:root {
    --abis-green: #22c55e;
    --abis-green-dark: #16a34a;
    --abis-dark: #111827;
    --abis-muted: #6b7280;
    --abis-surface: #ffffff;
    --abis-bg: #f3f8f4;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background:
            radial-gradient(circle at top left, rgba(34, 197, 94, 0.14), transparent 32%),
            radial-gradient(circle at bottom right, rgba(22, 163, 74, 0.12), transparent 28%),
            linear-gradient(180deg, #ffffff 0%, var(--abis-bg) 100%);
    color: var(--abis-dark);
}

.abis-shell {
    flex-grow: 1;
}

.abis-card {
    border: 0;
    border-radius: 1.5rem;
    box-shadow: 0 18px 50px rgba(17, 24, 39, 0.12);
    overflow: hidden;
}

.abis-brand {
    width: 4.25rem;
    height: 4.25rem;
    border-radius: 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--abis-green), var(--abis-green-dark));
    color: white;
    font-weight: 800;
    letter-spacing: 0.05em;
    box-shadow: 0 10px 24px rgba(34, 197, 94, 0.28);
}

.abis-logo {
    width: 4.5rem;
    height: auto;
    filter: drop-shadow(0 4px 6px rgba(34, 197, 94, 0.1));
}

.abis-title {
    letter-spacing: -0.03em;

}

.form-control {
    border-radius: 0.9rem;
    border: 1px solid #dbe5dd;
    background: #f8fbf8;
    padding: 0.9rem 1rem;
}

/* For Chrome, Safari, Edge, and Opera */
.no-spinners::-webkit-outer-spin-button,
.no-spinners::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* For Firefox */
.no-spinners {
  -moz-appearance: textfield;
  appearance: textfield;
}

.form-control:focus {
    border-color: rgba(34, 197, 94, 0.55);
    box-shadow: 0 0 0 0.2rem rgba(34, 197, 94, 0.15);
    background: #fff;
}

.btn-abis {
    border: 0;
    border-radius: 0.95rem;
    padding: 0.9rem 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--abis-green), var(--abis-green-dark));
    box-shadow: 0 12px 26px rgba(34, 197, 94, 0.25);
}

.btn-abis:hover,
.btn-abis:focus {
    background: linear-gradient(135deg, #1faa52, #15803d);
    box-shadow: 0 14px 28px rgba(22, 163, 74, 0.32);
}

.forgot-link {
    color: var(--abis-green-dark);
    text-decoration: none;
    font-weight: 600;
}

.forgot-link:hover {
    color: #0f7a35;
    text-decoration: underline;
}