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

:root {
  --dark: #0D1F0D;
  --dark-mid: #1B3A1B;
  --green: #2A7A4A;
  --lime: #DBFF4F;
  --lime-dark: #b8d900;
  --light: #F4FAF4;
  --white: #FFFFFF;
  --text: #0D1F0D;
  --text-secondary: #5A7A5A;
  --border: #D8EAD8;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(13,31,13,0.08);
  --shadow-lg: 0 8px 48px rgba(13,31,13,0.14);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, #F4FAF4 0%, #FFFFFF 55%, #F0F8F2 100%);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--green); }

.acct-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 24px;
}
.acct-topbar .logo img { height: 26px; width: auto; display: block; }
.acct-topbar .topbar-right { display: flex; align-items: center; gap: 10px; }

.acct-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px 24px 80px;
}

.acct-narrow { max-width: 440px; margin: 6vh auto 0; }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 20px;
}

h1 { font-size: clamp(26px, 4vw, 34px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; }
h2 { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 16px; font-weight: 600; }
.muted { color: var(--text-secondary); }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.center { text-align: center; }

label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
input[type="email"], input[type="password"], input[type="text"], input[type="number"] {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: var(--light);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}
input:focus { border-color: var(--green); background: var(--white); }
.field { margin-bottom: 16px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, transform 0.15s, opacity 0.15s;
}
.btn-primary { background: var(--lime); color: var(--dark); }
.btn-primary:hover { background: var(--lime-dark); transform: translateY(-1px); }
.btn-dark { background: var(--dark); color: var(--lime); }
.btn-dark:hover { background: var(--dark-mid); }
.btn-outline { background: none; color: var(--dark); border: 2px solid var(--border); }
.btn-outline:hover { background: var(--light); border-color: var(--green); }
.btn-ghost { background: none; color: var(--text); padding: 8px 14px; }
.btn-ghost:hover { background: var(--light); }
.btn-danger { background: none; color: #B42318; border: 2px solid #F3C5C0; }
.btn-danger:hover { background: #FEF3F2; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.alert { padding: 12px 14px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 16px; }
.alert-error { background: #FEF3F2; color: #B42318; border: 1px solid #F3C5C0; }
.alert-success { background: #ECFDF3; color: #027A48; border: 1px solid #A6F4C5; }
.alert-info { background: rgba(42,122,74,0.08); color: var(--green); border: 1px solid var(--border); }
.hidden { display: none !important; }

.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.plan {
  position: relative;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  cursor: pointer;
  background: var(--white);
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.plan:hover { border-color: rgba(42,122,74,0.4); transform: translateY(-2px); }
.plan.selected { border-color: var(--green); box-shadow: 0 0 0 3px rgba(42,122,74,0.12); }
.plan .plan-name { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--green); }
.plan .plan-price { font-size: 32px; font-weight: 800; margin: 8px 0 2px; letter-spacing: -0.02em; }
.plan .plan-period { font-size: 14px; color: var(--text-secondary); }
.plan .plan-tag {
  position: absolute; top: 14px; right: 14px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  background: var(--lime); color: var(--dark); padding: 4px 10px; border-radius: 20px;
}

.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.row:last-child { border-bottom: none; }
.row .label { color: var(--text-secondary); font-size: 14px; }
.row .value { font-weight: 600; font-size: 15px; text-align: right; }

.badge { display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 20px; text-transform: capitalize; }
.badge-active { background: #ECFDF3; color: #027A48; }
.badge-canceled { background: #FEF3F2; color: #B42318; }
.badge-pending { background: #FFFAEB; color: #B54708; }

.usage-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.usage-box { background: var(--light); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px; text-align: center; }
.usage-box .big { font-size: 28px; font-weight: 800; color: var(--dark); }
.usage-box .small { font-size: 13px; color: var(--text-secondary); }

.bill-item { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.bill-item:last-child { border-bottom: none; }
.bill-item .bill-desc { font-weight: 600; }
.bill-item .bill-date { color: var(--text-secondary); font-size: 13px; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(13,31,13,0.5);
  display: flex; align-items: center; justify-content: center; padding: 24px; z-index: 200;
}
.modal {
  background: var(--white); border-radius: var(--radius); padding: 28px;
  max-width: 420px; width: 100%; box-shadow: var(--shadow-lg);
}
.modal h2 { margin-bottom: 10px; }
.modal-actions { display: flex; gap: 10px; margin-top: 22px; }
.modal-actions .btn { flex: 1; }

.spinner-wrap { text-align: center; padding: 60px 0; color: var(--text-secondary); }
.spinner {
  width: 36px; height: 36px; border: 3px solid var(--border); border-top-color: var(--green);
  border-radius: 50%; margin: 0 auto 14px; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 560px) {
  .plans, .usage-grid { grid-template-columns: 1fr; }
  .acct-topbar, .acct-wrap { padding-left: 18px; padding-right: 18px; }
}