: 1.3rem; font-weight: 700; color: var(--dark); }
.close-btn { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-dim); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-dim); margin-bottom: 6px; }
.field input { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: 10px; font-size: 0.9rem; outline: none; font-family: inherit; }
.field input:focus { border-color: var(--indigo); }

/* Dashboard */
.dash-page { padding: 40px 0 60px; }
.dash-page h1 { font-size: 1.6rem; font-weight: 700; color: var(--dark); margin-bottom: 24px; }
.dash-page h1 i { color: var(--indigo); margin-right: 10px; }
.dash-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.dash-card { background: var(--white); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.dash-card h3 { font-size: 0.8rem; color: var(--text-dim); font-weight: 600; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.05em; }
.big { font-size: 1.5rem; font-weight: 700; color: var(--dark); }
.datasets { background: var(--white); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.datasets h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 12px; }
.ds-row { padding: 10px 14px; background: var(--bg); border-radius: 8px; margin-bottom: 8px; font-size: 0.9rem; }
.ds-row i { color: var(--indigo); margin-right: 8px; }

/* Flag */
.flag-area { padding: 0 0 60px; }
.flag-box { background: var(--white); border: 1px solid var(--border); border-radius: 14px; padding: 24px; max-width: 600px; margin: 0 auto; }
.flag-box h3 { font-size: 1rem; font-weight: 700; margin-bottom: 14px; }
.flag-box h3 i { color: var(--indigo); margin-right: 8px; }
.flag-row { display: flex; gap: 10px; }
.flag-row input { flex: 1; padding: 12px 16px; border: 1px solid var(--border); border-radius: 10px; font-size: 0.9rem; outline: none; font-family: inherit; }
.flag-row input:focus { border-color: var(--indigo); }

.ok { padding: 12px; background: rgba(5,150,105,0.06); border: 1px solid rgba(5,150,105,0.2); border-radius: 8px; color: var(--green); font-weight: 600; margin-top: 12px; }
.fail { padding: 12px; background: rgba(220,38,38,0.06); border: 1px solid rgba(220,38,38,0.2); border-radius: 8px; color: var(--red); margin-top: 12px; }
.loading { text-align: center; padding: 40px; color: var(--text-dim); }
.ft { border-top: 1px solid var(--border); padding: 20px 0; text-align: center; }
.ft p { font-size: 0.8rem; color: var(--text-dim); }

@media (max-width: 768px) {
    .trio, .dash-grid { grid-template-columns: 1fr; }
    .landing h1 { font-size: 2rem; }
    .flag-row { flex-direction: column; }
}